[media] Add initial support for Terratec H5

Not working yet. There are some fixes at the DRX-K that are needed
for it to work.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 109 insertions, 1 deletions

diff --git a/drivers/media/video/em28xx/em28xx-dvb.c b/drivers/media/video/em28xx/em28xx-dvb.c
index 012ab8ec19cf..b8686c1eb3b6 100644
--- a/drivers/media/video/em28xx/em28xx-dvb.c
+++ b/drivers/media/video/em28xx/em28xx-dvb.c
@@ -1,7 +1,7 @@
 /*
  DVB device driver for em28xx
 
- (c) 2008 Mauro Carvalho Chehab <mchehab@infradead.org>
+ (c) 2008-2011 Mauro Carvalho Chehab <mchehab@infradead.org>
 
  (c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com>
         - Fixes for the driver to properly work with HVR-950
@@ -40,6 +40,8 @@
 #include "s921.h"
 #include "drxd.h"
 #include "cxd2820r.h"
+#include "tda18271c2dd.h"
+#include "drxk.h"
 
 MODULE_DESCRIPTION("driver for em28xx based DVB cards");
 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
@@ -73,6 +75,10 @@ struct em28xx_dvb {
         struct dmx_frontend        fe_hw;
         struct dmx_frontend        fe_mem;
         struct dvb_net             net;
+
+        /* Due to DRX-D - probably need changes */
+        int (*gate_ctrl)(struct dvb_frontend *, int);
+        struct semaphore      pll_mutex;
 };
 
 
@@ -295,6 +301,78 @@ static struct drxd_config em28xx_drxd = {
         .disable_i2c_gate_ctrl = 1,
 };
 
+#define TERRATEC_H5_DRXK_I2C_ADDR       0x29
+
+struct drxk_config terratec_h5_drxk = {
+        .adr = 0x29,
+};
+
+static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
+{
+        struct em28xx_dvb *dvb = fe->sec_priv;
+        int status;
+
+        if (!dvb)
+                return -EINVAL;
+
+        if (enable) {
+                down(&dvb->pll_mutex);
+                status = dvb->gate_ctrl(fe, 1);
+        } else {
+                status = dvb->gate_ctrl(fe, 0);
+                up(&dvb->pll_mutex);
+        }
+        return status;
+}
+
+static void terratec_h5_init(struct em28xx *dev)
+{
+        int i;
+        struct em28xx_reg_seq terratec_h5_init[] = {
+                {EM28XX_R08_GPIO,       0xff,   0xff,   10},
+                {EM2874_R80_GPIO,       0xf6,   0xff,   100},
+                {EM2874_R80_GPIO,       0xf2,   0xff,   50},
+                {EM2874_R80_GPIO,       0xf6,   0xff,   100},
+                { -1,                   -1,     -1,     -1},
+        };
+        struct em28xx_reg_seq terratec_h5_end[] = {
+                {EM2874_R80_GPIO,       0xe6,   0xff,   100},
+                {EM2874_R80_GPIO,       0xa6,   0xff,   50},
+                {EM2874_R80_GPIO,       0xe6,   0xff,   100},
+                { -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, terratec_h5_init);
+        em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
+        msleep(10);
+        em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
+        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, terratec_h5_end);
+};
+
 static int mt352_terratec_xs_init(struct dvb_frontend *fe)
 {
         /* Values extracted from a USB trace of the Terratec Windows driver */
@@ -689,6 +767,36 @@ static int dvb_init(struct em28xx *dev)
                         }
                 }
                 break;
+        case EM2884_BOARD_TERRATEC_H5:
+                terratec_h5_init(dev);
+
+                /* dvb->fe[1] will be DVB-C, and dvb->fe[0] will be DVB-T */
+                dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap, &dvb->fe[1]);
+                if (!dvb->fe[0] || !dvb->fe[1]) {
+                        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]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
+                dvb->fe[1]->id = 1;
+
+                /* Attach tda18271 */
+                if (dvb->fe[0]->ops.i2c_gate_ctrl)
+                        dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
+                if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap, 0x60)) {
+                        result = -EINVAL;
+                        goto out_free;
+                }
+                if (dvb->fe[0]->ops.i2c_gate_ctrl)
+                        dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
+                if (dvb->fe[1]->ops.i2c_gate_ctrl)
+                        dvb->fe[1]->ops.i2c_gate_ctrl(dvb->fe[1], 1);
+
+                break;
         default:
                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
                                 " isn't supported yet\n");