Logo Search packages:      
Sourcecode: linux version File versions  Download package

dev-audio.c

/* linux/arch/arm/plat-s3c/dev-audio.c
 *
 * Copyright 2009 Wolfson Microelectronics
 *      Mark Brown <broonie@opensource.wolfsonmicro.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/gpio.h>

#include <mach/irqs.h>
#include <mach/map.h>
#include <mach/dma.h>

#include <plat/devs.h>
#include <plat/audio.h>
#include <plat/gpio-cfg.h>

static const char *rclksrc[] = {
      [0] = "iis",
      [1] = "audio-bus",
};

static int s3c64xx_i2s_cfg_gpio(struct platform_device *pdev)
{
      unsigned int base;

      switch (pdev->id) {
      case 0:
            base = S3C64XX_GPD(0);
            break;
      case 1:
            base = S3C64XX_GPE(0);
            break;
      case 2:
            s3c_gpio_cfgpin(S3C64XX_GPC(4), S3C_GPIO_SFN(5));
            s3c_gpio_cfgpin(S3C64XX_GPC(5), S3C_GPIO_SFN(5));
            s3c_gpio_cfgpin(S3C64XX_GPC(7), S3C_GPIO_SFN(5));
            s3c_gpio_cfgpin_range(S3C64XX_GPH(6), 4, S3C_GPIO_SFN(5));
            return 0;
      default:
            printk(KERN_DEBUG "Invalid I2S Controller number: %d\n",
                  pdev->id);
            return -EINVAL;
      }

      s3c_gpio_cfgpin_range(base, 5, S3C_GPIO_SFN(3));

      return 0;
}

static struct resource s3c64xx_iis0_resource[] = {
      [0] = {
            .start = S3C64XX_PA_IIS0,
            .end   = S3C64XX_PA_IIS0 + 0x100 - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = DMACH_I2S0_OUT,
            .end   = DMACH_I2S0_OUT,
            .flags = IORESOURCE_DMA,
      },
      [2] = {
            .start = DMACH_I2S0_IN,
            .end   = DMACH_I2S0_IN,
            .flags = IORESOURCE_DMA,
      },
};

static struct s3c_audio_pdata i2sv3_pdata = {
      .cfg_gpio = s3c64xx_i2s_cfg_gpio,
      .type = {
            .i2s = {
                  .src_clk = rclksrc,
            },
      },
};

struct platform_device s3c64xx_device_iis0 = {
      .name         = "samsung-i2s",
      .id           = 0,
      .num_resources      = ARRAY_SIZE(s3c64xx_iis0_resource),
      .resource     = s3c64xx_iis0_resource,
      .dev = {
            .platform_data = &i2sv3_pdata,
      },
};
EXPORT_SYMBOL(s3c64xx_device_iis0);

static struct resource s3c64xx_iis1_resource[] = {
      [0] = {
            .start = S3C64XX_PA_IIS1,
            .end   = S3C64XX_PA_IIS1 + 0x100 - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = DMACH_I2S1_OUT,
            .end   = DMACH_I2S1_OUT,
            .flags = IORESOURCE_DMA,
      },
      [2] = {
            .start = DMACH_I2S1_IN,
            .end   = DMACH_I2S1_IN,
            .flags = IORESOURCE_DMA,
      },
};

struct platform_device s3c64xx_device_iis1 = {
      .name         = "samsung-i2s",
      .id           = 1,
      .num_resources      = ARRAY_SIZE(s3c64xx_iis1_resource),
      .resource     = s3c64xx_iis1_resource,
      .dev = {
            .platform_data = &i2sv3_pdata,
      },
};
EXPORT_SYMBOL(s3c64xx_device_iis1);

static struct resource s3c64xx_iisv4_resource[] = {
      [0] = {
            .start = S3C64XX_PA_IISV4,
            .end   = S3C64XX_PA_IISV4 + 0x100 - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = DMACH_HSI_I2SV40_TX,
            .end   = DMACH_HSI_I2SV40_TX,
            .flags = IORESOURCE_DMA,
      },
      [2] = {
            .start = DMACH_HSI_I2SV40_RX,
            .end   = DMACH_HSI_I2SV40_RX,
            .flags = IORESOURCE_DMA,
      },
};

static struct s3c_audio_pdata i2sv4_pdata = {
      .cfg_gpio = s3c64xx_i2s_cfg_gpio,
      .type = {
            .i2s = {
                  .quirks = QUIRK_PRI_6CHAN,
                  .src_clk = rclksrc,
            },
      },
};

struct platform_device s3c64xx_device_iisv4 = {
      .name = "samsung-i2s",
      .id = 2,
      .num_resources      = ARRAY_SIZE(s3c64xx_iisv4_resource),
      .resource     = s3c64xx_iisv4_resource,
      .dev = {
            .platform_data = &i2sv4_pdata,
      },
};
EXPORT_SYMBOL(s3c64xx_device_iisv4);


/* PCM Controller platform_devices */

static int s3c64xx_pcm_cfg_gpio(struct platform_device *pdev)
{
      unsigned int base;

      switch (pdev->id) {
      case 0:
            base = S3C64XX_GPD(0);
            break;
      case 1:
            base = S3C64XX_GPE(0);
            break;
      default:
            printk(KERN_DEBUG "Invalid PCM Controller number: %d\n",
                  pdev->id);
            return -EINVAL;
      }

      s3c_gpio_cfgpin_range(base, 5, S3C_GPIO_SFN(2));
      return 0;
}

static struct resource s3c64xx_pcm0_resource[] = {
      [0] = {
            .start = S3C64XX_PA_PCM0,
            .end   = S3C64XX_PA_PCM0 + 0x100 - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = DMACH_PCM0_TX,
            .end   = DMACH_PCM0_TX,
            .flags = IORESOURCE_DMA,
      },
      [2] = {
            .start = DMACH_PCM0_RX,
            .end   = DMACH_PCM0_RX,
            .flags = IORESOURCE_DMA,
      },
};

static struct s3c_audio_pdata s3c_pcm0_pdata = {
      .cfg_gpio = s3c64xx_pcm_cfg_gpio,
};

struct platform_device s3c64xx_device_pcm0 = {
      .name         = "samsung-pcm",
      .id           = 0,
      .num_resources      = ARRAY_SIZE(s3c64xx_pcm0_resource),
      .resource     = s3c64xx_pcm0_resource,
      .dev = {
            .platform_data = &s3c_pcm0_pdata,
      },
};
EXPORT_SYMBOL(s3c64xx_device_pcm0);

static struct resource s3c64xx_pcm1_resource[] = {
      [0] = {
            .start = S3C64XX_PA_PCM1,
            .end   = S3C64XX_PA_PCM1 + 0x100 - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = DMACH_PCM1_TX,
            .end   = DMACH_PCM1_TX,
            .flags = IORESOURCE_DMA,
      },
      [2] = {
            .start = DMACH_PCM1_RX,
            .end   = DMACH_PCM1_RX,
            .flags = IORESOURCE_DMA,
      },
};

static struct s3c_audio_pdata s3c_pcm1_pdata = {
      .cfg_gpio = s3c64xx_pcm_cfg_gpio,
};

struct platform_device s3c64xx_device_pcm1 = {
      .name         = "samsung-pcm",
      .id           = 1,
      .num_resources      = ARRAY_SIZE(s3c64xx_pcm1_resource),
      .resource     = s3c64xx_pcm1_resource,
      .dev = {
            .platform_data = &s3c_pcm1_pdata,
      },
};
EXPORT_SYMBOL(s3c64xx_device_pcm1);

/* AC97 Controller platform devices */

static int s3c64xx_ac97_cfg_gpd(struct platform_device *pdev)
{
      return s3c_gpio_cfgpin_range(S3C64XX_GPD(0), 5, S3C_GPIO_SFN(4));
}

static int s3c64xx_ac97_cfg_gpe(struct platform_device *pdev)
{
      return s3c_gpio_cfgpin_range(S3C64XX_GPE(0), 5, S3C_GPIO_SFN(4));
}

static struct resource s3c64xx_ac97_resource[] = {
      [0] = {
            .start = S3C64XX_PA_AC97,
            .end   = S3C64XX_PA_AC97 + 0x100 - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = DMACH_AC97_PCMOUT,
            .end   = DMACH_AC97_PCMOUT,
            .flags = IORESOURCE_DMA,
      },
      [2] = {
            .start = DMACH_AC97_PCMIN,
            .end   = DMACH_AC97_PCMIN,
            .flags = IORESOURCE_DMA,
      },
      [3] = {
            .start = DMACH_AC97_MICIN,
            .end   = DMACH_AC97_MICIN,
            .flags = IORESOURCE_DMA,
      },
      [4] = {
            .start = IRQ_AC97,
            .end   = IRQ_AC97,
            .flags = IORESOURCE_IRQ,
      },
};

static struct s3c_audio_pdata s3c_ac97_pdata;

static u64 s3c64xx_ac97_dmamask = DMA_BIT_MASK(32);

struct platform_device s3c64xx_device_ac97 = {
      .name         = "samsung-ac97",
      .id           = -1,
      .num_resources      = ARRAY_SIZE(s3c64xx_ac97_resource),
      .resource     = s3c64xx_ac97_resource,
      .dev = {
            .platform_data = &s3c_ac97_pdata,
            .dma_mask = &s3c64xx_ac97_dmamask,
            .coherent_dma_mask = DMA_BIT_MASK(32),
      },
};
EXPORT_SYMBOL(s3c64xx_device_ac97);

void __init s3c64xx_ac97_setup_gpio(int num)
{
      if (num == S3C64XX_AC97_GPD)
            s3c_ac97_pdata.cfg_gpio = s3c64xx_ac97_cfg_gpd;
      else
            s3c_ac97_pdata.cfg_gpio = s3c64xx_ac97_cfg_gpe;
}

Generated by  Doxygen 1.6.0   Back to index