arch/arm/mach-s3c64xx/dev-audio.c

   1 /* linux/arch/arm/plat-s3c/dev-audio.c
   2  *
   3  * Copyright 2009 Wolfson Microelectronics
   4  *      Mark Brown <broonie@opensource.wolfsonmicro.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/string.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/dma-mapping.h>
  15 #include <linux/gpio.h>
  16 #include <linux/export.h>
  17
  18 #include <mach/irqs.h>
  19 #include <mach/map.h>
  20 #include <mach/dma.h>
  21
  22 #include <plat/devs.h>
  23 #include <plat/audio.h>
  24 #include <plat/gpio-cfg.h>
  25
  26 static const char *rclksrc[] = {
  27         [0] = "iis",
  28         [1] = "audio-bus",
  29 };
  30
  31 static int s3c64xx_i2s_cfg_gpio(struct platform_device *pdev)
  32 {
  33         unsigned int base;
  34
  35         switch (pdev->id) {
  36         case 0:
  37                 base = S3C64XX_GPD(0);
  38                 break;
  39         case 1:
  40                 base = S3C64XX_GPE(0);
  41                 break;
  42         case 2:
  43                 s3c_gpio_cfgpin(S3C64XX_GPC(4), S3C_GPIO_SFN(5));
  44                 s3c_gpio_cfgpin(S3C64XX_GPC(5), S3C_GPIO_SFN(5));
  45                 s3c_gpio_cfgpin(S3C64XX_GPC(7), S3C_GPIO_SFN(5));
  46                 s3c_gpio_cfgpin_range(S3C64XX_GPH(6), 4, S3C_GPIO_SFN(5));
  47                 return 0;
  48         default:
  49                 printk(KERN_DEBUG "Invalid I2S Controller number: %d\n",
  50                         pdev->id);
  51                 return -EINVAL;
  52         }
  53
  54         s3c_gpio_cfgpin_range(base, 5, S3C_GPIO_SFN(3));
  55
  56         return 0;
  57 }
  58
  59 static struct resource s3c64xx_iis0_resource[] = {
  60         [0] = DEFINE_RES_MEM(S3C64XX_PA_IIS0, SZ_256),
  61         [1] = DEFINE_RES_DMA(DMACH_I2S0_OUT),
  62         [2] = DEFINE_RES_DMA(DMACH_I2S0_IN),
  63 };
  64
  65 static struct s3c_audio_pdata i2sv3_pdata = {
  66         .cfg_gpio = s3c64xx_i2s_cfg_gpio,
  67         .type = {
  68                 .i2s = {
  69                         .src_clk = rclksrc,
  70                 },
  71         },
  72 };
  73
  74 struct platform_device s3c64xx_device_iis0 = {
  75         .name             = "samsung-i2s",
  76         .id               = 0,
  77         .num_resources    = ARRAY_SIZE(s3c64xx_iis0_resource),
  78         .resource         = s3c64xx_iis0_resource,
  79         .dev = {
  80                 .platform_data = &i2sv3_pdata,
  81         },
  82 };
  83 EXPORT_SYMBOL(s3c64xx_device_iis0);
  84
  85 static struct resource s3c64xx_iis1_resource[] = {
  86         [0] = DEFINE_RES_MEM(S3C64XX_PA_IIS1, SZ_256),
  87         [1] = DEFINE_RES_DMA(DMACH_I2S1_OUT),
  88         [2] = DEFINE_RES_DMA(DMACH_I2S1_IN),
  89 };
  90
  91 struct platform_device s3c64xx_device_iis1 = {
  92         .name             = "samsung-i2s",
  93         .id               = 1,
  94         .num_resources    = ARRAY_SIZE(s3c64xx_iis1_resource),
  95         .resource         = s3c64xx_iis1_resource,
  96         .dev = {
  97                 .platform_data = &i2sv3_pdata,
  98         },
  99 };
 100 EXPORT_SYMBOL(s3c64xx_device_iis1);
 101
 102 static struct resource s3c64xx_iisv4_resource[] = {
 103         [0] = DEFINE_RES_MEM(S3C64XX_PA_IISV4, SZ_256),
 104         [1] = DEFINE_RES_DMA(DMACH_HSI_I2SV40_TX),
 105         [2] = DEFINE_RES_DMA(DMACH_HSI_I2SV40_RX),
 106 };
 107
 108 static struct s3c_audio_pdata i2sv4_pdata = {
 109         .cfg_gpio = s3c64xx_i2s_cfg_gpio,
 110         .type = {
 111                 .i2s = {
 112                         .quirks = QUIRK_PRI_6CHAN,
 113                         .src_clk = rclksrc,
 114                 },
 115         },
 116 };
 117
 118 struct platform_device s3c64xx_device_iisv4 = {
 119         .name = "samsung-i2s",
 120         .id = 2,
 121         .num_resources    = ARRAY_SIZE(s3c64xx_iisv4_resource),
 122         .resource         = s3c64xx_iisv4_resource,
 123         .dev = {
 124                 .platform_data = &i2sv4_pdata,
 125         },
 126 };
 127 EXPORT_SYMBOL(s3c64xx_device_iisv4);
 128
 129
 130 /* PCM Controller platform_devices */
 131
 132 static int s3c64xx_pcm_cfg_gpio(struct platform_device *pdev)
 133 {
 134         unsigned int base;
 135
 136         switch (pdev->id) {
 137         case 0:
 138                 base = S3C64XX_GPD(0);
 139                 break;
 140         case 1:
 141                 base = S3C64XX_GPE(0);
 142                 break;
 143         default:
 144                 printk(KERN_DEBUG "Invalid PCM Controller number: %d\n",
 145                         pdev->id);
 146                 return -EINVAL;
 147         }
 148
 149         s3c_gpio_cfgpin_range(base, 5, S3C_GPIO_SFN(2));
 150         return 0;
 151 }
 152
 153 static struct resource s3c64xx_pcm0_resource[] = {
 154         [0] = DEFINE_RES_MEM(S3C64XX_PA_PCM0, SZ_256),
 155         [1] = DEFINE_RES_DMA(DMACH_PCM0_TX),
 156         [2] = DEFINE_RES_DMA(DMACH_PCM0_RX),
 157 };
 158
 159 static struct s3c_audio_pdata s3c_pcm0_pdata = {
 160         .cfg_gpio = s3c64xx_pcm_cfg_gpio,
 161 };
 162
 163 struct platform_device s3c64xx_device_pcm0 = {
 164         .name             = "samsung-pcm",
 165         .id               = 0,
 166         .num_resources    = ARRAY_SIZE(s3c64xx_pcm0_resource),
 167         .resource         = s3c64xx_pcm0_resource,
 168         .dev = {
 169                 .platform_data = &s3c_pcm0_pdata,
 170         },
 171 };
 172 EXPORT_SYMBOL(s3c64xx_device_pcm0);
 173
 174 static struct resource s3c64xx_pcm1_resource[] = {
 175         [0] = DEFINE_RES_MEM(S3C64XX_PA_PCM1, SZ_256),
 176         [1] = DEFINE_RES_DMA(DMACH_PCM1_TX),
 177         [2] = DEFINE_RES_DMA(DMACH_PCM1_RX),
 178 };
 179
 180 static struct s3c_audio_pdata s3c_pcm1_pdata = {
 181         .cfg_gpio = s3c64xx_pcm_cfg_gpio,
 182 };
 183
 184 struct platform_device s3c64xx_device_pcm1 = {
 185         .name             = "samsung-pcm",
 186         .id               = 1,
 187         .num_resources    = ARRAY_SIZE(s3c64xx_pcm1_resource),
 188         .resource         = s3c64xx_pcm1_resource,
 189         .dev = {
 190                 .platform_data = &s3c_pcm1_pdata,
 191         },
 192 };
 193 EXPORT_SYMBOL(s3c64xx_device_pcm1);
 194
 195 /* AC97 Controller platform devices */
 196
 197 static int s3c64xx_ac97_cfg_gpd(struct platform_device *pdev)
 198 {
 199         return s3c_gpio_cfgpin_range(S3C64XX_GPD(0), 5, S3C_GPIO_SFN(4));
 200 }
 201
 202 static int s3c64xx_ac97_cfg_gpe(struct platform_device *pdev)
 203 {
 204         return s3c_gpio_cfgpin_range(S3C64XX_GPE(0), 5, S3C_GPIO_SFN(4));
 205 }
 206
 207 static struct resource s3c64xx_ac97_resource[] = {
 208         [0] = DEFINE_RES_MEM(S3C64XX_PA_AC97, SZ_256),
 209         [1] = DEFINE_RES_DMA(DMACH_AC97_PCMOUT),
 210         [2] = DEFINE_RES_DMA(DMACH_AC97_PCMIN),
 211         [3] = DEFINE_RES_DMA(DMACH_AC97_MICIN),
 212         [4] = DEFINE_RES_IRQ(IRQ_AC97),
 213 };
 214
 215 static struct s3c_audio_pdata s3c_ac97_pdata;
 216
 217 static u64 s3c64xx_ac97_dmamask = DMA_BIT_MASK(32);
 218
 219 struct platform_device s3c64xx_device_ac97 = {
 220         .name             = "samsung-ac97",
 221         .id               = -1,
 222         .num_resources    = ARRAY_SIZE(s3c64xx_ac97_resource),
 223         .resource         = s3c64xx_ac97_resource,
 224         .dev = {
 225                 .platform_data = &s3c_ac97_pdata,
 226                 .dma_mask = &s3c64xx_ac97_dmamask,
 227                 .coherent_dma_mask = DMA_BIT_MASK(32),
 228         },
 229 };
 230 EXPORT_SYMBOL(s3c64xx_device_ac97);
 231
 232 void __init s3c64xx_ac97_setup_gpio(int num)
 233 {
 234         if (num == S3C64XX_AC97_GPD)
 235                 s3c_ac97_pdata.cfg_gpio = s3c64xx_ac97_cfg_gpd;
 236         else
 237                 s3c_ac97_pdata.cfg_gpio = s3c64xx_ac97_cfg_gpe;
 238 }