firmware: rockchip: update sip interface

[firefly-linux-kernel-4.4.55.git] / drivers / cir / bu92747guw_cir.c

diff --git a/drivers/cir/bu92747guw_cir.c b/drivers/cir/bu92747guw_cir.c
old mode 100755 (executable)
new mode 100644 (file)
index a402280..5362add
--- a/drivers/cir/bu92747guw_cir.c
+++ b/drivers/cir/bu92747guw_cir.c
@@ -34,7 +34,7 @@
 
 #include "bu92747guw_cir.h"
 
-#if 0
+#if 1
 #define BU92747_DBG(x...) printk(x)
 #else
 #define BU92747_DBG(x...)
@@ -59,19 +59,19 @@ static struct miscdevice bu92747guw_device;
 int repeat_flag=-1;
 int start_flag = 0;
 //mutex lock between remote and irda
-static DEFINE_MUTEX(bu92747_mutex);
-void bu92747_lock(void)
-{
-       mutex_lock(&bu92747_mutex);
-}
-void bu92747_unlock(void)
-{
-       mutex_unlock(&bu92747_mutex);
-}
 
 
 
 
+#ifdef CONFIG_RK_IRDA_UART
+extern int bu92747_try_lock(void);
+extern void bu92747_unlock(void);
+#else
+int bu92747_try_lock(void) {return 1;}
+void bu92747_unlock(void) {return;}
+#endif
+
+
 
 static int bu92747_cir_i2c_read_regs(struct i2c_client *client, u8 reg, u8 *buf, int len)
 {
@@ -380,8 +380,7 @@ static int bu92747_start(struct i2c_client *client)
 
 
        start_flag = 1;
-       //enable_irq(bu92747->irq);
-       //enable clk
+       bu92747->state = 0;
        bu92747_cir_i2c_read_regs(client, REG_SETTING0, reg_value, 1);
        reg_value[0] = reg_value[0]|0x01;
        bu92747_cir_i2c_set_regs(client, REG_SETTING0, reg_value, 1);
@@ -754,11 +753,21 @@ static int bu92747_open(struct inode *inode, struct file *file)
        struct i2c_client *client = container_of(bu92747guw_device.parent, struct i2c_client, dev);
        struct bu92747_data_info *bu92747 = (struct bu92747_data_info *)i2c_get_clientdata(client);
        struct bu92747guw_platform_data *pdata = bu92747->platdata;
-
+       int ret = 0;
        BU92747_DBG("line %d: enter %s\n", __LINE__, __FUNCTION__);
 
        printk("bu92747_open\n");
+
+
+       ret = bu92747_try_lock();
+       if (ret == 0){
+               printk("cannot get lock. Please close irda!\n");
+               return -2;
+       }
+       
        bu92747->state = 0;
+       start_flag = 0;
+       repeat_flag = -1;
 //     if (BU92747_OPEN == bu92747->state) 
 //             return -EBUSY;
 //     bu92747->state = BU92747_OPEN;
@@ -776,7 +785,7 @@ static int bu92747_open(struct inode *inode, struct file *file)
 
        //register init
        bu92747_cir_init_device(client, bu92747);
-       start_flag = -1;
+       start_flag = 0;
        BU92747_DBG("line %d: exit %s\n", __LINE__, __FUNCTION__);
 
        return 0;
@@ -789,6 +798,8 @@ static int bu92747_release(struct inode *inode, struct file *file)
        struct bu92747guw_platform_data *pdata = bu92747->platdata;
 
        BU92747_DBG("line %d: enter %s\n", __LINE__, __FUNCTION__);
+       smc0_write(REG_TRCR_ADDR, smc0_read(REG_TRCR_ADDR)|0x0040);
+       start_flag = -1;
 
        //power down
        if (pdata && pdata->cir_pwr_ctl) {
@@ -796,11 +807,76 @@ static int bu92747_release(struct inode *inode, struct file *file)
        }
        
 //     bu92747->state = BU92747_CLOSE;
+       bu92747_unlock();
+
+       BU92747_DBG("line %d: exit %s\n", __LINE__, __FUNCTION__);
+       
+       return 0;
+}
+
+#if  CONFIG_PM
+static int bu92747_suspend(struct i2c_client *i, pm_message_t mesg)
+{
+       struct i2c_client *client = container_of(bu92747guw_device.parent, struct i2c_client, dev);
+       struct bu92747_data_info *bu92747 = (struct bu92747_data_info *)i2c_get_clientdata(client);
+       struct bu92747guw_platform_data *pdata = bu92747->platdata;
 
+       BU92747_DBG("line %d: enter %s\n", __LINE__, __FUNCTION__);
+
+       if (start_flag == 0){
+               BU92747_DBG("realy suspend!\n");
+               disable_irq(bu92747->irq);
+               smc0_write(REG_TRCR_ADDR, smc0_read(REG_TRCR_ADDR)|0x0040);
+               start_flag = 0;
+               repeat_flag = -1;
+               
+               if (pdata && pdata->cir_pwr_ctl) {
+                       pdata->cir_pwr_ctl(0);
+               }
+       }
        BU92747_DBG("line %d: exit %s\n", __LINE__, __FUNCTION__);
+
+       return 0;
+}
+
+static int bu92747_resume(struct i2c_client *i)
+{
+       struct i2c_client *client = container_of(bu92747guw_device.parent, struct i2c_client, dev);
+       struct bu92747_data_info *bu92747 = (struct bu92747_data_info *)i2c_get_clientdata(client);
+       struct bu92747guw_platform_data *pdata = bu92747->platdata;
        
+       BU92747_DBG("line %d: enter %s\n", __LINE__, __FUNCTION__);
+
+       if (start_flag == 0){
+               BU92747_DBG("realy resume!\n");
+               enable_irq(bu92747->irq);
+               bu92747->state = 0;
+
+               //power on
+               if (pdata && pdata->cir_pwr_ctl) {
+                       pdata->cir_pwr_ctl(1);
+               }
+                       
+               //switch to remote control, mcr, ec_en=1,rc_mode=1
+               smc0_write(REG_MCR_ADDR, smc0_read(REG_MCR_ADDR)|(3<<10));
+               //set irda pwdownpin = 0
+               smc0_write(REG_TRCR_ADDR, smc0_read(REG_TRCR_ADDR)&0xffbf);
+               BU92747_DBG("irda power down pin = %d\n", gpio_get_value(RK29_PIN5_PA7));
+
+               //register init
+               bu92747_cir_init_device(client, bu92747);
+       }
+       
+       printk("line %d: exit %s\n", __LINE__, __FUNCTION__);
+
+
        return 0;
+       
 }
+#else
+#define bu92747_suspend NULL
+#define bu92747_resume NULL
+#endif
 
 static struct file_operations bu92747_fops = {
        .owner = THIS_MODULE,
@@ -841,7 +917,8 @@ static int __devinit bu92747_cir_probe(struct i2c_client *client, const struct i
        bu92747->platdata = pdata;
        bu92747->client = client;
        i2c_set_clientdata(client, bu92747);
-       bu92747->state = BU92747_CLOSE;
+       bu92747->state = 0;
+       start_flag = -1;
 
        //register device
        bu92747guw_device.parent = &client->dev;
@@ -909,7 +986,7 @@ static int __devexit bu92747_cir_remove(struct i2c_client *client)
        struct bu92747guw_platform_data *pdata = bu92747->platdata;
 
        printk(" cir_remove \n");
-       start_flag = 0;
+       start_flag = -1;
        free_irq(bu92747->irq, bu92747);
        gpio_free(pdata->intr_pin);
     misc_deregister(&bu92747guw_device);
@@ -933,6 +1010,10 @@ static struct i2c_driver bu92747_cir_driver = {
        .probe          = bu92747_cir_probe,
        .remove         = __devexit_p(bu92747_cir_remove),
        .id_table       = bu92747_cir_id,
+#ifdef CONFIG_PM
+       .suspend = bu92747_suspend,
+       .resume = bu92747_resume,
+#endif
 };
 
 static int __init bu92747_cir_init(void)