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[media] rc-core: don't treat dev->rc_map.rc_type as a bitmap

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store_protocols() treats dev->rc_map.rc_type as a bitmap which is wrong for
two reasons. First of all, it is pretty bogus to change the protocol type of
the keymap just because the hardware has been asked to decode a different
protocol.
Second, dev->rc_map.rc_type is an enum (i.e. a single protocol) as pointed
out by James Hogan <james.hogan@imgtec.com>.
Fix both issues by introducing a separate enabled_protocols member to
struct rc_dev.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
David Härdeman 2013-03-06 16:52:05 -03:00 committed by Mauro Carvalho Chehab
parent efa914d7d0
commit 9719afae5e
14 changed files with 28 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/media/i2c/ir-kbd-i2c.c
View File

@ -423,6 +423,7 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
*/
rc->map_name = ir->ir_codes;
rc->allowed_protos = rc_type;
rc->enabled_protocols = rc_type;
if (!rc->driver_name)
rc->driver_name = MODULE_NAME;

2
drivers/media/rc/ir-jvc-decoder.c
View File

@ -47,7 +47,7 @@ static int ir_jvc_decode(struct rc_dev *dev, struct ir_raw_event ev)
{
struct jvc_dec *data = &dev->raw->jvc;
if (!(dev->raw->enabled_protocols & RC_BIT_JVC))
if (!(dev->enabled_protocols & RC_BIT_JVC))
return 0;
if (!is_timing_event(ev)) {

2
drivers/media/rc/ir-lirc-codec.c
View File

@ -35,7 +35,7 @@ static int ir_lirc_decode(struct rc_dev *dev, struct ir_raw_event ev)
struct lirc_codec *lirc = &dev->raw->lirc;
int sample;
if (!(dev->raw->enabled_protocols & RC_BIT_LIRC))
if (!(dev->enabled_protocols & RC_BIT_LIRC))
return 0;
if (!dev->raw->lirc.drv || !dev->raw->lirc.drv->rbuf)

2
drivers/media/rc/ir-mce_kbd-decoder.c
View File

@ -216,7 +216,7 @@ static int ir_mce_kbd_decode(struct rc_dev *dev, struct ir_raw_event ev)
u32 scancode;
unsigned long delay;
if (!(dev->raw->enabled_protocols & RC_BIT_MCE_KBD))
if (!(dev->enabled_protocols & RC_BIT_MCE_KBD))
return 0;
if (!is_timing_event(ev)) {

2
drivers/media/rc/ir-nec-decoder.c
View File

@ -52,7 +52,7 @@ static int ir_nec_decode(struct rc_dev *dev, struct ir_raw_event ev)
u8 address, not_address, command, not_command;
bool send_32bits = false;
if (!(dev->raw->enabled_protocols & RC_BIT_NEC))
if (!(dev->enabled_protocols & RC_BIT_NEC))
return 0;
if (!is_timing_event(ev)) {

2
drivers/media/rc/ir-raw.c
View File

@ -256,7 +256,7 @@ int ir_raw_event_register(struct rc_dev *dev)
return -ENOMEM;
dev->raw->dev = dev;
dev->raw->enabled_protocols = ~0;
dev->enabled_protocols = ~0;
rc = kfifo_alloc(&dev->raw->kfifo,
sizeof(struct ir_raw_event) * MAX_IR_EVENT_SIZE,
GFP_KERNEL);

6
drivers/media/rc/ir-rc5-decoder.c
View File

@ -52,7 +52,7 @@ static int ir_rc5_decode(struct rc_dev *dev, struct ir_raw_event ev)
u8 toggle;
u32 scancode;
if (!(dev->raw->enabled_protocols & (RC_BIT_RC5 | RC_BIT_RC5X)))
if (!(dev->enabled_protocols & (RC_BIT_RC5 | RC_BIT_RC5X)))
return 0;
if (!is_timing_event(ev)) {
@ -128,7 +128,7 @@ again:
if (data->wanted_bits == RC5X_NBITS) {
/* RC5X */
u8 xdata, command, system;
if (!(dev->raw->enabled_protocols & RC_BIT_RC5X)) {
if (!(dev->enabled_protocols & RC_BIT_RC5X)) {
data->state = STATE_INACTIVE;
return 0;
}
@ -145,7 +145,7 @@ again:
} else {
/* RC5 */
u8 command, system;
if (!(dev->raw->enabled_protocols & RC_BIT_RC5)) {
if (!(dev->enabled_protocols & RC_BIT_RC5)) {
data->state = STATE_INACTIVE;
return 0;
}

2
drivers/media/rc/ir-rc5-sz-decoder.c
View File

@ -48,7 +48,7 @@ static int ir_rc5_sz_decode(struct rc_dev *dev, struct ir_raw_event ev)
u8 toggle, command, system;
u32 scancode;
if (!(dev->raw->enabled_protocols & RC_BIT_RC5_SZ))
if (!(dev->enabled_protocols & RC_BIT_RC5_SZ))
return 0;
if (!is_timing_event(ev)) {

2
drivers/media/rc/ir-rc6-decoder.c
View File

@ -89,7 +89,7 @@ static int ir_rc6_decode(struct rc_dev *dev, struct ir_raw_event ev)
u32 scancode;
u8 toggle;
if (!(dev->raw->enabled_protocols &
if (!(dev->enabled_protocols &
(RC_BIT_RC6_0 | RC_BIT_RC6_6A_20 | RC_BIT_RC6_6A_24 |
RC_BIT_RC6_6A_32 | RC_BIT_RC6_MCE)))
return 0;

2
drivers/media/rc/ir-sanyo-decoder.c
View File

@ -58,7 +58,7 @@ static int ir_sanyo_decode(struct rc_dev *dev, struct ir_raw_event ev)
u32 scancode;
u8 address, command, not_command;
if (!(dev->raw->enabled_protocols & RC_BIT_SANYO))
if (!(dev->enabled_protocols & RC_BIT_SANYO))
return 0;
if (!is_timing_event(ev)) {

8
drivers/media/rc/ir-sony-decoder.c
View File

@ -45,7 +45,7 @@ static int ir_sony_decode(struct rc_dev *dev, struct ir_raw_event ev)
u32 scancode;
u8 device, subdevice, function;
if (!(dev->raw->enabled_protocols &
if (!(dev->enabled_protocols &
(RC_BIT_SONY12 | RC_BIT_SONY15 | RC_BIT_SONY20)))
return 0;
@ -124,7 +124,7 @@ static int ir_sony_decode(struct rc_dev *dev, struct ir_raw_event ev)
switch (data->count) {
case 12:
if (!(dev->raw->enabled_protocols & RC_BIT_SONY12)) {
if (!(dev->enabled_protocols & RC_BIT_SONY12)) {
data->state = STATE_INACTIVE;
return 0;
}
@ -133,7 +133,7 @@ static int ir_sony_decode(struct rc_dev *dev, struct ir_raw_event ev)
function = bitrev8((data->bits >> 4) & 0xFE);
break;
case 15:
if (!(dev->raw->enabled_protocols & RC_BIT_SONY15)) {
if (!(dev->enabled_protocols & RC_BIT_SONY15)) {
data->state = STATE_INACTIVE;
return 0;
}
@ -142,7 +142,7 @@ static int ir_sony_decode(struct rc_dev *dev, struct ir_raw_event ev)
function = bitrev8((data->bits >> 7) & 0xFE);
break;
case 20:
if (!(dev->raw->enabled_protocols & RC_BIT_SONY20)) {
if (!(dev->enabled_protocols & RC_BIT_SONY20)) {
data->state = STATE_INACTIVE;
return 0;
}

1
drivers/media/rc/rc-core-priv.h
View File

@ -39,7 +39,6 @@ struct ir_raw_event_ctrl {
ktime_t last_event; /* when last event occurred */
enum raw_event_type last_type; /* last event type */
struct rc_dev *dev; /* pointer to the parent rc_dev */
u64 enabled_protocols; /* enabled raw protocol decoders */
/* raw decoder state follows */
struct ir_raw_event prev_ev;

32
drivers/media/rc/rc-main.c
View File

@ -783,13 +783,12 @@ static ssize_t show_protocols(struct device *device,
mutex_lock(&dev->lock);
if (dev->driver_type == RC_DRIVER_SCANCODE) {
enabled = dev->rc_map.rc_type;
enabled = dev->enabled_protocols;
if (dev->driver_type == RC_DRIVER_SCANCODE)
allowed = dev->allowed_protos;
} else if (dev->raw) {
enabled = dev->raw->enabled_protocols;
else if (dev->raw)
allowed = ir_raw_get_allowed_protocols();
} else {
else {
mutex_unlock(&dev->lock);
return -ENODEV;
}
@ -847,7 +846,6 @@ static ssize_t store_protocols(struct device *device,
u64 type;
u64 mask;
int rc, i, count = 0;
unsigned long flags;
ssize_t ret;
/* Device is being removed */
@ -856,15 +854,12 @@ static ssize_t store_protocols(struct device *device,
mutex_lock(&dev->lock);
if (dev->driver_type == RC_DRIVER_SCANCODE)
type = dev->rc_map.rc_type;
else if (dev->raw)
type = dev->raw->enabled_protocols;
else {
if (dev->driver_type != RC_DRIVER_SCANCODE && !dev->raw) {
IR_dprintk(1, "Protocol switching not supported\n");
ret = -EINVAL;
goto out;
}
type = dev->enabled_protocols;
while ((tmp = strsep((char **) &data, " \n")) != NULL) {
if (!*tmp)
@ -922,14 +917,7 @@ static ssize_t store_protocols(struct device *device,
}
}
if (dev->driver_type == RC_DRIVER_SCANCODE) {
spin_lock_irqsave(&dev->rc_map.lock, flags);
dev->rc_map.rc_type = type;
spin_unlock_irqrestore(&dev->rc_map.lock, flags);
} else {
dev->raw->enabled_protocols = type;
}
dev->enabled_protocols = type;
IR_dprintk(1, "Current protocol(s): 0x%llx\n",
(long long)type);
@ -1068,9 +1056,8 @@ int rc_register_device(struct rc_dev *dev)
/*
* Take the lock here, as the device sysfs node will appear
* when device_add() is called, which may trigger an ir-keytable udev
* rule, which will in turn call show_protocols and access either
* dev->rc_map.rc_type or dev->raw->enabled_protocols before it has
* been initialized.
* rule, which will in turn call show_protocols and access
* dev->enabled_protocols before it has been initialized.
*/
mutex_lock(&dev->lock);
@ -1132,6 +1119,7 @@ int rc_register_device(struct rc_dev *dev)
rc = dev->change_protocol(dev, &rc_type);
if (rc < 0)
goto out_raw;
dev->enabled_protocols = rc_type;
}
mutex_unlock(&dev->lock);

2
include/media/rc-core.h
View File

@ -51,6 +51,7 @@ enum rc_driver_type {
* @driver_type: specifies if protocol decoding is done in hardware or software
* @idle: used to keep track of RX state
* @allowed_protos: bitmask with the supported RC_BIT_* protocols
* @enabled_protocols: bitmask with the enabled RC_BIT_* protocols
* @scanmask: some hardware decoders are not capable of providing the full
* scancode to the application. As this is a hardware limit, we can't do
* anything with it. Yet, as the same keycode table can be used with other
@ -99,6 +100,7 @@ struct rc_dev {
enum rc_driver_type driver_type;
bool idle;
u64 allowed_protos;
u64 enabled_protocols;
u32 scanmask;
void *priv;
spinlock_t keylock;