[media] em28xx: initial support for HAUPPAUGE HVR-930C again

With this patch I try again to add initial support for HVR930C.

Tested only DVB-T, since in Italy Analog service is stopped.

Actually "scan -a0 -f1", find only about 50 channel while 400 should
be available.

[mchehab@redhat.com: Tested with DVB-C and fixed a few whitespace issues]
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Eddi De Pieri <eddi@depieri.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

3 files changed, 172 insertions, 3 deletions

diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c
index 19a5be370817..705aedfafaec 100644
--- a/drivers/media/video/em28xx/em28xx-cards.c
+++ b/drivers/media/video/em28xx/em28xx-cards.c
@@ -336,6 +336,24 @@ static struct em28xx_reg_seq pctv_460e[] = {
         {             -1,   -1,   -1,  -1},
 };
 
+static struct em28xx_reg_seq hauppauge_930c_gpio[] = {
+// xc5000 reset
+        {EM2874_R80_GPIO,       0x6f,   0xff,   10},
+        {EM2874_R80_GPIO,       0x4f,   0xff,   10},
+        {EM2874_R80_GPIO,       0x6f,   0xff,   10},
+        {EM2874_R80_GPIO,       0x4f,   0xff,   10},
+        { -1,                   -1,     -1,     -1},
+};
+
+#if 0
+static struct em28xx_reg_seq hauppauge_930c_digital[] = {
+        {EM2874_R80_GPIO,       0xf6,   0xff,   10},
+        {EM2874_R80_GPIO,       0xe6,   0xff,   100},
+        {EM2874_R80_GPIO,       0xa6,   0xff,   10},
+        { -1,                   -1,     -1,     -1},
+};
+#endif
+
 /*
  *  Board definitions
  */
@@ -892,6 +910,19 @@ struct em28xx_board em28xx_boards[] = {
                                 EM28XX_I2C_CLK_WAIT_ENABLE |
                                 EM28XX_I2C_FREQ_400_KHZ,
         },
+        [EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C] = {
+                .name         = "Hauppauge WinTV HVR 930C",
+                .has_dvb      = 1,
+//#if 0
+//              .tuner_type   = TUNER_XC5000,
+//              .tuner_addr   = 0x41,
+//              .dvb_gpio     = hauppauge_930c_digital, /* FIXME: probably wrong */
+                .tuner_gpio   = hauppauge_930c_gpio,
+//#endif
+                .i2c_speed    = EM2874_I2C_SECONDARY_BUS_SELECT |
+                                EM28XX_I2C_CLK_WAIT_ENABLE |
+                                EM28XX_I2C_FREQ_400_KHZ,
+        },
         [EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900] = {
                 .name         = "Hauppauge WinTV HVR 900",
                 .tda9887_conf = TDA9887_PRESENT,
@@ -1975,6 +2006,8 @@ struct usb_device_id em28xx_id_table[] = {
                         .driver_info = EM28174_BOARD_PCTV_290E },
         { USB_DEVICE(0x2013, 0x024c),
                         .driver_info = EM28174_BOARD_PCTV_460E },
+        { USB_DEVICE(0x2040, 0x1605),
+                        .driver_info = EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C },
         { },
 };
 MODULE_DEVICE_TABLE(usb, em28xx_id_table);
@@ -2028,10 +2061,10 @@ int em28xx_tuner_callback(void *ptr, int component, int command, int arg)
         int rc = 0;
         struct em28xx *dev = ptr;
 
-        if (dev->tuner_type != TUNER_XC2028)
+        if (dev->tuner_type != TUNER_XC2028 && dev->tuner_type != TUNER_XC5000)
                 return 0;
 
-        if (command != XC2028_TUNER_RESET)
+        if (command != XC2028_TUNER_RESET && command != XC5000_TUNER_RESET)
                 return 0;
 
         rc = em28xx_gpio_set(dev, dev->board.tuner_gpio);
diff --git a/drivers/media/video/em28xx/em28xx-dvb.c b/drivers/media/video/em28xx/em28xx-dvb.c
index cef7a2d409cb..d19939b04ec3 100644
--- a/drivers/media/video/em28xx/em28xx-dvb.c
+++ b/drivers/media/video/em28xx/em28xx-dvb.c
@@ -316,6 +316,14 @@ struct drxk_config terratec_h5_drxk = {
         .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
 };
 
+struct drxk_config hauppauge_930c_drxk = {
+        .adr = 0x29,
+        .single_master = 1,
+        .no_i2c_bridge = 1,
+        .microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
+        .chunk_size = 56,
+};
+
 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 {
         struct em28xx_dvb *dvb = fe->sec_priv;
@@ -334,6 +342,90 @@ static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
         return status;
 }
 
+static void hauppauge_hvr930c_init(struct em28xx *dev)
+{
+        int i;
+
+        struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
+                {EM2874_R80_GPIO,       0xff,   0xff,   101},  //11111111
+//              {0xd            ,       0xff,   0xff,   101},  //11111111
+                {EM2874_R80_GPIO,       0xfb,   0xff,   50},   //11111011  init bit 3
+                {EM2874_R80_GPIO,       0xff,   0xff,   184},  //11111111
+                { -1,                   -1,     -1,     -1},
+        };
+        struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
+                {EM2874_R80_GPIO,       0xef,   0xff,   1},    //11101111
+                {EM2874_R80_GPIO,       0xaf,   0xff,   101},  //10101111  init bit 7
+                {EM2874_R80_GPIO,       0xef,   0xff,   118},   //11101111
+
+
+//per il tuner?
+                {EM2874_R80_GPIO,       0xef,   0xff,   1},  //11101111
+                {EM2874_R80_GPIO,       0xcf,   0xff,   11},    //11001111  init bit 6
+                {EM2874_R80_GPIO,       0xef,   0xff,   64},  //11101111
+
+                {EM2874_R80_GPIO,       0xcf,   0xff,   101},  //11001111  init bit 6
+                {EM2874_R80_GPIO,       0xef,   0xff,   101},  //11101111
+                {EM2874_R80_GPIO,       0xcf,   0xff,   11},  //11001111  init bit 6
+                {EM2874_R80_GPIO,       0xef,   0xff,   101},  //11101111
+
+//              {EM2874_R80_GPIO,       0x6f,   0xff,   10},    //01101111
+//              {EM2874_R80_GPIO,       0x6d,   0xff,   100},  //01101101  init bit 2
+                { -1,                   -1,     -1,     -1},
+        };
+
+        struct em28xx_reg_seq hauppauge_hvr930c_end2[] = {
+//              {EM2874_R80_GPIO,       0x6f,   0xff,   124},  //01101111
+//              {EM2874_R80_GPIO,       0x4f,   0xff,   11},   //01001111  init bit 6
+//              {EM2874_R80_GPIO,       0x6f,   0xff,   1},    //01101111
+//              {EM2874_R80_GPIO,       0x4f,   0xff,   10},   //01001111  init bit 6
+//              {EM2874_R80_GPIO,       0x6f,   0xff,   100},  //01101111
+//              {0xd            ,       0x42,   0xff,   101},  //11111111
+                { -1,                   -1,     -1,     -1},
+        };
+        struct {
+                unsigned char r[4];
+                int len;
+        } regs[] = {
+                {{ 0x06, 0x02, 0x00, 0x31 }, 4},
+                {{ 0x01, 0x02 }, 2},
+                {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
+                {{ 0x01, 0x00 }, 2},
+                {{ 0x01, 0x00, 0xff, 0xaf }, 4},
+                {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
+                {{ 0x01, 0x00 }, 2},
+                {{ 0x01, 0x00, 0x73, 0xaf }, 4},
+                {{ 0x04, 0x00 }, 2},
+                {{ 0x00, 0x04 }, 2},
+                {{ 0x00, 0x04, 0x00, 0x0a }, 4},
+                {{ 0x04, 0x14 }, 2},
+                {{ 0x04, 0x14, 0x00, 0x00 }, 4},
+        };
+
+        em28xx_gpio_set(dev, hauppauge_hvr930c_init);
+        em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
+        msleep(10);
+        em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
+        msleep(10);
+
+        dev->i2c_client.addr = 0x82 >> 1;
+
+        for (i = 0; i < ARRAY_SIZE(regs); i++)
+                i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
+        em28xx_gpio_set(dev, hauppauge_hvr930c_end);
+
+        msleep(100);
+
+        em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
+        msleep(30);
+
+        em28xx_gpio_set(dev, hauppauge_hvr930c_end2);
+        msleep(10);
+        em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
+        msleep(10);
+
+}
+
 static void terratec_h5_init(struct em28xx *dev)
 {
         int i;
@@ -788,6 +880,47 @@ static int em28xx_dvb_init(struct em28xx *dev)
                         mfe_shared = 1;
                 }
                 break;
+        case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
+                hauppauge_hvr930c_init(dev);
+
+                dvb->dont_attach_fe1 = 1;
+
+                dvb->fe[0] = dvb_attach(drxk_attach, &hauppauge_930c_drxk, &dev->i2c_adap, &dvb->fe[1]);
+                if (!dvb->fe[0]) {
+                        result = -EINVAL;
+                        goto out_free;
+                }
+                /* FIXME: do we need a pll semaphore? */
+                dvb->fe[0]->sec_priv = dvb;
+                sema_init(&dvb->pll_mutex, 1);
+                dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
+                dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
+                dvb->fe[1]->id = 1;
+
+                /* Attach xc5000 */
+                struct xc5000_config cfg;
+                memset(&cfg, 0, sizeof(cfg));
+                cfg.i2c_address  = 0x61;
+                //cfg.if_khz = 4570; //FIXME
+                cfg.if_khz = 4000; //FIXME (should be ok) read from i2c traffic
+
+                if (dvb->fe[0]->ops.i2c_gate_ctrl)
+                        dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
+                if (!dvb_attach(xc5000_attach, dvb->fe[0], &dev->i2c_adap, &cfg)) {
+                        result = -EINVAL;
+                        goto out_free;
+                }
+
+                if (dvb->fe[0]->ops.i2c_gate_ctrl)
+                        dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
+
+                /* Hack - needed by drxk/tda18271c2dd */
+                dvb->fe[1]->tuner_priv = dvb->fe[0]->tuner_priv;
+                memcpy(&dvb->fe[1]->ops.tuner_ops,
+                       &dvb->fe[0]->ops.tuner_ops,
+                       sizeof(dvb->fe[0]->ops.tuner_ops));
+
+                break;
         case EM2884_BOARD_TERRATEC_H5:
                 terratec_h5_init(dev);
 
@@ -798,7 +931,6 @@ static int em28xx_dvb_init(struct em28xx *dev)
                         result = -EINVAL;
                         goto out_free;
                 }
-
                 /* FIXME: do we need a pll semaphore? */
                 dvb->fe[0]->sec_priv = dvb;
                 sema_init(&dvb->pll_mutex, 1);
@@ -845,6 +977,8 @@ static int em28xx_dvb_init(struct em28xx *dev)
         }
         /* define general-purpose callback pointer */
         dvb->fe[0]->callback = em28xx_tuner_callback;
+        if (dvb->fe[1])
+            dvb->fe[1]->callback = em28xx_tuner_callback;
 
         /* register everything */
         result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h
index 2a2cb7ed0014..c16ae8f95642 100644
--- a/drivers/media/video/em28xx/em28xx.h
+++ b/drivers/media/video/em28xx/em28xx.h
@@ -38,6 +38,7 @@
 #include <media/videobuf-dvb.h>
 #endif
 #include "tuner-xc2028.h"
+#include "xc5000.h"
 #include "em28xx-reg.h"
 
 /* Boards supported by driver */
@@ -121,6 +122,7 @@
 #define EM28174_BOARD_PCTV_290E                   78
 #define EM2884_BOARD_TERRATEC_H5                  79
 #define EM28174_BOARD_PCTV_460E                   80
+#define EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C     81
 
 /* Limits minimum and default number of buffers */
 #define EM28XX_MIN_BUF 4