From 4bf8b679029127fd84e9bfeb8710723a426e89ad Mon Sep 17 00:00:00 2001 From: =?utf8?q?Jean-Fran=C3=A7ois=20Moine?= Date: Sat, 25 Sep 2010 06:12:44 -0300 Subject: [PATCH] V4L/DVB: gspca - sonixj: Propagate USB errors to higher level MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Signed-off-by: Jean-François Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/sonixj.c | 85 +++++++++++++++++++++++------- 1 file changed, 67 insertions(+), 18 deletions(-) diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c index 025f9ba5c681..583c3410a2c2 100644 --- a/drivers/media/video/gspca/sonixj.c +++ b/drivers/media/video/gspca/sonixj.c @@ -1326,13 +1326,17 @@ static const u8 (*sensor_init[])[8] = { static void reg_r(struct gspca_dev *gspca_dev, u16 value, int len) { + int ret; + + if (gspca_dev->usb_err < 0) + return; #ifdef GSPCA_DEBUG if (len > USB_BUF_SZ) { err("reg_r: buffer overflow"); return; } #endif - usb_control_msg(gspca_dev->dev, + ret = usb_control_msg(gspca_dev->dev, usb_rcvctrlpipe(gspca_dev->dev, 0), 0, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, @@ -1340,15 +1344,23 @@ static void reg_r(struct gspca_dev *gspca_dev, gspca_dev->usb_buf, len, 500); PDEBUG(D_USBI, "reg_r [%02x] -> %02x", value, gspca_dev->usb_buf[0]); + if (ret < 0) { + err("reg_r err %d", ret); + gspca_dev->usb_err = ret; + } } static void reg_w1(struct gspca_dev *gspca_dev, u16 value, u8 data) { + int ret; + + if (gspca_dev->usb_err < 0) + return; PDEBUG(D_USBO, "reg_w1 [%04x] = %02x", value, data); gspca_dev->usb_buf[0] = data; - usb_control_msg(gspca_dev->dev, + ret = usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0), 0x08, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, @@ -1356,12 +1368,20 @@ static void reg_w1(struct gspca_dev *gspca_dev, 0, gspca_dev->usb_buf, 1, 500); + if (ret < 0) { + err("reg_w1 err %d", ret); + gspca_dev->usb_err = ret; + } } static void reg_w(struct gspca_dev *gspca_dev, u16 value, const u8 *buffer, int len) { + int ret; + + if (gspca_dev->usb_err < 0) + return; PDEBUG(D_USBO, "reg_w [%04x] = %02x %02x ..", value, buffer[0], buffer[1]); #ifdef GSPCA_DEBUG @@ -1371,20 +1391,27 @@ static void reg_w(struct gspca_dev *gspca_dev, } #endif memcpy(gspca_dev->usb_buf, buffer, len); - usb_control_msg(gspca_dev->dev, + ret = usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0), 0x08, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, value, 0, gspca_dev->usb_buf, len, 500); + if (ret < 0) { + err("reg_w err %d", ret); + gspca_dev->usb_err = ret; + } } /* I2C write 1 byte */ static void i2c_w1(struct gspca_dev *gspca_dev, u8 reg, u8 val) { struct sd *sd = (struct sd *) gspca_dev; + int ret; + if (gspca_dev->usb_err < 0) + return; PDEBUG(D_USBO, "i2c_w1 [%02x] = %02x", reg, val); switch (sd->sensor) { case SENSOR_ADCM1700: @@ -1403,7 +1430,7 @@ static void i2c_w1(struct gspca_dev *gspca_dev, u8 reg, u8 val) gspca_dev->usb_buf[5] = 0; gspca_dev->usb_buf[6] = 0; gspca_dev->usb_buf[7] = 0x10; - usb_control_msg(gspca_dev->dev, + ret = usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0), 0x08, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, @@ -1411,16 +1438,24 @@ static void i2c_w1(struct gspca_dev *gspca_dev, u8 reg, u8 val) 0, gspca_dev->usb_buf, 8, 500); + if (ret < 0) { + err("i2c_w1 err %d", ret); + gspca_dev->usb_err = ret; + } } /* I2C write 8 bytes */ static void i2c_w8(struct gspca_dev *gspca_dev, const u8 *buffer) { + int ret; + + if (gspca_dev->usb_err < 0) + return; PDEBUG(D_USBO, "i2c_w8 [%02x] = %02x ..", buffer[2], buffer[3]); memcpy(gspca_dev->usb_buf, buffer, 8); - usb_control_msg(gspca_dev->dev, + ret = usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0), 0x08, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, @@ -1428,6 +1463,10 @@ static void i2c_w8(struct gspca_dev *gspca_dev, gspca_dev->usb_buf, 8, 500); msleep(2); + if (ret < 0) { + err("i2c_w8 err %d", ret); + gspca_dev->usb_err = ret; + } } /* sensor read 'len' (1..5) bytes in gspca_dev->usb_buf */ @@ -1529,6 +1568,8 @@ static void mi0360_probe(struct gspca_dev *gspca_dev) if (val != 0xffff) break; } + if (gspca_dev->usb_err < 0) + return; switch (val) { case 0x823a: PDEBUG(D_PROBE, "Sensor mt9v111"); @@ -1556,6 +1597,8 @@ static void ov7630_probe(struct gspca_dev *gspca_dev) val = (gspca_dev->usb_buf[3] << 8) | gspca_dev->usb_buf[4]; reg_w1(gspca_dev, 0x01, 0x29); reg_w1(gspca_dev, 0x17, 0x42); + if (gspca_dev->usb_err < 0) + return; if (val == 0x7628) { /* soi768 */ sd->sensor = SENSOR_SOI768; /*fixme: only valid for 0c45:613e?*/ @@ -1593,6 +1636,8 @@ static void ov7648_probe(struct gspca_dev *gspca_dev) val = (gspca_dev->usb_buf[3] << 8) | gspca_dev->usb_buf[4]; reg_w1(gspca_dev, 0x01, 0x29); reg_w1(gspca_dev, 0x17, 0x42); + if (gspca_dev->usb_err < 0) + return; if (val == 0x1030) { /* po1030 */ PDEBUG(D_PROBE, "Sensor po1030"); sd->sensor = SENSOR_PO1030; @@ -1631,6 +1676,8 @@ static void po2030n_probe(struct gspca_dev *gspca_dev) val = (gspca_dev->usb_buf[3] << 8) | gspca_dev->usb_buf[4]; reg_w1(gspca_dev, 0x01, 0x29); reg_w1(gspca_dev, 0x17, 0x42); + if (gspca_dev->usb_err < 0) + return; if (val == 0x2030) { PDEBUG(D_PROBE, "Sensor po2030n"); /* sd->sensor = SENSOR_PO2030N; */ @@ -1828,6 +1875,8 @@ static int sd_init(struct gspca_dev *gspca_dev) reg_w1(gspca_dev, 0xf1, gspca_dev->usb_buf[0]); reg_r(gspca_dev, 0x00, 1); /* get sonix chip id */ regF1 = gspca_dev->usb_buf[0]; + if (gspca_dev->usb_err < 0) + return gspca_dev->usb_err; PDEBUG(D_PROBE, "Sonix chip id: %02x", regF1); switch (sd->bridge) { case BRIDGE_SN9C102P: @@ -1881,7 +1930,7 @@ static int sd_init(struct gspca_dev *gspca_dev) gspca_dev->ctrl_dis = ctrl_dis[sd->sensor]; - return 0; + return gspca_dev->usb_err; } static u32 setexposure(struct gspca_dev *gspca_dev, @@ -2541,7 +2590,7 @@ static int sd_start(struct gspca_dev *gspca_dev) setcolors(gspca_dev); setautogain(gspca_dev); setfreq(gspca_dev); - return 0; + return gspca_dev->usb_err; } static void sd_stopN(struct gspca_dev *gspca_dev) @@ -2704,7 +2753,7 @@ static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val) sd->brightness = val; if (gspca_dev->streaming) setbrightness(gspca_dev); - return 0; + return gspca_dev->usb_err; } static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val) @@ -2722,7 +2771,7 @@ static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val) sd->contrast = val; if (gspca_dev->streaming) setcontrast(gspca_dev); - return 0; + return gspca_dev->usb_err; } static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val) @@ -2740,7 +2789,7 @@ static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val) sd->colors = val; if (gspca_dev->streaming) setcolors(gspca_dev); - return 0; + return gspca_dev->usb_err; } static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val) @@ -2758,7 +2807,7 @@ static int sd_setblue_balance(struct gspca_dev *gspca_dev, __s32 val) sd->blue = val; if (gspca_dev->streaming) setredblue(gspca_dev); - return 0; + return gspca_dev->usb_err; } static int sd_getblue_balance(struct gspca_dev *gspca_dev, __s32 *val) @@ -2776,7 +2825,7 @@ static int sd_setred_balance(struct gspca_dev *gspca_dev, __s32 val) sd->red = val; if (gspca_dev->streaming) setredblue(gspca_dev); - return 0; + return gspca_dev->usb_err; } static int sd_getred_balance(struct gspca_dev *gspca_dev, __s32 *val) @@ -2794,7 +2843,7 @@ static int sd_setgamma(struct gspca_dev *gspca_dev, __s32 val) sd->gamma = val; if (gspca_dev->streaming) setgamma(gspca_dev); - return 0; + return gspca_dev->usb_err; } static int sd_getgamma(struct gspca_dev *gspca_dev, __s32 *val) @@ -2812,7 +2861,7 @@ static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val) sd->autogain = val; if (gspca_dev->streaming) setautogain(gspca_dev); - return 0; + return gspca_dev->usb_err; } static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val) @@ -2830,7 +2879,7 @@ static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val) sd->sharpness = val; if (gspca_dev->streaming) setsharpness(sd); - return 0; + return gspca_dev->usb_err; } static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val) @@ -2848,7 +2897,7 @@ static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val) sd->vflip = val; if (gspca_dev->streaming) setvflip(sd); - return 0; + return gspca_dev->usb_err; } static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val) @@ -2866,7 +2915,7 @@ static int sd_setinfrared(struct gspca_dev *gspca_dev, __s32 val) sd->infrared = val; if (gspca_dev->streaming) setinfrared(sd); - return 0; + return gspca_dev->usb_err; } static int sd_getinfrared(struct gspca_dev *gspca_dev, __s32 *val) @@ -2884,7 +2933,7 @@ static int sd_setfreq(struct gspca_dev *gspca_dev, __s32 val) sd->freq = val; if (gspca_dev->streaming) setfreq(gspca_dev); - return 0; + return gspca_dev->usb_err; } static int sd_getfreq(struct gspca_dev *gspca_dev, __s32 *val) -- 2.20.1