linux-sg2042/arch/arm/mach-s5p6442/dev-audio.c

218 lines
4.2 KiB
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,
},
};