diff options
Diffstat (limited to 'sound')
-rw-r--r-- | sound/pci/asihpi/hpi6205.c | 22 | ||||
-rw-r--r-- | sound/pci/hda/hda_codec.c | 27 | ||||
-rw-r--r-- | sound/pci/hda/hda_codec.h | 5 | ||||
-rw-r--r-- | sound/pci/hda/patch_realtek.c | 42 | ||||
-rw-r--r-- | sound/soc/davinci/davinci-mcasp.c | 2 | ||||
-rw-r--r-- | sound/soc/fsl/mpc5200_dma.h | 2 | ||||
-rw-r--r-- | sound/usb/clock.c | 12 | ||||
-rw-r--r-- | sound/usb/endpoint.c | 1 | ||||
-rw-r--r-- | sound/usb/format.c | 104 | ||||
-rw-r--r-- | sound/usb/helper.h | 4 | ||||
-rw-r--r-- | sound/usb/mixer.c | 32 |
11 files changed, 190 insertions, 63 deletions
diff --git a/sound/pci/asihpi/hpi6205.c b/sound/pci/asihpi/hpi6205.c index e89991ea3543..3b4413448226 100644 --- a/sound/pci/asihpi/hpi6205.c +++ b/sound/pci/asihpi/hpi6205.c @@ -941,11 +941,11 @@ static void outstream_host_buffer_free(struct hpi_adapter_obj *pao, } -static long outstream_get_space_available(struct hpi_hostbuffer_status +static u32 outstream_get_space_available(struct hpi_hostbuffer_status *status) { - return status->size_in_bytes - ((long)(status->host_index) - - (long)(status->dSP_index)); + return status->size_in_bytes - (status->host_index - + status->dSP_index); } static void outstream_write(struct hpi_adapter_obj *pao, @@ -954,7 +954,7 @@ static void outstream_write(struct hpi_adapter_obj *pao, struct hpi_hw_obj *phw = pao->priv; struct bus_master_interface *interface = phw->p_interface_buffer; struct hpi_hostbuffer_status *status; - long space_available; + u32 space_available; if (!phw->outstream_host_buffer_size[phm->obj_index]) { /* there is no BBM buffer, write via message */ @@ -1007,7 +1007,7 @@ static void outstream_write(struct hpi_adapter_obj *pao, } space_available = outstream_get_space_available(status); - if (space_available < (long)phm->u.d.u.data.data_size) { + if (space_available < phm->u.d.u.data.data_size) { phr->error = HPI_ERROR_INVALID_DATASIZE; return; } @@ -1018,7 +1018,7 @@ static void outstream_write(struct hpi_adapter_obj *pao, && hpios_locked_mem_valid(&phw->outstream_host_buffers[phm-> obj_index])) { u8 *p_bbm_data; - long l_first_write; + u32 l_first_write; u8 *p_app_data = (u8 *)phm->u.d.u.data.pb_data; if (hpios_locked_mem_get_virt_addr(&phw-> @@ -1248,9 +1248,9 @@ static void instream_start(struct hpi_adapter_obj *pao, hw_message(pao, phm, phr); } -static long instream_get_bytes_available(struct hpi_hostbuffer_status *status) +static u32 instream_get_bytes_available(struct hpi_hostbuffer_status *status) { - return (long)(status->dSP_index) - (long)(status->host_index); + return status->dSP_index - status->host_index; } static void instream_read(struct hpi_adapter_obj *pao, @@ -1259,9 +1259,9 @@ static void instream_read(struct hpi_adapter_obj *pao, struct hpi_hw_obj *phw = pao->priv; struct bus_master_interface *interface = phw->p_interface_buffer; struct hpi_hostbuffer_status *status; - long data_available; + u32 data_available; u8 *p_bbm_data; - long l_first_read; + u32 l_first_read; u8 *p_app_data = (u8 *)phm->u.d.u.data.pb_data; if (!phw->instream_host_buffer_size[phm->obj_index]) { @@ -1272,7 +1272,7 @@ static void instream_read(struct hpi_adapter_obj *pao, status = &interface->instream_host_buffer_status[phm->obj_index]; data_available = instream_get_bytes_available(status); - if (data_available < (long)phm->u.d.u.data.data_size) { + if (data_available < phm->u.d.u.data.data_size) { phr->error = HPI_ERROR_INVALID_DATASIZE; return; } diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index a3d638c8c1fd..ba2098d20ccc 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -784,6 +784,9 @@ static int read_pin_defaults(struct hda_codec *codec) pin->nid = nid; pin->cfg = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0); + pin->ctrl = snd_hda_codec_read(codec, nid, 0, + AC_VERB_GET_PIN_WIDGET_CONTROL, + 0); } return 0; } @@ -912,15 +915,38 @@ static void restore_pincfgs(struct hda_codec *codec) void snd_hda_shutup_pins(struct hda_codec *codec) { int i; + /* don't shut up pins when unloading the driver; otherwise it breaks + * the default pin setup at the next load of the driver + */ + if (codec->bus->shutdown) + return; for (i = 0; i < codec->init_pins.used; i++) { struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i); /* use read here for syncing after issuing each verb */ snd_hda_codec_read(codec, pin->nid, 0, AC_VERB_SET_PIN_WIDGET_CONTROL, 0); } + codec->pins_shutup = 1; } EXPORT_SYMBOL_HDA(snd_hda_shutup_pins); +/* Restore the pin controls cleared previously via snd_hda_shutup_pins() */ +static void restore_shutup_pins(struct hda_codec *codec) +{ + int i; + if (!codec->pins_shutup) + return; + if (codec->bus->shutdown) + return; + for (i = 0; i < codec->init_pins.used; i++) { + struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i); + snd_hda_codec_write(codec, pin->nid, 0, + AC_VERB_SET_PIN_WIDGET_CONTROL, + pin->ctrl); + } + codec->pins_shutup = 0; +} + static void init_hda_cache(struct hda_cache_rec *cache, unsigned int record_size); static void free_hda_cache(struct hda_cache_rec *cache); @@ -2907,6 +2933,7 @@ static void hda_call_codec_resume(struct hda_codec *codec) codec->afg ? codec->afg : codec->mfg, AC_PWRST_D0); restore_pincfgs(codec); /* restore all current pin configs */ + restore_shutup_pins(codec); hda_exec_init_verbs(codec); if (codec->patch_ops.resume) codec->patch_ops.resume(codec); diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 49e939e7e5cd..5991d14e1ec0 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -821,6 +821,7 @@ struct hda_codec { unsigned int pin_amp_workaround:1; /* pin out-amp takes index * (e.g. Conexant codecs) */ + unsigned int pins_shutup:1; /* pins are shut up */ unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */ #ifdef CONFIG_SND_HDA_POWER_SAVE unsigned int power_on :1; /* current (global) power-state */ @@ -897,7 +898,9 @@ void snd_hda_codec_resume_cache(struct hda_codec *codec); /* the struct for codec->pin_configs */ struct hda_pincfg { hda_nid_t nid; - unsigned int cfg; + unsigned char ctrl; /* current pin control value */ + unsigned char pad; /* reserved */ + unsigned int cfg; /* default configuration */ }; unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid); diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index fc767b6b4785..ff614dd824c1 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -1268,8 +1268,10 @@ static int alc_auto_parse_customize_define(struct hda_codec *codec) struct alc_spec *spec = codec->spec; ass = codec->subsystem_id & 0xffff; - if (ass != codec->bus->pci->subsystem_device && (ass & 1)) + if (ass != codec->bus->pci->subsystem_device && (ass & 1)) { + spec->cdefine.enable_pcbeep = 1; /* assume always enabled */ goto do_sku; + } nid = 0x1d; if (codec->vendor_id == 0x10ec0260) @@ -2547,7 +2549,7 @@ static struct snd_kcontrol_new alc_beep_mixer[] = { static int alc_build_controls(struct hda_codec *codec) { struct alc_spec *spec = codec->spec; - struct snd_kcontrol *kctl; + struct snd_kcontrol *kctl = NULL; struct snd_kcontrol_new *knew; int i, j, err; unsigned int u; @@ -2619,16 +2621,18 @@ static int alc_build_controls(struct hda_codec *codec) } /* assign Capture Source enums to NID */ - kctl = snd_hda_find_mixer_ctl(codec, "Capture Source"); - if (!kctl) - kctl = snd_hda_find_mixer_ctl(codec, "Input Source"); - for (i = 0; kctl && i < kctl->count; i++) { - hda_nid_t *nids = spec->capsrc_nids; - if (!nids) - nids = spec->adc_nids; - err = snd_hda_add_nid(codec, kctl, i, nids[i]); - if (err < 0) - return err; + if (spec->capsrc_nids || spec->adc_nids) { + kctl = snd_hda_find_mixer_ctl(codec, "Capture Source"); + if (!kctl) + kctl = snd_hda_find_mixer_ctl(codec, "Input Source"); + for (i = 0; kctl && i < kctl->count; i++) { + hda_nid_t *nids = spec->capsrc_nids; + if (!nids) + nids = spec->adc_nids; + err = snd_hda_add_nid(codec, kctl, i, nids[i]); + if (err < 0) + return err; + } } if (spec->cap_mixer) { const char *kname = kctl ? kctl->id.name : NULL; @@ -6948,7 +6952,7 @@ static struct hda_input_mux mb5_capture_source = { .num_items = 3, .items = { { "Mic", 0x1 }, - { "Line", 0x2 }, + { "Line", 0x7 }, { "CD", 0x4 }, }, }; @@ -7469,8 +7473,8 @@ static struct snd_kcontrol_new alc885_mb5_mixer[] = { HDA_BIND_MUTE ("LFE Playback Switch", 0x0e, 0x02, HDA_INPUT), HDA_CODEC_VOLUME("Headphone Playback Volume", 0x0f, 0x00, HDA_OUTPUT), HDA_BIND_MUTE ("Headphone Playback Switch", 0x0f, 0x02, HDA_INPUT), - HDA_CODEC_VOLUME("Line Playback Volume", 0x0b, 0x02, HDA_INPUT), - HDA_CODEC_MUTE ("Line Playback Switch", 0x0b, 0x02, HDA_INPUT), + HDA_CODEC_VOLUME("Line Playback Volume", 0x0b, 0x07, HDA_INPUT), + HDA_CODEC_MUTE ("Line Playback Switch", 0x0b, 0x07, HDA_INPUT), HDA_CODEC_VOLUME("Mic Playback Volume", 0x0b, 0x01, HDA_INPUT), HDA_CODEC_MUTE ("Mic Playback Switch", 0x0b, 0x01, HDA_INPUT), HDA_CODEC_VOLUME("Line Boost", 0x15, 0x00, HDA_INPUT), @@ -7853,10 +7857,9 @@ static struct hda_verb alc885_mb5_init_verbs[] = { {0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN}, {0x15, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE}, - {0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)}, - {0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(3)}, - {0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(2)}, - {0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(4)}, + {0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0x1)}, + {0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0x7)}, + {0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0x4)}, { } }; @@ -9485,6 +9488,7 @@ static struct snd_pci_quirk alc882_ssid_cfg_tbl[] = { SND_PCI_QUIRK(0x106b, 0x3e00, "iMac 24 Aluminum", ALC885_IMAC24), SND_PCI_QUIRK(0x106b, 0x4900, "iMac 9,1 Aluminum", ALC885_IMAC91), SND_PCI_QUIRK(0x106b, 0x3f00, "Macbook 5,1", ALC885_MB5), + SND_PCI_QUIRK(0x106b, 0x4a00, "Macbook 5,2", ALC885_MB5), /* FIXME: HP jack sense seems not working for MBP 5,1 or 5,2, * so apparently no perfect solution yet */ diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c index 79f0f4ad242c..d3955096d872 100644 --- a/sound/soc/davinci/davinci-mcasp.c +++ b/sound/soc/davinci/davinci-mcasp.c @@ -612,7 +612,6 @@ static void davinci_hw_common_param(struct davinci_audio_dev *dev, int stream) NUMDMA_MASK); mcasp_mod_bits(dev->base + DAVINCI_MCASP_WFIFOCTL, ((dev->txnumevt * tx_ser) << 8), NUMEVT_MASK); - mcasp_set_bits(dev->base + DAVINCI_MCASP_WFIFOCTL, FIFO_ENABLE); } if (dev->rxnumevt && stream == SNDRV_PCM_STREAM_CAPTURE) { @@ -623,7 +622,6 @@ static void davinci_hw_common_param(struct davinci_audio_dev *dev, int stream) NUMDMA_MASK); mcasp_mod_bits(dev->base + DAVINCI_MCASP_RFIFOCTL, ((dev->rxnumevt * rx_ser) << 8), NUMEVT_MASK); - mcasp_set_bits(dev->base + DAVINCI_MCASP_RFIFOCTL, FIFO_ENABLE); } } diff --git a/sound/soc/fsl/mpc5200_dma.h b/sound/soc/fsl/mpc5200_dma.h index 22208b373fb9..e1ec6d91ea38 100644 --- a/sound/soc/fsl/mpc5200_dma.h +++ b/sound/soc/fsl/mpc5200_dma.h @@ -73,7 +73,7 @@ struct psc_dma { }; /* Utility for retrieving psc_dma_stream structure from a substream */ -inline struct psc_dma_stream * +static inline struct psc_dma_stream * to_psc_dma_stream(struct snd_pcm_substream *substream, struct psc_dma *psc_dma) { if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE) diff --git a/sound/usb/clock.c b/sound/usb/clock.c index b7aadd614c70..b5855114667e 100644 --- a/sound/usb/clock.c +++ b/sound/usb/clock.c @@ -103,7 +103,8 @@ static int uac_clock_selector_get_val(struct snd_usb_audio *chip, int selector_i ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - UAC2_CX_CLOCK_SELECTOR << 8, selector_id << 8, + UAC2_CX_CLOCK_SELECTOR << 8, + snd_usb_ctrl_intf(chip) | (selector_id << 8), &buf, sizeof(buf), 1000); if (ret < 0) @@ -120,7 +121,8 @@ static bool uac_clock_source_is_valid(struct snd_usb_audio *chip, int source_id) err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR, USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, - UAC2_CS_CONTROL_CLOCK_VALID << 8, source_id << 8, + UAC2_CS_CONTROL_CLOCK_VALID << 8, + snd_usb_ctrl_intf(chip) | (source_id << 8), &data, sizeof(data), 1000); if (err < 0) { @@ -269,7 +271,8 @@ static int set_sample_rate_v2(struct snd_usb_audio *chip, int iface, data[3] = rate >> 24; if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC2_CS_CUR, USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, - UAC2_CS_CONTROL_SAM_FREQ << 8, clock << 8, + UAC2_CS_CONTROL_SAM_FREQ << 8, + snd_usb_ctrl_intf(chip) | (clock << 8), data, sizeof(data), 1000)) < 0) { snd_printk(KERN_ERR "%d:%d:%d: cannot set freq %d (v2)\n", dev->devnum, iface, fmt->altsetting, rate); @@ -278,7 +281,8 @@ static int set_sample_rate_v2(struct snd_usb_audio *chip, int iface, if ((err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR, USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, - UAC2_CS_CONTROL_SAM_FREQ << 8, clock << 8, + UAC2_CS_CONTROL_SAM_FREQ << 8, + snd_usb_ctrl_intf(chip) | (clock << 8), data, sizeof(data), 1000)) < 0) { snd_printk(KERN_WARNING "%d:%d:%d: cannot get freq (v2)\n", dev->devnum, iface, fmt->altsetting); diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c index 9593b91452b9..6f6596cf2b19 100644 --- a/sound/usb/endpoint.c +++ b/sound/usb/endpoint.c @@ -427,6 +427,7 @@ int snd_usb_parse_audio_endpoints(struct snd_usb_audio *chip, int iface_no) if (snd_usb_parse_audio_format(chip, fp, format, fmt, stream, alts) < 0) { kfree(fp->rate_table); kfree(fp); + fp = NULL; continue; } diff --git a/sound/usb/format.c b/sound/usb/format.c index 5367cd1e52d9..30364aba79cc 100644 --- a/sound/usb/format.c +++ b/sound/usb/format.c @@ -206,6 +206,60 @@ static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audiof } /* + * Helper function to walk the array of sample rate triplets reported by + * the device. The problem is that we need to parse whole array first to + * get to know how many sample rates we have to expect. + * Then fp->rate_table can be allocated and filled. + */ +static int parse_uac2_sample_rate_range(struct audioformat *fp, int nr_triplets, + const unsigned char *data) +{ + int i, nr_rates = 0; + + fp->rates = fp->rate_min = fp->rate_max = 0; + + for (i = 0; i < nr_triplets; i++) { + int min = combine_quad(&data[2 + 12 * i]); + int max = combine_quad(&data[6 + 12 * i]); + int res = combine_quad(&data[10 + 12 * i]); + int rate; + + if ((max < 0) || (min < 0) || (res < 0) || (max < min)) + continue; + + /* + * for ranges with res == 1, we announce a continuous sample + * rate range, and this function should return 0 for no further + * parsing. + */ + if (res == 1) { + fp->rate_min = min; + fp->rate_max = max; + fp->rates = SNDRV_PCM_RATE_CONTINUOUS; + return 0; + } + + for (rate = min; rate <= max; rate += res) { + if (fp->rate_table) + fp->rate_table[nr_rates] = rate; + if (!fp->rate_min || rate < fp->rate_min) + fp->rate_min = rate; + if (!fp->rate_max || rate > fp->rate_max) + fp->rate_max = rate; + fp->rates |= snd_pcm_rate_to_rate_bit(rate); + + nr_rates++; + + /* avoid endless loop */ + if (res == 0) + break; + } + } + + return nr_rates; +} + +/* * parse the format descriptor and stores the possible sample rates * on the audioformat table (audio class v2). */ @@ -215,13 +269,20 @@ static int parse_audio_format_rates_v2(struct snd_usb_audio *chip, { struct usb_device *dev = chip->dev; unsigned char tmp[2], *data; - int i, nr_rates, data_size, ret = 0; + int nr_triplets, data_size, ret = 0; int clock = snd_usb_clock_find_source(chip, chip->ctrl_intf, fp->clock); + if (clock < 0) { + snd_printk(KERN_ERR "%s(): unable to find clock source (clock %d)\n", + __func__, clock); + goto err; + } + /* get the number of sample rates first by only fetching 2 bytes */ ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, - UAC2_CS_CONTROL_SAM_FREQ << 8, clock << 8, + UAC2_CS_CONTROL_SAM_FREQ << 8, + snd_usb_ctrl_intf(chip) | (clock << 8), tmp, sizeof(tmp), 1000); if (ret < 0) { @@ -230,8 +291,8 @@ static int parse_audio_format_rates_v2(struct snd_usb_audio *chip, goto err; } - nr_rates = (tmp[1] << 8) | tmp[0]; - data_size = 2 + 12 * nr_rates; + nr_triplets = (tmp[1] << 8) | tmp[0]; + data_size = 2 + 12 * nr_triplets; data = kzalloc(data_size, GFP_KERNEL); if (!data) { ret = -ENOMEM; @@ -241,7 +302,8 @@ static int parse_audio_format_rates_v2(struct snd_usb_audio *chip, /* now get the full information */ ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, - UAC2_CS_CONTROL_SAM_FREQ << 8, clock << 8, + UAC2_CS_CONTROL_SAM_FREQ << 8, + snd_usb_ctrl_intf(chip) | (clock << 8), data, data_size, 1000); if (ret < 0) { @@ -251,26 +313,28 @@ static int parse_audio_format_rates_v2(struct snd_usb_audio *chip, goto err_free; } - fp->rate_table = kmalloc(sizeof(int) * nr_rates, GFP_KERNEL); + /* Call the triplet parser, and make sure fp->rate_table is NULL. + * We just use the return value to know how many sample rates we + * will have to deal with. */ + kfree(fp->rate_table); + fp->rate_table = NULL; + fp->nr_rates = parse_uac2_sample_rate_range(fp, nr_triplets, data); + + if (fp->nr_rates == 0) { + /* SNDRV_PCM_RATE_CONTINUOUS */ + ret = 0; + goto err_free; + } + + fp->rate_table = kmalloc(sizeof(int) * fp->nr_rates, GFP_KERNEL); if (!fp->rate_table) { ret = -ENOMEM; goto err_free; } - fp->nr_rates = 0; - fp->rate_min = fp->rate_max = 0; - - for (i = 0; i < nr_rates; i++) { - int rate = combine_quad(&data[2 + 12 * i]); - - fp->rate_table[fp->nr_rates] = rate; - if (!fp->rate_min || rate < fp->rate_min) - fp->rate_min = rate; - if (!fp->rate_max || rate > fp->rate_max) - fp->rate_max = rate; - fp->rates |= snd_pcm_rate_to_rate_bit(rate); - fp->nr_rates++; - } + /* Call the triplet parser again, but this time, fp->rate_table is + * allocated, so the rates will be stored */ + parse_uac2_sample_rate_range(fp, nr_triplets, data); err_free: kfree(data); diff --git a/sound/usb/helper.h b/sound/usb/helper.h index a6b0e51b3a9a..09bd943c43bf 100644 --- a/sound/usb/helper.h +++ b/sound/usb/helper.h @@ -28,5 +28,9 @@ unsigned char snd_usb_parse_datainterval(struct snd_usb_audio *chip, #define snd_usb_get_speed(dev) ((dev)->speed) #endif +static inline int snd_usb_ctrl_intf(struct snd_usb_audio *chip) +{ + return get_iface_desc(chip->ctrl_intf)->bInterfaceNumber; +} #endif /* __USBAUDIO_HELPER_H */ diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index a060d005e209..736d134cc03c 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -297,20 +297,27 @@ static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int v static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) { - unsigned char buf[14]; /* enough space for one range of 4 bytes */ + unsigned char buf[2 + 3*sizeof(__u16)]; /* enough space for one range */ unsigned char *val; - int ret; + int ret, size; __u8 bRequest; - bRequest = (request == UAC_GET_CUR) ? - UAC2_CS_CUR : UAC2_CS_RANGE; + if (request == UAC_GET_CUR) { + bRequest = UAC2_CS_CUR; + size = sizeof(__u16); + } else { + bRequest = UAC2_CS_RANGE; + size = sizeof(buf); + } + + memset(buf, 0, sizeof(buf)); ret = snd_usb_ctl_msg(cval->mixer->chip->dev, usb_rcvctrlpipe(cval->mixer->chip->dev, 0), bRequest, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, validx, cval->mixer->ctrlif | (cval->id << 8), - buf, sizeof(buf), 1000); + buf, size, 1000); if (ret < 0) { snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", @@ -318,6 +325,8 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int v return ret; } + /* FIXME: how should we handle multiple triplets here? */ + switch (request) { case UAC_GET_CUR: val = buf; @@ -1098,6 +1107,19 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc, } break; + case USB_ID(0x046d, 0x0809): + case USB_ID(0x046d, 0x0991): + /* Most audio usb devices lie about volume resolution. + * Most Logitech webcams have res = 384. + * Proboly there is some logitech magic behind this number --fishor + */ + if (!strcmp(kctl->id.name, "Mic Capture Volume")) { + snd_printk(KERN_INFO + "set resolution quirk: cval->res = 384\n"); + cval->res = 384; + } + break; + } snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", |