static int pt2258_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_pt2258 *pt = kcontrol->private_data; unsigned char bytes[2]; int val; val = !ucontrol->value.integer.value[0]; if (pt->mute == val) return 0; pt->mute = val; bytes[0] = val ? PT2258_CMD_MUTE : PT2258_CMD_UNMUTE; snd_i2c_lock(pt->i2c_bus); if (snd_i2c_sendbytes(pt->i2c_dev, bytes, 1) != 1) goto __error; snd_i2c_unlock(pt->i2c_bus); return 1; __error: snd_i2c_unlock(pt->i2c_bus); snd_printk(KERN_ERR "PT2258 access failed 2\n"); return -EIO; }
/* * change the input clock selection * spdif_clock = 1 - IEC958 input, 0 - Envy24 */ static int snd_ice1712_cs8427_set_input_clock(struct snd_ice1712 *ice, int spdif_clock) { unsigned char reg[2] = { 0x80 | 4, 0 }; /* CS8427 auto increment | register number 4 + data */ unsigned char val, nval; int res = 0; snd_i2c_lock(ice->i2c); if (snd_i2c_sendbytes(ice->cs8427, reg, 1) != 1) { snd_i2c_unlock(ice->i2c); return -EIO; } if (snd_i2c_readbytes(ice->cs8427, &val, 1) != 1) { snd_i2c_unlock(ice->i2c); return -EIO; } nval = val & 0xf0; if (spdif_clock) nval |= 0x01; else nval |= 0x04; if (val != nval) { reg[1] = nval; if (snd_i2c_sendbytes(ice->cs8427, reg, 2) != 2) { res = -EIO; } else { res++; } } snd_i2c_unlock(ice->i2c); return res; }
static int snd_tea6330t_put_master_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct tea6330t *tea = snd_kcontrol_chip(kcontrol); int change, count, err; unsigned char bytes[3]; unsigned char val1, val2; val1 = (ucontrol->value.integer.value[0] % 44) + 0x14; val2 = (ucontrol->value.integer.value[1] % 44) + 0x14; snd_i2c_lock(tea->bus); change = val1 != tea->mleft || val2 != tea->mright; tea->mleft = val1; tea->mright = val2; count = 0; if (tea->regs[TEA6330T_SADDR_VOLUME_LEFT] != 0) { bytes[count++] = TEA6330T_SADDR_VOLUME_LEFT; bytes[count++] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] = tea->mleft; } if (tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] != 0) { if (count == 0) bytes[count++] = TEA6330T_SADDR_VOLUME_RIGHT; bytes[count++] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] = tea->mright; } if (count > 0) { if ((err = snd_i2c_sendbytes(tea->device, bytes, count)) < 0) change = err; } snd_i2c_unlock(tea->bus); return change; }
int snd_tea6330t_detect(struct snd_i2c_bus *bus, int equalizer) { int res; snd_i2c_lock(bus); res = snd_i2c_probeaddr(bus, TEA6330T_ADDR); snd_i2c_unlock(bus); return res; }
int snd_cs8427_detect(snd_i2c_bus_t *bus, unsigned char addr) { int res; snd_i2c_lock(bus); res = snd_i2c_probeaddr(bus, CS8427_ADDR | (addr & 7)); snd_i2c_unlock(bus); return res; }
static int snd_tea6330t_get_master_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { tea6330t_t *tea = snd_kcontrol_chip(kcontrol); snd_i2c_lock(tea->bus); ucontrol->value.integer.value[0] = tea->mleft - 0x14; ucontrol->value.integer.value[1] = tea->mright - 0x14; snd_i2c_unlock(tea->bus); return 0; }
static int snd_tea6330t_get_master_switch(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { tea6330t_t *tea = snd_kcontrol_chip(kcontrol); snd_i2c_lock(tea->bus); ucontrol->value.integer.value[0] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] == 0 ? 0 : 1; ucontrol->value.integer.value[1] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] == 0 ? 0 : 1; snd_i2c_unlock(tea->bus); return 0; }
static int snd_cs8427_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_i2c_device *device = snd_kcontrol_chip(kcontrol); struct cs8427 *chip = device->private_data; snd_i2c_lock(device->bus); memcpy(ucontrol->value.iec958.status, chip->playback.def_status, 24); snd_i2c_unlock(device->bus); return 0; }
/* * Reset the chip using run bit, also lock PLL using ILRCK and * put back AES3INPUT. This workaround is described in latest * CS8427 datasheet, otherwise TXDSERIAL will not work. */ static void snd_cs8427_reset(struct snd_i2c_device *cs8427) { struct cs8427 *chip; unsigned long end_time; int data, aes3input = 0; 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 */ aes3input = 1; chip->regmap[CS8427_REG_CLOCKSOURCE] &= ~(CS8427_RUN | CS8427_RXDMASK); snd_cs8427_reg_write(cs8427, CS8427_REG_CLOCKSOURCE, chip->regmap[CS8427_REG_CLOCKSOURCE]); udelay(200); chip->regmap[CS8427_REG_CLOCKSOURCE] |= CS8427_RUN | CS8427_RXDILRCK; snd_cs8427_reg_write(cs8427, CS8427_REG_CLOCKSOURCE, chip->regmap[CS8427_REG_CLOCKSOURCE]); udelay(200); snd_i2c_unlock(cs8427->bus); end_time = jiffies + chip->reset_timeout; while (time_after_eq(end_time, jiffies)) { snd_i2c_lock(cs8427->bus); data = snd_cs8427_reg_read(cs8427, CS8427_REG_RECVERRORS); snd_i2c_unlock(cs8427->bus); if (!(data & CS8427_UNLOCK)) break; schedule_timeout_uninterruptible(1); } snd_i2c_lock(cs8427->bus); chip->regmap[CS8427_REG_CLOCKSOURCE] &= ~CS8427_RXDMASK; if (aes3input) chip->regmap[CS8427_REG_CLOCKSOURCE] |= CS8427_RXDAES3INPUT; snd_cs8427_reg_write(cs8427, CS8427_REG_CLOCKSOURCE, chip->regmap[CS8427_REG_CLOCKSOURCE]); snd_i2c_unlock(cs8427->bus); }
static int pt2258_stereo_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_pt2258 *pt = kcontrol->private_data; int base = kcontrol->private_value; unsigned char bytes[2]; int val0, val1; val0 = 79 - ucontrol->value.integer.value[0]; val1 = 79 - ucontrol->value.integer.value[1]; if (val0 < 0 || val0 > 79 || val1 < 0 || val1 > 79) return -EINVAL; if (val0 == pt->volume[base] && val1 == pt->volume[base + 1]) return 0; pt->volume[base] = val0; bytes[0] = pt2258_channel_code[2 * base] | (val0 / 10); bytes[1] = pt2258_channel_code[2 * base + 1] | (val0 % 10); snd_i2c_lock(pt->i2c_bus); if (snd_i2c_sendbytes(pt->i2c_dev, bytes, 2) != 2) goto __error; snd_i2c_unlock(pt->i2c_bus); pt->volume[base + 1] = val1; bytes[0] = pt2258_channel_code[2 * base + 2] | (val1 / 10); bytes[1] = pt2258_channel_code[2 * base + 3] | (val1 % 10); snd_i2c_lock(pt->i2c_bus); if (snd_i2c_sendbytes(pt->i2c_dev, bytes, 2) != 2) goto __error; snd_i2c_unlock(pt->i2c_bus); return 1; __error: snd_i2c_unlock(pt->i2c_bus); snd_printk(KERN_ERR "PT2258 access failed\n"); return -EIO; }
static int snd_cs8427_in_status_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_i2c_device *device = snd_kcontrol_chip(kcontrol); int data; snd_i2c_lock(device->bus); data = snd_cs8427_reg_read(device, kcontrol->private_value); snd_i2c_unlock(device->bus); if (data < 0) return data; ucontrol->value.integer.value[0] = data; return 0; }
int snd_pt2258_reset(struct snd_pt2258 *pt) { unsigned char bytes[2]; int i; /* */ bytes[0] = PT2258_CMD_RESET; snd_i2c_lock(pt->i2c_bus); if (snd_i2c_sendbytes(pt->i2c_dev, bytes, 1) != 1) goto __error; snd_i2c_unlock(pt->i2c_bus); /* */ pt->mute = 1; bytes[0] = PT2258_CMD_MUTE; snd_i2c_lock(pt->i2c_bus); if (snd_i2c_sendbytes(pt->i2c_dev, bytes, 1) != 1) goto __error; snd_i2c_unlock(pt->i2c_bus); /* */ for (i = 0; i < 6; ++i) pt->volume[i] = 0; bytes[0] = 0xd0; bytes[1] = 0xe0; snd_i2c_lock(pt->i2c_bus); if (snd_i2c_sendbytes(pt->i2c_dev, bytes, 2) != 2) goto __error; snd_i2c_unlock(pt->i2c_bus); return 0; __error: snd_i2c_unlock(pt->i2c_bus); snd_printk(KERN_ERR "PT2258 reset failed\n"); return -EIO; }
static int snd_cs8427_qsubcode_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_i2c_device *device = snd_kcontrol_chip(kcontrol); unsigned char reg = CS8427_REG_QSUBCODE; int err; 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_i2c_unlock(device->bus); return err < 0 ? err : -EIO; } 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; } snd_i2c_unlock(device->bus); return 0; }
static int snd_tea6330t_put_treble(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { tea6330t_t *tea = snd_kcontrol_chip(kcontrol); int change, err; unsigned char bytes[2]; unsigned char val1; val1 = ucontrol->value.integer.value[0] % (tea->max_treble + 1); snd_i2c_lock(tea->bus); tea->treble = val1; val1 += 3; change = tea->regs[TEA6330T_SADDR_TREBLE] != val1; bytes[0] = TEA6330T_SADDR_TREBLE; bytes[1] = tea->regs[TEA6330T_SADDR_TREBLE] = val1; if ((err = snd_i2c_sendbytes(tea->device, bytes, 2)) < 0) change = err; snd_i2c_unlock(tea->bus); return change; }
static int snd_tea6330t_put_bass(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct tea6330t *tea = snd_kcontrol_chip(kcontrol); int change, err; unsigned char bytes[2]; unsigned char val1; val1 = ucontrol->value.integer.value[0] % (tea->max_bass + 1); snd_i2c_lock(tea->bus); tea->bass = val1; val1 += tea->equalizer ? 7 : 3; change = tea->regs[TEA6330T_SADDR_BASS] != val1; bytes[0] = TEA6330T_SADDR_BASS; bytes[1] = tea->regs[TEA6330T_SADDR_BASS] = val1; if ((err = snd_i2c_sendbytes(tea->device, bytes, 2)) < 0) change = err; snd_i2c_unlock(tea->bus); return change; }
int snd_cs8427_iec958_pcm(struct snd_i2c_device *cs8427, unsigned int rate) { struct cs8427 *chip; char *status; int err, reset; if (snd_BUG_ON(!cs8427)) return -ENXIO; chip = cs8427->private_data; status = chip->playback.pcm_status; snd_i2c_lock(cs8427->bus); if (status[0] & IEC958_AES0_PROFESSIONAL) { status[0] &= ~IEC958_AES0_PRO_FS; switch (rate) { case 32000: status[0] |= IEC958_AES0_PRO_FS_32000; break; case 44100: status[0] |= IEC958_AES0_PRO_FS_44100; break; case 48000: status[0] |= IEC958_AES0_PRO_FS_48000; break; default: status[0] |= IEC958_AES0_PRO_FS_NOTID; break; } } else { status[3] &= ~IEC958_AES3_CON_FS; switch (rate) { case 32000: status[3] |= IEC958_AES3_CON_FS_32000; break; case 44100: status[3] |= IEC958_AES3_CON_FS_44100; break; case 48000: status[3] |= IEC958_AES3_CON_FS_48000; break; } } err = snd_cs8427_send_corudata(cs8427, 0, status, 24); if (err > 0) snd_ctl_notify(cs8427->bus->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->playback.pcm_ctl->id); reset = chip->rate != rate; chip->rate = rate; snd_i2c_unlock(cs8427->bus); if (reset) snd_cs8427_reset(cs8427); return err < 0 ? err : 0; }
static int snd_cs8427_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_i2c_device *device = snd_kcontrol_chip(kcontrol); struct cs8427 *chip = device->private_data; unsigned char *status = kcontrol->private_value ? chip->playback.pcm_status : chip->playback.def_status; struct snd_pcm_runtime *runtime = chip->playback.substream ? chip->playback.substream->runtime : NULL; int err, change; 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)) { err = snd_cs8427_send_corudata(device, 0, status, 24); if (err < 0) change = err; } snd_i2c_unlock(device->bus); return change; }
static int snd_tea6330t_put_master_switch(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { tea6330t_t *tea = snd_kcontrol_chip(kcontrol); int change, err; unsigned char bytes[3]; unsigned char oval1, oval2, val1, val2; val1 = ucontrol->value.integer.value[0] & 1; val2 = ucontrol->value.integer.value[1] & 1; snd_i2c_lock(tea->bus); oval1 = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] == 0 ? 0 : 1; oval2 = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] == 0 ? 0 : 1; change = val1 != oval1 || val2 != oval2; tea->regs[TEA6330T_SADDR_VOLUME_LEFT] = val1 ? tea->mleft : 0; tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] = val2 ? tea->mright : 0; bytes[0] = TEA6330T_SADDR_VOLUME_LEFT; bytes[1] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT]; bytes[2] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT]; if ((err = snd_i2c_sendbytes(tea->device, bytes, 3)) < 0) change = err; snd_i2c_unlock(tea->bus); return change; }
int snd_tea6330t_update_mixer(struct snd_card *card, struct snd_i2c_bus *bus, int equalizer, int fader) { struct snd_i2c_device *device; struct tea6330t *tea; struct snd_kcontrol_new *knew; unsigned int idx; int err = -ENOMEM; u8 default_treble, default_bass; unsigned char bytes[7]; tea = kzalloc(sizeof(*tea), GFP_KERNEL); if (tea == NULL) return -ENOMEM; if ((err = snd_i2c_device_create(bus, "TEA6330T", TEA6330T_ADDR, &device)) < 0) { kfree(tea); return err; } tea->device = device; tea->bus = bus; tea->equalizer = equalizer; tea->fader = fader; device->private_data = tea; device->private_free = snd_tea6330_free; snd_i2c_lock(bus); /* turn fader off and handle equalizer */ tea->regs[TEA6330T_SADDR_FADER] = 0x3f; tea->regs[TEA6330T_SADDR_AUDIO_SWITCH] = equalizer ? 0 : TEA6330T_EQN; /* initialize mixer */ if (!tea->equalizer) { tea->max_bass = 9; tea->max_treble = 8; default_bass = 3 + 4; tea->bass = 4; default_treble = 3 + 4; tea->treble = 4; } else { tea->max_bass = 5; tea->max_treble = 0; default_bass = 7 + 4; tea->bass = 4; default_treble = 3; tea->treble = 0; } tea->mleft = tea->mright = 0x14; tea->regs[TEA6330T_SADDR_BASS] = default_bass; tea->regs[TEA6330T_SADDR_TREBLE] = default_treble; /* compose I2C message and put the hardware to initial state */ bytes[0] = TEA6330T_SADDR_VOLUME_LEFT; for (idx = 0; idx < 6; idx++) bytes[idx+1] = tea->regs[idx]; if ((err = snd_i2c_sendbytes(device, bytes, 7)) < 0) goto __error; strcat(card->mixername, ",TEA6330T"); if ((err = snd_component_add(card, "TEA6330T")) < 0) goto __error; for (idx = 0; idx < ARRAY_SIZE(snd_tea6330t_controls); idx++) { knew = &snd_tea6330t_controls[idx]; if (tea->treble == 0 && !strcmp(knew->name, "Tone Control - Treble")) continue; if ((err = snd_ctl_add(card, snd_ctl_new1(knew, tea))) < 0) goto __error; } snd_i2c_unlock(bus); return 0; __error: snd_i2c_unlock(bus); snd_i2c_device_free(device); return err; }
int snd_cs8427_create(struct snd_i2c_bus *bus, unsigned char addr, unsigned int reset_timeout, struct snd_i2c_device **r_cs8427) { static unsigned char initvals1[] = { CS8427_REG_CONTROL1 | CS8427_REG_AUTOINC, /* */ CS8427_SWCLK | CS8427_TCBLDIR, /* */ 0x00, /* */ CS8427_TXDSERIAL | CS8427_SPDAES3RECEIVER, /* */ CS8427_RXDILRCK, /* */ CS8427_SIDEL | CS8427_SILRPOL, /* */ CS8427_SODEL | CS8427_SOLRPOL, }; static unsigned char initvals2[] = { CS8427_REG_RECVERRMASK | CS8427_REG_AUTOINC, /* */ /* */ 0xff, /* */ /* */ CS8427_CBMR | CS8427_DETCI, /* */ CS8427_UD | CS8427_EFTUI | CS8427_DETUI, }; int err; struct cs8427 *chip; struct snd_i2c_device *device; unsigned char buf[24]; 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); if (chip == NULL) { snd_i2c_device_free(device); return -ENOMEM; } device->private_free = snd_cs8427_free; snd_i2c_lock(bus); err = snd_cs8427_reg_read(device, CS8427_REG_ID_AND_VER); if (err != CS8427_VER8427A) { /* */ 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", CS8427_VER8427A, err); snd_printk(KERN_ERR " initialization is not completed\n"); return -EFAULT; } /* */ err = snd_cs8427_reg_write(device, CS8427_REG_CLOCKSOURCE, 0x00); if (err < 0) goto __fail; /* */ memcpy(chip->regmap + (initvals1[0] & 0x7f), initvals1 + 1, 6); if ((err = snd_i2c_sendbytes(device, initvals1, 7)) != 7) { err = err < 0 ? err : -EIO; goto __fail; } /* */ memset(buf, 0, 7); /* */ buf[0] = 9; /* */ if ((err = snd_i2c_sendbytes(device, buf, 7)) != 7) goto __fail; /* */ memcpy(chip->regmap + (initvals2[0] & 0x7f), initvals2 + 1, 3); if ((err = snd_i2c_sendbytes(device, initvals2, 4)) != 4) { err = err < 0 ? err : -EIO; goto __fail; } /* */ 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; memcpy(chip->playback.def_status, buf, 24); memcpy(chip->playback.pcm_status, buf, 24); snd_i2c_unlock(bus); /* */ if (reset_timeout < 1) reset_timeout = 1; chip->reset_timeout = reset_timeout; snd_cs8427_reset(device); #if 0 // { char buf[128]; int xx; buf[0] = 0x81; snd_i2c_sendbytes(device, buf, 1); snd_i2c_readbytes(device, buf, 127); for (xx = 0; xx < 127; xx++) printk(KERN_DEBUG "reg[0x%x] = 0x%x\n", xx+1, buf[xx]); } #endif if (r_cs8427) *r_cs8427 = device; return 0; __fail: snd_i2c_unlock(bus); snd_i2c_device_free(device); return err < 0 ? err : -EIO; }
int snd_cs8427_create(struct snd_i2c_bus *bus, unsigned char addr, unsigned int reset_timeout, struct snd_i2c_device **r_cs8427) { static unsigned char initvals1[] = { CS8427_REG_CONTROL1 | CS8427_REG_AUTOINC, /* 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 */ 0x00, /* 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_RXDILRCK, /* 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_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,*/ 0xff, /* set everything */ /* CS8427_REG_CSDATABUF: Registers 32-55 window to CS buffer Inhibit D->E transfers from overwriting first 5 bytes of CS data. Inhibit D->E transfers (all) of CS data. Allow E->F transfer of CS data. One byte mode; both A/B channels get same written CB data. A channel info is output to chip's EMPH* pin. */ CS8427_CBMR | CS8427_DETCI, /* CS8427_REG_UDATABUF: Use internal buffer to transmit User (U) data. Chip's U pin is an output. Transmit all O's for user data. Inhibit D->E transfers. Inhibit E->F transfers. */ CS8427_UD | CS8427_EFTUI | CS8427_DETUI, }; int err; struct cs8427 *chip; struct snd_i2c_device *device; unsigned char buf[24]; 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); if (chip == NULL) { snd_i2c_device_free(device); return -ENOMEM; } device->private_free = snd_cs8427_free; snd_i2c_lock(bus); err = snd_cs8427_reg_read(device, CS8427_REG_ID_AND_VER); if (err != CS8427_VER8427A) { /* give second chance */ #ifdef CONFIG_DEBUG_PRINTK snd_printk(KERN_WARNING "invalid CS8427 signature 0x%x: " "let me try again...\n", err); #else ; #endif 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", CS8427_VER8427A, err); snd_printk(KERN_ERR " initialization is not completed\n"); return -EFAULT; } /* turn off run bit while making changes to configuration */ 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); if ((err = snd_i2c_sendbytes(device, initvals1, 7)) != 7) { err = err < 0 ? err : -EIO; goto __fail; } /* Turn off CS8427 interrupt stuff that is not used in hardware */ memset(buf, 0, 7); /* from address 9 to 15 */ buf[0] = 9; /* register */ if ((err = snd_i2c_sendbytes(device, buf, 7)) != 7) goto __fail; /* send transfer initialization sequence */ memcpy(chip->regmap + (initvals2[0] & 0x7f), initvals2 + 1, 3); if ((err = snd_i2c_sendbytes(device, initvals2, 4)) != 4) { err = err < 0 ? err : -EIO; goto __fail; } /* write default channel status bytes */ 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; memcpy(chip->playback.def_status, buf, 24); memcpy(chip->playback.pcm_status, buf, 24); snd_i2c_unlock(bus); /* turn on run bit and rock'n'roll */ if (reset_timeout < 1) reset_timeout = 1; chip->reset_timeout = reset_timeout; snd_cs8427_reset(device); #if 0 // it's nice for read tests { char buf[128]; int xx; buf[0] = 0x81; snd_i2c_sendbytes(device, buf, 1); snd_i2c_readbytes(device, buf, 127); for (xx = 0; xx < 127; xx++) #ifdef CONFIG_DEBUG_PRINTK printk(KERN_DEBUG "reg[0x%x] = 0x%x\n", xx+1, buf[xx]); #else ; #endif } #endif if (r_cs8427) *r_cs8427 = device; return 0; __fail: snd_i2c_unlock(bus); snd_i2c_device_free(device); return err < 0 ? err : -EIO; }