[PATCH] dvb: usb: cxusb: fixes for new firmware

This patch changes two things:

1) a firmware update made by the vendor, which has to be done in Windows
   for now, changes the DVB-data-pipe from isochronous to bulk: it fixes the
   data distortions (and thus the video-distortions) in DVB-T mode; there is
   no backwards compatibility with the old firmware as it didn't work anyway

2) with the help of Steve Toth some reverse-engineered functionality is now
   named correctly, thank you

Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/media/dvb/dvb-usb/cxusb.c b/drivers/media/dvb/dvb-usb/cxusb.c
index d2be035..3fe383f 100644 (file)
--- a/drivers/media/dvb/dvb-usb/cxusb.c
+++ b/drivers/media/dvb/dvb-usb/cxusb.c
@@ -48,35 +48,26 @@ static int cxusb_ctrl_msg(struct dvb_usb_device *d,
        return 0;
 }
 
-/* I2C */
-static void cxusb_set_i2c_path(struct dvb_usb_device *d, enum cxusb_i2c_pathes path)
+/* GPIO */
+static void cxusb_gpio_tuner(struct dvb_usb_device *d, int onoff)
 {
        struct cxusb_state *st = d->priv;
        u8 o[2],i;
 
-       if (path == st->cur_i2c_path)
+       if (st->gpio_write_state[GPIO_TUNER] == onoff)
                return;
 
-       o[0] = IOCTL_SET_I2C_PATH;
-       switch (path) {
-               case PATH_CX22702:
-                       o[1] = 0;
-                       break;
-               case PATH_TUNER_OTHER:
-                       o[1] = 1;
-                       break;
-               default:
-                       err("unkown i2c path");
-                       return;
-       }
-       cxusb_ctrl_msg(d,CMD_IOCTL,o,2,&i,1);
+       o[0] = GPIO_TUNER;
+       o[1] = onoff;
+       cxusb_ctrl_msg(d,CMD_GPIO_WRITE,o,2,&i,1);
 
        if (i != 0x01)
-               deb_info("i2c_path setting failed.\n");
+               deb_info("gpio_write failed.\n");
 
-       st->cur_i2c_path = path;
+       st->gpio_write_state[GPIO_TUNER] = onoff;
 }
 
+/* I2C */
 static int cxusb_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
 {
        struct dvb_usb_device *d = i2c_get_adapdata(adap);
@@ -92,10 +83,10 @@ static int cxusb_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
 
                switch (msg[i].addr) {
                        case 0x63:
-                               cxusb_set_i2c_path(d,PATH_CX22702);
+                               cxusb_gpio_tuner(d,0);
                                break;
                        default:
-                               cxusb_set_i2c_path(d,PATH_TUNER_OTHER);
+                               cxusb_gpio_tuner(d,1);
                                break;
                }
 
@@ -147,16 +138,20 @@ static struct i2c_algorithm cxusb_i2c_algo = {
 
 static int cxusb_power_ctrl(struct dvb_usb_device *d, int onoff)
 {
-       return 0;
+       u8 b = 0;
+       if (onoff)
+               return cxusb_ctrl_msg(d, CMD_POWER_ON, &b, 1, NULL, 0);
+       else
+               return cxusb_ctrl_msg(d, CMD_POWER_OFF, &b, 1, NULL, 0);
 }
 
 static int cxusb_streaming_ctrl(struct dvb_usb_device *d, int onoff)
 {
        u8 buf[2] = { 0x03, 0x00 };
        if (onoff)
-               cxusb_ctrl_msg(d,0x36, buf, 2, NULL, 0);
+               cxusb_ctrl_msg(d,CMD_STREAMING_ON, buf, 2, NULL, 0);
        else
-               cxusb_ctrl_msg(d,0x37, NULL, 0, NULL, 0);
+               cxusb_ctrl_msg(d,CMD_STREAMING_OFF, NULL, 0, NULL, 0);
 
        return 0;
 }
@@ -182,22 +177,11 @@ static int cxusb_tuner_attach(struct dvb_usb_device *d)
 
 static int cxusb_frontend_attach(struct dvb_usb_device *d)
 {
-       u8 buf[2] = { 0x03, 0x00 };
-       u8 b = 0;
-
-       if (usb_set_interface(d->udev,0,0) < 0)
-               err("set interface to alts=0 failed");
-
-       cxusb_ctrl_msg(d,0xde,&b,0,NULL,0);
-       cxusb_set_i2c_path(d,PATH_TUNER_OTHER);
-       cxusb_ctrl_msg(d,CMD_POWER_OFF, NULL, 0, &b, 1);
-
+       u8 b;
        if (usb_set_interface(d->udev,0,6) < 0)
                err("set interface failed");
 
-       cxusb_ctrl_msg(d,0x36, buf, 2, NULL, 0);
-       cxusb_set_i2c_path(d,PATH_CX22702);
-       cxusb_ctrl_msg(d,CMD_POWER_ON, NULL, 0, &b, 1);
+       cxusb_ctrl_msg(d,CMD_DIGITAL, NULL, 0, &b, 1);
 
        if ((d->fe = cx22702_attach(&cxusb_cx22702_config, &d->i2c_adap)) != NULL)
                return 0;
@@ -237,14 +221,12 @@ static struct dvb_usb_properties cxusb_properties = {
        .generic_bulk_ctrl_endpoint = 0x01,
        /* parameter for the MPEG2-data transfer */
        .urb = {
-               .type = DVB_USB_ISOC,
+               .type = DVB_USB_BULK,
                .count = 5,
                .endpoint = 0x02,
                .u = {
-                       .isoc = {
-                               .framesperurb = 32,
-                               .framesize = 940,
-                               .interval = 5,
+                       .bulk = {
+                               .buffersize = 8192,
                        }
                }
        },

diff --git a/drivers/media/dvb/dvb-usb/cxusb.h b/drivers/media/dvb/dvb-usb/cxusb.h
index 1d79016..135c2a8 100644 (file)
--- a/drivers/media/dvb/dvb-usb/cxusb.h
+++ b/drivers/media/dvb/dvb-usb/cxusb.h
@@ -1,30 +1,31 @@
 #ifndef _DVB_USB_CXUSB_H_
 #define _DVB_USB_CXUSB_H_
 
-#define DVB_USB_LOG_PREFIX "digitv"
+#define DVB_USB_LOG_PREFIX "cxusb"
 #include "dvb-usb.h"
 
 extern int dvb_usb_cxusb_debug;
 #define deb_info(args...)   dprintk(dvb_usb_cxusb_debug,0x01,args)
 
 /* usb commands - some of it are guesses, don't have a reference yet */
-#define CMD_I2C_WRITE    0x08
-#define CMD_I2C_READ     0x09
+#define CMD_I2C_WRITE     0x08
+#define CMD_I2C_READ      0x09
 
-#define CMD_IOCTL        0x0e
-#define    IOCTL_SET_I2C_PATH 0x02
+#define CMD_GPIO_READ     0x0d
+#define CMD_GPIO_WRITE    0x0e
+#define     GPIO_TUNER         0x02
 
-#define CMD_POWER_OFF    0x50
-#define CMD_POWER_ON     0x51
+#define CMD_POWER_OFF     0xdc
+#define CMD_POWER_ON      0xde
 
-enum cxusb_i2c_pathes {
-       PATH_UNDEF       = 0x00,
-       PATH_CX22702     = 0x01,
-       PATH_TUNER_OTHER = 0x02,
-};
+#define CMD_STREAMING_ON  0x36
+#define CMD_STREAMING_OFF 0x37
+
+#define CMD_ANALOG        0x50
+#define CMD_DIGITAL       0x51
 
 struct cxusb_state {
-       enum cxusb_i2c_pathes cur_i2c_path;
+       u8 gpio_write_state[3];
 };
 
 #endif