diff options
Diffstat (limited to 'sound/sparc/cs4231.c')
| -rw-r--r-- | sound/sparc/cs4231.c | 2245 |
1 files changed, 2245 insertions, 0 deletions
diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c new file mode 100644 index 000000000000..36f9fe4d7bea --- /dev/null +++ b/sound/sparc/cs4231.c @@ -0,0 +1,2245 @@ +/* + * Driver for CS4231 sound chips found on Sparcs. + * Copyright (C) 2002 David S. Miller <davem@redhat.com> + * + * Based entirely upon drivers/sbus/audio/cs4231.c which is: + * Copyright (C) 1996, 1997, 1998, 1998 Derrick J Brashear (shadow@andrew.cmu.edu) + * and also sound/isa/cs423x/cs4231_lib.c which is: + * Copyright (c) by Jaroslav Kysela <perex@suse.cz> + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/moduleparam.h> + +#include <sound/driver.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/info.h> +#include <sound/control.h> +#include <sound/timer.h> +#include <sound/initval.h> +#include <sound/pcm_params.h> + +#include <asm/io.h> +#include <asm/irq.h> + +#ifdef CONFIG_SBUS +#define SBUS_SUPPORT +#endif + +#ifdef SBUS_SUPPORT +#include <asm/sbus.h> +#endif + +#if defined(CONFIG_PCI) && defined(CONFIG_SPARC64) +#define EBUS_SUPPORT +#endif + +#ifdef EBUS_SUPPORT +#include <linux/pci.h> +#include <asm/ebus.h> +#endif + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ +static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for Sun CS4231 soundcard."); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for Sun CS4231 soundcard."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable Sun CS4231 soundcard."); +MODULE_AUTHOR("Jaroslav Kysela, Derrick J. Brashear and David S. Miller"); +MODULE_DESCRIPTION("Sun CS4231"); +MODULE_LICENSE("GPL"); +MODULE_SUPPORTED_DEVICE("{{Sun,CS4231}}"); + +typedef struct snd_cs4231 { + spinlock_t lock; + void __iomem *port; +#ifdef EBUS_SUPPORT + struct ebus_dma_info eb2c; + struct ebus_dma_info eb2p; +#endif + + u32 flags; +#define CS4231_FLAG_EBUS 0x00000001 +#define CS4231_FLAG_PLAYBACK 0x00000002 +#define CS4231_FLAG_CAPTURE 0x00000004 + + snd_card_t *card; + snd_pcm_t *pcm; + snd_pcm_substream_t *playback_substream; + unsigned int p_periods_sent; + snd_pcm_substream_t *capture_substream; + unsigned int c_periods_sent; + snd_timer_t *timer; + + unsigned short mode; +#define CS4231_MODE_NONE 0x0000 +#define CS4231_MODE_PLAY 0x0001 +#define CS4231_MODE_RECORD 0x0002 +#define CS4231_MODE_TIMER 0x0004 +#define CS4231_MODE_OPEN (CS4231_MODE_PLAY|CS4231_MODE_RECORD|CS4231_MODE_TIMER) + + unsigned char image[32]; /* registers image */ + int mce_bit; + int calibrate_mute; + struct semaphore mce_mutex; + struct semaphore open_mutex; + + union { +#ifdef SBUS_SUPPORT + struct sbus_dev *sdev; +#endif +#ifdef EBUS_SUPPORT + struct pci_dev *pdev; +#endif + } dev_u; + unsigned int irq[2]; + unsigned int regs_size; + struct snd_cs4231 *next; +} cs4231_t; + +static cs4231_t *cs4231_list; + +/* Eventually we can use sound/isa/cs423x/cs4231_lib.c directly, but for + * now.... -DaveM + */ + +/* IO ports */ + +#define CS4231P(chip, x) ((chip)->port + c_d_c_CS4231##x) + +/* XXX offsets are different than PC ISA chips... */ +#define c_d_c_CS4231REGSEL 0x0 +#define c_d_c_CS4231REG 0x4 +#define c_d_c_CS4231STATUS 0x8 +#define c_d_c_CS4231PIO 0xc + +/* codec registers */ + +#define CS4231_LEFT_INPUT 0x00 /* left input control */ +#define CS4231_RIGHT_INPUT 0x01 /* right input control */ +#define CS4231_AUX1_LEFT_INPUT 0x02 /* left AUX1 input control */ +#define CS4231_AUX1_RIGHT_INPUT 0x03 /* right AUX1 input control */ +#define CS4231_AUX2_LEFT_INPUT 0x04 /* left AUX2 input control */ +#define CS4231_AUX2_RIGHT_INPUT 0x05 /* right AUX2 input control */ +#define CS4231_LEFT_OUTPUT 0x06 /* left output control register */ +#define CS4231_RIGHT_OUTPUT 0x07 /* right output control register */ +#define CS4231_PLAYBK_FORMAT 0x08 /* clock and data format - playback - bits 7-0 MCE */ +#define CS4231_IFACE_CTRL 0x09 /* interface control - bits 7-2 MCE */ +#define CS4231_PIN_CTRL 0x0a /* pin control */ +#define CS4231_TEST_INIT 0x0b /* test and initialization */ +#define CS4231_MISC_INFO 0x0c /* miscellaneaous information */ +#define CS4231_LOOPBACK 0x0d /* loopback control */ +#define CS4231_PLY_UPR_CNT 0x0e /* playback upper base count */ +#define CS4231_PLY_LWR_CNT 0x0f /* playback lower base count */ +#define CS4231_ALT_FEATURE_1 0x10 /* alternate #1 feature enable */ +#define CS4231_ALT_FEATURE_2 0x11 /* alternate #2 feature enable */ +#define CS4231_LEFT_LINE_IN 0x12 /* left line input control */ +#define CS4231_RIGHT_LINE_IN 0x13 /* right line input control */ +#define CS4231_TIMER_LOW 0x14 /* timer low byte */ +#define CS4231_TIMER_HIGH 0x15 /* timer high byte */ +#define CS4231_LEFT_MIC_INPUT 0x16 /* left MIC input control register (InterWave only) */ +#define CS4231_RIGHT_MIC_INPUT 0x17 /* right MIC input control register (InterWave only) */ +#define CS4236_EXT_REG 0x17 /* extended register access */ +#define CS4231_IRQ_STATUS 0x18 /* irq status register */ +#define CS4231_LINE_LEFT_OUTPUT 0x19 /* left line output control register (InterWave only) */ +#define CS4231_VERSION 0x19 /* CS4231(A) - version values */ +#define CS4231_MONO_CTRL 0x1a /* mono input/output control */ +#define CS4231_LINE_RIGHT_OUTPUT 0x1b /* right line output control register (InterWave only) */ +#define CS4235_LEFT_MASTER 0x1b /* left master output control */ +#define CS4231_REC_FORMAT 0x1c /* clock and data format - record - bits 7-0 MCE */ +#define CS4231_PLY_VAR_FREQ 0x1d /* playback variable frequency */ +#define CS4235_RIGHT_MASTER 0x1d /* right master output control */ +#define CS4231_REC_UPR_CNT 0x1e /* record upper count */ +#define CS4231_REC_LWR_CNT 0x1f /* record lower count */ + +/* definitions for codec register select port - CODECP( REGSEL ) */ + +#define CS4231_INIT 0x80 /* CODEC is initializing */ +#define CS4231_MCE 0x40 /* mode change enable */ +#define CS4231_TRD 0x20 /* transfer request disable */ + +/* definitions for codec status register - CODECP( STATUS ) */ + +#define CS4231_GLOBALIRQ 0x01 /* IRQ is active */ + +/* definitions for codec irq status */ + +#define CS4231_PLAYBACK_IRQ 0x10 +#define CS4231_RECORD_IRQ 0x20 +#define CS4231_TIMER_IRQ 0x40 +#define CS4231_ALL_IRQS 0x70 +#define CS4231_REC_UNDERRUN 0x08 +#define CS4231_REC_OVERRUN 0x04 +#define CS4231_PLY_OVERRUN 0x02 +#define CS4231_PLY_UNDERRUN 0x01 + +/* definitions for CS4231_LEFT_INPUT and CS4231_RIGHT_INPUT registers */ + +#define CS4231_ENABLE_MIC_GAIN 0x20 + +#define CS4231_MIXS_LINE 0x00 +#define CS4231_MIXS_AUX1 0x40 +#define CS4231_MIXS_MIC 0x80 +#define CS4231_MIXS_ALL 0xc0 + +/* definitions for clock and data format register - CS4231_PLAYBK_FORMAT */ + +#define CS4231_LINEAR_8 0x00 /* 8-bit unsigned data */ +#define CS4231_ALAW_8 0x60 /* 8-bit A-law companded */ +#define CS4231_ULAW_8 0x20 /* 8-bit U-law companded */ +#define CS4231_LINEAR_16 0x40 /* 16-bit twos complement data - little endian */ +#define CS4231_LINEAR_16_BIG 0xc0 /* 16-bit twos complement data - big endian */ +#define CS4231_ADPCM_16 0xa0 /* 16-bit ADPCM */ +#define CS4231_STEREO 0x10 /* stereo mode */ +/* bits 3-1 define frequency divisor */ +#define CS4231_XTAL1 0x00 /* 24.576 crystal */ +#define CS4231_XTAL2 0x01 /* 16.9344 crystal */ + +/* definitions for interface control register - CS4231_IFACE_CTRL */ + +#define CS4231_RECORD_PIO 0x80 /* record PIO enable */ +#define CS4231_PLAYBACK_PIO 0x40 /* playback PIO enable */ +#define CS4231_CALIB_MODE 0x18 /* calibration mode bits */ +#define CS4231_AUTOCALIB 0x08 /* auto calibrate */ +#define CS4231_SINGLE_DMA 0x04 /* use single DMA channel */ +#define CS4231_RECORD_ENABLE 0x02 /* record enable */ +#define CS4231_PLAYBACK_ENABLE 0x01 /* playback enable */ + +/* definitions for pin control register - CS4231_PIN_CTRL */ + +#define CS4231_IRQ_ENABLE 0x02 /* enable IRQ */ +#define CS4231_XCTL1 0x40 /* external control #1 */ +#define CS4231_XCTL0 0x80 /* external control #0 */ + +/* definitions for test and init register - CS4231_TEST_INIT */ + +#define CS4231_CALIB_IN_PROGRESS 0x20 /* auto calibrate in progress */ +#define CS4231_DMA_REQUEST 0x10 /* DMA request in progress */ + +/* definitions for misc control register - CS4231_MISC_INFO */ + +#define CS4231_MODE2 0x40 /* MODE 2 */ +#define CS4231_IW_MODE3 0x6c /* MODE 3 - InterWave enhanced mode */ +#define CS4231_4236_MODE3 0xe0 /* MODE 3 - CS4236+ enhanced mode */ + +/* definitions for alternate feature 1 register - CS4231_ALT_FEATURE_1 */ + +#define CS4231_DACZ 0x01 /* zero DAC when underrun */ +#define CS4231_TIMER_ENABLE 0x40 /* codec timer enable */ +#define CS4231_OLB 0x80 /* output level bit */ + +/* SBUS DMA register defines. */ + +#define APCCSR 0x10UL /* APC DMA CSR */ +#define APCCVA 0x20UL /* APC Capture DMA Address */ +#define APCCC 0x24UL /* APC Capture Count */ +#define APCCNVA 0x28UL /* APC Capture DMA Next Address */ +#define APCCNC 0x2cUL /* APC Capture Next Count */ +#define APCPVA 0x30UL /* APC Play DMA Address */ +#define APCPC 0x34UL /* APC Play Count */ +#define APCPNVA 0x38UL /* APC Play DMA Next Address */ +#define APCPNC 0x3cUL /* APC Play Next Count */ + +/* APCCSR bits */ + +#define APC_INT_PENDING 0x800000 /* Interrupt Pending */ +#define APC_PLAY_INT 0x400000 /* Playback interrupt */ +#define APC_CAPT_INT 0x200000 /* Capture interrupt */ +#define APC_GENL_INT 0x100000 /* General interrupt */ +#define APC_XINT_ENA 0x80000 /* General ext int. enable */ +#define APC_XINT_PLAY 0x40000 /* Playback ext intr */ +#define APC_XINT_CAPT 0x20000 /* Capture ext intr */ +#define APC_XINT_GENL 0x10000 /* Error ext intr */ +#define APC_XINT_EMPT 0x8000 /* Pipe empty interrupt (0 write to pva) */ +#define APC_XINT_PEMP 0x4000 /* Play pipe empty (pva and pnva not set) */ +#define APC_XINT_PNVA 0x2000 /* Playback NVA dirty */ +#define APC_XINT_PENA 0x1000 /* play pipe empty Int enable */ +#define APC_XINT_COVF 0x800 /* Cap data dropped on floor */ +#define APC_XINT_CNVA 0x400 /* Capture NVA dirty */ +#define APC_XINT_CEMP 0x200 /* Capture pipe empty (cva and cnva not set) */ +#define APC_XINT_CENA 0x100 /* Cap. pipe empty int enable */ +#define APC_PPAUSE 0x80 /* Pause the play DMA */ +#define APC_CPAUSE 0x40 /* Pause the capture DMA */ +#define APC_CDC_RESET 0x20 /* CODEC RESET */ +#define APC_PDMA_READY 0x08 /* Play DMA Go */ +#define APC_CDMA_READY 0x04 /* Capture DMA Go */ +#define APC_CHIP_RESET 0x01 /* Reset the chip */ + +/* EBUS DMA register offsets */ + +#define EBDMA_CSR 0x00UL /* Control/Status */ +#define EBDMA_ADDR 0x04UL /* DMA Address */ +#define EBDMA_COUNT 0x08UL /* DMA Count */ + +/* + * Some variables + */ + +static unsigned char freq_bits[14] = { + /* 5510 */ 0x00 | CS4231_XTAL2, + /* 6620 */ 0x0E | CS4231_XTAL2, + /* 8000 */ 0x00 | CS4231_XTAL1, + /* 9600 */ 0x0E | CS4231_XTAL1, + /* 11025 */ 0x02 | CS4231_XTAL2, + /* 16000 */ 0x02 | CS4231_XTAL1, + /* 18900 */ 0x04 | CS4231_XTAL2, + /* 22050 */ 0x06 | CS4231_XTAL2, + /* 27042 */ 0x04 | CS4231_XTAL1, + /* 32000 */ 0x06 | CS4231_XTAL1, + /* 33075 */ 0x0C | CS4231_XTAL2, + /* 37800 */ 0x08 | CS4231_XTAL2, + /* 44100 */ 0x0A | CS4231_XTAL2, + /* 48000 */ 0x0C | CS4231_XTAL1 +}; + +static unsigned int rates[14] = { + 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050, + 27042, 32000, 33075, 37800, 44100, 48000 +}; + +static snd_pcm_hw_constraint_list_t hw_constraints_rates = { + .count = 14, + .list = rates, +}; + +static int snd_cs4231_xrate(snd_pcm_runtime_t *runtime) +{ + return snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &hw_constraints_rates); +} + +static unsigned char snd_cs4231_original_image[32] = +{ + 0x00, /* 00/00 - lic */ + 0x00, /* 01/01 - ric */ + 0x9f, /* 02/02 - la1ic */ + 0x9f, /* 03/03 - ra1ic */ + 0x9f, /* 04/04 - la2ic */ + 0x9f, /* 05/05 - ra2ic */ + 0xbf, /* 06/06 - loc */ + 0xbf, /* 07/07 - roc */ + 0x20, /* 08/08 - pdfr */ + CS4231_AUTOCALIB, /* 09/09 - ic */ + 0x00, /* 0a/10 - pc */ + 0x00, /* 0b/11 - ti */ + CS4231_MODE2, /* 0c/12 - mi */ + 0x00, /* 0d/13 - lbc */ + 0x00, /* 0e/14 - pbru */ + 0x00, /* 0f/15 - pbrl */ + 0x80, /* 10/16 - afei */ + 0x01, /* 11/17 - afeii */ + 0x9f, /* 12/18 - llic */ + 0x9f, /* 13/19 - rlic */ + 0x00, /* 14/20 - tlb */ + 0x00, /* 15/21 - thb */ + 0x00, /* 16/22 - la3mic/reserved */ + 0x00, /* 17/23 - ra3mic/reserved */ + 0x00, /* 18/24 - afs */ + 0x00, /* 19/25 - lamoc/version */ + 0x00, /* 1a/26 - mioc */ + 0x00, /* 1b/27 - ramoc/reserved */ + 0x20, /* 1c/28 - cdfr */ + 0x00, /* 1d/29 - res4 */ + 0x00, /* 1e/30 - cbru */ + 0x00, /* 1f/31 - cbrl */ +}; + +static u8 __cs4231_readb(cs4231_t *cp, void __iomem *reg_addr) +{ +#ifdef EBUS_SUPPORT + if (cp->flags & CS4231_FLAG_EBUS) { + return readb(reg_addr); + } else { +#endif +#ifdef SBUS_SUPPORT + return sbus_readb(reg_addr); +#endif +#ifdef EBUS_SUPPORT + } +#endif +} + +static void __cs4231_writeb(cs4231_t *cp, u8 val, void __iomem *reg_addr) +{ +#ifdef EBUS_SUPPORT + if (cp->flags & CS4231_FLAG_EBUS) { + return writeb(val, reg_addr); + } else { +#endif +#ifdef SBUS_SUPPORT + return sbus_writeb(val, reg_addr); +#endif +#ifdef EBUS_SUPPORT + } +#endif +} + +/* + * Basic I/O functions + */ + +static void snd_cs4231_outm(cs4231_t *chip, unsigned char reg, + unsigned char mask, unsigned char value) +{ + int timeout; + unsigned char tmp; + + for (timeout = 250; + timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT); + timeout--) + udelay(100); +#ifdef CONFIG_SND_DEBUG + if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT) + snd_printk("outm: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value); +#endif + if (chip->calibrate_mute) { + chip->image[reg] &= mask; + chip->image[reg] |= value; + } else { + __cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL)); + mb(); + tmp = (chip->image[reg] & mask) | value; + __cs4231_writeb(chip, tmp, CS4231P(chip, REG)); + chip->image[reg] = tmp; + mb(); + } +} + +static void snd_cs4231_dout(cs4231_t *chip, unsigned char reg, unsigned char value) +{ + int timeout; + + for (timeout = 250; + timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT); + timeout--) + udelay(100); + __cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL)); + __cs4231_writeb(chip, value, CS4231P(chip, REG)); + mb(); +} + +static void snd_cs4231_out(cs4231_t *chip, unsigned char reg, unsigned char value) +{ + int timeout; + + for (timeout = 250; + timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT); + timeout--) + udelay(100); +#ifdef CONFIG_SND_DEBUG + if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT) + snd_printk("out: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value); +#endif + __cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL)); + __cs4231_writeb(chip, value, CS4231P(chip, REG)); + chip->image[reg] = value; + mb(); +#if 0 + printk("codec out - reg 0x%x = 0x%x\n", chip->mce_bit | reg, value); +#endif +} + +static unsigned char snd_cs4231_in(cs4231_t *chip, unsigned char reg) +{ + int timeout; + unsigned char ret; + + for (timeout = 250; + timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT); + timeout--) + udelay(100); +#ifdef CONFIG_SND_DEBUG + if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT) + snd_printk("in: auto calibration time out - reg = 0x%x\n", reg); +#endif + __cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL)); + mb(); + ret = __cs4231_readb(chip, CS4231P(chip, REG)); +#if 0 + printk("codec in - reg 0x%x = 0x%x\n", chip->mce_bit | reg, ret); +#endif + return ret; +} + +#if 0 + +static void snd_cs4231_debug(cs4231_t *chip) +{ + printk("CS4231 REGS: INDEX = 0x%02x ", + __cs4231_readb(chip, CS4231P(chip, REGSEL))); + printk(" STATUS = 0x%02x\n", + __cs4231_readb(chip, CS4231P(chip, STATUS))); + printk(" 0x00: left input = 0x%02x ", snd_cs4231_in(chip, 0x00)); + printk(" 0x10: alt 1 (CFIG 2) = 0x%02x\n", snd_cs4231_in(chip, 0x10)); + printk(" 0x01: right input = 0x%02x ", snd_cs4231_in(chip, 0x01)); + printk(" 0x11: alt 2 (CFIG 3) = 0x%02x\n", snd_cs4231_in(chip, 0x11)); + printk(" 0x02: GF1 left input = 0x%02x ", snd_cs4231_in(chip, 0x02)); + printk(" 0x12: left line in = 0x%02x\n", snd_cs4231_in(chip, 0x12)); + printk(" 0x03: GF1 right input = 0x%02x ", snd_cs4231_in(chip, 0x03)); + printk(" 0x13: right line in = 0x%02x\n", snd_cs4231_in(chip, 0x13)); + printk(" 0x04: CD left input = 0x%02x ", snd_cs4231_in(chip, 0x04)); + printk(" 0x14: timer low = 0x%02x\n", snd_cs4231_in(chip, 0x14)); + printk(" 0x05: CD right input = 0x%02x ", snd_cs4231_in(chip, 0x05)); + printk(" 0x15: timer high = 0x%02x\n", snd_cs4231_in(chip, 0x15)); + printk(" 0x06: left output = 0x%02x ", snd_cs4231_in(chip, 0x06)); + printk(" 0x16: left MIC (PnP) = 0x%02x\n", snd_cs4231_in(chip, 0x16)); + printk(" 0x07: right output = 0x%02x ", snd_cs4231_in(chip, 0x07)); + printk(" 0x17: right MIC (PnP) = 0x%02x\n", snd_cs4231_in(chip, 0x17)); + printk(" 0x08: playback format = 0x%02x ", snd_cs4231_in(chip, 0x08)); + printk(" 0x18: IRQ status = 0x%02x\n", snd_cs4231_in(chip, 0x18)); + printk(" 0x09: iface (CFIG 1) = 0x%02x ", snd_cs4231_in(chip, 0x09)); + printk(" 0x19: left line out = 0x%02x\n", snd_cs4231_in(chip, 0x19)); + printk(" 0x0a: pin control = 0x%02x ", snd_cs4231_in(chip, 0x0a)); + printk(" 0x1a: mono control = 0x%02x\n", snd_cs4231_in(chip, 0x1a)); + printk(" 0x0b: init & status = 0x%02x ", snd_cs4231_in(chip, 0x0b)); + printk(" 0x1b: right line out = 0x%02x\n", snd_cs4231_in(chip, 0x1b)); + printk(" 0x0c: revision & mode = 0x%02x ", snd_cs4231_in(chip, 0x0c)); + printk(" 0x1c: record format = 0x%02x\n", snd_cs4231_in(chip, 0x1c)); + printk(" 0x0d: loopback = 0x%02x ", snd_cs4231_in(chip, 0x0d)); + printk(" 0x1d: var freq (PnP) = 0x%02x\n", snd_cs4231_in(chip, 0x1d)); + printk(" 0x0e: ply upr count = 0x%02x ", snd_cs4231_in(chip, 0x0e)); + printk(" 0x1e: rec upr count = 0x%02x\n", snd_cs4231_in(chip, 0x1e)); + printk(" 0x0f: ply lwr count = 0x%02x ", snd_cs4231_in(chip, 0x0f)); + printk(" 0x1f: rec lwr count = 0x%02x\n", snd_cs4231_in(chip, 0x1f)); +} + +#endif + +/* + * CS4231 detection / MCE routines + */ + +static void snd_cs4231_busy_wait(cs4231_t *chip) +{ + int timeout; + + /* huh.. looks like this sequence is proper for CS4231A chip (GUS MAX) */ + for (timeout = 5; timeout > 0; timeout--) + __cs4231_readb(chip, CS4231P(chip, REGSEL)); + /* end of cleanup sequence */ + for (timeout = 250; + timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT); + timeout--) + udelay(100); +} + +static void snd_cs4231_mce_up(cs4231_t *chip) +{ + unsigned long flags; + int timeout; + + spin_lock_irqsave(&chip->lock, flags); + for (timeout = 250; timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT); timeout--) + udelay(100); +#ifdef CONFIG_SND_DEBUG + if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT) + snd_printk("mce_up - auto calibration time out (0)\n"); +#endif + chip->mce_bit |= CS4231_MCE; + timeout = __cs4231_readb(chip, CS4231P(chip, REGSEL)); + if (timeout == 0x80) + snd_printk("mce_up [%p]: serious init problem - codec still busy\n", chip->port); + if (!(timeout & CS4231_MCE)) + __cs4231_writeb(chip, chip->mce_bit | (timeout & 0x1f), CS4231P(chip, REGSEL)); + spin_unlock_irqrestore(&chip->lock, flags); +} + +static void snd_cs4231_mce_down(cs4231_t *chip) +{ + unsigned long flags; + int timeout; + + spin_lock_irqsave(&chip->lock, flags); + snd_cs4231_busy_wait(chip); +#if 0 + printk("(1) timeout = %i\n", timeout); +#endif +#ifdef CONFIG_SND_DEBUG + if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT) + snd_printk("mce_down [%p] - auto calibration time out (0)\n", CS4231P(chip, REGSEL)); +#endif + chip->mce_bit &= ~CS4231_MCE; + timeout = __cs4231_readb(chip, CS4231P(chip, REGSEL)); + __cs4231_writeb(chip, chip->mce_bit | (timeout & 0x1f), CS4231P(chip, REGSEL)); + if (timeout == 0x80) + snd_printk("mce_down [%p]: serious init problem - codec still busy\n", chip->port); + if ((timeout & CS4231_MCE) == 0) { + spin_unlock_irqrestore(&chip->lock, flags); + return; + } + snd_cs4231_busy_wait(chip); + + /* calibration process */ + + for (timeout = 500; timeout > 0 && (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0; timeout--) + udelay(100); + if ((snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0) { + snd_printd("cs4231_mce_down - auto calibration time out (1)\n"); + spin_unlock_irqrestore(&chip->lock, flags); + return; + } +#if 0 + printk("(2) timeout = %i, jiffies = %li\n", timeout, jiffies); +#endif + /* in 10ms increments, check condition, up to 250ms */ + timeout = 25; + while (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) { + spin_unlock_irqrestore(&chip->lock, flags); + if (--timeout < 0) { + snd_printk("mce_down - auto calibration time out (2)\n"); + return; + } + msleep(10); + spin_lock_irqsave(&chip->lock, flags); + } +#if 0 + printk("(3) jiffies = %li\n", jiffies); +#endif + /* in 10ms increments, check condition, up to 100ms */ + timeout = 10; + while (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT) { + spin_unlock_irqrestore(&chip->lock, flags); + if (--timeout < 0) { + snd_printk("mce_down - auto calibration time out (3)\n"); + return; + } + msleep(10); + spin_lock_irqsave(&chip->lock, flags); + } + spin_unlock_irqrestore(&chip->lock, flags); +#if 0 + printk("(4) jiffies = %li\n", jiffies); + snd_printk("mce_down - exit = 0x%x\n", __cs4231_readb(chip, CS4231P(chip, REGSEL))); +#endif +} + +#if 0 /* Unused for now... */ +static unsigned int snd_cs4231_get_count(unsigned char format, unsigned int size) +{ + switch (format & 0xe0) { + case CS4231_LINEAR_16: + case CS4231_LINEAR_16_BIG: + size >>= 1; + break; + case CS4231_ADPCM_16: + return size >> 2; + } + if (format & CS4231_STEREO) + size >>= 1; + return size; +} +#endif + +#ifdef EBUS_SUPPORT +static void snd_cs4231_ebus_advance_dma(struct ebus_dma_info *p, snd_pcm_substream_t *substream, unsigned int *periods_sent) +{ + snd_pcm_runtime_t *runtime = substream->runtime; + + while (1) { + unsigned int dma_size = snd_pcm_lib_period_bytes(substream); + unsigned int offset = dma_size * (*periods_sent); + + if (dma_size >= (1 << 24)) + BUG(); + + if (ebus_dma_request(p, runtime->dma_addr + offset, dma_size)) + return; +#if 0 + printk("ebus_advance: Sent period %u (size[%x] offset[%x])\n", + (*periods_sent), dma_size, offset); +#endif + (*periods_sent) = ((*periods_sent) + 1) % runtime->periods; + } +} +#endif + +static void cs4231_dma_trigger(cs4231_t *chip, unsigned int what, int on) +{ +#ifdef EBUS_SUPPORT + if (chip->flags & CS4231_FLAG_EBUS) { + if (what & CS4231_PLAYBACK_ENABLE) { + if (on) { + ebus_dma_prepare(&chip->eb2p, 0); + ebus_dma_enable(&chip->eb2p, 1); + snd_cs4231_ebus_advance_dma(&chip->eb2p, + chip->playback_substream, + &chip->p_periods_sent); + } else { + ebus_dma_enable(&chip->eb2p, 0); + } + } + if (what & CS4231_RECORD_ENABLE) { + if (on) { + ebus_dma_prepare(&chip->eb2c, 1); + ebus_dma_enable(&chip->eb2c, 1); + snd_cs4231_ebus_advance_dma(&chip->eb2c, + chip->capture_substream, + &chip->c_periods_sent); + } else { + ebus_dma_enable(&chip->eb2c, 0); + } + } + } else { +#endif +#ifdef SBUS_SUPPORT +#endif +#ifdef EBUS_SUPPORT + } +#endif +} + +static int snd_cs4231_trigger(snd_pcm_substream_t *substream, int cmd) +{ + cs4231_t *chip = snd_pcm_substream_chip(substream); + int result = 0; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_STOP: + { + unsigned int what = 0; + snd_pcm_substream_t *s; + struct list_head *pos; + unsigned long flags; + + snd_pcm_group_for_each(pos, substream) { + s = snd_pcm_group_substream_entry(pos); + if (s == chip->playback_substream) { + what |= CS4231_PLAYBACK_ENABLE; + snd_pcm_trigger_done(s, substream); + } else if (s == chip->capture_substream) { + what |= CS4231_RECORD_ENABLE; + snd_pcm_trigger_done(s, substream); + } + } + +#if 0 + printk("TRIGGER: what[%x] on(%d)\n", + what, (cmd == SNDRV_PCM_TRIGGER_START)); +#endif + + spin_lock_irqsave(&chip->lock, flags); + if (cmd == SNDRV_PCM_TRIGGER_START) { + cs4231_dma_trigger(chip, what, 1); + chip->image[CS4231_IFACE_CTRL] |= what; + if (what & CS4231_PLAYBACK_ENABLE) { + snd_cs4231_out(chip, CS4231_PLY_LWR_CNT, 0xff); + snd_cs4231_out(chip, CS4231_PLY_UPR_CNT, 0xff); + } + if (what & CS4231_RECORD_ENABLE) { + snd_cs4231_out(chip, CS4231_REC_LWR_CNT, 0xff); + snd_cs4231_out(chip, CS4231_REC_UPR_CNT, 0xff); + } + } else { + cs4231_dma_trigger(chip, what, 0); + chip->image[CS4231_IFACE_CTRL] &= ~what; + } + snd_cs4231_out(chip, CS4231_IFACE_CTRL, + chip->image[CS4231_IFACE_CTRL]); + spin_unlock_irqrestore(&chip->lock, flags); + break; + } + default: + result = -EINVAL; + break; + } +#if 0 + snd_cs4231_debug(chip); +#endif + return result; +} + +/* + * CODEC I/O + */ + +static unsigned char snd_cs4231_get_rate(unsigned int rate) +{ + int i; + + for (i = 0; i < 14; i++) + if (rate == rates[i]) + return freq_bits[i]; + // snd_BUG(); + return freq_bits[13]; +} + +static unsigned char snd_cs4231_get_format(cs4231_t *chip, int format, int channels) +{ + unsigned char rformat; + + rformat = CS4231_LINEAR_8; + switch (format) { + case SNDRV_PCM_FORMAT_MU_LAW: rformat = CS4231_ULAW_8; break; + case SNDRV_PCM_FORMAT_A_LAW: rformat = CS4231_ALAW_8; break; + case SNDRV_PCM_FORMAT_S16_LE: rformat = CS4231_LINEAR_16; break; + case SNDRV_PCM_FORMAT_S16_BE: rformat = CS4231_LINEAR_16_BIG; break; + case SNDRV_PCM_FORMAT_IMA_ADPCM: rformat = CS4231_ADPCM_16; break; + } + if (channels > 1) + rformat |= CS4231_STEREO; +#if 0 + snd_printk("get_format: 0x%x (mode=0x%x)\n", format, mode); +#endif + return rformat; +} + +static void snd_cs4231_calibrate_mute(cs4231_t *chip, int mute) +{ + unsigned long flags; + + mute = mute ? 1 : 0; + spin_lock_irqsave(&chip->lock, flags); + if (chip->calibrate_mute == mute) { + spin_unlock_irqrestore(&chip->lock, flags); + return; + } + if (!mute) { + snd_cs4231_dout(chip, CS4231_LEFT_INPUT, + chip->image[CS4231_LEFT_INPUT]); + snd_cs4231_dout(chip, CS4231_RIGHT_INPUT, + chip->image[CS4231_RIGHT_INPUT]); + snd_cs4231_dout(chip, CS4231_LOOPBACK, + chip->image[CS4231_LOOPBACK]); + } + snd_cs4231_dout(chip, CS4231_AUX1_LEFT_INPUT, + mute ? 0x80 : chip->image[CS4231_AUX1_LEFT_INPUT]); + snd_cs4231_dout(chip, CS4231_AUX1_RIGHT_INPUT, + mute ? 0x80 : chip->image[CS4231_AUX1_RIGHT_INPUT]); + snd_cs4231_dout(chip, CS4231_AUX2_LEFT_INPUT, + mute ? 0x80 : chip->image[CS4231_AUX2_LEFT_INPUT]); + snd_cs4231_dout(chip, CS4231_AUX2_RIGHT_INPUT, + mute ? 0x80 : chip->image[CS4231_AUX2_RIGHT_INPUT]); + snd_cs4231_dout(chip, CS4231_LEFT_OUTPUT, + mute ? 0x80 : chip->image[CS4231_LEFT_OUTPUT]); + snd_cs4231_dout(chip, CS4231_RIGHT_OUTPUT, + mute ? 0x80 : chip->image[CS4231_RIGHT_OUTPUT]); + snd_cs4231_dout(chip, CS4231_LEFT_LINE_IN, + mute ? 0x80 : chip->image[CS4231_LEFT_LINE_IN]); + snd_cs4231_dout(chip, CS4231_RIGHT_LINE_IN, + mute ? 0x80 : chip->image[CS4231_RIGHT_LINE_IN]); + snd_cs4231_dout(chip, CS4231_MONO_CTRL, + mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]); + chip->calibrate_mute = mute; + spin_unlock_irqrestore(&chip->lock, flags); +} + +static void snd_cs4231_playback_format(cs4231_t *chip, snd_pcm_hw_params_t *params, + unsigned char pdfr) +{ + unsigned long flags; + + down(&chip->mce_mutex); + snd_cs4231_calibrate_mute(chip, 1); + + snd_cs4231_mce_up(chip); + + spin_lock_irqsave(&chip->lock, flags); + snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, + (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) ? + (pdfr & 0xf0) | (chip->image[CS4231_REC_FORMAT] & 0x0f) : + pdfr); + spin_unlock_irqrestore(&chip->lock, flags); + + snd_cs4231_mce_down(chip); + + snd_cs4231_calibrate_mute(chip, 0); + up(&chip->mce_mutex); +} + +static void snd_cs4231_capture_format(cs4231_t *chip, snd_pcm_hw_params_t *params, + unsigned char cdfr) +{ + unsigned long flags; + + down(&chip->mce_mutex); + snd_cs4231_calibrate_mute(chip, 1); + + snd_cs4231_mce_up(chip); + + spin_lock_irqsave(&chip->lock, flags); + if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) { + snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, + ((chip->image[CS4231_PLAYBK_FORMAT]) & 0xf0) | + (cdfr & 0x0f)); + spin_unlock_irqrestore(&chip->lock, flags); + snd_cs4231_mce_down(chip); + snd_cs4231_mce_up(chip); + spin_lock_irqsave(&chip->lock, flags); + } + snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr); + spin_unlock_irqrestore(&chip->lock, flags); + + snd_cs4231_mce_down(chip); + + snd_cs4231_calibrate_mute(chip, 0); + up(&chip->mce_mutex); +} + +/* + * Timer interface + */ + +static unsigned long snd_cs4231_timer_resolution(snd_timer_t *timer) +{ + cs4231_t *chip = snd_timer_chip(timer); + + return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920; +} + +static int snd_cs4231_timer_start(snd_timer_t *timer) +{ + unsigned long flags; + unsigned int ticks; + cs4231_t *chip = snd_timer_chip(timer); + + spin_lock_irqsave(&chip->lock, flags); + ticks = timer->sticks; + if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 || + (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] || + (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) { + snd_cs4231_out(chip, CS4231_TIMER_HIGH, + chip->image[CS4231_TIMER_HIGH] = + (unsigned char) (ticks >> 8)); + snd_cs4231_out(chip, CS4231_TIMER_LOW, + chip->image[CS4231_TIMER_LOW] = + (unsigned char) ticks); + snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, + chip->image[CS4231_ALT_FEATURE_1] | CS4231_TIMER_ENABLE); + } + spin_unlock_irqrestore(&chip->lock, flags); + + return 0; +} + +static int snd_cs4231_timer_stop(snd_timer_t *timer) +{ + unsigned long flags; + cs4231_t *chip = snd_timer_chip(timer); + + spin_lock_irqsave(&chip->lock, flags); + snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, + chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE); + spin_unlock_irqrestore(&chip->lock, flags); + + return 0; +} + +static void snd_cs4231_init(cs4231_t *chip) +{ + unsigned long flags; + + snd_cs4231_mce_down(chip); + +#ifdef SNDRV_DEBUG_MCE + snd_printk("init: (1)\n"); +#endif + snd_cs4231_mce_up(chip); + spin_lock_irqsave(&chip->lock, flags); + chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO | + CS4231_RECORD_ENABLE | CS4231_RECORD_PIO | + CS4231_CALIB_MODE); + chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB; + snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]); + spin_unlock_irqrestore(&chip->lock, flags); + snd_cs4231_mce_down(chip); + +#ifdef SNDRV_DEBUG_MCE + snd_printk("init: (2)\n"); +#endif + + snd_cs4231_mce_up(chip); + spin_lock_irqsave(&chip->lock, flags); + snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1]); + spin_unlock_irqrestore(&chip->lock, flags); + snd_cs4231_mce_down(chip); + +#ifdef SNDRV_DEBUG_MCE + snd_printk("init: (3) - afei = 0x%x\n", chip->image[CS4231_ALT_FEATURE_1]); +#endif + + spin_lock_irqsave(&chip->lock, flags); + snd_cs4231_out(chip, CS4231_ALT_FEATURE_2, chip->image[CS4231_ALT_FEATURE_2]); + spin_unlock_irqrestore(&chip->lock, flags); + + snd_cs4231_mce_up(chip); + spin_lock_irqsave(&chip->lock, flags); + snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT]); + spin_unlock_irqrestore(&chip->lock, flags); + snd_cs4231_mce_down(chip); + +#ifdef SNDRV_DEBUG_MCE + snd_printk("init: (4)\n"); +#endif + + snd_cs4231_mce_up(chip); + spin_lock_irqsave(&chip->lock, flags); + snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT]); + spin_unlock_irqrestore(&chip->lock, flags); + snd_cs4231_mce_down(chip); + +#ifdef SNDRV_DEBUG_MCE + snd_printk("init: (5)\n"); +#endif +} + +static int snd_cs4231_open(cs4231_t *chip, unsigned int mode) +{ + unsigned long flags; + + down(&chip->open_mutex); + if ((chip->mode & mode)) { + up(&chip->open_mutex); + return -EAGAIN; + } + if (chip->mode & CS4231_MODE_OPEN) { + chip->mode |= mode; + up(&chip->open_mutex); + return 0; + } + /* ok. now enable and ack CODEC IRQ */ + spin_lock_irqsave(&chip->lock, flags); + snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ | + CS4231_RECORD_IRQ | + CS4231_TIMER_IRQ); + snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0); + __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */ + __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */ + + snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ | + CS4231_RECORD_IRQ | + CS4231_TIMER_IRQ); + snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0); + spin_unlock_irqrestore(&chip->lock, flags); + + chip->mode = mode; + up(&chip->open_mutex); + return 0; +} + +static void snd_cs4231_close(cs4231_t *chip, unsigned int mode) +{ + unsigned long flags; + + down(&chip->open_mutex); + chip->mode &= ~mode; + if (chip->mode & CS4231_MODE_OPEN) { + up(&chip->open_mutex); + return; + } + snd_cs4231_calibrate_mute(chip, 1); + + /* disable IRQ */ + spin_lock_irqsave(&chip->lock, flags); + snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0); + __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */ + __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */ + + /* now disable record & playback */ + + if (chip->image[CS4231_IFACE_CTRL] & + (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO | + CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) { + spin_unlock_irqrestore(&chip->lock, flags); + snd_cs4231_mce_up(chip); + spin_lock_irqsave(&chip->lock, flags); + chip->image[CS4231_IFACE_CTRL] &= + ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO | + CS4231_RECORD_ENABLE | CS4231_RECORD_PIO); + snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]); + spin_unlock_irqrestore(&chip->lock, flags); + snd_cs4231_mce_down(chip); + spin_lock_irqsave(&chip->lock, flags); + } + + /* clear IRQ again */ + snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0); + __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */ + __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */ + spin_unlock_irqrestore(&chip->lock, flags); + + snd_cs4231_calibrate_mute(chip, 0); + + chip->mode = 0; + up(&chip->open_mutex); +} + +/* + * timer open/close + */ + +static int snd_cs4231_timer_open(snd_timer_t *timer) +{ + cs4231_t *chip = snd_timer_chip(timer); + snd_cs4231_open(chip, CS4231_MODE_TIMER); + return 0; +} + +static int snd_cs4231_timer_close(snd_timer_t * timer) +{ + cs4231_t *chip = snd_timer_chip(timer); + snd_cs4231_close(chip, CS4231_MODE_TIMER); + return 0; +} + +static struct _snd_timer_hardware snd_cs4231_timer_table = +{ + .flags = SNDRV_TIMER_HW_AUTO, + .resolution = 9945, + .ticks = 65535, + .open = snd_cs4231_timer_open, + .close = snd_cs4231_timer_close, + .c_resolution = snd_cs4231_timer_resolution, + .start = snd_cs4231_timer_start, + .stop = snd_cs4231_timer_stop, +}; + +/* + * ok.. exported functions.. + */ + +static int snd_cs4231_playback_hw_params(snd_pcm_substream_t *substream, + snd_pcm_hw_params_t *hw_params) +{ + cs4231_t *chip = snd_pcm_substream_chip(substream); + unsigned char new_pdfr; + int err; + + if ((err = snd_pcm_lib_malloc_pages(substream, + params_buffer_bytes(hw_params))) < 0) + return err; + new_pdfr = snd_cs4231_get_format(chip, params_format(hw_params), + params_channels(hw_params)) | + snd_cs4231_get_rate(params_rate(hw_params)); + snd_cs4231_playback_format(chip, hw_params, new_pdfr); + + return 0; +} + +static int snd_cs4231_playback_hw_free(snd_pcm_substream_t *substream) +{ + return snd_pcm_lib_free_pages(substream); +} + +static int snd_cs4231_playback_prepare(snd_pcm_substream_t *substream) +{ + cs4231_t *chip = snd_pcm_substream_chip(substream); + unsigned long flags; + + spin_lock_irqsave(&chip->lock, flags); + chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | + CS4231_PLAYBACK_PIO); + spin_unlock_irqrestore(&chip->lock, flags); + + return 0; +} + +static int snd_cs4231_capture_hw_params(snd_pcm_substream_t *substream, + snd_pcm_hw_params_t *hw_params) +{ + cs4231_t *chip = snd_pcm_substream_chip(substream); + unsigned char new_cdfr; + int err; + + if ((err = snd_pcm_lib_malloc_pages(substream, + params_buffer_bytes(hw_params))) < 0) + return err; + new_cdfr = snd_cs4231_get_format(chip, params_format(hw_params), + params_channels(hw_params)) | + snd_cs4231_get_rate(params_rate(hw_params)); + snd_cs4231_capture_format(chip, hw_params, new_cdfr); + + return 0; +} + +static int snd_cs4231_capture_hw_free(snd_pcm_substream_t *substream) +{ + return snd_pcm_lib_free_pages(substream); +} + +static int snd_cs4231_capture_prepare(snd_pcm_substream_t *substream) +{ + cs4231_t *chip = snd_pcm_substream_chip(substream); + unsigned long flags; + + spin_lock_irqsave(&chip->lock, flags); + chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE | + CS4231_RECORD_PIO); + + spin_unlock_irqrestore(&chip->lock, flags); + + return 0; +} + +static void snd_cs4231_overrange(cs4231_t *chip) +{ + unsigned long flags; + unsigned char res; + + spin_lock_irqsave(&chip->lock, flags); + res = snd_cs4231_in(chip, CS4231_TEST_INIT); + spin_unlock_irqrestore(&chip->lock, flags); + + if (res & (0x08 | 0x02)) /* detect overrange only above 0dB; may be user selectable? */ + chip->capture_substream->runtime->overrange++; +} + +static void snd_cs4231_generic_interrupt(cs4231_t *chip) +{ + unsigned long flags; + unsigned char status; + + status = snd_cs4231_in(chip, CS4231_IRQ_STATUS); + if (!status) + return; + + if (status & CS4231_TIMER_IRQ) { + if (chip->timer) + snd_timer_interrupt(chip->timer, chip->timer->sticks); + } + if (status & CS4231_PLAYBACK_IRQ) + snd_pcm_period_elapsed(chip->playback_substream); + if (status & CS4231_RECORD_IRQ) { + snd_cs4231_overrange(chip); + snd_pcm_period_elapsed(chip->capture_substream); + } + + /* ACK the CS4231 interrupt. */ + spin_lock_irqsave(&chip->lock, flags); + snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0); + spin_unlock_irqrestore(&chip->lock, flags); +} + +#ifdef SBUS_SUPPORT +static irqreturn_t snd_cs4231_sbus_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + cs4231_t *chip = dev_id; + u32 csr; + + csr = sbus_readl(chip->port + APCCSR); + if (!(csr & (APC_INT_PENDING | + APC_PLAY_INT | + APC_CAPT_INT | + APC_GENL_INT | + APC_XINT_PEMP | + APC_XINT_CEMP))) + return IRQ_NONE; + + /* ACK the APC interrupt. */ + sbus_writel(csr, chip->port + APCCSR); + + snd_cs4231_generic_interrupt(chip); + + return IRQ_HANDLED; +} +#endif + +#ifdef EBUS_SUPPORT +static void snd_cs4231_ebus_play_callback(struct ebus_dma_info *p, int event, void *cookie) +{ + cs4231_t *chip = cookie; + + if (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE) { + snd_pcm_period_elapsed(chip->playback_substream); + snd_cs4231_ebus_advance_dma(p, chip->playback_substream, + &chip->p_periods_sent); + } +} + +static void snd_cs4231_ebus_capture_callback(struct ebus_dma_info *p, int event, void *cookie) +{ + cs4231_t *chip = cookie; + + if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) { + snd_pcm_period_elapsed(chip->capture_substream); + snd_cs4231_ebus_advance_dma(p, chip->capture_substream, + &chip->c_periods_sent); + } +} +#endif + +static snd_pcm_uframes_t snd_cs4231_playback_pointer(snd_pcm_substream_t *substream) +{ + cs4231_t *chip = snd_pcm_substream_chip(substream); + size_t ptr, residue, period_bytes; + + if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) + return 0; + period_bytes = snd_pcm_lib_period_bytes(substream); + ptr = period_bytes * chip->p_periods_sent; +#ifdef EBUS_SUPPORT + if (chip->flags & CS4231_FLAG_EBUS) { + residue = ebus_dma_residue(&chip->eb2p); + } else { +#endif +#ifdef SBUS_SUPPORT + residue = sbus_readl(chip->port + APCPC); +#endif +#ifdef EBUS_SUPPORT + } +#endif + ptr += (period_bytes - residue); + return bytes_to_frames(substream->runtime, ptr); +} + +static snd_pcm_uframes_t snd_cs4231_capture_pointer(snd_pcm_substream_t * substream) +{ + cs4231_t *chip = snd_pcm_substream_chip(substream); + size_t ptr, residue, period_bytes; + + if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE)) + return 0; + period_bytes = snd_pcm_lib_period_bytes(substream); + ptr = period_bytes * chip->c_periods_sent; +#ifdef EBUS_SUPPORT + if (chip->flags & CS4231_FLAG_EBUS) { + residue = ebus_dma_residue(&chip->eb2c); + } else { +#endif +#ifdef SBUS_SUPPORT + residue = sbus_readl(chip->port + APCCC); +#endif +#ifdef EBUS_SUPPORT + } +#endif + ptr += (period_bytes - residue); + return bytes_to_frames(substream->runtime, ptr); +} + +/* + + */ + +static int snd_cs4231_probe(cs4231_t *chip) +{ + unsigned long flags; + int i, id, vers; + unsigned char *ptr; + +#if 0 + snd_cs4231_debug(chip); +#endif + id = vers = 0; + for (i = 0; i < 50; i++) { + mb(); + if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT) + udelay(2000); + else { + spin_lock_irqsave(&chip->lock, flags); + snd_cs4231_out(chip, CS4231_MISC_INFO, CS4231_MODE2); + id = snd_cs4231_in(chip, CS4231_MISC_INFO) & 0x0f; + vers = snd_cs4231_in(chip, CS4231_VERSION); + spin_unlock_irqrestore(&chip->lock, flags); + if (id == 0x0a) + break; /* this is valid value */ + } + } + snd_printdd("cs4231: port = %p, id = 0x%x\n", chip->port, id); + if (id != 0x0a) + return -ENODEV; /* no valid device found */ + + spin_lock_irqsave(&chip->lock, flags); + + + /* Reset DMA engine. */ +#ifdef EBUS_SUPPORT + if (chip->flags & CS4231_FLAG_EBUS) { + /* Done by ebus_dma_register */ + } else { +#endif +#ifdef SBUS_SUPPORT + sbus_writel(APC_CHIP_RESET, chip->port + APCCSR); + sbus_writel(0x00, chip->port + APCCSR); + sbus_writel(sbus_readl(chip->port + APCCSR) | APC_CDC_RESET, + chip->port + APCCSR); + + udelay(20); + + sbus_writel(sbus_readl(chip->port + APCCSR) & ~APC_CDC_RESET, + chip->port + APCCSR); + sbus_writel(sbus_readl(chip->port + APCCSR) | (APC_XINT_ENA | + APC_XINT_PENA | + APC_XINT_CENA), + chip->port + APCCSR); +#endif +#ifdef EBUS_SUPPORT + } +#endif + + __cs4231_readb(chip, CS4231P(chip, STATUS)); /* clear any pendings IRQ */ + __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); + mb(); + + spin_unlock_irqrestore(&chip->lock, flags); + + chip->image[CS4231_MISC_INFO] = CS4231_MODE2; + chip->image[CS4231_IFACE_CTRL] = + chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA; + chip->image[CS4231_ALT_FEATURE_1] = 0x80; + chip->image[CS4231_ALT_FEATURE_2] = 0x01; + if (vers & 0x20) + chip->image[CS4231_ALT_FEATURE_2] |= 0x02; + + ptr = (unsigned char *) &chip->image; + + snd_cs4231_mce_down(chip); + + spin_lock_irqsave(&chip->lock, flags); + + for (i = 0; i < 32; i++) /* ok.. fill all CS4231 registers */ + snd_cs4231_out(chip, i, *ptr++); + + spin_unlock_irqrestore(&chip->lock, flags); + + snd_cs4231_mce_up(chip); + + snd_cs4231_mce_down(chip); + + mdelay(2); + + return 0; /* all things are ok.. */ +} + +static snd_pcm_hardware_t snd_cs4231_playback = +{ + .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START), + .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | + SNDRV_PCM_FMTBIT_IMA_ADPCM | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S16_BE), + .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000, + .rate_min = 5510, + .rate_max = 48000, + .channels_min = 1, + .channels_max = 2, + .buffer_bytes_max = (32*1024), + .period_bytes_min = 4096, + .period_bytes_max = (32*1024), + .periods_min = 1, + .periods_max = 1024, +}; + +static snd_pcm_hardware_t snd_cs4231_capture = +{ + .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START), + .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | + SNDRV_PCM_FMTBIT_IMA_ADPCM | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S16_BE), + .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000, + .rate_min = 5510, + .rate_max = 48000, + .channels_min = 1, + .channels_max = 2, + .buffer_bytes_max = (32*1024), + .period_bytes_min = 4096, + .period_bytes_max = (32*1024), + .periods_min = 1, + .periods_max = 1024, +}; + +static int snd_cs4231_playback_open(snd_pcm_substream_t *substream) +{ + cs4231_t *chip = snd_pcm_substream_chip(substream); + snd_pcm_runtime_t *runtime = substream->runtime; + int err; + + runtime->hw = snd_cs4231_playback; + + if ((err = snd_cs4231_open(chip, CS4231_MODE_PLAY)) < 0) { + snd_free_pages(runtime->dma_area, runtime->dma_bytes); + return err; + } + chip->playback_substream = substream; + chip->p_periods_sent = 0; + snd_pcm_set_sync(substream); + snd_cs4231_xrate(runtime); + + return 0; +} + +static int snd_cs4231_capture_open(snd_pcm_substream_t *substream) +{ + cs4231_t *chip = snd_pcm_substream_chip(substream); + snd_pcm_runtime_t *runtime = substream->runtime; + int err; + + runtime->hw = snd_cs4231_capture; + + if ((err = snd_cs4231_open(chip, CS4231_MODE_RECORD)) < 0) { + snd_free_pages(runtime->dma_area, runtime->dma_bytes); + return err; + } + chip->capture_substream = substream; + chip->c_periods_sent = 0; + snd_pcm_set_sync(substream); + snd_cs4231_xrate(runtime); + + return 0; +} + +static int snd_cs4231_playback_close(snd_pcm_substream_t *substream) +{ + cs4231_t *chip = snd_pcm_substream_chip(substream); + + chip->playback_substream = NULL; + snd_cs4231_close(chip, CS4231_MODE_PLAY); + + return 0; +} + +static int snd_cs4231_capture_close(snd_pcm_substream_t *substream) +{ + cs4231_t *chip = snd_pcm_substream_chip(substream); + + chip->capture_substream = NULL; + snd_cs4231_close(chip, CS4231_MODE_RECORD); + + return 0; +} + +/* XXX We can do some power-management, in particular on EBUS using + * XXX the audio AUXIO register... + */ + +static snd_pcm_ops_t snd_cs4231_playback_ops = { + .open = snd_cs4231_playback_open, + .close = snd_cs4231_playback_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = snd_cs4231_playback_hw_params, + .hw_free = snd_cs4231_playback_hw_free, + .prepare = snd_cs4231_playback_prepare, + .trigger = snd_cs4231_trigger, + .pointer = snd_cs4231_playback_pointer, +}; + +static snd_pcm_ops_t snd_cs4231_capture_ops = { + .open = snd_cs4231_capture_open, + .close = snd_cs4231_capture_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = snd_cs4231_capture_hw_params, + .hw_free = snd_cs4231_capture_hw_free, + .prepare = snd_cs4231_capture_prepare, + .trigger = snd_cs4231_trigger, + .pointer = snd_cs4231_capture_pointer, +}; + +static void snd_cs4231_pcm_free(snd_pcm_t *pcm) +{ + cs4231_t *chip = pcm->private_data; + chip->pcm = NULL; + snd_pcm_lib_preallocate_free_for_all(pcm); +} + +int snd_cs4231_pcm(cs4231_t *chip) +{ + snd_pcm_t *pcm; + int err; + + if ((err = snd_pcm_new(chip->card, "CS4231", 0, 1, 1, &pcm)) < 0) + return err; + + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs4231_playback_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs4231_capture_ops); + + /* global setup */ + pcm->private_data = chip; + pcm->private_free = snd_cs4231_pcm_free; + pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; + strcpy(pcm->name, "CS4231"); + +#ifdef EBUS_SUPPORT + if (chip->flags & CS4231_FLAG_EBUS) { + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, + snd_dma_pci_data(chip->dev_u.pdev), + 64*1024, 128*1024); + } else { +#endif +#ifdef SBUS_SUPPORT + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_SBUS, + snd_dma_sbus_data(chip->dev_u.sdev), + 64*1024, 128*1024); +#endif +#ifdef EBUS_SUPPORT + } +#endif + + chip->pcm = pcm; + + return 0; +} + +static void snd_cs4231_timer_free(snd_timer_t *timer) +{ + cs4231_t *chip = timer->private_data; + chip->timer = NULL; +} + +int snd_cs4231_timer(cs4231_t *chip) +{ + snd_timer_t *timer; + snd_timer_id_t tid; + int err; + + /* Timer initialization */ + tid.dev_class = SNDRV_TIMER_CLASS_CARD; + tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; + tid.card = chip->card->number; + tid.device = 0; + tid.subdevice = 0; + if ((err = snd_timer_new(chip->card, "CS4231", &tid, &timer)) < 0) + return err; + strcpy(timer->name, "CS4231"); + timer->private_data = chip; + timer->private_free = snd_cs4231_timer_free; + timer->hw = snd_cs4231_timer_table; + chip->timer = timer; + + return 0; +} + +/* + * MIXER part + */ + +static int snd_cs4231_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo) +{ + static char *texts[4] = { + "Line", "CD", "Mic", "Mix" + }; + cs4231_t *chip = snd_kcontrol_chip(kcontrol); + + snd_assert(chip->card != NULL, return -EINVAL); + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 2; + uinfo->value.enumerated.items = 4; + if (uinfo->value.enumerated.item > 3) + uinfo->value.enumerated.item = 3; + strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); + + return 0; +} + +static int snd_cs4231_get_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) +{ + cs4231_t *chip = snd_kcontrol_chip(kcontrol); + unsigned long flags; + + spin_lock_irqsave(&chip->lock, flags); + ucontrol->value.enumerated.item[0] = + (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6; + ucontrol->value.enumerated.item[1] = + (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6; + spin_unlock_irqrestore(&chip->lock, flags); + + return 0; +} + +static int snd_cs4231_put_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) +{ + cs4231_t *chip = snd_kcontrol_chip(kcontrol); + unsigned long flags; + unsigned short left, right; + int change; + + if (ucontrol->value.enumerated.item[0] > 3 || + ucontrol->value.enumerated.item[1] > 3) + return -EINVAL; + left = ucontrol->value.enumerated.item[0] << 6; + right = ucontrol->value.enumerated.item[1] << 6; + + spin_lock_irqsave(&chip->lock, flags); + + left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left; + right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right; + change = left != chip->image[CS4231_LEFT_INPUT] || + right != chip->image[CS4231_RIGHT_INPUT]; + snd_cs4231_out(chip, CS4231_LEFT_INPUT, left); + snd_cs4231_out(chip, CS4231_RIGHT_INPUT, right); + + spin_unlock_irqrestore(&chip->lock, flags); + + return change; +} + +int snd_cs4231_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo) +{ + int mask = (kcontrol->private_value >> 16) & 0xff; + + uinfo->type = (mask == 1) ? + SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = mask; + + return 0; +} + +int snd_cs4231_get_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) +{ + cs4231_t *chip = snd_kcontrol_chip(kcontrol); + unsigned long flags; + int reg = kcontrol->private_value & 0xff; + int shift = (kcontrol->private_value >> 8) & 0xff; + int mask = (kcontrol->private_value >> 16) & 0xff; + int invert = (kcontrol->private_value >> 24) & 0xff; + + spin_lock_irqsave(&chip->lock, flags); + + ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask; + + spin_unlock_irqrestore(&chip->lock, flags); + + if (invert) + ucontrol->value.integer.value[0] = + (mask - ucontrol->value.integer.value[0]); + + return 0; +} + +int snd_cs4231_put_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) +{ + cs4231_t *chip = snd_kcontrol_chip(kcontrol); + unsigned long flags; + int reg = kcontrol->private_value & 0xff; + int shift = (kcontrol->private_value >> 8) & 0xff; + int mask = (kcontrol->private_value >> 16) & 0xff; + int invert = (kcontrol->private_value >> 24) & 0xff; + int change; + unsigned short val; + + val = (ucontrol->value.integer.value[0] & mask); + if (invert) + val = mask - val; + val <<= shift; + + spin_lock_irqsave(&chip->lock, flags); + + val = (chip->image[reg] & ~(mask << shift)) | val; + change = val != chip->image[reg]; + snd_cs4231_out(chip, reg, val); + + spin_unlock_irqrestore(&chip->lock, flags); + + return change; +} + +int snd_cs4231_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo) +{ + int mask = (kcontrol->private_value >> 24) & 0xff; + + uinfo->type = mask == 1 ? + SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 2; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = mask; + + return 0; +} + +int snd_cs4231_get_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) +{ + cs4231_t *chip = snd_kcontrol_chip(kcontrol); + unsigned long flags; + int left_reg = kcontrol->private_value & 0xff; + int right_reg = (kcontrol->private_value >> 8) & 0xff; + int shift_left = (kcontrol->private_value >> 16) & 0x07; + int shift_right = (kcontrol->private_value >> 19) & 0x07; + int mask = (kcontrol->private_value >> 24) & 0xff; + int invert = (kcontrol->private_value >> 22) & 1; + + spin_lock_irqsave(&chip->lock, flags); + + ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask; + ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask; + + spin_unlock_irqrestore(&chip->lock, flags); + + if (invert) { + ucontrol->value.integer.value[0] = + (mask - ucontrol->value.integer.value[0]); + ucontrol->value.integer.value[1] = + (mask - ucontrol->value.integer.value[1]); + } + + return 0; +} + +int snd_cs4231_put_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) +{ + cs4231_t *chip = snd_kcontrol_chip(kcontrol); + unsigned long flags; + int left_reg = kcontrol->private_value & 0xff; + int right_reg = (kcontrol->private_value >> 8) & 0xff; + int shift_left = (kcontrol->private_value >> 16) & 0x07; + int shift_right = (kcontrol->private_value >> 19) & 0x07; + int mask = (kcontrol->private_value >> 24) & 0xff; + int invert = (kcontrol->private_value >> 22) & 1; + int change; + unsigned short val1, val2; + + val1 = ucontrol->value.integer.value[0] & mask; + val2 = ucontrol->value.integer.value[1] & mask; + if (invert) { + val1 = mask - val1; + val2 = mask - val2; + } + val1 <<= shift_left; + val2 <<= shift_right; + + spin_lock_irqsave(&chip->lock, flags); + + val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1; + val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2; + change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg]; + snd_cs4231_out(chip, left_reg, val1); + snd_cs4231_out(chip, right_reg, val2); + + spin_unlock_irqrestore(&chip->lock, flags); + + return change; +} + +#define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ + .info = snd_cs4231_info_single, \ + .get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \ + .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) } + +#define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ + .info = snd_cs4231_info_double, \ + .get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \ + .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) } + +static snd_kcontrol_new_t snd_cs4231_controls[] = { +CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1), +CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1), +CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1), +CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1), +CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1), +CS4231_DOUBLE("Aux Playback Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1), +CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1), +CS4231_DOUBLE("Aux Playback Volume", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1), +CS4231_SINGLE("Mono Playback Switch", 0, CS4231_MONO_CTRL, 7, 1, 1), +CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1), +CS4231_SINGLE("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, 6, 1, 1), +CS4231_SINGLE("Mono Output Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0), +CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0), +{ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Capture Source", + .info = snd_cs4231_info_mux, + .get = snd_cs4231_get_mux, + .put = snd_cs4231_put_mux, +}, +CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1, 0), +CS4231_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0), +CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1), +/* SPARC specific uses of XCTL{0,1} general purpose outputs. */ +CS4231_SINGLE("Line Out Switch", 0, CS4231_PIN_CTRL, 6, 1, 1), +CS4231_SINGLE("Headphone Out Switch", 0, CS4231_PIN_CTRL, 7, 1, 1) +}; + +int snd_cs4231_mixer(cs4231_t *chip) +{ + snd_card_t *card; + int err, idx; + + snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL); + + card = chip->card; + + strcpy(card->mixername, chip->pcm->name); + + for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) { + if ((err = snd_ctl_add(card, + snd_ctl_new1(&snd_cs4231_controls[idx], + chip))) < 0) + return err; + } + return 0; +} + +static int dev; + +static int cs4231_attach_begin(snd_card_t **rcard) +{ + snd_card_t *card; + + *rcard = NULL; + + if (dev >= SNDRV_CARDS) + return -ENODEV; + + if (!enable[dev]) { + dev++; + return -ENOENT; + } + + card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); + if (card == NULL) + return -ENOMEM; + + strcpy(card->driver, "CS4231"); + strcpy(card->shortname, "Sun CS4231"); + + *rcard = card; + return 0; +} + +static int cs4231_attach_finish(snd_card_t *card, cs4231_t *chip) +{ + int err; + + if ((err = snd_cs4231_pcm(chip)) < 0) + goto out_err; + + if ((err = snd_cs4231_mixer(chip)) < 0) + goto out_err; + + if ((err = snd_cs4231_timer(chip)) < 0) + goto out_err; + + if ((err = snd_card_register(card)) < 0) + goto out_err; + + chip->next = cs4231_list; + cs4231_list = chip; + + dev++; + return 0; + +out_err: + snd_card_free(card); + return err; +} + +#ifdef SBUS_SUPPORT +static int snd_cs4231_sbus_free(cs4231_t *chip) +{ + if (chip->irq[0]) + free_irq(chip->irq[0], chip); + + if (chip->port) + sbus_iounmap(chip->port, chip->regs_size); + + if (chip->timer) + snd_device_free(chip->card, chip->timer); + + kfree(chip); + + return 0; +} + +static int snd_cs4231_sbus_dev_free(snd_device_t *device) +{ + cs4231_t *cp = device->device_data; + + return snd_cs4231_sbus_free(cp); +} + +static snd_device_ops_t snd_cs4231_sbus_dev_ops = { + .dev_free = snd_cs4231_sbus_dev_free, +}; + +static int __init snd_cs4231_sbus_create(snd_card_t *card, + struct sbus_dev *sdev, + int dev, + cs4231_t **rchip) +{ + cs4231_t *chip; + int err; + + *rchip = NULL; + chip = kcalloc(1, sizeof(*chip), GFP_KERNEL); + if (chip == NULL) + return -ENOMEM; + + spin_lock_init(&chip->lock); + init_MUTEX(&chip->mce_mutex); + init_MUTEX(&chip->open_mutex); + chip->card = card; + chip->dev_u.sdev = sdev; + chip->regs_size = sdev->reg_addrs[0].reg_size; + memcpy(&chip->image, &snd_cs4231_original_image, + sizeof(snd_cs4231_original_image)); + + chip->port = sbus_ioremap(&sdev->resource[0], 0, + chip->regs_size, "cs4231"); + if (!chip->port) { + snd_printk("cs4231-%d: Unable to map chip registers.\n", dev); + return -EIO; + } + + if (request_irq(sdev->irqs[0], snd_cs4231_sbus_interrupt, + SA_SHIRQ, "cs4231", chip)) { + snd_printk("cs4231-%d: Unable to grab SBUS IRQ %s\n", + dev, + __irq_itoa(sdev->irqs[0])); + snd_cs4231_sbus_free(chip); + return -EBUSY; + } + chip->irq[0] = sdev->irqs[0]; + + if (snd_cs4231_probe(chip) < 0) { + snd_cs4231_sbus_free(chip); + return -ENODEV; + } + snd_cs4231_init(chip); + + if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, + chip, &snd_cs4231_sbus_dev_ops)) < 0) { + snd_cs4231_sbus_free(chip); + return err; + } + + *rchip = chip; + return 0; +} + +static int cs4231_sbus_attach(struct sbus_dev *sdev) +{ + struct resource *rp = &sdev->resource[0]; + cs4231_t *cp; + snd_card_t *card; + int err; + + err = cs4231_attach_begin(&card); + if (err) + return err; + + sprintf(card->longname, "%s at 0x%02lx:0x%08lx, irq %s", + card->shortname, + rp->flags & 0xffL, + rp->start, + __irq_itoa(sdev->irqs[0])); + + if ((err = snd_cs4231_sbus_create(card, sdev, dev, &cp)) < 0) { + snd_card_free(card); + return err; + } + + return cs4231_attach_finish(card, cp); +} +#endif + +#ifdef EBUS_SUPPORT +static int snd_cs4231_ebus_free(cs4231_t *chip) +{ + if (chip->eb2c.regs) { + ebus_dma_unregister(&chip->eb2c); + iounmap(chip->eb2c.regs); + } + if (chip->eb2p.regs) { + ebus_dma_unregister(&chip->eb2p); + iounmap(chip->eb2p.regs); + } + + if (chip->port) + iounmap(chip->port); + if (chip->timer) + snd_device_free(chip->card, chip->timer); + + kfree(chip); + + return 0; +} + +static int snd_cs4231_ebus_dev_free(snd_device_t *device) +{ + cs4231_t *cp = device->device_data; + + return snd_cs4231_ebus_free(cp); +} + +static snd_device_ops_t snd_cs4231_ebus_dev_ops = { + .dev_free = snd_cs4231_ebus_dev_free, +}; + +static int __init snd_cs4231_ebus_create(snd_card_t *card, + struct linux_ebus_device *edev, + int dev, + cs4231_t **rchip) +{ + cs4231_t *chip; + int err; + + *rchip = NULL; + chip = kcalloc(1, sizeof(*chip), GFP_KERNEL); + if (chip == NULL) + return -ENOMEM; + + spin_lock_init(&chip->lock); + spin_lock_init(&chip->eb2c.lock); + spin_lock_init(&chip->eb2p.lock); + init_MUTEX(&chip->mce_mutex); + init_MUTEX(&chip->open_mutex); + chip->flags |= CS4231_FLAG_EBUS; + chip->card = card; + chip->dev_u.pdev = edev->bus->self; + memcpy(&chip->image, &snd_cs4231_original_image, + sizeof(snd_cs4231_original_image)); + strcpy(chip->eb2c.name, "cs4231(capture)"); + chip->eb2c.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER; + chip->eb2c.callback = snd_cs4231_ebus_capture_callback; + chip->eb2c.client_cookie = chip; + chip->eb2c.irq = edev->irqs[0]; + strcpy(chip->eb2p.name, "cs4231(play)"); + chip->eb2p.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER; + chip->eb2p.callback = snd_cs4231_ebus_play_callback; + chip->eb2p.client_cookie = chip; + chip->eb2p.irq = edev->irqs[1]; + + chip->port = ioremap(edev->resource[0].start, 0x10); + chip->eb2p.regs = ioremap(edev->resource[1].start, 0x10); + chip->eb2c.regs = ioremap(edev->resource[2].start, 0x10); + if (!chip->port || !chip->eb2p.regs || !chip->eb2c.regs) { + snd_cs4231_ebus_free(chip); + snd_printk("cs4231-%d: Unable to map chip registers.\n", dev); + return -EIO; + } + + if (ebus_dma_register(&chip->eb2c)) { + snd_cs4231_ebus_free(chip); + snd_printk("cs4231-%d: Unable to register EBUS capture DMA\n", dev); + return -EBUSY; + } + if (ebus_dma_irq_enable(&chip->eb2c, 1)) { + snd_cs4231_ebus_free(chip); + snd_printk("cs4231-%d: Unable to enable EBUS capture IRQ\n", dev); + return -EBUSY; + } + + if (ebus_dma_register(&chip->eb2p)) { + snd_cs4231_ebus_free(chip); + snd_printk("cs4231-%d: Unable to register EBUS play DMA\n", dev); + return -EBUSY; + } + if (ebus_dma_irq_enable(&chip->eb2p, 1)) { + snd_cs4231_ebus_free(chip); + snd_printk("cs4231-%d: Unable to enable EBUS play IRQ\n", dev); + return -EBUSY; + } + + if (snd_cs4231_probe(chip) < 0) { + snd_cs4231_ebus_free(chip); + return -ENODEV; + } + snd_cs4231_init(chip); + + if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, + chip, &snd_cs4231_ebus_dev_ops)) < 0) { + snd_cs4231_ebus_free(chip); + return err; + } + + *rchip = chip; + return 0; +} + +static int cs4231_ebus_attach(struct linux_ebus_device *edev) +{ + snd_card_t *card; + cs4231_t *chip; + int err; + + err = cs4231_attach_begin(&card); + if (err) + return err; + + sprintf(card->longname, "%s at 0x%lx, irq %s", + card->shortname, + edev->resource[0].start, + __irq_itoa(edev->irqs[0])); + + if ((err = snd_cs4231_ebus_create(card, edev, dev, &chip)) < 0) { + snd_card_free(card); + return err; + } + + return cs4231_attach_finish(card, chip); +} +#endif + +static int __init cs4231_init(void) +{ +#ifdef SBUS_SUPPORT + struct sbus_bus *sbus; + struct sbus_dev *sdev; +#endif +#ifdef EBUS_SUPPORT + struct linux_ebus *ebus; + struct linux_ebus_device *edev; +#endif + int found; + + found = 0; + +#ifdef SBUS_SUPPORT + for_all_sbusdev(sdev, sbus) { + if (!strcmp(sdev->prom_name, "SUNW,CS4231")) { + if (cs4231_sbus_attach(sdev) == 0) + found++; + } + } +#endif +#ifdef EBUS_SUPPORT + for_each_ebus(ebus) { + for_each_ebusdev(edev, ebus) { + int match = 0; + + if (!strcmp(edev->prom_name, "SUNW,CS4231")) { + match = 1; + } else if (!strcmp(edev->prom_name, "audio")) { + char compat[16]; + + prom_getstring(edev->prom_node, "compatible", + compat, sizeof(compat)); + compat[15] = '\0'; + if (!strcmp(compat, "SUNW,CS4231")) + match = 1; + } + + if (match && + cs4231_ebus_attach(edev) == 0) + found++; + } + } +#endif + + + return (found > 0) ? 0 : -EIO; +} + +static void __exit cs4231_exit(void) +{ + cs4231_t *p = cs4231_list; + + while (p != NULL) { + cs4231_t *next = p->next; + + snd_card_free(p->card); + + p = next; + } + + cs4231_list = NULL; +} + +module_init(cs4231_init); +module_exit(cs4231_exit); |