diff options
Diffstat (limited to 'drivers/media/cec/cec-api.c')
| -rw-r--r-- | drivers/media/cec/cec-api.c | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/drivers/media/cec/cec-api.c b/drivers/media/cec/cec-api.c index 9d6c496f756c..ecc89d9a279b 100644 --- a/drivers/media/cec/cec-api.c +++ b/drivers/media/cec/cec-api.c @@ -46,12 +46,11 @@ static inline struct cec_devnode *cec_devnode_data(struct file *filp) static __poll_t cec_poll(struct file *filp, struct poll_table_struct *poll) { - struct cec_devnode *devnode = cec_devnode_data(filp); struct cec_fh *fh = filp->private_data; struct cec_adapter *adap = fh->adap; __poll_t res = 0; - if (!devnode->registered) + if (!cec_is_registered(adap)) return POLLERR | POLLHUP; mutex_lock(&adap->lock); if (adap->is_configured && @@ -354,6 +353,7 @@ static long cec_s_mode(struct cec_adapter *adap, struct cec_fh *fh, u32 mode; u8 mode_initiator; u8 mode_follower; + bool send_pin_event = false; long err = 0; if (copy_from_user(&mode, parg, sizeof(mode))) @@ -433,6 +433,19 @@ static long cec_s_mode(struct cec_adapter *adap, struct cec_fh *fh, } } + if (!err) { + bool old_mon_pin = fh->mode_follower == CEC_MODE_MONITOR_PIN; + bool new_mon_pin = mode_follower == CEC_MODE_MONITOR_PIN; + + if (old_mon_pin != new_mon_pin) { + send_pin_event = new_mon_pin; + if (new_mon_pin) + err = cec_monitor_pin_cnt_inc(adap); + else + cec_monitor_pin_cnt_dec(adap); + } + } + if (err) { mutex_unlock(&adap->lock); return err; @@ -440,11 +453,9 @@ static long cec_s_mode(struct cec_adapter *adap, struct cec_fh *fh, if (fh->mode_follower == CEC_MODE_FOLLOWER) adap->follower_cnt--; - if (fh->mode_follower == CEC_MODE_MONITOR_PIN) - adap->monitor_pin_cnt--; if (mode_follower == CEC_MODE_FOLLOWER) adap->follower_cnt++; - if (mode_follower == CEC_MODE_MONITOR_PIN) { + if (send_pin_event) { struct cec_event ev = { .flags = CEC_EVENT_FL_INITIAL_STATE, }; @@ -452,7 +463,6 @@ static long cec_s_mode(struct cec_adapter *adap, struct cec_fh *fh, ev.event = adap->cec_pin_is_high ? CEC_EVENT_PIN_CEC_HIGH : CEC_EVENT_PIN_CEC_LOW; cec_queue_event_fh(fh, &ev, 0); - adap->monitor_pin_cnt++; } if (mode_follower == CEC_MODE_EXCL_FOLLOWER || mode_follower == CEC_MODE_EXCL_FOLLOWER_PASSTHRU) { @@ -475,13 +485,12 @@ static long cec_s_mode(struct cec_adapter *adap, struct cec_fh *fh, static long cec_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { - struct cec_devnode *devnode = cec_devnode_data(filp); struct cec_fh *fh = filp->private_data; struct cec_adapter *adap = fh->adap; bool block = !(filp->f_flags & O_NONBLOCK); void __user *parg = (void __user *)arg; - if (!devnode->registered) + if (!cec_is_registered(adap)) return -ENODEV; switch (cmd) { @@ -608,16 +617,15 @@ static int cec_release(struct inode *inode, struct file *filp) if (fh->mode_follower == CEC_MODE_FOLLOWER) adap->follower_cnt--; if (fh->mode_follower == CEC_MODE_MONITOR_PIN) - adap->monitor_pin_cnt--; + cec_monitor_pin_cnt_dec(adap); if (fh->mode_follower == CEC_MODE_MONITOR_ALL) cec_monitor_all_cnt_dec(adap); mutex_unlock(&adap->lock); mutex_lock(&devnode->lock); list_del(&fh->list); - if (list_empty(&devnode->fhs) && - !adap->needs_hpd && - adap->phys_addr == CEC_PHYS_ADDR_INVALID) { + if (cec_is_registered(adap) && list_empty(&devnode->fhs) && + !adap->needs_hpd && adap->phys_addr == CEC_PHYS_ADDR_INVALID) { WARN_ON(adap->ops->adap_enable(adap, false)); } mutex_unlock(&devnode->lock); |