projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 4451582f MLC |
1 | /* |
| 2 | * sdp3430.c -- SoC audio for TI OMAP3430 SDP | |
| 3 | * | |
| 4 | * Author: Misael Lopez Cruz <x0052729@ti.com> | |
| 5 | * | |
| 6 | * Based on: | |
| 7 | * Author: Steve Sakoman <steve@sakoman.com> | |
| 8 | * | |
| 9 | * This program is free software; you can redistribute it and/or | |
| 10 | * modify it under the terms of the GNU General Public License | |
| 11 | * version 2 as published by the Free Software Foundation. | |
| 12 | * | |
| 13 | * This program is distributed in the hope that it will be useful, but | |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 16 | * General Public License for more details. | |
| 17 | * | |
| 18 | * You should have received a copy of the GNU General Public License | |
| 19 | * along with this program; if not, write to the Free Software | |
| 20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
| 21 | * 02110-1301 USA | |
| 22 | * | |
| 23 | */ | |
| 24 | ||
| 25 | #include <linux/clk.h> | |
| 26 | #include <linux/platform_device.h> | |
| 27 | #include <sound/core.h> | |
| 28 | #include <sound/pcm.h> | |
| 29 | #include <sound/soc.h> | |
| 30 | #include <sound/soc-dapm.h> | |
| 31 | ||
| 32 | #include <asm/mach-types.h> | |
| 33 | #include <mach/hardware.h> | |
| 34 | #include <mach/gpio.h> | |
| 35 | #include <mach/mcbsp.h> | |
| 36 | ||
| 37 | #include "omap-mcbsp.h" | |
| 38 | #include "omap-pcm.h" | |
| 39 | #include "../codecs/twl4030.h" | |
| 40 | ||
| 41 | static int sdp3430_hw_params(struct snd_pcm_substream *substream, | |
| 42 | struct snd_pcm_hw_params *params) | |
| 43 | { | |
| 44 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
| 45 | struct snd_soc_dai *codec_dai = rtd->dai->codec_dai; | |
| 46 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; | |
| 47 | int ret; | |
| 48 | ||
| 49 | /* Set codec DAI configuration */ | |
| 50 | ret = snd_soc_dai_set_fmt(codec_dai, | |
| 51 | SND_SOC_DAIFMT_I2S | | |
| 52 | SND_SOC_DAIFMT_NB_NF | | |
| 53 | SND_SOC_DAIFMT_CBM_CFM); | |
| 54 | if (ret < 0) { | |
| 55 | printk(KERN_ERR "can't set codec DAI configuration\n"); | |
| 56 | return ret; | |
| 57 | } | |
| 58 | ||
| 59 | /* Set cpu DAI configuration */ | |
| 60 | ret = snd_soc_dai_set_fmt(cpu_dai, | |
| 61 | SND_SOC_DAIFMT_I2S | | |
| 62 | SND_SOC_DAIFMT_NB_NF | | |
| 63 | SND_SOC_DAIFMT_CBM_CFM); | |
| 64 | if (ret < 0) { | |
| 65 | printk(KERN_ERR "can't set cpu DAI configuration\n"); | |
| 66 | return ret; | |
| 67 | } | |
| 68 | ||
| 69 | /* Set the codec system clock for DAC and ADC */ | |
| 70 | ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000, | |
| 71 | SND_SOC_CLOCK_IN); | |
| 72 | if (ret < 0) { | |
| 73 | printk(KERN_ERR "can't set codec system clock\n"); | |
| 74 | return ret; | |
| 75 | } | |
| 76 | ||
| 77 | return 0; | |
| 78 | } | |
| 79 | ||
| 80 | static struct snd_soc_ops sdp3430_ops = { | |
| 81 | .hw_params = sdp3430_hw_params, | |
| 82 | }; | |
| 83 | ||
| 84 | /* Digital audio interface glue - connects codec <--> CPU */ | |
| 85 | static struct snd_soc_dai_link sdp3430_dai = { | |
| 86 | .name = "TWL4030", | |
| 87 | .stream_name = "TWL4030", | |
| 88 | .cpu_dai = &omap_mcbsp_dai[0], | |
| 89 | .codec_dai = &twl4030_dai, | |
| 90 | .ops = &sdp3430_ops, | |
| 91 | }; | |
| 92 | ||
| 93 | /* Audio machine driver */ | |
| 272edb00 | 94 | static struct snd_soc_card snd_soc_sdp3430 = { |
| 4451582f | 95 | .name = "SDP3430", |
| 87689d56 | 96 | .platform = &omap_soc_platform, |
| 4451582f MLC |
97 | .dai_link = &sdp3430_dai, |
| 98 | .num_links = 1, | |
| 99 | }; | |
| 100 | ||
| 101 | /* Audio subsystem */ | |
| 102 | static struct snd_soc_device sdp3430_snd_devdata = { | |
| 272edb00 | 103 | .card = &snd_soc_sdp3430, |
| 4451582f MLC |
104 | .codec_dev = &soc_codec_dev_twl4030, |
| 105 | }; | |
| 106 | ||
| 107 | static struct platform_device *sdp3430_snd_device; | |
| 108 | ||
| 109 | static int __init sdp3430_soc_init(void) | |
| 110 | { | |
| 111 | int ret; | |
| 112 | ||
| 113 | if (!machine_is_omap_3430sdp()) { | |
| 114 | pr_debug("Not SDP3430!\n"); | |
| 115 | return -ENODEV; | |
| 116 | } | |
| 117 | printk(KERN_INFO "SDP3430 SoC init\n"); | |
| 118 | ||
| 119 | sdp3430_snd_device = platform_device_alloc("soc-audio", -1); | |
| 120 | if (!sdp3430_snd_device) { | |
| 121 | printk(KERN_ERR "Platform device allocation failed\n"); | |
| 122 | return -ENOMEM; | |
| 123 | } | |
| 124 | ||
| 125 | platform_set_drvdata(sdp3430_snd_device, &sdp3430_snd_devdata); | |
| 126 | sdp3430_snd_devdata.dev = &sdp3430_snd_device->dev; | |
| 127 | *(unsigned int *)sdp3430_dai.cpu_dai->private_data = 1; /* McBSP2 */ | |
| 128 | ||
| 129 | ret = platform_device_add(sdp3430_snd_device); | |
| 130 | if (ret) | |
| 131 | goto err1; | |
| 132 | ||
| 133 | return 0; | |
| 134 | ||
| 135 | err1: | |
| 136 | printk(KERN_ERR "Unable to add platform device\n"); | |
| 137 | platform_device_put(sdp3430_snd_device); | |
| 138 | ||
| 139 | return ret; | |
| 140 | } | |
| 141 | module_init(sdp3430_soc_init); | |
| 142 | ||
| 143 | static void __exit sdp3430_soc_exit(void) | |
| 144 | { | |
| 145 | platform_device_unregister(sdp3430_snd_device); | |
| 146 | } | |
| 147 | module_exit(sdp3430_soc_exit); | |
| 148 | ||
| 149 | MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>"); | |
| 150 | MODULE_DESCRIPTION("ALSA SoC SDP3430"); | |
| 151 | MODULE_LICENSE("GPL"); | |
| 152 |