V4L/DVB (4038): New cx88 card #50: NPG Tech RealTV

Added support for a new cx88 card, including it's remote

Signed-off-by: Ricardo Cerqueira <v4l@cerqueira.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 28 insertions, 3 deletions

diff --git a/drivers/media/video/cx88/cx88-input.c b/drivers/media/video/cx88/cx88-input.c
index 78a63b7dd380..4bd86c4fd1b2 100644
--- a/drivers/media/video/cx88/cx88-input.c
+++ b/drivers/media/video/cx88/cx88-input.c
@@ -70,14 +70,33 @@ MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
 static void cx88_ir_handle_key(struct cx88_IR *ir)
 {
         struct cx88_core *core = ir->core;
-        u32 gpio, data;
+        u32 gpio, data, auxgpio;
 
         /* read gpio value */
         gpio = cx_read(ir->gpio_addr);
+        if (core->board == CX88_BOARD_NPGTECH_REALTV) {
+                /* This board apparently uses a combination of 2 GPIO
+                   to represent the keys. Additionally, the second GPIO
+                   can be used for parity.
+
+                   Example:
+
+                   for key "5"
+                        gpio = 0x758, auxgpio = 0xe5 or 0xf5
+                   for key "Power"
+                        gpio = 0x758, auxgpio = 0xed or 0xfd
+                 */
+
+                auxgpio = cx_read(MO_GP1_IO);
+                /* Take out the parity part */
+                gpio+=(auxgpio & 0xef);
+        } else
+                auxgpio = gpio;
+
         if (ir->polling) {
-                if (ir->last_gpio == gpio)
+                if (ir->last_gpio == auxgpio)
                         return;
-                ir->last_gpio = gpio;
+                ir->last_gpio = auxgpio;
         }
 
         /* extract data */
@@ -228,6 +247,12 @@ int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci)
                 ir_type = IR_TYPE_PD;
                 ir->sampling = 0xff00; /* address */
                 break;
+        case CX88_BOARD_NPGTECH_REALTV:
+                ir_codes = ir_codes_npgtech;
+                ir->gpio_addr = MO_GP0_IO;
+                ir->mask_keycode = 0xfa;
+                ir->polling = 50; /* ms */
+                break;
         }
 
         if (NULL == ir_codes) {