Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 1 | /* |
| 2 | * linux/sound/pxa2xx-ac97.c -- AC97 support for the Intel PXA2xx chip. |
| 3 | * |
| 4 | * Author: Nicolas Pitre |
| 5 | * Created: Dec 02, 2004 |
| 6 | * Copyright: MontaVista Software Inc. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/module.h> |
Russell King | d052d1b | 2005-10-29 19:07:23 +0100 | [diff] [blame] | 15 | #include <linux/platform_device.h> |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 16 | |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 17 | #include <sound/core.h> |
| 18 | #include <sound/pcm.h> |
| 19 | #include <sound/ac97_codec.h> |
| 20 | #include <sound/initval.h> |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 21 | #include <sound/pxa2xx-lib.h> |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 22 | |
Eric Miao | 1f017a9 | 2008-11-28 14:19:33 +0800 | [diff] [blame] | 23 | #include <mach/regs-ac97.h> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 24 | #include <mach/audio.h> |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 25 | |
| 26 | #include "pxa2xx-pcm.h" |
| 27 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 28 | static void pxa2xx_ac97_reset(struct snd_ac97 *ac97) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 29 | { |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 30 | if (!pxa2xx_ac97_try_cold_reset(ac97)) { |
| 31 | pxa2xx_ac97_try_warm_reset(ac97); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 32 | } |
| 33 | |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 34 | pxa2xx_ac97_finish_reset(ac97); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 35 | } |
| 36 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 37 | static struct snd_ac97_bus_ops pxa2xx_ac97_ops = { |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 38 | .read = pxa2xx_ac97_read, |
| 39 | .write = pxa2xx_ac97_write, |
| 40 | .reset = pxa2xx_ac97_reset, |
| 41 | }; |
| 42 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 43 | static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_out = { |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 44 | .name = "AC97 PCM out", |
| 45 | .dev_addr = __PREG(PCDR), |
Eric Miao | 87f3dd7 | 2008-09-08 15:26:43 +0800 | [diff] [blame] | 46 | .drcmr = &DRCMR(12), |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 47 | .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG | |
| 48 | DCMD_BURST32 | DCMD_WIDTH4, |
| 49 | }; |
| 50 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 51 | static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_in = { |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 52 | .name = "AC97 PCM in", |
| 53 | .dev_addr = __PREG(PCDR), |
Eric Miao | 87f3dd7 | 2008-09-08 15:26:43 +0800 | [diff] [blame] | 54 | .drcmr = &DRCMR(11), |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 55 | .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | |
| 56 | DCMD_BURST32 | DCMD_WIDTH4, |
| 57 | }; |
| 58 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 59 | static struct snd_pcm *pxa2xx_ac97_pcm; |
| 60 | static struct snd_ac97 *pxa2xx_ac97_ac97; |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 61 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 62 | static int pxa2xx_ac97_pcm_startup(struct snd_pcm_substream *substream) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 63 | { |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 64 | struct snd_pcm_runtime *runtime = substream->runtime; |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 65 | pxa2xx_audio_ops_t *platform_ops; |
| 66 | int r; |
| 67 | |
| 68 | runtime->hw.channels_min = 2; |
| 69 | runtime->hw.channels_max = 2; |
| 70 | |
| 71 | r = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? |
| 72 | AC97_RATES_FRONT_DAC : AC97_RATES_ADC; |
| 73 | runtime->hw.rates = pxa2xx_ac97_ac97->rates[r]; |
| 74 | snd_pcm_limit_hw_rates(runtime); |
| 75 | |
| 76 | platform_ops = substream->pcm->card->dev->platform_data; |
| 77 | if (platform_ops && platform_ops->startup) |
| 78 | return platform_ops->startup(substream, platform_ops->priv); |
| 79 | else |
| 80 | return 0; |
| 81 | } |
| 82 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 83 | static void pxa2xx_ac97_pcm_shutdown(struct snd_pcm_substream *substream) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 84 | { |
| 85 | pxa2xx_audio_ops_t *platform_ops; |
| 86 | |
| 87 | platform_ops = substream->pcm->card->dev->platform_data; |
| 88 | if (platform_ops && platform_ops->shutdown) |
| 89 | platform_ops->shutdown(substream, platform_ops->priv); |
| 90 | } |
| 91 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 92 | static int pxa2xx_ac97_pcm_prepare(struct snd_pcm_substream *substream) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 93 | { |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 94 | struct snd_pcm_runtime *runtime = substream->runtime; |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 95 | int reg = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? |
| 96 | AC97_PCM_FRONT_DAC_RATE : AC97_PCM_LR_ADC_RATE; |
| 97 | return snd_ac97_set_rate(pxa2xx_ac97_ac97, reg, runtime->rate); |
| 98 | } |
| 99 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 100 | static struct pxa2xx_pcm_client pxa2xx_ac97_pcm_client = { |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 101 | .playback_params = &pxa2xx_ac97_pcm_out, |
| 102 | .capture_params = &pxa2xx_ac97_pcm_in, |
| 103 | .startup = pxa2xx_ac97_pcm_startup, |
| 104 | .shutdown = pxa2xx_ac97_pcm_shutdown, |
| 105 | .prepare = pxa2xx_ac97_pcm_prepare, |
| 106 | }; |
| 107 | |
| 108 | #ifdef CONFIG_PM |
| 109 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 110 | static int pxa2xx_ac97_do_suspend(struct snd_card *card, pm_message_t state) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 111 | { |
Takashi Iwai | 792a6c5 | 2005-11-17 17:19:25 +0100 | [diff] [blame] | 112 | pxa2xx_audio_ops_t *platform_ops = card->dev->platform_data; |
| 113 | |
| 114 | snd_power_change_state(card, SNDRV_CTL_POWER_D3cold); |
| 115 | snd_pcm_suspend_all(pxa2xx_ac97_pcm); |
| 116 | snd_ac97_suspend(pxa2xx_ac97_ac97); |
| 117 | if (platform_ops && platform_ops->suspend) |
| 118 | platform_ops->suspend(platform_ops->priv); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 119 | |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 120 | return pxa2xx_ac97_hw_suspend(); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 121 | } |
| 122 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 123 | static int pxa2xx_ac97_do_resume(struct snd_card *card) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 124 | { |
Takashi Iwai | 792a6c5 | 2005-11-17 17:19:25 +0100 | [diff] [blame] | 125 | pxa2xx_audio_ops_t *platform_ops = card->dev->platform_data; |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 126 | int rc; |
Takashi Iwai | 792a6c5 | 2005-11-17 17:19:25 +0100 | [diff] [blame] | 127 | |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 128 | rc = pxa2xx_ac97_hw_resume(); |
| 129 | if (rc) |
| 130 | return rc; |
| 131 | |
Takashi Iwai | 792a6c5 | 2005-11-17 17:19:25 +0100 | [diff] [blame] | 132 | if (platform_ops && platform_ops->resume) |
| 133 | platform_ops->resume(platform_ops->priv); |
| 134 | snd_ac97_resume(pxa2xx_ac97_ac97); |
| 135 | snd_power_change_state(card, SNDRV_CTL_POWER_D0); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 136 | |
| 137 | return 0; |
| 138 | } |
| 139 | |
Mike Rapoport | 2ba9fd0 | 2009-07-29 11:59:23 +0300 | [diff] [blame] | 140 | static int pxa2xx_ac97_suspend(struct device *dev) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 141 | { |
Mike Rapoport | 2ba9fd0 | 2009-07-29 11:59:23 +0300 | [diff] [blame] | 142 | struct snd_card *card = dev_get_drvdata(dev); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 143 | int ret = 0; |
| 144 | |
Russell King | 9480e30 | 2005-10-28 09:52:56 -0700 | [diff] [blame] | 145 | if (card) |
Dirk Opfer | a55bfdc | 2005-08-08 16:29:43 +0200 | [diff] [blame] | 146 | ret = pxa2xx_ac97_do_suspend(card, PMSG_SUSPEND); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 147 | |
| 148 | return ret; |
| 149 | } |
| 150 | |
Mike Rapoport | 2ba9fd0 | 2009-07-29 11:59:23 +0300 | [diff] [blame] | 151 | static int pxa2xx_ac97_resume(struct device *dev) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 152 | { |
Mike Rapoport | 2ba9fd0 | 2009-07-29 11:59:23 +0300 | [diff] [blame] | 153 | struct snd_card *card = dev_get_drvdata(dev); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 154 | int ret = 0; |
| 155 | |
Russell King | 9480e30 | 2005-10-28 09:52:56 -0700 | [diff] [blame] | 156 | if (card) |
Dirk Opfer | a55bfdc | 2005-08-08 16:29:43 +0200 | [diff] [blame] | 157 | ret = pxa2xx_ac97_do_resume(card); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 158 | |
| 159 | return ret; |
| 160 | } |
| 161 | |
Alexey Dobriyan | 4714521 | 2009-12-14 18:00:08 -0800 | [diff] [blame] | 162 | static const struct dev_pm_ops pxa2xx_ac97_pm_ops = { |
Mike Rapoport | 2ba9fd0 | 2009-07-29 11:59:23 +0300 | [diff] [blame] | 163 | .suspend = pxa2xx_ac97_suspend, |
| 164 | .resume = pxa2xx_ac97_resume, |
| 165 | }; |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 166 | #endif |
| 167 | |
Prarit Bhargava | 788c604 | 2007-02-13 13:11:11 +0100 | [diff] [blame] | 168 | static int __devinit pxa2xx_ac97_probe(struct platform_device *dev) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 169 | { |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 170 | struct snd_card *card; |
| 171 | struct snd_ac97_bus *ac97_bus; |
| 172 | struct snd_ac97_template ac97_template; |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 173 | int ret; |
Marek Vasut | 4ac0478 | 2009-07-30 02:55:01 +0200 | [diff] [blame] | 174 | pxa2xx_audio_ops_t *pdata = dev->dev.platform_data; |
| 175 | |
| 176 | if (dev->id >= 0) { |
| 177 | dev_err(&dev->dev, "PXA2xx has only one AC97 port.\n"); |
| 178 | ret = -ENXIO; |
| 179 | goto err_dev; |
| 180 | } |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 181 | |
Takashi Iwai | bd7dd77 | 2008-12-28 16:45:02 +0100 | [diff] [blame] | 182 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, |
| 183 | THIS_MODULE, 0, &card); |
| 184 | if (ret < 0) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 185 | goto err; |
| 186 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 187 | card->dev = &dev->dev; |
| 188 | strncpy(card->driver, dev->dev.driver->name, sizeof(card->driver)); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 189 | |
| 190 | ret = pxa2xx_pcm_new(card, &pxa2xx_ac97_pcm_client, &pxa2xx_ac97_pcm); |
| 191 | if (ret) |
| 192 | goto err; |
| 193 | |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 194 | ret = pxa2xx_ac97_hw_probe(dev); |
| 195 | if (ret) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 196 | goto err; |
| 197 | |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 198 | ret = snd_ac97_bus(card, 0, &pxa2xx_ac97_ops, NULL, &ac97_bus); |
| 199 | if (ret) |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 200 | goto err_remove; |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 201 | memset(&ac97_template, 0, sizeof(ac97_template)); |
| 202 | ret = snd_ac97_mixer(ac97_bus, &ac97_template, &pxa2xx_ac97_ac97); |
| 203 | if (ret) |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 204 | goto err_remove; |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 205 | |
| 206 | snprintf(card->shortname, sizeof(card->shortname), |
| 207 | "%s", snd_ac97_get_short_name(pxa2xx_ac97_ac97)); |
| 208 | snprintf(card->longname, sizeof(card->longname), |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 209 | "%s (%s)", dev->dev.driver->name, card->mixername); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 210 | |
Robert Schwebel | 367da15 | 2009-09-04 21:16:36 +0200 | [diff] [blame] | 211 | if (pdata && pdata->codec_pdata[0]) |
Marek Vasut | e2365bf | 2009-08-21 20:02:52 +0200 | [diff] [blame] | 212 | snd_ac97_dev_add_pdata(ac97_bus->codec[0], pdata->codec_pdata[0]); |
Takashi Iwai | f78dfac | 2007-12-17 16:24:04 +0100 | [diff] [blame] | 213 | snd_card_set_dev(card, &dev->dev); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 214 | ret = snd_card_register(card); |
| 215 | if (ret == 0) { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 216 | platform_set_drvdata(dev, card); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 217 | return 0; |
| 218 | } |
| 219 | |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 220 | err_remove: |
| 221 | pxa2xx_ac97_hw_remove(dev); |
| 222 | err: |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 223 | if (card) |
| 224 | snd_card_free(card); |
Marek Vasut | 4ac0478 | 2009-07-30 02:55:01 +0200 | [diff] [blame] | 225 | err_dev: |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 226 | return ret; |
| 227 | } |
| 228 | |
Prarit Bhargava | 788c604 | 2007-02-13 13:11:11 +0100 | [diff] [blame] | 229 | static int __devexit pxa2xx_ac97_remove(struct platform_device *dev) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 230 | { |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 231 | struct snd_card *card = platform_get_drvdata(dev); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 232 | |
| 233 | if (card) { |
| 234 | snd_card_free(card); |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 235 | platform_set_drvdata(dev, NULL); |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 236 | pxa2xx_ac97_hw_remove(dev); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 237 | } |
| 238 | |
| 239 | return 0; |
| 240 | } |
| 241 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 242 | static struct platform_driver pxa2xx_ac97_driver = { |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 243 | .probe = pxa2xx_ac97_probe, |
Prarit Bhargava | 788c604 | 2007-02-13 13:11:11 +0100 | [diff] [blame] | 244 | .remove = __devexit_p(pxa2xx_ac97_remove), |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 245 | .driver = { |
| 246 | .name = "pxa2xx-ac97", |
Kay Sievers | 8b45a20 | 2008-04-14 13:33:36 +0200 | [diff] [blame] | 247 | .owner = THIS_MODULE, |
Mike Rapoport | 2ba9fd0 | 2009-07-29 11:59:23 +0300 | [diff] [blame] | 248 | #ifdef CONFIG_PM |
| 249 | .pm = &pxa2xx_ac97_pm_ops, |
| 250 | #endif |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 251 | }, |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 252 | }; |
| 253 | |
Axel Lin | a09452e | 2011-11-27 16:36:04 +0800 | [diff] [blame^] | 254 | module_platform_driver(pxa2xx_ac97_driver); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 255 | |
| 256 | MODULE_AUTHOR("Nicolas Pitre"); |
| 257 | MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip"); |
| 258 | MODULE_LICENSE("GPL"); |
Kay Sievers | 8b45a20 | 2008-04-14 13:33:36 +0200 | [diff] [blame] | 259 | MODULE_ALIAS("platform:pxa2xx-ac97"); |