319 lines
6.6 KiB
C
319 lines
6.6 KiB
C
/* linux/arch/arm/plat-s3c/dev-audio.c
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*
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* Copyright 2009 Wolfson Microelectronics
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* Mark Brown <broonie@opensource.wolfsonmicro.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/platform_device.h>
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#include <linux/dma-mapping.h>
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#include <linux/gpio.h>
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#include <linux/export.h>
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#include <mach/irqs.h>
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#include <mach/map.h>
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#include <mach/dma.h>
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#include <plat/devs.h>
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#include <plat/audio.h>
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#include <plat/gpio-cfg.h>
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static const char *rclksrc[] = {
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[0] = "iis",
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[1] = "audio-bus",
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};
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static int s3c64xx_i2s_cfg_gpio(struct platform_device *pdev)
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{
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unsigned int base;
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switch (pdev->id) {
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case 0:
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base = S3C64XX_GPD(0);
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break;
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case 1:
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base = S3C64XX_GPE(0);
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break;
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case 2:
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s3c_gpio_cfgpin(S3C64XX_GPC(4), S3C_GPIO_SFN(5));
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s3c_gpio_cfgpin(S3C64XX_GPC(5), S3C_GPIO_SFN(5));
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s3c_gpio_cfgpin(S3C64XX_GPC(7), S3C_GPIO_SFN(5));
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s3c_gpio_cfgpin_range(S3C64XX_GPH(6), 4, S3C_GPIO_SFN(5));
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return 0;
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default:
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printk(KERN_DEBUG "Invalid I2S Controller number: %d\n",
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pdev->id);
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return -EINVAL;
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}
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s3c_gpio_cfgpin_range(base, 5, S3C_GPIO_SFN(3));
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return 0;
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}
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static struct resource s3c64xx_iis0_resource[] = {
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[0] = {
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.start = S3C64XX_PA_IIS0,
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.end = S3C64XX_PA_IIS0 + 0x100 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = DMACH_I2S0_OUT,
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.end = DMACH_I2S0_OUT,
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.flags = IORESOURCE_DMA,
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},
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[2] = {
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.start = DMACH_I2S0_IN,
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.end = DMACH_I2S0_IN,
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.flags = IORESOURCE_DMA,
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},
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};
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static struct s3c_audio_pdata i2sv3_pdata = {
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.cfg_gpio = s3c64xx_i2s_cfg_gpio,
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.type = {
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.i2s = {
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.src_clk = rclksrc,
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},
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},
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};
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struct platform_device s3c64xx_device_iis0 = {
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.name = "samsung-i2s",
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.id = 0,
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.num_resources = ARRAY_SIZE(s3c64xx_iis0_resource),
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.resource = s3c64xx_iis0_resource,
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.dev = {
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.platform_data = &i2sv3_pdata,
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},
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};
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EXPORT_SYMBOL(s3c64xx_device_iis0);
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static struct resource s3c64xx_iis1_resource[] = {
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[0] = {
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.start = S3C64XX_PA_IIS1,
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.end = S3C64XX_PA_IIS1 + 0x100 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = DMACH_I2S1_OUT,
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.end = DMACH_I2S1_OUT,
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.flags = IORESOURCE_DMA,
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},
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[2] = {
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.start = DMACH_I2S1_IN,
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.end = DMACH_I2S1_IN,
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.flags = IORESOURCE_DMA,
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},
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};
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struct platform_device s3c64xx_device_iis1 = {
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.name = "samsung-i2s",
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.id = 1,
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.num_resources = ARRAY_SIZE(s3c64xx_iis1_resource),
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.resource = s3c64xx_iis1_resource,
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.dev = {
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.platform_data = &i2sv3_pdata,
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},
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};
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EXPORT_SYMBOL(s3c64xx_device_iis1);
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static struct resource s3c64xx_iisv4_resource[] = {
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[0] = {
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.start = S3C64XX_PA_IISV4,
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.end = S3C64XX_PA_IISV4 + 0x100 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = DMACH_HSI_I2SV40_TX,
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.end = DMACH_HSI_I2SV40_TX,
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.flags = IORESOURCE_DMA,
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},
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[2] = {
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.start = DMACH_HSI_I2SV40_RX,
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.end = DMACH_HSI_I2SV40_RX,
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.flags = IORESOURCE_DMA,
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},
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};
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static struct s3c_audio_pdata i2sv4_pdata = {
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.cfg_gpio = s3c64xx_i2s_cfg_gpio,
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.type = {
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.i2s = {
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.quirks = QUIRK_PRI_6CHAN,
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.src_clk = rclksrc,
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},
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},
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};
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struct platform_device s3c64xx_device_iisv4 = {
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.name = "samsung-i2s",
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.id = 2,
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.num_resources = ARRAY_SIZE(s3c64xx_iisv4_resource),
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.resource = s3c64xx_iisv4_resource,
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.dev = {
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.platform_data = &i2sv4_pdata,
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},
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};
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EXPORT_SYMBOL(s3c64xx_device_iisv4);
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/* PCM Controller platform_devices */
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static int s3c64xx_pcm_cfg_gpio(struct platform_device *pdev)
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{
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unsigned int base;
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switch (pdev->id) {
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case 0:
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base = S3C64XX_GPD(0);
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break;
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case 1:
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base = S3C64XX_GPE(0);
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break;
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default:
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printk(KERN_DEBUG "Invalid PCM Controller number: %d\n",
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pdev->id);
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return -EINVAL;
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}
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s3c_gpio_cfgpin_range(base, 5, S3C_GPIO_SFN(2));
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return 0;
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}
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static struct resource s3c64xx_pcm0_resource[] = {
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[0] = {
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.start = S3C64XX_PA_PCM0,
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.end = S3C64XX_PA_PCM0 + 0x100 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = DMACH_PCM0_TX,
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.end = DMACH_PCM0_TX,
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.flags = IORESOURCE_DMA,
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},
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[2] = {
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.start = DMACH_PCM0_RX,
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.end = DMACH_PCM0_RX,
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.flags = IORESOURCE_DMA,
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},
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};
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static struct s3c_audio_pdata s3c_pcm0_pdata = {
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.cfg_gpio = s3c64xx_pcm_cfg_gpio,
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};
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struct platform_device s3c64xx_device_pcm0 = {
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.name = "samsung-pcm",
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.id = 0,
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.num_resources = ARRAY_SIZE(s3c64xx_pcm0_resource),
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.resource = s3c64xx_pcm0_resource,
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.dev = {
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.platform_data = &s3c_pcm0_pdata,
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},
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};
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EXPORT_SYMBOL(s3c64xx_device_pcm0);
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static struct resource s3c64xx_pcm1_resource[] = {
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[0] = {
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.start = S3C64XX_PA_PCM1,
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.end = S3C64XX_PA_PCM1 + 0x100 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = DMACH_PCM1_TX,
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.end = DMACH_PCM1_TX,
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.flags = IORESOURCE_DMA,
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},
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[2] = {
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.start = DMACH_PCM1_RX,
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.end = DMACH_PCM1_RX,
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.flags = IORESOURCE_DMA,
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},
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};
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static struct s3c_audio_pdata s3c_pcm1_pdata = {
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.cfg_gpio = s3c64xx_pcm_cfg_gpio,
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};
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struct platform_device s3c64xx_device_pcm1 = {
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.name = "samsung-pcm",
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.id = 1,
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.num_resources = ARRAY_SIZE(s3c64xx_pcm1_resource),
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.resource = s3c64xx_pcm1_resource,
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.dev = {
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.platform_data = &s3c_pcm1_pdata,
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},
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};
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EXPORT_SYMBOL(s3c64xx_device_pcm1);
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/* AC97 Controller platform devices */
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static int s3c64xx_ac97_cfg_gpd(struct platform_device *pdev)
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{
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return s3c_gpio_cfgpin_range(S3C64XX_GPD(0), 5, S3C_GPIO_SFN(4));
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}
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static int s3c64xx_ac97_cfg_gpe(struct platform_device *pdev)
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{
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return s3c_gpio_cfgpin_range(S3C64XX_GPE(0), 5, S3C_GPIO_SFN(4));
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}
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static struct resource s3c64xx_ac97_resource[] = {
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[0] = {
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.start = S3C64XX_PA_AC97,
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.end = S3C64XX_PA_AC97 + 0x100 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = DMACH_AC97_PCMOUT,
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.end = DMACH_AC97_PCMOUT,
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.flags = IORESOURCE_DMA,
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},
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[2] = {
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.start = DMACH_AC97_PCMIN,
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.end = DMACH_AC97_PCMIN,
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.flags = IORESOURCE_DMA,
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},
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[3] = {
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.start = DMACH_AC97_MICIN,
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.end = DMACH_AC97_MICIN,
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.flags = IORESOURCE_DMA,
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},
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[4] = {
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.start = IRQ_AC97,
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.end = IRQ_AC97,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct s3c_audio_pdata s3c_ac97_pdata;
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static u64 s3c64xx_ac97_dmamask = DMA_BIT_MASK(32);
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struct platform_device s3c64xx_device_ac97 = {
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.name = "samsung-ac97",
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.id = -1,
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.num_resources = ARRAY_SIZE(s3c64xx_ac97_resource),
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.resource = s3c64xx_ac97_resource,
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.dev = {
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.platform_data = &s3c_ac97_pdata,
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.dma_mask = &s3c64xx_ac97_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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};
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EXPORT_SYMBOL(s3c64xx_device_ac97);
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void __init s3c64xx_ac97_setup_gpio(int num)
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{
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if (num == S3C64XX_AC97_GPD)
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s3c_ac97_pdata.cfg_gpio = s3c64xx_ac97_cfg_gpd;
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else
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s3c_ac97_pdata.cfg_gpio = s3c64xx_ac97_cfg_gpe;
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}
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