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linux/arch/arm/mach-pxa/mioa701.c

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/*
* Handles the Mitac Mio A701 Board
*
* Copyright (C) 2008 Robert Jarzmik
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/sysdev.h>
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/gpio_keys.h>
#include <linux/pwm_backlight.h>
#include <linux/rtc.h>
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/pda_power.h>
#include <linux/power_supply.h>
#include <linux/wm97xx.h>
#include <linux/mtd/physmap.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/mfp-pxa27x.h>
#include <mach/pxa27x_keypad.h>
#include <mach/pxafb.h>
#include <mach/pxa2xx-regs.h>
#include <mach/mmc.h>
#include <mach/udc.h>
#include <mach/pxa27x-udc.h>
#include <mach/mioa701.h>
#include "generic.h"
#include "devices.h"
static unsigned long mioa701_pin_config[] = {
/* Mio global */
MIO_CFG_OUT(GPIO9_CHARGE_nEN, AF0, DRIVE_LOW),
MIO_CFG_OUT(GPIO18_POWEROFF, AF0, DRIVE_LOW),
MFP_CFG_OUT(GPIO3, AF0, DRIVE_HIGH),
MFP_CFG_OUT(GPIO4, AF0, DRIVE_HIGH),
/* Backlight PWM 0 */
GPIO16_PWM0_OUT,
/* MMC */
GPIO32_MMC_CLK,
GPIO92_MMC_DAT_0,
GPIO109_MMC_DAT_1,
GPIO110_MMC_DAT_2,
GPIO111_MMC_DAT_3,
GPIO112_MMC_CMD,
MIO_CFG_IN(GPIO78_SDIO_RO, AF0),
MIO_CFG_IN(GPIO15_SDIO_INSERT, AF0),
MIO_CFG_OUT(GPIO91_SDIO_EN, AF0, DRIVE_LOW),
/* USB */
MIO_CFG_IN(GPIO13_USB_DETECT, AF0),
MIO_CFG_OUT(GPIO22_USB_ENABLE, AF0, DRIVE_LOW),
/* LCD */
GPIO58_LCD_LDD_0,
GPIO59_LCD_LDD_1,
GPIO60_LCD_LDD_2,
GPIO61_LCD_LDD_3,
GPIO62_LCD_LDD_4,
GPIO63_LCD_LDD_5,
GPIO64_LCD_LDD_6,
GPIO65_LCD_LDD_7,
GPIO66_LCD_LDD_8,
GPIO67_LCD_LDD_9,
GPIO68_LCD_LDD_10,
GPIO69_LCD_LDD_11,
GPIO70_LCD_LDD_12,
GPIO71_LCD_LDD_13,
GPIO72_LCD_LDD_14,
GPIO73_LCD_LDD_15,
GPIO74_LCD_FCLK,
GPIO75_LCD_LCLK,
GPIO76_LCD_PCLK,
/* Bluetooth */
GPIO44_BTUART_CTS,
GPIO42_BTUART_RXD,
GPIO45_BTUART_RTS,
GPIO43_BTUART_TXD,
MIO_CFG_OUT(GPIO83_BT_ON, AF0, DRIVE_LOW),
/* GPS */
MIO_CFG_OUT(GPIO23_GPS_UNKNOWN1, AF0, DRIVE_LOW),
MIO_CFG_OUT(GPIO26_GPS_ON, AF0, DRIVE_LOW),
MIO_CFG_OUT(GPIO27_GPS_RESET, AF0, DRIVE_LOW),
MIO_CFG_OUT(GPIO106_GPS_UNKNOWN2, AF0, DRIVE_LOW),
MIO_CFG_OUT(GPIO107_GPS_UNKNOWN3, AF0, DRIVE_LOW),
GPIO46_STUART_RXD,
GPIO47_STUART_TXD,
/* GSM */
MIO_CFG_OUT(GPIO24_GSM_MOD_RESET_CMD, AF0, DRIVE_LOW),
MIO_CFG_OUT(GPIO88_GSM_nMOD_ON_CMD, AF0, DRIVE_HIGH),
MIO_CFG_OUT(GPIO90_GSM_nMOD_OFF_CMD, AF0, DRIVE_HIGH),
MIO_CFG_OUT(GPIO114_GSM_nMOD_DTE_UART_STATE, AF0, DRIVE_HIGH),
MIO_CFG_IN(GPIO25_GSM_MOD_ON_STATE, AF0),
MIO_CFG_IN(GPIO113_GSM_EVENT, AF0) | WAKEUP_ON_EDGE_BOTH,
GPIO34_FFUART_RXD,
GPIO35_FFUART_CTS,
GPIO36_FFUART_DCD,
GPIO37_FFUART_DSR,
GPIO39_FFUART_TXD,
GPIO40_FFUART_DTR,
GPIO41_FFUART_RTS,
/* Sound */
GPIO89_AC97_SYSCLK,
MIO_CFG_IN(GPIO12_HPJACK_INSERT, AF0),
/* Leds */
MIO_CFG_OUT(GPIO10_LED_nCharging, AF0, DRIVE_HIGH),
MIO_CFG_OUT(GPIO97_LED_nBlue, AF0, DRIVE_HIGH),
MIO_CFG_OUT(GPIO98_LED_nOrange, AF0, DRIVE_HIGH),
MIO_CFG_OUT(GPIO82_LED_nVibra, AF0, DRIVE_HIGH),
MIO_CFG_OUT(GPIO115_LED_nKeyboard, AF0, DRIVE_HIGH),
/* Keyboard */
MIO_CFG_IN(GPIO0_KEY_POWER, AF0) | WAKEUP_ON_EDGE_BOTH,
MIO_CFG_IN(GPIO93_KEY_VOLUME_UP, AF0),
MIO_CFG_IN(GPIO94_KEY_VOLUME_DOWN, AF0),
GPIO100_KP_MKIN_0,
GPIO101_KP_MKIN_1,
GPIO102_KP_MKIN_2,
GPIO103_KP_MKOUT_0,
GPIO104_KP_MKOUT_1,
GPIO105_KP_MKOUT_2,
/* Unknown */
MFP_CFG_IN(GPIO14, AF0),
MFP_CFG_IN(GPIO20, AF0),
MFP_CFG_IN(GPIO21, AF0),
MFP_CFG_IN(GPIO33, AF0),
MFP_CFG_OUT(GPIO49, AF0, DRIVE_HIGH),
MFP_CFG_OUT(GPIO57, AF0, DRIVE_HIGH),
MFP_CFG_OUT(GPIO77, AF0, DRIVE_HIGH),
MFP_CFG_IN(GPIO80, AF0),
MFP_CFG_OUT(GPIO86, AF0, DRIVE_HIGH),
MFP_CFG_IN(GPIO96, AF0),
MFP_CFG_OUT(GPIO116, AF0, DRIVE_HIGH),
};
#define MIO_GPIO_IN(num, _desc) \
{ .gpio = (num), .dir = 0, .desc = (_desc) }
#define MIO_GPIO_OUT(num, _init, _desc) \
{ .gpio = (num), .dir = 1, .init = (_init), .desc = (_desc) }
struct gpio_ress {
unsigned gpio : 8;
unsigned dir : 1;
unsigned init : 1;
char *desc;
};
static int mio_gpio_request(struct gpio_ress *gpios, int size)
{
int i, rc = 0;
int gpio;
int dir;
for (i = 0; (!rc) && (i < size); i++) {
gpio = gpios[i].gpio;
dir = gpios[i].dir;
rc = gpio_request(gpio, gpios[i].desc);
if (rc) {
printk(KERN_ERR "Error requesting GPIO %d(%s) : %d\n",
gpio, gpios[i].desc, rc);
continue;
}
if (dir)
gpio_direction_output(gpio, gpios[i].init);
else
gpio_direction_input(gpio);
}
while ((rc) && (--i >= 0))
gpio_free(gpios[i].gpio);
return rc;
}
static void mio_gpio_free(struct gpio_ress *gpios, int size)
{
int i;
for (i = 0; i < size; i++)
gpio_free(gpios[i].gpio);
}
/* LCD Screen and Backlight */
static struct platform_pwm_backlight_data mioa701_backlight_data = {
.pwm_id = 0,
.max_brightness = 100,
.dft_brightness = 50,
.pwm_period_ns = 4000 * 1024, /* Fl = 250kHz */
};
/*
* LTM0305A776C LCD panel timings
*
* see:
* - the LTM0305A776C datasheet,
* - and the PXA27x Programmers' manual
*/
static struct pxafb_mode_info mioa701_ltm0305a776c = {
.pixclock = 220000, /* CLK=4.545 MHz */
.xres = 240,
.yres = 320,
.bpp = 16,
.hsync_len = 4,
.vsync_len = 2,
.left_margin = 6,
.right_margin = 4,
.upper_margin = 5,
.lower_margin = 3,
};
static void mioa701_lcd_power(int on, struct fb_var_screeninfo *si)
{
gpio_set_value(GPIO87_LCD_POWER, on);
}
static struct pxafb_mach_info mioa701_pxafb_info = {
.modes = &mioa701_ltm0305a776c,
.num_modes = 1,
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
.pxafb_lcd_power = mioa701_lcd_power,
};
/*
* Keyboard configuration
*/
static unsigned int mioa701_matrix_keys[] = {
KEY(0, 0, KEY_UP),
KEY(0, 1, KEY_RIGHT),
KEY(0, 2, KEY_MEDIA),
KEY(1, 0, KEY_DOWN),
KEY(1, 1, KEY_ENTER),
KEY(1, 2, KEY_CONNECT), /* GPS key */
KEY(2, 0, KEY_LEFT),
KEY(2, 1, KEY_PHONE), /* Phone Green key */
KEY(2, 2, KEY_CAMERA) /* Camera key */
};
static struct pxa27x_keypad_platform_data mioa701_keypad_info = {
.matrix_key_rows = 3,
.matrix_key_cols = 3,
.matrix_key_map = mioa701_matrix_keys,
.matrix_key_map_size = ARRAY_SIZE(mioa701_matrix_keys),
};
/*
* GPIO Key Configuration
*/
#define MIO_KEY(key, _gpio, _desc, _wakeup) \
{ .code = (key), .gpio = (_gpio), .active_low = 0, \
.desc = (_desc), .type = EV_KEY, .wakeup = (_wakeup) }
static struct gpio_keys_button mioa701_button_table[] = {
MIO_KEY(KEY_EXIT, GPIO0_KEY_POWER, "Power button", 1),
MIO_KEY(KEY_VOLUMEUP, GPIO93_KEY_VOLUME_UP, "Volume up", 0),
MIO_KEY(KEY_VOLUMEDOWN, GPIO94_KEY_VOLUME_DOWN, "Volume down", 0),
MIO_KEY(KEY_HP, GPIO12_HPJACK_INSERT, "HP jack detect", 0)
};
static struct gpio_keys_platform_data mioa701_gpio_keys_data = {
.buttons = mioa701_button_table,
.nbuttons = ARRAY_SIZE(mioa701_button_table),
};
/*
* Leds and vibrator
*/
#define ONE_LED(_gpio, _name) \
{ .gpio = (_gpio), .name = (_name), .active_low = true }
static struct gpio_led gpio_leds[] = {
ONE_LED(GPIO10_LED_nCharging, "mioa701:charging"),
ONE_LED(GPIO97_LED_nBlue, "mioa701:blue"),
ONE_LED(GPIO98_LED_nOrange, "mioa701:orange"),
ONE_LED(GPIO82_LED_nVibra, "mioa701:vibra"),
ONE_LED(GPIO115_LED_nKeyboard, "mioa701:keyboard")
};
static struct gpio_led_platform_data gpio_led_info = {
.leds = gpio_leds,
.num_leds = ARRAY_SIZE(gpio_leds),
};
/*
* GSM Sagem XS200 chip
*
* GSM handling was purged from kernel. For history, this is the way to go :
* - init : GPIO24_GSM_MOD_RESET_CMD = 0, GPIO114_GSM_nMOD_DTE_UART_STATE = 1
* GPIO88_GSM_nMOD_ON_CMD = 1, GPIO90_GSM_nMOD_OFF_CMD = 1
* - reset : GPIO24_GSM_MOD_RESET_CMD = 1, msleep(100),
* GPIO24_GSM_MOD_RESET_CMD = 0
* - turn on : GPIO88_GSM_nMOD_ON_CMD = 0, msleep(1000),
* GPIO88_GSM_nMOD_ON_CMD = 1
* - turn off : GPIO90_GSM_nMOD_OFF_CMD = 0, msleep(1000),
* GPIO90_GSM_nMOD_OFF_CMD = 1
*/
static int is_gsm_on(void)
{
int is_on;
is_on = !!gpio_get_value(GPIO25_GSM_MOD_ON_STATE);
return is_on;
}
irqreturn_t gsm_on_irq(int irq, void *p)
{
printk(KERN_DEBUG "Mioa701: GSM status changed to %s\n",
is_gsm_on() ? "on" : "off");
return IRQ_HANDLED;
}
struct gpio_ress gsm_gpios[] = {
MIO_GPIO_IN(GPIO25_GSM_MOD_ON_STATE, "GSM state"),
MIO_GPIO_IN(GPIO113_GSM_EVENT, "GSM event"),
};
static int __init gsm_init(void)
{
int rc;
rc = mio_gpio_request(ARRAY_AND_SIZE(gsm_gpios));
if (rc)
goto err_gpio;
rc = request_irq(gpio_to_irq(GPIO25_GSM_MOD_ON_STATE), gsm_on_irq,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"GSM XS200 Power Irq", NULL);
if (rc)
goto err_irq;
gpio_set_wake(GPIO113_GSM_EVENT, 1);
return 0;
err_irq:
printk(KERN_ERR "Mioa701: Can't request GSM_ON irq\n");
mio_gpio_free(ARRAY_AND_SIZE(gsm_gpios));
err_gpio:
printk(KERN_ERR "Mioa701: gsm not available\n");
return rc;
}
static void gsm_exit(void)
{
free_irq(gpio_to_irq(GPIO25_GSM_MOD_ON_STATE), NULL);
mio_gpio_free(ARRAY_AND_SIZE(gsm_gpios));
}
/*
* Bluetooth BRF6150 chip
*
* BT handling was purged from kernel. For history, this is the way to go :
* - turn on : GPIO83_BT_ON = 1
* - turn off : GPIO83_BT_ON = 0
*/
/*
* GPS Sirf Star III chip
*
* GPS handling was purged from kernel. For history, this is the way to go :
* - init : GPIO23_GPS_UNKNOWN1 = 1, GPIO26_GPS_ON = 0, GPIO27_GPS_RESET = 0
* GPIO106_GPS_UNKNOWN2 = 0, GPIO107_GPS_UNKNOWN3 = 0
* - turn on : GPIO27_GPS_RESET = 1, GPIO26_GPS_ON = 1
* - turn off : GPIO26_GPS_ON = 0, GPIO27_GPS_RESET = 0
*/
/*
* USB UDC
*/
static void udc_power_command(int cmd)
{
switch (cmd) {
case PXA2XX_UDC_CMD_DISCONNECT:
gpio_set_value(GPIO22_USB_ENABLE, 0);
break;
case PXA2XX_UDC_CMD_CONNECT:
gpio_set_value(GPIO22_USB_ENABLE, 1);
break;
default:
printk(KERN_INFO "udc_control: unknown command (0x%x)!\n", cmd);
break;
}
}
static int is_usb_connected(void)
{
return !!gpio_get_value(GPIO13_USB_DETECT);
}
static struct pxa2xx_udc_mach_info mioa701_udc_info = {
.udc_is_connected = is_usb_connected,
.udc_command = udc_power_command,
};
struct gpio_ress udc_gpios[] = {
MIO_GPIO_OUT(GPIO22_USB_ENABLE, 0, "USB Vbus enable")
};
static int __init udc_init(void)
{
pxa_set_udc_info(&mioa701_udc_info);
return mio_gpio_request(ARRAY_AND_SIZE(udc_gpios));
}
static void udc_exit(void)
{
mio_gpio_free(ARRAY_AND_SIZE(udc_gpios));
}
/*
* SDIO/MMC Card controller
*/
static void mci_setpower(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data *p_d = dev->platform_data;
if ((1 << vdd) & p_d->ocr_mask)
gpio_set_value(GPIO91_SDIO_EN, 1); /* enable SDIO power */
else
gpio_set_value(GPIO91_SDIO_EN, 0); /* disable SDIO power */
}
static int mci_get_ro(struct device *dev)
{
return gpio_get_value(GPIO78_SDIO_RO);
}
struct gpio_ress mci_gpios[] = {
MIO_GPIO_IN(GPIO78_SDIO_RO, "SDIO readonly detect"),
MIO_GPIO_IN(GPIO15_SDIO_INSERT, "SDIO insertion detect"),
MIO_GPIO_OUT(GPIO91_SDIO_EN, 0, "SDIO power enable")
};
static void mci_exit(struct device *dev, void *data)
{
mio_gpio_free(ARRAY_AND_SIZE(mci_gpios));
free_irq(gpio_to_irq(GPIO15_SDIO_INSERT), data);
}
static struct pxamci_platform_data mioa701_mci_info;
/**
* The card detect interrupt isn't debounced so we delay it by 250ms
* to give the card a chance to fully insert/eject.
*/
static int mci_init(struct device *dev, irq_handler_t detect_int, void *data)
{
int rc;
int irq = gpio_to_irq(GPIO15_SDIO_INSERT);
rc = mio_gpio_request(ARRAY_AND_SIZE(mci_gpios));
if (rc)
goto err_gpio;
/* enable RE/FE interrupt on card insertion and removal */
rc = request_irq(irq, detect_int,
IRQF_DISABLED | IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING,
"MMC card detect", data);
if (rc)
goto err_irq;
mioa701_mci_info.detect_delay = msecs_to_jiffies(250);
return 0;
err_irq:
dev_err(dev, "mioa701_mci_init: MMC/SD:"
" can't request MMC card detect IRQ\n");
mio_gpio_free(ARRAY_AND_SIZE(mci_gpios));
err_gpio:
return rc;
}
static struct pxamci_platform_data mioa701_mci_info = {
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.init = mci_init,
.get_ro = mci_get_ro,
.setpower = mci_setpower,
.exit = mci_exit,
};
/* FlashRAM */
static struct resource strataflash_resource = {
.start = PXA_CS0_PHYS,
.end = PXA_CS0_PHYS + SZ_64M - 1,
.flags = IORESOURCE_MEM,
};
static struct physmap_flash_data strataflash_data = {
.width = 2,
/* .set_vpp = mioa701_set_vpp, */
};
static struct platform_device strataflash = {
.name = "physmap-flash",
.id = -1,
.resource = &strataflash_resource,
.num_resources = 1,
.dev = {
.platform_data = &strataflash_data,
},
};
/*
* Suspend/Resume bootstrap management
*
* MIO A701 reboot sequence is highly ROM dependant. From the one dissassembled,
* this sequence is as follows :
* - disables interrupts
* - initialize SDRAM (self refresh RAM into active RAM)
* - initialize GPIOs (depends on value at 0xa020b020)
* - initialize coprossessors
* - if edge detect on PWR_SCL(GPIO3), then proceed to cold start
* - or if value at 0xa020b000 not equal to 0x0f0f0f0f, proceed to cold start
* - else do a resume, ie. jump to addr 0xa0100000
*/
#define RESUME_ENABLE_ADDR 0xa020b000
#define RESUME_ENABLE_VAL 0x0f0f0f0f
#define RESUME_BT_ADDR 0xa020b020
#define RESUME_UNKNOWN_ADDR 0xa020b024
#define RESUME_VECTOR_ADDR 0xa0100000
#define BOOTSTRAP_WORDS mioa701_bootstrap_lg/4
static u32 *save_buffer;
static void install_bootstrap(void)
{
int i;
u32 *rom_bootstrap = phys_to_virt(RESUME_VECTOR_ADDR);
u32 *src = &mioa701_bootstrap;
for (i = 0; i < BOOTSTRAP_WORDS; i++)
rom_bootstrap[i] = src[i];
}
static int mioa701_sys_suspend(struct sys_device *sysdev, pm_message_t state)
{
int i = 0, is_bt_on;
u32 *mem_resume_vector = phys_to_virt(RESUME_VECTOR_ADDR);
u32 *mem_resume_enabler = phys_to_virt(RESUME_ENABLE_ADDR);
u32 *mem_resume_bt = phys_to_virt(RESUME_BT_ADDR);
u32 *mem_resume_unknown = phys_to_virt(RESUME_UNKNOWN_ADDR);
/* Devices prepare suspend */
is_bt_on = !!gpio_get_value(GPIO83_BT_ON);
pxa2xx_mfp_set_lpm(GPIO83_BT_ON,
is_bt_on ? MFP_LPM_DRIVE_HIGH : MFP_LPM_DRIVE_LOW);
for (i = 0; i < BOOTSTRAP_WORDS; i++)
save_buffer[i] = mem_resume_vector[i];
save_buffer[i++] = *mem_resume_enabler;
save_buffer[i++] = *mem_resume_bt;
save_buffer[i++] = *mem_resume_unknown;
*mem_resume_enabler = RESUME_ENABLE_VAL;
*mem_resume_bt = is_bt_on;
install_bootstrap();
return 0;
}
static int mioa701_sys_resume(struct sys_device *sysdev)
{
int i = 0;
u32 *mem_resume_vector = phys_to_virt(RESUME_VECTOR_ADDR);
u32 *mem_resume_enabler = phys_to_virt(RESUME_ENABLE_ADDR);
u32 *mem_resume_bt = phys_to_virt(RESUME_BT_ADDR);
u32 *mem_resume_unknown = phys_to_virt(RESUME_UNKNOWN_ADDR);
for (i = 0; i < BOOTSTRAP_WORDS; i++)
mem_resume_vector[i] = save_buffer[i];
*mem_resume_enabler = save_buffer[i++];
*mem_resume_bt = save_buffer[i++];
*mem_resume_unknown = save_buffer[i++];
return 0;
}
static struct sysdev_class mioa701_sysclass = {
.name = "mioa701",
};
static struct sys_device sysdev_bootstrap = {
.cls = &mioa701_sysclass,
};
static struct sysdev_driver driver_bootstrap = {
.suspend = &mioa701_sys_suspend,
.resume = &mioa701_sys_resume,
};
static int __init bootstrap_init(void)
{
int rc;
int save_size = mioa701_bootstrap_lg + (sizeof(u32) * 3);
rc = sysdev_class_register(&mioa701_sysclass);
if (rc) {
printk(KERN_ERR "Failed registering mioa701 sys class\n");
return -ENODEV;
}
rc = sysdev_register(&sysdev_bootstrap);
if (rc) {
printk(KERN_ERR "Failed registering mioa701 sys device\n");
return -ENODEV;
}
rc = sysdev_driver_register(&mioa701_sysclass, &driver_bootstrap);
if (rc) {
printk(KERN_ERR "Failed registering PMU sys driver\n");
return -ENODEV;
}
save_buffer = kmalloc(save_size, GFP_KERNEL);
if (!save_buffer)
return -ENOMEM;
printk(KERN_INFO "MioA701: allocated %d bytes for bootstrap\n",
save_size);
return 0;
}
static void bootstrap_exit(void)
{
kfree(save_buffer);
sysdev_driver_unregister(&mioa701_sysclass, &driver_bootstrap);
sysdev_unregister(&sysdev_bootstrap);
sysdev_class_unregister(&mioa701_sysclass);
printk(KERN_CRIT "Unregistering mioa701 suspend will hang next"
"resume !!!\n");
}
/*
* Power Supply
*/
static char *supplicants[] = {
"mioa701_battery"
};
static void mioa701_set_charge(int flags)
{
gpio_set_value(GPIO9_CHARGE_nEN, !flags);
}
static struct pda_power_pdata power_pdata = {
.is_ac_online = is_usb_connected,
.set_charge = mioa701_set_charge,
.supplied_to = supplicants,
.num_supplicants = ARRAY_SIZE(supplicants),
};
static struct resource power_resources[] = {
[0] = {
.name = "ac",
.start = gpio_to_irq(GPIO13_USB_DETECT),
.end = gpio_to_irq(GPIO13_USB_DETECT),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
IORESOURCE_IRQ_LOWEDGE,
},
};
static struct platform_device power_dev = {
.name = "pda-power",
.id = -1,
.resource = power_resources,
.num_resources = ARRAY_SIZE(power_resources),
.dev = {
.platform_data = &power_pdata,
},
};
#if defined(CONFIG_PDA_POWER) && defined(CONFIG_TOUCHSCREEN_WM97XX)
static struct wm97xx *battery_wm;
static enum power_supply_property battery_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, /* Necessary for apm */
};
static int get_battery_voltage(void)
{
int adc = -1;
if (battery_wm)
adc = wm97xx_read_aux_adc(battery_wm, WM97XX_AUX_ID1);
return adc;
}
static int get_battery_status(struct power_supply *b)
{
int status;
if (is_usb_connected())
status = POWER_SUPPLY_STATUS_CHARGING;
else
status = POWER_SUPPLY_STATUS_DISCHARGING;
return status;
}
static int get_property(struct power_supply *b,
enum power_supply_property psp,
union power_supply_propval *val)
{
int rc = 0;
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
val->intval = get_battery_status(b);
break;
case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
val->intval = 0xfd0;
break;
case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
val->intval = 0xc00;
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
val->intval = get_battery_voltage();
break;
case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
val->intval = 100;
break;
default:
val->intval = -1;
rc = -1;
}
return rc;
};
static struct power_supply battery_ps = {
.name = "mioa701_battery",
.type = POWER_SUPPLY_TYPE_BATTERY,
.get_property = get_property,
.properties = battery_props,
.num_properties = ARRAY_SIZE(battery_props),
};
static int battery_probe(struct platform_device *pdev)
{
struct wm97xx *wm = platform_get_drvdata(pdev);
int rc;
battery_wm = wm;
rc = power_supply_register(NULL, &battery_ps);
if (rc)
dev_err(&pdev->dev,
"Could not register mioa701 battery -> %d\n", rc);
return rc;
}
static int battery_remove(struct platform_device *pdev)
{
battery_wm = NULL;
return 0;
}
static struct platform_driver mioa701_battery_driver = {
.driver = {
.name = "wm97xx-battery",
},
.probe = battery_probe,
.remove = battery_remove
};
static int __init mioa701_battery_init(void)
{
int rc;
rc = platform_driver_register(&mioa701_battery_driver);
if (rc)
printk(KERN_ERR "Could not register mioa701 battery driver\n");
return rc;
}
#else
static int __init mioa701_battery_init(void)
{
return 0;
}
#endif
/*
* Mio global
*/
/* Devices */
#define MIO_PARENT_DEV(var, strname, tparent, pdata) \
static struct platform_device var = { \
.name = strname, \
.id = -1, \
.dev = { \
.platform_data = pdata, \
.parent = tparent, \
}, \
};
#define MIO_SIMPLE_DEV(var, strname, pdata) \
MIO_PARENT_DEV(var, strname, NULL, pdata)
MIO_SIMPLE_DEV(mioa701_gpio_keys, "gpio-keys", &mioa701_gpio_keys_data)
MIO_PARENT_DEV(mioa701_backlight, "pwm-backlight", &pxa27x_device_pwm0.dev,
&mioa701_backlight_data);
MIO_SIMPLE_DEV(mioa701_led, "leds-gpio", &gpio_led_info)
MIO_SIMPLE_DEV(pxa2xx_pcm, "pxa2xx-pcm", NULL)
MIO_SIMPLE_DEV(pxa2xx_ac97, "pxa2xx-ac97", NULL)
MIO_PARENT_DEV(mio_wm9713_codec, "wm9713-codec", &pxa2xx_ac97.dev, NULL)
MIO_SIMPLE_DEV(mioa701_sound, "mioa701-wm9713", NULL)
MIO_SIMPLE_DEV(mioa701_board, "mioa701-board", NULL)
static struct platform_device *devices[] __initdata = {
&mioa701_gpio_keys,
&mioa701_backlight,
&mioa701_led,
&pxa2xx_pcm,
&pxa2xx_ac97,
&mio_wm9713_codec,
&mioa701_sound,
&power_dev,
&strataflash,
&mioa701_board
};
static void mioa701_machine_exit(void);
static void mioa701_poweroff(void)
{
mioa701_machine_exit();
gpio_set_value(GPIO18_POWEROFF, 1);
}
static void mioa701_restart(char c)
{
mioa701_machine_exit();
arm_machine_restart(c);
}
struct gpio_ress global_gpios[] = {
MIO_GPIO_OUT(GPIO9_CHARGE_nEN, 1, "Charger enable"),
MIO_GPIO_OUT(GPIO18_POWEROFF, 0, "Power Off"),
MIO_GPIO_OUT(GPIO87_LCD_POWER, 0, "LCD Power")
};
static void __init mioa701_machine_init(void)
{
PSLR = 0xff100000; /* SYSDEL=125ms, PWRDEL=125ms, PSLR_SL_ROD=1 */
PCFR = PCFR_DC_EN | PCFR_GPR_EN | PCFR_OPDE;
RTTR = 32768 - 1; /* Reset crazy WinCE value */
UP2OCR = UP2OCR_HXOE;
pxa2xx_mfp_config(ARRAY_AND_SIZE(mioa701_pin_config));
mio_gpio_request(ARRAY_AND_SIZE(global_gpios));
bootstrap_init();
set_pxa_fb_info(&mioa701_pxafb_info);
pxa_set_mci_info(&mioa701_mci_info);
pxa_set_keypad_info(&mioa701_keypad_info);
udc_init();
pm_power_off = mioa701_poweroff;
arm_pm_restart = mioa701_restart;
platform_add_devices(devices, ARRAY_SIZE(devices));
gsm_init();
mioa701_battery_init();
}
static void mioa701_machine_exit(void)
{
udc_exit();
bootstrap_exit();
gsm_exit();
}
MACHINE_START(MIOA701, "MIO A701")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.boot_params = 0xa0000100,
.map_io = &pxa_map_io,
.init_irq = &pxa27x_init_irq,
.init_machine = mioa701_machine_init,
.timer = &pxa_timer,
MACHINE_END
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