16 #include <linux/device.h>
20 #include <linux/module.h>
37 #define BITRATE_MIN 8000
38 #define BITRATE_TARGET CONFIG_SND_AT73C213_TARGET_BITRATE
39 #define BITRATE_MAX 50000
42 static u8 snd_at73c213_original_image[18] =
84 #define get_chip(card) ((struct snd_at73c213 *)card->private_data)
96 spi_message_init(&msg);
103 spi_message_add_tail(&msg_xfer, &msg);
122 .buffer_bytes_max = 64 * 1024 - 1,
123 .period_bytes_min = 512,
124 .period_bytes_max = 64 * 1024 - 1,
135 unsigned long dac_rate_new, ssc_div;
137 unsigned long ssc_div_max, ssc_div_min;
153 max_tries = (ssc_div_max - ssc_div_min) / 2;
159 ssc_div = (ssc_div + 1) & ~1
UL;
161 if ((ssc_rate / (ssc_div * 2 * 16)) <
BITRATE_MIN) {
174 dac_rate_new = 8 * (ssc_rate / ssc_div);
181 if ((status/256) == (dac_rate_new/256))
185 }
while (--max_tries);
199 chip->
bitrate = ssc_rate / (ssc_div * 16 * 2);
202 "at73c213: supported bitrate is %lu (%lu divider)\n",
221 runtime->
hw = snd_at73c213_playback_hw;
242 val =
SSC_BFINS(TFMR_DATNB, channels - 1, val);
260 block_size = frames_to_bytes(runtime, runtime->
period_size);
269 (
long)runtime->
dma_addr + block_size);
282 spin_lock(&chip->
lock);
294 dev_dbg(&chip->
spi->dev,
"spurious command %x\n", cmd);
299 spin_unlock(&chip->
lock);
315 pos = bytes_to_frames(runtime, bytes);
322 static struct snd_pcm_ops at73c213_playback_ops = {
323 .open = snd_at73c213_pcm_open,
324 .close = snd_at73c213_pcm_close,
326 .hw_params = snd_at73c213_pcm_hw_params,
327 .hw_free = snd_at73c213_pcm_hw_free,
328 .prepare = snd_at73c213_pcm_prepare,
329 .trigger = snd_at73c213_pcm_trigger,
330 .pointer = snd_at73c213_pcm_pointer,
352 64 * 1024, 64 * 1024);
367 spin_lock(&chip->
lock);
369 block_size = frames_to_bytes(runtime, runtime->
period_size);
372 if (status &
SSC_BIT(IMR_ENDTX)) {
376 next_period = chip->
period + 1;
377 if (next_period == runtime->
periods)
380 offset = block_size * next_period;
390 spin_unlock(&chip->
lock);
392 if (status &
SSC_BIT(IMR_ENDTX))
401 static int snd_at73c213_mono_get(
struct snd_kcontrol *kcontrol,
412 ucontrol->
value.integer.value[0] =
416 ucontrol->
value.integer.value[0] =
417 mask - ucontrol->
value.integer.value[0];
424 static int snd_at73c213_mono_put(
struct snd_kcontrol *kcontrol,
435 val = (ucontrol->
value.integer.value[0] &
mask);
444 retval = snd_at73c213_write_reg(chip, reg, val);
454 static int snd_at73c213_stereo_info(
struct snd_kcontrol *kcontrol,
471 static int snd_at73c213_stereo_get(
struct snd_kcontrol *kcontrol,
484 ucontrol->
value.integer.value[0] =
485 (chip->
reg_image[left_reg] >> shift_left) & mask;
486 ucontrol->
value.integer.value[1] =
490 ucontrol->
value.integer.value[0] =
491 mask - ucontrol->
value.integer.value[0];
492 ucontrol->
value.integer.value[1] =
493 mask - ucontrol->
value.integer.value[1];
501 static int snd_at73c213_stereo_put(
struct snd_kcontrol *kcontrol,
512 unsigned short val1, val2;
514 val1 = ucontrol->
value.integer.value[0] &
mask;
515 val2 = ucontrol->
value.integer.value[1] &
mask;
525 val1 = (chip->
reg_image[left_reg] & ~(mask << shift_left)) | val1;
527 change = val1 != chip->
reg_image[left_reg]
529 retval = snd_at73c213_write_reg(chip, left_reg, val1);
534 retval = snd_at73c213_write_reg(chip, right_reg, val2);
548 #define snd_at73c213_mono_switch_info snd_ctl_boolean_mono_info
550 static int snd_at73c213_mono_switch_get(
struct snd_kcontrol *kcontrol,
560 ucontrol->
value.integer.value[0] =
564 ucontrol->
value.integer.value[0] =
565 0x01 - ucontrol->
value.integer.value[0];
572 static int snd_at73c213_mono_switch_put(
struct snd_kcontrol *kcontrol,
583 if (ucontrol->
value.integer.value[0])
597 retval = snd_at73c213_write_reg(chip, reg, val);
607 static int snd_at73c213_pa_volume_info(
struct snd_kcontrol *kcontrol,
618 static int snd_at73c213_line_capture_volume_info(
631 static int snd_at73c213_aux_capture_volume_info(
644 #define AT73C213_MONO_SWITCH(xname, xindex, reg, shift, mask, invert) \
646 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
649 .info = snd_at73c213_mono_switch_info, \
650 .get = snd_at73c213_mono_switch_get, \
651 .put = snd_at73c213_mono_switch_put, \
652 .private_value = (reg | (shift << 8) | (mask << 16) | (invert << 24)) \
655 #define AT73C213_STEREO(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
657 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
660 .info = snd_at73c213_stereo_info, \
661 .get = snd_at73c213_stereo_get, \
662 .put = snd_at73c213_stereo_put, \
663 .private_value = (left_reg | (right_reg << 8) \
664 | (shift_left << 16) | (shift_right << 19) \
665 | (mask << 24) | (invert << 22)) \
677 .name =
"PA Playback Volume",
679 .info = snd_at73c213_pa_volume_info,
680 .get = snd_at73c213_mono_get,
681 .put = snd_at73c213_mono_put,
683 (0x0f << 16) | (1 << 24),
690 .name =
"Aux Capture Volume",
692 .info = snd_at73c213_aux_capture_volume_info,
693 .get = snd_at73c213_mono_get,
694 .put = snd_at73c213_mono_put,
695 .private_value =
DAC_AUXG | (0 << 8) | (0x1f << 16) | (1 << 24),
701 .name =
"Line Capture Volume",
703 .info = snd_at73c213_line_capture_volume_info,
704 .get = snd_at73c213_stereo_get,
705 .put = snd_at73c213_stereo_put,
707 | (0x1f << 24) | (1 << 22),
724 for (idx = 0; idx <
ARRAY_SIZE(snd_at73c213_controls); idx++) {
735 for (idx = 1; idx <
ARRAY_SIZE(snd_at73c213_controls) + 1; idx++) {
759 |
SSC_BF(TCMR_PERIOD, 16 - 1));
768 SSC_BF(TFMR_DATLEN, 16 - 1)
771 |
SSC_BF(TFMR_FSLEN, 16 - 1)
780 unsigned char dac_ctrl = 0;
782 retval = snd_at73c213_set_bitrate(chip);
790 retval = snd_at73c213_write_reg(chip,
DAC_RST, 0x04);
794 retval = snd_at73c213_write_reg(chip,
DAC_RST, 0x03);
799 retval = snd_at73c213_write_reg(chip,
DAC_PRECH, 0xff);
805 retval = snd_at73c213_write_reg(chip,
DAC_CTRL,
813 retval = snd_at73c213_write_reg(chip,
PA_CTRL,
831 retval = snd_at73c213_write_reg(chip,
DAC_CTRL, dac_ctrl);
836 retval = snd_at73c213_write_reg(chip,
DAC_LMPG, 0x3f);
839 retval = snd_at73c213_write_reg(chip,
DAC_RMPG, 0x3f);
842 retval = snd_at73c213_write_reg(chip,
DAC_LLOG, 0x3f);
845 retval = snd_at73c213_write_reg(chip,
DAC_RLOG, 0x3f);
848 retval = snd_at73c213_write_reg(chip,
DAC_LLIG, 0x11);
851 retval = snd_at73c213_write_reg(chip,
DAC_RLIG, 0x11);
854 retval = snd_at73c213_write_reg(chip,
DAC_AUXG, 0x11);
869 static int snd_at73c213_dev_free(
struct snd_device *device)
874 if (chip->
irq >= 0) {
891 irq = chip->
ssc->irq;
900 retval =
request_irq(irq, snd_at73c213_interrupt, 0,
"at73c213", chip);
902 dev_dbg(&chip->
spi->dev,
"unable to request irq %d\n", irq);
908 sizeof(snd_at73c213_original_image));
910 retval = snd_at73c213_ssc_init(chip);
914 retval = snd_at73c213_chip_init(chip);
918 retval = snd_at73c213_pcm_new(chip, 0);
926 retval = snd_at73c213_mixer(chip);
951 board = spi->
dev.platform_data;
964 return PTR_ERR(board->
dac_clk);
979 if (IS_ERR(chip->
ssc)) {
980 dev_dbg(&spi->
dev,
"could not get ssc%d device\n",
982 retval = PTR_ERR(chip->
ssc);
986 retval = snd_at73c213_dev_init(card, spi);
1020 retval = snd_at73c213_write_reg(chip,
DAC_LMPG, 0x3f);
1023 retval = snd_at73c213_write_reg(chip,
DAC_RMPG, 0x3f);
1026 retval = snd_at73c213_write_reg(chip,
DAC_LLOG, 0x3f);
1029 retval = snd_at73c213_write_reg(chip,
DAC_RLOG, 0x3f);
1032 retval = snd_at73c213_write_reg(chip,
DAC_LLIG, 0x11);
1035 retval = snd_at73c213_write_reg(chip,
DAC_RLIG, 0x11);
1038 retval = snd_at73c213_write_reg(chip,
DAC_AUXG, 0x11);
1043 retval = snd_at73c213_write_reg(chip,
PA_CTRL,
1048 retval = snd_at73c213_write_reg(chip,
PA_CTRL,
1054 retval = snd_at73c213_write_reg(chip,
DAC_CTRL, 0x0c);
1058 retval = snd_at73c213_write_reg(chip,
DAC_CTRL, 0x00);
1063 retval = snd_at73c213_write_reg(chip,
DAC_PRECH, 0x00);
1101 #define snd_at73c213_suspend NULL
1102 #define snd_at73c213_resume NULL
1109 .probe = snd_at73c213_probe,