diff options
| -rw-r--r-- | drivers/media/dvb/frontends/au8522.c | 133 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/au8522.h | 17 | ||||
| -rw-r--r-- | drivers/media/video/au0828/au0828-dvb.c | 39 |
3 files changed, 188 insertions, 1 deletions
diff --git a/drivers/media/dvb/frontends/au8522.c b/drivers/media/dvb/frontends/au8522.c index 0b82cc2a1e16..eabf9a68e7ec 100644 --- a/drivers/media/dvb/frontends/au8522.c +++ b/drivers/media/dvb/frontends/au8522.c @@ -40,6 +40,8 @@ struct au8522_state { u32 current_frequency; fe_modulation_t current_modulation; + u32 fe_status; + unsigned int led_state; }; static int debug; @@ -538,11 +540,98 @@ static int au8522_init(struct dvb_frontend *fe) return 0; } +static int au8522_led_gpio_enable(struct au8522_state *state, int onoff) +{ + struct au8522_led_config *led_config = state->config->led_cfg; + u8 val; + + /* bail out if we cant control an LED */ + if (!led_config || !led_config->gpio_output || + !led_config->gpio_output_enable || !led_config->gpio_output_disable) + return 0; + + val = au8522_readreg(state, 0x4000 | + (led_config->gpio_output & ~0xc000)); + if (onoff) { + /* enable GPIO output */ + val &= ~((led_config->gpio_output_enable >> 8) & 0xff); + val |= (led_config->gpio_output_enable & 0xff); + } else { + /* disable GPIO output */ + val &= ~((led_config->gpio_output_disable >> 8) & 0xff); + val |= (led_config->gpio_output_disable & 0xff); + } + return au8522_writereg(state, 0x8000 | + (led_config->gpio_output & ~0xc000), val); +} + +/* led = 0 | off + * led = 1 | signal ok + * led = 2 | signal strong + * led < 0 | only light led if leds are currently off + */ +static int au8522_led_ctrl(struct au8522_state *state, int led) +{ + struct au8522_led_config *led_config = state->config->led_cfg; + int i, ret = 0; + + /* bail out if we cant control an LED */ + if (!led_config || !led_config->gpio_leds || + !led_config->num_led_states || !led_config->led_states) + return 0; + + if (led < 0) { + /* if LED is already lit, then leave it as-is */ + if (state->led_state) + return 0; + else + led *= -1; + } + + /* toggle LED if changing state */ + if (state->led_state != led) { + u8 val; + + dprintk("%s: %d\n", __func__, led); + + au8522_led_gpio_enable(state, 1); + + val = au8522_readreg(state, 0x4000 | + (led_config->gpio_leds & ~0xc000)); + + /* start with all leds off */ + for (i = 0; i < led_config->num_led_states; i++) + val &= ~led_config->led_states[i]; + + /* set selected LED state */ + if (led < led_config->num_led_states) + val |= led_config->led_states[led]; + else if (led_config->num_led_states) + val |= + led_config->led_states[led_config->num_led_states - 1]; + + ret = au8522_writereg(state, 0x8000 | + (led_config->gpio_leds & ~0xc000), val); + if (ret < 0) + return ret; + + state->led_state = led; + + if (led == 0) + au8522_led_gpio_enable(state, 0); + } + + return 0; +} + static int au8522_sleep(struct dvb_frontend *fe) { struct au8522_state *state = fe->demodulator_priv; dprintk("%s()\n", __func__); + /* turn off led */ + au8522_led_ctrl(state, 0); + state->current_frequency = 0; return 0; @@ -592,12 +681,53 @@ static int au8522_read_status(struct dvb_frontend *fe, fe_status_t *status) *status |= FE_HAS_CARRIER | FE_HAS_SIGNAL; break; } + state->fe_status = *status; + + if (*status & FE_HAS_LOCK) + /* turn on LED, if it isn't on already */ + au8522_led_ctrl(state, -1); + else + /* turn off LED */ + au8522_led_ctrl(state, 0); dprintk("%s() status 0x%08x\n", __func__, *status); return 0; } +static int au8522_led_status(struct au8522_state *state, const u16 *snr) +{ + struct au8522_led_config *led_config = state->config->led_cfg; + int led; + u16 strong; + + /* bail out if we cant control an LED */ + if (!led_config) + return 0; + + if (0 == (state->fe_status & FE_HAS_LOCK)) + return au8522_led_ctrl(state, 0); + else if (state->current_modulation == QAM_256) + strong = led_config->qam256_strong; + else if (state->current_modulation == QAM_64) + strong = led_config->qam64_strong; + else /* (state->current_modulation == VSB_8) */ + strong = led_config->vsb8_strong; + + if (*snr >= strong) + led = 2; + else + led = 1; + + if ((state->led_state) && + (((strong < *snr) ? (*snr - strong) : (strong - *snr)) <= 10)) + /* snr didn't change enough to bother + * changing the color of the led */ + return 0; + + return au8522_led_ctrl(state, led); +} + static int au8522_read_snr(struct dvb_frontend *fe, u16 *snr) { struct au8522_state *state = fe->demodulator_priv; @@ -621,6 +751,9 @@ static int au8522_read_snr(struct dvb_frontend *fe, u16 *snr) au8522_readreg(state, 0x4311), snr); + if (state->config->led_cfg) + au8522_led_status(state, snr); + return ret; } diff --git a/drivers/media/dvb/frontends/au8522.h b/drivers/media/dvb/frontends/au8522.h index 595915ade8c3..7b94f554a093 100644 --- a/drivers/media/dvb/frontends/au8522.h +++ b/drivers/media/dvb/frontends/au8522.h @@ -30,6 +30,21 @@ enum au8522_if_freq { AU8522_IF_3_25MHZ, }; +struct au8522_led_config { + u16 vsb8_strong; + u16 qam64_strong; + u16 qam256_strong; + + u16 gpio_output; + /* unset hi bits, set low bits */ + u16 gpio_output_enable; + u16 gpio_output_disable; + + u16 gpio_leds; + u8 *led_states; + unsigned int num_led_states; +}; + struct au8522_config { /* the demodulator's i2c address */ u8 demod_address; @@ -39,6 +54,8 @@ struct au8522_config { #define AU8522_DEMODLOCKING 1 u8 status_mode; + struct au8522_led_config *led_cfg; + enum au8522_if_freq vsb_if; enum au8522_if_freq qam_if; }; diff --git a/drivers/media/video/au0828/au0828-dvb.c b/drivers/media/video/au0828/au0828-dvb.c index a52abce16e1a..f0fcdb4769d7 100644 --- a/drivers/media/video/au0828/au0828-dvb.c +++ b/drivers/media/video/au0828/au0828-dvb.c @@ -36,11 +36,39 @@ DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); #define _AU0828_BULKPIPE 0x83 #define _BULKPIPESIZE 0xe522 +static u8 hauppauge_hvr950q_led_states[] = { + 0x00, /* off */ + 0x02, /* yellow */ + 0x04, /* green */ +}; + +static struct au8522_led_config hauppauge_hvr950q_led_cfg = { + .gpio_output = 0x00e0, + .gpio_output_enable = 0x6006, + .gpio_output_disable = 0x0660, + + .gpio_leds = 0x00e2, + .led_states = hauppauge_hvr950q_led_states, + .num_led_states = sizeof(hauppauge_hvr950q_led_states), + + .vsb8_strong = 20 /* dB */ * 10, + .qam64_strong = 25 /* dB */ * 10, + .qam256_strong = 32 /* dB */ * 10, +}; + static struct au8522_config hauppauge_hvr950q_config = { .demod_address = 0x8e >> 1, .status_mode = AU8522_DEMODLOCKING, .qam_if = AU8522_IF_6MHZ, .vsb_if = AU8522_IF_6MHZ, + .led_cfg = &hauppauge_hvr950q_led_cfg, +}; + +static struct au8522_config fusionhdtv7usb_config = { + .demod_address = 0x8e >> 1, + .status_mode = AU8522_DEMODLOCKING, + .qam_if = AU8522_IF_6MHZ, + .vsb_if = AU8522_IF_6MHZ, }; static struct au8522_config hauppauge_woodbury_config = { @@ -352,7 +380,6 @@ int au0828_dvb_register(struct au0828_dev *dev) switch (dev->board) { case AU0828_BOARD_HAUPPAUGE_HVR850: case AU0828_BOARD_HAUPPAUGE_HVR950Q: - case AU0828_BOARD_DVICO_FUSIONHDTV7: dvb->frontend = dvb_attach(au8522_attach, &hauppauge_hvr950q_config, &dev->i2c_adap); @@ -378,6 +405,16 @@ int au0828_dvb_register(struct au0828_dev *dev) 0x60, &dev->i2c_adap, &hauppauge_woodbury_tunerconfig); break; + case AU0828_BOARD_DVICO_FUSIONHDTV7: + dvb->frontend = dvb_attach(au8522_attach, + &fusionhdtv7usb_config, + &dev->i2c_adap); + if (dvb->frontend != NULL) { + dvb_attach(xc5000_attach, dvb->frontend, + &dev->i2c_adap, + &hauppauge_hvr950q_tunerconfig); + } + break; default: printk(KERN_WARNING "The frontend of your DVB/ATSC card " "isn't supported yet\n"); |