[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, 44 insertions, 13 deletions

diff --git a/drivers/media/pci/mantis/mantis_cards.c b/drivers/media/pci/mantis/mantis_cards.c
index 9861a8cf1dce..6b64bfd938b6 100644
--- a/drivers/media/pci/mantis/mantis_cards.c
+++ b/drivers/media/pci/mantis/mantis_cards.c
@@ -25,6 +25,7 @@
 #include <linux/slab.h>
 #include <asm/irq.h>
 #include <linux/interrupt.h>
+#include <media/rc-map.h>
 
 #include "dmxdev.h"
 #include "dvbdev.h"
@@ -49,6 +50,7 @@
 #include "mantis_pci.h"
 #include "mantis_i2c.h"
 #include "mantis_reg.h"
+#include "mantis_input.h"
 
 static unsigned int verbose;
 module_param(verbose, int, 0644);
@@ -114,6 +116,9 @@ static irqreturn_t mantis_irq_handler(int irq, void *dev_id)
 	}
 	if (stat & MANTIS_INT_IRQ1) {
 		dprintk(MANTIS_DEBUG, 0, "<%s>", label[2]);
+		spin_lock(&mantis->intmask_lock);
+		mmwrite(mmread(MANTIS_INT_MASK) & ~MANTIS_INT_IRQ1, MANTIS_INT_MASK);
+		spin_unlock(&mantis->intmask_lock);
 		schedule_work(&mantis->uart_work);
 	}
 	if (stat & MANTIS_INT_OCERR) {
@@ -162,6 +167,7 @@ static irqreturn_t mantis_irq_handler(int irq, void *dev_id)
 static int mantis_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *pci_id)
 {
+	struct mantis_pci_drvdata *drvdata;
 	struct mantis_pci *mantis;
 	struct mantis_hwconfig *config;
 	int err = 0;
@@ -172,12 +178,16 @@ static int mantis_pci_probe(struct pci_dev *pdev,
 		return -ENOMEM;
 	}
 
+	drvdata			= (struct mantis_pci_drvdata *) pci_id->driver_data;
 	mantis->num		= devs;
 	mantis->verbose		= verbose;
 	mantis->pdev		= pdev;
-	config			= (struct mantis_hwconfig *) pci_id->driver_data;
+	config			= drvdata->hwconfig;
 	config->irq_handler	= &mantis_irq_handler;
 	mantis->hwconfig	= config;
+	mantis->rc_map_name	= drvdata->rc_map_name;
+
+	spin_lock_init(&mantis->intmask_lock);
 
 	err = mantis_pci_init(mantis);
 	if (err) {
@@ -215,16 +225,25 @@ static int mantis_pci_probe(struct pci_dev *pdev,
 		goto err_dma_exit;
 	}
 
+	err = mantis_input_init(mantis);
+	if (err < 0) {
+		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DVB initialization failed <%d>", err);
+		goto err_dvb_exit;
+	}
+
 	err = mantis_uart_init(mantis);
 	if (err < 0) {
 		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis UART initialization failed <%d>", err);
-		goto err_dvb_exit;
+		goto err_input_exit;
 	}
 
 	devs++;
 
 	return 0;
 
+err_input_exit:
+	mantis_input_exit(mantis);
+
 err_dvb_exit:
 	mantis_dvb_exit(mantis);
 
@@ -250,6 +269,7 @@ static void mantis_pci_remove(struct pci_dev *pdev)
 	if (mantis) {
 
 		mantis_uart_exit(mantis);
+		mantis_input_exit(mantis);
 		mantis_dvb_exit(mantis);
 		mantis_dma_exit(mantis);
 		mantis_i2c_exit(mantis);
@@ -260,17 +280,28 @@ static void mantis_pci_remove(struct pci_dev *pdev)
 }
 
 static struct pci_device_id mantis_pci_table[] = {
-	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1033_DVB_S, &vp1033_config),
-	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1034_DVB_S, &vp1034_config),
-	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1041_DVB_S2, &vp1041_config),
-	MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_10, &vp1041_config),
-	MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_20, &vp1041_config),
-	MAKE_ENTRY(TERRATEC, CINERGY_S2_PCI_HD, &vp1041_config),
-	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2033_DVB_C, &vp2033_config),
-	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2040_DVB_C, &vp2040_config),
-	MAKE_ENTRY(TECHNISAT, CABLESTAR_HD2, &vp2040_config),
-	MAKE_ENTRY(TERRATEC, CINERGY_C, &vp2040_config),
-	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_3030_DVB_T, &vp3030_config),
+	MAKE_ENTRY(TECHNISAT, CABLESTAR_HD2, &vp2040_config,
+		RC_MAP_TECHNISAT_TS35),
+	MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_10, &vp1041_config,
+		NULL),
+	MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_20, &vp1041_config,
+		NULL),
+	MAKE_ENTRY(TERRATEC, CINERGY_C, &vp2040_config,
+		RC_MAP_TERRATEC_CINERGY_C_PCI),
+	MAKE_ENTRY(TERRATEC, CINERGY_S2_PCI_HD, &vp1041_config,
+		RC_MAP_TERRATEC_CINERGY_S2_HD),
+	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1033_DVB_S, &vp1033_config,
+		NULL),
+	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1034_DVB_S, &vp1034_config,
+		NULL),
+	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1041_DVB_S2, &vp1041_config,
+		RC_MAP_TWINHAN_DTV_CAB_CI),
+	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2033_DVB_C, &vp2033_config,
+		RC_MAP_TWINHAN_DTV_CAB_CI),
+	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2040_DVB_C, &vp2040_config,
+		NULL),
+	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_3030_DVB_T, &vp3030_config,
+		NULL),
 	{ }
 };