X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=sound%2Fi2c%2Fcs8427.c;h=020a5d5124721a54ef81b2c5b97943580699a19c;hb=3227fa41abc191384fa81b3bcf52aa7fccb31536;hp=cb89f7eb9236dfee53a2870f8f0622a8d4f9f98a;hpb=e957ebf164e880ddb0c057418195db47d013c4ac;p=safe%2Fjmp%2Flinux-2.6 diff --git a/sound/i2c/cs8427.c b/sound/i2c/cs8427.c index cb89f7e..020a5d5 100644 --- a/sound/i2c/cs8427.c +++ b/sound/i2c/cs8427.c @@ -1,7 +1,7 @@ /* * Routines for control of the CS8427 via i2c bus * IEC958 (S/PDIF) receiver & transmitter by Cirrus Logic - * Copyright (c) by Jaroslav Kysela + * Copyright (c) by Jaroslav Kysela * * * This program is free software; you can redistribute it and/or modify @@ -20,10 +20,10 @@ * */ -#include #include #include #include +#include #include #include #include @@ -32,7 +32,7 @@ static void snd_cs8427_reset(struct snd_i2c_device *cs8427); -MODULE_AUTHOR("Jaroslav Kysela "); +MODULE_AUTHOR("Jaroslav Kysela "); MODULE_DESCRIPTION("IEC958 (S/PDIF) receiver & transmitter by Cirrus Logic"); MODULE_LICENSE("GPL"); @@ -76,23 +76,28 @@ int snd_cs8427_reg_write(struct snd_i2c_device *device, unsigned char reg, buf[0] = reg & 0x7f; buf[1] = val; if ((err = snd_i2c_sendbytes(device, buf, 2)) != 2) { - snd_printk(KERN_ERR "unable to send bytes 0x%02x:0x%02x to CS8427 (%i)\n", buf[0], buf[1], err); + snd_printk(KERN_ERR "unable to send bytes 0x%02x:0x%02x " + "to CS8427 (%i)\n", buf[0], buf[1], err); return err < 0 ? err : -EIO; } return 0; } +EXPORT_SYMBOL(snd_cs8427_reg_write); + static int snd_cs8427_reg_read(struct snd_i2c_device *device, unsigned char reg) { int err; unsigned char buf; if ((err = snd_i2c_sendbytes(device, ®, 1)) != 1) { - snd_printk(KERN_ERR "unable to send register 0x%x byte to CS8427\n", reg); + snd_printk(KERN_ERR "unable to send register 0x%x byte " + "to CS8427\n", reg); return err < 0 ? err : -EIO; } if ((err = snd_i2c_readbytes(device, &buf, 1)) != 1) { - snd_printk(KERN_ERR "unable to read register 0x%x byte from CS8427\n", reg); + snd_printk(KERN_ERR "unable to read register 0x%x byte " + "from CS8427\n", reg); return err < 0 ? err : -EIO; } return buf; @@ -121,7 +126,8 @@ static int snd_cs8427_send_corudata(struct snd_i2c_device *device, int count) { struct cs8427 *chip = device->private_data; - char *hw_data = udata ? chip->playback.hw_udata : chip->playback.hw_status; + char *hw_data = udata ? + chip->playback.hw_udata : chip->playback.hw_status; char data[32]; int err, idx; @@ -134,11 +140,11 @@ static int snd_cs8427_send_corudata(struct snd_i2c_device *device, memset(data, 0, sizeof(data)); if (memcmp(hw_data, data, count) == 0) { chip->regmap[CS8427_REG_UDATABUF] &= ~CS8427_UBMMASK; - chip->regmap[CS8427_REG_UDATABUF] |= CS8427_UBMZEROS | CS8427_EFTUI; - if ((err = snd_cs8427_reg_write(device, CS8427_REG_UDATABUF, - chip->regmap[CS8427_REG_UDATABUF])) < 0) - return err; - return 0; + chip->regmap[CS8427_REG_UDATABUF] |= CS8427_UBMZEROS | + CS8427_EFTUI; + err = snd_cs8427_reg_write(device, CS8427_REG_UDATABUF, + chip->regmap[CS8427_REG_UDATABUF]); + return err < 0 ? err : 0; } } data[0] = CS8427_REG_AUTOINC | CS8427_REG_CORU_DATABUF; @@ -161,24 +167,32 @@ int snd_cs8427_create(struct snd_i2c_bus *bus, { static unsigned char initvals1[] = { CS8427_REG_CONTROL1 | CS8427_REG_AUTOINC, - /* CS8427_REG_CONTROL1: RMCK to OMCK, valid PCM audio, disable mutes, TCBL=output */ + /* CS8427_REG_CONTROL1: RMCK to OMCK, valid PCM audio, disable mutes, + TCBL=output */ CS8427_SWCLK | CS8427_TCBLDIR, - /* CS8427_REG_CONTROL2: hold last valid audio sample, RMCK=256*Fs, normal stereo operation */ + /* CS8427_REG_CONTROL2: hold last valid audio sample, RMCK=256*Fs, + normal stereo operation */ 0x00, - /* CS8427_REG_DATAFLOW: output drivers normal operation, Tx<=serial, Rx=>serial */ + /* CS8427_REG_DATAFLOW: output drivers normal operation, Tx<=serial, + Rx=>serial */ CS8427_TXDSERIAL | CS8427_SPDAES3RECEIVER, - /* CS8427_REG_CLOCKSOURCE: Run off, CMCK=256*Fs, output time base = OMCK, input time base = - recovered input clock, recovered input clock source is ILRCK changed to AES3INPUT (workaround, see snd_cs8427_reset) */ + /* CS8427_REG_CLOCKSOURCE: Run off, CMCK=256*Fs, + output time base = OMCK, input time base = recovered input clock, + recovered input clock source is ILRCK changed to AES3INPUT + (workaround, see snd_cs8427_reset) */ CS8427_RXDILRCK, - /* CS8427_REG_SERIALINPUT: Serial audio input port data format = I2S, 24-bit, 64*Fsi */ + /* CS8427_REG_SERIALINPUT: Serial audio input port data format = I2S, + 24-bit, 64*Fsi */ CS8427_SIDEL | CS8427_SILRPOL, - /* CS8427_REG_SERIALOUTPUT: Serial audio output port data format = I2S, 24-bit, 64*Fsi */ + /* CS8427_REG_SERIALOUTPUT: Serial audio output port data format + = I2S, 24-bit, 64*Fsi */ CS8427_SODEL | CS8427_SOLRPOL, }; static unsigned char initvals2[] = { CS8427_REG_RECVERRMASK | CS8427_REG_AUTOINC, - /* CS8427_REG_RECVERRMASK: unmask the input PLL clock, V, confidence, biphase, parity status bits */ - /* CS8427_UNLOCK | CS8427_V | CS8427_CONF | CS8427_BIP | CS8427_PAR, */ + /* CS8427_REG_RECVERRMASK: unmask the input PLL clock, V, confidence, + biphase, parity status bits */ + /* CS8427_UNLOCK | CS8427_V | CS8427_CONF | CS8427_BIP | CS8427_PAR,*/ 0xff, /* set everything */ /* CS8427_REG_CSDATABUF: Registers 32-55 window to CS buffer @@ -201,7 +215,8 @@ int snd_cs8427_create(struct snd_i2c_bus *bus, struct snd_i2c_device *device; unsigned char buf[24]; - if ((err = snd_i2c_device_create(bus, "CS8427", CS8427_ADDR | (addr & 7), + if ((err = snd_i2c_device_create(bus, "CS8427", + CS8427_ADDR | (addr & 7), &device)) < 0) return err; chip = device->private_data = kzalloc(sizeof(*chip), GFP_KERNEL); @@ -212,8 +227,14 @@ int snd_cs8427_create(struct snd_i2c_bus *bus, device->private_free = snd_cs8427_free; snd_i2c_lock(bus); - if ((err = snd_cs8427_reg_read(device, CS8427_REG_ID_AND_VER)) != - CS8427_VER8427A) { + err = snd_cs8427_reg_read(device, CS8427_REG_ID_AND_VER); + if (err != CS8427_VER8427A) { + /* give second chance */ + snd_printk(KERN_WARNING "invalid CS8427 signature 0x%x: " + "let me try again...\n", err); + err = snd_cs8427_reg_read(device, CS8427_REG_ID_AND_VER); + } + if (err != CS8427_VER8427A) { snd_i2c_unlock(bus); snd_printk(KERN_ERR "unable to find CS8427 signature " "(expected 0x%x, read 0x%x),\n", @@ -222,7 +243,8 @@ int snd_cs8427_create(struct snd_i2c_bus *bus, return -EFAULT; } /* turn off run bit while making changes to configuration */ - if ((err = snd_cs8427_reg_write(device, CS8427_REG_CLOCKSOURCE, 0x00)) < 0) + err = snd_cs8427_reg_write(device, CS8427_REG_CLOCKSOURCE, 0x00); + if (err < 0) goto __fail; /* send initial values */ memcpy(chip->regmap + (initvals1[0] & 0x7f), initvals1 + 1, 6); @@ -243,10 +265,7 @@ int snd_cs8427_create(struct snd_i2c_bus *bus, goto __fail; } /* write default channel status bytes */ - buf[0] = ((unsigned char)(SNDRV_PCM_DEFAULT_CON_SPDIF >> 0)); - buf[1] = ((unsigned char)(SNDRV_PCM_DEFAULT_CON_SPDIF >> 8)); - buf[2] = ((unsigned char)(SNDRV_PCM_DEFAULT_CON_SPDIF >> 16)); - buf[3] = ((unsigned char)(SNDRV_PCM_DEFAULT_CON_SPDIF >> 24)); + put_unaligned_le32(SNDRV_PCM_DEFAULT_CON_SPDIF, buf); memset(buf + 4, 0, 24 - 4); if (snd_cs8427_send_corudata(device, 0, buf, 24) < 0) goto __fail; @@ -282,6 +301,8 @@ int snd_cs8427_create(struct snd_i2c_bus *bus, return err < 0 ? err : -EIO; } +EXPORT_SYMBOL(snd_cs8427_create); + /* * Reset the chip using run bit, also lock PLL using ILRCK and * put back AES3INPUT. This workaround is described in latest @@ -293,10 +314,12 @@ static void snd_cs8427_reset(struct snd_i2c_device *cs8427) unsigned long end_time; int data, aes3input = 0; - snd_assert(cs8427, return); + if (snd_BUG_ON(!cs8427)) + return; chip = cs8427->private_data; snd_i2c_lock(cs8427->bus); - if ((chip->regmap[CS8427_REG_CLOCKSOURCE] & CS8427_RXDAES3INPUT) == CS8427_RXDAES3INPUT) /* AES3 bit is set */ + if ((chip->regmap[CS8427_REG_CLOCKSOURCE] & CS8427_RXDAES3INPUT) == + CS8427_RXDAES3INPUT) /* AES3 bit is set */ aes3input = 1; chip->regmap[CS8427_REG_CLOCKSOURCE] &= ~(CS8427_RUN | CS8427_RXDMASK); snd_cs8427_reg_write(cs8427, CS8427_REG_CLOCKSOURCE, @@ -367,12 +390,15 @@ static int snd_cs8427_qsubcode_get(struct snd_kcontrol *kcontrol, snd_i2c_lock(device->bus); if ((err = snd_i2c_sendbytes(device, ®, 1)) != 1) { - snd_printk(KERN_ERR "unable to send register 0x%x byte to CS8427\n", reg); + snd_printk(KERN_ERR "unable to send register 0x%x byte " + "to CS8427\n", reg); snd_i2c_unlock(device->bus); return err < 0 ? err : -EIO; } - if ((err = snd_i2c_readbytes(device, ucontrol->value.bytes.data, 10)) != 10) { - snd_printk(KERN_ERR "unable to read Q-subcode bytes from CS8427\n"); + err = snd_i2c_readbytes(device, ucontrol->value.bytes.data, 10); + if (err != 10) { + snd_printk(KERN_ERR "unable to read Q-subcode bytes " + "from CS8427\n"); snd_i2c_unlock(device->bus); return err < 0 ? err : -EIO; } @@ -380,7 +406,8 @@ static int snd_cs8427_qsubcode_get(struct snd_kcontrol *kcontrol, return 0; } -static int snd_cs8427_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +static int snd_cs8427_spdif_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) { uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; uinfo->count = 1; @@ -413,7 +440,8 @@ static int snd_cs8427_spdif_put(struct snd_kcontrol *kcontrol, snd_i2c_lock(device->bus); change = memcmp(ucontrol->value.iec958.status, status, 24) != 0; memcpy(status, ucontrol->value.iec958.status, 24); - if (change && (kcontrol->private_value ? runtime != NULL : runtime == NULL)) { + if (change && (kcontrol->private_value ? + runtime != NULL : runtime == NULL)) { err = snd_cs8427_send_corudata(device, 0, status, 24); if (err < 0) change = err; @@ -442,7 +470,8 @@ static struct snd_kcontrol_new snd_cs8427_iec958_controls[] = { .iface = SNDRV_CTL_ELEM_IFACE_PCM, .info = snd_cs8427_in_status_info, .name = "IEC958 CS8427 Input Status", - .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .access = (SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_VOLATILE), .get = snd_cs8427_in_status_get, .private_value = 15, }, @@ -450,7 +479,8 @@ static struct snd_kcontrol_new snd_cs8427_iec958_controls[] = { .iface = SNDRV_CTL_ELEM_IFACE_PCM, .info = snd_cs8427_in_status_info, .name = "IEC958 CS8427 Error Status", - .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .access = (SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_VOLATILE), .get = snd_cs8427_in_status_get, .private_value = 16, }, @@ -470,7 +500,8 @@ static struct snd_kcontrol_new snd_cs8427_iec958_controls[] = { .private_value = 0 }, { - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE, + .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_INACTIVE), .iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM), .info = snd_cs8427_spdif_info, @@ -482,7 +513,8 @@ static struct snd_kcontrol_new snd_cs8427_iec958_controls[] = { .iface = SNDRV_CTL_ELEM_IFACE_PCM, .info = snd_cs8427_qsubcode_info, .name = "IEC958 Q-subcode Capture Default", - .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .access = (SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_VOLATILE), .get = snd_cs8427_qsubcode_get }}; @@ -495,7 +527,8 @@ int snd_cs8427_iec958_build(struct snd_i2c_device *cs8427, unsigned int idx; int err; - snd_assert(play_substream && cap_substream, return -EINVAL); + if (snd_BUG_ON(!play_substream || !cap_substream)) + return -EINVAL; for (idx = 0; idx < ARRAY_SIZE(snd_cs8427_iec958_controls); idx++) { kctl = snd_ctl_new1(&snd_cs8427_iec958_controls[idx], cs8427); if (kctl == NULL) @@ -505,37 +538,47 @@ int snd_cs8427_iec958_build(struct snd_i2c_device *cs8427, err = snd_ctl_add(cs8427->bus->card, kctl); if (err < 0) return err; - if (!strcmp(kctl->id.name, SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM))) + if (! strcmp(kctl->id.name, + SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM))) chip->playback.pcm_ctl = kctl; } chip->playback.substream = play_substream; chip->capture.substream = cap_substream; - snd_assert(chip->playback.pcm_ctl, return -EIO); + if (snd_BUG_ON(!chip->playback.pcm_ctl)) + return -EIO; return 0; } +EXPORT_SYMBOL(snd_cs8427_iec958_build); + int snd_cs8427_iec958_active(struct snd_i2c_device *cs8427, int active) { struct cs8427 *chip; - snd_assert(cs8427, return -ENXIO); + if (snd_BUG_ON(!cs8427)) + return -ENXIO; chip = cs8427->private_data; if (active) - memcpy(chip->playback.pcm_status, chip->playback.def_status, 24); + memcpy(chip->playback.pcm_status, + chip->playback.def_status, 24); chip->playback.pcm_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; - snd_ctl_notify(cs8427->bus->card, SNDRV_CTL_EVENT_MASK_VALUE | - SNDRV_CTL_EVENT_MASK_INFO, &chip->playback.pcm_ctl->id); + snd_ctl_notify(cs8427->bus->card, + SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO, + &chip->playback.pcm_ctl->id); return 0; } +EXPORT_SYMBOL(snd_cs8427_iec958_active); + int snd_cs8427_iec958_pcm(struct snd_i2c_device *cs8427, unsigned int rate) { struct cs8427 *chip; char *status; int err, reset; - snd_assert(cs8427, return -ENXIO); + if (snd_BUG_ON(!cs8427)) + return -ENXIO; chip = cs8427->private_data; status = chip->playback.pcm_status; snd_i2c_lock(cs8427->bus); @@ -568,6 +611,8 @@ int snd_cs8427_iec958_pcm(struct snd_i2c_device *cs8427, unsigned int rate) return err < 0 ? err : 0; } +EXPORT_SYMBOL(snd_cs8427_iec958_pcm); + static int __init alsa_cs8427_module_init(void) { return 0; @@ -579,10 +624,3 @@ static void __exit alsa_cs8427_module_exit(void) module_init(alsa_cs8427_module_init) module_exit(alsa_cs8427_module_exit) - -EXPORT_SYMBOL(snd_cs8427_create); -EXPORT_SYMBOL(snd_cs8427_reset); -EXPORT_SYMBOL(snd_cs8427_reg_write); -EXPORT_SYMBOL(snd_cs8427_iec958_build); -EXPORT_SYMBOL(snd_cs8427_iec958_active); -EXPORT_SYMBOL(snd_cs8427_iec958_pcm);