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dev-audio.c

/* linux/arch/arm/mach-s5p6442/dev-audio.c
 *
 * Copyright (c) 2010 Samsung Electronics Co. Ltd
 *    Jaswinder Singh <jassi.brar@samsung.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/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/gpio.h>

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

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

static int s5p6442_cfg_i2s(struct platform_device *pdev)
{
      unsigned int base;

      /* configure GPIO for i2s port */
      switch (pdev->id) {
      case 1:
            base = S5P6442_GPC1(0);
            break;

      case 0:
            base = S5P6442_GPC0(0);
            break;

      default:
            printk(KERN_ERR "Invalid Device %d\n", pdev->id);
            return -EINVAL;
      }

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

static const char *rclksrc_v35[] = {
      [0] = "busclk",
      [1] = "i2sclk",
};

static struct s3c_audio_pdata i2sv35_pdata = {
      .cfg_gpio = s5p6442_cfg_i2s,
      .type = {
            .i2s = {
                  .quirks = QUIRK_SEC_DAI | QUIRK_NEED_RSTCLR,
                  .src_clk = rclksrc_v35,
            },
      },
};

static struct resource s5p6442_iis0_resource[] = {
      [0] = {
            .start = S5P6442_PA_I2S0,
            .end   = S5P6442_PA_I2S0 + 0x100 - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = DMACH_I2S0_TX,
            .end   = DMACH_I2S0_TX,
            .flags = IORESOURCE_DMA,
      },
      [2] = {
            .start = DMACH_I2S0_RX,
            .end   = DMACH_I2S0_RX,
            .flags = IORESOURCE_DMA,
      },
      [3] = {
            .start = DMACH_I2S0S_TX,
            .end = DMACH_I2S0S_TX,
            .flags = IORESOURCE_DMA,
      },
};

struct platform_device s5p6442_device_iis0 = {
      .name = "samsung-i2s",
      .id = 0,
      .num_resources      = ARRAY_SIZE(s5p6442_iis0_resource),
      .resource     = s5p6442_iis0_resource,
      .dev = {
            .platform_data = &i2sv35_pdata,
      },
};

static const char *rclksrc_v3[] = {
      [0] = "iis",
      [1] = "sclk_audio",
};

static struct s3c_audio_pdata i2sv3_pdata = {
      .cfg_gpio = s5p6442_cfg_i2s,
      .type = {
            .i2s = {
                  .src_clk = rclksrc_v3,
            },
      },
};

static struct resource s5p6442_iis1_resource[] = {
      [0] = {
            .start = S5P6442_PA_I2S1,
            .end   = S5P6442_PA_I2S1 + 0x100 - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = DMACH_I2S1_TX,
            .end   = DMACH_I2S1_TX,
            .flags = IORESOURCE_DMA,
      },
      [2] = {
            .start = DMACH_I2S1_RX,
            .end   = DMACH_I2S1_RX,
            .flags = IORESOURCE_DMA,
      },
};

struct platform_device s5p6442_device_iis1 = {
      .name         = "samsung-i2s",
      .id           = 1,
      .num_resources      = ARRAY_SIZE(s5p6442_iis1_resource),
      .resource     = s5p6442_iis1_resource,
      .dev = {
            .platform_data = &i2sv3_pdata,
      },
};

/* PCM Controller platform_devices */

static int s5p6442_pcm_cfg_gpio(struct platform_device *pdev)
{
      unsigned int base;

      switch (pdev->id) {
      case 0:
            base = S5P6442_GPC0(0);
            break;

      case 1:
            base = S5P6442_GPC1(0);
            break;

      default:
            printk(KERN_DEBUG "Invalid PCM Controller number!");
            return -EINVAL;
      }

      s3c_gpio_cfgpin_range(base, 5, S3C_GPIO_SFN(3));
      return 0;
}

static struct s3c_audio_pdata s3c_pcm_pdata = {
      .cfg_gpio = s5p6442_pcm_cfg_gpio,
};

static struct resource s5p6442_pcm0_resource[] = {
      [0] = {
            .start = S5P6442_PA_PCM0,
            .end   = S5P6442_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,
      },
};

struct platform_device s5p6442_device_pcm0 = {
      .name         = "samsung-pcm",
      .id           = 0,
      .num_resources      = ARRAY_SIZE(s5p6442_pcm0_resource),
      .resource     = s5p6442_pcm0_resource,
      .dev = {
            .platform_data = &s3c_pcm_pdata,
      },
};

static struct resource s5p6442_pcm1_resource[] = {
      [0] = {
            .start = S5P6442_PA_PCM1,
            .end   = S5P6442_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,
      },
};

struct platform_device s5p6442_device_pcm1 = {
      .name         = "samsung-pcm",
      .id           = 1,
      .num_resources      = ARRAY_SIZE(s5p6442_pcm1_resource),
      .resource     = s5p6442_pcm1_resource,
      .dev = {
            .platform_data = &s3c_pcm_pdata,
      },
};

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