aboutsummaryrefslogtreecommitdiffstats
path: root/sound/soc/codecs/wm8971.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-11 12:19:35 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-11 12:19:35 -0400
commita9c86d42599519f3d83b5f46bdab25046fe47b84 (patch)
tree9b269e3162e5cc0c1a8dfc3349303c902718a9a9 /sound/soc/codecs/wm8971.c
parenta12e4d304ce701844c639541d90df86e165d03f9 (diff)
parent1110afbe728838ac7ce973c37af9e11385dbaef9 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (377 commits) ASoC: au1x: PSC-AC97 bugfixes ALSA: dummy - Increase MAX_PCM_SUBSTREAMS to 128 ALSA: dummy - Add debug proc file ALSA: Add const prefix to proc helper functions ALSA: Re-export snd_pcm_format_name() function ALSA: hda - Use auto model for HP laptops with ALC268 codec ALSA: cs46xx - Fix minimum period size ASoC: Fix WM835x Out4 capture enumeration ALSA: Remove unneeded ifdef from sound/core.h ALSA: Remove struct snd_monitor_file from public sound/core.h ASoC: Remove unuused hw_read_t sound: oxygen: work around MCE when changing volume ALSA: dummy - Fake buffer allocations ALSA: hda/realtek: Added support for CLEVO M540R subsystem, 6 channel + digital ASoC: fix pxa2xx-ac97.c breakage ALSA: dummy - Fix the timer calculation in systimer mode ALSA: dummy - Add more description ALSA: dummy - Better jiffies handling ALSA: dummy - Support high-res timer mode ALSA: Release v1.0.21 ...
Diffstat (limited to 'sound/soc/codecs/wm8971.c')
-rw-r--r--sound/soc/codecs/wm8971.c127
1 files changed, 47 insertions, 80 deletions
diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c
index 032dca22dbd3..d66efb0546ea 100644
--- a/sound/soc/codecs/wm8971.c
+++ b/sound/soc/codecs/wm8971.c
@@ -59,44 +59,7 @@ static const u16 wm8971_reg[] = {
59 0x0079, 0x0079, 0x0079, /* 40 */ 59 0x0079, 0x0079, 0x0079, /* 40 */
60}; 60};
61 61
62static inline unsigned int wm8971_read_reg_cache(struct snd_soc_codec *codec, 62#define wm8971_reset(c) snd_soc_write(c, WM8971_RESET, 0)
63 unsigned int reg)
64{
65 u16 *cache = codec->reg_cache;
66 if (reg < WM8971_REG_COUNT)
67 return cache[reg];
68
69 return -1;
70}
71
72static inline void wm8971_write_reg_cache(struct snd_soc_codec *codec,
73 unsigned int reg, unsigned int value)
74{
75 u16 *cache = codec->reg_cache;
76 if (reg < WM8971_REG_COUNT)
77 cache[reg] = value;
78}
79
80static int wm8971_write(struct snd_soc_codec *codec, unsigned int reg,
81 unsigned int value)
82{
83 u8 data[2];
84
85 /* data is
86 * D15..D9 WM8753 register offset
87 * D8...D0 register data
88 */
89 data[0] = (reg << 1) | ((value >> 8) & 0x0001);
90 data[1] = value & 0x00ff;
91
92 wm8971_write_reg_cache (codec, reg, value);
93 if (codec->hw_write(codec->control_data, data, 2) == 2)
94 return 0;
95 else
96 return -EIO;
97}
98
99#define wm8971_reset(c) wm8971_write(c, WM8971_RESET, 0)
100 63
101/* WM8971 Controls */ 64/* WM8971 Controls */
102static const char *wm8971_bass[] = { "Linear Control", "Adaptive Boost" }; 65static const char *wm8971_bass[] = { "Linear Control", "Adaptive Boost" };
@@ -521,7 +484,7 @@ static int wm8971_set_dai_fmt(struct snd_soc_dai *codec_dai,
521 return -EINVAL; 484 return -EINVAL;
522 } 485 }
523 486
524 wm8971_write(codec, WM8971_IFACE, iface); 487 snd_soc_write(codec, WM8971_IFACE, iface);
525 return 0; 488 return 0;
526} 489}
527 490
@@ -533,8 +496,8 @@ static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream,
533 struct snd_soc_device *socdev = rtd->socdev; 496 struct snd_soc_device *socdev = rtd->socdev;
534 struct snd_soc_codec *codec = socdev->card->codec; 497 struct snd_soc_codec *codec = socdev->card->codec;
535 struct wm8971_priv *wm8971 = codec->private_data; 498 struct wm8971_priv *wm8971 = codec->private_data;
536 u16 iface = wm8971_read_reg_cache(codec, WM8971_IFACE) & 0x1f3; 499 u16 iface = snd_soc_read(codec, WM8971_IFACE) & 0x1f3;
537 u16 srate = wm8971_read_reg_cache(codec, WM8971_SRATE) & 0x1c0; 500 u16 srate = snd_soc_read(codec, WM8971_SRATE) & 0x1c0;
538 int coeff = get_coeff(wm8971->sysclk, params_rate(params)); 501 int coeff = get_coeff(wm8971->sysclk, params_rate(params));
539 502
540 /* bit size */ 503 /* bit size */
@@ -553,9 +516,9 @@ static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream,
553 } 516 }
554 517
555 /* set iface & srate */ 518 /* set iface & srate */
556 wm8971_write(codec, WM8971_IFACE, iface); 519 snd_soc_write(codec, WM8971_IFACE, iface);
557 if (coeff >= 0) 520 if (coeff >= 0)
558 wm8971_write(codec, WM8971_SRATE, srate | 521 snd_soc_write(codec, WM8971_SRATE, srate |
559 (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb); 522 (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb);
560 523
561 return 0; 524 return 0;
@@ -564,33 +527,33 @@ static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream,
564static int wm8971_mute(struct snd_soc_dai *dai, int mute) 527static int wm8971_mute(struct snd_soc_dai *dai, int mute)
565{ 528{
566 struct snd_soc_codec *codec = dai->codec; 529 struct snd_soc_codec *codec = dai->codec;
567 u16 mute_reg = wm8971_read_reg_cache(codec, WM8971_ADCDAC) & 0xfff7; 530 u16 mute_reg = snd_soc_read(codec, WM8971_ADCDAC) & 0xfff7;
568 531
569 if (mute) 532 if (mute)
570 wm8971_write(codec, WM8971_ADCDAC, mute_reg | 0x8); 533 snd_soc_write(codec, WM8971_ADCDAC, mute_reg | 0x8);
571 else 534 else
572 wm8971_write(codec, WM8971_ADCDAC, mute_reg); 535 snd_soc_write(codec, WM8971_ADCDAC, mute_reg);
573 return 0; 536 return 0;
574} 537}
575 538
576static int wm8971_set_bias_level(struct snd_soc_codec *codec, 539static int wm8971_set_bias_level(struct snd_soc_codec *codec,
577 enum snd_soc_bias_level level) 540 enum snd_soc_bias_level level)
578{ 541{
579 u16 pwr_reg = wm8971_read_reg_cache(codec, WM8971_PWR1) & 0xfe3e; 542 u16 pwr_reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
580 543
581 switch (level) { 544 switch (level) {
582 case SND_SOC_BIAS_ON: 545 case SND_SOC_BIAS_ON:
583 /* set vmid to 50k and unmute dac */ 546 /* set vmid to 50k and unmute dac */
584 wm8971_write(codec, WM8971_PWR1, pwr_reg | 0x00c1); 547 snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x00c1);
585 break; 548 break;
586 case SND_SOC_BIAS_PREPARE: 549 case SND_SOC_BIAS_PREPARE:
587 break; 550 break;
588 case SND_SOC_BIAS_STANDBY: 551 case SND_SOC_BIAS_STANDBY:
589 /* mute dac and set vmid to 500k, enable VREF */ 552 /* mute dac and set vmid to 500k, enable VREF */
590 wm8971_write(codec, WM8971_PWR1, pwr_reg | 0x0140); 553 snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140);
591 break; 554 break;
592 case SND_SOC_BIAS_OFF: 555 case SND_SOC_BIAS_OFF:
593 wm8971_write(codec, WM8971_PWR1, 0x0001); 556 snd_soc_write(codec, WM8971_PWR1, 0x0001);
594 break; 557 break;
595 } 558 }
596 codec->bias_level = level; 559 codec->bias_level = level;
@@ -667,8 +630,8 @@ static int wm8971_resume(struct platform_device *pdev)
667 630
668 /* charge wm8971 caps */ 631 /* charge wm8971 caps */
669 if (codec->suspend_bias_level == SND_SOC_BIAS_ON) { 632 if (codec->suspend_bias_level == SND_SOC_BIAS_ON) {
670 reg = wm8971_read_reg_cache(codec, WM8971_PWR1) & 0xfe3e; 633 reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
671 wm8971_write(codec, WM8971_PWR1, reg | 0x01c0); 634 snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0);
672 codec->bias_level = SND_SOC_BIAS_ON; 635 codec->bias_level = SND_SOC_BIAS_ON;
673 queue_delayed_work(wm8971_workq, &codec->delayed_work, 636 queue_delayed_work(wm8971_workq, &codec->delayed_work,
674 msecs_to_jiffies(1000)); 637 msecs_to_jiffies(1000));
@@ -677,15 +640,14 @@ static int wm8971_resume(struct platform_device *pdev)
677 return 0; 640 return 0;
678} 641}
679 642
680static int wm8971_init(struct snd_soc_device *socdev) 643static int wm8971_init(struct snd_soc_device *socdev,
644 enum snd_soc_control_type control)
681{ 645{
682 struct snd_soc_codec *codec = socdev->card->codec; 646 struct snd_soc_codec *codec = socdev->card->codec;
683 int reg, ret = 0; 647 int reg, ret = 0;
684 648
685 codec->name = "WM8971"; 649 codec->name = "WM8971";
686 codec->owner = THIS_MODULE; 650 codec->owner = THIS_MODULE;
687 codec->read = wm8971_read_reg_cache;
688 codec->write = wm8971_write;
689 codec->set_bias_level = wm8971_set_bias_level; 651 codec->set_bias_level = wm8971_set_bias_level;
690 codec->dai = &wm8971_dai; 652 codec->dai = &wm8971_dai;
691 codec->reg_cache_size = ARRAY_SIZE(wm8971_reg); 653 codec->reg_cache_size = ARRAY_SIZE(wm8971_reg);
@@ -695,42 +657,48 @@ static int wm8971_init(struct snd_soc_device *socdev)
695 if (codec->reg_cache == NULL) 657 if (codec->reg_cache == NULL)
696 return -ENOMEM; 658 return -ENOMEM;
697 659
660 ret = snd_soc_codec_set_cache_io(codec, 7, 9, control);
661 if (ret < 0) {
662 printk(KERN_ERR "wm8971: failed to set cache I/O: %d\n", ret);
663 goto err;
664 }
665
698 wm8971_reset(codec); 666 wm8971_reset(codec);
699 667
700 /* register pcms */ 668 /* register pcms */
701 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); 669 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
702 if (ret < 0) { 670 if (ret < 0) {
703 printk(KERN_ERR "wm8971: failed to create pcms\n"); 671 printk(KERN_ERR "wm8971: failed to create pcms\n");
704 goto pcm_err; 672 goto err;
705 } 673 }
706 674
707 /* charge output caps - set vmid to 5k for quick power up */ 675 /* charge output caps - set vmid to 5k for quick power up */
708 reg = wm8971_read_reg_cache(codec, WM8971_PWR1) & 0xfe3e; 676 reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
709 wm8971_write(codec, WM8971_PWR1, reg | 0x01c0); 677 snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0);
710 codec->bias_level = SND_SOC_BIAS_STANDBY; 678 codec->bias_level = SND_SOC_BIAS_STANDBY;
711 queue_delayed_work(wm8971_workq, &codec->delayed_work, 679 queue_delayed_work(wm8971_workq, &codec->delayed_work,
712 msecs_to_jiffies(1000)); 680 msecs_to_jiffies(1000));
713 681
714 /* set the update bits */ 682 /* set the update bits */
715 reg = wm8971_read_reg_cache(codec, WM8971_LDAC); 683 reg = snd_soc_read(codec, WM8971_LDAC);
716 wm8971_write(codec, WM8971_LDAC, reg | 0x0100); 684 snd_soc_write(codec, WM8971_LDAC, reg | 0x0100);
717 reg = wm8971_read_reg_cache(codec, WM8971_RDAC); 685 reg = snd_soc_read(codec, WM8971_RDAC);
718 wm8971_write(codec, WM8971_RDAC, reg | 0x0100); 686 snd_soc_write(codec, WM8971_RDAC, reg | 0x0100);
719 687
720 reg = wm8971_read_reg_cache(codec, WM8971_LOUT1V); 688 reg = snd_soc_read(codec, WM8971_LOUT1V);
721 wm8971_write(codec, WM8971_LOUT1V, reg | 0x0100); 689 snd_soc_write(codec, WM8971_LOUT1V, reg | 0x0100);
722 reg = wm8971_read_reg_cache(codec, WM8971_ROUT1V); 690 reg = snd_soc_read(codec, WM8971_ROUT1V);
723 wm8971_write(codec, WM8971_ROUT1V, reg | 0x0100); 691 snd_soc_write(codec, WM8971_ROUT1V, reg | 0x0100);
724 692
725 reg = wm8971_read_reg_cache(codec, WM8971_LOUT2V); 693 reg = snd_soc_read(codec, WM8971_LOUT2V);
726 wm8971_write(codec, WM8971_LOUT2V, reg | 0x0100); 694 snd_soc_write(codec, WM8971_LOUT2V, reg | 0x0100);
727 reg = wm8971_read_reg_cache(codec, WM8971_ROUT2V); 695 reg = snd_soc_read(codec, WM8971_ROUT2V);
728 wm8971_write(codec, WM8971_ROUT2V, reg | 0x0100); 696 snd_soc_write(codec, WM8971_ROUT2V, reg | 0x0100);
729 697
730 reg = wm8971_read_reg_cache(codec, WM8971_LINVOL); 698 reg = snd_soc_read(codec, WM8971_LINVOL);
731 wm8971_write(codec, WM8971_LINVOL, reg | 0x0100); 699 snd_soc_write(codec, WM8971_LINVOL, reg | 0x0100);
732 reg = wm8971_read_reg_cache(codec, WM8971_RINVOL); 700 reg = snd_soc_read(codec, WM8971_RINVOL);
733 wm8971_write(codec, WM8971_RINVOL, reg | 0x0100); 701 snd_soc_write(codec, WM8971_RINVOL, reg | 0x0100);
734 702
735 snd_soc_add_controls(codec, wm8971_snd_controls, 703 snd_soc_add_controls(codec, wm8971_snd_controls,
736 ARRAY_SIZE(wm8971_snd_controls)); 704 ARRAY_SIZE(wm8971_snd_controls));
@@ -745,7 +713,7 @@ static int wm8971_init(struct snd_soc_device *socdev)
745card_err: 713card_err:
746 snd_soc_free_pcms(socdev); 714 snd_soc_free_pcms(socdev);
747 snd_soc_dapm_free(socdev); 715 snd_soc_dapm_free(socdev);
748pcm_err: 716err:
749 kfree(codec->reg_cache); 717 kfree(codec->reg_cache);
750 return ret; 718 return ret;
751} 719}
@@ -767,7 +735,7 @@ static int wm8971_i2c_probe(struct i2c_client *i2c,
767 735
768 codec->control_data = i2c; 736 codec->control_data = i2c;
769 737
770 ret = wm8971_init(socdev); 738 ret = wm8971_init(socdev, SND_SOC_I2C);
771 if (ret < 0) 739 if (ret < 0)
772 pr_err("failed to initialise WM8971\n"); 740 pr_err("failed to initialise WM8971\n");
773 741
@@ -877,7 +845,6 @@ static int wm8971_probe(struct platform_device *pdev)
877 845
878#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE) 846#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
879 if (setup->i2c_address) { 847 if (setup->i2c_address) {
880 codec->hw_write = (hw_write_t)i2c_master_send;
881 ret = wm8971_add_i2c_device(pdev, setup); 848 ret = wm8971_add_i2c_device(pdev, setup);
882 } 849 }
883#endif 850#endif