dev-audio.c

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/* linux/arch/arm/mach-s5pc100/dev-audio.c
 *
 * Copyright (c) 2010 Samsung Electronics Co. Ltd
 *  Jaswinder Singh <[email protected]>
 *
 * 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 <linux/platform_data/asoc-s3c.h>

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

static int s5pc100_cfg_i2s(struct platform_device *pdev)
{
    /* configure GPIO for i2s port */
    switch (pdev->id) {
    case 0: /* Dedicated pins */
        break;
    case 1:
        s3c_gpio_cfgpin_range(S5PC100_GPC(0), 5, S3C_GPIO_SFN(2));
        break;
    case 2:
        s3c_gpio_cfgpin_range(S5PC100_GPG3(0), 5, S3C_GPIO_SFN(4));
        break;
    default:
        printk(KERN_ERR "Invalid Device %d\n", pdev->id);
        return -EINVAL;
    }

    return 0;
}

static const char *rclksrc_v5[] = {
    [0] = "iis",
    [1] = "i2sclkd2",
};

static struct s3c_audio_pdata i2sv5_pdata = {
    .cfg_gpio = s5pc100_cfg_i2s,
    .type = {
        .i2s = {
            .quirks = QUIRK_PRI_6CHAN | QUIRK_SEC_DAI
                     | QUIRK_NEED_RSTCLR,
            .src_clk = rclksrc_v5,
        },
    },
};

static struct resource s5pc100_iis0_resource[] = {
    [0] = DEFINE_RES_MEM(S5PC100_PA_I2S0, SZ_256),
    [1] = DEFINE_RES_DMA(DMACH_I2S0_TX),
    [2] = DEFINE_RES_DMA(DMACH_I2S0_RX),
    [3] = DEFINE_RES_DMA(DMACH_I2S0S_TX),
};

struct platform_device s5pc100_device_iis0 = {
    .name = "samsung-i2s",
    .id = 0,
    .num_resources    = ARRAY_SIZE(s5pc100_iis0_resource),
    .resource     = s5pc100_iis0_resource,
    .dev = {
        .platform_data = &i2sv5_pdata,
    },
};

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

static struct s3c_audio_pdata i2sv3_pdata = {
    .cfg_gpio = s5pc100_cfg_i2s,
    .type = {
        .i2s = {
            .src_clk = rclksrc_v3,
        },
    },
};

static struct resource s5pc100_iis1_resource[] = {
    [0] = DEFINE_RES_MEM(S5PC100_PA_I2S1, SZ_256),
    [1] = DEFINE_RES_DMA(DMACH_I2S1_TX),
    [2] = DEFINE_RES_DMA(DMACH_I2S1_RX),
};

struct platform_device s5pc100_device_iis1 = {
    .name         = "samsung-i2s",
    .id       = 1,
    .num_resources    = ARRAY_SIZE(s5pc100_iis1_resource),
    .resource     = s5pc100_iis1_resource,
    .dev = {
        .platform_data = &i2sv3_pdata,
    },
};

static struct resource s5pc100_iis2_resource[] = {
    [0] = DEFINE_RES_MEM(S5PC100_PA_I2S2, SZ_256),
    [1] = DEFINE_RES_DMA(DMACH_I2S2_TX),
    [2] = DEFINE_RES_DMA(DMACH_I2S2_RX),
};

struct platform_device s5pc100_device_iis2 = {
    .name         = "samsung-i2s",
    .id       = 2,
    .num_resources    = ARRAY_SIZE(s5pc100_iis2_resource),
    .resource     = s5pc100_iis2_resource,
    .dev = {
        .platform_data = &i2sv3_pdata,
    },
};

/* PCM Controller platform_devices */

static int s5pc100_pcm_cfg_gpio(struct platform_device *pdev)
{
    switch (pdev->id) {
    case 0:
        s3c_gpio_cfgpin_range(S5PC100_GPG3(0), 5, S3C_GPIO_SFN(5));
        break;

    case 1:
        s3c_gpio_cfgpin_range(S5PC100_GPC(0), 5, S3C_GPIO_SFN(3));
        break;

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

    return 0;
}

static struct s3c_audio_pdata s3c_pcm_pdata = {
    .cfg_gpio = s5pc100_pcm_cfg_gpio,
};

static struct resource s5pc100_pcm0_resource[] = {
    [0] = DEFINE_RES_MEM(S5PC100_PA_PCM0, SZ_256),
    [1] = DEFINE_RES_DMA(DMACH_PCM0_TX),
    [2] = DEFINE_RES_DMA(DMACH_PCM0_RX),
};

struct platform_device s5pc100_device_pcm0 = {
    .name         = "samsung-pcm",
    .id       = 0,
    .num_resources    = ARRAY_SIZE(s5pc100_pcm0_resource),
    .resource     = s5pc100_pcm0_resource,
    .dev = {
        .platform_data = &s3c_pcm_pdata,
    },
};

static struct resource s5pc100_pcm1_resource[] = {
    [0] = DEFINE_RES_MEM(S5PC100_PA_PCM1, SZ_256),
    [1] = DEFINE_RES_DMA(DMACH_PCM1_TX),
    [2] = DEFINE_RES_DMA(DMACH_PCM1_RX),
};

struct platform_device s5pc100_device_pcm1 = {
    .name         = "samsung-pcm",
    .id       = 1,
    .num_resources    = ARRAY_SIZE(s5pc100_pcm1_resource),
    .resource     = s5pc100_pcm1_resource,
    .dev = {
        .platform_data = &s3c_pcm_pdata,
    },
};

/* AC97 Controller platform devices */

static int s5pc100_ac97_cfg_gpio(struct platform_device *pdev)
{
    return s3c_gpio_cfgpin_range(S5PC100_GPC(0), 5, S3C_GPIO_SFN(4));
}

static struct resource s5pc100_ac97_resource[] = {
    [0] = DEFINE_RES_MEM(S5PC100_PA_AC97, SZ_256),
    [1] = DEFINE_RES_DMA(DMACH_AC97_PCMOUT),
    [2] = DEFINE_RES_DMA(DMACH_AC97_PCMIN),
    [3] = DEFINE_RES_DMA(DMACH_AC97_MICIN),
    [4] = DEFINE_RES_IRQ(IRQ_AC97),
};

static struct s3c_audio_pdata s3c_ac97_pdata = {
    .cfg_gpio = s5pc100_ac97_cfg_gpio,
};

static u64 s5pc100_ac97_dmamask = DMA_BIT_MASK(32);

struct platform_device s5pc100_device_ac97 = {
    .name         = "samsung-ac97",
    .id       = -1,
    .num_resources    = ARRAY_SIZE(s5pc100_ac97_resource),
    .resource     = s5pc100_ac97_resource,
    .dev = {
        .platform_data = &s3c_ac97_pdata,
        .dma_mask = &s5pc100_ac97_dmamask,
        .coherent_dma_mask = DMA_BIT_MASK(32),
    },
};

/* S/PDIF Controller platform_device */
static int s5pc100_spdif_cfg_gpd(struct platform_device *pdev)
{
    s3c_gpio_cfgpin_range(S5PC100_GPD(5), 2, S3C_GPIO_SFN(3));

    return 0;
}

static int s5pc100_spdif_cfg_gpg3(struct platform_device *pdev)
{
    s3c_gpio_cfgpin_range(S5PC100_GPG3(5), 2, S3C_GPIO_SFN(3));

    return 0;
}

static struct resource s5pc100_spdif_resource[] = {
    [0] = DEFINE_RES_MEM(S5PC100_PA_SPDIF, SZ_256),
    [1] = DEFINE_RES_DMA(DMACH_SPDIF),
};

static struct s3c_audio_pdata s5p_spdif_pdata = {
    .cfg_gpio = s5pc100_spdif_cfg_gpd,
};

static u64 s5pc100_spdif_dmamask = DMA_BIT_MASK(32);

struct platform_device s5pc100_device_spdif = {
    .name       = "samsung-spdif",
    .id     = -1,
    .num_resources  = ARRAY_SIZE(s5pc100_spdif_resource),
    .resource   = s5pc100_spdif_resource,
    .dev = {
        .platform_data = &s5p_spdif_pdata,
        .dma_mask = &s5pc100_spdif_dmamask,
        .coherent_dma_mask = DMA_BIT_MASK(32),
    },
};

void __init s5pc100_spdif_setup_gpio(int gpio)
{
    if (gpio == S5PC100_SPDIF_GPD)
        s5p_spdif_pdata.cfg_gpio = s5pc100_spdif_cfg_gpd;
    else
        s5p_spdif_pdata.cfg_gpio = s5pc100_spdif_cfg_gpg3;
}