aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/rc
diff options
context:
space:
mode:
authorHeiner Kallweit <hkallweit1@gmail.com>2015-11-16 17:52:08 -0200
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-11-19 11:37:40 -0200
commit9f0bf366d70beaae64975dcb89272ea6d6fc4a03 (patch)
treea6278b382dbf642c827256950eb029f7cc984d3b /drivers/media/rc
parent93cffffc18f6894f90ae03552e8a228eb402347c (diff)
[media] media: rc: preparation for on-demand decoder module loading
Prepare on-demand decoder module loading by adding a module_name member to struct proto_names and introducing the related load function. After this patch of the series the decoder modules are still loaded unconditionally. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/rc')
-rw-r--r--drivers/media/rc/rc-main.c72
1 files changed, 59 insertions, 13 deletions
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 784be5ebc7ab..ba5df4b81b9d 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -780,27 +780,28 @@ static struct class rc_class = {
static struct {
u64 type;
char *name;
+ const char *module_name;
} proto_names[] = {
- { RC_BIT_NONE, "none" },
- { RC_BIT_OTHER, "other" },
- { RC_BIT_UNKNOWN, "unknown" },
+ { RC_BIT_NONE, "none", NULL },
+ { RC_BIT_OTHER, "other", NULL },
+ { RC_BIT_UNKNOWN, "unknown", NULL },
{ RC_BIT_RC5 |
- RC_BIT_RC5X, "rc-5" },
- { RC_BIT_NEC, "nec" },
+ RC_BIT_RC5X, "rc-5", "ir-rc5-decoder" },
+ { RC_BIT_NEC, "nec", "ir-nec-decoder" },
{ RC_BIT_RC6_0 |
RC_BIT_RC6_6A_20 |
RC_BIT_RC6_6A_24 |
RC_BIT_RC6_6A_32 |
- RC_BIT_RC6_MCE, "rc-6" },
- { RC_BIT_JVC, "jvc" },
+ RC_BIT_RC6_MCE, "rc-6", "ir-rc6-decoder" },
+ { RC_BIT_JVC, "jvc", "ir-jvc-decoder" },
{ RC_BIT_SONY12 |
RC_BIT_SONY15 |
- RC_BIT_SONY20, "sony" },
- { RC_BIT_RC5_SZ, "rc-5-sz" },
- { RC_BIT_SANYO, "sanyo" },
- { RC_BIT_SHARP, "sharp" },
- { RC_BIT_MCE_KBD, "mce_kbd" },
- { RC_BIT_XMP, "xmp" },
+ RC_BIT_SONY20, "sony", "ir-sony-decoder" },
+ { RC_BIT_RC5_SZ, "rc-5-sz", "ir-rc5-decoder" },
+ { RC_BIT_SANYO, "sanyo", "ir-sanyo-decoder" },
+ { RC_BIT_SHARP, "sharp", "ir-sharp-decoder" },
+ { RC_BIT_MCE_KBD, "mce_kbd", "ir-mce_kbd-decoder" },
+ { RC_BIT_XMP, "xmp", "ir-xmp-decoder" },
};
/**
@@ -979,6 +980,48 @@ static int parse_protocol_change(u64 *protocols, const char *buf)
return count;
}
+static void ir_raw_load_modules(u64 *protocols)
+
+{
+ u64 available;
+ int i, ret;
+
+ for (i = 0; i < ARRAY_SIZE(proto_names); i++) {
+ if (proto_names[i].type == RC_BIT_NONE ||
+ proto_names[i].type & (RC_BIT_OTHER | RC_BIT_UNKNOWN))
+ continue;
+
+ available = ir_raw_get_allowed_protocols();
+ if (!(*protocols & proto_names[i].type & ~available))
+ continue;
+
+ if (!proto_names[i].module_name) {
+ pr_err("Can't enable IR protocol %s\n",
+ proto_names[i].name);
+ *protocols &= ~proto_names[i].type;
+ continue;
+ }
+
+ ret = request_module("%s", proto_names[i].module_name);
+ if (ret < 0) {
+ pr_err("Couldn't load IR protocol module %s\n",
+ proto_names[i].module_name);
+ *protocols &= ~proto_names[i].type;
+ continue;
+ }
+ msleep(20);
+ available = ir_raw_get_allowed_protocols();
+ if (!(*protocols & proto_names[i].type & ~available))
+ continue;
+
+ pr_err("Loaded IR protocol module %s, \
+ but protocol %s still not available\n",
+ proto_names[i].module_name,
+ proto_names[i].name);
+ *protocols &= ~proto_names[i].type;
+ }
+}
+
/**
* store_protocols() - changes the current/wakeup IR protocol(s)
* @device: the device descriptor
@@ -1045,6 +1088,9 @@ static ssize_t store_protocols(struct device *device,
goto out;
}
+ if (dev->driver_type == RC_DRIVER_IR_RAW)
+ ir_raw_load_modules(&new_protocols);
+
if (new_protocols != old_protocols) {
*current_protocols = new_protocols;
IR_dprintk(1, "Protocols changed to 0x%llx\n",

Privacy Policy