diff options
Diffstat (limited to 'drivers/media/video/samsung/tvout/s5p_tvout_hpd.c')
| -rw-r--r-- | drivers/media/video/samsung/tvout/s5p_tvout_hpd.c | 80 |
1 files changed, 71 insertions, 9 deletions
diff --git a/drivers/media/video/samsung/tvout/s5p_tvout_hpd.c b/drivers/media/video/samsung/tvout/s5p_tvout_hpd.c index 4f35a91..1c98453 100644 --- a/drivers/media/video/samsung/tvout/s5p_tvout_hpd.c +++ b/drivers/media/video/samsung/tvout/s5p_tvout_hpd.c @@ -67,6 +67,12 @@ struct hpd_struct { #endif }; +#ifdef CONFIG_HDMI_CONTROLLED_BY_EXT_IC +static work_func_t ext_ic_control_func(void) ; +static DECLARE_DELAYED_WORK(ext_ic_control_dwork, + (work_func_t)ext_ic_control_func); +#endif + static struct hpd_struct hpd_struct; static int last_hpd_state; @@ -81,6 +87,10 @@ static ssize_t s5p_hpd_read(struct file *file, char __user *buffer, static unsigned int s5p_hpd_poll(struct file *file, poll_table *wait); static long s5p_hpd_ioctl(struct file *file, unsigned int cmd, unsigned long arg); +#ifdef CONFIG_SAMSUNG_WORKAROUND_HPD_GLANCE +void mhl_hpd_handler(bool onoff); +bool (*is_mhl_power_state_on)(void); +#endif static const struct file_operations hpd_fops = { .owner = THIS_MODULE, @@ -139,6 +149,7 @@ static void s5p_hpd_kobject_uevent(void) if (hpd_state) { if (last_uevent_state == -1 || last_uevent_state == HPD_LO) { #ifdef CONFIG_HDMI_CONTROLLED_BY_EXT_IC + HPDPRINTK("ext_ic power ON\n"); hpd_struct.ext_ic_control(true); msleep(20); #endif @@ -154,9 +165,13 @@ static void s5p_hpd_kobject_uevent(void) KOBJ_CHANGE, envp); #endif HPDPRINTK("[HDMI] HPD event -connect!!!\n"); - on_start_process = true; + if (atomic_read(&hdmi_status) == HDMI_OFF) { + on_start_process = true; + } else { + on_start_process = false; + } HPDIFPRINTK("%s() on_start_process(%d)\n", - __func__, on_start_process); + __func__, on_start_process); } last_uevent_state = HPD_HI; } else { @@ -176,10 +191,14 @@ static void s5p_hpd_kobject_uevent(void) KOBJ_CHANGE, envp); #endif HPDPRINTK("[HDMI] HPD event -disconnet!!!\n"); - on_stop_process = true; -#ifdef CONFIG_HDMI_CONTROLLED_BY_EXT_IC - hpd_struct.ext_ic_control(false); -#endif + if (atomic_read(&hdmi_status) == HDMI_ON) { + on_stop_process = true; + } else { + on_stop_process = false; + } + HPDIFPRINTK("%s() on_stop_process(%d)\n", + __func__, on_stop_process); + } last_uevent_state = HPD_LO; } @@ -233,9 +252,16 @@ static unsigned int s5p_hpd_poll(struct file *file, poll_table * wait) void hdmi_send_audio_ch_num( int supported_ch_num, struct switch_dev *p_audio_ch_switch) { - printk(KERN_INFO "%s() hdmi_send_audio_ch_num :: " - "HDMI Audio supported ch = %d", - __func__, supported_ch_num); + if (last_uevent_state == HPD_LO) { + printk(KERN_INFO "[WARNING] %s() " + "HDMI Audio ch = %d but not send\n", + __func__, supported_ch_num); + return; + } else + printk(KERN_INFO "%s() " + "HDMI Audio ch = %d\n", + __func__, supported_ch_num); + p_audio_ch_switch->state = 0; switch_set_state(p_audio_ch_switch, (int)supported_ch_num); } @@ -366,7 +392,16 @@ static int s5p_hpd_irq_eint(int irq) atomic_set(&poll_state, 1); last_hpd_state = HPD_LO; +#ifdef CONFIG_SAMSUNG_WORKAROUND_HPD_GLANCE + if (is_mhl_power_state_on != NULL) + if (!is_mhl_power_state_on()) + mhl_hpd_handler(false); +#endif +#ifdef CONFIG_HDMI_CONTROLLED_BY_EXT_IC + schedule_delayed_work(&ext_ic_control_dwork , + msecs_to_jiffies(1000)); +#endif wake_up_interruptible(&hpd_struct.waitq); } schedule_work(&hpd_work); @@ -438,6 +473,15 @@ static int s5p_hpd_irq_hdmi(int irq) atomic_set(&poll_state, 1); last_hpd_state = HPD_LO; +#ifdef CONFIG_SAMSUNG_WORKAROUND_HPD_GLANCE + if (is_mhl_power_state_on != NULL) + if (!is_mhl_power_state_on()) + mhl_hpd_handler(false); +#endif +#ifdef CONFIG_HDMI_CONTROLLED_BY_EXT_IC + schedule_delayed_work(&ext_ic_control_dwork , + msecs_to_jiffies(1000)); +#endif wake_up_interruptible(&hpd_struct.waitq); } @@ -474,6 +518,20 @@ static irqreturn_t s5p_hpd_irq_handler(int irq, void *dev_id) return ret; } +#ifdef CONFIG_HDMI_CONTROLLED_BY_EXT_IC +static work_func_t ext_ic_control_func(void) +{ + if (!hpd_struct.read_gpio()) { + hpd_struct.ext_ic_control(false); + HPDPRINTK("HDMI_EXT_IC Power Off\n"); + } else { + HPDPRINTK("HDMI_EXT_IC Delay work do nothing\n"); + } + return 0; +} +#endif + + #ifdef CONFIG_SAMSUNG_WORKAROUND_HPD_GLANCE static irqreturn_t s5p_hpd_irq_default_handler(int irq, void *dev_id) { @@ -566,6 +624,9 @@ static int __devinit s5p_hpd_probe(struct platform_device *pdev) if (hpd_struct.read_gpio()) { atomic_set(&hpd_struct.state, HPD_HI); last_hpd_state = HPD_HI; +#ifdef CONFIG_HDMI_CONTROLLED_BY_EXT_IC + hpd_struct.ext_ic_control(true); +#endif } else { atomic_set(&hpd_struct.state, HPD_LO); last_hpd_state = HPD_LO; @@ -575,6 +636,7 @@ static int __devinit s5p_hpd_probe(struct platform_device *pdev) hpd_struct.hpd_switch.name = "hdmi"; switch_dev_register(&hpd_struct.hpd_switch); #endif + switch_set_state(&hpd_struct.hpd_switch, last_hpd_state); irq_set_irq_type(hpd_struct.irq_n, IRQ_TYPE_EDGE_BOTH); ret = request_irq(hpd_struct.irq_n, (irq_handler_t) s5p_hpd_irq_handler, |