diff options
| author | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-31 23:05:57 +1030 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-31 23:05:57 +1030 |
| commit | 2ca1a615835d9f4990f42102ab1f2ef434e7e89c (patch) | |
| tree | 726cf3d5f29a6c66c44e4bd68e7ebed2fd83d059 /drivers/media/video/cx18 | |
| parent | e12f0102ac81d660c9f801d0a0e10ccf4537a9de (diff) | |
| parent | 6a94cb73064c952255336cc57731904174b2c58f (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
arch/x86/kernel/io_apic.c
Diffstat (limited to 'drivers/media/video/cx18')
34 files changed, 1571 insertions, 1137 deletions
diff --git a/drivers/media/video/cx18/cx18-av-audio.c b/drivers/media/video/cx18/cx18-av-audio.c index 0b55837880a7..a2f0ad570434 100644 --- a/drivers/media/video/cx18/cx18-av-audio.c +++ b/drivers/media/video/cx18/cx18-av-audio.c @@ -4,6 +4,7 @@ * Derived from cx25840-audio.c * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -30,98 +31,165 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq) if (freq != 32000 && freq != 44100 && freq != 48000) return -EINVAL; - /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x10 */ - cx18_av_write(cx, 0x127, 0x50); + /* + * The PLL parameters are based on the external crystal frequency that + * would ideally be: + * + * NTSC Color subcarrier freq * 8 = + * 4.5 MHz/286 * 455/2 * 8 = 28.63636363... MHz + * + * The accidents of history and rationale that explain from where this + * combination of magic numbers originate can be found in: + * + * [1] Abrahams, I. C., "Choice of Chrominance Subcarrier Frequency in + * the NTSC Standards", Proceedings of the I-R-E, January 1954, pp 79-80 + * + * [2] Abrahams, I. C., "The 'Frequency Interleaving' Principle in the + * NTSC Standards", Proceedings of the I-R-E, January 1954, pp 81-83 + * + * As Mike Bradley has rightly pointed out, it's not the exact crystal + * frequency that matters, only that all parts of the driver and + * firmware are using the same value (close to the ideal value). + * + * Since I have a strong suspicion that, if the firmware ever assumes a + * crystal value at all, it will assume 28.636360 MHz, the crystal + * freq used in calculations in this driver will be: + * + * xtal_freq = 28.636360 MHz + * + * an error of less than 0.13 ppm which is way, way better than any off + * the shelf crystal will have for accuracy anyway. + * + * Below I aim to run the PLLs' VCOs near 400 MHz to minimze error. + * + * Many thanks to Jeff Campbell and Mike Bradley for their extensive + * investigation, experimentation, testing, and suggested solutions of + * of audio/video sync problems with SVideo and CVBS captures. + */ if (state->aud_input > CX18_AV_AUDIO_SERIAL2) { switch (freq) { case 32000: - /* VID_PLL and AUX_PLL */ - cx18_av_write4(cx, 0x108, 0x1408040f); + /* + * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 + * AUX_PLL Integer = 0x0d, AUX PLL Post Divider = 0x20 + */ + cx18_av_write4(cx, 0x108, 0x200d040f); - /* AUX_PLL_FRAC */ - /* 0x8.9504318a * 28,636,363.636 / 0x14 = 32000 * 384 */ - cx18_av_write4(cx, 0x110, 0x012a0863); + /* VID_PLL Fraction = 0x2be2fe */ + /* xtal * 0xf.15f17f0/4 = 108 MHz: 432 MHz pre-postdiv*/ + cx18_av_write4(cx, 0x10c, 0x002be2fe); + + /* AUX_PLL Fraction = 0x176740c */ + /* xtal * 0xd.bb3a060/0x20 = 32000 * 384: 393 MHz p-pd*/ + cx18_av_write4(cx, 0x110, 0x0176740c); /* src3/4/6_ctl */ - /* 0x1.f77f = (4 * 15734.26) / 32000 */ + /* 0x1.f77f = (4 * xtal/8*2/455) / 32000 */ cx18_av_write4(cx, 0x900, 0x0801f77f); cx18_av_write4(cx, 0x904, 0x0801f77f); cx18_av_write4(cx, 0x90c, 0x0801f77f); - /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x14 */ - cx18_av_write(cx, 0x127, 0x54); + /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x20 */ + cx18_av_write(cx, 0x127, 0x60); /* AUD_COUNT = 0x2fff = 8 samples * 4 * 384 - 1 */ cx18_av_write4(cx, 0x12c, 0x11202fff); /* - * EN_AV_LOCK = 1 + * EN_AV_LOCK = 0 * VID_COUNT = 0x0d2ef8 = 107999.000 * 8 = * ((8 samples/32,000) * (13,500,000 * 8) * 4 - 1) * 8 */ - cx18_av_write4(cx, 0x128, 0xa10d2ef8); + cx18_av_write4(cx, 0x128, 0xa00d2ef8); break; case 44100: - /* VID_PLL and AUX_PLL */ - cx18_av_write4(cx, 0x108, 0x1009040f); + /* + * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 + * AUX_PLL Integer = 0x0e, AUX PLL Post Divider = 0x18 + */ + cx18_av_write4(cx, 0x108, 0x180e040f); + + /* VID_PLL Fraction = 0x2be2fe */ + /* xtal * 0xf.15f17f0/4 = 108 MHz: 432 MHz pre-postdiv*/ + cx18_av_write4(cx, 0x10c, 0x002be2fe); - /* AUX_PLL_FRAC */ - /* 0x9.7635e7 * 28,636,363.63 / 0x10 = 44100 * 384 */ - cx18_av_write4(cx, 0x110, 0x00ec6bce); + /* AUX_PLL Fraction = 0x062a1f2 */ + /* xtal * 0xe.3150f90/0x18 = 44100 * 384: 406 MHz p-pd*/ + cx18_av_write4(cx, 0x110, 0x0062a1f2); /* src3/4/6_ctl */ - /* 0x1.6d59 = (4 * 15734.26) / 44100 */ + /* 0x1.6d59 = (4 * xtal/8*2/455) / 44100 */ cx18_av_write4(cx, 0x900, 0x08016d59); cx18_av_write4(cx, 0x904, 0x08016d59); cx18_av_write4(cx, 0x90c, 0x08016d59); + /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x18 */ + cx18_av_write(cx, 0x127, 0x58); + /* AUD_COUNT = 0x92ff = 49 samples * 2 * 384 - 1 */ cx18_av_write4(cx, 0x12c, 0x112092ff); /* - * EN_AV_LOCK = 1 + * EN_AV_LOCK = 0 * VID_COUNT = 0x1d4bf8 = 239999.000 * 8 = * ((49 samples/44,100) * (13,500,000 * 8) * 2 - 1) * 8 */ - cx18_av_write4(cx, 0x128, 0xa11d4bf8); + cx18_av_write4(cx, 0x128, 0xa01d4bf8); break; case 48000: - /* VID_PLL and AUX_PLL */ - cx18_av_write4(cx, 0x108, 0x100a040f); + /* + * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 + * AUX_PLL Integer = 0x0e, AUX PLL Post Divider = 0x16 + */ + cx18_av_write4(cx, 0x108, 0x160e040f); - /* AUX_PLL_FRAC */ - /* 0xa.4c6b6ea * 28,636,363.63 / 0x10 = 48000 * 384 */ - cx18_av_write4(cx, 0x110, 0x0098d6dd); + /* VID_PLL Fraction = 0x2be2fe */ + /* xtal * 0xf.15f17f0/4 = 108 MHz: 432 MHz pre-postdiv*/ + cx18_av_write4(cx, 0x10c, 0x002be2fe); + + /* AUX_PLL Fraction = 0x05227ad */ + /* xtal * 0xe.2913d68/0x16 = 48000 * 384: 406 MHz p-pd*/ + cx18_av_write4(cx, 0x110, 0x005227ad); /* src3/4/6_ctl */ - /* 0x1.4faa = (4 * 15734.26) / 48000 */ + /* 0x1.4faa = (4 * xtal/8*2/455) / 48000 */ cx18_av_write4(cx, 0x900, 0x08014faa); cx18_av_write4(cx, 0x904, 0x08014faa); cx18_av_write4(cx, 0x90c, 0x08014faa); + /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x16 */ + cx18_av_write(cx, 0x127, 0x56); + /* AUD_COUNT = 0x5fff = 4 samples * 16 * 384 - 1 */ cx18_av_write4(cx, 0x12c, 0x11205fff); /* - * EN_AV_LOCK = 1 + * EN_AV_LOCK = 0 * VID_COUNT = 0x1193f8 = 143999.000 * 8 = * ((4 samples/48,000) * (13,500,000 * 8) * 16 - 1) * 8 */ - cx18_av_write4(cx, 0x128, 0xa11193f8); + cx18_av_write4(cx, 0x128, 0xa01193f8); break; } } else { switch (freq) { case 32000: - /* VID_PLL and AUX_PLL */ - cx18_av_write4(cx, 0x108, 0x1e08040f); + /* + * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 + * AUX_PLL Integer = 0x0d, AUX PLL Post Divider = 0x30 + */ + cx18_av_write4(cx, 0x108, 0x300d040f); + + /* VID_PLL Fraction = 0x2be2fe */ + /* xtal * 0xf.15f17f0/4 = 108 MHz: 432 MHz pre-postdiv*/ + cx18_av_write4(cx, 0x10c, 0x002be2fe); - /* AUX_PLL_FRAC */ - /* 0x8.9504318 * 28,636,363.63 / 0x1e = 32000 * 256 */ - cx18_av_write4(cx, 0x110, 0x012a0863); + /* AUX_PLL Fraction = 0x176740c */ + /* xtal * 0xd.bb3a060/0x30 = 32000 * 256: 393 MHz p-pd*/ + cx18_av_write4(cx, 0x110, 0x0176740c); /* src1_ctl */ /* 0x1.0000 = 32000/32000 */ @@ -133,27 +201,34 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq) cx18_av_write4(cx, 0x904, 0x08020000); cx18_av_write4(cx, 0x90c, 0x08020000); - /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x14 */ - cx18_av_write(cx, 0x127, 0x54); + /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x30 */ + cx18_av_write(cx, 0x127, 0x70); /* AUD_COUNT = 0x1fff = 8 samples * 4 * 256 - 1 */ cx18_av_write4(cx, 0x12c, 0x11201fff); /* - * EN_AV_LOCK = 1 + * EN_AV_LOCK = 0 * VID_COUNT = 0x0d2ef8 = 107999.000 * 8 = * ((8 samples/32,000) * (13,500,000 * 8) * 4 - 1) * 8 */ - cx18_av_write4(cx, 0x128, 0xa10d2ef8); + cx18_av_write4(cx, 0x128, 0xa00d2ef8); break; case 44100: - /* VID_PLL and AUX_PLL */ - cx18_av_write4(cx, 0x108, 0x1809040f); + /* + * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 + * AUX_PLL Integer = 0x0e, AUX PLL Post Divider = 0x24 + */ + cx18_av_write4(cx, 0x108, 0x240e040f); - /* AUX_PLL_FRAC */ - /* 0x9.7635e74 * 28,636,363.63 / 0x18 = 44100 * 256 */ - cx18_av_write4(cx, 0x110, 0x00ec6bce); + /* VID_PLL Fraction = 0x2be2fe */ + /* xtal * 0xf.15f17f0/4 = 108 MHz: 432 MHz pre-postdiv*/ + cx18_av_write4(cx, 0x10c, 0x002be2fe); + + /* AUX_PLL Fraction = 0x062a1f2 */ + /* xtal * 0xe.3150f90/0x24 = 44100 * 256: 406 MHz p-pd*/ + cx18_av_write4(cx, 0x110, 0x0062a1f2); /* src1_ctl */ /* 0x1.60cd = 44100/32000 */ @@ -165,24 +240,34 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq) cx18_av_write4(cx, 0x904, 0x08017385); cx18_av_write4(cx, 0x90c, 0x08017385); + /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x24 */ + cx18_av_write(cx, 0x127, 0x64); + /* AUD_COUNT = 0x61ff = 49 samples * 2 * 256 - 1 */ cx18_av_write4(cx, 0x12c, 0x112061ff); /* - * EN_AV_LOCK = 1 + * EN_AV_LOCK = 0 * VID_COUNT = 0x1d4bf8 = 239999.000 * 8 = * ((49 samples/44,100) * (13,500,000 * 8) * 2 - 1) * 8 */ - cx18_av_write4(cx, 0x128, 0xa11d4bf8); + cx18_av_write4(cx, 0x128, 0xa01d4bf8); break; case 48000: - /* VID_PLL and AUX_PLL */ - cx18_av_write4(cx, 0x108, 0x180a040f); + /* + * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 + * AUX_PLL Integer = 0x0d, AUX PLL Post Divider = 0x20 + */ + cx18_av_write4(cx, 0x108, 0x200d040f); + + /* VID_PLL Fraction = 0x2be2fe */ + /* xtal * 0xf.15f17f0/4 = 108 MHz: 432 MHz pre-postdiv*/ + cx18_av_write4(cx, 0x10c, 0x002be2fe); - /* AUX_PLL_FRAC */ - /* 0xa.4c6b6ea * 28,636,363.63 / 0x18 = 48000 * 256 */ - cx18_av_write4(cx, 0x110, 0x0098d6dd); + /* AUX_PLL Fraction = 0x176740c */ + /* xtal * 0xd.bb3a060/0x20 = 48000 * 256: 393 MHz p-pd*/ + cx18_av_write4(cx, 0x110, 0x0176740c); /* src1_ctl */ /* 0x1.8000 = 48000/32000 */ @@ -194,15 +279,18 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq) cx18_av_write4(cx, 0x904, 0x08015555); cx18_av_write4(cx, 0x90c, 0x08015555); + /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x20 */ + cx18_av_write(cx, 0x127, 0x60); + /* AUD_COUNT = 0x3fff = 4 samples * 16 * 256 - 1 */ cx18_av_write4(cx, 0x12c, 0x11203fff); /* - * EN_AV_LOCK = 1 + * EN_AV_LOCK = 0 * VID_COUNT = 0x1193f8 = 143999.000 * 8 = * ((4 samples/48,000) * (13,500,000 * 8) * 16 - 1) * 8 */ - cx18_av_write4(cx, 0x128, 0xa11193f8); + cx18_av_write4(cx, 0x128, 0xa01193f8); break; } } @@ -215,12 +303,15 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq) void cx18_av_audio_set_path(struct cx18 *cx) { struct cx18_av_state *state = &cx->av_state; + u8 v; /* stop microcontroller */ - cx18_av_and_or(cx, 0x803, ~0x10, 0); + v = cx18_av_read(cx, 0x803) & ~0x10; + cx18_av_write_expect(cx, 0x803, v, v, 0x1f); /* assert soft reset */ - cx18_av_and_or(cx, 0x810, ~0x1, 0x01); + v = cx18_av_read(cx, 0x810) | 0x01; + cx18_av_write_expect(cx, 0x810, v, v, 0x0f); /* Mute everything to prevent the PFFT! */ cx18_av_write(cx, 0x8d3, 0x1f); @@ -240,12 +331,14 @@ void cx18_av_audio_set_path(struct cx18 *cx) set_audclk_freq(cx, state->audclk_freq); /* deassert soft reset */ - cx18_av_and_or(cx, 0x810, ~0x1, 0x00); + v = cx18_av_read(cx, 0x810) & ~0x01; + cx18_av_write_expect(cx, 0x810, v, v, 0x0f); if (state->aud_input > CX18_AV_AUDIO_SERIAL2) { /* When the microcontroller detects the * audio format, it will unmute the lines */ - cx18_av_and_or(cx, 0x803, ~0x10, 0x10); + v = cx18_av_read(cx, 0x803) | 0x10; + cx18_av_write_expect(cx, 0x803, v, v, 0x1f); } } @@ -347,19 +440,23 @@ static int get_mute(struct cx18 *cx) static void set_mute(struct cx18 *cx, int mute) { struct cx18_av_state *state = &cx->av_state; + u8 v; if (state->aud_input > CX18_AV_AUDIO_SERIAL2) { /* Must turn off microcontroller in order to mute sound. * Not sure if this is the best method, but it does work. * If the microcontroller is running, then it will undo any * changes to the mute register. */ + v = cx18_av_read(cx, 0x803); if (mute) { /* disable microcontroller */ - cx18_av_and_or(cx, 0x803, ~0x10, 0x00); + v &= ~0x10; + cx18_av_write_expect(cx, 0x803, v, v, 0x1f); cx18_av_write(cx, 0x8d3, 0x1f); } else { /* enable microcontroller */ - cx18_av_and_or(cx, 0x803, ~0x10, 0x10); + v |= 0x10; + cx18_av_write_expect(cx, 0x803, v, v, 0x1f); } } else { /* SRC1_MUTE_EN */ @@ -375,16 +472,26 @@ int cx18_av_audio(struct cx18 *cx, unsigned int cmd, void *arg) switch (cmd) { case VIDIOC_INT_AUDIO_CLOCK_FREQ: + { + u8 v; if (state->aud_input > CX18_AV_AUDIO_SERIAL2) { - cx18_av_and_or(cx, 0x803, ~0x10, 0); + v = cx18_av_read(cx, 0x803) & ~0x10; + cx18_av_write_expect(cx, 0x803, v, v, 0x1f); cx18_av_write(cx, 0x8d3, 0x1f); } - cx18_av_and_or(cx, 0x810, ~0x1, 1); + v = cx18_av_read(cx, 0x810) | 0x1; + cx18_av_write_expect(cx, 0x810, v, v, 0x0f); + retval = set_audclk_freq(cx, *(u32 *)arg); - cx18_av_and_or(cx, 0x810, ~0x1, 0); - if (state->aud_input > CX18_AV_AUDIO_SERIAL2) - cx18_av_and_or(cx, 0x803, ~0x10, 0x10); + + v = cx18_av_read(cx, 0x810) & ~0x1; + cx18_av_write_expect(cx, 0x810, v, v, 0x0f); + if (state->aud_input > CX18_AV_AUDIO_SERIAL2) { + v = cx18_av_read(cx, 0x803) | 0x10; + cx18_av_write_expect(cx, 0x803, v, v, 0x1f); + } return retval; + } case VIDIOC_G_CTRL: switch (ctrl->id) { diff --git a/drivers/media/video/cx18/cx18-av-core.c b/drivers/media/video/cx18/cx18-av-core.c index 73f5141a42d1..0b1c84b4ddd6 100644 --- a/drivers/media/video/cx18/cx18-av-core.c +++ b/drivers/media/video/cx18/cx18-av-core.c @@ -4,6 +4,7 @@ * Derived from cx25840-core.c * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -36,12 +37,31 @@ int cx18_av_write(struct cx18 *cx, u16 addr, u8 value) return 0; } +int cx18_av_write_expect(struct cx18 *cx, u16 addr, u8 value, u8 eval, u8 mask) +{ + u32 reg = 0xc40000 + (addr & ~3); + int shift = (addr & 3) * 8; + u32 x = cx18_read_reg(cx, reg); + + x = (x & ~((u32)0xff << shift)) | ((u32)value << shift); + cx18_write_reg_expect(cx, x, reg, + ((u32)eval << shift), ((u32)mask << shift)); + return 0; +} + int cx18_av_write4(struct cx18 *cx, u16 addr, u32 value) { cx18_write_reg(cx, value, 0xc40000 + addr); return 0; } +int +cx18_av_write4_expect(struct cx18 *cx, u16 addr, u32 value, u32 eval, u32 mask) +{ + cx18_write_reg_expect(cx, value, 0xc40000 + addr, eval, mask); + return 0; +} + int cx18_av_write4_noretry(struct cx18 *cx, u16 addr, u32 value) { cx18_write_reg_noretry(cx, value, 0xc40000 + addr); @@ -61,11 +81,6 @@ u32 cx18_av_read4(struct cx18 *cx, u16 addr) return cx18_read_reg(cx, 0xc40000 + addr); } -u32 cx18_av_read4_noretry(struct cx18 *cx, u16 addr) -{ - return cx18_read_reg_noretry(cx, 0xc40000 + addr); -} - int cx18_av_and_or(struct cx18 *cx, u16 addr, unsigned and_mask, u8 or_value) { @@ -98,14 +113,16 @@ static void cx18_av_initialize(struct cx18 *cx) cx18_av_loadfw(cx); /* Stop 8051 code execution */ - cx18_av_write4(cx, CXADEC_DL_CTL, 0x03000000); + cx18_av_write4_expect(cx, CXADEC_DL_CTL, 0x03000000, + 0x03000000, 0x13000000); /* initallize the PLL by toggling sleep bit */ v = cx18_av_read4(cx, CXADEC_HOST_REG1); - /* enable sleep mode */ - cx18_av_write4(cx, CXADEC_HOST_REG1, v | 1); + /* enable sleep mode - register appears to be read only... */ + cx18_av_write4_expect(cx, CXADEC_HOST_REG1, v | 1, v, 0xfffe); /* disable sleep mode */ - cx18_av_write4(cx, CXADEC_HOST_REG1, v & 0xfffe); + cx18_av_write4_expect(cx, CXADEC_HOST_REG1, v & 0xfffe, + v & 0xfffe, 0xffff); /* initialize DLLs */ v = cx18_av_read4(cx, CXADEC_DLL1_DIAG_CTRL) & 0xE1FFFEFF; @@ -125,9 +142,10 @@ static void cx18_av_initialize(struct cx18 *cx) v = cx18_av_read4(cx, CXADEC_AFE_DIAG_CTRL3) | 1; /* enable TUNE_FIL_RST */ - cx18_av_write4(cx, CXADEC_AFE_DIAG_CTRL3, v); + cx18_av_write4_expect(cx, CXADEC_AFE_DIAG_CTRL3, v, v, 0x03009F0F); /* disable TUNE_FIL_RST */ - cx18_av_write4(cx, CXADEC_AFE_DIAG_CTRL3, v & 0xFFFFFFFE); + cx18_av_write4_expect(cx, CXADEC_AFE_DIAG_CTRL3, + v & 0xFFFFFFFE, v & 0xFFFFFFFE, 0x03009F0F); /* enable 656 output */ cx18_av_and_or4(cx, CXADEC_PIN_CTRL1, ~0, 0x040C00); @@ -251,10 +269,9 @@ void cx18_av_std_setup(struct cx18 *cx) pll_int, pll_frac, pll_post); if (pll_post) { - int fin, fsc; - int pll = 28636363L * ((((u64)pll_int) << 25) + pll_frac); + int fin, fsc, pll; - pll >>= 25; + pll = (28636360L * ((((u64)pll_int) << 25) + pll_frac)) >> 25; pll /= pll_post; CX18_DEBUG_INFO("PLL = %d.%06d MHz\n", pll / 1000000, pll % 1000000); @@ -324,6 +341,7 @@ static void input_change(struct cx18 *cx) { struct cx18_av_state *state = &cx->av_state; v4l2_std_id std = state->std; + u8 v; /* Follow step 8c and 8d of section 3.16 in the cx18_av datasheet */ cx18_av_write(cx, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11); @@ -333,31 +351,34 @@ static void input_change(struct cx18 *cx) if (std & V4L2_STD_525_60) { if (std == V4L2_STD_NTSC_M_JP) { /* Japan uses EIAJ audio standard */ - cx18_av_write(cx, 0x808, 0xf7); - cx18_av_write(cx, 0x80b, 0x02); + cx18_av_write_expect(cx, 0x808, 0xf7, 0xf7, 0xff); + cx18_av_write_expect(cx, 0x80b, 0x02, 0x02, 0x3f); } else if (std == V4L2_STD_NTSC_M_KR) { /* South Korea uses A2 audio standard */ - cx18_av_write(cx, 0x808, 0xf8); - cx18_av_write(cx, 0x80b, 0x03); + cx18_av_write_expect(cx, 0x808, 0xf8, 0xf8, 0xff); + cx18_av_write_expect(cx, 0x80b, 0x03, 0x03, 0x3f); } else { /* Others use the BTSC audio standard */ - cx18_av_write(cx, 0x808, 0xf6); - cx18_av_write(cx, 0x80b, 0x01); + cx18_av_write_expect(cx, 0x808, 0xf6, 0xf6, 0xff); + cx18_av_write_expect(cx, 0x80b, 0x01, 0x01, 0x3f); } } else if (std & V4L2_STD_PAL) { /* Follow tuner change procedure for PAL */ - cx18_av_write(cx, 0x808, 0xff); - cx18_av_write(cx, 0x80b, 0x03); + cx18_av_write_expect(cx, 0x808, 0xff, 0xff, 0xff); + cx18_av_write_expect(cx, 0x80b, 0x03, 0x03, 0x3f); } else if (std & V4L2_STD_SECAM) { /* Select autodetect for SECAM */ - cx18_av_write(cx, 0x808, 0xff); - cx18_av_write(cx, 0x80b, 0x03); + cx18_av_write_expect(cx, 0x808, 0xff, 0xff, 0xff); + cx18_av_write_expect(cx, 0x80b, 0x03, 0x03, 0x3f); } - if (cx18_av_read(cx, 0x803) & 0x10) { + v = cx18_av_read(cx, 0x803); + if (v & 0x10) { /* restart audio decoder microcontroller */ - cx18_av_and_or(cx, 0x803, ~0x10, 0x00); - cx18_av_and_or(cx, 0x803, ~0x10, 0x10); + v &= ~0x10; + cx18_av_write_expect(cx, 0x803, v, v, 0x1f); + v |= 0x10; + cx18_av_write_expect(cx, 0x803, v, v, 0x1f); } } @@ -368,6 +389,7 @@ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input, u8 is_composite = (vid_input >= CX18_AV_COMPOSITE1 && vid_input <= CX18_AV_COMPOSITE8); u8 reg; + u8 v; CX18_DEBUG_INFO("decoder set video input %d, audio input %d\n", vid_input, aud_input); @@ -413,16 +435,23 @@ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input, return -EINVAL; } - cx18_av_write(cx, 0x103, reg); + cx18_av_write_expect(cx, 0x103, reg, reg, 0xf7); /* Set INPUT_MODE to Composite (0) or S-Video (1) */ cx18_av_and_or(cx, 0x401, ~0x6, is_composite ? 0 : 0x02); + /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */ - cx18_av_and_or(cx, 0x102, ~0x2, (reg & 0x80) == 0 ? 2 : 0); + v = cx18_av_read(cx, 0x102); + if (reg & 0x80) + v &= ~0x2; + else + v |= 0x2; /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */ if ((reg & 0xc0) != 0xc0 && (reg & 0x30) != 0x30) - cx18_av_and_or(cx, 0x102, ~0x4, 4); + v |= 0x4; else - cx18_av_and_or(cx, 0x102, ~0x4, 0); + v &= ~0x4; + cx18_av_write_expect(cx, 0x102, v, v, 0x17); + /*cx18_av_and_or4(cx, 0x104, ~0x001b4180, 0x00004180);*/ state->vid_input = vid_input; @@ -799,40 +828,47 @@ int cx18_av_cmd(struct cx18 *cx, unsigned int cmd, void *arg) } case VIDIOC_S_TUNER: + { + u8 v; + if (state->radio) break; + v = cx18_av_read(cx, 0x809); + v &= ~0xf; + switch (vt->audmode) { case V4L2_TUNER_MODE_MONO: /* mono -> mono stereo -> mono bilingual -> lang1 */ - cx18_av_and_or(cx, 0x809, ~0xf, 0x00); break; case V4L2_TUNER_MODE_STEREO: case V4L2_TUNER_MODE_LANG1: /* mono -> mono stereo -> stereo bilingual -> lang1 */ - cx18_av_and_or(cx, 0x809, ~0xf, 0x04); + v |= 0x4; break; case V4L2_TUNER_MODE_LANG1_LANG2: /* mono -> mono stereo -> stereo bilingual -> lang1/lang2 */ - cx18_av_and_or(cx, 0x809, ~0xf, 0x07); + v |= 0x7; break; case V4L2_TUNER_MODE_LANG2: /* mono -> mono stereo -> stereo bilingual -> lang2 */ - cx18_av_and_or(cx, 0x809, ~0xf, 0x01); + v |= 0x1; break; default: return -EINVAL; } + cx18_av_write_expect(cx, 0x809, v, v, 0xff); state->audmode = vt->audmode; break; + } case VIDIOC_G_FMT: return get_v4lfmt(cx, (struct v4l2_format *)arg); diff --git a/drivers/media/video/cx18/cx18-av-core.h b/drivers/media/video/cx18/cx18-av-core.h index b67d8df20cc6..cf68a6039091 100644 --- a/drivers/media/video/cx18/cx18-av-core.h +++ b/drivers/media/video/cx18/cx18-av-core.h @@ -4,6 +4,7 @@ * Derived from cx25840-core.h * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -302,9 +303,11 @@ struct cx18_av_state { int cx18_av_write(struct cx18 *cx, u16 addr, u8 value); int cx18_av_write4(struct cx18 *cx, u16 addr, u32 value); int cx18_av_write4_noretry(struct cx18 *cx, u16 addr, u32 value); +int cx18_av_write_expect(struct cx18 *cx, u16 addr, u8 value, u8 eval, u8 mask); +int cx18_av_write4_expect(struct cx18 *cx, u16 addr, u32 value, u32 eval, + u32 mask); u8 cx18_av_read(struct cx18 *cx, u16 addr); u32 cx18_av_read4(struct cx18 *cx, u16 addr); -u32 cx18_av_read4_noretry(struct cx18 *cx, u16 addr); int cx18_av_and_or(struct cx18 *cx, u16 addr, unsigned mask, u8 value); int cx18_av_and_or4(struct cx18 *cx, u16 addr, u32 mask, u32 value); int cx18_av_cmd(struct cx18 *cx, unsigned int cmd, void *arg); diff --git a/drivers/media/video/cx18/cx18-av-firmware.c b/drivers/media/video/cx18/cx18-av-firmware.c index 522a035b2e8f..c64fd0a05a97 100644 --- a/drivers/media/video/cx18/cx18-av-firmware.c +++ b/drivers/media/video/cx18/cx18-av-firmware.c @@ -2,6 +2,7 @@ * cx18 ADEC firmware functions * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -43,11 +44,13 @@ int cx18_av_loadfw(struct cx18 *cx) /* The firmware load often has byte errors, so allow for several retries, both at byte level and at the firmware load level. */ while (retries1 < 5) { - cx18_av_write4(cx, CXADEC_CHIP_CTRL, 0x00010000); - cx18_av_write(cx, CXADEC_STD_DET_CTL, 0xf6); + cx18_av_write4_expect(cx, CXADEC_CHIP_CTRL, 0x00010000, + 0x00008430, 0xffffffff); /* cx25843 */ + cx18_av_write_expect(cx, CXADEC_STD_DET_CTL, 0xf6, 0xf6, 0xff); - /* Reset the Mako core (Register is undocumented.) */ - cx18_av_write4(cx, 0x8100, 0x00010000); + /* Reset the Mako core, Register is alias of CXADEC_CHIP_CTRL */ + cx18_av_write4_expect(cx, 0x8100, 0x00010000, + 0x00008430, 0xffffffff); /* cx25843 */ /* Put the 8051 in reset and enable firmware upload */ cx18_av_write4_noretry(cx, CXADEC_DL_CTL, 0x0F000000); @@ -61,13 +64,12 @@ int cx18_av_loadfw(struct cx18 *cx) int retries2; int unrec_err = 0; - for (retries2 = 0; retries2 < CX18_MAX_MMIO_RETRIES; + for (retries2 = 0; retries2 < CX18_MAX_MMIO_WR_RETRIES; retries2++) { cx18_av_write4_noretry(cx, CXADEC_DL_CTL, dl_control); udelay(10); - value = cx18_av_read4_noretry(cx, - CXADEC_DL_CTL); + value = cx18_av_read4(cx, CXADEC_DL_CTL); if (value == dl_control) break; /* Check if we can correct the byte by changing @@ -78,9 +80,7 @@ int cx18_av_loadfw(struct cx18 *cx) break; } } - cx18_log_write_retries(cx, retries2, - cx->reg_mem + 0xc40000 + CXADEC_DL_CTL); - if (unrec_err || retries2 >= CX18_MAX_MMIO_RETRIES) + if (unrec_err || retries2 >= CX18_MAX_MMIO_WR_RETRIES) break; } if (i == size) @@ -93,7 +93,8 @@ int cx18_av_loadfw(struct cx18 *cx) return -EIO; } - cx18_av_write4(cx, CXADEC_DL_CTL, 0x13000000 | fw->size); + cx18_av_write4_expect(cx, CXADEC_DL_CTL, + 0x13000000 | fw->size, 0x13000000, 0x13000000); /* Output to the 416 */ cx18_av_and_or4(cx, CXADEC_PIN_CTRL1, ~0, 0x78000); @@ -118,7 +119,8 @@ int cx18_av_loadfw(struct cx18 *cx) passthrough */ cx18_av_write4(cx, CXADEC_PIN_CFG3, 0x5000B687); - cx18_av_write4(cx, CXADEC_STD_DET_CTL, 0x000000F6); + cx18_av_write4_expect(cx, CXADEC_STD_DET_CTL, 0x000000F6, 0x000000F6, + 0x3F00FFFF); /* CxDevWrReg(CXADEC_STD_DET_CTL, 0x000000FF); */ /* Set bit 0 in register 0x9CC to signify that this is MiniMe. */ @@ -136,7 +138,7 @@ int cx18_av_loadfw(struct cx18 *cx) v |= 0xFF; /* Auto by default */ v |= 0x400; /* Stereo by default */ v |= 0x14000000; - cx18_av_write4(cx, CXADEC_STD_DET_CTL, v); + cx18_av_write4_expect(cx, CXADEC_STD_DET_CTL, v, v, 0x3F00FFFF); release_firmware(fw); diff --git a/drivers/media/video/cx18/cx18-av-vbi.c b/drivers/media/video/cx18/cx18-av-vbi.c index 02fdf57bb678..1527ea4f6b06 100644 --- a/drivers/media/video/cx18/cx18-av-vbi.c +++ b/drivers/media/video/cx18/cx18-av-vbi.c @@ -141,10 +141,11 @@ int cx18_av_vbi(struct cx18 *cx, unsigned int cmd, void *arg) u8 lcr[24]; fmt = arg; - if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) + if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE && + fmt->type != V4L2_BUF_TYPE_VBI_CAPTURE) return -EINVAL; svbi = &fmt->fmt.sliced; - if (svbi->service_set == 0) { + if (fmt->type == V4L2_BUF_TYPE_VBI_CAPTURE) { /* raw VBI */ memset(svbi, 0, sizeof(*svbi)); diff --git a/drivers/media/video/cx18/cx18-cards.c b/drivers/media/video/cx18/cx18-cards.c index 5efe01ebe9db..e274043657dd 100644 --- a/drivers/media/video/cx18/cx18-cards.c +++ b/drivers/media/video/cx18/cx18-cards.c @@ -4,6 +4,7 @@ * Derived from ivtv-cards.c * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -50,7 +51,7 @@ static struct cx18_card_tuner_i2c cx18_i2c_std = { static const struct cx18_card cx18_card_hvr1600_esmt = { .type = CX18_CARD_HVR_1600_ESMT, .name = "Hauppauge HVR-1600", - .comment = "VBI is not yet supported\n", + .comment = "Raw VBI supported; Sliced VBI is not yet supported\n", .v4l2_capabilities = CX18_CAP_ENCODER, .hw_audio_ctrl = CX18_HW_CX23418, .hw_muxer = CX18_HW_CS5345, @@ -96,7 +97,7 @@ static const struct cx18_card cx18_card_hvr1600_esmt = { static const struct cx18_card cx18_card_hvr1600_samsung = { .type = CX18_CARD_HVR_1600_SAMSUNG, .name = "Hauppauge HVR-1600 (Preproduction)", - .comment = "VBI is not yet supported\n", + .comment = "Raw VBI supported; Sliced VBI is not yet supported\n", .v4l2_capabilities = CX18_CAP_ENCODER, .hw_audio_ctrl = CX18_HW_CX23418, .hw_muxer = CX18_HW_CS5345, @@ -151,7 +152,7 @@ static const struct cx18_card_pci_info cx18_pci_h900[] = { static const struct cx18_card cx18_card_h900 = { .type = CX18_CARD_COMPRO_H900, .name = "Compro VideoMate H900", - .comment = "VBI is not yet supported\n", + .comment = "Raw VBI supported; Sliced VBI is not yet supported\n", .v4l2_capabilities = CX18_CAP_ENCODER, .hw_audio_ctrl = CX18_HW_CX23418, .hw_all = CX18_HW_TUNER, @@ -248,7 +249,7 @@ static const struct cx18_card_pci_info cx18_pci_cnxt_raptor_pal[] = { static const struct cx18_card cx18_card_cnxt_raptor_pal = { .type = CX18_CARD_CNXT_RAPTOR_PAL, .name = "Conexant Raptor PAL/SECAM", - .comment = "VBI is not yet supported\n", + .comment = "Raw VBI supported; Sliced VBI is not yet supported\n", .v4l2_capabilities = CX18_CAP_ENCODER, .hw_audio_ctrl = CX18_HW_CX23418, .hw_muxer = CX18_HW_GPIO, diff --git a/drivers/media/video/cx18/cx18-cards.h b/drivers/media/video/cx18/cx18-cards.h index 32155f6e6fe4..6fa7bcb42dde 100644 --- a/drivers/media/video/cx18/cx18-cards.h +++ b/drivers/media/video/cx18/cx18-cards.h @@ -4,6 +4,7 @@ * Derived from ivtv-cards.c * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -47,8 +48,9 @@ /* V4L2 capability aliases */ #define CX18_CAP_ENCODER (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER | \ - V4L2_CAP_AUDIO | V4L2_CAP_READWRITE) -/* | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_CAPTURE) not yet */ + V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | \ + V4L2_CAP_VBI_CAPTURE) +/* | V4L2_CAP_SLICED_VBI_CAPTURE) not yet */ struct cx18_card_video_input { u8 video_type; /* video input type */ diff --git a/drivers/media/video/cx18/cx18-controls.c b/drivers/media/video/cx18/cx18-controls.c index f46c7e5ed747..17edf305d649 100644 --- a/drivers/media/video/cx18/cx18-controls.c +++ b/drivers/media/video/cx18/cx18-controls.c @@ -259,6 +259,7 @@ int cx18_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) return err; } if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) { + struct cx18_api_func_private priv; struct cx2341x_mpeg_params p = cx->params; int err = cx2341x_ext_ctrls(&p, atomic_read(&cx->ana_capturing), c, VIDIOC_S_EXT_CTRLS); @@ -278,7 +279,9 @@ int cx18_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) fmt.fmt.pix.height = cx->params.height; cx18_av_cmd(cx, VIDIOC_S_FMT, &fmt); } - err = cx2341x_update(cx, cx18_api_func, &cx->params, &p); + priv.cx = cx; + priv.s = &cx->streams[id->type]; + err = cx2341x_update(&priv, cx18_api_func, &cx->params, &p); if (!err && cx->params.stream_vbi_fmt != p.stream_vbi_fmt) err = cx18_setup_vbi_fmt(cx, p.stream_vbi_fmt); cx->params = p; diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c index 7874d9790a51..f50cf2167adc 100644 --- a/drivers/media/video/cx18/cx18-driver.c +++ b/drivers/media/video/cx18/cx18-driver.c @@ -75,48 +75,76 @@ static int radio[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; -static int mmio_ndelay[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1 }; static unsigned cardtype_c = 1; static unsigned tuner_c = 1; static unsigned radio_c = 1; -static unsigned mmio_ndelay_c = 1; static char pal[] = "--"; static char secam[] = "--"; static char ntsc[] = "-"; /* Buffers */ -static int enc_mpg_buffers = CX18_DEFAULT_ENC_MPG_BUFFERS; static int enc_ts_buffers = CX18_DEFAULT_ENC_TS_BUFFERS; +static int enc_mpg_buffers = CX18_DEFAULT_ENC_MPG_BUFFERS; +static int enc_idx_buffers = CX18_DEFAULT_ENC_IDX_BUFFERS; static int enc_yuv_buffers = CX18_DEFAULT_ENC_YUV_BUFFERS; static int enc_vbi_buffers = CX18_DEFAULT_ENC_VBI_BUFFERS; static int enc_pcm_buffers = CX18_DEFAULT_ENC_PCM_BUFFERS; +static int enc_ts_bufsize = CX18_DEFAULT_ENC_TS_BUFSIZE; +static int enc_mpg_bufsize = CX18_DEFAULT_ENC_MPG_BUFSIZE; +static int enc_idx_bufsize = CX18_DEFAULT_ENC_IDX_BUFSIZE; +static int enc_yuv_bufsize = CX18_DEFAULT_ENC_YUV_BUFSIZE; +/* VBI bufsize based on standards supported by card tuner for now */ +static int enc_pcm_bufsize = CX18_DEFAULT_ENC_PCM_BUFSIZE; + +static int enc_ts_bufs = -1; +static int enc_mpg_bufs = -1; +static int enc_idx_bufs = -1; +static int enc_yuv_bufs = -1; +static int enc_vbi_bufs = -1; +static int enc_pcm_bufs = -1; + + static int cx18_pci_latency = 1; -int cx18_retry_mmio = 1; +static int mmio_ndelay; +static int retry_mmio = 1; + int cx18_debug; module_param_array(tuner, int, &tuner_c, 0644); module_param_array(radio, bool, &radio_c, 0644); module_param_array(cardtype, int, &cardtype_c, 0644); -module_param_array(mmio_ndelay, int, &mmio_ndelay_c, 0644); module_param_string(pal, pal, sizeof(pal), 0644); module_param_string(secam, secam, sizeof(secam), 0644); module_param_string(ntsc, ntsc, sizeof(ntsc), 0644); module_param_named(debug, cx18_debug, int, 0644); -module_param_named(retry_mmio, cx18_retry_mmio, int, 0644); +module_param(mmio_ndelay, int, 0644); +module_param(retry_mmio, int, 0644); module_param(cx18_pci_latency, int, 0644); module_param(cx18_first_minor, int, 0644); -module_param(enc_mpg_buffers, int, 0644); module_param(enc_ts_buffers, int, 0644); +module_param(enc_mpg_buffers, int, 0644); +module_param(enc_idx_buffers, int, 0644); module_param(enc_yuv_buffers, int, 0644); module_param(enc_vbi_buffers, int, 0644); module_param(enc_pcm_buffers, int, 0644); +module_param(enc_ts_bufsize, int, 0644); +module_param(enc_mpg_bufsize, int, 0644); +module_param(enc_idx_bufsize, int, 0644); +module_param(enc_yuv_bufsize, int, 0644); +/* VBI bufsize based on standards supported by card tuner for now */ +module_param(enc_pcm_bufsize, int, 0644); + +module_param(enc_ts_bufs, int, 0644); +module_param(enc_mpg_bufs, int, 0644); +module_param(enc_idx_bufs, int, 0644); +module_param(enc_yuv_bufs, int, 0644); +module_param(enc_vbi_bufs, int, 0644); +module_param(enc_pcm_bufs, int, 0644); + MODULE_PARM_DESC(tuner, "Tuner type selection,\n" "\t\t\tsee tuner.h for values"); MODULE_PARM_DESC(radio, @@ -152,28 +180,62 @@ MODULE_PARM_DESC(cx18_pci_latency, "Change the PCI latency to 64 if lower: 0 = No, 1 = Yes,\n" "\t\t\tDefault: Yes"); MODULE_PARM_DESC(retry_mmio, - "Check and retry memory mapped IO accesses\n" - "\t\t\tDefault: 1 [Yes]"); + "(Deprecated) MMIO writes are now always checked and retried\n" + "\t\t\tEffectively: 1 [Yes]"); MODULE_PARM_DESC(mmio_ndelay, - "Delay (ns) for each CX23418 memory mapped IO access.\n" - "\t\t\tTry larger values that are close to a multiple of the\n" - "\t\t\tPCI clock period, 30.3 ns, if your card doesn't work.\n" - "\t\t\tDefault: " __stringify(CX18_DEFAULT_MMIO_NDELAY)); -MODULE_PARM_DESC(enc_mpg_buffers, - "Encoder MPG Buffers (in MB)\n" - "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_MPG_BUFFERS)); + "(Deprecated) MMIO accesses are now never purposely delayed\n" + "\t\t\tEffectively: 0 ns"); MODULE_PARM_DESC(enc_ts_buffers, - "Encoder TS Buffers (in MB)\n" + "Encoder TS buffer memory (MB). (enc_ts_bufs can override)\n" "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_TS_BUFFERS)); +MODULE_PARM_DESC(enc_ts_bufsize, + "Size of an encoder TS buffer (kB)\n" + "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_TS_BUFSIZE)); +MODULE_PARM_DESC(enc_ts_bufs, + "Number of encoder TS buffers\n" + "\t\t\tDefault is computed from other enc_ts_* parameters"); +MODULE_PARM_DESC(enc_mpg_buffers, + "Encoder MPG buffer memory (MB). (enc_mpg_bufs can override)\n" + "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_MPG_BUFFERS)); +MODULE_PARM_DESC(enc_mpg_bufsize, + "Size of an encoder MPG buffer (kB)\n" + "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_MPG_BUFSIZE)); +MODULE_PARM_DESC(enc_mpg_bufs, + "Number of encoder MPG buffers\n" + "\t\t\tDefault is computed from other enc_mpg_* parameters"); +MODULE_PARM_DESC(enc_idx_buffers, + "Encoder IDX buffer memory (MB). (enc_idx_bufs can override)\n" + "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_IDX_BUFFERS)); +MODULE_PARM_DESC(enc_idx_bufsize, + "Size of an encoder IDX buffer (kB)\n" + "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_IDX_BUFSIZE)); +MODULE_PARM_DESC(enc_idx_bufs, + "Number of encoder IDX buffers\n" + "\t\t\tDefault is computed from other enc_idx_* parameters"); MODULE_PARM_DESC(enc_yuv_buffers, - "Encoder YUV Buffers (in MB)\n" + "Encoder YUV buffer memory (MB). (enc_yuv_bufs can override)\n" "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_YUV_BUFFERS)); +MODULE_PARM_DESC(enc_yuv_bufsize, + "Size of an encoder YUV buffer (kB)\n" + "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_YUV_BUFSIZE)); +MODULE_PARM_DESC(enc_yuv_bufs, + "Number of encoder YUV buffers\n" + "\t\t\tDefault is computed from other enc_yuv_* parameters"); MODULE_PARM_DESC(enc_vbi_buffers, - "Encoder VBI Buffers (in MB)\n" + "Encoder VBI buffer memory (MB). (enc_vbi_bufs can override)\n" "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_VBI_BUFFERS)); +MODULE_PARM_DESC(enc_vbi_bufs, + "Number of encoder VBI buffers\n" + "\t\t\tDefault is computed from enc_vbi_buffers & tuner std"); MODULE_PARM_DESC(enc_pcm_buffers, - "Encoder PCM buffers (in MB)\n" + "Encoder PCM buffer memory (MB). (enc_pcm_bufs can override)\n" "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_PCM_BUFFERS)); +MODULE_PARM_DESC(enc_pcm_bufsize, + "Size of an encoder PCM buffer (kB)\n" + "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_PCM_BUFSIZE)); +MODULE_PARM_DESC(enc_pcm_bufs, + "Number of encoder PCM buffers\n" + "\t\t\tDefault is computed from other enc_pcm_* parameters"); MODULE_PARM_DESC(cx18_first_minor, "Set kernel number assigned to first card"); @@ -187,7 +249,7 @@ MODULE_VERSION(CX18_VERSION); /* Generic utility functions */ int cx18_msleep_timeout(unsigned int msecs, int intr) { - int timeout = msecs_to_jiffies(msecs); + long int timeout = msecs_to_jiffies(msecs); int sig; do { @@ -366,20 +428,69 @@ static void cx18_process_options(struct cx18 *cx) { int i, j; - cx->options.megabytes[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_buffers; cx->options.megabytes[CX18_ENC_STREAM_TYPE_TS] = enc_ts_buffers; + cx->options.megabytes[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_buffers; + cx->options.megabytes[CX18_ENC_STREAM_TYPE_IDX] = enc_idx_buffers; cx->options.megabytes[CX18_ENC_STREAM_TYPE_YUV] = enc_yuv_buffers; cx->options.megabytes[CX18_ENC_STREAM_TYPE_VBI] = enc_vbi_buffers; cx->options.megabytes[CX18_ENC_STREAM_TYPE_PCM] = enc_pcm_buffers; + cx->options.megabytes[CX18_ENC_STREAM_TYPE_RAD] = 0; /* control only */ + + cx->stream_buffers[CX18_ENC_STREAM_TYPE_TS] = enc_ts_bufs; + cx->stream_buffers[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_bufs; + cx->stream_buffers[CX18_ENC_STREAM_TYPE_IDX] = enc_idx_bufs; + cx->stream_buffers[CX18_ENC_STREAM_TYPE_YUV] = enc_yuv_bufs; + cx->stream_buffers[CX18_ENC_STREAM_TYPE_VBI] = enc_vbi_bufs; + cx->stream_buffers[CX18_ENC_STREAM_TYPE_PCM] = enc_pcm_bufs; + cx->stream_buffers[CX18_ENC_STREAM_TYPE_RAD] = 0; /* control, no data */ + + cx->stream_buf_size[CX18_ENC_STREAM_TYPE_TS] = enc_ts_bufsize; + cx->stream_buf_size[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_bufsize; + cx->stream_buf_size[CX18_ENC_STREAM_TYPE_IDX] = enc_idx_bufsize; + cx->stream_buf_size[CX18_ENC_STREAM_TYPE_YUV] = enc_yuv_bufsize; + cx->stream_buf_size[CX18_ENC_STREAM_TYPE_VBI] = 0; /* computed later */ + cx->stream_buf_size[CX18_ENC_STREAM_TYPE_PCM] = enc_pcm_bufsize; + cx->stream_buf_size[CX18_ENC_STREAM_TYPE_RAD] = 0; /* control no data */ + + /* Except for VBI ensure stream_buffers & stream_buf_size are valid */ + for (i = 0; i < CX18_MAX_STREAMS; i++) { + /* User said to use 0 buffers */ + if (cx->stream_buffers[i] == 0) { + cx->options.megabytes[i] = 0; + cx->stream_buf_size[i] = 0; + continue; + } + /* User said to use 0 MB total */ + if (cx->options.megabytes[i] <= 0) { + cx->options.megabytes[i] = 0; + cx->stream_buffers[i] = 0; + cx->stream_buf_size[i] = 0; + continue; + } + /* VBI is computed later or user said buffer has size 0 */ + if (cx->stream_buf_size[i] <= 0) { + if (i != CX18_ENC_STREAM_TYPE_VBI) { + cx->options.megabytes[i] = 0; + cx->stream_buffers[i] = 0; + cx->stream_buf_size[i] = 0; + } + continue; + } + if (cx->stream_buffers[i] < 0) { + cx->stream_buffers[i] = cx->options.megabytes[i] * 1024 + / cx->stream_buf_size[i]; + } else { + /* N.B. This might round down to 0 */ + cx->options.megabytes[i] = + cx->stream_buffers[i] * cx->stream_buf_size[i] / 1024; + } + cx->stream_buf_size[i] *= 1024; /* convert from kB to bytes */ + } + cx->options.cardtype = cardtype[cx->num]; cx->options.tuner = tuner[cx->num]; cx->options.radio = radio[cx->num]; - if (mmio_ndelay[cx->num] < 0) - cx->options.mmio_ndelay = CX18_DEFAULT_MMIO_NDELAY; - else - cx->options.mmio_ndelay = mmio_ndelay[cx->num]; - cx->std = cx18_parse_std(cx); if (cx->options.cardtype == -1) { CX18_INFO("Ignore card\n"); @@ -440,22 +551,30 @@ done: */ static int __devinit cx18_init_struct1(struct cx18 *cx) { + int i; + cx->base_addr = pci_resource_start(cx->dev, 0); mutex_init(&cx->serialize_lock); mutex_init(&cx->i2c_bus_lock[0]); mutex_init(&cx->i2c_bus_lock[1]); mutex_init(&cx->gpio_lock); + mutex_init(&cx->epu2apu_mb_lock); + mutex_init(&cx->epu2cpu_mb_lock); spin_lock_init(&cx->lock); cx->work_queue = create_singlethread_workqueue(cx->name); if (cx->work_queue == NULL) { - CX18_ERR("Could not create work queue\n"); - return -1; + CX18_ERR("Unable to create work hander thread\n"); + return -ENOMEM; } - INIT_WORK(&cx->work, cx18_work_handler); + for (i = 0; i < CX18_MAX_EPU_WORK_ORDERS; i++) { + cx->epu_work_order[i].cx = cx; + cx->epu_work_order[i].str = cx->epu_debug_str; + INIT_WORK(&cx->epu_work_order[i].work, cx18_epu_work_handler); + } /* start counting open_id at 1 */ cx->open_id = 1; @@ -472,20 +591,55 @@ static int __devinit cx18_init_struct1(struct cx18 *cx) init_waitqueue_head(&cx->cap_w); init_waitqueue_head(&cx->mb_apu_waitq); init_waitqueue_head(&cx->mb_cpu_waitq); - init_waitqueue_head(&cx->mb_epu_waitq); - init_waitqueue_head(&cx->mb_hpu_waitq); init_waitqueue_head(&cx->dma_waitq); /* VBI */ - cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE; + cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE; cx->vbi.sliced_in = &cx->vbi.in.fmt.sliced; - cx->vbi.raw_size = 1456; - cx->vbi.raw_decoder_line_size = 1456; - cx->vbi.raw_decoder_sav_odd_field = 0x20; - cx->vbi.raw_decoder_sav_even_field = 0x60; - cx->vbi.sliced_decoder_line_size = 272; - cx->vbi.sliced_decoder_sav_odd_field = 0xB0; - cx->vbi.sliced_decoder_sav_even_field = 0xF0; + + /* + * The VBI line sizes depend on the pixel clock and the horiz rate + * + * (1/Fh)*(2*Fp) = Samples/line + * = 4 bytes EAV + Anc data in hblank + 4 bytes SAV + active samples + * + * Sliced VBI is sent as ancillary data during horizontal blanking + * Raw VBI is sent as active video samples during vertcal blanking + * + * We use a BT.656 pxiel clock of 13.5 MHz and a BT.656 active line + * length of 720 pixels @ 4:2:2 sampling. Thus... + * + * For systems that use a 15.734 kHz horizontal rate, such as + * NTSC-M, PAL-M, PAL-60, and other 60 Hz/525 line systems, we have: + * + * (1/15.734 kHz) * 2 * 13.5 MHz = 1716 samples/line = + * 4 bytes SAV + 268 bytes anc data + 4 bytes SAV + 1440 active samples + * + * For systems that use a 15.625 kHz horizontal rate, such as + * PAL-B/G/H, PAL-I, SECAM-L and other 50 Hz/625 line systems, we have: + * + * (1/15.625 kHz) * 2 * 13.5 MHz = 1728 samples/line = + * 4 bytes SAV + 280 bytes anc data + 4 bytes SAV + 1440 active samples + * + */ + + /* FIXME: init these based on tuner std & modify when std changes */ + /* CX18-AV-Core number of VBI samples output per horizontal line */ + cx->vbi.raw_decoder_line_size = 1444; /* 4 byte SAV + 2 * 720 */ + cx->vbi.sliced_decoder_line_size = 272; /* 60 Hz: 268+4, 50 Hz: 280+4 */ + + /* CX18-AV-Core VBI samples/line possibly rounded up */ + cx->vbi.raw_size = 1444; /* Real max size is 1444 */ + cx->vbi.sliced_size = 284; /* Real max size is 284 */ + + /* + * CX18-AV-Core SAV/EAV RP codes in VIP 1.x mode + * Task Field VerticalBlank HorizontalBlank 0 0 0 0 + */ + cx->vbi.raw_decoder_sav_odd_field = 0x20; /* V */ + cx->vbi.raw_decoder_sav_even_field = 0x60; /* FV */ + cx->vbi.sliced_decoder_sav_odd_field = 0xB0; /* T VH - actually EAV */ + cx->vbi.sliced_decoder_sav_even_field = 0xF0; /* TFVH - actually EAV */ return 0; } @@ -518,6 +672,7 @@ static void __devinit cx18_init_struct2(struct cx18 *cx) cx->av_state.aud_input = CX18_AV_AUDIO8; cx->av_state.audclk_freq = 48000; cx->av_state.audmode = V4L2_TUNER_MODE_LANG1; + /* FIXME - 8 is NTSC value, investigate */ cx->av_state.vbi_line_offset = 8; } @@ -662,12 +817,9 @@ static int __devinit cx18_probe(struct pci_dev *dev, /* PCI Device Setup */ retval = cx18_setup_pci(cx, dev, pci_id); - if (retval != 0) { - if (retval == -EIO) - goto free_workqueue; - else if (retval == -ENXIO) - goto free_mem; - } + if (retval != 0) + goto free_workqueue; + /* save cx in the pci struct for later use */ pci_set_drvdata(dev, cx); @@ -726,6 +878,7 @@ static int __devinit cx18_probe(struct pci_dev *dev, goto free_i2c; } cx18_init_memory(cx); + cx18_init_scb(cx); /* Register IRQ */ retval = request_irq(cx->dev->irq, cx18_irq_handler, @@ -739,8 +892,6 @@ static int __devinit cx18_probe(struct pci_dev *dev, cx->std = V4L2_STD_NTSC_M; if (cx->options.tuner == -1) { - int i; - for (i = 0; i < CX18_CARD_MAX_TUNERS; i++) { if ((cx->std & cx->card->tuners[i].std) == 0) continue; @@ -777,13 +928,23 @@ static int __devinit cx18_probe(struct pci_dev *dev, } cx->params.video_gop_size = cx->is_60hz ? 15 : 12; - cx->stream_buf_size[CX18_ENC_STREAM_TYPE_MPG] = 0x08000; - cx->stream_buf_size[CX18_ENC_STREAM_TYPE_TS] = 0x08000; - cx->stream_buf_size[CX18_ENC_STREAM_TYPE_PCM] = 0x01200; - cx->stream_buf_size[CX18_ENC_STREAM_TYPE_YUV] = 0x20000; + /* + * FIXME: setting the buffer size based on the tuner standard is + * suboptimal, as the CVBS and SVideo inputs could use a different std + * and the buffer could end up being too small in that case. + */ vbi_buf_size = cx->vbi.raw_size * (cx->is_60hz ? 24 : 36) / 2; cx->stream_buf_size[CX18_ENC_STREAM_TYPE_VBI] = vbi_buf_size; + if (cx->stream_buffers[CX18_ENC_STREAM_TYPE_VBI] < 0) + cx->stream_buffers[CX18_ENC_STREAM_TYPE_VBI] = + cx->options.megabytes[CX18_ENC_STREAM_TYPE_VBI] * 1024 * 1024 + / vbi_buf_size; + else + cx->options.megabytes[CX18_ENC_STREAM_TYPE_VBI] = + cx->stream_buffers[CX18_ENC_STREAM_TYPE_VBI] * vbi_buf_size + / (1024 * 1024); + if (cx->options.radio > 0) cx->v4l2_cap |= V4L2_CAP_RADIO; @@ -844,7 +1005,6 @@ err: if (retval == 0) retval = -ENODEV; CX18_ERR("Error %d on initialization\n", retval); - cx18_log_statistics(cx); i = cx->num; spin_lock(&cx18_cards_lock); @@ -923,6 +1083,13 @@ int cx18_init_on_first_open(struct cx18 *cx) return 0; } +static void cx18_cancel_epu_work_orders(struct cx18 *cx) +{ + int i; + for (i = 0; i < CX18_MAX_EPU_WORK_ORDERS; i++) + cancel_work_sync(&cx->epu_work_order[i].work); +} + static void cx18_remove(struct pci_dev *pci_dev) { struct cx18 *cx = pci_get_drvdata(pci_dev); @@ -940,7 +1107,8 @@ static void cx18_remove(struct pci_dev *pci_dev) cx18_halt_firmware(cx); - flush_workqueue(cx->work_queue); + cx18_cancel_epu_work_orders(cx); + destroy_workqueue(cx->work_queue); cx18_streams_cleanup(cx, 1); @@ -955,7 +1123,6 @@ static void cx18_remove(struct pci_dev *pci_dev) pci_disable_device(cx->dev); - cx18_log_statistics(cx); CX18_INFO("Removed %s, card #%d\n", cx->card_name, cx->num); } @@ -1004,6 +1171,7 @@ static void module_cleanup(void) continue; kfree(cx18_cards[i]); } + } module_init(module_start); diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h index bbdd5f25041d..0d2edebc39b4 100644 --- a/drivers/media/video/cx18/cx18-driver.h +++ b/drivers/media/video/cx18/cx18-driver.h @@ -4,6 +4,7 @@ * Derived from ivtv-driver.h * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -64,9 +65,6 @@ # error "This driver requires kernel PCI support." #endif -/* Default delay to throttle mmio access to the CX23418 */ -#define CX18_DEFAULT_MMIO_NDELAY 0 /* 0 ns = 0 PCI clock(s) / 33 MHz */ - #define CX18_MEM_OFFSET 0x00000000 #define CX18_MEM_SIZE 0x04000000 #define CX18_REG_OFFSET 0x02000000 @@ -117,6 +115,17 @@ #define CX18_DEFAULT_ENC_VBI_BUFFERS 1 #define CX18_DEFAULT_ENC_PCM_BUFFERS 1 +/* Maximum firmware DMA buffers per stream */ +#define CX18_MAX_FW_MDLS_PER_STREAM 63 + +/* DMA buffer, default size in kB allocated */ +#define CX18_DEFAULT_ENC_TS_BUFSIZE 32 +#define CX18_DEFAULT_ENC_MPG_BUFSIZE 32 +#define CX18_DEFAULT_ENC_IDX_BUFSIZE 32 +#define CX18_DEFAULT_ENC_YUV_BUFSIZE 128 +/* Default VBI bufsize based on standards supported by card tuner for now */ +#define CX18_DEFAULT_ENC_PCM_BUFSIZE 4 + /* i2c stuff */ #define I2C_CLIENTS_MAX 16 @@ -176,7 +185,6 @@ #define CX18_MAX_PGM_INDEX (400) -extern int cx18_retry_mmio; /* enable check & retry of mmio accesses */ extern int cx18_debug; @@ -185,7 +193,6 @@ struct cx18_options { int cardtype; /* force card type on load */ int tuner; /* set tuner on load */ int radio; /* enable/disable radio */ - unsigned long mmio_ndelay; /* delay in ns after every PCI mmio access */ }; /* per-buffer bit flags */ @@ -203,11 +210,8 @@ struct cx18_options { #define CX18_F_I_EOS 4 /* End of encoder stream */ #define CX18_F_I_RADIO_USER 5 /* radio tuner is selected */ #define CX18_F_I_ENC_PAUSED 13 /* the encoder is paused */ -#define CX18_F_I_HAVE_WORK 15 /* there is work to be done */ -#define CX18_F_I_WORK_HANDLER_DVB 18 /* work to be done for DVB */ #define CX18_F_I_INITED 21 /* set after first open */ #define CX18_F_I_FAILED 22 /* set if first open failed */ -#define CX18_F_I_WORK_INITED 23 /* worker thread initialized */ /* These are the VBI types as they appear in the embedded VBI private packets. */ #define CX18_SLICED_TYPE_TELETEXT_B (1) @@ -220,6 +224,7 @@ struct cx18_buffer { dma_addr_t dma_handle; u32 id; unsigned long b_flags; + unsigned skipped; char *buf; u32 bytesused; @@ -248,6 +253,27 @@ struct cx18_dvb { struct cx18; /* forward reference */ struct cx18_scb; /* forward reference */ + +#define CX18_MAX_MDL_ACKS 2 +#define CX18_MAX_EPU_WORK_ORDERS (CX18_MAX_FW_MDLS_PER_STREAM + 7) +/* CPU_DE_RELEASE_MDL can burst CX18_MAX_FW_MDLS_PER_STREAM orders in a group */ + +#define CX18_F_EWO_MB_STALE_UPON_RECEIPT 0x1 +#define CX18_F_EWO_MB_STALE_WHILE_PROC 0x2 +#define CX18_F_EWO_MB_STALE \ + (CX18_F_EWO_MB_STALE_UPON_RECEIPT | CX18_F_EWO_MB_STALE_WHILE_PROC) + +struct cx18_epu_work_order { + struct work_struct work; + atomic_t pending; + struct cx18 *cx; + unsigned long flags; + int rpu; + struct cx18_mailbox mb; + struct cx18_mdl_ack mdl_ack[CX18_MAX_MDL_ACKS]; + char *str; +}; + #define CX18_INVALID_TASK_HANDLE 0xffffffff struct cx18_stream { @@ -261,7 +287,7 @@ struct cx18_stream { unsigned mdl_offset; u32 id; - spinlock_t qlock; /* locks access to the queues */ + struct mutex qlock; /* locks access to the queues */ unsigned long s_flags; /* status flags, see above */ int dma; /* can be PCI_DMA_TODEVICE, PCI_DMA_FROMDEVICE or @@ -275,8 +301,8 @@ struct cx18_stream { /* Buffer Queues */ struct cx18_queue q_free; /* free buffers */ - struct cx18_queue q_full; /* full buffers */ - struct cx18_queue q_io; /* waiting for I/O */ + struct cx18_queue q_busy; /* busy buffers - in use by firmware */ + struct cx18_queue q_full; /* full buffers - data for user apps */ /* DVB / Digital Transport */ struct cx18_dvb dvb; @@ -353,12 +379,7 @@ struct cx18_i2c_algo_callback_data { int bus_index; /* 0 or 1 for the cx23418's 1st or 2nd I2C bus */ }; -#define CX18_MAX_MMIO_RETRIES 10 - -struct cx18_mmio_stats { - atomic_t retried_write[CX18_MAX_MMIO_RETRIES+1]; - atomic_t retried_read[CX18_MAX_MMIO_RETRIES+1]; -}; +#define CX18_MAX_MMIO_WR_RETRIES 10 /* Struct to hold info about cx18 cards */ struct cx18 { @@ -378,7 +399,9 @@ struct cx18 { u32 v4l2_cap; /* V4L2 capabilities of card */ u32 hw_flags; /* Hardware description of the board */ unsigned mdl_offset; - struct cx18_scb __iomem *scb; /* pointer to SCB */ + struct cx18_scb __iomem *scb; /* pointer to SCB */ + struct mutex epu2apu_mb_lock; /* protect driver to chip mailbox in SCB*/ + struct mutex epu2cpu_mb_lock; /* protect driver to chip mailbox in SCB*/ struct cx18_av_state av_state; @@ -397,6 +420,7 @@ struct cx18 { struct mutex serialize_lock; /* mutex used to serialize open/close/start/stop/ioctl operations */ struct cx18_options options; /* User options */ + int stream_buffers[CX18_MAX_STREAMS]; /* # of buffers for each stream */ int stream_buf_size[CX18_MAX_STREAMS]; /* Stream buffer size */ struct cx18_stream streams[CX18_MAX_STREAMS]; /* Stream data */ unsigned long i_flags; /* global cx18 flags */ @@ -428,14 +452,17 @@ struct cx18 { wait_queue_head_t mb_apu_waitq; wait_queue_head_t mb_cpu_waitq; - wait_queue_head_t mb_epu_waitq; - wait_queue_head_t mb_hpu_waitq; wait_queue_head_t cap_w; /* when the current DMA is finished this queue is woken up */ wait_queue_head_t dma_waitq; + u32 sw1_irq_mask; + u32 sw2_irq_mask; + u32 hw2_irq_mask; + struct workqueue_struct *work_queue; - struct work_struct work; + struct cx18_epu_work_order epu_work_order[CX18_MAX_EPU_WORK_ORDERS]; + char epu_debug_str[256]; /* CX18_EPU_DEBUG is rare: use shared space */ /* i2c */ struct i2c_adapter i2c_adap[2]; @@ -450,9 +477,6 @@ struct cx18 { u32 gpio_val; struct mutex gpio_lock; - /* Statistics */ - struct cx18_mmio_stats mmio_stats; - /* v4l2 and User settings */ /* codec settings */ @@ -481,4 +505,10 @@ void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv); /* First-open initialization: load firmware, etc. */ int cx18_init_on_first_open(struct cx18 *cx); +/* Test if the current VBI mode is raw (1) or sliced (0) */ +static inline int cx18_raw_vbi(const struct cx18 *cx) +{ + return cx->vbi.in.type == V4L2_BUF_TYPE_VBI_CAPTURE; +} + #endif /* CX18_DRIVER_H */ diff --git a/drivers/media/video/cx18/cx18-dvb.c b/drivers/media/video/cx18/cx18-dvb.c index 4542e2e5e3d7..bd5e6f3fd4d0 100644 --- a/drivers/media/video/cx18/cx18-dvb.c +++ b/drivers/media/video/cx18/cx18-dvb.c @@ -2,6 +2,7 @@ * cx18 functions for DVB support * * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -23,8 +24,6 @@ #include "cx18-dvb.h" #include "cx18-io.h" #include "cx18-streams.h" -#include "cx18-queue.h" -#include "cx18-scb.h" #include "cx18-cards.h" #include "s5h1409.h" #include "mxl5005s.h" @@ -109,20 +108,23 @@ static int cx18_dvb_start_feed(struct dvb_demux_feed *feed) if (!demux->dmx.frontend) return -EINVAL; - if (stream) { - mutex_lock(&stream->dvb.feedlock); - if (stream->dvb.feeding++ == 0) { - CX18_DEBUG_INFO("Starting Transport DMA\n"); - ret = cx18_start_v4l2_encode_stream(stream); - if (ret < 0) { - CX18_DEBUG_INFO( - "Failed to start Transport DMA\n"); - stream->dvb.feeding--; - } - } else - ret = 0; - mutex_unlock(&stream->dvb.feedlock); - } + if (!stream) + return -EINVAL; + + mutex_lock(&stream->dvb.feedlock); + if (stream->dvb.feeding++ == 0) { + CX18_DEBUG_INFO("Starting Transport DMA\n"); + set_bit(CX18_F_S_STREAMING, &stream->s_flags); + ret = cx18_start_v4l2_encode_stream(stream); + if (ret < 0) { + CX18_DEBUG_INFO("Failed to start Transport DMA\n"); + stream->dvb.feeding--; + if (stream->dvb.feeding == 0) + clear_bit(CX18_F_S_STREAMING, &stream->s_flags); + } + } else + ret = 0; + mutex_unlock(&stream->dvb.feedlock); return ret; } @@ -215,6 +217,10 @@ int cx18_dvb_register(struct cx18_stream *stream) dvb_net_init(dvb_adapter, &dvb->dvbnet, dmx); CX18_INFO("DVB Frontend registered\n"); + CX18_INFO("Registered DVB adapter%d for %s (%d x %d kB)\n", + stream->dvb.dvb_adapter.num, stream->name, + stream->buffers, stream->buf_size/1024); + mutex_init(&dvb->feedlock); dvb->enabled = 1; return ret; @@ -302,24 +308,3 @@ static int dvb_register(struct cx18_stream *stream) return ret; } - -void cx18_dvb_work_handler(struct cx18 *cx) -{ - struct cx18_buffer *buf; - struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_TS]; - - while ((buf = cx18_dequeue(s, &s->q_full)) != NULL) { - if (s->dvb.enabled) - dvb_dmx_swfilter(&s->dvb.demux, buf->buf, - buf->bytesused); - - cx18_enqueue(s, buf, &s->q_free); - cx18_buf_sync_for_device(s, buf); - if (s->handle == CX18_INVALID_TASK_HANDLE) /* FIXME: improve */ - continue; - - cx18_vapi(cx, CX18_CPU_DE_SET_MDL, 5, s->handle, - (void __iomem *)&cx->scb->cpu_mdl[buf->id] - cx->enc_mem, - 1, buf->id, s->buf_size); - } -} diff --git a/drivers/media/video/cx18/cx18-dvb.h b/drivers/media/video/cx18/cx18-dvb.h index bbdcefc87f28..bf8d8f6f5455 100644 --- a/drivers/media/video/cx18/cx18-dvb.h +++ b/drivers/media/video/cx18/cx18-dvb.h @@ -23,4 +23,3 @@ int cx18_dvb_register(struct cx18_stream *stream); void cx18_dvb_unregister(struct cx18_stream *stream); -void cx18_dvb_work_handler(struct cx18 *cx); diff --git a/drivers/media/video/cx18/cx18-fileops.c b/drivers/media/video/cx18/cx18-fileops.c index 5f9089907544..425271a29517 100644 --- a/drivers/media/video/cx18/cx18-fileops.c +++ b/drivers/media/video/cx18/cx18-fileops.c @@ -4,6 +4,7 @@ * Derived from ivtv-fileops.c * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -66,12 +67,11 @@ static int cx18_claim_stream(struct cx18_open_id *id, int type) } s->id = id->open_id; - /* CX18_DEC_STREAM_TYPE_MPG needs to claim CX18_DEC_STREAM_TYPE_VBI, - CX18_ENC_STREAM_TYPE_MPG needs to claim CX18_ENC_STREAM_TYPE_VBI + /* CX18_ENC_STREAM_TYPE_MPG needs to claim CX18_ENC_STREAM_TYPE_VBI (provided VBI insertion is on and sliced VBI is selected), for all other streams we're done */ if (type == CX18_ENC_STREAM_TYPE_MPG && - cx->vbi.insert_mpeg && cx->vbi.sliced_in->service_set) { + cx->vbi.insert_mpeg && !cx18_raw_vbi(cx)) { vbi_type = CX18_ENC_STREAM_TYPE_VBI; } else { return 0; @@ -185,8 +185,10 @@ static struct cx18_buffer *cx18_get_buffer(struct cx18_stream *s, int non_block, !test_bit(CX18_F_S_APPL_IO, &s_vbi->s_flags)) { while ((buf = cx18_dequeue(s_vbi, &s_vbi->q_full))) { /* byteswap and process VBI data */ -/* cx18_process_vbi_data(cx, buf, s_vbi->dma_pts, s_vbi->type); */ - cx18_enqueue(s_vbi, buf, &s_vbi->q_free); + cx18_process_vbi_data(cx, buf, + s_vbi->dma_pts, + s_vbi->type); + cx18_stream_put_buf_fw(s_vbi, buf); } } buf = &cx->vbi.sliced_mpeg_buf; @@ -194,11 +196,6 @@ static struct cx18_buffer *cx18_get_buffer(struct cx18_stream *s, int non_block, return buf; } - /* do we have leftover data? */ - buf = cx18_dequeue(s, &s->q_io); - if (buf) - return buf; - /* do we have new data? */ buf = cx18_dequeue(s, &s->q_full); if (buf) { @@ -262,7 +259,7 @@ static size_t cx18_copy_buf_to_user(struct cx18_stream *s, if (len > ucount) len = ucount; if (cx->vbi.insert_mpeg && s->type == CX18_ENC_STREAM_TYPE_MPG && - cx->vbi.sliced_in->service_set && buf != &cx->vbi.sliced_mpeg_buf) { + !cx18_raw_vbi(cx) && buf != &cx->vbi.sliced_mpeg_buf) { const char *start = buf->buf + buf->readpos; const char *p = start + 1; const u8 *q; @@ -337,8 +334,7 @@ static ssize_t cx18_read(struct cx18_stream *s, char __user *ubuf, /* Each VBI buffer is one frame, the v4l2 API says that for VBI the frames should arrive one-by-one, so make sure we never output more than one VBI frame at a time */ - if (s->type == CX18_ENC_STREAM_TYPE_VBI && - cx->vbi.sliced_in->service_set) + if (s->type == CX18_ENC_STREAM_TYPE_VBI && !cx18_raw_vbi(cx)) single_frame = 1; for (;;) { @@ -365,16 +361,10 @@ static ssize_t cx18_read(struct cx18_stream *s, char __user *ubuf, tot_count - tot_written); if (buf != &cx->vbi.sliced_mpeg_buf) { - if (buf->readpos == buf->bytesused) { - cx18_buf_sync_for_device(s, buf); - cx18_enqueue(s, buf, &s->q_free); - cx18_vapi(cx, CX18_CPU_DE_SET_MDL, 5, - s->handle, - (void __iomem *)&cx->scb->cpu_mdl[buf->id] - - cx->enc_mem, - 1, buf->id, s->buf_size); - } else - cx18_enqueue(s, buf, &s->q_io); + if (buf->readpos == buf->bytesused) + cx18_stream_put_buf_fw(s, buf); + else + cx18_push(s, buf, &s->q_full); } else if (buf->readpos == buf->bytesused) { int idx = cx->vbi.inserted_frame % CX18_VBI_FRAMES; @@ -518,7 +508,7 @@ unsigned int cx18_v4l2_enc_poll(struct file *filp, poll_table *wait) CX18_DEBUG_HI_FILE("Encoder poll\n"); poll_wait(filp, &s->waitq, wait); - if (atomic_read(&s->q_full.buffers) || atomic_read(&s->q_io.buffers)) + if (atomic_read(&s->q_full.buffers)) return POLLIN | POLLRDNORM; if (eof) return POLLHUP; diff --git a/drivers/media/video/cx18/cx18-firmware.c b/drivers/media/video/cx18/cx18-firmware.c index 51534428cd00..1fa95da1575e 100644 --- a/drivers/media/video/cx18/cx18-firmware.c +++ b/drivers/media/video/cx18/cx18-firmware.c @@ -2,6 +2,7 @@ * cx18 firmware functions * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -25,6 +26,7 @@ #include "cx18-irq.h" #include "cx18-firmware.h" #include "cx18-cards.h" +#include "cx18-av-core.h" #include <linux/firmware.h> #define CX18_PROC_SOFT_RESET 0xc70010 @@ -121,6 +123,7 @@ static int load_cpu_fw_direct(const char *fn, u8 __iomem *mem, struct cx18 *cx) if (cx18_raw_readl(cx, dst) != *src) { CX18_ERR("Mismatch at offset %x\n", i); release_firmware(fw); + cx18_setup_page(cx, 0); return -EIO; } dst++; @@ -131,10 +134,12 @@ static int load_cpu_fw_direct(const char *fn, u8 __iomem *mem, struct cx18 *cx) CX18_INFO("loaded %s firmware (%zd bytes)\n", fn, fw->size); size = fw->size; release_firmware(fw); + cx18_setup_page(cx, SCB_OFFSET); return size; } -static int load_apu_fw_direct(const char *fn, u8 __iomem *dst, struct cx18 *cx) +static int load_apu_fw_direct(const char *fn, u8 __iomem *dst, struct cx18 *cx, + u32 *entry_addr) { const struct firmware *fw = NULL; int i, j; @@ -149,9 +154,11 @@ static int load_apu_fw_direct(const char *fn, u8 __iomem *dst, struct cx18 *cx) if (request_firmware(&fw, fn, &cx->dev->dev)) { CX18_ERR("unable to open firmware %s\n", fn); CX18_ERR("did you put the firmware in the hotplug firmware directory?\n"); + cx18_setup_page(cx, 0); return -ENOMEM; } + *entry_addr = 0; src = (const u32 *)fw->data; vers = fw->data + sizeof(seghdr); sz = fw->size; @@ -168,10 +175,12 @@ static int load_apu_fw_direct(const char *fn, u8 __iomem *dst, struct cx18 *cx) } CX18_DEBUG_INFO("load segment %x-%x\n", seghdr.addr, seghdr.addr + seghdr.size - 1); + if (*entry_addr == 0) + *entry_addr = seghdr.addr; if (offset + seghdr.size > sz) break; for (i = 0; i < seghdr.size; i += 4096) { - cx18_setup_page(cx, offset + i); + cx18_setup_page(cx, seghdr.addr + i); for (j = i; j < seghdr.size && j < i + 4096; j += 4) { /* no need for endianness conversion on the ppc */ cx18_raw_writel(cx, src[(offset + j) / 4], @@ -181,6 +190,7 @@ static int load_apu_fw_direct(const char *fn, u8 __iomem *dst, struct cx18 *cx) CX18_ERR("Mismatch at offset %x\n", offset + j); release_firmware(fw); + cx18_setup_page(cx, 0); return -EIO; } } @@ -192,16 +202,17 @@ static int load_apu_fw_direct(const char *fn, u8 __iomem *dst, struct cx18 *cx) fn, apu_version, fw->size); size = fw->size; release_firmware(fw); - /* Clear bit0 for APU to start from 0 */ - cx18_write_reg(cx, cx18_read_reg(cx, 0xc72030) & ~1, 0xc72030); + cx18_setup_page(cx, 0); return size; } void cx18_halt_firmware(struct cx18 *cx) { CX18_DEBUG_INFO("Preparing for firmware halt.\n"); - cx18_write_reg(cx, 0x000F000F, CX18_PROC_SOFT_RESET); /* stop the fw */ - cx18_write_reg(cx, 0x00020002, CX18_ADEC_CONTROL); + cx18_write_reg_expect(cx, 0x000F000F, CX18_PROC_SOFT_RESET, + 0x0000000F, 0x000F000F); + cx18_write_reg_expect(cx, 0x00020002, CX18_ADEC_CONTROL, + 0x00000002, 0x00020002); } void cx18_init_power(struct cx18 *cx, int lowpwr) @@ -211,9 +222,48 @@ void cx18_init_power(struct cx18 *cx, int lowpwr) cx18_write_reg(cx, 0x00000008, CX18_PLL_POWER_DOWN); /* ADEC out of sleep */ - cx18_write_reg(cx, 0x00020000, CX18_ADEC_CONTROL); - - /* The fast clock is at 200/245 MHz */ + cx18_write_reg_expect(cx, 0x00020000, CX18_ADEC_CONTROL, + 0x00000000, 0x00020002); + + /* + * The PLL parameters are based on the external crystal frequency that + * would ideally be: + * + * NTSC Color subcarrier freq * 8 = + * 4.5 MHz/286 * 455/2 * 8 = 28.63636363... MHz + * + * The accidents of history and rationale that explain from where this + * combination of magic numbers originate can be found in: + * + * [1] Abrahams, I. C., "Choice of Chrominance Subcarrier Frequency in + * the NTSC Standards", Proceedings of the I-R-E, January 1954, pp 79-80 + * + * [2] Abrahams, I. C., "The 'Frequency Interleaving' Principle in the + * NTSC Standards", Proceedings of the I-R-E, January 1954, pp 81-83 + * + * As Mike Bradley has rightly pointed out, it's not the exact crystal + * frequency that matters, only that all parts of the driver and + * firmware are using the same value (close to the ideal value). + * + * Since I have a strong suspicion that, if the firmware ever assumes a + * crystal value at all, it will assume 28.636360 MHz, the crystal + * freq used in calculations in this driver will be: + * + * xtal_freq = 28.636360 MHz + * + * an error of less than 0.13 ppm which is way, way better than any off + * the shelf crystal will have for accuracy anyway. + * + * Below I aim to run the PLLs' VCOs near 400 MHz to minimze errors. + * + * Many thanks to Jeff Campbell and Mike Bradley for their extensive + * investigation, experimentation, testing, and suggested solutions of + * of audio/video sync problems with SVideo and CVBS captures. + */ + + /* the fast clock is at 200/245 MHz */ + /* 1 * xtal_freq * 0x0d.f7df9b8 / 2 = 200 MHz: 400 MHz pre post-divide*/ + /* 1 * xtal_freq * 0x11.1c71eb8 / 2 = 245 MHz: 490 MHz pre post-divide*/ cx18_write_reg(cx, lowpwr ? 0xD : 0x11, CX18_FAST_CLOCK_PLL_INT); cx18_write_reg(cx, lowpwr ? 0x1EFBF37 : 0x038E3D7, CX18_FAST_CLOCK_PLL_FRAC); @@ -223,16 +273,36 @@ void cx18_init_power(struct cx18 *cx, int lowpwr) cx18_write_reg(cx, 4, CX18_FAST_CLOCK_PLL_ADJUST_BANDWIDTH); /* set slow clock to 125/120 MHz */ - cx18_write_reg(cx, lowpwr ? 0x11 : 0x10, CX18_SLOW_CLOCK_PLL_INT); - cx18_write_reg(cx, lowpwr ? 0xEBAF05 : 0x18618A8, + /* xtal_freq * 0x0d.1861a20 / 3 = 125 MHz: 375 MHz before post-divide */ + /* xtal_freq * 0x0c.92493f8 / 3 = 120 MHz: 360 MHz before post-divide */ + cx18_write_reg(cx, lowpwr ? 0xD : 0xC, CX18_SLOW_CLOCK_PLL_INT); + cx18_write_reg(cx, lowpwr ? 0x30C344 : 0x124927F, CX18_SLOW_CLOCK_PLL_FRAC); - cx18_write_reg(cx, 4, CX18_SLOW_CLOCK_PLL_POST); + cx18_write_reg(cx, 3, CX18_SLOW_CLOCK_PLL_POST); /* mpeg clock pll 54MHz */ + /* xtal_freq * 0xf.15f17f0 / 8 = 54 MHz: 432 MHz before post-divide */ cx18_write_reg(cx, 0xF, CX18_MPEG_CLOCK_PLL_INT); - cx18_write_reg(cx, 0x2BCFEF, CX18_MPEG_CLOCK_PLL_FRAC); + cx18_write_reg(cx, 0x2BE2FE, CX18_MPEG_CLOCK_PLL_FRAC); cx18_write_reg(cx, 8, CX18_MPEG_CLOCK_PLL_POST); + /* + * VDCLK Integer = 0x0f, Post Divider = 0x04 + * AIMCLK Integer = 0x0e, Post Divider = 0x16 + */ + cx18_av_write4(cx, CXADEC_PLL_CTRL1, 0x160e040f); + + /* VDCLK Fraction = 0x2be2fe */ + /* xtal * 0xf.15f17f0/4 = 108 MHz: 432 MHz before post divide */ + cx18_av_write4(cx, CXADEC_VID_PLL_FRAC, 0x002be2fe); + + /* AIMCLK Fraction = 0x05227ad */ + /* xtal * 0xe.2913d68/0x16 = 48000 * 384: 406 MHz before post-divide */ + cx18_av_write4(cx, CXADEC_AUX_PLL_FRAC, 0x005227ad); + + /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x16 */ + cx18_av_write(cx, CXADEC_I2S_MCLK, 0x56); + /* Defaults */ /* APU = SC or SC/2 = 125/62.5 */ /* EPU = SC = 125 */ @@ -248,22 +318,34 @@ void cx18_init_power(struct cx18 *cx, int lowpwr) /* VFC = disabled */ /* USB = disabled */ - cx18_write_reg(cx, lowpwr ? 0xFFFF0020 : 0x00060004, - CX18_CLOCK_SELECT1); - cx18_write_reg(cx, lowpwr ? 0xFFFF0004 : 0x00060006, - CX18_CLOCK_SELECT2); - - cx18_write_reg(cx, 0xFFFF0002, CX18_HALF_CLOCK_SELECT1); - cx18_write_reg(cx, 0xFFFF0104, CX18_HALF_CLOCK_SELECT2); + if (lowpwr) { + cx18_write_reg_expect(cx, 0xFFFF0020, CX18_CLOCK_SELECT1, + 0x00000020, 0xFFFFFFFF); + cx18_write_reg_expect(cx, 0xFFFF0004, CX18_CLOCK_SELECT2, + 0x00000004, 0xFFFFFFFF); + } else { + /* This doesn't explicitly set every clock select */ + cx18_write_reg_expect(cx, 0x00060004, CX18_CLOCK_SELECT1, + 0x00000004, 0x00060006); + cx18_write_reg_expect(cx, 0x00060006, CX18_CLOCK_SELECT2, + 0x00000006, 0x00060006); + } - cx18_write_reg(cx, 0xFFFF9026, CX18_CLOCK_ENABLE1); - cx18_write_reg(cx, 0xFFFF3105, CX18_CLOCK_ENABLE2); + cx18_write_reg_expect(cx, 0xFFFF0002, CX18_HALF_CLOCK_SELECT1, + 0x00000002, 0xFFFFFFFF); + cx18_write_reg_expect(cx, 0xFFFF0104, CX18_HALF_CLOCK_SELECT2, + 0x00000104, 0xFFFFFFFF); + cx18_write_reg_expect(cx, 0xFFFF9026, CX18_CLOCK_ENABLE1, + 0x00009026, 0xFFFFFFFF); + cx18_write_reg_expect(cx, 0xFFFF3105, CX18_CLOCK_ENABLE2, + 0x00003105, 0xFFFFFFFF); } void cx18_init_memory(struct cx18 *cx) { cx18_msleep_timeout(10, 0); - cx18_write_reg(cx, 0x10000, CX18_DDR_SOFT_RESET); + cx18_write_reg_expect(cx, 0x00010000, CX18_DDR_SOFT_RESET, + 0x00000000, 0x00010001); cx18_msleep_timeout(10, 0); cx18_write_reg(cx, cx->card->ddr.chip_config, CX18_DDR_CHIP_CONFIG); @@ -282,13 +364,15 @@ void cx18_init_memory(struct cx18 *cx) cx18_msleep_timeout(10, 0); - cx18_write_reg(cx, 0x20000, CX18_DDR_SOFT_RESET); + cx18_write_reg_expect(cx, 0x00020000, CX18_DDR_SOFT_RESET, + 0x00000000, 0x00020002); cx18_msleep_timeout(10, 0); /* use power-down mode when idle */ cx18_write_reg(cx, 0x00000010, CX18_DDR_POWER_REG); - cx18_write_reg(cx, 0x10001, CX18_REG_BUS_TIMEOUT_EN); + cx18_write_reg_expect(cx, 0x00010001, CX18_REG_BUS_TIMEOUT_EN, + 0x00000001, 0x00010001); cx18_write_reg(cx, 0x48, CX18_DDR_MB_PER_ROW_7); cx18_write_reg(cx, 0xE0000, CX18_DDR_BASE_63_ADDR); @@ -307,51 +391,76 @@ void cx18_init_memory(struct cx18 *cx) int cx18_firmware_init(struct cx18 *cx) { + u32 fw_entry_addr; + int sz, retries; + u32 api_args[MAX_MB_ARGUMENTS]; + /* Allow chip to control CLKRUN */ cx18_write_reg(cx, 0x5, CX18_DSP0_INTERRUPT_MASK); - cx18_write_reg(cx, 0x000F000F, CX18_PROC_SOFT_RESET); /* stop the fw */ + /* Stop the firmware */ + cx18_write_reg_expect(cx, 0x000F000F, CX18_PROC_SOFT_RESET, + 0x0000000F, 0x000F000F); cx18_msleep_timeout(1, 0); + /* If the CPU is still running */ + if ((cx18_read_reg(cx, CX18_PROC_SOFT_RESET) & 8) == 0) { + CX18_ERR("%s: couldn't stop CPU to load firmware\n", __func__); + return -EIO; + } + cx18_sw1_irq_enable(cx, IRQ_CPU_TO_EPU | IRQ_APU_TO_EPU); cx18_sw2_irq_enable(cx, IRQ_CPU_TO_EPU_ACK | IRQ_APU_TO_EPU_ACK); - /* Only if the processor is not running */ - if (cx18_read_reg(cx, CX18_PROC_SOFT_RESET) & 8) { - int sz = load_apu_fw_direct("v4l-cx23418-apu.fw", - cx->enc_mem, cx); - - cx18_write_enc(cx, 0xE51FF004, 0); - cx18_write_enc(cx, 0xa00000, 4); /* todo: not hardcoded */ - /* Start APU */ - cx18_write_reg(cx, 0x00010000, CX18_PROC_SOFT_RESET); - cx18_msleep_timeout(500, 0); - - sz = sz <= 0 ? sz : load_cpu_fw_direct("v4l-cx23418-cpu.fw", - cx->enc_mem, cx); - - if (sz > 0) { - int retries = 0; - - /* start the CPU */ - cx18_write_reg(cx, 0x00080000, CX18_PROC_SOFT_RESET); - while (retries++ < 50) { /* Loop for max 500mS */ - if ((cx18_read_reg(cx, CX18_PROC_SOFT_RESET) - & 1) == 0) - break; - cx18_msleep_timeout(10, 0); - } - cx18_msleep_timeout(200, 0); - if (retries == 51) { - CX18_ERR("Could not start the CPU\n"); - return -EIO; - } - } - if (sz <= 0) - return -EIO; + sz = load_cpu_fw_direct("v4l-cx23418-cpu.fw", cx->enc_mem, cx); + if (sz <= 0) + return sz; + + /* The SCB & IPC area *must* be correct before starting the firmwares */ + cx18_init_scb(cx); + + fw_entry_addr = 0; + sz = load_apu_fw_direct("v4l-cx23418-apu.fw", cx->enc_mem, cx, + &fw_entry_addr); + if (sz <= 0) + return sz; + + /* Start the CPU. The CPU will take care of the APU for us. */ + cx18_write_reg_expect(cx, 0x00080000, CX18_PROC_SOFT_RESET, + 0x00000000, 0x00080008); + + /* Wait up to 500 ms for the APU to come out of reset */ + for (retries = 0; + retries < 50 && (cx18_read_reg(cx, CX18_PROC_SOFT_RESET) & 1) == 1; + retries++) + cx18_msleep_timeout(10, 0); + + cx18_msleep_timeout(200, 0); + + if (retries == 50 && + (cx18_read_reg(cx, CX18_PROC_SOFT_RESET) & 1) == 1) { + CX18_ERR("Could not start the CPU\n"); + return -EIO; } + + /* + * The CPU had once before set up to receive an interrupt for it's + * outgoing IRQ_CPU_TO_EPU_ACK to us. If it ever does this, we get an + * interrupt when it sends us an ack, but by the time we process it, + * that flag in the SW2 status register has been cleared by the CPU + * firmware. We'll prevent that not so useful condition from happening + * by clearing the CPU's interrupt enables for Ack IRQ's we want to + * process. + */ + cx18_sw2_irq_disable_cpu(cx, IRQ_CPU_TO_EPU_ACK | IRQ_APU_TO_EPU_ACK); + + /* Try a benign command to see if the CPU is alive and well */ + sz = cx18_vapi_result(cx, api_args, CX18_CPU_DEBUG_PEEK32, 1, 0); + if (sz < 0) + return sz; + /* initialize GPIO */ - cx18_write_reg(cx, 0x14001400, 0xC78110); + cx18_write_reg_expect(cx, 0x14001400, 0xc78110, 0x00001400, 0x14001400); return 0; } diff --git a/drivers/media/video/cx18/cx18-gpio.c b/drivers/media/video/cx18/cx18-gpio.c index 0e560421989e..1a99329f33cb 100644 --- a/drivers/media/video/cx18/cx18-gpio.c +++ b/drivers/media/video/cx18/cx18-gpio.c @@ -4,6 +4,7 @@ * Derived from ivtv-gpio.c * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -47,15 +48,19 @@ static void gpio_write(struct cx18 *cx) { - u32 dir = cx->gpio_dir; - u32 val = cx->gpio_val; - - cx18_write_reg(cx, (dir & 0xffff) << 16, CX18_REG_GPIO_DIR1); - cx18_write_reg(cx, ((dir & 0xffff) << 16) | (val & 0xffff), - CX18_REG_GPIO_OUT1); - cx18_write_reg(cx, dir & 0xffff0000, CX18_REG_GPIO_DIR2); - cx18_write_reg_sync(cx, (dir & 0xffff0000) | ((val & 0xffff0000) >> 16), - CX18_REG_GPIO_OUT2); + u32 dir_lo = cx->gpio_dir & 0xffff; + u32 val_lo = cx->gpio_val & 0xffff; + u32 dir_hi = cx->gpio_dir >> 16; + u32 val_hi = cx->gpio_val >> 16; + + cx18_write_reg_expect(cx, dir_lo << 16, + CX18_REG_GPIO_DIR1, ~dir_lo, dir_lo); + cx18_write_reg_expect(cx, (dir_lo << 16) | val_lo, + CX18_REG_GPIO_OUT1, val_lo, dir_lo); + cx18_write_reg_expect(cx, dir_hi << 16, + CX18_REG_GPIO_DIR2, ~dir_hi, dir_hi); + cx18_write_reg_expect(cx, (dir_hi << 16) | val_hi, + CX18_REG_GPIO_OUT2, val_hi, dir_hi); } void cx18_reset_i2c_slaves_gpio(struct cx18 *cx) diff --git a/drivers/media/video/cx18/cx18-gpio.h b/drivers/media/video/cx18/cx18-gpio.h index beb7424b9944..39ffccc19d8a 100644 --- a/drivers/media/video/cx18/cx18-gpio.h +++ b/drivers/media/video/cx18/cx18-gpio.h @@ -4,6 +4,7 @@ * Derived from ivtv-gpio.h * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/media/video/cx18/cx18-i2c.c b/drivers/media/video/cx18/cx18-i2c.c index aa09e557b195..8941f58bed7f 100644 --- a/drivers/media/video/cx18/cx18-i2c.c +++ b/drivers/media/video/cx18/cx18-i2c.c @@ -4,6 +4,7 @@ * Derived from ivtv-i2c.c * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -27,6 +28,7 @@ #include "cx18-gpio.h" #include "cx18-av-core.h" #include "cx18-i2c.h" +#include "cx18-irq.h" #define CX18_REG_I2C_1_WR 0xf15000 #define CX18_REG_I2C_1_RD 0xf15008 @@ -160,9 +162,9 @@ static void cx18_setscl(void *data, int state) u32 r = cx18_read_reg(cx, addr); if (state) - cx18_write_reg_sync(cx, r | SETSCL_BIT, addr); + cx18_write_reg(cx, r | SETSCL_BIT, addr); else - cx18_write_reg_sync(cx, r & ~SETSCL_BIT, addr); + cx18_write_reg(cx, r & ~SETSCL_BIT, addr); } static void cx18_setsda(void *data, int state) @@ -173,9 +175,9 @@ static void cx18_setsda(void *data, int state) u32 r = cx18_read_reg(cx, addr); if (state) - cx18_write_reg_sync(cx, r | SETSDL_BIT, addr); + cx18_write_reg(cx, r | SETSDL_BIT, addr); else - cx18_write_reg_sync(cx, r & ~SETSDL_BIT, addr); + cx18_write_reg(cx, r & ~SETSDL_BIT, addr); } static int cx18_getscl(void *data) @@ -396,30 +398,33 @@ int init_cx18_i2c(struct cx18 *cx) if (cx18_read_reg(cx, CX18_REG_I2C_2_WR) != 0x0003c02f) { /* Reset/Unreset I2C hardware block */ /* Clock select 220MHz */ - cx18_write_reg(cx, 0x10000000, 0xc71004); + cx18_write_reg_expect(cx, 0x10000000, 0xc71004, + 0x00000000, 0x10001000); /* Clock Enable */ - cx18_write_reg_sync(cx, 0x10001000, 0xc71024); + cx18_write_reg_expect(cx, 0x10001000, 0xc71024, + 0x00001000, 0x10001000); } /* courtesy of Steven Toth <stoth@hauppauge.com> */ - cx18_write_reg_sync(cx, 0x00c00000, 0xc7001c); + cx18_write_reg_expect(cx, 0x00c00000, 0xc7001c, 0x00000000, 0x00c000c0); mdelay(10); - cx18_write_reg_sync(cx, 0x00c000c0, 0xc7001c); + cx18_write_reg_expect(cx, 0x00c000c0, 0xc7001c, 0x000000c0, 0x00c000c0); mdelay(10); - cx18_write_reg_sync(cx, 0x00c00000, 0xc7001c); + cx18_write_reg_expect(cx, 0x00c00000, 0xc7001c, 0x00000000, 0x00c000c0); mdelay(10); /* Set to edge-triggered intrs. */ - cx18_write_reg_sync(cx, 0x00c00000, 0xc730c8); + cx18_write_reg(cx, 0x00c00000, 0xc730c8); /* Clear any stale intrs */ - cx18_write_reg_sync(cx, 0x00c00000, 0xc730c4); + cx18_write_reg_expect(cx, HW2_I2C1_INT|HW2_I2C2_INT, HW2_INT_CLR_STATUS, + ~(HW2_I2C1_INT|HW2_I2C2_INT), HW2_I2C1_INT|HW2_I2C2_INT); /* Hw I2C1 Clock Freq ~100kHz */ - cx18_write_reg_sync(cx, 0x00021c0f & ~4, CX18_REG_I2C_1_WR); + cx18_write_reg(cx, 0x00021c0f & ~4, CX18_REG_I2C_1_WR); cx18_setscl(&cx->i2c_algo_cb_data[0], 1); cx18_setsda(&cx->i2c_algo_cb_data[0], 1); /* Hw I2C2 Clock Freq ~100kHz */ - cx18_write_reg_sync(cx, 0x00021c0f & ~4, CX18_REG_I2C_2_WR); + cx18_write_reg(cx, 0x00021c0f & ~4, CX18_REG_I2C_2_WR); cx18_setscl(&cx->i2c_algo_cb_data[1], 1); cx18_setsda(&cx->i2c_algo_cb_data[1], 1); diff --git a/drivers/media/video/cx18/cx18-io.c b/drivers/media/video/cx18/cx18-io.c index 220fae8d4ad7..ec5b3d7bcc6b 100644 --- a/drivers/media/video/cx18/cx18-io.c +++ b/drivers/media/video/cx18/cx18-io.c @@ -24,179 +24,6 @@ #include "cx18-io.h" #include "cx18-irq.h" -void cx18_log_statistics(struct cx18 *cx) -{ - int i; - - if (!(cx18_debug & CX18_DBGFLG_INFO)) - return; - - for (i = 0; i <= CX18_MAX_MMIO_RETRIES; i++) - CX18_DEBUG_INFO("retried_write[%d] = %d\n", i, - atomic_read(&cx->mmio_stats.retried_write[i])); - for (i = 0; i <= CX18_MAX_MMIO_RETRIES; i++) - CX18_DEBUG_INFO("retried_read[%d] = %d\n", i, - atomic_read(&cx->mmio_stats.retried_read[i])); - return; -} - -void cx18_raw_writel_retry(struct cx18 *cx, u32 val, void __iomem *addr) -{ - int i; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - cx18_raw_writel_noretry(cx, val, addr); - if (val == cx18_raw_readl_noretry(cx, addr)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -u32 cx18_raw_readl_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u32 val; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - val = cx18_raw_readl_noretry(cx, addr); - if (val != 0xffffffff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - -u16 cx18_raw_readw_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u16 val; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - val = cx18_raw_readw_noretry(cx, addr); - if (val != 0xffff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - -void cx18_writel_retry(struct cx18 *cx, u32 val, void __iomem *addr) -{ - int i; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - cx18_writel_noretry(cx, val, addr); - if (val == cx18_readl_noretry(cx, addr)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -void _cx18_writel_expect(struct cx18 *cx, u32 val, void __iomem *addr, - u32 eval, u32 mask) -{ - int i; - eval &= mask; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - cx18_writel_noretry(cx, val, addr); - if (eval == (cx18_readl_noretry(cx, addr) & mask)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -void cx18_writew_retry(struct cx18 *cx, u16 val, void __iomem *addr) -{ - int i; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - cx18_writew_noretry(cx, val, addr); - if (val == cx18_readw_noretry(cx, addr)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -void cx18_writeb_retry(struct cx18 *cx, u8 val, void __iomem *addr) -{ - int i; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - cx18_writeb_noretry(cx, val, addr); - if (val == cx18_readb_noretry(cx, addr)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -u32 cx18_readl_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u32 val; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - val = cx18_readl_noretry(cx, addr); - if (val != 0xffffffff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - -u16 cx18_readw_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u16 val; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - val = cx18_readw_noretry(cx, addr); - if (val != 0xffff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - -u8 cx18_readb_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u8 val; - for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { - val = cx18_readb_noretry(cx, addr); - if (val != 0xff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - -void cx18_memcpy_fromio(struct cx18 *cx, void *to, - const void __iomem *from, unsigned int len) -{ - const u8 __iomem *src = from; - u8 *dst = to; - - /* Align reads on the CX23418's addresses */ - if ((len > 0) && ((unsigned long) src & 1)) { - *dst = cx18_readb(cx, src); - len--; - dst++; - src++; - } - if ((len > 1) && ((unsigned long) src & 2)) { - *((u16 *)dst) = cx18_raw_readw(cx, src); - len -= 2; - dst += 2; - src += 2; - } - while (len > 3) { - *((u32 *)dst) = cx18_raw_readl(cx, src); - len -= 4; - dst += 4; - src += 4; - } - if (len > 1) { - *((u16 *)dst) = cx18_raw_readw(cx, src); - len -= 2; - dst += 2; - src += 2; - } - if (len > 0) - *dst = cx18_readb(cx, src); -} - void cx18_memset_io(struct cx18 *cx, void __iomem *addr, int val, size_t count) { u8 __iomem *dst = addr; @@ -230,32 +57,35 @@ void cx18_memset_io(struct cx18 *cx, void __iomem *addr, int val, size_t count) void cx18_sw1_irq_enable(struct cx18 *cx, u32 val) { - u32 r; cx18_write_reg_expect(cx, val, SW1_INT_STATUS, ~val, val); - r = cx18_read_reg(cx, SW1_INT_ENABLE_PCI); - cx18_write_reg(cx, r | val, SW1_INT_ENABLE_PCI); + cx->sw1_irq_mask = cx18_read_reg(cx, SW1_INT_ENABLE_PCI) | val; + cx18_write_reg(cx, cx->sw1_irq_mask, SW1_INT_ENABLE_PCI); } void cx18_sw1_irq_disable(struct cx18 *cx, u32 val) { - u32 r; - r = cx18_read_reg(cx, SW1_INT_ENABLE_PCI); - cx18_write_reg(cx, r & ~val, SW1_INT_ENABLE_PCI); + cx->sw1_irq_mask = cx18_read_reg(cx, SW1_INT_ENABLE_PCI) & ~val; + cx18_write_reg(cx, cx->sw1_irq_mask, SW1_INT_ENABLE_PCI); } void cx18_sw2_irq_enable(struct cx18 *cx, u32 val) { - u32 r; cx18_write_reg_expect(cx, val, SW2_INT_STATUS, ~val, val); - r = cx18_read_reg(cx, SW2_INT_ENABLE_PCI); - cx18_write_reg(cx, r | val, SW2_INT_ENABLE_PCI); + cx->sw2_irq_mask = cx18_read_reg(cx, SW2_INT_ENABLE_PCI) | val; + cx18_write_reg(cx, cx->sw2_irq_mask, SW2_INT_ENABLE_PCI); } void cx18_sw2_irq_disable(struct cx18 *cx, u32 val) { + cx->sw2_irq_mask = cx18_read_reg(cx, SW2_INT_ENABLE_PCI) & ~val; + cx18_write_reg(cx, cx->sw2_irq_mask, SW2_INT_ENABLE_PCI); +} + +void cx18_sw2_irq_disable_cpu(struct cx18 *cx, u32 val) +{ u32 r; - r = cx18_read_reg(cx, SW2_INT_ENABLE_PCI); - cx18_write_reg(cx, r & ~val, SW2_INT_ENABLE_PCI); + r = cx18_read_reg(cx, SW2_INT_ENABLE_CPU); + cx18_write_reg(cx, r & ~val, SW2_INT_ENABLE_CPU); } void cx18_setup_page(struct cx18 *cx, u32 addr) diff --git a/drivers/media/video/cx18/cx18-io.h b/drivers/media/video/cx18/cx18-io.h index 425244453ea7..2635b3a8cc96 100644 --- a/drivers/media/video/cx18/cx18-io.h +++ b/drivers/media/video/cx18/cx18-io.h @@ -25,232 +25,125 @@ #include "cx18-driver.h" -static inline void cx18_io_delay(struct cx18 *cx) -{ - if (cx->options.mmio_ndelay) - ndelay(cx->options.mmio_ndelay); -} - /* * Readback and retry of MMIO access for reliability: * The concept was suggested by Steve Toth <stoth@linuxtv.org>. * The implmentation is the fault of Andy Walls <awalls@radix.net>. + * + * *write* functions are implied to retry the mmio unless suffixed with _noretry + * *read* functions never retry the mmio (it never helps to do so) */ -/* Statistics gathering */ -static inline -void cx18_log_write_retries(struct cx18 *cx, int i, const void __iomem *addr) -{ - if (i > CX18_MAX_MMIO_RETRIES) - i = CX18_MAX_MMIO_RETRIES; - atomic_inc(&cx->mmio_stats.retried_write[i]); - return; -} - -static inline -void cx18_log_read_retries(struct cx18 *cx, int i, const void __iomem *addr) +/* Non byteswapping memory mapped IO */ +static inline u32 cx18_raw_readl(struct cx18 *cx, const void __iomem *addr) { - if (i > CX18_MAX_MMIO_RETRIES) - i = CX18_MAX_MMIO_RETRIES; - atomic_inc(&cx->mmio_stats.retried_read[i]); - return; + return __raw_readl(addr); } -void cx18_log_statistics(struct cx18 *cx); - -/* Non byteswapping memory mapped IO */ static inline void cx18_raw_writel_noretry(struct cx18 *cx, u32 val, void __iomem *addr) { __raw_writel(val, addr); - cx18_io_delay(cx); } -void cx18_raw_writel_retry(struct cx18 *cx, u32 val, void __iomem *addr); - static inline void cx18_raw_writel(struct cx18 *cx, u32 val, void __iomem *addr) { - if (cx18_retry_mmio) - cx18_raw_writel_retry(cx, val, addr); - else + int i; + for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { cx18_raw_writel_noretry(cx, val, addr); + if (val == cx18_raw_readl(cx, addr)) + break; + } } - -static inline -u32 cx18_raw_readl_noretry(struct cx18 *cx, const void __iomem *addr) -{ - u32 ret = __raw_readl(addr); - cx18_io_delay(cx); - return ret; -} - -u32 cx18_raw_readl_retry(struct cx18 *cx, const void __iomem *addr); - -static inline u32 cx18_raw_readl(struct cx18 *cx, const void __iomem *addr) +/* Normal memory mapped IO */ +static inline u32 cx18_readl(struct cx18 *cx, const void __iomem *addr) { - if (cx18_retry_mmio) - return cx18_raw_readl_retry(cx, addr); - - return cx18_raw_readl_noretry(cx, addr); + return readl(addr); } - static inline -u16 cx18_raw_readw_noretry(struct cx18 *cx, const void __iomem *addr) +void cx18_writel_noretry(struct cx18 *cx, u32 val, void __iomem *addr) { - u16 ret = __raw_readw(addr); - cx18_io_delay(cx); - return ret; + writel(val, addr); } -u16 cx18_raw_readw_retry(struct cx18 *cx, const void __iomem *addr); - -static inline u16 cx18_raw_readw(struct cx18 *cx, const void __iomem *addr) +static inline void cx18_writel(struct cx18 *cx, u32 val, void __iomem *addr) { - if (cx18_retry_mmio) - return cx18_raw_readw_retry(cx, addr); - - return cx18_raw_readw_noretry(cx, addr); + int i; + for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { + cx18_writel_noretry(cx, val, addr); + if (val == cx18_readl(cx, addr)) + break; + } } - -/* Normal memory mapped IO */ static inline -void cx18_writel_noretry(struct cx18 *cx, u32 val, void __iomem *addr) +void cx18_writel_expect(struct cx18 *cx, u32 val, void __iomem *addr, + u32 eval, u32 mask) { - writel(val, addr); - cx18_io_delay(cx); + int i; + u32 r; + eval &= mask; + for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { + cx18_writel_noretry(cx, val, addr); + r = cx18_readl(cx, addr); + if (r == 0xffffffff && eval != 0xffffffff) + continue; + if (eval == (r & mask)) + break; + } } -void cx18_writel_retry(struct cx18 *cx, u32 val, void __iomem *addr); - -static inline void cx18_writel(struct cx18 *cx, u32 val, void __iomem *addr) +static inline u16 cx18_readw(struct cx18 *cx, const void __iomem *addr) { - if (cx18_retry_mmio) - cx18_writel_retry(cx, val, addr); - else - cx18_writel_noretry(cx, val, addr); + return readw(addr); } -void _cx18_writel_expect(struct cx18 *cx, u32 val, void __iomem *addr, - u32 eval, u32 mask); - static inline void cx18_writew_noretry(struct cx18 *cx, u16 val, void __iomem *addr) { writew(val, addr); - cx18_io_delay(cx); } -void cx18_writew_retry(struct cx18 *cx, u16 val, void __iomem *addr); - static inline void cx18_writew(struct cx18 *cx, u16 val, void __iomem *addr) { - if (cx18_retry_mmio) - cx18_writew_retry(cx, val, addr); - else + int i; + for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { cx18_writew_noretry(cx, val, addr); + if (val == cx18_readw(cx, addr)) + break; + } } +static inline u8 cx18_readb(struct cx18 *cx, const void __iomem *addr) +{ + return readb(addr); +} static inline void cx18_writeb_noretry(struct cx18 *cx, u8 val, void __iomem *addr) { writeb(val, addr); - cx18_io_delay(cx); } -void cx18_writeb_retry(struct cx18 *cx, u8 val, void __iomem *addr); - static inline void cx18_writeb(struct cx18 *cx, u8 val, void __iomem *addr) { - if (cx18_retry_mmio) - cx18_writeb_retry(cx, val, addr); - else + int i; + for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { cx18_writeb_noretry(cx, val, addr); -} - - -static inline u32 cx18_readl_noretry(struct cx18 *cx, const void __iomem *addr) -{ - u32 ret = readl(addr); - cx18_io_delay(cx); - return ret; -} - -u32 cx18_readl_retry(struct cx18 *cx, const void __iomem *addr); - -static inline u32 cx18_readl(struct cx18 *cx, const void __iomem *addr) -{ - if (cx18_retry_mmio) - return cx18_readl_retry(cx, addr); - - return cx18_readl_noretry(cx, addr); -} - - -static inline u16 cx18_readw_noretry(struct cx18 *cx, const void __iomem *addr) -{ - u16 ret = readw(addr); - cx18_io_delay(cx); - return ret; -} - -u16 cx18_readw_retry(struct cx18 *cx, const void __iomem *addr); - -static inline u16 cx18_readw(struct cx18 *cx, const void __iomem *addr) -{ - if (cx18_retry_mmio) - return cx18_readw_retry(cx, addr); - - return cx18_readw_noretry(cx, addr); -} - - -static inline u8 cx18_readb_noretry(struct cx18 *cx, const void __iomem *addr) -{ - u8 ret = readb(addr); - cx18_io_delay(cx); - return ret; -} - -u8 cx18_readb_retry(struct cx18 *cx, const void __iomem *addr); - -static inline u8 cx18_readb(struct cx18 *cx, const void __iomem *addr) -{ - if (cx18_retry_mmio) - return cx18_readb_retry(cx, addr); - - return cx18_readb_noretry(cx, addr); -} - - -static inline -u32 cx18_write_sync_noretry(struct cx18 *cx, u32 val, void __iomem *addr) -{ - cx18_writel_noretry(cx, val, addr); - return cx18_readl_noretry(cx, addr); + if (val == cx18_readb(cx, addr)) + break; + } } static inline -u32 cx18_write_sync_retry(struct cx18 *cx, u32 val, void __iomem *addr) -{ - cx18_writel_retry(cx, val, addr); - return cx18_readl_retry(cx, addr); -} - -static inline u32 cx18_write_sync(struct cx18 *cx, u32 val, void __iomem *addr) +void cx18_memcpy_fromio(struct cx18 *cx, void *to, + const void __iomem *from, unsigned int len) { - if (cx18_retry_mmio) - return cx18_write_sync_retry(cx, val, addr); - - return cx18_write_sync_noretry(cx, val, addr); + memcpy_fromio(to, from, len); } - -void cx18_memcpy_fromio(struct cx18 *cx, void *to, - const void __iomem *from, unsigned int len); void cx18_memset_io(struct cx18 *cx, void __iomem *addr, int val, size_t count); @@ -260,136 +153,39 @@ static inline void cx18_write_reg_noretry(struct cx18 *cx, u32 val, u32 reg) cx18_writel_noretry(cx, val, cx->reg_mem + reg); } -static inline void cx18_write_reg_retry(struct cx18 *cx, u32 val, u32 reg) -{ - cx18_writel_retry(cx, val, cx->reg_mem + reg); -} - static inline void cx18_write_reg(struct cx18 *cx, u32 val, u32 reg) { - if (cx18_retry_mmio) - cx18_write_reg_retry(cx, val, reg); - else - cx18_write_reg_noretry(cx, val, reg); -} - -static inline void _cx18_write_reg_expect(struct cx18 *cx, u32 val, u32 reg, - u32 eval, u32 mask) -{ - _cx18_writel_expect(cx, val, cx->reg_mem + reg, eval, mask); + cx18_writel(cx, val, cx->reg_mem + reg); } static inline void cx18_write_reg_expect(struct cx18 *cx, u32 val, u32 reg, u32 eval, u32 mask) { - if (cx18_retry_mmio) - _cx18_write_reg_expect(cx, val, reg, eval, mask); - else - cx18_write_reg_noretry(cx, val, reg); -} - - -static inline u32 cx18_read_reg_noretry(struct cx18 *cx, u32 reg) -{ - return cx18_readl_noretry(cx, cx->reg_mem + reg); -} - -static inline u32 cx18_read_reg_retry(struct cx18 *cx, u32 reg) -{ - return cx18_readl_retry(cx, cx->reg_mem + reg); + cx18_writel_expect(cx, val, cx->reg_mem + reg, eval, mask); } static inline u32 cx18_read_reg(struct cx18 *cx, u32 reg) { - if (cx18_retry_mmio) - return cx18_read_reg_retry(cx, reg); - - return cx18_read_reg_noretry(cx, reg); -} - - -static inline u32 cx18_write_reg_sync_noretry(struct cx18 *cx, u32 val, u32 reg) -{ - return cx18_write_sync_noretry(cx, val, cx->reg_mem + reg); -} - -static inline u32 cx18_write_reg_sync_retry(struct cx18 *cx, u32 val, u32 reg) -{ - return cx18_write_sync_retry(cx, val, cx->reg_mem + reg); -} - -static inline u32 cx18_write_reg_sync(struct cx18 *cx, u32 val, u32 reg) -{ - if (cx18_retry_mmio) - return cx18_write_reg_sync_retry(cx, val, reg); - - return cx18_write_reg_sync_noretry(cx, val, reg); + return cx18_readl(cx, cx->reg_mem + reg); } /* Access "encoder memory" region of CX23418 memory mapped I/O */ -static inline void cx18_write_enc_noretry(struct cx18 *cx, u32 val, u32 addr) -{ - cx18_writel_noretry(cx, val, cx->enc_mem + addr); -} - -static inline void cx18_write_enc_retry(struct cx18 *cx, u32 val, u32 addr) -{ - cx18_writel_retry(cx, val, cx->enc_mem + addr); -} - static inline void cx18_write_enc(struct cx18 *cx, u32 val, u32 addr) { - if (cx18_retry_mmio) - cx18_write_enc_retry(cx, val, addr); - else - cx18_write_enc_noretry(cx, val, addr); -} - - -static inline u32 cx18_read_enc_noretry(struct cx18 *cx, u32 addr) -{ - return cx18_readl_noretry(cx, cx->enc_mem + addr); -} - -static inline u32 cx18_read_enc_retry(struct cx18 *cx, u32 addr) -{ - return cx18_readl_retry(cx, cx->enc_mem + addr); + cx18_writel(cx, val, cx->enc_mem + addr); } static inline u32 cx18_read_enc(struct cx18 *cx, u32 addr) { - if (cx18_retry_mmio) - return cx18_read_enc_retry(cx, addr); - - return cx18_read_enc_noretry(cx, addr); -} - -static inline -u32 cx18_write_enc_sync_noretry(struct cx18 *cx, u32 val, u32 addr) -{ - return cx18_write_sync_noretry(cx, val, cx->enc_mem + addr); -} - -static inline -u32 cx18_write_enc_sync_retry(struct cx18 *cx, u32 val, u32 addr) -{ - return cx18_write_sync_retry(cx, val, cx->enc_mem + addr); -} - -static inline -u32 cx18_write_enc_sync(struct cx18 *cx, u32 val, u32 addr) -{ - if (cx18_retry_mmio) - return cx18_write_enc_sync_retry(cx, val, addr); - - return cx18_write_enc_sync_noretry(cx, val, addr); + return cx18_readl(cx, cx->enc_mem + addr); } void cx18_sw1_irq_enable(struct cx18 *cx, u32 val); void cx18_sw1_irq_disable(struct cx18 *cx, u32 val); void cx18_sw2_irq_enable(struct cx18 *cx, u32 val); void cx18_sw2_irq_disable(struct cx18 *cx, u32 val); +void cx18_sw2_irq_disable_cpu(struct cx18 *cx, u32 val); void cx18_setup_page(struct cx18 *cx, u32 addr); #endif /* CX18_IO_H */ diff --git a/drivers/media/video/cx18/cx18-ioctl.c b/drivers/media/video/cx18/cx18-ioctl.c index f0ca50f5fdde..e6087486f889 100644 --- a/drivers/media/video/cx18/cx18-ioctl.c +++ b/drivers/media/video/cx18/cx18-ioctl.c @@ -4,6 +4,7 @@ * Derived from ivtv-ioctl.c * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -237,13 +238,12 @@ static int cx18_s_fmt_vbi_cap(struct file *file, void *fh, if (ret) return ret; - if (id->type == CX18_ENC_STREAM_TYPE_VBI && - cx->vbi.sliced_in->service_set && - atomic_read(&cx->ana_capturing) > 0) + if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) return -EBUSY; cx->vbi.sliced_in->service_set = 0; - cx18_av_cmd(cx, VIDIOC_S_FMT, &cx->vbi.in); + cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE; + cx18_av_cmd(cx, VIDIOC_S_FMT, fmt); return cx18_g_fmt_vbi_cap(file, fh, fmt); } @@ -745,14 +745,12 @@ static int cx18_log_status(struct file *file, void *fh) continue; CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", s->name, s->s_flags, - (s->buffers - atomic_read(&s->q_free.buffers)) - * 100 / s->buffers, + atomic_read(&s->q_full.buffers) * 100 / s->buffers, (s->buffers * s->buf_size) / 1024, s->buffers); } CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n", (long long)cx->mpg_data_received, (long long)cx->vbi_data_inserted); - cx18_log_statistics(cx); CX18_INFO("================== END STATUS CARD #%d ==================\n", cx->num); return 0; } diff --git a/drivers/media/video/cx18/cx18-ioctl.h b/drivers/media/video/cx18/cx18-ioctl.h index 2222f679d86d..08fe24e9510e 100644 --- a/drivers/media/video/cx18/cx18-ioctl.h +++ b/drivers/media/video/cx18/cx18-ioctl.h @@ -4,6 +4,7 @@ * Derived from ivtv-ioctl.h * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/media/video/cx18/cx18-irq.c b/drivers/media/video/cx18/cx18-irq.c index 5fbfbd0f1493..af2f504eda2b 100644 --- a/drivers/media/video/cx18/cx18-irq.c +++ b/drivers/media/video/cx18/cx18-irq.c @@ -2,6 +2,7 @@ * cx18 interrupt handling * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -21,132 +22,9 @@ #include "cx18-driver.h" #include "cx18-io.h" -#include "cx18-firmware.h" -#include "cx18-fileops.h" -#include "cx18-queue.h" #include "cx18-irq.h" -#include "cx18-ioctl.h" #include "cx18-mailbox.h" -#include "cx18-vbi.h" #include "cx18-scb.h" -#include "cx18-dvb.h" - -void cx18_work_handler(struct work_struct *work) -{ - struct cx18 *cx = container_of(work, struct cx18, work); - if (test_and_clear_bit(CX18_F_I_WORK_INITED, &cx->i_flags)) { - struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 }; - /* This thread must use the FIFO scheduler as it - * is realtime sensitive. */ - sched_setscheduler(current, SCHED_FIFO, ¶m); - } - if (test_and_clear_bit(CX18_F_I_WORK_HANDLER_DVB, &cx->i_flags)) - cx18_dvb_work_handler(cx); -} - -static void epu_dma_done(struct cx18 *cx, struct cx18_mailbox *mb) -{ - u32 handle = mb->args[0]; - struct cx18_stream *s = NULL; - struct cx18_buffer *buf; - u32 off; - int i; - int id; - - for (i = 0; i < CX18_MAX_STREAMS; i++) { - s = &cx->streams[i]; - if ((handle == s->handle) && (s->dvb.enabled)) - break; - if (s->v4l2dev && handle == s->handle) - break; - } - if (i == CX18_MAX_STREAMS) { - CX18_WARN("Got DMA done notification for unknown/inactive" - " handle %d\n", handle); - mb->error = CXERR_NOT_OPEN; - mb->cmd = 0; - cx18_mb_ack(cx, mb); - return; - } - - off = mb->args[1]; - if (mb->args[2] != 1) - CX18_WARN("Ack struct = %d for %s\n", - mb->args[2], s->name); - id = cx18_read_enc(cx, off); - buf = cx18_queue_get_buf_irq(s, id, cx18_read_enc(cx, off + 4)); - CX18_DEBUG_HI_DMA("DMA DONE for %s (buffer %d)\n", s->name, id); - if (buf) { - cx18_buf_sync_for_cpu(s, buf); - if (s->type == CX18_ENC_STREAM_TYPE_TS && s->dvb.enabled) { - CX18_DEBUG_HI_DMA("TS recv bytesused = %d\n", - buf->bytesused); - - set_bit(CX18_F_I_WORK_HANDLER_DVB, &cx->i_flags); - set_bit(CX18_F_I_HAVE_WORK, &cx->i_flags); - } else - set_bit(CX18_F_B_NEED_BUF_SWAP, &buf->b_flags); - } else { - CX18_WARN("Could not find buf %d for stream %s\n", - cx18_read_enc(cx, off), s->name); - } - mb->error = 0; - mb->cmd = 0; - cx18_mb_ack(cx, mb); - wake_up(&cx->dma_waitq); - if (s->id != -1) - wake_up(&s->waitq); -} - -static void epu_debug(struct cx18 *cx, struct cx18_mailbox *mb) -{ - char str[256] = { 0 }; - char *p; - - if (mb->args[1]) { - cx18_setup_page(cx, mb->args[1]); - cx18_memcpy_fromio(cx, str, cx->enc_mem + mb->args[1], 252); - str[252] = 0; - } - cx18_mb_ack(cx, mb); - CX18_DEBUG_INFO("%x %s\n", mb->args[0], str); - p = strchr(str, '.'); - if (!test_bit(CX18_F_I_LOADED_FW, &cx->i_flags) && p && p > str) - CX18_INFO("FW version: %s\n", p - 1); -} - -static void epu_cmd(struct cx18 *cx, u32 sw1) -{ - struct cx18_mailbox mb; - - if (sw1 & IRQ_CPU_TO_EPU) { - cx18_memcpy_fromio(cx, &mb, &cx->scb->cpu2epu_mb, sizeof(mb)); - mb.error = 0; - - switch (mb.cmd) { - case CX18_EPU_DMA_DONE: - epu_dma_done(cx, &mb); - break; - case CX18_EPU_DEBUG: - epu_debug(cx, &mb); - break; - default: - CX18_WARN("Unknown CPU_TO_EPU mailbox command %#08x\n", - mb.cmd); - break; - } - } - - if (sw1 & IRQ_APU_TO_EPU) { - cx18_memcpy_fromio(cx, &mb, &cx->scb->apu2epu_mb, sizeof(mb)); - CX18_WARN("Unknown APU_TO_EPU mailbox command %#08x\n", mb.cmd); - } - - if (sw1 & IRQ_HPU_TO_EPU) { - cx18_memcpy_fromio(cx, &mb, &cx->scb->hpu2epu_mb, sizeof(mb)); - CX18_WARN("Unknown HPU_TO_EPU mailbox command %#08x\n", mb.cmd); - } -} static void xpu_ack(struct cx18 *cx, u32 sw2) { @@ -154,23 +32,24 @@ static void xpu_ack(struct cx18 *cx, u32 sw2) wake_up(&cx->mb_cpu_waitq); if (sw2 & IRQ_APU_TO_EPU_ACK) wake_up(&cx->mb_apu_waitq); - if (sw2 & IRQ_HPU_TO_EPU_ACK) - wake_up(&cx->mb_hpu_waitq); +} + +static void epu_cmd(struct cx18 *cx, u32 sw1) +{ + if (sw1 & IRQ_CPU_TO_EPU) + cx18_api_epu_cmd_irq(cx, CPU); + if (sw1 & IRQ_APU_TO_EPU) + cx18_api_epu_cmd_irq(cx, APU); } irqreturn_t cx18_irq_handler(int irq, void *dev_id) { struct cx18 *cx = (struct cx18 *)dev_id; - u32 sw1, sw1_mask; - u32 sw2, sw2_mask; - u32 hw2, hw2_mask; + u32 sw1, sw2, hw2; - sw1_mask = cx18_read_reg(cx, SW1_INT_ENABLE_PCI); - sw1 = cx18_read_reg(cx, SW1_INT_STATUS) & sw1_mask; - sw2_mask = cx18_read_reg(cx, SW2_INT_ENABLE_PCI); - sw2 = cx18_read_reg(cx, SW2_INT_STATUS) & sw2_mask; - hw2_mask = cx18_read_reg(cx, HW2_INT_MASK5_PCI); - hw2 = cx18_read_reg(cx, HW2_INT_CLR_STATUS) & hw2_mask; + sw1 = cx18_read_reg(cx, SW1_INT_STATUS) & cx->sw1_irq_mask; + sw2 = cx18_read_reg(cx, SW2_INT_STATUS) & cx->sw2_irq_mask; + hw2 = cx18_read_reg(cx, HW2_INT_CLR_STATUS) & cx->hw2_irq_mask; if (sw1) cx18_write_reg_expect(cx, sw1, SW1_INT_STATUS, ~sw1, sw1); @@ -180,7 +59,15 @@ irqreturn_t cx18_irq_handler(int irq, void *dev_id) cx18_write_reg_expect(cx, hw2, HW2_INT_CLR_STATUS, ~hw2, hw2); if (sw1 || sw2 || hw2) - CX18_DEBUG_HI_IRQ("SW1: %x SW2: %x HW2: %x\n", sw1, sw2, hw2); + CX18_DEBUG_HI_IRQ("received interrupts " + "SW1: %x SW2: %x HW2: %x\n", sw1, sw2, hw2); + + /* + * SW1 responses have to happen first. The sending XPU times out the + * incoming mailboxes on us rather rapidly. + */ + if (sw1) + epu_cmd(cx, sw1); /* To do: interrupt-based I2C handling if (hw2 & (HW2_I2C1_INT|HW2_I2C2_INT)) { @@ -190,11 +77,5 @@ irqreturn_t cx18_irq_handler(int irq, void *dev_id) if (sw2) xpu_ack(cx, sw2); - if (sw1) - epu_cmd(cx, sw1); - - if (test_and_clear_bit(CX18_F_I_HAVE_WORK, &cx->i_flags)) - queue_work(cx->work_queue, &cx->work); - return (sw1 || sw2 || hw2) ? IRQ_HANDLED : IRQ_NONE; } diff --git a/drivers/media/video/cx18/cx18-irq.h b/drivers/media/video/cx18/cx18-irq.h index 6173ca3bc9e4..91f0b5278ef9 100644 --- a/drivers/media/video/cx18/cx18-irq.h +++ b/drivers/media/video/cx18/cx18-irq.h @@ -2,6 +2,7 @@ * cx18 interrupt handling * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -28,8 +29,7 @@ #define SW1_INT_ENABLE_PCI 0xc7311c #define SW2_INT_SET 0xc73140 #define SW2_INT_STATUS 0xc73144 +#define SW2_INT_ENABLE_CPU 0xc73158 #define SW2_INT_ENABLE_PCI 0xc7315c irqreturn_t cx18_irq_handler(int irq, void *dev_id); - -void cx18_work_handler(struct work_struct *work); diff --git a/drivers/media/video/cx18/cx18-mailbox.c b/drivers/media/video/cx18/cx18-mailbox.c index acff7dfb60df..de5e723fdf44 100644 --- a/drivers/media/video/cx18/cx18-mailbox.c +++ b/drivers/media/video/cx18/cx18-mailbox.c @@ -2,6 +2,7 @@ * cx18 mailbox functions * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -26,15 +27,14 @@ #include "cx18-scb.h" #include "cx18-irq.h" #include "cx18-mailbox.h" +#include "cx18-queue.h" +#include "cx18-streams.h" + +static const char *rpu_str[] = { "APU", "CPU", "EPU", "HPU" }; #define API_FAST (1 << 2) /* Short timeout */ #define API_SLOW (1 << 3) /* Additional 300ms timeout */ -#define APU 0 -#define CPU 1 -#define EPU 2 -#define HPU 3 - struct cx18_api_info { u32 cmd; u8 flags; /* Flags, see above */ @@ -82,8 +82,9 @@ static const struct cx18_api_info api_info[] = { API_ENTRY(CPU, CX18_CPU_GET_ENC_PTS, 0), API_ENTRY(CPU, CX18_CPU_DE_SET_MDL_ACK, 0), API_ENTRY(CPU, CX18_CPU_DE_SET_MDL, API_FAST), - API_ENTRY(CPU, CX18_APU_RESETAI, API_FAST), API_ENTRY(CPU, CX18_CPU_DE_RELEASE_MDL, API_SLOW), + API_ENTRY(APU, CX18_APU_RESETAI, 0), + API_ENTRY(CPU, CX18_CPU_DEBUG_PEEK32, 0), API_ENTRY(0, 0, 0), }; @@ -97,70 +98,175 @@ static const struct cx18_api_info *find_api_info(u32 cmd) return NULL; } -static struct cx18_mailbox __iomem *cx18_mb_is_complete(struct cx18 *cx, int rpu, - u32 *state, u32 *irq, u32 *req) +static void dump_mb(struct cx18 *cx, struct cx18_mailbox *mb, char *name) { - struct cx18_mailbox __iomem *mb = NULL; - int wait_count = 0; - u32 ack; - - switch (rpu) { - case APU: - mb = &cx->scb->epu2apu_mb; - *state = cx18_readl(cx, &cx->scb->apu_state); - *irq = cx18_readl(cx, &cx->scb->epu2apu_irq); - break; + char argstr[MAX_MB_ARGUMENTS*11+1]; + char *p; + int i; - case CPU: - mb = &cx->scb->epu2cpu_mb; - *state = cx18_readl(cx, &cx->scb->cpu_state); - *irq = cx18_readl(cx, &cx->scb->epu2cpu_irq); - break; + if (!(cx18_debug & CX18_DBGFLG_API)) + return; - case HPU: - mb = &cx->scb->epu2hpu_mb; - *state = cx18_readl(cx, &cx->scb->hpu_state); - *irq = cx18_readl(cx, &cx->scb->epu2hpu_irq); - break; + for (i = 0, p = argstr; i < MAX_MB_ARGUMENTS; i++, p += 11) { + /* kernel snprintf() appends '\0' always */ + snprintf(p, 12, " %#010x", mb->args[i]); } + CX18_DEBUG_API("%s: req %#010x ack %#010x cmd %#010x err %#010x args%s" + "\n", name, mb->request, mb->ack, mb->cmd, mb->error, argstr); +} - if (mb == NULL) - return mb; - do { - *req = cx18_readl(cx, &mb->request); - ack = cx18_readl(cx, &mb->ack); - wait_count++; - } while (*req != ack && wait_count < 600); +/* + * Functions that run in a work_queue work handling context + */ - if (*req == ack) { - (*req)++; - if (*req == 0 || *req == 0xffffffff) - *req = 1; - return mb; +static void epu_dma_done(struct cx18 *cx, struct cx18_epu_work_order *order) +{ + u32 handle, mdl_ack_count, id; + struct cx18_mailbox *mb; + struct cx18_mdl_ack *mdl_ack; + struct cx18_stream *s; + struct cx18_buffer *buf; + int i; + + mb = &order->mb; + handle = mb->args[0]; + s = cx18_handle_to_stream(cx, handle); + + if (s == NULL) { + CX18_WARN("Got DMA done notification for unknown/inactive" + " handle %d, %s mailbox seq no %d\n", handle, + (order->flags & CX18_F_EWO_MB_STALE_UPON_RECEIPT) ? + "stale" : "good", mb->request); + return; } - return NULL; + + mdl_ack_count = mb->args[2]; + mdl_ack = order->mdl_ack; + for (i = 0; i < mdl_ack_count; i++, mdl_ack++) { + id = mdl_ack->id; + /* + * Simple integrity check for processing a stale (and possibly + * inconsistent mailbox): make sure the buffer id is in the + * valid range for the stream. + * + * We go through the trouble of dealing with stale mailboxes + * because most of the time, the mailbox data is still valid and + * unchanged (and in practice the firmware ping-pongs the + * two mdl_ack buffers so mdl_acks are not stale). + * + * There are occasions when we get a half changed mailbox, + * which this check catches for a handle & id mismatch. If the + * handle and id do correspond, the worst case is that we + * completely lost the old buffer, but pick up the new buffer + * early (but the new mdl_ack is guaranteed to be good in this + * case as the firmware wouldn't point us to a new mdl_ack until + * it's filled in). + * + * cx18_queue_get buf() will detect the lost buffers + * and send them back to q_free for fw rotation eventually. + */ + if ((order->flags & CX18_F_EWO_MB_STALE_UPON_RECEIPT) && + !(id >= s->mdl_offset && + id < (s->mdl_offset + s->buffers))) { + CX18_WARN("Fell behind! Ignoring stale mailbox with " + " inconsistent data. Lost buffer for mailbox " + "seq no %d\n", mb->request); + break; + } + buf = cx18_queue_get_buf(s, id, mdl_ack->data_used); + + CX18_DEBUG_HI_DMA("DMA DONE for %s (buffer %d)\n", s->name, id); + if (buf == NULL) { + CX18_WARN("Could not find buf %d for stream %s\n", + id, s->name); + /* Put as many buffers as possible back into fw use */ + cx18_stream_load_fw_queue(s); + continue; + } + + if (s->type == CX18_ENC_STREAM_TYPE_TS && s->dvb.enabled) { + CX18_DEBUG_HI_DMA("TS recv bytesused = %d\n", + buf->bytesused); + dvb_dmx_swfilter(&s->dvb.demux, buf->buf, + buf->bytesused); + } + /* Put as many buffers as possible back into fw use */ + cx18_stream_load_fw_queue(s); + /* Put back TS buffer, since it was removed from all queues */ + if (s->type == CX18_ENC_STREAM_TYPE_TS) + cx18_stream_put_buf_fw(s, buf); + } + wake_up(&cx->dma_waitq); + if (s->id != -1) + wake_up(&s->waitq); } -long cx18_mb_ack(struct cx18 *cx, const struct cx18_mailbox *mb) +static void epu_debug(struct cx18 *cx, struct cx18_epu_work_order *order) { - const struct cx18_api_info *info = find_api_info(mb->cmd); - struct cx18_mailbox __iomem *ack_mb; - u32 ack_irq; - u8 rpu = CPU; + char *p; + char *str = order->str; - if (info == NULL && mb->cmd) { - CX18_WARN("Cannot ack unknown command %x\n", mb->cmd); - return -EINVAL; - } - if (info) - rpu = info->rpu; + CX18_DEBUG_INFO("%x %s\n", order->mb.args[0], str); + p = strchr(str, '.'); + if (!test_bit(CX18_F_I_LOADED_FW, &cx->i_flags) && p && p > str) + CX18_INFO("FW version: %s\n", p - 1); +} - switch (rpu) { - case HPU: - ack_irq = IRQ_EPU_TO_HPU_ACK; - ack_mb = &cx->scb->hpu2epu_mb; +static void epu_cmd(struct cx18 *cx, struct cx18_epu_work_order *order) +{ + switch (order->rpu) { + case CPU: + { + switch (order->mb.cmd) { + case CX18_EPU_DMA_DONE: + epu_dma_done(cx, order); + break; + case CX18_EPU_DEBUG: + epu_debug(cx, order); + break; + default: + CX18_WARN("Unknown CPU to EPU mailbox command %#0x\n", + order->mb.cmd); + break; + } break; + } + case APU: + CX18_WARN("Unknown APU to EPU mailbox command %#0x\n", + order->mb.cmd); + break; + default: + break; + } +} + +static +void free_epu_work_order(struct cx18 *cx, struct cx18_epu_work_order *order) +{ + atomic_set(&order->pending, 0); +} + +void cx18_epu_work_handler(struct work_struct *work) +{ + struct cx18_epu_work_order *order = + container_of(work, struct cx18_epu_work_order, work); + struct cx18 *cx = order->cx; + epu_cmd(cx, order); + free_epu_work_order(cx, order); +} + + +/* + * Functions that run in an interrupt handling context + */ + +static void mb_ack_irq(struct cx18 *cx, struct cx18_epu_work_order *order) +{ + struct cx18_mailbox __iomem *ack_mb; + u32 ack_irq, req; + + switch (order->rpu) { case APU: ack_irq = IRQ_EPU_TO_APU_ACK; ack_mb = &cx->scb->apu2epu_mb; @@ -170,26 +276,197 @@ long cx18_mb_ack(struct cx18 *cx, const struct cx18_mailbox *mb) ack_mb = &cx->scb->cpu2epu_mb; break; default: - CX18_WARN("Unknown RPU for command %x\n", mb->cmd); - return -EINVAL; + CX18_WARN("Unhandled RPU (%d) for command %x ack\n", + order->rpu, order->mb.cmd); + return; } - cx18_setup_page(cx, SCB_OFFSET); - cx18_write_sync(cx, mb->request, &ack_mb->ack); + req = order->mb.request; + /* Don't ack if the RPU has gotten impatient and timed us out */ + if (req != cx18_readl(cx, &ack_mb->request) || + req == cx18_readl(cx, &ack_mb->ack)) { + CX18_DEBUG_WARN("Possibly falling behind: %s self-ack'ed our " + "incoming %s to EPU mailbox (sequence no. %u) " + "while processing\n", + rpu_str[order->rpu], rpu_str[order->rpu], req); + order->flags |= CX18_F_EWO_MB_STALE_WHILE_PROC; + return; + } + cx18_writel(cx, req, &ack_mb->ack); cx18_write_reg_expect(cx, ack_irq, SW2_INT_SET, ack_irq, ack_irq); - return 0; + return; +} + +static int epu_dma_done_irq(struct cx18 *cx, struct cx18_epu_work_order *order) +{ + u32 handle, mdl_ack_offset, mdl_ack_count; + struct cx18_mailbox *mb; + + mb = &order->mb; + handle = mb->args[0]; + mdl_ack_offset = mb->args[1]; + mdl_ack_count = mb->args[2]; + + if (handle == CX18_INVALID_TASK_HANDLE || + mdl_ack_count == 0 || mdl_ack_count > CX18_MAX_MDL_ACKS) { + if ((order->flags & CX18_F_EWO_MB_STALE) == 0) + mb_ack_irq(cx, order); + return -1; + } + + cx18_memcpy_fromio(cx, order->mdl_ack, cx->enc_mem + mdl_ack_offset, + sizeof(struct cx18_mdl_ack) * mdl_ack_count); + + if ((order->flags & CX18_F_EWO_MB_STALE) == 0) + mb_ack_irq(cx, order); + return 1; +} + +static +int epu_debug_irq(struct cx18 *cx, struct cx18_epu_work_order *order) +{ + u32 str_offset; + char *str = order->str; + + str[0] = '\0'; + str_offset = order->mb.args[1]; + if (str_offset) { + cx18_setup_page(cx, str_offset); + cx18_memcpy_fromio(cx, str, cx->enc_mem + str_offset, 252); + str[252] = '\0'; + cx18_setup_page(cx, SCB_OFFSET); + } + + if ((order->flags & CX18_F_EWO_MB_STALE) == 0) + mb_ack_irq(cx, order); + + return str_offset ? 1 : 0; } +static inline +int epu_cmd_irq(struct cx18 *cx, struct cx18_epu_work_order *order) +{ + int ret = -1; + + switch (order->rpu) { + case CPU: + { + switch (order->mb.cmd) { + case CX18_EPU_DMA_DONE: + ret = epu_dma_done_irq(cx, order); + break; + case CX18_EPU_DEBUG: + ret = epu_debug_irq(cx, order); + break; + default: + CX18_WARN("Unknown CPU to EPU mailbox command %#0x\n", + order->mb.cmd); + break; + } + break; + } + case APU: + CX18_WARN("Unknown APU to EPU mailbox command %#0x\n", + order->mb.cmd); + break; + default: + break; + } + return ret; +} + +static inline +struct cx18_epu_work_order *alloc_epu_work_order_irq(struct cx18 *cx) +{ + int i; + struct cx18_epu_work_order *order = NULL; + + for (i = 0; i < CX18_MAX_EPU_WORK_ORDERS; i++) { + /* + * We only need "pending" atomic to inspect its contents, + * and need not do a check and set because: + * 1. Any work handler thread only clears "pending" and only + * on one, particular work order at a time, per handler thread. + * 2. "pending" is only set here, and we're serialized because + * we're called in an IRQ handler context. + */ + if (atomic_read(&cx->epu_work_order[i].pending) == 0) { + order = &cx->epu_work_order[i]; + atomic_set(&order->pending, 1); + break; + } + } + return order; +} + +void cx18_api_epu_cmd_irq(struct cx18 *cx, int rpu) +{ + struct cx18_mailbox __iomem *mb; + struct cx18_mailbox *order_mb; + struct cx18_epu_work_order *order; + int submit; + + switch (rpu) { + case CPU: + mb = &cx->scb->cpu2epu_mb; + break; + case APU: + mb = &cx->scb->apu2epu_mb; + break; + default: + return; + } + + order = alloc_epu_work_order_irq(cx); + if (order == NULL) { + CX18_WARN("Unable to find blank work order form to schedule " + "incoming mailbox command processing\n"); + return; + } + + order->flags = 0; + order->rpu = rpu; + order_mb = &order->mb; + + /* mb->cmd and mb->args[0] through mb->args[2] */ + cx18_memcpy_fromio(cx, &order_mb->cmd, &mb->cmd, 4 * sizeof(u32)); + /* mb->request and mb->ack. N.B. we want to read mb->ack last */ + cx18_memcpy_fromio(cx, &order_mb->request, &mb->request, + 2 * sizeof(u32)); + + if (order_mb->request == order_mb->ack) { + CX18_DEBUG_WARN("Possibly falling behind: %s self-ack'ed our " + "incoming %s to EPU mailbox (sequence no. %u)" + "\n", + rpu_str[rpu], rpu_str[rpu], order_mb->request); + dump_mb(cx, order_mb, "incoming"); + order->flags = CX18_F_EWO_MB_STALE_UPON_RECEIPT; + } + + /* + * Individual EPU command processing is responsible for ack-ing + * a non-stale mailbox as soon as possible + */ + submit = epu_cmd_irq(cx, order); + if (submit > 0) { + queue_work(cx->work_queue, &order->work); + } +} + + +/* + * Functions called from a non-interrupt, non work_queue context + */ static int cx18_api_call(struct cx18 *cx, u32 cmd, int args, u32 data[]) { const struct cx18_api_info *info = find_api_info(cmd); - u32 state = 0, irq = 0, req, oldreq, err; + u32 state, irq, req, ack, err; struct cx18_mailbox __iomem *mb; + u32 __iomem *xpu_state; wait_queue_head_t *waitq; - int timeout = 100; - int cnt = 0; - int sig = 0; + struct mutex *mb_lock; + long int timeout, ret; int i; if (info == NULL) { @@ -201,50 +478,104 @@ static int cx18_api_call(struct cx18 *cx, u32 cmd, int args, u32 data[]) CX18_DEBUG_HI_API("%s\n", info->name); else CX18_DEBUG_API("%s\n", info->name); - cx18_setup_page(cx, SCB_OFFSET); - mb = cx18_mb_is_complete(cx, info->rpu, &state, &irq, &req); - if (mb == NULL) { - CX18_ERR("mb %s busy\n", info->name); - return -EBUSY; + switch (info->rpu) { + case APU: + waitq = &cx->mb_apu_waitq; + mb_lock = &cx->epu2apu_mb_lock; + irq = IRQ_EPU_TO_APU; + mb = &cx->scb->epu2apu_mb; + xpu_state = &cx->scb->apu_state; + break; + case CPU: + waitq = &cx->mb_cpu_waitq; + mb_lock = &cx->epu2cpu_mb_lock; + irq = IRQ_EPU_TO_CPU; + mb = &cx->scb->epu2cpu_mb; + xpu_state = &cx->scb->cpu_state; + break; + default: + CX18_WARN("Unknown RPU (%d) for API call\n", info->rpu); + return -EINVAL; } - oldreq = req - 1; + mutex_lock(mb_lock); + /* + * Wait for an in-use mailbox to complete + * + * If the XPU is responding with Ack's, the mailbox shouldn't be in + * a busy state, since we serialize access to it on our end. + * + * If the wait for ack after sending a previous command was interrupted + * by a signal, we may get here and find a busy mailbox. After waiting, + * mark it "not busy" from our end, if the XPU hasn't ack'ed it still. + */ + state = cx18_readl(cx, xpu_state); + req = cx18_readl(cx, &mb->request); + timeout = msecs_to_jiffies(10); + ret = wait_event_timeout(*waitq, + (ack = cx18_readl(cx, &mb->ack)) == req, + timeout); + if (req != ack) { + /* waited long enough, make the mbox "not busy" from our end */ + cx18_writel(cx, req, &mb->ack); + CX18_ERR("mbox was found stuck busy when setting up for %s; " + "clearing busy and trying to proceed\n", info->name); + } else if (ret != timeout) + CX18_DEBUG_API("waited %u msecs for busy mbox to be acked\n", + jiffies_to_msecs(timeout-ret)); + + /* Build the outgoing mailbox */ + req = ((req & 0xfffffffe) == 0xfffffffe) ? 1 : req + 1; + cx18_writel(cx, cmd, &mb->cmd); for (i = 0; i < args; i++) cx18_writel(cx, data[i], &mb->args[i]); cx18_writel(cx, 0, &mb->error); cx18_writel(cx, req, &mb->request); + cx18_writel(cx, req - 1, &mb->ack); /* ensure ack & req are distinct */ - switch (info->rpu) { - case APU: waitq = &cx->mb_apu_waitq; break; - case CPU: waitq = &cx->mb_cpu_waitq; break; - case EPU: waitq = &cx->mb_epu_waitq; break; - case HPU: waitq = &cx->mb_hpu_waitq; break; - default: return -EINVAL; - } - if (info->flags & API_FAST) - timeout /= 2; + /* + * Notify the XPU and wait for it to send an Ack back + */ + timeout = msecs_to_jiffies((info->flags & API_FAST) ? 10 : 20); + + CX18_DEBUG_HI_IRQ("sending interrupt SW1: %x to send %s\n", + irq, info->name); cx18_write_reg_expect(cx, irq, SW1_INT_SET, irq, irq); - while (!sig && cx18_readl(cx, &mb->ack) != cx18_readl(cx, &mb->request) - && cnt < 660) { - if (cnt > 200 && !in_atomic()) - sig = cx18_msleep_timeout(10, 1); - cnt++; - } - if (sig) - return -EINTR; - if (cnt == 660) { - cx18_writel(cx, oldreq, &mb->request); - CX18_ERR("mb %s failed\n", info->name); + ret = wait_event_timeout( + *waitq, + cx18_readl(cx, &mb->ack) == cx18_readl(cx, &mb->request), + timeout); + + if (ret == 0) { + /* Timed out */ + mutex_unlock(mb_lock); + CX18_DEBUG_WARN("sending %s timed out waiting %d msecs for RPU " + "acknowledgement\n", + info->name, jiffies_to_msecs(timeout)); return -EINVAL; } + + if (ret != timeout) + CX18_DEBUG_HI_API("waited %u msecs for %s to be acked\n", + jiffies_to_msecs(timeout-ret), info->name); + + /* Collect data returned by the XPU */ for (i = 0; i < MAX_MB_ARGUMENTS; i++) data[i] = cx18_readl(cx, &mb->args[i]); err = cx18_readl(cx, &mb->error); - if (!in_atomic() && (info->flags & API_SLOW)) + mutex_unlock(mb_lock); + + /* + * Wait for XPU to perform extra actions for the caller in some cases. + * e.g. CX18_CPU_DE_RELEASE_MDL will cause the CPU to send all buffers + * back in a burst shortly thereafter + */ + if (info->flags & API_SLOW) cx18_msleep_timeout(300, 0); + if (err) CX18_DEBUG_API("mailbox error %08x for command %s\n", err, info->name); @@ -253,12 +584,7 @@ static int cx18_api_call(struct cx18 *cx, u32 cmd, int args, u32 data[]) int cx18_api(struct cx18 *cx, u32 cmd, int args, u32 data[]) { - int res = cx18_api_call(cx, cmd, args, data); - - /* Allow a single retry, probably already too late though. - If there is no free mailbox then that is usually an indication - of a more serious problem. */ - return (res == -EBUSY) ? cx18_api_call(cx, cmd, args, data) : res; + return cx18_api_call(cx, cmd, args, data); } static int cx18_set_filter_param(struct cx18_stream *s) @@ -281,8 +607,9 @@ static int cx18_set_filter_param(struct cx18_stream *s) int cx18_api_func(void *priv, u32 cmd, int in, int out, u32 data[CX2341X_MBOX_MAX_DATA]) { - struct cx18 *cx = priv; - struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_MPG]; + struct cx18_api_func_private *api_priv = priv; + struct cx18 *cx = api_priv->cx; + struct cx18_stream *s = api_priv->s; switch (cmd) { case CX2341X_ENC_SET_OUTPUT_PORT: diff --git a/drivers/media/video/cx18/cx18-mailbox.h b/drivers/media/video/cx18/cx18-mailbox.h index d995641536b3..ce2b6686aa00 100644 --- a/drivers/media/video/cx18/cx18-mailbox.h +++ b/drivers/media/video/cx18/cx18-mailbox.h @@ -2,6 +2,7 @@ * cx18 mailbox functions * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -30,8 +31,24 @@ #define MB_RESERVED_HANDLE_0 0 #define MB_RESERVED_HANDLE_1 0xFFFFFFFF +#define APU 0 +#define CPU 1 +#define EPU 2 +#define HPU 3 + struct cx18; +/* + * This structure is used by CPU to provide completed buffers information + * Its structure is dictrated by the layout of the SCB, required by the + * firmware, but its defintion needs to be here, instead of in cx18-scb.h, + * for mailbox work order scheduling + */ +struct cx18_mdl_ack { + u32 id; /* ID of a completed MDL */ + u32 data_used; /* Total data filled in the MDL for buffer 'id' */ +}; + /* The cx18_mailbox struct is the mailbox structure which is used for passing messages between processors */ struct cx18_mailbox { @@ -62,12 +79,22 @@ struct cx18_mailbox { u32 error; }; +struct cx18_stream; + +struct cx18_api_func_private { + struct cx18 *cx; + struct cx18_stream *s; +}; + int cx18_api(struct cx18 *cx, u32 cmd, int args, u32 data[]); int cx18_vapi_result(struct cx18 *cx, u32 data[MAX_MB_ARGUMENTS], u32 cmd, int args, ...); int cx18_vapi(struct cx18 *cx, u32 cmd, int args, ...); int cx18_api_func(void *priv, u32 cmd, int in, int out, u32 data[CX2341X_MBOX_MAX_DATA]); -long cx18_mb_ack(struct cx18 *cx, const struct cx18_mailbox *mb); + +void cx18_api_epu_cmd_irq(struct cx18 *cx, int rpu); + +void cx18_epu_work_handler(struct work_struct *work); #endif diff --git a/drivers/media/video/cx18/cx18-queue.c b/drivers/media/video/cx18/cx18-queue.c index 174682c2582f..8d9441e88c4e 100644 --- a/drivers/media/video/cx18/cx18-queue.c +++ b/drivers/media/video/cx18/cx18-queue.c @@ -4,6 +4,7 @@ * Derived from ivtv-queue.c * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -41,91 +42,126 @@ void cx18_queue_init(struct cx18_queue *q) q->bytesused = 0; } -void cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, - struct cx18_queue *q) +struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, + struct cx18_queue *q, int to_front) { - unsigned long flags = 0; - - /* clear the buffer if it is going to be enqueued to the free queue */ - if (q == &s->q_free) { + /* clear the buffer if it is not to be enqueued to the full queue */ + if (q != &s->q_full) { buf->bytesused = 0; buf->readpos = 0; buf->b_flags = 0; + buf->skipped = 0; } - spin_lock_irqsave(&s->qlock, flags); - list_add_tail(&buf->list, &q->list); - atomic_inc(&q->buffers); + + mutex_lock(&s->qlock); + + /* q_busy is restricted to a max buffer count imposed by firmware */ + if (q == &s->q_busy && + atomic_read(&q->buffers) >= CX18_MAX_FW_MDLS_PER_STREAM) + q = &s->q_free; + + if (to_front) + list_add(&buf->list, &q->list); /* LIFO */ + else + list_add_tail(&buf->list, &q->list); /* FIFO */ q->bytesused += buf->bytesused - buf->readpos; - spin_unlock_irqrestore(&s->qlock, flags); + atomic_inc(&q->buffers); + + mutex_unlock(&s->qlock); + return q; } struct cx18_buffer *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q) { struct cx18_buffer *buf = NULL; - unsigned long flags = 0; - spin_lock_irqsave(&s->qlock, flags); + mutex_lock(&s->qlock); if (!list_empty(&q->list)) { - buf = list_entry(q->list.next, struct cx18_buffer, list); - list_del_init(q->list.next); - atomic_dec(&q->buffers); + buf = list_first_entry(&q->list, struct cx18_buffer, list); + list_del_init(&buf->list); q->bytesused -= buf->bytesused - buf->readpos; + buf->skipped = 0; + atomic_dec(&q->buffers); } - spin_unlock_irqrestore(&s->qlock, flags); + mutex_unlock(&s->qlock); return buf; } -struct cx18_buffer *cx18_queue_get_buf_irq(struct cx18_stream *s, u32 id, +struct cx18_buffer *cx18_queue_get_buf(struct cx18_stream *s, u32 id, u32 bytesused) { struct cx18 *cx = s->cx; - struct list_head *p; - - spin_lock(&s->qlock); - list_for_each(p, &s->q_free.list) { - struct cx18_buffer *buf = - list_entry(p, struct cx18_buffer, list); - - if (buf->id != id) + struct cx18_buffer *buf; + struct cx18_buffer *tmp; + struct cx18_buffer *ret = NULL; + + mutex_lock(&s->qlock); + list_for_each_entry_safe(buf, tmp, &s->q_busy.list, list) { + if (buf->id != id) { + buf->skipped++; + if (buf->skipped >= atomic_read(&s->q_busy.buffers)-1) { + /* buffer must have fallen out of rotation */ + CX18_WARN("Skipped %s, buffer %d, %d " + "times - it must have dropped out of " + "rotation\n", s->name, buf->id, + buf->skipped); + /* move it to q_free */ + list_move_tail(&buf->list, &s->q_free.list); + buf->bytesused = buf->readpos = buf->b_flags = + buf->skipped = 0; + atomic_dec(&s->q_busy.buffers); + atomic_inc(&s->q_free.buffers); + } continue; + } buf->bytesused = bytesused; - atomic_dec(&s->q_free.buffers); - atomic_inc(&s->q_full.buffers); - s->q_full.bytesused += buf->bytesused; - list_move_tail(&buf->list, &s->q_full.list); + /* Sync the buffer before we release the qlock */ + cx18_buf_sync_for_cpu(s, buf); + if (s->type == CX18_ENC_STREAM_TYPE_TS) { + /* + * TS doesn't use q_full. As we pull the buffer off of + * the queue here, the caller will have to put it back. + */ + list_del_init(&buf->list); + } else { + /* Move buffer from q_busy to q_full */ + list_move_tail(&buf->list, &s->q_full.list); + set_bit(CX18_F_B_NEED_BUF_SWAP, &buf->b_flags); + s->q_full.bytesused += buf->bytesused; + atomic_inc(&s->q_full.buffers); + } + atomic_dec(&s->q_busy.buffers); - spin_unlock(&s->qlock); - return buf; + ret = buf; + break; } - spin_unlock(&s->qlock); - CX18_ERR("Cannot find buffer %d for stream %s\n", id, s->name); - return NULL; + mutex_unlock(&s->qlock); + return ret; } /* Move all buffers of a queue to q_free, while flushing the buffers */ static void cx18_queue_flush(struct cx18_stream *s, struct cx18_queue *q) { - unsigned long flags; struct cx18_buffer *buf; if (q == &s->q_free) return; - spin_lock_irqsave(&s->qlock, flags); + mutex_lock(&s->qlock); while (!list_empty(&q->list)) { - buf = list_entry(q->list.next, struct cx18_buffer, list); - list_move_tail(q->list.next, &s->q_free.list); - buf->bytesused = buf->readpos = buf->b_flags = 0; + buf = list_first_entry(&q->list, struct cx18_buffer, list); + list_move_tail(&buf->list, &s->q_free.list); + buf->bytesused = buf->readpos = buf->b_flags = buf->skipped = 0; atomic_inc(&s->q_free.buffers); } cx18_queue_init(q); - spin_unlock_irqrestore(&s->qlock, flags); + mutex_unlock(&s->qlock); } void cx18_flush_queues(struct cx18_stream *s) { - cx18_queue_flush(s, &s->q_io); + cx18_queue_flush(s, &s->q_busy); cx18_queue_flush(s, &s->q_full); } diff --git a/drivers/media/video/cx18/cx18-queue.h b/drivers/media/video/cx18/cx18-queue.h index 7f93bb13c09f..456cec3bc28f 100644 --- a/drivers/media/video/cx18/cx18-queue.h +++ b/drivers/media/video/cx18/cx18-queue.h @@ -4,6 +4,7 @@ * Derived from ivtv-queue.h * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -42,11 +43,26 @@ static inline void cx18_buf_sync_for_device(struct cx18_stream *s, void cx18_buf_swap(struct cx18_buffer *buf); /* cx18_queue utility functions */ +struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, + struct cx18_queue *q, int to_front); + +static inline +struct cx18_queue *cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, + struct cx18_queue *q) +{ + return _cx18_enqueue(s, buf, q, 0); /* FIFO */ +} + +static inline +struct cx18_queue *cx18_push(struct cx18_stream *s, struct cx18_buffer *buf, + struct cx18_queue *q) +{ + return _cx18_enqueue(s, buf, q, 1); /* LIFO */ +} + void cx18_queue_init(struct cx18_queue *q); -void cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, - struct cx18_queue *q); struct cx18_buffer *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q); -struct cx18_buffer *cx18_queue_get_buf_irq(struct cx18_stream *s, u32 id, +struct cx18_buffer *cx18_queue_get_buf(struct cx18_stream *s, u32 id, u32 bytesused); void cx18_flush_queues(struct cx18_stream *s); diff --git a/drivers/media/video/cx18/cx18-scb.c b/drivers/media/video/cx18/cx18-scb.c index f56d3772aa67..34b4d03c55cd 100644 --- a/drivers/media/video/cx18/cx18-scb.c +++ b/drivers/media/video/cx18/cx18-scb.c @@ -2,6 +2,7 @@ * cx18 System Control Block initialization * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -117,6 +118,5 @@ void cx18_init_scb(struct cx18 *cx) cx18_writel(cx, SCB_OFFSET + offsetof(struct cx18_scb, cpu_state), &cx->scb->ipc_offset); - cx18_writel(cx, 1, &cx->scb->hpu_state); cx18_writel(cx, 1, &cx->scb->epu_state); } diff --git a/drivers/media/video/cx18/cx18-scb.h b/drivers/media/video/cx18/cx18-scb.h index 594713bbed68..1dc1c431f5a1 100644 --- a/drivers/media/video/cx18/cx18-scb.h +++ b/drivers/media/video/cx18/cx18-scb.h @@ -2,6 +2,7 @@ * cx18 System Control Block initialization * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -85,12 +86,6 @@ struct cx18_mdl { u32 length; /* Length of the buffer segment */ }; -/* This structure is used by CPU to provide completed buffers information */ -struct cx18_mdl_ack { - u32 id; /* ID of a completed MDL */ - u32 data_used; /* Total data filled in the MDL for buffer 'id' */ -}; - struct cx18_scb { /* These fields form the System Control Block which is used at boot time for localizing the IPC data as well as the code positions for all @@ -276,7 +271,7 @@ struct cx18_scb { struct cx18_mailbox hpu2epu_mb; struct cx18_mailbox ppu2epu_mb; - struct cx18_mdl_ack cpu_mdl_ack[CX18_MAX_STREAMS][2]; + struct cx18_mdl_ack cpu_mdl_ack[CX18_MAX_STREAMS][CX18_MAX_MDL_ACKS]; struct cx18_mdl cpu_mdl[1]; }; diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c index e5ff7705b7a1..63c336c95ff5 100644 --- a/drivers/media/video/cx18/cx18-streams.c +++ b/drivers/media/video/cx18/cx18-streams.c @@ -4,6 +4,7 @@ * Derived from ivtv-streams.c * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -110,7 +111,6 @@ static void cx18_stream_init(struct cx18 *cx, int type) { struct cx18_stream *s = &cx->streams[type]; struct video_device *dev = s->v4l2dev; - u32 max_size = cx->options.megabytes[type] * 1024 * 1024; /* we need to keep v4l2dev, so restore it afterwards */ memset(s, 0, sizeof(*s)); @@ -123,21 +123,15 @@ static void cx18_stream_init(struct cx18 *cx, int type) s->handle = CX18_INVALID_TASK_HANDLE; s->dma = cx18_stream_info[type].dma; + s->buffers = cx->stream_buffers[type]; s->buf_size = cx->stream_buf_size[type]; - if (s->buf_size) - s->buffers = max_size / s->buf_size; - if (s->buffers > 63) { - /* Each stream has a maximum of 63 buffers, - ensure we do not exceed that. */ - s->buffers = 63; - s->buf_size = (max_size / s->buffers) & ~0xfff; - } - spin_lock_init(&s->qlock); + + mutex_init(&s->qlock); init_waitqueue_head(&s->waitq); s->id = -1; cx18_queue_init(&s->q_free); + cx18_queue_init(&s->q_busy); cx18_queue_init(&s->q_full); - cx18_queue_init(&s->q_io); } static int cx18_prep_dev(struct cx18 *cx, int type) @@ -167,7 +161,7 @@ static int cx18_prep_dev(struct cx18 *cx, int type) /* User explicitly selected 0 buffers for these streams, so don't create them. */ if (cx18_stream_info[type].dma != PCI_DMA_NONE && - cx->options.megabytes[type] == 0) { + cx->stream_buffers[type] == 0) { CX18_INFO("Disabled %s device\n", cx18_stream_info[type].name); return 0; } @@ -267,8 +261,9 @@ static int cx18_reg_dev(struct cx18 *cx, int type) switch (vfl_type) { case VFL_TYPE_GRABBER: - CX18_INFO("Registered device video%d for %s (%d MB)\n", - num, s->name, cx->options.megabytes[type]); + CX18_INFO("Registered device video%d for %s (%d x %d kB)\n", + num, s->name, cx->stream_buffers[type], + cx->stream_buf_size[type]/1024); break; case VFL_TYPE_RADIO: @@ -277,10 +272,11 @@ static int cx18_reg_dev(struct cx18 *cx, int type) break; case VFL_TYPE_VBI: - if (cx->options.megabytes[type]) - CX18_INFO("Registered device vbi%d for %s (%d MB)\n", - num, - s->name, cx->options.megabytes[type]); + if (cx->stream_buffers[type]) + CX18_INFO("Registered device vbi%d for %s " + "(%d x %d bytes)\n", + num, s->name, cx->stream_buffers[type], + cx->stream_buf_size[type]); else CX18_INFO("Registered device vbi%d for %s\n", num, s->name); @@ -344,7 +340,7 @@ void cx18_streams_cleanup(struct cx18 *cx, int unregister) static void cx18_vbi_setup(struct cx18_stream *s) { struct cx18 *cx = s->cx; - int raw = cx->vbi.sliced_in->service_set == 0; + int raw = cx18_raw_vbi(cx); u32 data[CX2341X_MBOX_MAX_DATA]; int lines; @@ -362,8 +358,7 @@ static void cx18_vbi_setup(struct cx18_stream *s) cx18_av_cmd(cx, VIDIOC_S_FMT, &cx->vbi.in); /* determine number of lines and total number of VBI bytes. - A raw line takes 1443 bytes: 2 * 720 + 4 byte frame header - 1 - The '- 1' byte is probably an unused U or V byte. Or something... + A raw line takes 1444 bytes: 4 byte SAV code + 2 * 720 A sliced line takes 51 bytes: 4 byte frame header, 4 byte internal header, 42 data bytes + checksum (to be confirmed) */ if (raw) { @@ -381,14 +376,15 @@ static void cx18_vbi_setup(struct cx18_stream *s) /* Lines per field */ data[1] = (lines / 2) | ((lines / 2) << 16); /* bytes per line */ - data[2] = (raw ? cx->vbi.raw_size : cx->vbi.sliced_size); + data[2] = (raw ? cx->vbi.raw_decoder_line_size + : cx->vbi.sliced_decoder_line_size); /* Every X number of frames a VBI interrupt arrives (frames as in 25 or 30 fps) */ data[3] = 1; /* Setup VBI for the cx25840 digitizer */ if (raw) { data[4] = 0x20602060; - data[5] = 0x30703070; + data[5] = 0x307090d0; } else { data[4] = 0xB0F0B0F0; data[5] = 0xA0E0A0E0; @@ -401,11 +397,52 @@ static void cx18_vbi_setup(struct cx18_stream *s) cx18_api(cx, CX18_CPU_SET_RAW_VBI_PARAM, 6, data); } +struct cx18_queue *cx18_stream_put_buf_fw(struct cx18_stream *s, + struct cx18_buffer *buf) +{ + struct cx18 *cx = s->cx; + struct cx18_queue *q; + + /* Don't give it to the firmware, if we're not running a capture */ + if (s->handle == CX18_INVALID_TASK_HANDLE || + !test_bit(CX18_F_S_STREAMING, &s->s_flags)) + return cx18_enqueue(s, buf, &s->q_free); + + q = cx18_enqueue(s, buf, &s->q_busy); + if (q != &s->q_busy) + return q; /* The firmware has the max buffers it can handle */ + + cx18_buf_sync_for_device(s, buf); + cx18_vapi(cx, CX18_CPU_DE_SET_MDL, 5, s->handle, + (void __iomem *) &cx->scb->cpu_mdl[buf->id] - cx->enc_mem, + 1, buf->id, s->buf_size); + return q; +} + +void cx18_stream_load_fw_queue(struct cx18_stream *s) +{ + struct cx18_queue *q; + struct cx18_buffer *buf; + + if (atomic_read(&s->q_free.buffers) == 0 || + atomic_read(&s->q_busy.buffers) >= CX18_MAX_FW_MDLS_PER_STREAM) + return; + + /* Move from q_free to q_busy notifying the firmware, until the limit */ + do { + buf = cx18_dequeue(s, &s->q_free); + if (buf == NULL) + break; + q = cx18_stream_put_buf_fw(s, buf); + } while (atomic_read(&s->q_busy.buffers) < CX18_MAX_FW_MDLS_PER_STREAM + && q == &s->q_busy); +} + int cx18_start_v4l2_encode_stream(struct cx18_stream *s) { u32 data[MAX_MB_ARGUMENTS]; struct cx18 *cx = s->cx; - struct list_head *p; + struct cx18_buffer *buf; int ts = 0; int captype = 0; @@ -434,8 +471,8 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s) captype = CAPTURE_CHANNEL_TYPE_PCM; break; case CX18_ENC_STREAM_TYPE_VBI: - captype = cx->vbi.sliced_in->service_set ? - CAPTURE_CHANNEL_TYPE_SLICED_VBI : CAPTURE_CHANNEL_TYPE_VBI; + captype = cx18_raw_vbi(cx) ? + CAPTURE_CHANNEL_TYPE_VBI : CAPTURE_CHANNEL_TYPE_SLICED_VBI; cx->vbi.frame = 0; cx->vbi.inserted_frame = 0; memset(cx->vbi.sliced_mpeg_size, @@ -457,6 +494,8 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s) cx18_vapi(cx, CX18_CPU_SET_CHANNEL_TYPE, 2, s->handle, captype); if (atomic_read(&cx->ana_capturing) == 0 && !ts) { + struct cx18_api_func_private priv; + /* Stuff from Windows, we don't know what it is */ cx18_vapi(cx, CX18_CPU_SET_VER_CROP_LINE, 2, s->handle, 0); cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 3, s->handle, 3, 1); @@ -476,7 +515,9 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s) cx18_vapi_result(cx, data, CX18_CPU_SET_INDEXTABLE, 1, 0); /* Setup API for Stream */ - cx2341x_update(cx, cx18_api_func, NULL, &cx->params); + priv.cx = cx; + priv.s = s; + cx2341x_update(&priv, cx18_api_func, NULL, &cx->params); } if (atomic_read(&cx->tot_capturing) == 0) { @@ -488,16 +529,17 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s) (void __iomem *)&cx->scb->cpu_mdl_ack[s->type][0] - cx->enc_mem, (void __iomem *)&cx->scb->cpu_mdl_ack[s->type][1] - cx->enc_mem); - list_for_each(p, &s->q_free.list) { - struct cx18_buffer *buf = list_entry(p, struct cx18_buffer, list); - + /* Init all the cpu_mdls for this stream */ + cx18_flush_queues(s); + mutex_lock(&s->qlock); + list_for_each_entry(buf, &s->q_free.list, list) { cx18_writel(cx, buf->dma_handle, &cx->scb->cpu_mdl[buf->id].paddr); cx18_writel(cx, s->buf_size, &cx->scb->cpu_mdl[buf->id].length); - cx18_vapi(cx, CX18_CPU_DE_SET_MDL, 5, s->handle, - (void __iomem *)&cx->scb->cpu_mdl[buf->id] - cx->enc_mem, - 1, buf->id, s->buf_size); } + mutex_unlock(&s->qlock); + cx18_stream_load_fw_queue(s); + /* begin_capture */ if (cx18_vapi(cx, CX18_CPU_CAPTURE_START, 1, s->handle)) { CX18_DEBUG_WARN("Error starting capture!\n"); @@ -506,9 +548,15 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s) cx18_vapi(cx, CX18_CPU_CAPTURE_STOP, 2, s->handle, 1); else cx18_vapi(cx, CX18_CPU_CAPTURE_STOP, 1, s->handle); + clear_bit(CX18_F_S_STREAMING, &s->s_flags); + /* FIXME - CX18_F_S_STREAMOFF as well? */ cx18_vapi(cx, CX18_CPU_DE_RELEASE_MDL, 1, s->handle); cx18_vapi(cx, CX18_DESTROY_TASK, 1, s->handle); - /* FIXME - clean-up DSP0_INT mask, i_flags, s_flags, etc. */ + s->handle = CX18_INVALID_TASK_HANDLE; + if (atomic_read(&cx->tot_capturing) == 0) { + set_bit(CX18_F_I_EOS, &cx->i_flags); + cx18_write_reg(cx, 5, CX18_DSP0_INTERRUPT_MASK); + } return -EINVAL; } @@ -560,9 +608,6 @@ int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end) CX18_INFO("ignoring gop_end: not (yet?) supported by the firmware\n"); } - /* Tell the CX23418 it can't use our buffers anymore */ - cx18_vapi(cx, CX18_CPU_DE_RELEASE_MDL, 1, s->handle); - if (s->type != CX18_ENC_STREAM_TYPE_TS) atomic_dec(&cx->ana_capturing); atomic_dec(&cx->tot_capturing); @@ -570,6 +615,9 @@ int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end) /* Clear capture and no-read bits */ clear_bit(CX18_F_S_STREAMING, &s->s_flags); + /* Tell the CX23418 it can't use our buffers anymore */ + cx18_vapi(cx, CX18_CPU_DE_RELEASE_MDL, 1, s->handle); + cx18_vapi(cx, CX18_DESTROY_TASK, 1, s->handle); s->handle = CX18_INVALID_TASK_HANDLE; @@ -595,3 +643,21 @@ u32 cx18_find_handle(struct cx18 *cx) } return CX18_INVALID_TASK_HANDLE; } + +struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle) +{ + int i; + struct cx18_stream *s; + + if (handle == CX18_INVALID_TASK_HANDLE) + return NULL; + + for (i = 0; i < CX18_MAX_STREAMS; i++) { + s = &cx->streams[i]; + if (s->handle != handle) + continue; + if (s->v4l2dev || s->dvb.enabled) + return s; + } + return NULL; +} diff --git a/drivers/media/video/cx18/cx18-streams.h b/drivers/media/video/cx18/cx18-streams.h index f327e947b24f..420e0a172945 100644 --- a/drivers/media/video/cx18/cx18-streams.h +++ b/drivers/media/video/cx18/cx18-streams.h @@ -4,6 +4,7 @@ * Derived from ivtv-streams.h * * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@radix.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -22,11 +23,15 @@ */ u32 cx18_find_handle(struct cx18 *cx); +struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle); int cx18_streams_setup(struct cx18 *cx); int cx18_streams_register(struct cx18 *cx); void cx18_streams_cleanup(struct cx18 *cx, int unregister); /* Capture related */ +void cx18_stream_load_fw_queue(struct cx18_stream *s); +struct cx18_queue *cx18_stream_put_buf_fw(struct cx18_stream *s, + struct cx18_buffer *buf); int cx18_start_v4l2_encode_stream(struct cx18_stream *s); int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end); diff --git a/drivers/media/video/cx18/cx18-vbi.c b/drivers/media/video/cx18/cx18-vbi.c index 22e76ee3f447..fb595bd548e8 100644 --- a/drivers/media/video/cx18/cx18-vbi.c +++ b/drivers/media/video/cx18/cx18-vbi.c @@ -160,11 +160,14 @@ void cx18_process_vbi_data(struct cx18 *cx, struct cx18_buffer *buf, return; /* Raw VBI data */ - if (cx->vbi.sliced_in->service_set == 0) { + if (cx18_raw_vbi(cx)) { u8 type; cx18_buf_swap(buf); + /* Skip 12 bytes of header that gets stuffed in */ + size -= 12; + memcpy(p, &buf->buf[12], size); type = p[3]; size = buf->bytesused = compress_raw_buf(cx, p, size); diff --git a/drivers/media/video/cx18/cx18-version.h b/drivers/media/video/cx18/cx18-version.h index 9f6be2d457fb..84c0ff13b607 100644 --- a/drivers/media/video/cx18/cx18-version.h +++ b/drivers/media/video/cx18/cx18-version.h @@ -25,7 +25,7 @@ #define CX18_DRIVER_NAME "cx18" #define CX18_DRIVER_VERSION_MAJOR 1 #define CX18_DRIVER_VERSION_MINOR 0 -#define CX18_DRIVER_VERSION_PATCHLEVEL 1 +#define CX18_DRIVER_VERSION_PATCHLEVEL 4 #define CX18_VERSION __stringify(CX18_DRIVER_VERSION_MAJOR) "." __stringify(CX18_DRIVER_VERSION_MINOR) "." __stringify(CX18_DRIVER_VERSION_PATCHLEVEL) #define CX18_DRIVER_VERSION KERNEL_VERSION(CX18_DRIVER_VERSION_MAJOR, \ diff --git a/drivers/media/video/cx18/cx23418.h b/drivers/media/video/cx18/cx23418.h index 668f968d7761..601f3a2ab742 100644 --- a/drivers/media/video/cx18/cx23418.h +++ b/drivers/media/video/cx18/cx23418.h @@ -44,6 +44,7 @@ /* All commands for CPU have the following mask set */ #define CPU_CMD_MASK 0x20000000 +#define CPU_CMD_MASK_DEBUG (CPU_CMD_MASK | 0x00000000) #define CPU_CMD_MASK_ACK (CPU_CMD_MASK | 0x80000000) #define CPU_CMD_MASK_CAPTURE (CPU_CMD_MASK | 0x00020000) #define CPU_CMD_MASK_TS (CPU_CMD_MASK | 0x00040000) @@ -71,6 +72,11 @@ 0/zero/NULL means "I have nothing to say" */ #define CX18_EPU_DEBUG (EPU_CMD_MASK_DEBUG | 0x0003) +/* Reads memory/registers (32-bit) + IN[0] - Address + OUT[1] - Value */ +#define CX18_CPU_DEBUG_PEEK32 (CPU_CMD_MASK_DEBUG | 0x0003) + /* Description: This command starts streaming with the set channel type IN[0] - Task handle. Handle of the task to start ReturnCode - One of the ERR_CAPTURE_... */ |