diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-s3c2410/mach-bast.c | 32 | ||||
| -rw-r--r-- | arch/arm/mach-s3c6410/Kconfig | 10 | ||||
| -rw-r--r-- | arch/arm/mach-s3c6410/Makefile | 3 | ||||
| -rw-r--r-- | arch/arm/mach-s3c6410/mach-hmt.c | 276 | ||||
| -rw-r--r-- | arch/arm/plat-s3c/include/plat/adc.h | 8 | ||||
| -rw-r--r-- | arch/arm/plat-s3c/include/plat/devs.h | 2 | ||||
| -rw-r--r-- | arch/arm/plat-s3c/include/plat/hwmon.h | 41 | ||||
| -rw-r--r-- | arch/arm/plat-s3c24xx/adc.c | 64 | ||||
| -rw-r--r-- | arch/arm/plat-s3c24xx/devs.c | 2 |
9 files changed, 422 insertions, 16 deletions
diff --git a/arch/arm/mach-s3c2410/mach-bast.c b/arch/arm/mach-s3c2410/mach-bast.c index ce3baba2cd7..06670bb89ca 100644 --- a/arch/arm/mach-s3c2410/mach-bast.c +++ b/arch/arm/mach-s3c2410/mach-bast.c @@ -45,6 +45,7 @@ #include <mach/regs-mem.h> #include <mach/regs-lcd.h> +#include <plat/hwmon.h> #include <plat/nand.h> #include <plat/iic.h> #include <mach/fb.h> @@ -547,7 +548,35 @@ static struct i2c_board_info bast_i2c_devs[] __initdata = { }, }; +static struct s3c_hwmon_pdata bast_hwmon_info = { + /* LCD contrast (0-6.6V) */ + .in[0] = &(struct s3c_hwmon_chcfg) { + .name = "lcd-contrast", + .mult = 3300, + .div = 512, + }, + /* LED current feedback */ + .in[1] = &(struct s3c_hwmon_chcfg) { + .name = "led-feedback", + .mult = 3300, + .div = 1024, + }, + /* LCD feedback (0-6.6V) */ + .in[2] = &(struct s3c_hwmon_chcfg) { + .name = "lcd-feedback", + .mult = 3300, + .div = 512, + }, + /* Vcore (1.8-2.0V), Vref 3.3V */ + .in[3] = &(struct s3c_hwmon_chcfg) { + .name = "vcore", + .mult = 3300, + .div = 1024, + }, +}; + /* Standard BAST devices */ +// cat /sys/devices/platform/s3c24xx-adc/s3c-hwmon/in_0 static struct platform_device *bast_devices[] __initdata = { &s3c_device_usb, @@ -556,6 +585,8 @@ static struct platform_device *bast_devices[] __initdata = { &s3c_device_i2c0, &s3c_device_rtc, &s3c_device_nand, + &s3c_device_adc, + &s3c_device_hwmon, &bast_device_dm9k, &bast_device_asix, &bast_device_axpp, @@ -588,6 +619,7 @@ static void __init bast_map_io(void) s3c24xx_register_clocks(bast_clocks, ARRAY_SIZE(bast_clocks)); s3c_device_nand.dev.platform_data = &bast_nand_info; + s3c_device_hwmon.dev.platform_data = &bast_hwmon_info; s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc)); s3c24xx_init_clocks(0); diff --git a/arch/arm/mach-s3c6410/Kconfig b/arch/arm/mach-s3c6410/Kconfig index e63aac7f4e5..f9d0f09f976 100644 --- a/arch/arm/mach-s3c6410/Kconfig +++ b/arch/arm/mach-s3c6410/Kconfig @@ -97,3 +97,13 @@ config MACH_NCP select S3C64XX_SETUP_I2C1 help Machine support for the Samsung NCP + +config MACH_HMT + bool "Airgoo HMT" + select CPU_S3C6410 + select S3C_DEV_FB + select S3C_DEV_USB_HOST + select S3C64XX_SETUP_FB_24BPP + select HAVE_PWM + help + Machine support for the Airgoo HMT diff --git a/arch/arm/mach-s3c6410/Makefile b/arch/arm/mach-s3c6410/Makefile index 6f9deac8861..3e48c3dbf97 100644 --- a/arch/arm/mach-s3c6410/Makefile +++ b/arch/arm/mach-s3c6410/Makefile @@ -23,5 +23,4 @@ obj-$(CONFIG_S3C6410_SETUP_SDHCI) += setup-sdhci.o obj-$(CONFIG_MACH_ANW6410) += mach-anw6410.o obj-$(CONFIG_MACH_SMDK6410) += mach-smdk6410.o obj-$(CONFIG_MACH_NCP) += mach-ncp.o - - +obj-$(CONFIG_MACH_HMT) += mach-hmt.o diff --git a/arch/arm/mach-s3c6410/mach-hmt.c b/arch/arm/mach-s3c6410/mach-hmt.c new file mode 100644 index 00000000000..c5741056193 --- /dev/null +++ b/arch/arm/mach-s3c6410/mach-hmt.c @@ -0,0 +1,276 @@ +/* mach-hmt.c - Platform code for Airgoo HMT + * + * Copyright 2009 Peter Korsgaard <jacmet@sunsite.dk> + * + * 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/init.h> +#include <linux/serial_core.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/i2c.h> +#include <linux/fb.h> +#include <linux/gpio.h> +#include <linux/delay.h> +#include <linux/leds.h> +#include <linux/pwm_backlight.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <mach/hardware.h> +#include <mach/regs-fb.h> +#include <mach/map.h> + +#include <asm/irq.h> +#include <asm/mach-types.h> + +#include <plat/regs-serial.h> +#include <plat/iic.h> +#include <plat/fb.h> +#include <plat/nand.h> + +#include <plat/s3c6410.h> +#include <plat/clock.h> +#include <plat/devs.h> +#include <plat/cpu.h> + +#define UCON S3C2410_UCON_DEFAULT +#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE) +#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE) + +static struct s3c2410_uartcfg hmt_uartcfgs[] __initdata = { + [0] = { + .hwport = 0, + .flags = 0, + .ucon = UCON, + .ulcon = ULCON, + .ufcon = UFCON, + }, + [1] = { + .hwport = 1, + .flags = 0, + .ucon = UCON, + .ulcon = ULCON, + .ufcon = UFCON, + }, + [2] = { + .hwport = 2, + .flags = 0, + .ucon = UCON, + .ulcon = ULCON, + .ufcon = UFCON, + }, +}; + +static int hmt_bl_init(struct device *dev) +{ + int ret; + + ret = gpio_request(S3C64XX_GPB(4), "lcd backlight enable"); + if (!ret) + ret = gpio_direction_output(S3C64XX_GPB(4), 0); + + return ret; +} + +static int hmt_bl_notify(int brightness) +{ + /* + * translate from CIELUV/CIELAB L*->brightness, E.G. from + * perceived luminance to light output. Assumes range 0..25600 + */ + if (brightness < 0x800) { + /* Y = Yn * L / 903.3 */ + brightness = (100*256 * brightness + 231245/2) / 231245; + } else { + /* Y = Yn * ((L + 16) / 116 )^3 */ + int t = (brightness*4 + 16*1024 + 58)/116; + brightness = 25 * ((t * t * t + 0x100000/2) / 0x100000); + } + + gpio_set_value(S3C64XX_GPB(4), brightness); + + return brightness; +} + +static void hmt_bl_exit(struct device *dev) +{ + gpio_free(S3C64XX_GPB(4)); +} + +static struct platform_pwm_backlight_data hmt_backlight_data = { + .pwm_id = 1, + .max_brightness = 100 * 256, + .dft_brightness = 40 * 256, + .pwm_period_ns = 1000000000 / (100 * 256 * 20), + .init = hmt_bl_init, + .notify = hmt_bl_notify, + .exit = hmt_bl_exit, + +}; + +static struct platform_device hmt_backlight_device = { + .name = "pwm-backlight", + .dev = { + .parent = &s3c_device_timer[1].dev, + .platform_data = &hmt_backlight_data, + }, +}; + +static struct s3c_fb_pd_win hmt_fb_win0 = { + .win_mode = { + .pixclock = 41094, + .left_margin = 8, + .right_margin = 13, + .upper_margin = 7, + .lower_margin = 5, + .hsync_len = 3, + .vsync_len = 1, + .xres = 800, + .yres = 480, + }, + .max_bpp = 32, + .default_bpp = 16, +}; + +/* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */ +static struct s3c_fb_platdata hmt_lcd_pdata __initdata = { + .setup_gpio = s3c64xx_fb_gpio_setup_24bpp, + .win[0] = &hmt_fb_win0, + .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB, + .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC, +}; + +static struct mtd_partition hmt_nand_part[] = { + [0] = { + .name = "uboot", + .size = SZ_512K, + .offset = 0, + }, + [1] = { + .name = "uboot-env1", + .size = SZ_256K, + .offset = SZ_512K, + }, + [2] = { + .name = "uboot-env2", + .size = SZ_256K, + .offset = SZ_512K + SZ_256K, + }, + [3] = { + .name = "kernel", + .size = SZ_2M, + .offset = SZ_1M, + }, + [4] = { + .name = "rootfs", + .size = MTDPART_SIZ_FULL, + .offset = SZ_1M + SZ_2M, + }, +}; + +static struct s3c2410_nand_set hmt_nand_sets[] = { + [0] = { + .name = "nand", + .nr_chips = 1, + .nr_partitions = ARRAY_SIZE(hmt_nand_part), + .partitions = hmt_nand_part, + }, +}; + +static struct s3c2410_platform_nand hmt_nand_info = { + .tacls = 25, + .twrph0 = 55, + .twrph1 = 40, + .nr_sets = ARRAY_SIZE(hmt_nand_sets), + .sets = hmt_nand_sets, +}; + +static struct gpio_led hmt_leds[] = { + { /* left function keys */ + .name = "left:blue", + .gpio = S3C64XX_GPO(12), + .default_trigger = "default-on", + }, + { /* right function keys - red */ + .name = "right:red", + .gpio = S3C64XX_GPO(13), + }, + { /* right function keys - green */ + .name = "right:green", + .gpio = S3C64XX_GPO(14), + }, + { /* right function keys - blue */ + .name = "right:blue", + .gpio = S3C64XX_GPO(15), + .default_trigger = "default-on", + }, +}; + +static struct gpio_led_platform_data hmt_led_data = { + .num_leds = ARRAY_SIZE(hmt_leds), + .leds = hmt_leds, +}; + +static struct platform_device hmt_leds_device = { + .name = "leds-gpio", + .id = -1, + .dev.platform_data = &hmt_led_data, +}; + +static struct map_desc hmt_iodesc[] = {}; + +static struct platform_device *hmt_devices[] __initdata = { + &s3c_device_i2c0, + &s3c_device_nand, + &s3c_device_fb, + &s3c_device_usb, + &s3c_device_timer[1], + &hmt_backlight_device, + &hmt_leds_device, +}; + +static void __init hmt_map_io(void) +{ + s3c64xx_init_io(hmt_iodesc, ARRAY_SIZE(hmt_iodesc)); + s3c24xx_init_clocks(12000000); + s3c24xx_init_uarts(hmt_uartcfgs, ARRAY_SIZE(hmt_uartcfgs)); +} + +static void __init hmt_machine_init(void) +{ + s3c_i2c0_set_platdata(NULL); + s3c_fb_set_platdata(&hmt_lcd_pdata); + s3c_device_nand.dev.platform_data = &hmt_nand_info; + + gpio_request(S3C64XX_GPC(7), "usb power"); + gpio_direction_output(S3C64XX_GPC(7), 0); + gpio_request(S3C64XX_GPM(0), "usb power"); + gpio_direction_output(S3C64XX_GPM(0), 1); + gpio_request(S3C64XX_GPK(7), "usb power"); + gpio_direction_output(S3C64XX_GPK(7), 1); + gpio_request(S3C64XX_GPF(13), "usb power"); + gpio_direction_output(S3C64XX_GPF(13), 1); + + platform_add_devices(hmt_devices, ARRAY_SIZE(hmt_devices)); +} + +MACHINE_START(HMT, "Airgoo-HMT") + /* Maintainer: Peter Korsgaard <jacmet@sunsite.dk> */ + .phys_io = S3C_PA_UART & 0xfff00000, + .io_pg_offst = (((u32)S3C_VA_UART) >> 18) & 0xfffc, + .boot_params = S3C64XX_PA_SDRAM + 0x100, + .init_irq = s3c6410_init_irq, + .map_io = hmt_map_io, + .init_machine = hmt_machine_init, + .timer = &s3c24xx_timer, +MACHINE_END diff --git a/arch/arm/plat-s3c/include/plat/adc.h b/arch/arm/plat-s3c/include/plat/adc.h index d847bd476b6..5f3b1cd53b9 100644 --- a/arch/arm/plat-s3c/include/plat/adc.h +++ b/arch/arm/plat-s3c/include/plat/adc.h @@ -19,10 +19,14 @@ struct s3c_adc_client; extern int s3c_adc_start(struct s3c_adc_client *client, unsigned int channel, unsigned int nr_samples); +extern int s3c_adc_read(struct s3c_adc_client *client, unsigned int ch); + extern struct s3c_adc_client * s3c_adc_register(struct platform_device *pdev, - void (*select)(unsigned selected), - void (*conv)(unsigned d0, unsigned d1, + void (*select)(struct s3c_adc_client *client, + unsigned selected), + void (*conv)(struct s3c_adc_client *client, + unsigned d0, unsigned d1, unsigned *samples_left), unsigned int is_ts); diff --git a/arch/arm/plat-s3c/include/plat/devs.h b/arch/arm/plat-s3c/include/plat/devs.h index 2e6599411c2..0f540ea1e99 100644 --- a/arch/arm/plat-s3c/include/plat/devs.h +++ b/arch/arm/plat-s3c/include/plat/devs.h @@ -46,6 +46,8 @@ extern struct platform_device s3c_device_hsmmc2; extern struct platform_device s3c_device_spi0; extern struct platform_device s3c_device_spi1; +extern struct platform_device s3c_device_hwmon; + extern struct platform_device s3c_device_nand; extern struct platform_device s3c_device_usbgadget; diff --git a/arch/arm/plat-s3c/include/plat/hwmon.h b/arch/arm/plat-s3c/include/plat/hwmon.h new file mode 100644 index 00000000000..1ba88ea0aa3 --- /dev/null +++ b/arch/arm/plat-s3c/include/plat/hwmon.h @@ -0,0 +1,41 @@ +/* linux/arch/arm/plat-s3c/include/plat/hwmon.h + * + * Copyright 2005 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C - HWMon interface for ADC + * + * 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. +*/ + +#ifndef __ASM_ARCH_ADC_HWMON_H +#define __ASM_ARCH_ADC_HWMON_H __FILE__ + +/** + * s3c_hwmon_chcfg - channel configuration + * @name: The name to give this channel. + * @mult: Multiply the ADC value read by this. + * @div: Divide the value from the ADC by this. + * + * The value read from the ADC is converted to a value that + * hwmon expects (mV) by result = (value_read * @mult) / @div. + */ +struct s3c_hwmon_chcfg { + const char *name; + unsigned int mult; + unsigned int div; +}; + +/** + * s3c_hwmon_pdata - HWMON platform data + * @in: One configuration for each possible channel used. + */ +struct s3c_hwmon_pdata { + struct s3c_hwmon_chcfg *in[8]; +}; + +#endif /* __ASM_ARCH_ADC_HWMON_H */ + diff --git a/arch/arm/plat-s3c24xx/adc.c b/arch/arm/plat-s3c24xx/adc.c index ee1baf11ad9..11117a7ba91 100644 --- a/arch/arm/plat-s3c24xx/adc.c +++ b/arch/arm/plat-s3c24xx/adc.c @@ -39,13 +39,16 @@ struct s3c_adc_client { struct platform_device *pdev; struct list_head pend; + wait_queue_head_t *wait; unsigned int nr_samples; + int result; unsigned char is_ts; unsigned char channel; - void (*select_cb)(unsigned selected); - void (*convert_cb)(unsigned val1, unsigned val2, + void (*select_cb)(struct s3c_adc_client *c, unsigned selected); + void (*convert_cb)(struct s3c_adc_client *c, + unsigned val1, unsigned val2, unsigned *samples_left); }; @@ -81,7 +84,7 @@ static inline void s3c_adc_select(struct adc_device *adc, { unsigned con = readl(adc->regs + S3C2410_ADCCON); - client->select_cb(1); + client->select_cb(client, 1); con &= ~S3C2410_ADCCON_MUXMASK; con &= ~S3C2410_ADCCON_STDBM; @@ -153,25 +156,61 @@ int s3c_adc_start(struct s3c_adc_client *client, } EXPORT_SYMBOL_GPL(s3c_adc_start); -static void s3c_adc_default_select(unsigned select) +static void s3c_convert_done(struct s3c_adc_client *client, + unsigned v, unsigned u, unsigned *left) +{ + client->result = v; + wake_up(client->wait); +} + +int s3c_adc_read(struct s3c_adc_client *client, unsigned int ch) +{ + DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake); + int ret; + + client->convert_cb = s3c_convert_done; + client->wait = &wake; + client->result = -1; + + ret = s3c_adc_start(client, ch, 1); + if (ret < 0) + goto err; + + ret = wait_event_timeout(wake, client->result >= 0, HZ / 2); + if (client->result < 0) { + ret = -ETIMEDOUT; + goto err; + } + + client->convert_cb = NULL; + return client->result; + +err: + return ret; +} +EXPORT_SYMBOL_GPL(s3c_adc_convert); + +static void s3c_adc_default_select(struct s3c_adc_client *client, + unsigned select) { } struct s3c_adc_client *s3c_adc_register(struct platform_device *pdev, - void (*select)(unsigned int selected), - void (*conv)(unsigned d0, unsigned d1, + void (*select)(struct s3c_adc_client *client, + unsigned int selected), + void (*conv)(struct s3c_adc_client *client, + unsigned d0, unsigned d1, unsigned *samples_left), unsigned int is_ts) { struct s3c_adc_client *client; WARN_ON(!pdev); - WARN_ON(!conv); if (!select) select = s3c_adc_default_select; - if (!conv || !pdev) + if (!pdev) return ERR_PTR(-EINVAL); client = kzalloc(sizeof(struct s3c_adc_client), GFP_KERNEL); @@ -230,16 +269,19 @@ static irqreturn_t s3c_adc_irq(int irq, void *pw) adc_dbg(adc, "read %d: 0x%04x, 0x%04x\n", client->nr_samples, data0, data1); client->nr_samples--; - (client->convert_cb)(data0 & 0x3ff, data1 & 0x3ff, &client->nr_samples); + + if (client->convert_cb) + (client->convert_cb)(client, data0 & 0x3ff, data1 & 0x3ff, + &client->nr_samples); if (client->nr_samples > 0) { /* fire another conversion for this */ - client->select_cb(1); + client->select_cb(client, 1); s3c_adc_convert(adc); } else { local_irq_save(flags); - (client->select_cb)(0); + (client->select_cb)(client, 0); adc->cur = NULL; s3c_adc_try(adc); diff --git a/arch/arm/plat-s3c24xx/devs.c b/arch/arm/plat-s3c24xx/devs.c index 4553ad6c7ad..656b375db46 100644 --- a/arch/arm/plat-s3c24xx/devs.c +++ b/arch/arm/plat-s3c24xx/devs.c @@ -350,7 +350,7 @@ struct platform_device s3c_device_adc = { /* HWMON */ struct platform_device s3c_device_hwmon = { - .name = "s3c24xx-hwmon", + .name = "s3c-hwmon", .id = -1, .dev.parent = &s3c_device_adc.dev, }; 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