[media] cx23855: add support for DVBSky T980C (no CI support)

This patch adds basic support for DVBSky T980C card. CI interface is not supported.

DVBSky T980C is a PCIe card with the following components:
- CX23885 PCIe bridge
- Si2168-A20 demodulator
- Si2158-A20 tuner
- CIMaX SP2 CI chip

The demodulator and tuner need firmware. They're the same as used with TT CT2-4650 CI:
https://www.mail-archive.com/linux-media@vger.kernel.org/msg78033.html

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

3 files changed, 102 insertions, 0 deletions

diff --git a/drivers/media/pci/cx23885/cx23885-cards.c b/drivers/media/pci/cx23885/cx23885-cards.c
index 88c257d1161b..e8965e63eb09 100644
--- a/drivers/media/pci/cx23885/cx23885-cards.c
+++ b/drivers/media/pci/cx23885/cx23885-cards.c
@@ -680,6 +680,10 @@ struct cx23885_board cx23885_boards[] = {
                 .portb          = CX23885_MPEG_DVB,
                 .portc          = CX23885_MPEG_DVB,
         },
+        [CX23885_BOARD_DVBSKY_T980C] = {
+                .name           = "DVBSky T980C",
+                .portb          = CX23885_MPEG_DVB,
+        },
 };
 const unsigned int cx23885_bcount = ARRAY_SIZE(cx23885_boards);
 
@@ -939,6 +943,10 @@ struct cx23885_subid cx23885_subids[] = {
                 .subvendor = 0x4254,
                 .subdevice = 0x9580,
                 .card      = CX23885_BOARD_DVBSKY_T9580,
+        }, {
+                .subvendor = 0x4254,
+                .subdevice = 0x980c,
+                .card      = CX23885_BOARD_DVBSKY_T980C,
         },
 };
 const unsigned int cx23885_idcount = ARRAY_SIZE(cx23885_subids);
@@ -1541,6 +1549,36 @@ void cx23885_gpio_setup(struct cx23885_dev *dev)
                 mdelay(100);
                 cx23885_gpio_set(dev, GPIO_2 | GPIO_11);
                 break;
+        case CX23885_BOARD_DVBSKY_T980C:
+                /*
+                 * GPIO-0 INTA from CiMax, input
+                 * GPIO-1 reset CiMax, output, high active
+                 * GPIO-2 reset demod, output, low active
+                 * GPIO-3 to GPIO-10 data/addr for CAM
+                 * GPIO-11 ~CS0 to CiMax1
+                 * GPIO-12 ~CS1 to CiMax2
+                 * GPIO-13 ADL0 load LSB addr
+                 * GPIO-14 ADL1 load MSB addr
+                 * GPIO-15 ~RDY from CiMax
+                 * GPIO-17 ~RD to CiMax
+                 * GPIO-18 ~WR to CiMax
+                 */
+
+                cx_set(GP0_IO, 0x00060002); /* GPIO 1/2 as output */
+                cx_clear(GP0_IO, 0x00010004); /* GPIO 0 as input */
+                mdelay(100); /* reset delay */
+                cx_set(GP0_IO, 0x00060004); /* GPIO as out, reset high */
+                cx_clear(GP0_IO, 0x00010002);
+                cx_write(MC417_CTL, 0x00000037); /* enable GPIO3-18 pins */
+
+                /* GPIO-15 IN as ~ACK, rest as OUT */
+                cx_write(MC417_OEN, 0x00001000);
+
+                /* ~RD, ~WR high; ADL0, ADL1 low; ~CS0, ~CS1 high */
+                cx_write(MC417_RWD, 0x0000c300);
+
+                /* enable irq */
+                cx_write(GPIO_ISM, 0x00000000); /* INTERRUPTS active low */
         }
 }
 
@@ -1817,6 +1855,7 @@ void cx23885_card_setup(struct cx23885_dev *dev)
         case CX23885_BOARD_TEVII_S471:
         case CX23885_BOARD_DVBWORLD_2005:
         case CX23885_BOARD_PROF_8000:
+        case CX23885_BOARD_DVBSKY_T980C:
                 ts1->gen_ctrl_val  = 0x5; /* Parallel */
                 ts1->ts_clk_en_val = 0x1; /* Enable TS_CLK */
                 ts1->src_sel_val   = CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO;
@@ -1935,6 +1974,7 @@ void cx23885_card_setup(struct cx23885_dev *dev)
         case CX23885_BOARD_TBS_6980:
         case CX23885_BOARD_TBS_6981:
         case CX23885_BOARD_DVBSKY_T9580:
+        case CX23885_BOARD_DVBSKY_T980C:
                 dev->sd_cx25840 = v4l2_i2c_new_subdev(&dev->v4l2_dev,
                                 &dev->i2c_bus[2].i2c_adap,
                                 "cx25840", 0x88 >> 1, NULL);
diff --git a/drivers/media/pci/cx23885/cx23885-dvb.c b/drivers/media/pci/cx23885/cx23885-dvb.c
index 4cb90317ff45..062854d30a75 100644
--- a/drivers/media/pci/cx23885/cx23885-dvb.c
+++ b/drivers/media/pci/cx23885/cx23885-dvb.c
@@ -1680,6 +1680,52 @@ static int dvb_register(struct cx23885_tsport *port)
                         break;
                 }
                 break;
+        case CX23885_BOARD_DVBSKY_T980C:
+                i2c_bus = &dev->i2c_bus[1];
+
+                /* attach frontend */
+                memset(&si2168_config, 0, sizeof(si2168_config));
+                si2168_config.i2c_adapter = &adapter;
+                si2168_config.fe = &fe0->dvb.frontend;
+                si2168_config.ts_mode = SI2168_TS_PARALLEL;
+                memset(&info, 0, sizeof(struct i2c_board_info));
+                strlcpy(info.type, "si2168", I2C_NAME_SIZE);
+                info.addr = 0x64;
+                info.platform_data = &si2168_config;
+                request_module(info.type);
+                client_demod = i2c_new_device(&i2c_bus->i2c_adap, &info);
+                if (client_demod == NULL ||
+                                client_demod->dev.driver == NULL)
+                        goto frontend_detach;
+                if (!try_module_get(client_demod->dev.driver->owner)) {
+                        i2c_unregister_device(client_demod);
+                        goto frontend_detach;
+                }
+                port->i2c_client_demod = client_demod;
+
+                /* attach tuner */
+                memset(&si2157_config, 0, sizeof(si2157_config));
+                si2157_config.fe = fe0->dvb.frontend;
+                memset(&info, 0, sizeof(struct i2c_board_info));
+                strlcpy(info.type, "si2157", I2C_NAME_SIZE);
+                info.addr = 0x60;
+                info.platform_data = &si2157_config;
+                request_module(info.type);
+                client_tuner = i2c_new_device(adapter, &info);
+                if (client_tuner == NULL ||
+                                client_tuner->dev.driver == NULL) {
+                        module_put(client_demod->dev.driver->owner);
+                        i2c_unregister_device(client_demod);
+                        goto frontend_detach;
+                }
+                if (!try_module_get(client_tuner->dev.driver->owner)) {
+                        i2c_unregister_device(client_tuner);
+                        module_put(client_demod->dev.driver->owner);
+                        i2c_unregister_device(client_demod);
+                        goto frontend_detach;
+                }
+                port->i2c_client_tuner = client_tuner;
+                break;
         default:
                 printk(KERN_INFO "%s: The frontend of your DVB/ATSC card "
                         " isn't supported yet\n",
@@ -1770,6 +1816,21 @@ static int dvb_register(struct cx23885_tsport *port)
                         (port->nr-1) * 8, 6);
                 break;
                 }
+        case CX23885_BOARD_DVBSKY_T980C: {
+                u8 eeprom[256]; /* 24C02 i2c eeprom */
+
+                if (port->nr != 1)
+                        break;
+
+                /* Read entire EEPROM */
+                dev->i2c_bus[0].i2c_client.addr = 0xa0 >> 1;
+                tveeprom_read(&dev->i2c_bus[0].i2c_client, eeprom,
+                                sizeof(eeprom));
+                printk(KERN_INFO "DVBSky T980C MAC address: %pM\n",
+                        eeprom + 0xc0);
+                memcpy(port->frontends.adapter.proposed_mac, eeprom + 0xc0, 6);
+                break;
+                }
         }
 
         return ret;
diff --git a/drivers/media/pci/cx23885/cx23885.h b/drivers/media/pci/cx23885/cx23885.h
index 6c35e6115969..33b1e26847a2 100644
--- a/drivers/media/pci/cx23885/cx23885.h
+++ b/drivers/media/pci/cx23885/cx23885.h
@@ -93,6 +93,7 @@
 #define CX23885_BOARD_HAUPPAUGE_IMPACTVCBE     43
 #define CX23885_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL_EXP2 44
 #define CX23885_BOARD_DVBSKY_T9580             45
+#define CX23885_BOARD_DVBSKY_T980C             46
 
 #define GPIO_0 0x00000001
 #define GPIO_1 0x00000002