[media] mantis: add remote control support

The embedded UART is apparently used to receive decoded IR (RC5?) codes.
Forward these scan codes to the RC framework and (where known) add
corresponding mapping tables to translate them into regular keys.

This patch has been tested on a TechniSat CableStar HD2. The mappings of other
rc-maps were taken from Christoph Pinkl's patch
(http://patchwork.linuxtv.org/patch/7217/) and the s2-liplianin repository. The
major difference to Christoph's patch is a reworked interrupt handling of the
UART because the RX interrupt is apparently level triggered and requires
masking until the FIFO is read by the UART worker.

Signed-off-by: Jan Klötzke <jan@kloetzke.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

1 files changed, 16 insertions, 90 deletions

diff --git a/drivers/media/pci/mantis/mantis_input.c b/drivers/media/pci/mantis/mantis_input.c
index 0e5252e5c0ef..abf0ddfef0cb 100644
--- a/drivers/media/pci/mantis/mantis_input.c
+++ b/drivers/media/pci/mantis/mantis_input.c
@@ -18,8 +18,6 @@
 	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
-#if 0 /* Currently unused */
-
 #include <media/rc-core.h>
 #include <linux/pci.h>
 
@@ -30,100 +28,32 @@
 #include "dvb_net.h"
 
 #include "mantis_common.h"
-#include "mantis_reg.h"
-#include "mantis_uart.h"
+#include "mantis_input.h"
 
 #define MODULE_NAME "mantis_core"
-#define RC_MAP_MANTIS "rc-mantis"
-
-static struct rc_map_table mantis_ir_table[] = {
-	{ 0x29, KEY_POWER	},
-	{ 0x28, KEY_FAVORITES	},
-	{ 0x30, KEY_TEXT	},
-	{ 0x17, KEY_INFO	}, /* Preview */
-	{ 0x23, KEY_EPG		},
-	{ 0x3b, KEY_F22		}, /* Record List */
-	{ 0x3c, KEY_1		},
-	{ 0x3e, KEY_2		},
-	{ 0x39, KEY_3		},
-	{ 0x36, KEY_4		},
-	{ 0x22, KEY_5		},
-	{ 0x20, KEY_6		},
-	{ 0x32, KEY_7		},
-	{ 0x26, KEY_8		},
-	{ 0x24, KEY_9		},
-	{ 0x2a, KEY_0		},
-
-	{ 0x33, KEY_CANCEL	},
-	{ 0x2c, KEY_BACK	},
-	{ 0x15, KEY_CLEAR	},
-	{ 0x3f, KEY_TAB		},
-	{ 0x10, KEY_ENTER	},
-	{ 0x14, KEY_UP		},
-	{ 0x0d, KEY_RIGHT	},
-	{ 0x0e, KEY_DOWN	},
-	{ 0x11, KEY_LEFT	},
-
-	{ 0x21, KEY_VOLUMEUP	},
-	{ 0x35, KEY_VOLUMEDOWN	},
-	{ 0x3d, KEY_CHANNELDOWN	},
-	{ 0x3a, KEY_CHANNELUP	},
-	{ 0x2e, KEY_RECORD	},
-	{ 0x2b, KEY_PLAY	},
-	{ 0x13, KEY_PAUSE	},
-	{ 0x25, KEY_STOP	},
-
-	{ 0x1f, KEY_REWIND	},
-	{ 0x2d, KEY_FASTFORWARD	},
-	{ 0x1e, KEY_PREVIOUS	}, /* Replay |< */
-	{ 0x1d, KEY_NEXT	}, /* Skip   >| */
-
-	{ 0x0b, KEY_CAMERA	}, /* Capture */
-	{ 0x0f, KEY_LANGUAGE	}, /* SAP */
-	{ 0x18, KEY_MODE	}, /* PIP */
-	{ 0x12, KEY_ZOOM	}, /* Full screen */
-	{ 0x1c, KEY_SUBTITLE	},
-	{ 0x2f, KEY_MUTE	},
-	{ 0x16, KEY_F20		}, /* L/R */
-	{ 0x38, KEY_F21		}, /* Hibernate */
-
-	{ 0x37, KEY_SWITCHVIDEOMODE }, /* A/V */
-	{ 0x31, KEY_AGAIN	}, /* Recall */
-	{ 0x1a, KEY_KPPLUS	}, /* Zoom+ */
-	{ 0x19, KEY_KPMINUS	}, /* Zoom- */
-	{ 0x27, KEY_RED		},
-	{ 0x0C, KEY_GREEN	},
-	{ 0x01, KEY_YELLOW	},
-	{ 0x00, KEY_BLUE	},
-};
-
-static struct rc_map_list ir_mantis_map = {
-	.map = {
-		.scan = mantis_ir_table,
-		.size = ARRAY_SIZE(mantis_ir_table),
-		.rc_type = RC_TYPE_UNKNOWN,
-		.name = RC_MAP_MANTIS,
-	}
-};
+
+void mantis_input_process(struct mantis_pci *mantis, int scancode)
+{
+	if (mantis->rc)
+		rc_keydown(mantis->rc, RC_TYPE_UNKNOWN, scancode, 0);
+}
 
 int mantis_input_init(struct mantis_pci *mantis)
 {
 	struct rc_dev *dev;
 	int err;
 
-	err = rc_map_register(&ir_mantis_map);
-	if (err)
-		goto out;
-
 	dev = rc_allocate_device();
 	if (!dev) {
 		dprintk(MANTIS_ERROR, 1, "Remote device allocation failed");
 		err = -ENOMEM;
-		goto out_map;
+		goto out;
 	}
 
-	sprintf(mantis->input_name, "Mantis %s IR receiver", mantis->hwconfig->model_name);
-	sprintf(mantis->input_phys, "pci-%s/ir0", pci_name(mantis->pdev));
+	snprintf(mantis->input_name, sizeof(mantis->input_name),
+		"Mantis %s IR receiver", mantis->hwconfig->model_name);
+	snprintf(mantis->input_phys, sizeof(mantis->input_phys),
+		"pci-%s/ir0", pci_name(mantis->pdev));
 
 	dev->input_name         = mantis->input_name;
 	dev->input_phys         = mantis->input_phys;
@@ -132,7 +62,7 @@ int mantis_input_init(struct mantis_pci *mantis)
 	dev->input_id.product   = mantis->device_id;
 	dev->input_id.version   = 1;
 	dev->driver_name        = MODULE_NAME;
-	dev->map_name           = RC_MAP_MANTIS;
+	dev->map_name           = mantis->rc_map_name ? : RC_MAP_EMPTY;
 	dev->dev.parent         = &mantis->pdev->dev;
 
 	err = rc_register_device(dev);
@@ -146,17 +76,13 @@ int mantis_input_init(struct mantis_pci *mantis)
 
 out_dev:
 	rc_free_device(dev);
-out_map:
-	rc_map_unregister(&ir_mantis_map);
 out:
 	return err;
 }
+EXPORT_SYMBOL_GPL(mantis_input_init);
 
-int mantis_init_exit(struct mantis_pci *mantis)
+void mantis_input_exit(struct mantis_pci *mantis)
 {
 	rc_unregister_device(mantis->rc);
-	rc_map_unregister(&ir_mantis_map);
-	return 0;
 }
-
-#endif
+EXPORT_SYMBOL_GPL(mantis_input_exit);