diff options
Diffstat (limited to 'drivers/media/video/em28xx/em28xx-core.c')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-core.c | 84 |
1 files changed, 54 insertions, 30 deletions
diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c index e33f145d867..57b1b5c6d88 100644 --- a/drivers/media/video/em28xx/em28xx-core.c +++ b/drivers/media/video/em28xx/em28xx-core.c @@ -211,6 +211,7 @@ int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val) { return em28xx_write_regs(dev, reg, &val, 1); } +EXPORT_SYMBOL_GPL(em28xx_write_reg); /* * em28xx_write_reg_bits() @@ -286,6 +287,7 @@ int em28xx_read_ac97(struct em28xx *dev, u8 reg) return ret; return le16_to_cpu(val); } +EXPORT_SYMBOL_GPL(em28xx_read_ac97); /* * em28xx_write_ac97() @@ -313,13 +315,14 @@ int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val) return 0; } +EXPORT_SYMBOL_GPL(em28xx_write_ac97); -struct em28xx_vol_table { +struct em28xx_vol_itable { enum em28xx_amux mux; u8 reg; }; -static struct em28xx_vol_table inputs[] = { +static struct em28xx_vol_itable inputs[] = { { EM28XX_AMUX_VIDEO, AC97_VIDEO_VOL }, { EM28XX_AMUX_LINE_IN, AC97_LINEIN_VOL }, { EM28XX_AMUX_PHONE, AC97_PHONE_VOL }, @@ -403,7 +406,12 @@ static int em28xx_set_audio_source(struct em28xx *dev) return ret; } -static const struct em28xx_vol_table outputs[] = { +struct em28xx_vol_otable { + enum em28xx_aout mux; + u8 reg; +}; + +static const struct em28xx_vol_otable outputs[] = { { EM28XX_AOUT_MASTER, AC97_MASTER_VOL }, { EM28XX_AOUT_LINE, AC97_LINE_LEVEL_VOL }, { EM28XX_AOUT_MONO, AC97_MASTER_MONO_VOL }, @@ -492,17 +500,13 @@ int em28xx_audio_setup(struct em28xx *dev) if (dev->chip_id == CHIP_ID_EM2870 || dev->chip_id == CHIP_ID_EM2874 || dev->chip_id == CHIP_ID_EM28174) { /* Digital only device - don't load any alsa module */ - dev->audio_mode.has_audio = 0; - dev->has_audio_class = 0; - dev->has_alsa_audio = 0; + dev->audio_mode.has_audio = false; + dev->has_audio_class = false; + dev->has_alsa_audio = false; return 0; } - /* If device doesn't support Usb Audio Class, use vendor class */ - if (!dev->has_audio_class) - dev->has_alsa_audio = 1; - - dev->audio_mode.has_audio = 1; + dev->audio_mode.has_audio = true; /* See how this device is configured */ cfg = em28xx_read_reg(dev, EM28XX_R00_CHIPCFG); @@ -512,8 +516,8 @@ int em28xx_audio_setup(struct em28xx *dev) cfg = EM28XX_CHIPCFG_AC97; /* Be conservative */ } else if ((cfg & EM28XX_CHIPCFG_AUDIOMASK) == 0x00) { /* The device doesn't have vendor audio at all */ - dev->has_alsa_audio = 0; - dev->audio_mode.has_audio = 0; + dev->has_alsa_audio = false; + dev->audio_mode.has_audio = false; return 0; } else if ((cfg & EM28XX_CHIPCFG_AUDIOMASK) == EM28XX_CHIPCFG_I2S_3_SAMPRATES) { @@ -542,8 +546,8 @@ int em28xx_audio_setup(struct em28xx *dev) */ em28xx_warn("AC97 chip type couldn't be determined\n"); dev->audio_mode.ac97 = EM28XX_NO_AC97; - dev->has_alsa_audio = 0; - dev->audio_mode.has_audio = 0; + dev->has_alsa_audio = false; + dev->audio_mode.has_audio = false; goto init_audio; } @@ -615,7 +619,9 @@ int em28xx_capture_start(struct em28xx *dev, int start) { int rc; - if (dev->chip_id == CHIP_ID_EM2874 || dev->chip_id == CHIP_ID_EM28174) { + if (dev->chip_id == CHIP_ID_EM2874 || + dev->chip_id == CHIP_ID_EM2884 || + dev->chip_id == CHIP_ID_EM28174) { /* The Transport Stream Enable Register moved in em2874 */ if (!start) { rc = em28xx_write_reg_bits(dev, EM2874_R5F_TS_ENABLE, @@ -884,6 +890,7 @@ int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio) } return rc; } +EXPORT_SYMBOL_GPL(em28xx_gpio_set); int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode) { @@ -917,7 +924,7 @@ EXPORT_SYMBOL_GPL(em28xx_set_mode); static void em28xx_irq_callback(struct urb *urb) { struct em28xx *dev = urb->context; - int rc, i; + int i; switch (urb->status) { case 0: /* success */ @@ -934,7 +941,7 @@ static void em28xx_irq_callback(struct urb *urb) /* Copy data from URB */ spin_lock(&dev->slock); - rc = dev->isoc_ctl.isoc_copy(dev, urb); + dev->isoc_ctl.isoc_copy(dev, urb); spin_unlock(&dev->slock); /* Reset urb buffers */ @@ -1106,17 +1113,19 @@ EXPORT_SYMBOL_GPL(em28xx_init_isoc); int em28xx_isoc_dvb_max_packetsize(struct em28xx *dev) { unsigned int chip_cfg2; - unsigned int packet_size = 564; - - if (dev->chip_id == CHIP_ID_EM2874) { - /* FIXME - for now assume 564 like it was before, but the - em2874 code should be added to return the proper value... */ - packet_size = 564; - } else if (dev->chip_id == CHIP_ID_EM28174) { - /* FIXME same as em2874. 564 was enough for 22 Mbit DVB-T - but too much for 44 Mbit DVB-C. */ - packet_size = 752; - } else { + unsigned int packet_size; + + switch (dev->chip_id) { + case CHIP_ID_EM2710: + case CHIP_ID_EM2750: + case CHIP_ID_EM2800: + case CHIP_ID_EM2820: + case CHIP_ID_EM2840: + case CHIP_ID_EM2860: + /* No DVB support */ + return -EINVAL; + case CHIP_ID_EM2870: + case CHIP_ID_EM2883: /* TS max packet size stored in bits 1-0 of R01 */ chip_cfg2 = em28xx_read_reg(dev, EM28XX_R01_CHIPCFG2); switch (chip_cfg2 & EM28XX_CHIPCFG2_TS_PACKETSIZE_MASK) { @@ -1133,9 +1142,24 @@ int em28xx_isoc_dvb_max_packetsize(struct em28xx *dev) packet_size = 752; break; } + break; + case CHIP_ID_EM2874: + /* + * FIXME: for now assumes 564 like it was before, but the + * em2874 code should be added to return the proper value + */ + packet_size = 564; + break; + case CHIP_ID_EM2884: + case CHIP_ID_EM28174: + default: + /* + * FIXME: same as em2874. 564 was enough for 22 Mbit DVB-T + * but not enough for 44 Mbit DVB-C. + */ + packet_size = 752; } - em28xx_coredbg("dvb max packet size=%d\n", packet_size); return packet_size; } EXPORT_SYMBOL_GPL(em28xx_isoc_dvb_max_packetsize); |