From 6a709749228c5f76f128c69c16f39a52d639bd96 Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Wed, 3 Sep 2008 16:48:10 -0300 Subject: V4L/DVB (8718): gspca: suspend/resume added. Signed-off-by: Jean-Francois Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/sunplus.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/media/video/gspca/sunplus.c') diff --git a/drivers/media/video/gspca/sunplus.c b/drivers/media/video/gspca/sunplus.c index 54efa48bee0..c935384fc23 100644 --- a/drivers/media/video/gspca/sunplus.c +++ b/drivers/media/video/gspca/sunplus.c @@ -1456,6 +1456,10 @@ static struct usb_driver sd_driver = { .id_table = device_table, .probe = sd_probe, .disconnect = gspca_disconnect, +#ifdef CONFIG_PM + .suspend = gspca_suspend, + .resume = gspca_resume, +#endif }; /* -- module insert / remove -- */ -- cgit v1.2.3 From 012d6b029ec17f45374303bbdccd0bc206725751 Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Wed, 3 Sep 2008 17:12:16 -0300 Subject: V4L/DVB (8822): gspca: Change some subdriver functions for suspend/resume. - new function 'init' called on probe and resume - remove the functions 'open' and 'closed' - 'stopN' and 'stop0' are optional Signed-off-by: Jean-Francois Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/sunplus.c | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-) (limited to 'drivers/media/video/gspca/sunplus.c') diff --git a/drivers/media/video/gspca/sunplus.c b/drivers/media/video/gspca/sunplus.c index c935384fc23..bddf73360c2 100644 --- a/drivers/media/video/gspca/sunplus.c +++ b/drivers/media/video/gspca/sunplus.c @@ -848,8 +848,8 @@ static int sd_config(struct gspca_dev *gspca_dev, return 0; } -/* this function is called at open time */ -static int sd_open(struct gspca_dev *gspca_dev) +/* this function is called at probe and resume time */ +static int sd_init(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; struct usb_device *dev = gspca_dev->dev; @@ -1069,14 +1069,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev) } } -static void sd_stop0(struct gspca_dev *gspca_dev) -{ -} - -static void sd_close(struct gspca_dev *gspca_dev) -{ -} - static void sd_pkt_scan(struct gspca_dev *gspca_dev, struct gspca_frame *frame, /* target */ __u8 *data, /* isoc packet */ @@ -1369,11 +1361,9 @@ static const struct sd_desc sd_desc = { .ctrls = sd_ctrls, .nctrls = ARRAY_SIZE(sd_ctrls), .config = sd_config, - .open = sd_open, + .init = sd_init, .start = sd_start, .stopN = sd_stopN, - .stop0 = sd_stop0, - .close = sd_close, .pkt_scan = sd_pkt_scan, }; -- cgit v1.2.3 From 8295d99ee5340f1e62b53c8adc979e0789299445 Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Wed, 3 Sep 2008 17:12:19 -0300 Subject: V4L/DVB (8829): gspca: Have a clean kmalloc-ated buffer for USB exchanges. The USB buffer may be used for DMA and there may be a caching problem if the buffer is part of the device structure. Thanks to Alan Stern. Signed-off-by: Jean-Francois Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/sunplus.c | 147 +++++++++++++++++++----------------- 1 file changed, 78 insertions(+), 69 deletions(-) (limited to 'drivers/media/video/gspca/sunplus.c') diff --git a/drivers/media/video/gspca/sunplus.c b/drivers/media/video/gspca/sunplus.c index bddf73360c2..1cfcc6c4955 100644 --- a/drivers/media/video/gspca/sunplus.c +++ b/drivers/media/video/gspca/sunplus.c @@ -449,31 +449,47 @@ static const __u8 qtable_spca504_default[2][64] = { 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e} }; -static void reg_r(struct usb_device *dev, - __u16 req, - __u16 index, - __u8 *buffer, __u16 length) +/* read bytes to gspca_dev->usb_buf */ +static void reg_r(struct gspca_dev *gspca_dev, + __u16 req, + __u16 index, + __u16 len) { - usb_control_msg(dev, - usb_rcvctrlpipe(dev, 0), +#ifdef GSPCA_DEBUG + if (len > USB_BUF_SZ) { + err("reg_r: buffer overflow"); + return; + } +#endif + usb_control_msg(gspca_dev->dev, + usb_rcvctrlpipe(gspca_dev->dev, 0), req, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0, /* value */ - index, buffer, length, + index, + len ? gspca_dev->usb_buf : NULL, len, 500); } -static void reg_w(struct usb_device *dev, - __u16 req, - __u16 value, - __u16 index, - __u8 *buffer, __u16 length) +/* write bytes from gspca_dev->usb_buf */ +static void reg_w(struct gspca_dev *gspca_dev, + __u16 req, + __u16 value, + __u16 index, + __u16 len) { - usb_control_msg(dev, - usb_sndctrlpipe(dev, 0), +#ifdef GSPCA_DEBUG + if (len > USB_BUF_SZ) { + err("reg_w: buffer overflow"); + return; + } +#endif + usb_control_msg(gspca_dev->dev, + usb_sndctrlpipe(gspca_dev->dev, 0), req, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, index, buffer, length, + value, index, + len ? gspca_dev->usb_buf : NULL, len, 500); } @@ -634,7 +650,7 @@ static int spca504B_PollingDataReady(struct gspca_dev *gspca_dev) int count = 10; while (--count > 0) { - reg_r(gspca_dev->dev, 0x21, 0, gspca_dev->usb_buf, 1); + reg_r(gspca_dev, 0x21, 0, 1); if ((gspca_dev->usb_buf[0] & 0x01) == 0) break; msleep(10); @@ -644,15 +660,14 @@ static int spca504B_PollingDataReady(struct gspca_dev *gspca_dev) static void spca504B_WaitCmdStatus(struct gspca_dev *gspca_dev) { - struct usb_device *dev = gspca_dev->dev; int count = 50; while (--count > 0) { - reg_r(dev, 0x21, 1, gspca_dev->usb_buf, 1); + reg_r(gspca_dev, 0x21, 1, 1); if (gspca_dev->usb_buf[0] != 0) { gspca_dev->usb_buf[0] = 0; - reg_w(dev, 0x21, 0, 1, gspca_dev->usb_buf, 1); - reg_r(dev, 0x21, 1, gspca_dev->usb_buf, 1); + reg_w(gspca_dev, 0x21, 0, 1, 1); + reg_r(gspca_dev, 0x21, 1, 1); spca504B_PollingDataReady(gspca_dev); break; } @@ -662,16 +677,14 @@ static void spca504B_WaitCmdStatus(struct gspca_dev *gspca_dev) static void spca50x_GetFirmware(struct gspca_dev *gspca_dev) { - struct usb_device *dev = gspca_dev->dev; __u8 *data; - data = kmalloc(64, GFP_KERNEL); - reg_r(dev, 0x20, 0, data, 5); + data = gspca_dev->usb_buf; + reg_r(gspca_dev, 0x20, 0, 5); PDEBUG(D_STREAM, "FirmWare : %d %d %d %d %d ", data[0], data[1], data[2], data[3], data[4]); - reg_r(dev, 0x23, 0, data, 64); - reg_r(dev, 0x23, 1, data, 64); - kfree(data); + reg_r(gspca_dev, 0x23, 0, 64); + reg_r(gspca_dev, 0x23, 1, 64); } static void spca504B_SetSizeType(struct gspca_dev *gspca_dev) @@ -686,21 +699,21 @@ static void spca504B_SetSizeType(struct gspca_dev *gspca_dev) Type = 0; switch (sd->bridge) { case BRIDGE_SPCA533: - reg_w(dev, 0x31, 0, 0, NULL, 0); + reg_w(gspca_dev, 0x31, 0, 0, 0); spca504B_WaitCmdStatus(gspca_dev); rc = spca504B_PollingDataReady(gspca_dev); spca50x_GetFirmware(gspca_dev); gspca_dev->usb_buf[0] = 2; /* type */ - reg_w(dev, 0x24, 0, 8, gspca_dev->usb_buf, 1); - reg_r(dev, 0x24, 8, gspca_dev->usb_buf, 1); + reg_w(gspca_dev, 0x24, 0, 8, 1); + reg_r(gspca_dev, 0x24, 8, 1); gspca_dev->usb_buf[0] = Size; - reg_w(dev, 0x25, 0, 4, gspca_dev->usb_buf, 1); - reg_r(dev, 0x25, 4, gspca_dev->usb_buf, 1); /* size */ + reg_w(gspca_dev, 0x25, 0, 4, 1); + reg_r(gspca_dev, 0x25, 4, 1); /* size */ rc = spca504B_PollingDataReady(gspca_dev); /* Init the cam width height with some values get on init ? */ - reg_w(dev, 0x31, 0, 4, NULL, 0); + reg_w(gspca_dev, 0x31, 0, 4, 0); spca504B_WaitCmdStatus(gspca_dev); rc = spca504B_PollingDataReady(gspca_dev); break; @@ -708,12 +721,12 @@ static void spca504B_SetSizeType(struct gspca_dev *gspca_dev) /* case BRIDGE_SPCA504B: */ /* case BRIDGE_SPCA536: */ gspca_dev->usb_buf[0] = Size; - reg_w(dev, 0x25, 0, 4, gspca_dev->usb_buf, 1); - reg_r(dev, 0x25, 4, gspca_dev->usb_buf, 1); /* size */ + reg_w(gspca_dev, 0x25, 0, 4, 1); + reg_r(gspca_dev, 0x25, 4, 1); /* size */ Type = 6; gspca_dev->usb_buf[0] = Type; - reg_w(dev, 0x27, 0, 0, gspca_dev->usb_buf, 1); - reg_r(dev, 0x27, 0, gspca_dev->usb_buf, 1); /* type */ + reg_w(gspca_dev, 0x27, 0, 0, 1); + reg_r(gspca_dev, 0x27, 0, 1); /* type */ rc = spca504B_PollingDataReady(gspca_dev); break; case BRIDGE_SPCA504: @@ -752,18 +765,15 @@ static void spca504_wait_status(struct gspca_dev *gspca_dev) static void spca504B_setQtable(struct gspca_dev *gspca_dev) { - struct usb_device *dev = gspca_dev->dev; - gspca_dev->usb_buf[0] = 3; - reg_w(dev, 0x26, 0, 0, gspca_dev->usb_buf, 1); - reg_r(dev, 0x26, 0, gspca_dev->usb_buf, 1); + reg_w(gspca_dev, 0x26, 0, 0, 1); + reg_r(gspca_dev, 0x26, 0, 1); spca504B_PollingDataReady(gspca_dev); } static void sp5xx_initContBrigHueRegisters(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; - struct usb_device *dev = gspca_dev->dev; int pollreg = 1; switch (sd->bridge) { @@ -774,20 +784,20 @@ static void sp5xx_initContBrigHueRegisters(struct gspca_dev *gspca_dev) default: /* case BRIDGE_SPCA533: */ /* case BRIDGE_SPCA504B: */ - reg_w(dev, 0, 0, 0x21a7, NULL, 0); /* brightness */ - reg_w(dev, 0, 0x20, 0x21a8, NULL, 0); /* contrast */ - reg_w(dev, 0, 0, 0x21ad, NULL, 0); /* hue */ - reg_w(dev, 0, 1, 0x21ac, NULL, 0); /* sat/hue */ - reg_w(dev, 0, 0x20, 0x21ae, NULL, 0); /* saturation */ - reg_w(dev, 0, 0, 0x21a3, NULL, 0); /* gamma */ + reg_w(gspca_dev, 0, 0, 0x21a7, 0); /* brightness */ + reg_w(gspca_dev, 0, 0x20, 0x21a8, 0); /* contrast */ + reg_w(gspca_dev, 0, 0, 0x21ad, 0); /* hue */ + reg_w(gspca_dev, 0, 1, 0x21ac, 0); /* sat/hue */ + reg_w(gspca_dev, 0, 0x20, 0x21ae, 0); /* saturation */ + reg_w(gspca_dev, 0, 0, 0x21a3, 0); /* gamma */ break; case BRIDGE_SPCA536: - reg_w(dev, 0, 0, 0x20f0, NULL, 0); - reg_w(dev, 0, 0x21, 0x20f1, NULL, 0); - reg_w(dev, 0, 0x40, 0x20f5, NULL, 0); - reg_w(dev, 0, 1, 0x20f4, NULL, 0); - reg_w(dev, 0, 0x40, 0x20f6, NULL, 0); - reg_w(dev, 0, 0, 0x2089, NULL, 0); + reg_w(gspca_dev, 0, 0, 0x20f0, 0); + reg_w(gspca_dev, 0, 0x21, 0x20f1, 0); + reg_w(gspca_dev, 0, 0x40, 0x20f5, 0); + reg_w(gspca_dev, 0, 1, 0x20f4, 0); + reg_w(gspca_dev, 0, 0x40, 0x20f6, 0); + reg_w(gspca_dev, 0, 0, 0x2089, 0); break; } if (pollreg) @@ -799,7 +809,6 @@ static int sd_config(struct gspca_dev *gspca_dev, const struct usb_device_id *id) { struct sd *sd = (struct sd *) gspca_dev; - struct usb_device *dev = gspca_dev->dev; struct cam *cam; cam = &gspca_dev->cam; @@ -811,7 +820,7 @@ static int sd_config(struct gspca_dev *gspca_dev, if (sd->subtype == AiptekMiniPenCam13) { /* try to get the firmware as some cam answer 2.0.1.2.2 * and should be a spca504b then overwrite that setting */ - reg_r(dev, 0x20, 0, gspca_dev->usb_buf, 1); + reg_r(gspca_dev, 0x20, 0, 1); switch (gspca_dev->usb_buf[0]) { case 1: break; /* (right bridge/subtype) */ @@ -860,12 +869,12 @@ static int sd_init(struct gspca_dev *gspca_dev) switch (sd->bridge) { case BRIDGE_SPCA504B: - reg_w(dev, 0x1d, 0, 0, NULL, 0); - reg_w(dev, 0, 1, 0x2306, NULL, 0); - reg_w(dev, 0, 0, 0x0d04, NULL, 0); - reg_w(dev, 0, 0, 0x2000, NULL, 0); - reg_w(dev, 0, 0x13, 0x2301, NULL, 0); - reg_w(dev, 0, 0, 0x2306, NULL, 0); + reg_w(gspca_dev, 0x1d, 0, 0, 0); + reg_w(gspca_dev, 0, 1, 0x2306, 0); + reg_w(gspca_dev, 0, 0, 0x0d04, 0); + reg_w(gspca_dev, 0, 0, 0x2000, 0); + reg_w(gspca_dev, 0, 0x13, 0x2301, 0); + reg_w(gspca_dev, 0, 0, 0x2306, 0); /* fall thru */ case BRIDGE_SPCA533: rc = spca504B_PollingDataReady(gspca_dev); @@ -873,12 +882,12 @@ static int sd_init(struct gspca_dev *gspca_dev) break; case BRIDGE_SPCA536: spca50x_GetFirmware(gspca_dev); - reg_r(dev, 0x00, 0x5002, gspca_dev->usb_buf, 1); + reg_r(gspca_dev, 0x00, 0x5002, 1); gspca_dev->usb_buf[0] = 0; - reg_w(dev, 0x24, 0, 0, gspca_dev->usb_buf, 1); - reg_r(dev, 0x24, 0, gspca_dev->usb_buf, 1); + reg_w(gspca_dev, 0x24, 0, 0, 1); + reg_r(gspca_dev, 0x24, 0, 1); rc = spca504B_PollingDataReady(gspca_dev); - reg_w(dev, 0x34, 0, 0, NULL, 0); + reg_w(gspca_dev, 0x34, 0, 0, 0); spca504B_WaitCmdStatus(gspca_dev); break; case BRIDGE_SPCA504C: /* pccam600 */ @@ -971,12 +980,12 @@ static void sd_start(struct gspca_dev *gspca_dev) /* case BRIDGE_SPCA536: */ if (sd->subtype == MegapixV4 || sd->subtype == LogitechClickSmart820) { - reg_w(dev, 0xf0, 0, 0, NULL, 0); + reg_w(gspca_dev, 0xf0, 0, 0, 0); spca504B_WaitCmdStatus(gspca_dev); - reg_r(dev, 0xf0, 4, NULL, 0); + reg_r(gspca_dev, 0xf0, 4, 0); spca504B_WaitCmdStatus(gspca_dev); } else { - reg_w(dev, 0x31, 0, 4, NULL, 0); + reg_w(gspca_dev, 0x31, 0, 4, 0); spca504B_WaitCmdStatus(gspca_dev); rc = spca504B_PollingDataReady(gspca_dev); } @@ -1045,7 +1054,7 @@ static void sd_stopN(struct gspca_dev *gspca_dev) /* case BRIDGE_SPCA533: */ /* case BRIDGE_SPCA536: */ /* case BRIDGE_SPCA504B: */ - reg_w(dev, 0x31, 0, 0, NULL, 0); + reg_w(gspca_dev, 0x31, 0, 0, 0); spca504B_WaitCmdStatus(gspca_dev); spca504B_PollingDataReady(gspca_dev); break; -- cgit v1.2.3