Linux Kernel iMX6
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/* 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 <linux/export.h>
#include <mach/irqs.h>
#include <mach/map.h>
#include <mach/dma.h>
#include <plat/devs.h>
#include <linux/platform_data/asoc-s3c.h>
#include <plat/gpio-cfg.h>
#include <mach/gpio-samsung.h>
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] = DEFINE_RES_MEM(S3C64XX_PA_IIS0, SZ_256),
[1] = DEFINE_RES_DMA(DMACH_I2S0_OUT),
[2] = DEFINE_RES_DMA(DMACH_I2S0_IN),
};
static struct s3c_audio_pdata i2sv3_pdata = {
.cfg_gpio = s3c64xx_i2s_cfg_gpio,
};
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] = DEFINE_RES_MEM(S3C64XX_PA_IIS1, SZ_256),
[1] = DEFINE_RES_DMA(DMACH_I2S1_OUT),
[2] = DEFINE_RES_DMA(DMACH_I2S1_IN),
};
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] = DEFINE_RES_MEM(S3C64XX_PA_IISV4, SZ_256),
[1] = DEFINE_RES_DMA(DMACH_HSI_I2SV40_TX),
[2] = DEFINE_RES_DMA(DMACH_HSI_I2SV40_RX),
};
static struct s3c_audio_pdata i2sv4_pdata = {
.cfg_gpio = s3c64xx_i2s_cfg_gpio,
.type = {
.i2s = {
.quirks = QUIRK_PRI_6CHAN,
},
},
};
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] = DEFINE_RES_MEM(S3C64XX_PA_PCM0, SZ_256),
[1] = DEFINE_RES_DMA(DMACH_PCM0_TX),
[2] = DEFINE_RES_DMA(DMACH_PCM0_RX),
};
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] = DEFINE_RES_MEM(S3C64XX_PA_PCM1, SZ_256),
[1] = DEFINE_RES_DMA(DMACH_PCM1_TX),
[2] = DEFINE_RES_DMA(DMACH_PCM1_RX),
};
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] = DEFINE_RES_MEM(S3C64XX_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;
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;
}