398 строки
9.3 KiB
C
398 строки
9.3 KiB
C
/*
|
|
* linux/arch/arm/mach-omap1/board-nokia770.c
|
|
*
|
|
* Modified from board-generic.c
|
|
*
|
|
* 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/mutex.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/input.h>
|
|
#include <linux/clk.h>
|
|
|
|
#include <linux/spi/spi.h>
|
|
#include <linux/spi/ads7846.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/delay.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
|
|
#include <mach/gpio.h>
|
|
#include <mach/mux.h>
|
|
#include <mach/usb.h>
|
|
#include <mach/board.h>
|
|
#include <mach/keypad.h>
|
|
#include <mach/common.h>
|
|
#include <mach/dsp_common.h>
|
|
#include <mach/aic23.h>
|
|
#include <mach/omapfb.h>
|
|
#include <mach/lcd_mipid.h>
|
|
#include <mach/mmc.h>
|
|
|
|
#define ADS7846_PENDOWN_GPIO 15
|
|
|
|
static void __init omap_nokia770_init_irq(void)
|
|
{
|
|
/* On Nokia 770, the SleepX signal is masked with an
|
|
* MPUIO line by default. It has to be unmasked for it
|
|
* to become functional */
|
|
|
|
/* SleepX mask direction */
|
|
omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
|
|
/* Unmask SleepX signal */
|
|
omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
|
|
|
|
omap1_init_common_hw();
|
|
omap_init_irq();
|
|
}
|
|
|
|
static int nokia770_keymap[] = {
|
|
KEY(0, 1, GROUP_0 | KEY_UP),
|
|
KEY(0, 2, GROUP_1 | KEY_F5),
|
|
KEY(1, 0, GROUP_0 | KEY_LEFT),
|
|
KEY(1, 1, GROUP_0 | KEY_ENTER),
|
|
KEY(1, 2, GROUP_0 | KEY_RIGHT),
|
|
KEY(2, 0, GROUP_1 | KEY_ESC),
|
|
KEY(2, 1, GROUP_0 | KEY_DOWN),
|
|
KEY(2, 2, GROUP_1 | KEY_F4),
|
|
KEY(3, 0, GROUP_2 | KEY_F7),
|
|
KEY(3, 1, GROUP_2 | KEY_F8),
|
|
KEY(3, 2, GROUP_2 | KEY_F6),
|
|
0
|
|
};
|
|
|
|
static struct resource nokia770_kp_resources[] = {
|
|
[0] = {
|
|
.start = INT_KEYBOARD,
|
|
.end = INT_KEYBOARD,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct omap_kp_platform_data nokia770_kp_data = {
|
|
.rows = 8,
|
|
.cols = 8,
|
|
.keymap = nokia770_keymap,
|
|
.keymapsize = ARRAY_SIZE(nokia770_keymap),
|
|
.delay = 4,
|
|
};
|
|
|
|
static struct platform_device nokia770_kp_device = {
|
|
.name = "omap-keypad",
|
|
.id = -1,
|
|
.dev = {
|
|
.platform_data = &nokia770_kp_data,
|
|
},
|
|
.num_resources = ARRAY_SIZE(nokia770_kp_resources),
|
|
.resource = nokia770_kp_resources,
|
|
};
|
|
|
|
static struct platform_device *nokia770_devices[] __initdata = {
|
|
&nokia770_kp_device,
|
|
};
|
|
|
|
static void mipid_shutdown(struct mipid_platform_data *pdata)
|
|
{
|
|
if (pdata->nreset_gpio != -1) {
|
|
printk(KERN_INFO "shutdown LCD\n");
|
|
gpio_set_value(pdata->nreset_gpio, 0);
|
|
msleep(120);
|
|
}
|
|
}
|
|
|
|
static struct mipid_platform_data nokia770_mipid_platform_data = {
|
|
.shutdown = mipid_shutdown,
|
|
};
|
|
|
|
static void mipid_dev_init(void)
|
|
{
|
|
const struct omap_lcd_config *conf;
|
|
|
|
conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
|
|
if (conf != NULL) {
|
|
nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
|
|
nokia770_mipid_platform_data.data_lines = conf->data_lines;
|
|
}
|
|
}
|
|
|
|
static void ads7846_dev_init(void)
|
|
{
|
|
if (gpio_request(ADS7846_PENDOWN_GPIO, "ADS7846 pendown") < 0)
|
|
printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
|
|
}
|
|
|
|
static int ads7846_get_pendown_state(void)
|
|
{
|
|
return !gpio_get_value(ADS7846_PENDOWN_GPIO);
|
|
}
|
|
|
|
static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
|
|
.x_max = 0x0fff,
|
|
.y_max = 0x0fff,
|
|
.x_plate_ohms = 180,
|
|
.pressure_max = 255,
|
|
.debounce_max = 10,
|
|
.debounce_tol = 3,
|
|
.debounce_rep = 1,
|
|
.get_pendown_state = ads7846_get_pendown_state,
|
|
};
|
|
|
|
static struct spi_board_info nokia770_spi_board_info[] __initdata = {
|
|
[0] = {
|
|
.modalias = "lcd_mipid",
|
|
.bus_num = 2,
|
|
.chip_select = 3,
|
|
.max_speed_hz = 12000000,
|
|
.platform_data = &nokia770_mipid_platform_data,
|
|
},
|
|
[1] = {
|
|
.modalias = "ads7846",
|
|
.bus_num = 2,
|
|
.chip_select = 0,
|
|
.max_speed_hz = 2500000,
|
|
.irq = OMAP_GPIO_IRQ(15),
|
|
.platform_data = &nokia770_ads7846_platform_data,
|
|
},
|
|
};
|
|
|
|
|
|
/* assume no Mini-AB port */
|
|
|
|
static struct omap_usb_config nokia770_usb_config __initdata = {
|
|
.otg = 1,
|
|
.register_host = 1,
|
|
.register_dev = 1,
|
|
.hmc_mode = 16,
|
|
.pins[0] = 6,
|
|
};
|
|
|
|
#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
|
|
|
|
#define NOKIA770_GPIO_MMC_POWER 41
|
|
#define NOKIA770_GPIO_MMC_SWITCH 23
|
|
|
|
static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
|
|
int vdd)
|
|
{
|
|
if (power_on)
|
|
gpio_set_value(NOKIA770_GPIO_MMC_POWER, 1);
|
|
else
|
|
gpio_set_value(NOKIA770_GPIO_MMC_POWER, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
|
|
{
|
|
return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
|
|
}
|
|
|
|
static struct omap_mmc_platform_data nokia770_mmc2_data = {
|
|
.nr_slots = 1,
|
|
.dma_mask = 0xffffffff,
|
|
.slots[0] = {
|
|
.set_power = nokia770_mmc_set_power,
|
|
.get_cover_state = nokia770_mmc_get_cover_state,
|
|
.name = "mmcblk",
|
|
},
|
|
};
|
|
|
|
static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
|
|
|
|
static void __init nokia770_mmc_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
|
|
if (ret < 0)
|
|
return;
|
|
gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
|
|
|
|
ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
|
|
if (ret < 0) {
|
|
gpio_free(NOKIA770_GPIO_MMC_POWER);
|
|
return;
|
|
}
|
|
gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
|
|
|
|
/* Only the second MMC controller is used */
|
|
nokia770_mmc_data[1] = &nokia770_mmc2_data;
|
|
omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
|
|
}
|
|
|
|
#else
|
|
static inline void nokia770_mmc_init(void)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
static struct omap_board_config_kernel nokia770_config[] __initdata = {
|
|
{ OMAP_TAG_USB, NULL },
|
|
};
|
|
|
|
#if defined(CONFIG_OMAP_DSP)
|
|
/*
|
|
* audio power control
|
|
*/
|
|
#define HEADPHONE_GPIO 14
|
|
#define AMPLIFIER_CTRL_GPIO 58
|
|
|
|
static struct clk *dspxor_ck;
|
|
static DEFINE_MUTEX(audio_pwr_lock);
|
|
/*
|
|
* audio_pwr_state
|
|
* +--+-------------------------+---------------------------------------+
|
|
* |-1|down |power-up request -> 0 |
|
|
* +--+-------------------------+---------------------------------------+
|
|
* | 0|up |power-down(1) request -> 1 |
|
|
* | | |power-down(2) request -> (ignore) |
|
|
* +--+-------------------------+---------------------------------------+
|
|
* | 1|up, |power-up request -> 0 |
|
|
* | |received down(1) request |power-down(2) request -> -1 |
|
|
* +--+-------------------------+---------------------------------------+
|
|
*/
|
|
static int audio_pwr_state = -1;
|
|
|
|
/*
|
|
* audio_pwr_up / down should be called under audio_pwr_lock
|
|
*/
|
|
static void nokia770_audio_pwr_up(void)
|
|
{
|
|
clk_enable(dspxor_ck);
|
|
|
|
/* Turn on codec */
|
|
aic23_power_up();
|
|
|
|
if (gpio_get_value(HEADPHONE_GPIO))
|
|
/* HP not connected, turn on amplifier */
|
|
gpio_set_value(AMPLIFIER_CTRL_GPIO, 1);
|
|
else
|
|
/* HP connected, do not turn on amplifier */
|
|
printk("HP connected\n");
|
|
}
|
|
|
|
static void codec_delayed_power_down(struct work_struct *work)
|
|
{
|
|
mutex_lock(&audio_pwr_lock);
|
|
if (audio_pwr_state == -1)
|
|
aic23_power_down();
|
|
clk_disable(dspxor_ck);
|
|
mutex_unlock(&audio_pwr_lock);
|
|
}
|
|
|
|
static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down);
|
|
|
|
static void nokia770_audio_pwr_down(void)
|
|
{
|
|
/* Turn off amplifier */
|
|
gpio_set_value(AMPLIFIER_CTRL_GPIO, 0);
|
|
|
|
/* Turn off codec: schedule delayed work */
|
|
schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */
|
|
}
|
|
|
|
static int
|
|
nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage)
|
|
{
|
|
mutex_lock(&audio_pwr_lock);
|
|
if (audio_pwr_state == -1)
|
|
nokia770_audio_pwr_up();
|
|
/* force audio_pwr_state = 0, even if it was 1. */
|
|
audio_pwr_state = 0;
|
|
mutex_unlock(&audio_pwr_lock);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
|
|
{
|
|
mutex_lock(&audio_pwr_lock);
|
|
switch (stage) {
|
|
case 1:
|
|
if (audio_pwr_state == 0)
|
|
audio_pwr_state = 1;
|
|
break;
|
|
case 2:
|
|
if (audio_pwr_state == 1) {
|
|
nokia770_audio_pwr_down();
|
|
audio_pwr_state = -1;
|
|
}
|
|
break;
|
|
}
|
|
mutex_unlock(&audio_pwr_lock);
|
|
return 0;
|
|
}
|
|
|
|
static struct dsp_kfunc_device nokia770_audio_device = {
|
|
.name = "audio",
|
|
.type = DSP_KFUNC_DEV_TYPE_AUDIO,
|
|
.enable = nokia770_audio_pwr_up_request,
|
|
.disable = nokia770_audio_pwr_down_request,
|
|
};
|
|
|
|
static __init int omap_dsp_init(void)
|
|
{
|
|
int ret;
|
|
|
|
dspxor_ck = clk_get(0, "dspxor_ck");
|
|
if (IS_ERR(dspxor_ck)) {
|
|
printk(KERN_ERR "couldn't acquire dspxor_ck\n");
|
|
return PTR_ERR(dspxor_ck);
|
|
}
|
|
|
|
ret = dsp_kfunc_device_register(&nokia770_audio_device);
|
|
if (ret) {
|
|
printk(KERN_ERR
|
|
"KFUNC device registration faild: %s\n",
|
|
nokia770_audio_device.name);
|
|
goto out;
|
|
}
|
|
return 0;
|
|
out:
|
|
return ret;
|
|
}
|
|
#else
|
|
#define omap_dsp_init() do {} while (0)
|
|
#endif /* CONFIG_OMAP_DSP */
|
|
|
|
static void __init omap_nokia770_init(void)
|
|
{
|
|
nokia770_config[0].data = &nokia770_usb_config;
|
|
|
|
platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
|
|
spi_register_board_info(nokia770_spi_board_info,
|
|
ARRAY_SIZE(nokia770_spi_board_info));
|
|
omap_board_config = nokia770_config;
|
|
omap_board_config_size = ARRAY_SIZE(nokia770_config);
|
|
omap_gpio_init();
|
|
omap_serial_init();
|
|
omap_register_i2c_bus(1, 100, NULL, 0);
|
|
omap_dsp_init();
|
|
ads7846_dev_init();
|
|
mipid_dev_init();
|
|
nokia770_mmc_init();
|
|
}
|
|
|
|
static void __init omap_nokia770_map_io(void)
|
|
{
|
|
omap1_map_common_io();
|
|
}
|
|
|
|
MACHINE_START(NOKIA770, "Nokia 770")
|
|
.phys_io = 0xfff00000,
|
|
.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
|
|
.boot_params = 0x10000100,
|
|
.map_io = omap_nokia770_map_io,
|
|
.init_irq = omap_nokia770_init_irq,
|
|
.init_machine = omap_nokia770_init,
|
|
.timer = &omap_timer,
|
|
MACHINE_END
|