[media] rc: Hauppauge z8f0811 can decode RC6
The hardware does not decode the 16, 20 or 24 bit variety.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/drivers/media/i2c/ir-kbd-i2c.c b/drivers/media/i2c/ir-kbd-i2c.c
index bf82726..f95a6bc 100644
--- a/drivers/media/i2c/ir-kbd-i2c.c
+++ b/drivers/media/i2c/ir-kbd-i2c.c
@@ -35,6 +35,7 @@
*
*/
+#include <asm/unaligned.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
@@ -63,51 +64,80 @@
/* ----------------------------------------------------------------------- */
static int get_key_haup_common(struct IR_i2c *ir, enum rc_type *protocol,
- u32 *scancode, u8 *ptoggle, int size, int offset)
+ u32 *scancode, u8 *ptoggle, int size)
{
unsigned char buf[6];
- int start, range, toggle, dev, code, ircode;
+ int start, range, toggle, dev, code, ircode, vendor;
/* poll IR chip */
if (size != i2c_master_recv(ir->c, buf, size))
return -EIO;
- /* split rc5 data block ... */
- start = (buf[offset] >> 7) & 1;
- range = (buf[offset] >> 6) & 1;
- toggle = (buf[offset] >> 5) & 1;
- dev = buf[offset] & 0x1f;
- code = (buf[offset+1] >> 2) & 0x3f;
+ if (buf[0] & 0x80) {
+ int offset = (size == 6) ? 3 : 0;
- /* rc5 has two start bits
- * the first bit must be one
- * the second bit defines the command range (1 = 0-63, 0 = 64 - 127)
- */
- if (!start)
- /* no key pressed */
- return 0;
+ /* split rc5 data block ... */
+ start = (buf[offset] >> 7) & 1;
+ range = (buf[offset] >> 6) & 1;
+ toggle = (buf[offset] >> 5) & 1;
+ dev = buf[offset] & 0x1f;
+ code = (buf[offset+1] >> 2) & 0x3f;
- /* filter out invalid key presses */
- ircode = (start << 12) | (toggle << 11) | (dev << 6) | code;
- if ((ircode & 0x1fff) == 0x1fff)
- return 0;
+ /* rc5 has two start bits
+ * the first bit must be one
+ * the second bit defines the command range:
+ * 1 = 0-63, 0 = 64 - 127
+ */
+ if (!start)
+ /* no key pressed */
+ return 0;
- if (!range)
- code += 64;
+ /* filter out invalid key presses */
+ ircode = (start << 12) | (toggle << 11) | (dev << 6) | code;
+ if ((ircode & 0x1fff) == 0x1fff)
+ return 0;
- dprintk(1,"ir hauppauge (rc5): s%d r%d t%d dev=%d code=%d\n",
- start, range, toggle, dev, code);
+ if (!range)
+ code += 64;
- *protocol = RC_TYPE_RC5;
- *scancode = RC_SCANCODE_RC5(dev, code);
- *ptoggle = toggle;
- return 1;
+ dprintk(1, "ir hauppauge (rc5): s%d r%d t%d dev=%d code=%d\n",
+ start, range, toggle, dev, code);
+
+ *protocol = RC_TYPE_RC5;
+ *scancode = RC_SCANCODE_RC5(dev, code);
+ *ptoggle = toggle;
+
+ return 1;
+ } else if (size == 6 && (buf[0] & 0x40)) {
+ code = buf[4];
+ dev = buf[3];
+ vendor = get_unaligned_be16(buf + 1);
+
+ if (vendor == 0x800f) {
+ *ptoggle = (dev & 0x80) != 0;
+ *protocol = RC_TYPE_RC6_MCE;
+ dev &= 0x7f;
+ dprintk(1, "ir hauppauge (rc6-mce): t%d vendor=%d dev=%d code=%d\n",
+ toggle, vendor, dev, code);
+ } else {
+ *ptoggle = 0;
+ *protocol = RC_TYPE_RC6_6A_32;
+ dprintk(1, "ir hauppauge (rc6-6a-32): vendor=%d dev=%d code=%d\n",
+ vendor, dev, code);
+ }
+
+ *scancode = RC_SCANCODE_RC6_6A(vendor, dev, code);
+
+ return 1;
+ }
+
+ return 0;
}
static int get_key_haup(struct IR_i2c *ir, enum rc_type *protocol,
u32 *scancode, u8 *toggle)
{
- return get_key_haup_common (ir, protocol, scancode, toggle, 3, 0);
+ return get_key_haup_common(ir, protocol, scancode, toggle, 3);
}
static int get_key_haup_xvr(struct IR_i2c *ir, enum rc_type *protocol,
@@ -126,7 +156,7 @@
if (ret != 1)
return (ret < 0) ? ret : -EINVAL;
- return get_key_haup_common(ir, protocol, scancode, toggle, 6, 3);
+ return get_key_haup_common(ir, protocol, scancode, toggle, 6);
}
static int get_key_pixelview(struct IR_i2c *ir, enum rc_type *protocol,
@@ -347,7 +377,7 @@
case 0x71:
name = "Hauppauge/Zilog Z8";
ir->get_key = get_key_haup_xvr;
- rc_type = RC_BIT_RC5;
+ rc_type = RC_BIT_RC5 | RC_BIT_RC6_MCE | RC_BIT_RC6_6A_32;
ir_codes = RC_MAP_HAUPPAUGE;
break;
}
