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 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 23 | #include <mach/hardware.h> |
| 24 | #include <mach/pxa-regs.h> |
Eric Miao | 1f017a9 | 2008-11-28 14:19:33 +0800 | [diff] [blame^] | 25 | #include <mach/regs-ac97.h> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 26 | #include <mach/audio.h> |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 27 | |
| 28 | #include "pxa2xx-pcm.h" |
| 29 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 30 | static void pxa2xx_ac97_reset(struct snd_ac97 *ac97) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 31 | { |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 32 | if (!pxa2xx_ac97_try_cold_reset(ac97)) { |
| 33 | pxa2xx_ac97_try_warm_reset(ac97); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 34 | } |
| 35 | |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 36 | pxa2xx_ac97_finish_reset(ac97); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 37 | } |
| 38 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 39 | static struct snd_ac97_bus_ops pxa2xx_ac97_ops = { |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 40 | .read = pxa2xx_ac97_read, |
| 41 | .write = pxa2xx_ac97_write, |
| 42 | .reset = pxa2xx_ac97_reset, |
| 43 | }; |
| 44 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 45 | static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_out = { |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 46 | .name = "AC97 PCM out", |
| 47 | .dev_addr = __PREG(PCDR), |
Eric Miao | 87f3dd7 | 2008-09-08 15:26:43 +0800 | [diff] [blame] | 48 | .drcmr = &DRCMR(12), |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 49 | .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG | |
| 50 | DCMD_BURST32 | DCMD_WIDTH4, |
| 51 | }; |
| 52 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 53 | static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_in = { |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 54 | .name = "AC97 PCM in", |
| 55 | .dev_addr = __PREG(PCDR), |
Eric Miao | 87f3dd7 | 2008-09-08 15:26:43 +0800 | [diff] [blame] | 56 | .drcmr = &DRCMR(11), |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 57 | .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | |
| 58 | DCMD_BURST32 | DCMD_WIDTH4, |
| 59 | }; |
| 60 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 61 | static struct snd_pcm *pxa2xx_ac97_pcm; |
| 62 | static struct snd_ac97 *pxa2xx_ac97_ac97; |
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 | static int pxa2xx_ac97_pcm_startup(struct snd_pcm_substream *substream) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 65 | { |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 66 | struct snd_pcm_runtime *runtime = substream->runtime; |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 67 | pxa2xx_audio_ops_t *platform_ops; |
| 68 | int r; |
| 69 | |
| 70 | runtime->hw.channels_min = 2; |
| 71 | runtime->hw.channels_max = 2; |
| 72 | |
| 73 | r = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? |
| 74 | AC97_RATES_FRONT_DAC : AC97_RATES_ADC; |
| 75 | runtime->hw.rates = pxa2xx_ac97_ac97->rates[r]; |
| 76 | snd_pcm_limit_hw_rates(runtime); |
| 77 | |
| 78 | platform_ops = substream->pcm->card->dev->platform_data; |
| 79 | if (platform_ops && platform_ops->startup) |
| 80 | return platform_ops->startup(substream, platform_ops->priv); |
| 81 | else |
| 82 | return 0; |
| 83 | } |
| 84 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 85 | static void pxa2xx_ac97_pcm_shutdown(struct snd_pcm_substream *substream) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 86 | { |
| 87 | pxa2xx_audio_ops_t *platform_ops; |
| 88 | |
| 89 | platform_ops = substream->pcm->card->dev->platform_data; |
| 90 | if (platform_ops && platform_ops->shutdown) |
| 91 | platform_ops->shutdown(substream, platform_ops->priv); |
| 92 | } |
| 93 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 94 | static int pxa2xx_ac97_pcm_prepare(struct snd_pcm_substream *substream) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 95 | { |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 96 | struct snd_pcm_runtime *runtime = substream->runtime; |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 97 | int reg = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? |
| 98 | AC97_PCM_FRONT_DAC_RATE : AC97_PCM_LR_ADC_RATE; |
| 99 | return snd_ac97_set_rate(pxa2xx_ac97_ac97, reg, runtime->rate); |
| 100 | } |
| 101 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 102 | static struct pxa2xx_pcm_client pxa2xx_ac97_pcm_client = { |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 103 | .playback_params = &pxa2xx_ac97_pcm_out, |
| 104 | .capture_params = &pxa2xx_ac97_pcm_in, |
| 105 | .startup = pxa2xx_ac97_pcm_startup, |
| 106 | .shutdown = pxa2xx_ac97_pcm_shutdown, |
| 107 | .prepare = pxa2xx_ac97_pcm_prepare, |
| 108 | }; |
| 109 | |
| 110 | #ifdef CONFIG_PM |
| 111 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 112 | 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] | 113 | { |
Takashi Iwai | 792a6c5 | 2005-11-17 17:19:25 +0100 | [diff] [blame] | 114 | pxa2xx_audio_ops_t *platform_ops = card->dev->platform_data; |
| 115 | |
| 116 | snd_power_change_state(card, SNDRV_CTL_POWER_D3cold); |
| 117 | snd_pcm_suspend_all(pxa2xx_ac97_pcm); |
| 118 | snd_ac97_suspend(pxa2xx_ac97_ac97); |
| 119 | if (platform_ops && platform_ops->suspend) |
| 120 | platform_ops->suspend(platform_ops->priv); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 121 | |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 122 | return pxa2xx_ac97_hw_suspend(); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 123 | } |
| 124 | |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 125 | static int pxa2xx_ac97_do_resume(struct snd_card *card) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 126 | { |
Takashi Iwai | 792a6c5 | 2005-11-17 17:19:25 +0100 | [diff] [blame] | 127 | pxa2xx_audio_ops_t *platform_ops = card->dev->platform_data; |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 128 | int rc; |
Takashi Iwai | 792a6c5 | 2005-11-17 17:19:25 +0100 | [diff] [blame] | 129 | |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 130 | rc = pxa2xx_ac97_hw_resume(); |
| 131 | if (rc) |
| 132 | return rc; |
| 133 | |
Takashi Iwai | 792a6c5 | 2005-11-17 17:19:25 +0100 | [diff] [blame] | 134 | if (platform_ops && platform_ops->resume) |
| 135 | platform_ops->resume(platform_ops->priv); |
| 136 | snd_ac97_resume(pxa2xx_ac97_ac97); |
| 137 | snd_power_change_state(card, SNDRV_CTL_POWER_D0); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 138 | |
| 139 | return 0; |
| 140 | } |
| 141 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 142 | static int pxa2xx_ac97_suspend(struct platform_device *dev, pm_message_t state) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 143 | { |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 144 | struct snd_card *card = platform_get_drvdata(dev); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 145 | int ret = 0; |
| 146 | |
Russell King | 9480e30 | 2005-10-28 09:52:56 -0700 | [diff] [blame] | 147 | if (card) |
Dirk Opfer | a55bfdc | 2005-08-08 16:29:43 +0200 | [diff] [blame] | 148 | ret = pxa2xx_ac97_do_suspend(card, PMSG_SUSPEND); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 149 | |
| 150 | return ret; |
| 151 | } |
| 152 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 153 | static int pxa2xx_ac97_resume(struct platform_device *dev) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 154 | { |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 155 | struct snd_card *card = platform_get_drvdata(dev); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 156 | int ret = 0; |
| 157 | |
Russell King | 9480e30 | 2005-10-28 09:52:56 -0700 | [diff] [blame] | 158 | if (card) |
Dirk Opfer | a55bfdc | 2005-08-08 16:29:43 +0200 | [diff] [blame] | 159 | ret = pxa2xx_ac97_do_resume(card); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 160 | |
| 161 | return ret; |
| 162 | } |
| 163 | |
| 164 | #else |
| 165 | #define pxa2xx_ac97_suspend NULL |
| 166 | #define pxa2xx_ac97_resume NULL |
| 167 | #endif |
| 168 | |
Prarit Bhargava | 788c604 | 2007-02-13 13:11:11 +0100 | [diff] [blame] | 169 | static int __devinit pxa2xx_ac97_probe(struct platform_device *dev) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 170 | { |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 171 | struct snd_card *card; |
| 172 | struct snd_ac97_bus *ac97_bus; |
| 173 | struct snd_ac97_template ac97_template; |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 174 | int ret; |
| 175 | |
| 176 | ret = -ENOMEM; |
| 177 | card = snd_card_new(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, |
| 178 | THIS_MODULE, 0); |
| 179 | if (!card) |
| 180 | goto err; |
| 181 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 182 | card->dev = &dev->dev; |
| 183 | strncpy(card->driver, dev->dev.driver->name, sizeof(card->driver)); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 184 | |
| 185 | ret = pxa2xx_pcm_new(card, &pxa2xx_ac97_pcm_client, &pxa2xx_ac97_pcm); |
| 186 | if (ret) |
| 187 | goto err; |
| 188 | |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 189 | ret = pxa2xx_ac97_hw_probe(dev); |
| 190 | if (ret) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 191 | goto err; |
| 192 | |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 193 | ret = snd_ac97_bus(card, 0, &pxa2xx_ac97_ops, NULL, &ac97_bus); |
| 194 | if (ret) |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 195 | goto err_remove; |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 196 | memset(&ac97_template, 0, sizeof(ac97_template)); |
| 197 | ret = snd_ac97_mixer(ac97_bus, &ac97_template, &pxa2xx_ac97_ac97); |
| 198 | if (ret) |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 199 | goto err_remove; |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 200 | |
| 201 | snprintf(card->shortname, sizeof(card->shortname), |
| 202 | "%s", snd_ac97_get_short_name(pxa2xx_ac97_ac97)); |
| 203 | snprintf(card->longname, sizeof(card->longname), |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 204 | "%s (%s)", dev->dev.driver->name, card->mixername); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 205 | |
Takashi Iwai | f78dfac | 2007-12-17 16:24:04 +0100 | [diff] [blame] | 206 | snd_card_set_dev(card, &dev->dev); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 207 | ret = snd_card_register(card); |
| 208 | if (ret == 0) { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 209 | platform_set_drvdata(dev, card); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 210 | return 0; |
| 211 | } |
| 212 | |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 213 | err_remove: |
| 214 | pxa2xx_ac97_hw_remove(dev); |
| 215 | err: |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 216 | if (card) |
| 217 | snd_card_free(card); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 218 | return ret; |
| 219 | } |
| 220 | |
Prarit Bhargava | 788c604 | 2007-02-13 13:11:11 +0100 | [diff] [blame] | 221 | static int __devexit pxa2xx_ac97_remove(struct platform_device *dev) |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 222 | { |
Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 223 | struct snd_card *card = platform_get_drvdata(dev); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 224 | |
| 225 | if (card) { |
| 226 | snd_card_free(card); |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 227 | platform_set_drvdata(dev, NULL); |
Dmitry Baryshkov | 9c63634 | 2008-09-10 05:01:17 +0400 | [diff] [blame] | 228 | pxa2xx_ac97_hw_remove(dev); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 229 | } |
| 230 | |
| 231 | return 0; |
| 232 | } |
| 233 | |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 234 | static struct platform_driver pxa2xx_ac97_driver = { |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 235 | .probe = pxa2xx_ac97_probe, |
Prarit Bhargava | 788c604 | 2007-02-13 13:11:11 +0100 | [diff] [blame] | 236 | .remove = __devexit_p(pxa2xx_ac97_remove), |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 237 | .suspend = pxa2xx_ac97_suspend, |
| 238 | .resume = pxa2xx_ac97_resume, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 239 | .driver = { |
| 240 | .name = "pxa2xx-ac97", |
Kay Sievers | 8b45a20 | 2008-04-14 13:33:36 +0200 | [diff] [blame] | 241 | .owner = THIS_MODULE, |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 242 | }, |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 243 | }; |
| 244 | |
| 245 | static int __init pxa2xx_ac97_init(void) |
| 246 | { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 247 | return platform_driver_register(&pxa2xx_ac97_driver); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 248 | } |
| 249 | |
| 250 | static void __exit pxa2xx_ac97_exit(void) |
| 251 | { |
Russell King | 3ae5eae | 2005-11-09 22:32:44 +0000 | [diff] [blame] | 252 | platform_driver_unregister(&pxa2xx_ac97_driver); |
Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 253 | } |
| 254 | |
| 255 | module_init(pxa2xx_ac97_init); |
| 256 | module_exit(pxa2xx_ac97_exit); |
| 257 | |
| 258 | MODULE_AUTHOR("Nicolas Pitre"); |
| 259 | MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip"); |
| 260 | MODULE_LICENSE("GPL"); |
Kay Sievers | 8b45a20 | 2008-04-14 13:33:36 +0200 | [diff] [blame] | 261 | MODULE_ALIAS("platform:pxa2xx-ac97"); |