diff options
Diffstat (limited to 'drivers/media/rc')
-rw-r--r-- | drivers/media/rc/bpf-lirc.c | 5 | ||||
-rw-r--r-- | drivers/media/rc/lirc_dev.c | 7 | ||||
-rw-r--r-- | drivers/media/rc/rc-main.c | 80 |
3 files changed, 59 insertions, 33 deletions
diff --git a/drivers/media/rc/bpf-lirc.c b/drivers/media/rc/bpf-lirc.c index 0a0ce620e4a2..0f3417d161b8 100644 --- a/drivers/media/rc/bpf-lirc.c +++ b/drivers/media/rc/bpf-lirc.c @@ -35,11 +35,6 @@ static const struct bpf_func_proto rc_repeat_proto = { .arg1_type = ARG_PTR_TO_CTX, }; -/* - * Currently rc-core does not support 64-bit scancodes, but there are many - * known protocols with more than 32 bits. So, define the interface as u64 - * as a future-proof. - */ BPF_CALL_4(bpf_rc_keydown, u32*, sample, u32, protocol, u64, scancode, u32, toggle) { diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c index 9a8c1cf54ac4..583e4f32a0da 100644 --- a/drivers/media/rc/lirc_dev.c +++ b/drivers/media/rc/lirc_dev.c @@ -269,12 +269,7 @@ static ssize_t ir_lirc_transmit_ir(struct file *file, const char __user *buf, goto out_unlock; } - /* - * The scancode field in lirc_scancode is 64-bit simply - * to future-proof it, since there are IR protocols encode - * use more than 32 bits. For now only 32-bit protocols - * are supported. - */ + /* We only have encoders for 32-bit protocols. */ if (scan.scancode > U32_MAX || !rc_validate_scancode(scan.rc_proto, scan.scancode)) { ret = -EINVAL; diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c index 6f80c251f641..d7064d664d52 100644 --- a/drivers/media/rc/rc-main.c +++ b/drivers/media/rc/rc-main.c @@ -164,6 +164,41 @@ static struct rc_map_list empty_map = { }; /** + * scancode_to_u64() - converts scancode in &struct input_keymap_entry + * @ke: keymap entry containing scancode to be converted. + * @scancode: pointer to the location where converted scancode should + * be stored. + * + * This function is a version of input_scancode_to_scalar specialized for + * rc-core. + */ +static int scancode_to_u64(const struct input_keymap_entry *ke, u64 *scancode) +{ + switch (ke->len) { + case 1: + *scancode = *((u8 *)ke->scancode); + break; + + case 2: + *scancode = *((u16 *)ke->scancode); + break; + + case 4: + *scancode = *((u32 *)ke->scancode); + break; + + case 8: + *scancode = *((u64 *)ke->scancode); + break; + + default: + return -EINVAL; + } + + return 0; +} + +/** * ir_create_table() - initializes a scancode table * @dev: the rc_dev device * @rc_map: the rc_map to initialize @@ -285,13 +320,13 @@ static unsigned int ir_update_mapping(struct rc_dev *dev, /* Did the user wish to remove the mapping? */ if (new_keycode == KEY_RESERVED || new_keycode == KEY_UNKNOWN) { - dev_dbg(&dev->dev, "#%d: Deleting scan 0x%04x\n", + dev_dbg(&dev->dev, "#%d: Deleting scan 0x%04llx\n", index, rc_map->scan[index].scancode); rc_map->len--; memmove(&rc_map->scan[index], &rc_map->scan[index+ 1], (rc_map->len - index) * sizeof(struct rc_map_table)); } else { - dev_dbg(&dev->dev, "#%d: %s scan 0x%04x with key 0x%04x\n", + dev_dbg(&dev->dev, "#%d: %s scan 0x%04llx with key 0x%04x\n", index, old_keycode == KEY_RESERVED ? "New" : "Replacing", rc_map->scan[index].scancode, new_keycode); @@ -334,8 +369,7 @@ static unsigned int ir_update_mapping(struct rc_dev *dev, */ static unsigned int ir_establish_scancode(struct rc_dev *dev, struct rc_map *rc_map, - unsigned int scancode, - bool resize) + u64 scancode, bool resize) { unsigned int i; @@ -394,7 +428,7 @@ static int ir_setkeycode(struct input_dev *idev, struct rc_dev *rdev = input_get_drvdata(idev); struct rc_map *rc_map = &rdev->rc_map; unsigned int index; - unsigned int scancode; + u64 scancode; int retval = 0; unsigned long flags; @@ -407,7 +441,7 @@ static int ir_setkeycode(struct input_dev *idev, goto out; } } else { - retval = input_scancode_to_scalar(ke, &scancode); + retval = scancode_to_u64(ke, &scancode); if (retval) goto out; @@ -434,8 +468,7 @@ out: * * return: -ENOMEM if all keycodes could not be inserted, otherwise zero. */ -static int ir_setkeytable(struct rc_dev *dev, - const struct rc_map *from) +static int ir_setkeytable(struct rc_dev *dev, const struct rc_map *from) { struct rc_map *rc_map = &dev->rc_map; unsigned int i, index; @@ -466,7 +499,7 @@ static int ir_setkeytable(struct rc_dev *dev, static int rc_map_cmp(const void *key, const void *elt) { - const unsigned int *scancode = key; + const u64 *scancode = key; const struct rc_map_table *e = elt; if (*scancode < e->scancode) @@ -487,7 +520,7 @@ static int rc_map_cmp(const void *key, const void *elt) * return: index in the table, -1U if not found */ static unsigned int ir_lookup_by_scancode(const struct rc_map *rc_map, - unsigned int scancode) + u64 scancode) { struct rc_map_table *res; @@ -516,7 +549,7 @@ static int ir_getkeycode(struct input_dev *idev, struct rc_map_table *entry; unsigned long flags; unsigned int index; - unsigned int scancode; + u64 scancode; int retval; spin_lock_irqsave(&rc_map->lock, flags); @@ -524,7 +557,7 @@ static int ir_getkeycode(struct input_dev *idev, if (ke->flags & INPUT_KEYMAP_BY_INDEX) { index = ke->index; } else { - retval = input_scancode_to_scalar(ke, &scancode); + retval = scancode_to_u64(ke, &scancode); if (retval) goto out; @@ -538,7 +571,6 @@ static int ir_getkeycode(struct input_dev *idev, ke->keycode = entry->keycode; ke->len = sizeof(entry->scancode); memcpy(ke->scancode, &entry->scancode, sizeof(entry->scancode)); - } else if (!(ke->flags & INPUT_KEYMAP_BY_INDEX)) { /* * We do not really know the valid range of scancodes @@ -570,7 +602,7 @@ out: * * return: the corresponding keycode, or KEY_RESERVED */ -u32 rc_g_keycode_from_table(struct rc_dev *dev, u32 scancode) +u32 rc_g_keycode_from_table(struct rc_dev *dev, u64 scancode) { struct rc_map *rc_map = &dev->rc_map; unsigned int keycode; @@ -586,7 +618,7 @@ u32 rc_g_keycode_from_table(struct rc_dev *dev, u32 scancode) spin_unlock_irqrestore(&rc_map->lock, flags); if (keycode != KEY_RESERVED) - dev_dbg(&dev->dev, "%s: scancode 0x%04x keycode 0x%02x\n", + dev_dbg(&dev->dev, "%s: scancode 0x%04llx keycode 0x%02x\n", dev->device_name, scancode, keycode); return keycode; @@ -719,8 +751,11 @@ void rc_repeat(struct rc_dev *dev) spin_lock_irqsave(&dev->keylock, flags); - input_event(dev->input_dev, EV_MSC, MSC_SCAN, dev->last_scancode); - input_sync(dev->input_dev); + if (dev->last_scancode <= U32_MAX) { + input_event(dev->input_dev, EV_MSC, MSC_SCAN, + dev->last_scancode); + input_sync(dev->input_dev); + } if (dev->keypressed) { dev->keyup_jiffies = jiffies + timeout; @@ -743,7 +778,7 @@ EXPORT_SYMBOL_GPL(rc_repeat); * called with keylock held. */ static void ir_do_keydown(struct rc_dev *dev, enum rc_proto protocol, - u32 scancode, u32 keycode, u8 toggle) + u64 scancode, u32 keycode, u8 toggle) { bool new_event = (!dev->keypressed || dev->last_protocol != protocol || @@ -761,7 +796,8 @@ static void ir_do_keydown(struct rc_dev *dev, enum rc_proto protocol, if (new_event && dev->keypressed) ir_do_keyup(dev, false); - input_event(dev->input_dev, EV_MSC, MSC_SCAN, scancode); + if (scancode <= U32_MAX) + input_event(dev->input_dev, EV_MSC, MSC_SCAN, scancode); dev->last_protocol = protocol; dev->last_scancode = scancode; @@ -772,7 +808,7 @@ static void ir_do_keydown(struct rc_dev *dev, enum rc_proto protocol, /* Register a keypress */ dev->keypressed = true; - dev_dbg(&dev->dev, "%s: key down event, key 0x%04x, protocol 0x%04x, scancode 0x%08x\n", + dev_dbg(&dev->dev, "%s: key down event, key 0x%04x, protocol 0x%04x, scancode 0x%08llx\n", dev->device_name, keycode, protocol, scancode); input_report_key(dev->input_dev, keycode, 1); @@ -809,7 +845,7 @@ static void ir_do_keydown(struct rc_dev *dev, enum rc_proto protocol, * This routine is used to signal that a key has been pressed on the * remote control. */ -void rc_keydown(struct rc_dev *dev, enum rc_proto protocol, u32 scancode, +void rc_keydown(struct rc_dev *dev, enum rc_proto protocol, u64 scancode, u8 toggle) { unsigned long flags; @@ -840,7 +876,7 @@ EXPORT_SYMBOL_GPL(rc_keydown); * remote control. The driver must manually call rc_keyup() at a later stage. */ void rc_keydown_notimeout(struct rc_dev *dev, enum rc_proto protocol, - u32 scancode, u8 toggle) + u64 scancode, u8 toggle) { unsigned long flags; u32 keycode = rc_g_keycode_from_table(dev, scancode); |