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#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/i2c.h>
#include <linux/irq.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/platform_device.h>
#include <linux/fs.h>
#include <linux/uaccess.h>
#include <linux/miscdevice.h>
#include <linux/circ_buf.h>
#include <linux/interrupt.h>
#include <linux/miscdevice.h>
#include <mach/iomux.h>
#include <mach/gpio.h>
//#include <mach/spi_fpga.h>
#include <linux/delay.h>
#include <linux/poll.h>
#include <linux/wait.h>
//#include <linux/android_power.h>
//#include <asm/arch/gpio_extend.h>
#include <linux/workqueue.h>
#include <linux/mtk23d.h>
#include <linux/wakelock.h>
#include "../mtd/rknand/api_flash.h"
#include <linux/slab.h>
MODULE_LICENSE("GPL");
#define DEBUG
#ifdef DEBUG
#define MODEMDBG(x...) printk(x)
#else
#define MODEMDBG(fmt,argss...)
#endif
#define MTK23D_POWEROFF 0X00
#define MTK23D_RESET 0x01
#define MTK23D_POWERON 0x02
#define MTK23D_POWER_HIGH 0x03
#define MTK23D_IMEI_READ 0x04
//#define BP_POW_EN TCA6424_P02
//#define BP_STATUS RK2818_PIN_PH7 //input high bp sleep
//#define AP_STATUS RK2818_PIN_PA4 //output high ap sleep
//#define BP_RESET TCA6424_P11 //Ryan
//#define AP_BP_WAKEUP RK2818_PIN_PF5 //output AP wake up BP used rising edge
//#define BP_AP_WAKEUP RK2818_PIN_PE0 //input BP wake up AP
static bool bpstatus_irq_enable = false;
static bool wakelock_inited;
static struct wake_lock mtk23d_wakelock;
#define SLEEP 1
#define READY 0
//struct modem_dev *mt6223d_data = NULL;
struct rk2818_23d_data *gpdata = NULL;
static int rk29_uart_to_gpio(int uart_id)
{
if(uart_id == 3) {
rk29_mux_api_set(GPIO2B3_UART3SOUT_NAME, GPIO2L_GPIO2B3);
rk29_mux_api_set(GPIO2B2_UART3SIN_NAME, GPIO2L_GPIO2B2);
gpio_request(RK29_PIN2_PB3, NULL);
gpio_request(RK29_PIN2_PB2, NULL);
gpio_direction_output(RK29_PIN2_PB3, GPIO_LOW);
gpio_direction_output(RK29_PIN2_PB2, GPIO_LOW);
}
else if(uart_id == 2) {
rk29_mux_api_set(GPIO2B1_UART2SOUT_NAME, GPIO2L_GPIO2B1);
rk29_mux_api_set(GPIO2B0_UART2SIN_NAME, GPIO2L_GPIO2B0);
gpio_request(RK29_PIN2_PB1, NULL);
gpio_request(RK29_PIN2_PB0, NULL);
gpio_direction_output(RK29_PIN2_PB1, GPIO_LOW);
gpio_direction_output(RK29_PIN2_PB0, GPIO_LOW);
}
else if(uart_id == 1) {
rk29_mux_api_set(GPIO2A5_UART1SOUT_NAME, GPIO2L_GPIO2A5);
rk29_mux_api_set(GPIO2A4_UART1SIN_NAME, GPIO2L_GPIO2A4);
gpio_request(RK29_PIN2_PA5, NULL);
gpio_request(RK29_PIN2_PA4, NULL);
gpio_direction_output(RK29_PIN2_PA5, GPIO_LOW);
gpio_direction_output(RK29_PIN2_PA4, GPIO_LOW);
}
else if(uart_id == 0){
rk29_mux_api_set(GPIO1B7_UART0SOUT_NAME, GPIO1L_GPIO1B7);
gpio_request(RK29_PIN1_PB7, NULL);
gpio_direction_output(RK29_PIN1_PB7,GPIO_LOW);
gpio_pull_updown(RK29_PIN1_PB7, PullDisable); // 下拉禁止
rk29_mux_api_set(GPIO1B6_UART0SIN_NAME, GPIO1L_GPIO1B6);
gpio_request(RK29_PIN1_PB6, NULL);
gpio_direction_output(RK29_PIN1_PB6,GPIO_LOW);
gpio_pull_updown(RK29_PIN1_PB6, PullDisable); // 下拉禁止
rk29_mux_api_set(GPIO1C1_UART0RTSN_SDMMC1WRITEPRT_NAME, GPIO1H_GPIO1C1);
gpio_request(RK29_PIN1_PC1, NULL);
gpio_direction_output(RK29_PIN1_PC1,GPIO_LOW);
rk29_mux_api_set(GPIO1C0_UART0CTSN_SDMMC1DETECTN_NAME, GPIO1H_GPIO1C0);
gpio_request(RK29_PIN1_PC0, NULL);
//gpio_direction_input(RK29_PIN1_PC0);
gpio_direction_output(RK29_PIN1_PC0,GPIO_LOW);
}
return 0;
}
static int rk29_gpio_to_uart(int uart_id)
{
if(uart_id == 3) {
rk29_mux_api_set(GPIO2B3_UART3SOUT_NAME, GPIO2L_UART3_SOUT);
rk29_mux_api_set(GPIO2B2_UART3SIN_NAME, GPIO2L_UART3_SIN);
gpio_request(RK29_PIN2_PB3, NULL);
gpio_request(RK29_PIN2_PB2, NULL);
gpio_direction_output(RK29_PIN2_PB3, GPIO_HIGH);
gpio_direction_output(RK29_PIN2_PB2, GPIO_HIGH);
}
else if(uart_id == 2) {
rk29_mux_api_set(GPIO2B1_UART2SOUT_NAME, GPIO2L_UART2_SOUT);
rk29_mux_api_set(GPIO2B0_UART2SIN_NAME, GPIO2L_UART2_SIN);
gpio_request(RK29_PIN2_PB1, NULL);
gpio_request(RK29_PIN2_PB0, NULL);
gpio_direction_output(RK29_PIN2_PB1, GPIO_HIGH);
gpio_direction_output(RK29_PIN2_PB0, GPIO_HIGH);
}
else if(uart_id == 1) {
rk29_mux_api_set(GPIO2A5_UART1SOUT_NAME, GPIO2L_UART1_SOUT);
rk29_mux_api_set(GPIO2A4_UART1SIN_NAME, GPIO2L_UART1_SIN);
gpio_request(RK29_PIN2_PA5, NULL);
gpio_request(RK29_PIN2_PA4, NULL);
gpio_direction_output(RK29_PIN2_PA5, GPIO_HIGH);
gpio_direction_output(RK29_PIN2_PA4, GPIO_HIGH);
}
else if(uart_id == 0){
rk29_mux_api_set(GPIO1B7_UART0SOUT_NAME, GPIO1L_UART0_SOUT);
rk29_mux_api_set(GPIO1B6_UART0SIN_NAME, GPIO1L_UART0_SIN);
rk29_mux_api_set(GPIO1C1_UART0RTSN_SDMMC1WRITEPRT_NAME, GPIO1H_UART0_RTS_N);
rk29_mux_api_set(GPIO1C0_UART0CTSN_SDMMC1DETECTN_NAME, GPIO1H_UART0_CTS_N);
}
return 0;
}
/*static int get_bp_statue(struct platform_device *pdev)
{
struct rk2818_23d_data *pdata = pdev->dev.platform_data;
if(gpio_get_value(pdata->bp_statue))
return SLEEP;
else
return READY;
}*/
static void ap_sleep(struct platform_device *pdev)
{
struct rk2818_23d_data *pdata = pdev->dev.platform_data;
MODEMDBG("ap sleep!\n");
gpio_set_value(pdata->ap_statue,GPIO_HIGH);
}
static void ap_wakeup(struct platform_device *pdev)
{
struct rk2818_23d_data *pdata = pdev->dev.platform_data;
MODEMDBG("ap wakeup!\n");
gpio_set_value(pdata->ap_statue,GPIO_LOW);
}
/* */
static void ap_wakeup_bp(struct platform_device *pdev, int wake)//low to wakeup bp
{
struct rk2818_23d_data *pdata = pdev->dev.platform_data;
//struct modem_dev *mt6223d_data = platform_get_drvdata(pdev);
MODEMDBG("ap_wakeup_bp\n");
gpio_set_value(pdata->ap_bp_wakeup, wake); // phc
//gpio_set_value(RK2818_PIN_PF5, wake);
}
static void bpwakeup_work_func_work(struct work_struct *work)
{
//struct modem_dev *bdata = container_of(work, struct modem_dev, work);
MODEMDBG("%s\n", __FUNCTION__);
}
/*
static irqreturn_t bpwakeup_work_func(int irq, void *data)
{
struct modem_dev *mt6223d_data = (struct modem_dev *)data;
MODEMDBG("bpwakeup_work_func\n");
schedule_work(&mt6223d_data->work);
return IRQ_HANDLED;
}
static irqreturn_t bp_apwakeup_work_func(int irq, void *data)
{
//struct modem_dev *dev = &mtk23d_misc;
MODEMDBG("bp_apwakeup_work_func\n");
//wake_up_interruptible(&dev->wakeup);
return IRQ_HANDLED;
}
*/
static irqreturn_t BBwakeup_isr(int irq, void *dev_id)
{
//struct rk2818_23d_data *pdata = dev_id;
MODEMDBG("%s \n", __FUNCTION__);
//if(irq != gpio_to_irq(RK29_PIN1_PC0))
//{
// printk("irq != gpio_to_irq(RK29_PIN1_PC0) \n");
// return IRQ_NONE;
//}
// disable_irq_wake(irq);
if(bpstatus_irq_enable == true)
{
MODEMDBG("mtk23d_wakelock 3s \n");
wake_lock_timeout(&mtk23d_wakelock, 3 * HZ);
}
return IRQ_HANDLED;
}
int modem_poweron_off(int on_off)
{
struct rk2818_23d_data *pdata = gpdata;
int error = 0, irq = 0;
if(on_off)
{
printk("modem_poweron\n");
gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH); // power on enable
mdelay(300);
gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_HIGH:GPIO_LOW); // release reset
msleep(3000);
gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW); // power on relase
rk29_gpio_to_uart(0);
gpio_direction_input(pdata->bp_statue);
if(pdata->bp_ap_wakeup) // SDK板中,该口没有引出
gpio_direction_input(pdata->bp_ap_wakeup);
/* 初始化BP唤醒AP的功能 */
wakelock_inited = false;
irq = gpio_to_irq(pdata->bp_statue);
if (irq < 0) {
printk("can't get pdata->bp_statue irq \n");
}
else
{
error = request_irq(irq, BBwakeup_isr,IRQF_TRIGGER_FALLING, "mtk23d", pdata);
if (error) {
printk("mtk23d_probe bp_statue request_irq error!!! \n");
}
}
if (!wakelock_inited) {
wake_lock_init(&mtk23d_wakelock, WAKE_LOCK_SUSPEND, "23d_resume");
wakelock_inited = true;
}
}
else
{
printk("modem_poweroff\n");
rk29_uart_to_gpio(0);
gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
msleep(2500);
gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW);
msleep(500);
gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_LOW:GPIO_HIGH);
}
return 0;
}
static int power_on =1;
static int mtk23d_open(struct inode *inode, struct file *file)
{
struct rk2818_23d_data *pdata = gpdata;
MODEMDBG("modem_open\n");
if(power_on)
{
power_on = 0;
modem_poweron_off(1);
}
device_init_wakeup(pdata->dev, 1);
return 0;
}
static int mtk23d_release(struct inode *inode, struct file *file)
{
MODEMDBG("mtk23d_release\n");
//gpio_free(pdata->bp_power);
return 0;
}
//extern char imei_value[16]; // phc, no find 'imei_value' in rk29 project
//char imei_value[16] = {0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5};
static long mtk23d_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct rk2818_23d_data *pdata = gpdata;
int ret;
void __user *argp = (void __user *)arg;
char SectorBuffer[512];
printk("mtk23d_ioctl\n");
ret = down_interruptible(&pdata->power_sem);
if (ret < 0) {
printk("%s: down power_sem error ret = %d\n", __func__, ret);
return ret;
}
switch(cmd)
{
case MTK23D_POWEROFF:
printk("MTK23D_POWEROFF\n");
rk29_uart_to_gpio(0);
gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
msleep(2500);
gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW);
msleep(500);
gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_LOW:GPIO_HIGH);
break;
case MTK23D_RESET:
printk("MTK23D_RESET\n");
/****power off 23d and uart to gpio***/
rk29_uart_to_gpio(0);
gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
msleep(2500);
gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW);
msleep(500);
gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_LOW:GPIO_HIGH);
/****power on 23d***/
msleep(100);
gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
rk29_gpio_to_uart(0);
msleep(300);
gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_HIGH:GPIO_LOW);
msleep(2500);
gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW);
break;
case MTK23D_POWERON:
/****power on 23d***/
printk("MTK23D_POWERON\n");
gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_LOW:GPIO_HIGH);
msleep(100);
gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
rk29_gpio_to_uart(0);
msleep(300);
gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_HIGH:GPIO_LOW);
msleep(2500);
gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW);
break;
case MTK23D_IMEI_READ:
printk("MTK23D_IMEI_READ\n");
GetSNSectorInfo(SectorBuffer); // phc,20110624
if(copy_to_user(argp, &(SectorBuffer[451]), 16)) // IMEI后从451偏移开始的16bytes,第一个byte为长度固定为15
{
printk("ERROR: copy_to_user---%s\n", __FUNCTION__);
up(&pdata->power_sem);
return -EFAULT;
}
//printk("IMEI:%d %d %d %d\n", SectorBuffer[451], SectorBuffer[452], SectorBuffer[453], SectorBuffer[454]);
break;
default:
break;
}
up(&pdata->power_sem);
return 0;
}
static struct file_operations mtk23d_fops = {
.owner = THIS_MODULE,
.open = mtk23d_open,
.release = mtk23d_release,
.unlocked_ioctl = mtk23d_ioctl
};
static struct miscdevice mtk23d_misc = {
.minor = MISC_DYNAMIC_MINOR,
.name = MODEM_NAME,
.fops = &mtk23d_fops
};
static int mtk23d_probe(struct platform_device *pdev)
{
struct rk2818_23d_data *pdata = gpdata = pdev->dev.platform_data;
struct modem_dev *mt6223d_data = NULL;
int result=1;
MODEMDBG("mtk23d_probe\n");
//pdata->io_init();
pdata->dev = &pdev->dev;
mt6223d_data = kzalloc(sizeof(struct modem_dev), GFP_KERNEL);
if(NULL == mt6223d_data)
{
printk("failed to request mt6223d_data\n");
goto err6;
}
platform_set_drvdata(pdev, mt6223d_data);
result = gpio_request(pdata->bp_statue, "mtk23d");
if (result) {
printk("failed to request BP_STATUS gpio\n");
goto err5;
}
result = gpio_request(pdata->ap_statue, "mtk23d");
if (result) {
printk("failed to request AP_STATUS gpio\n");
goto err4;
}
result = gpio_request(pdata->ap_bp_wakeup, "mtk23d");
if (result) {
printk("failed to request AP_BP_WAKEUP gpio\n");
goto err3;
}
result = gpio_request(pdata->bp_reset, "mtk23d");
if (result) {
printk("failed to request BP_RESET gpio\n");
goto err2;
}
result = gpio_request(pdata->bp_power, "mtk23d");
if (result) {
printk("failed to request BP_POW_EN gpio\n");
goto err1;
}
if(pdata->bp_ap_wakeup) // SDK板中,该口没有引出
{
result = gpio_request(pdata->bp_ap_wakeup, "mtk23d");
if (result) {
printk("failed to request BP_AP_WAKEUP gpio\n");
goto err0;
}
}
#if 1 // GPIO初始化,并且防止漏电
rk29_uart_to_gpio(0);
/***power off 23d***/
gpio_direction_output(pdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
gpio_direction_output(pdata->ap_statue, GPIO_LOW);
gpio_direction_output(pdata->ap_bp_wakeup, GPIO_LOW);
//gpio_direction_output(pdata->bp_statue,GPIO_LOW);
gpio_direction_input(pdata->bp_statue);
if(pdata->bp_ap_wakeup) // SDK板中,该口没有引出
{
//gpio_direction_output(pdata->bp_ap_wakeup,GPIO_LOW);
gpio_direction_input(pdata->bp_ap_wakeup);
}
/*复位BP*/
gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_LOW:GPIO_HIGH);
//mdelay(200);
//gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_HIGH:GPIO_LOW);
#endif
INIT_WORK(&mt6223d_data->work, bpwakeup_work_func_work);
sema_init(&pdata->power_sem,1);
power_on = 1;
result = misc_register(&mtk23d_misc);
if(result)
{
MODEMDBG("misc_register err\n");
}
MODEMDBG("mtk23d_probe ok\n");
return result;
err0:
cancel_work_sync(&mt6223d_data->work);
gpio_free(pdata->bp_ap_wakeup);
err1:
gpio_free(pdata->bp_power);
err2:
gpio_free(pdata->bp_reset);
err3:
gpio_free(pdata->ap_bp_wakeup);
err4:
gpio_free(pdata->ap_statue);
err5:
gpio_free(pdata->bp_statue);
err6:
kfree(mt6223d_data);
return result;
}
int mtk23d_suspend(struct platform_device *pdev, pm_message_t state)
{
int irq;
struct rk2818_23d_data *pdata = pdev->dev.platform_data;
MODEMDBG("%s \n", __FUNCTION__);
//enable_irq_wake(irq);
ap_sleep(pdev);
ap_wakeup_bp(pdev, 0);
irq = gpio_to_irq(pdata->bp_statue);
if (irq < 0) {
printk("can't get pdata->bp_statue irq \n");
}
else
{
printk("enable pdata->bp_statue irq_wake!! \n");
bpstatus_irq_enable = true;
enable_irq_wake(irq);
}
return 0;
}
int mtk23d_resume(struct platform_device *pdev)
{
struct rk2818_23d_data *pdata = pdev->dev.platform_data;
int irq = 0;
MODEMDBG("%s \n", __FUNCTION__);
irq = gpio_to_irq(pdata->bp_statue);
if(irq)
{
printk("disable pdata->bp_statue irq_wake!! \n");
bpstatus_irq_enable = false;
disable_irq_wake(irq);
}
ap_wakeup(pdev);
ap_wakeup_bp(pdev, 1);
return 0;
}
void mtk23d_shutdown(struct platform_device *pdev)
{
struct rk2818_23d_data *pdata = pdev->dev.platform_data;
struct modem_dev *mt6223d_data = platform_get_drvdata(pdev);
MODEMDBG("%s \n", __FUNCTION__);
modem_poweron_off(0); // power down
cancel_work_sync(&mt6223d_data->work);
gpio_free(pdata->bp_ap_wakeup);
gpio_free(pdata->bp_power);
gpio_free(pdata->bp_reset);
gpio_free(pdata->ap_bp_wakeup);
gpio_free(pdata->ap_statue);
gpio_free(pdata->bp_statue);
kfree(mt6223d_data);
}
static struct platform_driver mtk23d_driver = {
.probe = mtk23d_probe,
.shutdown = mtk23d_shutdown,
.suspend = mtk23d_suspend,
.resume = mtk23d_resume,
.driver = {
.name = "mtk23d",
.owner = THIS_MODULE,
},
};
static int __init mtk23d_init(void)
{
//MODEMDBG("mtk23d_init ret=%d\n");
return platform_driver_register(&mtk23d_driver);
}
static void __exit mtk23d_exit(void)
{
MODEMDBG("mtk23d_exit\n");
platform_driver_unregister(&mtk23d_driver);
}
module_init(mtk23d_init);
//late_initcall_sync(mtk23d_init);
module_exit(mtk23d_exit);