From 1f33de0f8b91b70ccadb44958f09aa5bee7c1a44 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sun, 5 Sep 2010 16:05:22 -0300 Subject: V4L/DVB: gspca_xirlink_cit: New gspca subdriver replacing v4l1 usbvideo/ibmcam.c The old usbvideo ibmcam driver needs to be replaced with a v4l2 driver preferably using the gspca webcam framework rather then the old usbvideo framework. This new gspca sub driver sets a first step in that direction. The ibmcam driver supports 4 different model webcams. This new driver (for now) only supports Model 3 cameras, as my test cam is a Model 3 cam, or so I thought. Upon reading: http://www.linux-usb.org/ibmcam/ I learned that the IBM Netcamera Pro I have even though having the same usb id and the same bcd version is different from the Model 3 cameras supported by the ibmcam driver. So this new gscpa subdriver supports Model 3 cameras (untested), and the IBM Netcamera Pro. Currently use with the IBM Netcamera Pro requires a module parameter. I hope to be able to autodetect which is which in the future. Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- include/linux/videodev2.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 61490c6dcdb..0aef67e0281 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -363,6 +363,7 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_OV518 v4l2_fourcc('O', '5', '1', '8') /* ov518 JPEG */ #define V4L2_PIX_FMT_STV0680 v4l2_fourcc('S', '6', '8', '0') /* stv0680 bayer */ #define V4L2_PIX_FMT_TM6000 v4l2_fourcc('T', 'M', '6', '0') /* tm5600/tm60x0 */ +#define V4L2_PIX_FMT_CIT_YYVYUY v4l2_fourcc('C', 'I', 'T', 'V') /* one line of Y then 1 line of VYUY */ /* * F O R M A T E N U M E R A T I O N -- cgit v1.2.3 From b517af722860dcf9878754217575137be35ea0cc Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sun, 5 Sep 2010 16:30:30 -0300 Subject: V4L/DVB: gspca_konica: New gspca subdriver for konica chipset using cams This new driver replaces the (known to not work / crash) usbvideo konicawc driver. Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/Kconfig | 9 + drivers/media/video/gspca/Makefile | 2 + drivers/media/video/gspca/konica.c | 653 +++++++++++++++++++++++++++++++++++ drivers/media/video/usbvideo/Kconfig | 5 +- include/linux/videodev2.h | 1 + 5 files changed, 669 insertions(+), 1 deletion(-) create mode 100644 drivers/media/video/gspca/konica.c (limited to 'include/linux') diff --git a/drivers/media/video/gspca/Kconfig b/drivers/media/video/gspca/Kconfig index cab7be7eb63..dda56ff834f 100644 --- a/drivers/media/video/gspca/Kconfig +++ b/drivers/media/video/gspca/Kconfig @@ -77,6 +77,15 @@ config USB_GSPCA_JEILINJ To compile this driver as a module, choose M here: the module will be called gspca_jeilinj. +config USB_GSPCA_KONICA + tristate "Konica USB Camera V4L2 driver" + depends on VIDEO_V4L2 && USB_GSPCA + help + Say Y here if you want support for cameras based on the Konica chip. + + To compile this driver as a module, choose M here: the + module will be called gspca_konica. + config USB_GSPCA_MARS tristate "Mars USB Camera Driver" depends on VIDEO_V4L2 && USB_GSPCA diff --git a/drivers/media/video/gspca/Makefile b/drivers/media/video/gspca/Makefile index ea89ac1bd54..24e695b8b07 100644 --- a/drivers/media/video/gspca/Makefile +++ b/drivers/media/video/gspca/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_USB_GSPCA_CPIA1) += gspca_cpia1.o obj-$(CONFIG_USB_GSPCA_ETOMS) += gspca_etoms.o obj-$(CONFIG_USB_GSPCA_FINEPIX) += gspca_finepix.o obj-$(CONFIG_USB_GSPCA_JEILINJ) += gspca_jeilinj.o +obj-$(CONFIG_USB_GSPCA_KONICA) += gspca_konica.o obj-$(CONFIG_USB_GSPCA_MARS) += gspca_mars.o obj-$(CONFIG_USB_GSPCA_MR97310A) += gspca_mr97310a.o obj-$(CONFIG_USB_GSPCA_OV519) += gspca_ov519.o @@ -43,6 +44,7 @@ gspca_cpia1-objs := cpia1.o gspca_etoms-objs := etoms.o gspca_finepix-objs := finepix.o gspca_jeilinj-objs := jeilinj.o +gspca_konica-objs := konica.o gspca_mars-objs := mars.o gspca_mr97310a-objs := mr97310a.o gspca_ov519-objs := ov519.o diff --git a/drivers/media/video/gspca/konica.c b/drivers/media/video/gspca/konica.c new file mode 100644 index 00000000000..8cdf1af4257 --- /dev/null +++ b/drivers/media/video/gspca/konica.c @@ -0,0 +1,653 @@ +/* + * Driver for USB webcams based on Konica chipset. This + * chipset is used in Intel YC76 camera. + * + * Copyright (C) 2010 Hans de Goede + * + * Based on the usbvideo v4l1 konicawc driver which is: + * + * Copyright (C) 2002 Simon Evans + * + * The code for making gspca work with a webcam with 2 isoc endpoints was + * taken from the benq gspca subdriver which is: + * + * Copyright (C) 2009 Jean-Francois Moine (http://moinejf.free.fr) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#define MODULE_NAME "konica" + +#include +#include "gspca.h" + +MODULE_AUTHOR("Hans de Goede "); +MODULE_DESCRIPTION("Konica chipset USB Camera Driver"); +MODULE_LICENSE("GPL"); + +#define WHITEBAL_REG 0x01 +#define BRIGHTNESS_REG 0x02 +#define SHARPNESS_REG 0x03 +#define CONTRAST_REG 0x04 +#define SATURATION_REG 0x05 + +/* specific webcam descriptor */ +struct sd { + struct gspca_dev gspca_dev; /* !! must be the first item */ + struct urb *last_data_urb; + u8 snapshot_pressed; + u8 brightness; + u8 contrast; + u8 saturation; + u8 whitebal; + u8 sharpness; +}; + +/* V4L2 controls supported by the driver */ +static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val); +static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val); +static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val); +static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val); +static int sd_setsaturation(struct gspca_dev *gspca_dev, __s32 val); +static int sd_getsaturation(struct gspca_dev *gspca_dev, __s32 *val); +static int sd_setwhitebal(struct gspca_dev *gspca_dev, __s32 val); +static int sd_getwhitebal(struct gspca_dev *gspca_dev, __s32 *val); +static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val); +static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val); + +static const struct ctrl sd_ctrls[] = { +#define SD_BRIGHTNESS 0 + { + { + .id = V4L2_CID_BRIGHTNESS, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Brightness", + .minimum = 0, + .maximum = 9, + .step = 1, +#define BRIGHTNESS_DEFAULT 4 + .default_value = BRIGHTNESS_DEFAULT, + .flags = 0, + }, + .set = sd_setbrightness, + .get = sd_getbrightness, + }, +#define SD_CONTRAST 1 + { + { + .id = V4L2_CID_CONTRAST, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "contrast", + .minimum = 0, + .maximum = 9, + .step = 4, +#define CONTRAST_DEFAULT 10 + .default_value = CONTRAST_DEFAULT, + .flags = 0, + }, + .set = sd_setcontrast, + .get = sd_getcontrast, + }, +#define SD_SATURATION 2 + { + { + .id = V4L2_CID_SATURATION, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Saturation", + .minimum = 0, + .maximum = 9, + .step = 1, +#define SATURATION_DEFAULT 4 + .default_value = SATURATION_DEFAULT, + .flags = 0, + }, + .set = sd_setsaturation, + .get = sd_getsaturation, + }, +#define SD_WHITEBAL 3 + { + { + .id = V4L2_CID_WHITE_BALANCE_TEMPERATURE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Whitebalance ", + .minimum = 0, + .maximum = 33, + .step = 1, +#define WHITEBAL_DEFAULT 25 + .default_value = WHITEBAL_DEFAULT, + .flags = 0, + }, + .set = sd_setwhitebal, + .get = sd_getwhitebal, + }, +#define SD_SHARPNESS 4 + { + { + .id = V4L2_CID_SHARPNESS, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Sharpness", + .minimum = 0, + .maximum = 9, + .step = 1, +#define SHARPNESS_DEFAULT 4 + .default_value = SHARPNESS_DEFAULT, + .flags = 0, + }, + .set = sd_setsharpness, + .get = sd_getsharpness, + }, +}; + +/* .priv is what goes to register 8 for this mode, known working values: + 0x00 -> 176x144, cropped + 0x01 -> 176x144, cropped + 0x02 -> 176x144, cropped + 0x03 -> 176x144, cropped + 0x04 -> 176x144, binned + 0x05 -> 320x240 + 0x06 -> 320x240 + 0x07 -> 160x120, cropped + 0x08 -> 160x120, cropped + 0x09 -> 160x120, binned (note has 136 lines) + 0x0a -> 160x120, binned (note has 136 lines) + 0x0b -> 160x120, cropped +*/ +static const struct v4l2_pix_format vga_mode[] = { + {160, 120, V4L2_PIX_FMT_KONICA420, V4L2_FIELD_NONE, + .bytesperline = 160, + .sizeimage = 160 * 136 * 3 / 2 + 960, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 0x0a}, + {176, 144, V4L2_PIX_FMT_KONICA420, V4L2_FIELD_NONE, + .bytesperline = 176, + .sizeimage = 176 * 144 * 3 / 2 + 960, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 0x04}, + {320, 240, V4L2_PIX_FMT_KONICA420, V4L2_FIELD_NONE, + .bytesperline = 320, + .sizeimage = 320 * 240 * 3 / 2 + 960, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 0x05}, +}; + +static void sd_isoc_irq(struct urb *urb); + +static void reg_w(struct gspca_dev *gspca_dev, u16 value, u16 index) +{ + struct usb_device *dev = gspca_dev->dev; + int ret; + + if (gspca_dev->usb_err < 0) + return; + ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), + 0x02, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, + index, + NULL, + 0, + 1000); + if (ret < 0) { + PDEBUG(D_ERR, "reg_w err %d", ret); + gspca_dev->usb_err = ret; + } +} + +static void reg_r(struct gspca_dev *gspca_dev, u16 value, u16 index) +{ + struct usb_device *dev = gspca_dev->dev; + int ret; + + if (gspca_dev->usb_err < 0) + return; + ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + 0x03, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, + index, + gspca_dev->usb_buf, + 2, + 1000); + if (ret < 0) { + PDEBUG(D_ERR, "reg_w err %d", ret); + gspca_dev->usb_err = ret; + } +} + +static void konica_stream_on(struct gspca_dev *gspca_dev) +{ + reg_w(gspca_dev, 1, 0x0b); +} + +static void konica_stream_off(struct gspca_dev *gspca_dev) +{ + reg_w(gspca_dev, 0, 0x0b); +} + +/* this function is called at probe time */ +static int sd_config(struct gspca_dev *gspca_dev, + const struct usb_device_id *id) +{ + struct sd *sd = (struct sd *) gspca_dev; + + gspca_dev->cam.cam_mode = vga_mode; + gspca_dev->cam.nmodes = ARRAY_SIZE(vga_mode); + gspca_dev->cam.no_urb_create = 1; + /* The highest alt setting has an isoc packetsize of 0, so we + don't want to use it */ + gspca_dev->nbalt--; + + sd->brightness = BRIGHTNESS_DEFAULT; + sd->contrast = CONTRAST_DEFAULT; + sd->saturation = SATURATION_DEFAULT; + sd->whitebal = WHITEBAL_DEFAULT; + sd->sharpness = SHARPNESS_DEFAULT; + + return 0; +} + +/* this function is called at probe and resume time */ +static int sd_init(struct gspca_dev *gspca_dev) +{ + /* HDG not sure if these 2 reads are needed */ + reg_r(gspca_dev, 0, 0x10); + PDEBUG(D_PROBE, "Reg 0x10 reads: %02x %02x", + gspca_dev->usb_buf[0], gspca_dev->usb_buf[1]); + reg_r(gspca_dev, 0, 0x10); + PDEBUG(D_PROBE, "Reg 0x10 reads: %02x %02x", + gspca_dev->usb_buf[0], gspca_dev->usb_buf[1]); + reg_w(gspca_dev, 0, 0x0d); + + return 0; +} + +static int sd_start(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + struct urb *urb; + int i, n, packet_size; + struct usb_host_interface *alt; + struct usb_interface *intf; + + intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface); + alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt); + if (!alt) { + PDEBUG(D_ERR, "Couldn't get altsetting"); + return -EIO; + } + + packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize); + + reg_w(gspca_dev, sd->brightness, BRIGHTNESS_REG); + reg_w(gspca_dev, sd->whitebal, WHITEBAL_REG); + reg_w(gspca_dev, sd->contrast, CONTRAST_REG); + reg_w(gspca_dev, sd->saturation, SATURATION_REG); + reg_w(gspca_dev, sd->sharpness, SHARPNESS_REG); + + n = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv; + reg_w(gspca_dev, n, 0x08); + + konica_stream_on(gspca_dev); + + if (gspca_dev->usb_err) + return gspca_dev->usb_err; + + /* create 4 URBs - 2 on endpoint 0x83 and 2 on 0x082 */ +#if MAX_NURBS < 4 +#error "Not enough URBs in the gspca table" +#endif +#define SD_NPKT 32 + for (n = 0; n < 4; n++) { + i = n & 1 ? 0 : 1; + packet_size = + le16_to_cpu(alt->endpoint[i].desc.wMaxPacketSize); + urb = usb_alloc_urb(SD_NPKT, GFP_KERNEL); + if (!urb) { + err("usb_alloc_urb failed"); + return -ENOMEM; + } + gspca_dev->urb[n] = urb; + urb->transfer_buffer = usb_buffer_alloc(gspca_dev->dev, + packet_size * SD_NPKT, + GFP_KERNEL, + &urb->transfer_dma); + if (urb->transfer_buffer == NULL) { + err("usb_buffer_alloc failed"); + return -ENOMEM; + } + + urb->dev = gspca_dev->dev; + urb->context = gspca_dev; + urb->transfer_buffer_length = packet_size * SD_NPKT; + urb->pipe = usb_rcvisocpipe(gspca_dev->dev, + n & 1 ? 0x81 : 0x82); + urb->transfer_flags = URB_ISO_ASAP + | URB_NO_TRANSFER_DMA_MAP; + urb->interval = 1; + urb->complete = sd_isoc_irq; + urb->number_of_packets = SD_NPKT; + for (i = 0; i < SD_NPKT; i++) { + urb->iso_frame_desc[i].length = packet_size; + urb->iso_frame_desc[i].offset = packet_size * i; + } + } + + return 0; +} + +static void sd_stopN(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + + konica_stream_off(gspca_dev); +#ifdef CONFIG_INPUT + /* Don't keep the button in the pressed state "forever" if it was + pressed when streaming is stopped */ + if (sd->snapshot_pressed) { + input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0); + input_sync(gspca_dev->input_dev); + sd->snapshot_pressed = 0; + } +#endif +} + +/* reception of an URB */ +static void sd_isoc_irq(struct urb *urb) +{ + struct gspca_dev *gspca_dev = (struct gspca_dev *) urb->context; + struct sd *sd = (struct sd *) gspca_dev; + struct urb *data_urb, *status_urb; + u8 *data; + int i, st; + + PDEBUG(D_PACK, "sd isoc irq"); + if (!gspca_dev->streaming) + return; + + if (urb->status != 0) { + if (urb->status == -ESHUTDOWN) + return; /* disconnection */ +#ifdef CONFIG_PM + if (gspca_dev->frozen) + return; +#endif + PDEBUG(D_ERR, "urb status: %d", urb->status); + st = usb_submit_urb(urb, GFP_ATOMIC); + if (st < 0) + PDEBUG(D_ERR|D_PACK, "resubmit urb error %d", st); + return; + } + + /* if this is a data URB (ep 0x82), wait */ + if (urb->transfer_buffer_length > 32) { + sd->last_data_urb = urb; + return; + } + + status_urb = urb; + data_urb = sd->last_data_urb; + sd->last_data_urb = NULL; + + if (!data_urb || data_urb->start_frame != status_urb->start_frame) { + PDEBUG(D_ERR|D_PACK, "lost sync on frames"); + goto resubmit; + } + + if (data_urb->number_of_packets != status_urb->number_of_packets) { + PDEBUG(D_ERR|D_PACK, + "no packets does not match, data: %d, status: %d", + data_urb->number_of_packets, + status_urb->number_of_packets); + goto resubmit; + } + + for (i = 0; i < status_urb->number_of_packets; i++) { + if (data_urb->iso_frame_desc[i].status || + status_urb->iso_frame_desc[i].status) { + PDEBUG(D_ERR|D_PACK, + "pkt %d data-status %d, status-status %d", i, + data_urb->iso_frame_desc[i].status, + status_urb->iso_frame_desc[i].status); + gspca_dev->last_packet_type = DISCARD_PACKET; + continue; + } + + if (status_urb->iso_frame_desc[i].actual_length != 1) { + PDEBUG(D_ERR|D_PACK, + "bad status packet length %d", + status_urb->iso_frame_desc[i].actual_length); + gspca_dev->last_packet_type = DISCARD_PACKET; + continue; + } + + st = *((u8 *)status_urb->transfer_buffer + + status_urb->iso_frame_desc[i].offset); + + data = (u8 *)data_urb->transfer_buffer + + data_urb->iso_frame_desc[i].offset; + + /* st: 0x80-0xff: frame start with frame number (ie 0-7f) + * otherwise: + * bit 0 0: keep packet + * 1: drop packet (padding data) + * + * bit 4 0 button not clicked + * 1 button clicked + * button is used to `take a picture' (in software) + */ + if (st & 0x80) { + gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); + gspca_frame_add(gspca_dev, FIRST_PACKET, NULL, 0); + } else { +#ifdef CONFIG_INPUT + u8 button_state = st & 0x40 ? 1 : 0; + if (sd->snapshot_pressed != button_state) { + input_report_key(gspca_dev->input_dev, + KEY_CAMERA, + button_state); + input_sync(gspca_dev->input_dev); + sd->snapshot_pressed = button_state; + } +#endif + if (st & 0x01) + continue; + } + gspca_frame_add(gspca_dev, INTER_PACKET, data, + data_urb->iso_frame_desc[i].actual_length); + } + +resubmit: + if (data_urb) { + st = usb_submit_urb(data_urb, GFP_ATOMIC); + if (st < 0) + PDEBUG(D_ERR|D_PACK, + "usb_submit_urb(data_urb) ret %d", st); + } + st = usb_submit_urb(status_urb, GFP_ATOMIC); + if (st < 0) + PDEBUG(D_ERR|D_PACK, "usb_submit_urb(status_urb) ret %d", st); +} + +static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + sd->brightness = val; + if (gspca_dev->streaming) { + konica_stream_off(gspca_dev); + reg_w(gspca_dev, sd->brightness, BRIGHTNESS_REG); + konica_stream_on(gspca_dev); + } + + return 0; +} + +static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + *val = sd->brightness; + + return 0; +} + +static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + sd->contrast = val; + if (gspca_dev->streaming) { + konica_stream_off(gspca_dev); + reg_w(gspca_dev, sd->contrast, CONTRAST_REG); + konica_stream_on(gspca_dev); + } + + return 0; +} + +static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + *val = sd->contrast; + + return 0; +} + +static int sd_setsaturation(struct gspca_dev *gspca_dev, __s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + sd->saturation = val; + if (gspca_dev->streaming) { + konica_stream_off(gspca_dev); + reg_w(gspca_dev, sd->saturation, SATURATION_REG); + konica_stream_on(gspca_dev); + } + return 0; +} + +static int sd_getsaturation(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + *val = sd->saturation; + + return 0; +} + +static int sd_setwhitebal(struct gspca_dev *gspca_dev, __s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + sd->whitebal = val; + if (gspca_dev->streaming) { + konica_stream_off(gspca_dev); + reg_w(gspca_dev, sd->whitebal, WHITEBAL_REG); + konica_stream_on(gspca_dev); + } + return 0; +} + +static int sd_getwhitebal(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + *val = sd->whitebal; + + return 0; +} + +static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + sd->sharpness = val; + if (gspca_dev->streaming) { + konica_stream_off(gspca_dev); + reg_w(gspca_dev, sd->sharpness, SHARPNESS_REG); + konica_stream_on(gspca_dev); + } + return 0; +} + +static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + *val = sd->sharpness; + + return 0; +} + +/* sub-driver description */ +static const struct sd_desc sd_desc = { + .name = MODULE_NAME, + .ctrls = sd_ctrls, + .nctrls = ARRAY_SIZE(sd_ctrls), + .config = sd_config, + .init = sd_init, + .start = sd_start, + .stopN = sd_stopN, +#ifdef CONFIG_INPUT + .other_input = 1, +#endif +}; + +/* -- module initialisation -- */ +static const __devinitdata struct usb_device_id device_table[] = { + {USB_DEVICE(0x04c8, 0x0720)}, /* Intel YC 76 */ + {} +}; +MODULE_DEVICE_TABLE(usb, device_table); + +/* -- device connect -- */ +static int sd_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd), + THIS_MODULE); +} + +static struct usb_driver sd_driver = { + .name = MODULE_NAME, + .id_table = device_table, + .probe = sd_probe, + .disconnect = gspca_disconnect, +#ifdef CONFIG_PM + .suspend = gspca_suspend, + .resume = gspca_resume, +#endif +}; + +/* -- module insert / remove -- */ +static int __init sd_mod_init(void) +{ + int ret; + + ret = usb_register(&sd_driver); + if (ret < 0) + return ret; + info("registered"); + return 0; +} +static void __exit sd_mod_exit(void) +{ + usb_deregister(&sd_driver); + info("deregistered"); +} + +module_init(sd_mod_init); +module_exit(sd_mod_exit); diff --git a/drivers/media/video/usbvideo/Kconfig b/drivers/media/video/usbvideo/Kconfig index e5822b1125e..dfa7fc68a65 100644 --- a/drivers/media/video/usbvideo/Kconfig +++ b/drivers/media/video/usbvideo/Kconfig @@ -30,10 +30,13 @@ config USB_IBMCAM to learn more. config USB_KONICAWC - tristate "USB Konica Webcam support" + tristate "USB Konica Webcam support (DEPRECATED)" depends on VIDEO_V4L1 select VIDEO_USBVIDEO ---help--- + This driver is DEPRECATED (and known to crash) please use the + gspca konica module instead. + Say Y here if you want support for webcams based on a Konica chipset. This is known to work with the Intel YC76 webcam. diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 0aef67e0281..2d5ce17ca47 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -364,6 +364,7 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_STV0680 v4l2_fourcc('S', '6', '8', '0') /* stv0680 bayer */ #define V4L2_PIX_FMT_TM6000 v4l2_fourcc('T', 'M', '6', '0') /* tm5600/tm60x0 */ #define V4L2_PIX_FMT_CIT_YYVYUY v4l2_fourcc('C', 'I', 'T', 'V') /* one line of Y then 1 line of VYUY */ +#define V4L2_PIX_FMT_KONICA420 v4l2_fourcc('K', 'O', 'N', 'I') /* YUV420 planar in blocks of 256 pixels */ /* * F O R M A T E N U M E R A T I O N -- cgit v1.2.3 From 226c0eeaea6732c686a5f4e06f25e5850cd5dd61 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 6 Aug 2010 12:48:00 -0300 Subject: V4L/DVB: videotext: remove this obsolete API Remove the vtx (aka videotext aka teletext) API from the v4l2 core. This API was scheduled for removal in kernel 2.6.35. The vtx device nodes have been superseded by vbi device nodes for many years. No applications exist that use the vtx support. Of the two i2c drivers that actually support this API the saa5249 has been impossible to use for a year now and no known hardware that supports this device exists. The saa5246a is theoretically supported by the old mxb boards, but it never actually worked. In summary: there is no hardware that can use this API and there are no applications actually implementing this API. The vtx support still reserves minors 192-223 and we would really like to reuse those for upcoming new functionality. In the unlikely event that new hardware appears that wants to use the functionality provided by the vtx API, then that functionality should be build around the sliced VBI API instead. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/v4l2-dev.c | 11 +--- include/linux/Kbuild | 1 - include/linux/videotext.h | 125 ----------------------------------------- include/media/v4l2-dev.h | 3 +- 4 files changed, 2 insertions(+), 138 deletions(-) delete mode 100644 include/linux/videotext.h (limited to 'include/linux') diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c index cb77197d480..d4a353260c1 100644 --- a/drivers/media/video/v4l2-dev.c +++ b/drivers/media/video/v4l2-dev.c @@ -81,7 +81,7 @@ static inline unsigned long *devnode_bits(int vfl_type) /* Any types not assigned to fixed minor ranges must be mapped to one single bitmap for the purposes of finding a free node number since all those unassigned types use the same minor range. */ - int idx = (vfl_type > VFL_TYPE_VTX) ? VFL_TYPE_MAX - 1 : vfl_type; + int idx = (vfl_type > VFL_TYPE_RADIO) ? VFL_TYPE_MAX - 1 : vfl_type; return devnode_nums[idx]; } @@ -377,8 +377,6 @@ static int get_index(struct video_device *vdev) * * %VFL_TYPE_GRABBER - A frame grabber * - * %VFL_TYPE_VTX - A teletext device - * * %VFL_TYPE_VBI - Vertical blank data (undecoded) * * %VFL_TYPE_RADIO - A radio card @@ -411,9 +409,6 @@ static int __video_register_device(struct video_device *vdev, int type, int nr, case VFL_TYPE_GRABBER: name_base = "video"; break; - case VFL_TYPE_VTX: - name_base = "vtx"; - break; case VFL_TYPE_VBI: name_base = "vbi"; break; @@ -451,10 +446,6 @@ static int __video_register_device(struct video_device *vdev, int type, int nr, minor_offset = 64; minor_cnt = 64; break; - case VFL_TYPE_VTX: - minor_offset = 192; - minor_cnt = 32; - break; case VFL_TYPE_VBI: minor_offset = 224; minor_cnt = 32; diff --git a/include/linux/Kbuild b/include/linux/Kbuild index 4e8ea8c8ec1..38a9f502bae 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -371,7 +371,6 @@ header-y += veth.h header-y += vhost.h header-y += videodev.h header-y += videodev2.h -header-y += videotext.h header-y += virtio_9p.h header-y += virtio_balloon.h header-y += virtio_blk.h diff --git a/include/linux/videotext.h b/include/linux/videotext.h deleted file mode 100644 index 3e68c8d1c7f..00000000000 --- a/include/linux/videotext.h +++ /dev/null @@ -1,125 +0,0 @@ -#ifndef _VTX_H -#define _VTX_H - -/* - * Teletext (=Videotext) hardware decoders using interface /dev/vtx - * Do not confuse with drivers using /dev/vbi which decode videotext by software - * - * Videotext IOCTLs changed in order to use _IO() macros defined in , - * unused tuner IOCTLs cleaned up by - * Michael Geng - * - * Copyright (c) 1994-97 Martin Buck - * Read COPYING for more information - * - */ - - -/* - * Videotext ioctls - */ -#define VTXIOCGETINFO _IOR (0x81, 1, vtx_info_t) -#define VTXIOCCLRPAGE _IOW (0x81, 2, vtx_pagereq_t) -#define VTXIOCCLRFOUND _IOW (0x81, 3, vtx_pagereq_t) -#define VTXIOCPAGEREQ _IOW (0x81, 4, vtx_pagereq_t) -#define VTXIOCGETSTAT _IOW (0x81, 5, vtx_pagereq_t) -#define VTXIOCGETPAGE _IOW (0x81, 6, vtx_pagereq_t) -#define VTXIOCSTOPDAU _IOW (0x81, 7, vtx_pagereq_t) -#define VTXIOCPUTPAGE _IO (0x81, 8) -#define VTXIOCSETDISP _IO (0x81, 9) -#define VTXIOCPUTSTAT _IO (0x81, 10) -#define VTXIOCCLRCACHE _IO (0x81, 11) -#define VTXIOCSETVIRT _IOW (0x81, 12, long) - -/* for compatibility, will go away some day */ -#define VTXIOCGETINFO_OLD 0x7101 /* get version of driver & capabilities of vtx-chipset */ -#define VTXIOCCLRPAGE_OLD 0x7102 /* clear page-buffer */ -#define VTXIOCCLRFOUND_OLD 0x7103 /* clear bits indicating that page was found */ -#define VTXIOCPAGEREQ_OLD 0x7104 /* search for page */ -#define VTXIOCGETSTAT_OLD 0x7105 /* get status of page-buffer */ -#define VTXIOCGETPAGE_OLD 0x7106 /* get contents of page-buffer */ -#define VTXIOCSTOPDAU_OLD 0x7107 /* stop data acquisition unit */ -#define VTXIOCPUTPAGE_OLD 0x7108 /* display page on TV-screen */ -#define VTXIOCSETDISP_OLD 0x7109 /* set TV-mode */ -#define VTXIOCPUTSTAT_OLD 0x710a /* set status of TV-output-buffer */ -#define VTXIOCCLRCACHE_OLD 0x710b /* clear cache on VTX-interface (if avail.) */ -#define VTXIOCSETVIRT_OLD 0x710c /* turn on virtual mode (this disables TV-display) */ - -/* - * Definitions for VTXIOCGETINFO - */ - -#define SAA5243 0 -#define SAA5246 1 -#define SAA5249 2 -#define SAA5248 3 -#define XSTV5346 4 - -typedef struct { - int version_major, version_minor; /* version of driver; if version_major changes, driver */ - /* is not backward compatible!!! CHECK THIS!!! */ - int numpages; /* number of page-buffers of vtx-chipset */ - int cct_type; /* type of vtx-chipset (SAA5243, SAA5246, SAA5248 or - * SAA5249) */ -} -vtx_info_t; - - -/* - * Definitions for VTXIOC{CLRPAGE,CLRFOUND,PAGEREQ,GETSTAT,GETPAGE,STOPDAU,PUTPAGE,SETDISP} - */ - -#define MIN_UNIT (1<<0) -#define MIN_TEN (1<<1) -#define HR_UNIT (1<<2) -#define HR_TEN (1<<3) -#define PG_UNIT (1<<4) -#define PG_TEN (1<<5) -#define PG_HUND (1<<6) -#define PGMASK_MAX (1<<7) -#define PGMASK_PAGE (PG_HUND | PG_TEN | PG_UNIT) -#define PGMASK_HOUR (HR_TEN | HR_UNIT) -#define PGMASK_MINUTE (MIN_TEN | MIN_UNIT) - -typedef struct -{ - int page; /* number of requested page (hexadecimal) */ - int hour; /* requested hour (hexadecimal) */ - int minute; /* requested minute (hexadecimal) */ - int pagemask; /* mask defining which values of the above are set */ - int pgbuf; /* buffer where page will be stored */ - int start; /* start of requested part of page */ - int end; /* end of requested part of page */ - void __user *buffer; /* pointer to beginning of destination buffer */ -} -vtx_pagereq_t; - - -/* - * Definitions for VTXIOC{GETSTAT,PUTSTAT} - */ - -#define VTX_PAGESIZE (40 * 24) -#define VTX_VIRTUALSIZE (40 * 49) - -typedef struct -{ - int pagenum; /* number of page (hexadecimal) */ - int hour; /* hour (hexadecimal) */ - int minute; /* minute (hexadecimal) */ - int charset; /* national charset */ - unsigned delete : 1; /* delete page (C4) */ - unsigned headline : 1; /* insert headline (C5) */ - unsigned subtitle : 1; /* insert subtitle (C6) */ - unsigned supp_header : 1; /* suppress header (C7) */ - unsigned update : 1; /* update page (C8) */ - unsigned inter_seq : 1; /* interrupted sequence (C9) */ - unsigned dis_disp : 1; /* disable/suppress display (C10) */ - unsigned serial : 1; /* serial mode (C11) */ - unsigned notfound : 1; /* /FOUND */ - unsigned pblf : 1; /* PBLF */ - unsigned hamming : 1; /* hamming-error occurred */ -} -vtx_pageinfo_t; - -#endif /* _VTX_H */ diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index 1efcacbed01..8ad4f9f93fe 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -21,8 +21,7 @@ #define VFL_TYPE_GRABBER 0 #define VFL_TYPE_VBI 1 #define VFL_TYPE_RADIO 2 -#define VFL_TYPE_VTX 3 -#define VFL_TYPE_MAX 4 +#define VFL_TYPE_MAX 3 struct v4l2_ioctl_callbacks; struct video_device; -- cgit v1.2.3 From 008d35f2f5256751a18f1f4aea79e3caf140098d Mon Sep 17 00:00:00 2001 From: Jean-François Moine Date: Mon, 13 Sep 2010 07:04:49 -0300 Subject: V4L/DVB: v4l2: Add illuminator controls MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Some media devices (microscopes) may have one or many illuminators. This patch makes them controlable by the applications. Acked-by: Hans Verkuil Acked-by: Andy Walls Signed-off-by: Jean-François Moine Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/v4l/controls.xml | 9 ++++++++- drivers/media/video/v4l2-ctrls.c | 4 ++++ include/linux/videodev2.h | 5 ++++- 3 files changed, 16 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/Documentation/DocBook/v4l/controls.xml b/Documentation/DocBook/v4l/controls.xml index 8408caaee27..68c83449d7c 100644 --- a/Documentation/DocBook/v4l/controls.xml +++ b/Documentation/DocBook/v4l/controls.xml @@ -311,11 +311,18 @@ minimum value disables backlight compensation. bits 8-15 Green color information, bits 16-23 Blue color information and bits 24-31 must be zero. + + V4L2_CID_ILLUMINATORS_1 + V4L2_CID_ILLUMINATORS_2 + boolean + Switch on or off the illuminator 1 or 2 of the device + (usually a microscope). + V4L2_CID_LASTP1 End of the predefined control IDs (currently -V4L2_CID_BG_COLOR + 1). +V4L2_CID_ILLUMINATORS_2 + 1). V4L2_CID_PRIVATE_BASE diff --git a/drivers/media/video/v4l2-ctrls.c b/drivers/media/video/v4l2-ctrls.c index ea8d32cd425..9d2502cd03f 100644 --- a/drivers/media/video/v4l2-ctrls.c +++ b/drivers/media/video/v4l2-ctrls.c @@ -305,6 +305,8 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_ROTATE: return "Rotate"; case V4L2_CID_BG_COLOR: return "Background Color"; case V4L2_CID_CHROMA_GAIN: return "Chroma Gain"; + case V4L2_CID_ILLUMINATORS_1: return "Illuminator 1"; + case V4L2_CID_ILLUMINATORS_2: return "Illuminator 2"; /* MPEG controls */ /* Keep the order of the 'case's the same as in videodev2.h! */ @@ -419,6 +421,8 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, case V4L2_CID_AUDIO_LIMITER_ENABLED: case V4L2_CID_AUDIO_COMPRESSION_ENABLED: case V4L2_CID_PILOT_TONE_ENABLED: + case V4L2_CID_ILLUMINATORS_1: + case V4L2_CID_ILLUMINATORS_2: *type = V4L2_CTRL_TYPE_BOOLEAN; *min = 0; *max = *step = 1; diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 2d5ce17ca47..b06479f6327 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -1047,8 +1047,11 @@ enum v4l2_colorfx { #define V4L2_CID_CHROMA_GAIN (V4L2_CID_BASE+36) +#define V4L2_CID_ILLUMINATORS_1 (V4L2_CID_BASE+37) +#define V4L2_CID_ILLUMINATORS_2 (V4L2_CID_BASE+38) + /* last CID + 1 */ -#define V4L2_CID_LASTP1 (V4L2_CID_BASE+37) +#define V4L2_CID_LASTP1 (V4L2_CID_BASE+39) /* MPEG-class control IDs defined by V4L2 */ #define V4L2_CID_MPEG_BASE (V4L2_CTRL_CLASS_MPEG | 0x900) -- cgit v1.2.3 From 79c6ff93c74e793ccceb464ee3698478c812ce79 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 27 Aug 2010 13:41:44 -0300 Subject: V4L/DVB: V4L2: add a generic function to find the nearest discrete format to the required one Many video drivers implement a fixed set of frame formats and thus face a task of finding the best match for a user-requested format. Implementing this in a generic function has also an advantage, that different drivers with similar supported format sets will select the same format for the user, which improves consistency across drivers. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/v4l2-common.c | 24 ++++++++++++++++++++++++ include/linux/videodev2.h | 8 ++++++++ 2 files changed, 32 insertions(+) (limited to 'include/linux') diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c index 8ee1179be92..31ae1a13861 100644 --- a/drivers/media/video/v4l2-common.c +++ b/drivers/media/video/v4l2-common.c @@ -676,3 +676,27 @@ int v4l_fill_dv_preset_info(u32 preset, struct v4l2_dv_enum_preset *info) return 0; } EXPORT_SYMBOL_GPL(v4l_fill_dv_preset_info); + +struct v4l2_frmsize_discrete *v4l2_find_nearest_format(struct v4l2_discrete_probe *probe, + s32 width, s32 height) +{ + int i; + u32 error, min_error = UINT_MAX; + struct v4l2_frmsize_discrete *size, *best = NULL; + + if (!probe) + return best; + + for (i = 0, size = probe->sizes; i < probe->num_sizes; i++, size++) { + error = abs(size->width - width) + abs(size->height - height); + if (error < min_error) { + min_error = error; + best = size; + } + if (!error) + break; + } + + return best; +} +EXPORT_SYMBOL_GPL(v4l2_find_nearest_format); diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index b06479f6327..957d5b09384 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -397,6 +397,14 @@ struct v4l2_frmsize_discrete { __u32 height; /* Frame height [pixel] */ }; +struct v4l2_discrete_probe { + const struct v4l2_frmsize_discrete *sizes; + int num_sizes; +}; + +struct v4l2_frmsize_discrete *v4l2_find_nearest_format(struct v4l2_discrete_probe *probe, + s32 width, s32 height); + struct v4l2_frmsize_stepwise { __u32 min_width; /* Minimum frame width [pixel] */ __u32 max_width; /* Maximum frame width [pixel] */ -- cgit v1.2.3 From 3fd8e647eaa76a1eb5bdd0fcecf49364a089b71d Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Thu, 30 Sep 2010 09:29:37 -0300 Subject: V4L/DVB: v4l2-common: Move v4l2_find_nearest_format from videodev2.h to v4l2-common.h This function is an internal API and belongs in v4l2-common.h, not videodev.h. The return pointer and probe argument should be const as well. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/v4l2-common.c | 7 ++++--- include/linux/videodev2.h | 8 -------- include/media/v4l2-common.h | 10 ++++++++++ 3 files changed, 14 insertions(+), 11 deletions(-) (limited to 'include/linux') diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c index 31ae1a13861..cef80dab1a0 100644 --- a/drivers/media/video/v4l2-common.c +++ b/drivers/media/video/v4l2-common.c @@ -677,12 +677,13 @@ int v4l_fill_dv_preset_info(u32 preset, struct v4l2_dv_enum_preset *info) } EXPORT_SYMBOL_GPL(v4l_fill_dv_preset_info); -struct v4l2_frmsize_discrete *v4l2_find_nearest_format(struct v4l2_discrete_probe *probe, - s32 width, s32 height) +const struct v4l2_frmsize_discrete *v4l2_find_nearest_format( + const struct v4l2_discrete_probe *probe, + s32 width, s32 height) { int i; u32 error, min_error = UINT_MAX; - struct v4l2_frmsize_discrete *size, *best = NULL; + const struct v4l2_frmsize_discrete *size, *best = NULL; if (!probe) return best; diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 957d5b09384..b06479f6327 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -397,14 +397,6 @@ struct v4l2_frmsize_discrete { __u32 height; /* Frame height [pixel] */ }; -struct v4l2_discrete_probe { - const struct v4l2_frmsize_discrete *sizes; - int num_sizes; -}; - -struct v4l2_frmsize_discrete *v4l2_find_nearest_format(struct v4l2_discrete_probe *probe, - s32 width, s32 height); - struct v4l2_frmsize_stepwise { __u32 min_width; /* Minimum frame width [pixel] */ __u32 max_width; /* Maximum frame width [pixel] */ diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h index 98b32645e5a..41dd480e45f 100644 --- a/include/media/v4l2-common.h +++ b/include/media/v4l2-common.h @@ -232,4 +232,14 @@ void v4l_bound_align_image(unsigned int *w, unsigned int wmin, unsigned int hmax, unsigned int halign, unsigned int salign); int v4l_fill_dv_preset_info(u32 preset, struct v4l2_dv_enum_preset *info); + +struct v4l2_discrete_probe { + const struct v4l2_frmsize_discrete *sizes; + int num_sizes; +}; + +const struct v4l2_frmsize_discrete *v4l2_find_nearest_format( + const struct v4l2_discrete_probe *probe, + s32 width, s32 height); + #endif /* V4L2_COMMON_H_ */ -- cgit v1.2.3 From 44a81550410ada5b30f0a611d9446dc9cbf4cb59 Mon Sep 17 00:00:00 2001 From: Matti Aaltonen Date: Thu, 7 Oct 2010 10:16:11 -0300 Subject: [media] V4L2: Add seek spacing and RDS CAP bits Add spacing field to v4l2_hw_freq_seek. Add V4L2_TUNER_CAP_RDS_BLOCK_IO, which indicates that the tuner/ transmitter if capable of transmitting/receiving RDS blocks. Add V4L2_TUNER_CAP_RDS_CONTROLS capability, which indicates that the RDS data is handled as values of predefined controls like radio text, program ID and so on. Signed-off-by: Matti J. Aaltonen Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/linux/videodev2.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index b06479f6327..5f6f47044ab 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -1368,6 +1368,8 @@ struct v4l2_modulator { #define V4L2_TUNER_CAP_SAP 0x0020 #define V4L2_TUNER_CAP_LANG1 0x0040 #define V4L2_TUNER_CAP_RDS 0x0080 +#define V4L2_TUNER_CAP_RDS_BLOCK_IO 0x0100 +#define V4L2_TUNER_CAP_RDS_CONTROLS 0x0200 /* Flags for the 'rxsubchans' field */ #define V4L2_TUNER_SUB_MONO 0x0001 @@ -1397,7 +1399,8 @@ struct v4l2_hw_freq_seek { enum v4l2_tuner_type type; __u32 seek_upward; __u32 wrap_around; - __u32 reserved[8]; + __u32 spacing; + __u32 reserved[7]; }; /* -- cgit v1.2.3 From 024fafbac36b176d978ccd0fb1cae1fbc38c7fee Mon Sep 17 00:00:00 2001 From: Jonathan Corbet Date: Tue, 19 Oct 2010 21:32:11 -0300 Subject: [media] Add the via framebuffer camera controller driver Add a driver for the video capture port on VIA integrated chipsets. This version has a remaining OLPCism or two and expects to be talking to an ov7670; those can be improved as the need arises. This work was supported by the One Laptop Per Child project. Thanks to Laurent Pinchart for a number of useful comments. Cc: Florian Tobias Schandinat Signed-off-by: Jonathan Corbet Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/Kconfig | 10 + drivers/media/video/Makefile | 2 + drivers/media/video/via-camera.c | 1474 ++++++++++++++++++++++++++++++++++++++ drivers/media/video/via-camera.h | 93 +++ drivers/video/via/accel.c | 2 +- drivers/video/via/via-core.c | 16 +- include/linux/via-core.h | 4 +- include/media/v4l2-chip-ident.h | 4 + 8 files changed, 1601 insertions(+), 4 deletions(-) create mode 100644 drivers/media/video/via-camera.c create mode 100644 drivers/media/video/via-camera.h (limited to 'include/linux') diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index 2d4226710ed..0efbb29a1a0 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -712,6 +712,16 @@ config VIDEO_SR030PC30 ---help--- This driver supports SR030PC30 VGA camera from Siliconfile +config VIDEO_VIA_CAMERA + tristate "VIAFB camera controller support" + depends on FB_VIA + select VIDEOBUF_DMA_SG + select VIDEO_OV7670 + help + Driver support for the integrated camera controller in VIA + Chrome9 chipsets. Currently only tested on OLPC xo-1.5 systems + with ov7670 sensors. + config SOC_CAMERA tristate "SoC camera support" depends on VIDEO_V4L2 && HAS_DMA && I2C diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile index d5e49ddbf9d..af79d476a4c 100644 --- a/drivers/media/video/Makefile +++ b/drivers/media/video/Makefile @@ -122,6 +122,8 @@ obj-$(CONFIG_VIDEO_CX2341X) += cx2341x.o obj-$(CONFIG_VIDEO_CAFE_CCIC) += cafe_ccic.o +obj-$(CONFIG_VIDEO_VIA_CAMERA) += via-camera.o + obj-$(CONFIG_USB_DABUSB) += dabusb.o obj-$(CONFIG_USB_SE401) += se401.o obj-$(CONFIG_USB_ZR364XX) += zr364xx.o diff --git a/drivers/media/video/via-camera.c b/drivers/media/video/via-camera.c new file mode 100644 index 00000000000..02a21bccae1 --- /dev/null +++ b/drivers/media/video/via-camera.c @@ -0,0 +1,1474 @@ +/* + * Driver for the VIA Chrome integrated camera controller. + * + * Copyright 2009,2010 Jonathan Corbet + * Distributable under the terms of the GNU General Public License, version 2 + * + * This work was supported by the One Laptop Per Child project + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "via-camera.h" + +MODULE_AUTHOR("Jonathan Corbet "); +MODULE_DESCRIPTION("VIA framebuffer-based camera controller driver"); +MODULE_LICENSE("GPL"); + +static int flip_image; +module_param(flip_image, bool, 0444); +MODULE_PARM_DESC(flip_image, + "If set, the sensor will be instructed to flip the image " + "vertically."); + +#ifdef CONFIG_OLPC_XO_1_5 +static int override_serial; +module_param(override_serial, bool, 0444); +MODULE_PARM_DESC(override_serial, + "The camera driver will normally refuse to load if " + "the XO 1.5 serial port is enabled. Set this option " + "to force the issue."); +#endif + +/* + * Basic window sizes. + */ +#define VGA_WIDTH 640 +#define VGA_HEIGHT 480 +#define QCIF_WIDTH 176 +#define QCIF_HEIGHT 144 + +/* + * The structure describing our camera. + */ +enum viacam_opstate { S_IDLE = 0, S_RUNNING = 1 }; + +struct via_camera { + struct v4l2_device v4l2_dev; + struct video_device vdev; + struct v4l2_subdev *sensor; + struct platform_device *platdev; + struct viafb_dev *viadev; + struct mutex lock; + enum viacam_opstate opstate; + unsigned long flags; + struct pm_qos_request_list qos_request; + /* + * GPIO info for power/reset management + */ + int power_gpio; + int reset_gpio; + /* + * I/O memory stuff. + */ + void __iomem *mmio; /* Where the registers live */ + void __iomem *fbmem; /* Frame buffer memory */ + u32 fb_offset; /* Reserved memory offset (FB) */ + /* + * Capture buffers and related. The controller supports + * up to three, so that's what we have here. These buffers + * live in frame buffer memory, so we don't call them "DMA". + */ + unsigned int cb_offsets[3]; /* offsets into fb mem */ + u8 *cb_addrs[3]; /* Kernel-space addresses */ + int n_cap_bufs; /* How many are we using? */ + int next_buf; + struct videobuf_queue vb_queue; + struct list_head buffer_queue; /* prot. by reg_lock */ + /* + * User tracking. + */ + int users; + struct file *owner; + /* + * Video format information. sensor_format is kept in a form + * that we can use to pass to the sensor. We always run the + * sensor in VGA resolution, though, and let the controller + * downscale things if need be. So we keep the "real* + * dimensions separately. + */ + struct v4l2_pix_format sensor_format; + struct v4l2_pix_format user_format; + enum v4l2_mbus_pixelcode mbus_code; +}; + +/* + * Yes, this is a hack, but there's only going to be one of these + * on any system we know of. + */ +static struct via_camera *via_cam_info; + +/* + * Flag values, manipulated with bitops + */ +#define CF_DMA_ACTIVE 0 /* A frame is incoming */ +#define CF_CONFIG_NEEDED 1 /* Must configure hardware */ + + +/* + * Nasty ugly v4l2 boilerplate. + */ +#define sensor_call(cam, optype, func, args...) \ + v4l2_subdev_call(cam->sensor, optype, func, ##args) + +/* + * Debugging and related. + */ +#define cam_err(cam, fmt, arg...) \ + dev_err(&(cam)->platdev->dev, fmt, ##arg); +#define cam_warn(cam, fmt, arg...) \ + dev_warn(&(cam)->platdev->dev, fmt, ##arg); +#define cam_dbg(cam, fmt, arg...) \ + dev_dbg(&(cam)->platdev->dev, fmt, ##arg); + +/* + * Format handling. This is ripped almost directly from Hans's changes + * to cafe_ccic.c. It's a little unfortunate; until this change, we + * didn't need to know anything about the format except its byte depth; + * now this information must be managed at this level too. + */ +static struct via_format { + __u8 *desc; + __u32 pixelformat; + int bpp; /* Bytes per pixel */ + enum v4l2_mbus_pixelcode mbus_code; +} via_formats[] = { + { + .desc = "YUYV 4:2:2", + .pixelformat = V4L2_PIX_FMT_YUYV, + .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8, + .bpp = 2, + }, + { + .desc = "RGB 565", + .pixelformat = V4L2_PIX_FMT_RGB565, + .mbus_code = V4L2_MBUS_FMT_RGB565_2X8_LE, + .bpp = 2, + }, + /* RGB444 and Bayer should be doable, but have never been + tested with this driver. */ +}; +#define N_VIA_FMTS ARRAY_SIZE(via_formats) + +static struct via_format *via_find_format(u32 pixelformat) +{ + unsigned i; + + for (i = 0; i < N_VIA_FMTS; i++) + if (via_formats[i].pixelformat == pixelformat) + return via_formats + i; + /* Not found? Then return the first format. */ + return via_formats; +} + + +/*--------------------------------------------------------------------------*/ +/* + * Sensor power/reset management. This piece is OLPC-specific for + * sure; other configurations will have things connected differently. + */ +static int via_sensor_power_setup(struct via_camera *cam) +{ + int ret; + + cam->power_gpio = viafb_gpio_lookup("VGPIO3"); + cam->reset_gpio = viafb_gpio_lookup("VGPIO2"); + if (cam->power_gpio < 0 || cam->reset_gpio < 0) { + dev_err(&cam->platdev->dev, "Unable to find GPIO lines\n"); + return -EINVAL; + } + ret = gpio_request(cam->power_gpio, "viafb-camera"); + if (ret) { + dev_err(&cam->platdev->dev, "Unable to request power GPIO\n"); + return ret; + } + ret = gpio_request(cam->reset_gpio, "viafb-camera"); + if (ret) { + dev_err(&cam->platdev->dev, "Unable to request reset GPIO\n"); + gpio_free(cam->power_gpio); + return ret; + } + gpio_direction_output(cam->power_gpio, 0); + gpio_direction_output(cam->reset_gpio, 0); + return 0; +} + +/* + * Power up the sensor and perform the reset dance. + */ +static void via_sensor_power_up(struct via_camera *cam) +{ + gpio_set_value(cam->power_gpio, 1); + gpio_set_value(cam->reset_gpio, 0); + msleep(20); /* Probably excessive */ + gpio_set_value(cam->reset_gpio, 1); + msleep(20); +} + +static void via_sensor_power_down(struct via_camera *cam) +{ + gpio_set_value(cam->power_gpio, 0); + gpio_set_value(cam->reset_gpio, 0); +} + + +static void via_sensor_power_release(struct via_camera *cam) +{ + via_sensor_power_down(cam); + gpio_free(cam->power_gpio); + gpio_free(cam->reset_gpio); +} + +/* --------------------------------------------------------------------------*/ +/* Sensor ops */ + +/* + * Manage the ov7670 "flip" bit, which needs special help. + */ +static int viacam_set_flip(struct via_camera *cam) +{ + struct v4l2_control ctrl; + + memset(&ctrl, 0, sizeof(ctrl)); + ctrl.id = V4L2_CID_VFLIP; + ctrl.value = flip_image; + return sensor_call(cam, core, s_ctrl, &ctrl); +} + +/* + * Configure the sensor. It's up to the caller to ensure + * that the camera is in the correct operating state. + */ +static int viacam_configure_sensor(struct via_camera *cam) +{ + struct v4l2_mbus_framefmt mbus_fmt; + int ret; + + v4l2_fill_mbus_format(&mbus_fmt, &cam->sensor_format, cam->mbus_code); + ret = sensor_call(cam, core, init, 0); + if (ret == 0) + ret = sensor_call(cam, video, s_mbus_fmt, &mbus_fmt); + /* + * OV7670 does weird things if flip is set *before* format... + */ + if (ret == 0) + ret = viacam_set_flip(cam); + return ret; +} + + + +/* --------------------------------------------------------------------------*/ +/* + * Some simple register accessors; they assume that the lock is held. + * + * Should we want to support the second capture engine, we could + * hide the register difference by adding 0x1000 to registers in the + * 0x300-350 range. + */ +static inline void viacam_write_reg(struct via_camera *cam, + int reg, int value) +{ + iowrite32(value, cam->mmio + reg); +} + +static inline int viacam_read_reg(struct via_camera *cam, int reg) +{ + return ioread32(cam->mmio + reg); +} + +static inline void viacam_write_reg_mask(struct via_camera *cam, + int reg, int value, int mask) +{ + int tmp = viacam_read_reg(cam, reg); + + tmp = (tmp & ~mask) | (value & mask); + viacam_write_reg(cam, reg, tmp); +} + + +/* --------------------------------------------------------------------------*/ +/* Interrupt management and handling */ + +static irqreturn_t viacam_quick_irq(int irq, void *data) +{ + struct via_camera *cam = data; + irqreturn_t ret = IRQ_NONE; + int icv; + + /* + * All we do here is to clear the interrupts and tell + * the handler thread to wake up. + */ + spin_lock(&cam->viadev->reg_lock); + icv = viacam_read_reg(cam, VCR_INTCTRL); + if (icv & VCR_IC_EAV) { + icv |= VCR_IC_EAV|VCR_IC_EVBI|VCR_IC_FFULL; + viacam_write_reg(cam, VCR_INTCTRL, icv); + ret = IRQ_WAKE_THREAD; + } + spin_unlock(&cam->viadev->reg_lock); + return ret; +} + +/* + * Find the next videobuf buffer which has somebody waiting on it. + */ +static struct videobuf_buffer *viacam_next_buffer(struct via_camera *cam) +{ + unsigned long flags; + struct videobuf_buffer *buf = NULL; + + spin_lock_irqsave(&cam->viadev->reg_lock, flags); + if (cam->opstate != S_RUNNING) + goto out; + if (list_empty(&cam->buffer_queue)) + goto out; + buf = list_entry(cam->buffer_queue.next, struct videobuf_buffer, queue); + if (!waitqueue_active(&buf->done)) {/* Nobody waiting */ + buf = NULL; + goto out; + } + list_del(&buf->queue); + buf->state = VIDEOBUF_ACTIVE; +out: + spin_unlock_irqrestore(&cam->viadev->reg_lock, flags); + return buf; +} + +/* + * The threaded IRQ handler. + */ +static irqreturn_t viacam_irq(int irq, void *data) +{ + int bufn; + struct videobuf_buffer *vb; + struct via_camera *cam = data; + struct videobuf_dmabuf *vdma; + + /* + * If there is no place to put the data frame, don't bother + * with anything else. + */ + vb = viacam_next_buffer(cam); + if (vb == NULL) + goto done; + /* + * Figure out which buffer we just completed. + */ + bufn = (viacam_read_reg(cam, VCR_INTCTRL) & VCR_IC_ACTBUF) >> 3; + bufn -= 1; + if (bufn < 0) + bufn = cam->n_cap_bufs - 1; + /* + * Copy over the data and let any waiters know. + */ + vdma = videobuf_to_dma(vb); + viafb_dma_copy_out_sg(cam->cb_offsets[bufn], vdma->sglist, vdma->sglen); + vb->state = VIDEOBUF_DONE; + vb->size = cam->user_format.sizeimage; + wake_up(&vb->done); +done: + return IRQ_HANDLED; +} + + +/* + * These functions must mess around with the general interrupt + * control register, which is relevant to much more than just the + * camera. Nothing else uses interrupts, though, as of this writing. + * Should that situation change, we'll have to improve support at + * the via-core level. + */ +static void viacam_int_enable(struct via_camera *cam) +{ + viacam_write_reg(cam, VCR_INTCTRL, + VCR_IC_INTEN|VCR_IC_EAV|VCR_IC_EVBI|VCR_IC_FFULL); + viafb_irq_enable(VDE_I_C0AVEN); +} + +static void viacam_int_disable(struct via_camera *cam) +{ + viafb_irq_disable(VDE_I_C0AVEN); + viacam_write_reg(cam, VCR_INTCTRL, 0); +} + + + +/* --------------------------------------------------------------------------*/ +/* Controller operations */ + +/* + * Set up our capture buffers in framebuffer memory. + */ +static int viacam_ctlr_cbufs(struct via_camera *cam) +{ + int nbuf = cam->viadev->camera_fbmem_size/cam->sensor_format.sizeimage; + int i; + unsigned int offset; + + /* + * See how many buffers we can work with. + */ + if (nbuf >= 3) { + cam->n_cap_bufs = 3; + viacam_write_reg_mask(cam, VCR_CAPINTC, VCR_CI_3BUFS, + VCR_CI_3BUFS); + } else if (nbuf == 2) { + cam->n_cap_bufs = 2; + viacam_write_reg_mask(cam, VCR_CAPINTC, 0, VCR_CI_3BUFS); + } else { + cam_warn(cam, "Insufficient frame buffer memory\n"); + return -ENOMEM; + } + /* + * Set them up. + */ + offset = cam->fb_offset; + for (i = 0; i < cam->n_cap_bufs; i++) { + cam->cb_offsets[i] = offset; + cam->cb_addrs[i] = cam->fbmem + offset; + viacam_write_reg(cam, VCR_VBUF1 + i*4, offset & VCR_VBUF_MASK); + offset += cam->sensor_format.sizeimage; + } + return 0; +} + +/* + * Set the scaling register for downscaling the image. + * + * This register works like this... Vertical scaling is enabled + * by bit 26; if that bit is set, downscaling is controlled by the + * value in bits 16:25. Those bits are divided by 1024 to get + * the scaling factor; setting just bit 25 thus cuts the height + * in half. + * + * Horizontal scaling works about the same, but it's enabled by + * bit 11, with bits 0:10 giving the numerator of a fraction + * (over 2048) for the scaling value. + * + * This function is naive in that, if the user departs from + * the 3x4 VGA scaling factor, the image will distort. We + * could work around that if it really seemed important. + */ +static void viacam_set_scale(struct via_camera *cam) +{ + unsigned int avscale; + int sf; + + if (cam->user_format.width == VGA_WIDTH) + avscale = 0; + else { + sf = (cam->user_format.width*2048)/VGA_WIDTH; + avscale = VCR_AVS_HEN | sf; + } + if (cam->user_format.height < VGA_HEIGHT) { + sf = (1024*cam->user_format.height)/VGA_HEIGHT; + avscale |= VCR_AVS_VEN | (sf << 16); + } + viacam_write_reg(cam, VCR_AVSCALE, avscale); +} + + +/* + * Configure image-related information into the capture engine. + */ +static void viacam_ctlr_image(struct via_camera *cam) +{ + int cicreg; + + /* + * Disable clock before messing with stuff - from the via + * sample driver. + */ + viacam_write_reg(cam, VCR_CAPINTC, ~(VCR_CI_ENABLE|VCR_CI_CLKEN)); + /* + * Set up the controller for VGA resolution, modulo magic + * offsets from the via sample driver. + */ + viacam_write_reg(cam, VCR_HORRANGE, 0x06200120); + viacam_write_reg(cam, VCR_VERTRANGE, 0x01de0000); + viacam_set_scale(cam); + /* + * Image size info. + */ + viacam_write_reg(cam, VCR_MAXDATA, + (cam->sensor_format.height << 16) | + (cam->sensor_format.bytesperline >> 3)); + viacam_write_reg(cam, VCR_MAXVBI, 0); + viacam_write_reg(cam, VCR_VSTRIDE, + cam->user_format.bytesperline & VCR_VS_STRIDE); + /* + * Set up the capture interface control register, + * everything but the "go" bit. + * + * The FIFO threshold is a bit of a magic number; 8 is what + * VIA's sample code uses. + */ + cicreg = VCR_CI_CLKEN | + 0x08000000 | /* FIFO threshold */ + VCR_CI_FLDINV | /* OLPC-specific? */ + VCR_CI_VREFINV | /* OLPC-specific? */ + VCR_CI_DIBOTH | /* Capture both fields */ + VCR_CI_CCIR601_8; + if (cam->n_cap_bufs == 3) + cicreg |= VCR_CI_3BUFS; + /* + * YUV formats need different byte swapping than RGB. + */ + if (cam->user_format.pixelformat == V4L2_PIX_FMT_YUYV) + cicreg |= VCR_CI_YUYV; + else + cicreg |= VCR_CI_UYVY; + viacam_write_reg(cam, VCR_CAPINTC, cicreg); +} + + +static int viacam_config_controller(struct via_camera *cam) +{ + int ret; + unsigned long flags; + + spin_lock_irqsave(&cam->viadev->reg_lock, flags); + ret = viacam_ctlr_cbufs(cam); + if (!ret) + viacam_ctlr_image(cam); + spin_unlock_irqrestore(&cam->viadev->reg_lock, flags); + clear_bit(CF_CONFIG_NEEDED, &cam->flags); + return ret; +} + +/* + * Make it start grabbing data. + */ +static void viacam_start_engine(struct via_camera *cam) +{ + spin_lock_irq(&cam->viadev->reg_lock); + cam->next_buf = 0; + viacam_write_reg_mask(cam, VCR_CAPINTC, VCR_CI_ENABLE, VCR_CI_ENABLE); + viacam_int_enable(cam); + (void) viacam_read_reg(cam, VCR_CAPINTC); /* Force post */ + cam->opstate = S_RUNNING; + spin_unlock_irq(&cam->viadev->reg_lock); +} + + +static void viacam_stop_engine(struct via_camera *cam) +{ + spin_lock_irq(&cam->viadev->reg_lock); + viacam_int_disable(cam); + viacam_write_reg_mask(cam, VCR_CAPINTC, 0, VCR_CI_ENABLE); + (void) viacam_read_reg(cam, VCR_CAPINTC); /* Force post */ + cam->opstate = S_IDLE; + spin_unlock_irq(&cam->viadev->reg_lock); +} + + +/* --------------------------------------------------------------------------*/ +/* Videobuf callback ops */ + +/* + * buffer_setup. The purpose of this one would appear to be to tell + * videobuf how big a single image is. It's also evidently up to us + * to put some sort of limit on the maximum number of buffers allowed. + */ +static int viacam_vb_buf_setup(struct videobuf_queue *q, + unsigned int *count, unsigned int *size) +{ + struct via_camera *cam = q->priv_data; + + *size = cam->user_format.sizeimage; + if (*count == 0 || *count > 6) /* Arbitrary number */ + *count = 6; + return 0; +} + +/* + * Prepare a buffer. + */ +static int viacam_vb_buf_prepare(struct videobuf_queue *q, + struct videobuf_buffer *vb, enum v4l2_field field) +{ + struct via_camera *cam = q->priv_data; + + vb->size = cam->user_format.sizeimage; + vb->width = cam->user_format.width; /* bytesperline???? */ + vb->height = cam->user_format.height; + vb->field = field; + if (vb->state == VIDEOBUF_NEEDS_INIT) { + int ret = videobuf_iolock(q, vb, NULL); + if (ret) + return ret; + } + vb->state = VIDEOBUF_PREPARED; + return 0; +} + +/* + * We've got a buffer to put data into. + * + * FIXME: check for a running engine and valid buffers? + */ +static void viacam_vb_buf_queue(struct videobuf_queue *q, + struct videobuf_buffer *vb) +{ + struct via_camera *cam = q->priv_data; + + /* + * Note that videobuf holds the lock when it calls + * us, so we need not (indeed, cannot) take it here. + */ + vb->state = VIDEOBUF_QUEUED; + list_add_tail(&vb->queue, &cam->buffer_queue); +} + +/* + * Free a buffer. + */ +static void viacam_vb_buf_release(struct videobuf_queue *q, + struct videobuf_buffer *vb) +{ + struct via_camera *cam = q->priv_data; + + videobuf_dma_unmap(&cam->platdev->dev, videobuf_to_dma(vb)); + videobuf_dma_free(videobuf_to_dma(vb)); + vb->state = VIDEOBUF_NEEDS_INIT; +} + +static const struct videobuf_queue_ops viacam_vb_ops = { + .buf_setup = viacam_vb_buf_setup, + .buf_prepare = viacam_vb_buf_prepare, + .buf_queue = viacam_vb_buf_queue, + .buf_release = viacam_vb_buf_release, +}; + +/* --------------------------------------------------------------------------*/ +/* File operations */ + +static int viacam_open(struct file *filp) +{ + struct via_camera *cam = video_drvdata(filp); + + filp->private_data = cam; + /* + * Note the new user. If this is the first one, we'll also + * need to power up the sensor. + */ + mutex_lock(&cam->lock); + if (cam->users == 0) { + int ret = viafb_request_dma(); + + if (ret) { + mutex_unlock(&cam->lock); + return ret; + } + via_sensor_power_up(cam); + set_bit(CF_CONFIG_NEEDED, &cam->flags); + /* + * Hook into videobuf. Evidently this cannot fail. + */ + videobuf_queue_sg_init(&cam->vb_queue, &viacam_vb_ops, + &cam->platdev->dev, &cam->viadev->reg_lock, + V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_NONE, + sizeof(struct videobuf_buffer), cam, NULL); + } + (cam->users)++; + mutex_unlock(&cam->lock); + return 0; +} + +static int viacam_release(struct file *filp) +{ + struct via_camera *cam = video_drvdata(filp); + + mutex_lock(&cam->lock); + (cam->users)--; + /* + * If the "owner" is closing, shut down any ongoing + * operations. + */ + if (filp == cam->owner) { + videobuf_stop(&cam->vb_queue); + /* + * We don't hold the spinlock here, but, if release() + * is being called by the owner, nobody else will + * be changing the state. And an extra stop would + * not hurt anyway. + */ + if (cam->opstate != S_IDLE) + viacam_stop_engine(cam); + cam->owner = NULL; + } + /* + * Last one out needs to turn out the lights. + */ + if (cam->users == 0) { + videobuf_mmap_free(&cam->vb_queue); + via_sensor_power_down(cam); + viafb_release_dma(); + } + mutex_unlock(&cam->lock); + return 0; +} + +/* + * Read a frame from the device. + */ +static ssize_t viacam_read(struct file *filp, char __user *buffer, + size_t len, loff_t *pos) +{ + struct via_camera *cam = video_drvdata(filp); + int ret; + + mutex_lock(&cam->lock); + /* + * Enforce the V4l2 "only one owner gets to read data" rule. + */ + if (cam->owner && cam->owner != filp) { + ret = -EBUSY; + goto out_unlock; + } + cam->owner = filp; + /* + * Do we need to configure the hardware? + */ + if (test_bit(CF_CONFIG_NEEDED, &cam->flags)) { + ret = viacam_configure_sensor(cam); + if (!ret) + ret = viacam_config_controller(cam); + if (ret) + goto out_unlock; + } + /* + * Fire up the capture engine, then have videobuf do + * the heavy lifting. Someday it would be good to avoid + * stopping and restarting the engine each time. + */ + INIT_LIST_HEAD(&cam->buffer_queue); + viacam_start_engine(cam); + ret = videobuf_read_stream(&cam->vb_queue, buffer, len, pos, 0, + filp->f_flags & O_NONBLOCK); + viacam_stop_engine(cam); + /* videobuf_stop() ?? */ + +out_unlock: + mutex_unlock(&cam->lock); + return ret; +} + + +static unsigned int viacam_poll(struct file *filp, struct poll_table_struct *pt) +{ + struct via_camera *cam = video_drvdata(filp); + + return videobuf_poll_stream(filp, &cam->vb_queue, pt); +} + + +static int viacam_mmap(struct file *filp, struct vm_area_struct *vma) +{ + struct via_camera *cam = video_drvdata(filp); + + return videobuf_mmap_mapper(&cam->vb_queue, vma); +} + + + +static const struct v4l2_file_operations viacam_fops = { + .owner = THIS_MODULE, + .open = viacam_open, + .release = viacam_release, + .read = viacam_read, + .poll = viacam_poll, + .mmap = viacam_mmap, + .unlocked_ioctl = video_ioctl2, +}; + +/*----------------------------------------------------------------------------*/ +/* + * The long list of v4l2 ioctl ops + */ + +static int viacam_g_chip_ident(struct file *file, void *priv, + struct v4l2_dbg_chip_ident *ident) +{ + struct via_camera *cam = priv; + + ident->ident = V4L2_IDENT_NONE; + ident->revision = 0; + if (v4l2_chip_match_host(&ident->match)) { + ident->ident = V4L2_IDENT_VIA_VX855; + return 0; + } + return sensor_call(cam, core, g_chip_ident, ident); +} + +/* + * Control ops are passed through to the sensor. + */ +static int viacam_queryctrl(struct file *filp, void *priv, + struct v4l2_queryctrl *qc) +{ + struct via_camera *cam = priv; + int ret; + + mutex_lock(&cam->lock); + ret = sensor_call(cam, core, queryctrl, qc); + mutex_unlock(&cam->lock); + return ret; +} + + +static int viacam_g_ctrl(struct file *filp, void *priv, + struct v4l2_control *ctrl) +{ + struct via_camera *cam = priv; + int ret; + + mutex_lock(&cam->lock); + ret = sensor_call(cam, core, g_ctrl, ctrl); + mutex_unlock(&cam->lock); + return ret; +} + + +static int viacam_s_ctrl(struct file *filp, void *priv, + struct v4l2_control *ctrl) +{ + struct via_camera *cam = priv; + int ret; + + mutex_lock(&cam->lock); + ret = sensor_call(cam, core, s_ctrl, ctrl); + mutex_unlock(&cam->lock); + return ret; +} + +/* + * Only one input. + */ +static int viacam_enum_input(struct file *filp, void *priv, + struct v4l2_input *input) +{ + if (input->index != 0) + return -EINVAL; + + input->type = V4L2_INPUT_TYPE_CAMERA; + input->std = V4L2_STD_ALL; /* Not sure what should go here */ + strcpy(input->name, "Camera"); + return 0; +} + +static int viacam_g_input(struct file *filp, void *priv, unsigned int *i) +{ + *i = 0; + return 0; +} + +static int viacam_s_input(struct file *filp, void *priv, unsigned int i) +{ + if (i != 0) + return -EINVAL; + return 0; +} + +static int viacam_s_std(struct file *filp, void *priv, v4l2_std_id *std) +{ + return 0; +} + +/* + * Video format stuff. Here is our default format until + * user space messes with things. + */ +static const struct v4l2_pix_format viacam_def_pix_format = { + .width = VGA_WIDTH, + .height = VGA_HEIGHT, + .pixelformat = V4L2_PIX_FMT_YUYV, + .field = V4L2_FIELD_NONE, + .bytesperline = VGA_WIDTH * 2, + .sizeimage = VGA_WIDTH * VGA_HEIGHT * 2, +}; + +static const enum v4l2_mbus_pixelcode via_def_mbus_code = V4L2_MBUS_FMT_YUYV8_2X8; + +static int viacam_enum_fmt_vid_cap(struct file *filp, void *priv, + struct v4l2_fmtdesc *fmt) +{ + if (fmt->index >= N_VIA_FMTS) + return -EINVAL; + strlcpy(fmt->description, via_formats[fmt->index].desc, + sizeof(fmt->description)); + fmt->pixelformat = via_formats[fmt->index].pixelformat; + return 0; +} + +/* + * Figure out proper image dimensions, but always force the + * sensor to VGA. + */ +static void viacam_fmt_pre(struct v4l2_pix_format *userfmt, + struct v4l2_pix_format *sensorfmt) +{ + *sensorfmt = *userfmt; + if (userfmt->width < QCIF_WIDTH || userfmt->height < QCIF_HEIGHT) { + userfmt->width = QCIF_WIDTH; + userfmt->height = QCIF_HEIGHT; + } + if (userfmt->width > VGA_WIDTH || userfmt->height > VGA_HEIGHT) { + userfmt->width = VGA_WIDTH; + userfmt->height = VGA_HEIGHT; + } + sensorfmt->width = VGA_WIDTH; + sensorfmt->height = VGA_HEIGHT; +} + +static void viacam_fmt_post(struct v4l2_pix_format *userfmt, + struct v4l2_pix_format *sensorfmt) +{ + struct via_format *f = via_find_format(userfmt->pixelformat); + + sensorfmt->bytesperline = sensorfmt->width * f->bpp; + sensorfmt->sizeimage = sensorfmt->height * sensorfmt->bytesperline; + userfmt->pixelformat = sensorfmt->pixelformat; + userfmt->field = sensorfmt->field; + userfmt->bytesperline = 2 * userfmt->width; + userfmt->sizeimage = userfmt->bytesperline * userfmt->height; +} + + +/* + * The real work of figuring out a workable format. + */ +static int viacam_do_try_fmt(struct via_camera *cam, + struct v4l2_pix_format *upix, struct v4l2_pix_format *spix) +{ + int ret; + struct v4l2_mbus_framefmt mbus_fmt; + struct via_format *f = via_find_format(upix->pixelformat); + + upix->pixelformat = f->pixelformat; + viacam_fmt_pre(upix, spix); + v4l2_fill_mbus_format(&mbus_fmt, upix, f->mbus_code); + ret = sensor_call(cam, video, try_mbus_fmt, &mbus_fmt); + v4l2_fill_pix_format(spix, &mbus_fmt); + viacam_fmt_post(upix, spix); + return ret; +} + + + +static int viacam_try_fmt_vid_cap(struct file *filp, void *priv, + struct v4l2_format *fmt) +{ + struct via_camera *cam = priv; + struct v4l2_format sfmt; + int ret; + + mutex_lock(&cam->lock); + ret = viacam_do_try_fmt(cam, &fmt->fmt.pix, &sfmt.fmt.pix); + mutex_unlock(&cam->lock); + return ret; +} + + +static int viacam_g_fmt_vid_cap(struct file *filp, void *priv, + struct v4l2_format *fmt) +{ + struct via_camera *cam = priv; + + mutex_lock(&cam->lock); + fmt->fmt.pix = cam->user_format; + mutex_unlock(&cam->lock); + return 0; +} + +static int viacam_s_fmt_vid_cap(struct file *filp, void *priv, + struct v4l2_format *fmt) +{ + struct via_camera *cam = priv; + int ret; + struct v4l2_format sfmt; + struct via_format *f = via_find_format(fmt->fmt.pix.pixelformat); + + /* + * Camera must be idle or we can't mess with the + * video setup. + */ + mutex_lock(&cam->lock); + if (cam->opstate != S_IDLE) { + ret = -EBUSY; + goto out; + } + /* + * Let the sensor code look over and tweak the + * requested formatting. + */ + ret = viacam_do_try_fmt(cam, &fmt->fmt.pix, &sfmt.fmt.pix); + if (ret) + goto out; + /* + * OK, let's commit to the new format. + */ + cam->user_format = fmt->fmt.pix; + cam->sensor_format = sfmt.fmt.pix; + cam->mbus_code = f->mbus_code; + ret = viacam_configure_sensor(cam); + if (!ret) + ret = viacam_config_controller(cam); +out: + mutex_unlock(&cam->lock); + return ret; +} + +static int viacam_querycap(struct file *filp, void *priv, + struct v4l2_capability *cap) +{ + strcpy(cap->driver, "via-camera"); + strcpy(cap->card, "via-camera"); + cap->version = 1; + cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | + V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; + return 0; +} + +/* + * Streaming operations - pure videobuf stuff. + */ +static int viacam_reqbufs(struct file *filp, void *priv, + struct v4l2_requestbuffers *rb) +{ + struct via_camera *cam = priv; + + return videobuf_reqbufs(&cam->vb_queue, rb); +} + +static int viacam_querybuf(struct file *filp, void *priv, + struct v4l2_buffer *buf) +{ + struct via_camera *cam = priv; + + return videobuf_querybuf(&cam->vb_queue, buf); +} + +static int viacam_qbuf(struct file *filp, void *priv, struct v4l2_buffer *buf) +{ + struct via_camera *cam = priv; + + return videobuf_qbuf(&cam->vb_queue, buf); +} + +static int viacam_dqbuf(struct file *filp, void *priv, struct v4l2_buffer *buf) +{ + struct via_camera *cam = priv; + + return videobuf_dqbuf(&cam->vb_queue, buf, filp->f_flags & O_NONBLOCK); +} + +static int viacam_streamon(struct file *filp, void *priv, enum v4l2_buf_type t) +{ + struct via_camera *cam = priv; + int ret = 0; + + if (t != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + mutex_lock(&cam->lock); + if (cam->opstate != S_IDLE) { + ret = -EBUSY; + goto out; + } + /* + * Enforce the V4l2 "only one owner gets to read data" rule. + */ + if (cam->owner && cam->owner != filp) { + ret = -EBUSY; + goto out; + } + cam->owner = filp; + /* + * Configure things if need be. + */ + if (test_bit(CF_CONFIG_NEEDED, &cam->flags)) { + ret = viacam_configure_sensor(cam); + if (ret) + goto out; + ret = viacam_config_controller(cam); + if (ret) + goto out; + } + /* + * If the CPU goes into C3, the DMA transfer gets corrupted and + * users start filing unsightly bug reports. Put in a "latency" + * requirement which will keep the CPU out of the deeper sleep + * states. + */ + pm_qos_add_request(&cam->qos_request, PM_QOS_CPU_DMA_LATENCY, 50); + /* + * Fire things up. + */ + INIT_LIST_HEAD(&cam->buffer_queue); + ret = videobuf_streamon(&cam->vb_queue); + if (!ret) + viacam_start_engine(cam); +out: + mutex_unlock(&cam->lock); + return ret; +} + +static int viacam_streamoff(struct file *filp, void *priv, enum v4l2_buf_type t) +{ + struct via_camera *cam = priv; + int ret; + + if (t != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + mutex_lock(&cam->lock); + if (cam->opstate != S_RUNNING) { + ret = -EINVAL; + goto out; + } + pm_qos_remove_request(&cam->qos_request); + viacam_stop_engine(cam); + /* + * Videobuf will recycle all of the outstanding buffers, but + * we should be sure we don't retain any references to + * any of them. + */ + ret = videobuf_streamoff(&cam->vb_queue); + INIT_LIST_HEAD(&cam->buffer_queue); +out: + mutex_unlock(&cam->lock); + return ret; +} + +#ifdef CONFIG_VIDEO_V4L1_COMPAT +static int viacam_vidiocgmbuf(struct file *filp, void *priv, + struct video_mbuf *mbuf) +{ + struct via_camera *cam = priv; + + return videobuf_cgmbuf(&cam->vb_queue, mbuf, 6); +} +#endif + +/* G/S_PARM */ + +static int viacam_g_parm(struct file *filp, void *priv, + struct v4l2_streamparm *parm) +{ + struct via_camera *cam = priv; + int ret; + + mutex_lock(&cam->lock); + ret = sensor_call(cam, video, g_parm, parm); + mutex_unlock(&cam->lock); + parm->parm.capture.readbuffers = cam->n_cap_bufs; + return ret; +} + +static int viacam_s_parm(struct file *filp, void *priv, + struct v4l2_streamparm *parm) +{ + struct via_camera *cam = priv; + int ret; + + mutex_lock(&cam->lock); + ret = sensor_call(cam, video, s_parm, parm); + mutex_unlock(&cam->lock); + parm->parm.capture.readbuffers = cam->n_cap_bufs; + return ret; +} + +static int viacam_enum_framesizes(struct file *filp, void *priv, + struct v4l2_frmsizeenum *sizes) +{ + if (sizes->index != 0) + return -EINVAL; + sizes->type = V4L2_FRMSIZE_TYPE_CONTINUOUS; + sizes->stepwise.min_width = QCIF_WIDTH; + sizes->stepwise.min_height = QCIF_HEIGHT; + sizes->stepwise.max_width = VGA_WIDTH; + sizes->stepwise.max_height = VGA_HEIGHT; + sizes->stepwise.step_width = sizes->stepwise.step_height = 1; + return 0; +} + +static int viacam_enum_frameintervals(struct file *filp, void *priv, + struct v4l2_frmivalenum *interval) +{ + struct via_camera *cam = priv; + int ret; + + mutex_lock(&cam->lock); + ret = sensor_call(cam, video, enum_frameintervals, interval); + mutex_unlock(&cam->lock); + return ret; +} + + + +static const struct v4l2_ioctl_ops viacam_ioctl_ops = { + .vidioc_g_chip_ident = viacam_g_chip_ident, + .vidioc_queryctrl = viacam_queryctrl, + .vidioc_g_ctrl = viacam_g_ctrl, + .vidioc_s_ctrl = viacam_s_ctrl, + .vidioc_enum_input = viacam_enum_input, + .vidioc_g_input = viacam_g_input, + .vidioc_s_input = viacam_s_input, + .vidioc_s_std = viacam_s_std, + .vidioc_enum_fmt_vid_cap = viacam_enum_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = viacam_try_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = viacam_g_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = viacam_s_fmt_vid_cap, + .vidioc_querycap = viacam_querycap, + .vidioc_reqbufs = viacam_reqbufs, + .vidioc_querybuf = viacam_querybuf, + .vidioc_qbuf = viacam_qbuf, + .vidioc_dqbuf = viacam_dqbuf, + .vidioc_streamon = viacam_streamon, + .vidioc_streamoff = viacam_streamoff, + .vidioc_g_parm = viacam_g_parm, + .vidioc_s_parm = viacam_s_parm, + .vidioc_enum_framesizes = viacam_enum_framesizes, + .vidioc_enum_frameintervals = viacam_enum_frameintervals, +#ifdef CONFIG_VIDEO_V4L1_COMPAT + .vidiocgmbuf = viacam_vidiocgmbuf, +#endif +}; + +/*----------------------------------------------------------------------------*/ + +/* + * Power management. + */ + +/* + * Setup stuff. + */ + +static struct video_device viacam_v4l_template = { + .name = "via-camera", + .minor = -1, + .tvnorms = V4L2_STD_NTSC_M, + .current_norm = V4L2_STD_NTSC_M, + .fops = &viacam_fops, + .ioctl_ops = &viacam_ioctl_ops, + .release = video_device_release_empty, /* Check this */ +}; + + +static __devinit int viacam_probe(struct platform_device *pdev) +{ + int ret; + struct i2c_adapter *sensor_adapter; + struct viafb_dev *viadev = pdev->dev.platform_data; + + /* + * Note that there are actually two capture channels on + * the device. We only deal with one for now. That + * is encoded here; nothing else assumes it's dealing with + * a unique capture device. + */ + struct via_camera *cam; + + /* + * Ensure that frame buffer memory has been set aside for + * this purpose. As an arbitrary limit, refuse to work + * with less than two frames of VGA 16-bit data. + * + * If we ever support the second port, we'll need to set + * aside more memory. + */ + if (viadev->camera_fbmem_size < (VGA_HEIGHT*VGA_WIDTH*4)) { + printk(KERN_ERR "viacam: insufficient FB memory reserved\n"); + return -ENOMEM; + } + if (viadev->engine_mmio == NULL) { + printk(KERN_ERR "viacam: No I/O memory, so no pictures\n"); + return -ENOMEM; + } + /* + * Basic structure initialization. + */ + cam = kzalloc (sizeof(struct via_camera), GFP_KERNEL); + if (cam == NULL) + return -ENOMEM; + via_cam_info = cam; + cam->platdev = pdev; + cam->viadev = viadev; + cam->users = 0; + cam->owner = NULL; + cam->opstate = S_IDLE; + cam->user_format = cam->sensor_format = viacam_def_pix_format; + mutex_init(&cam->lock); + INIT_LIST_HEAD(&cam->buffer_queue); + cam->mmio = viadev->engine_mmio; + cam->fbmem = viadev->fbmem; + cam->fb_offset = viadev->camera_fbmem_offset; + cam->flags = 1 << CF_CONFIG_NEEDED; + cam->mbus_code = via_def_mbus_code; + /* + * Tell V4L that we exist. + */ + ret = v4l2_device_register(&pdev->dev, &cam->v4l2_dev); + if (ret) { + dev_err(&pdev->dev, "Unable to register v4l2 device\n"); + return ret; + } + /* + * Convince the system that we can do DMA. + */ + pdev->dev.dma_mask = &viadev->pdev->dma_mask; + dma_set_mask(&pdev->dev, 0xffffffff); + /* + * Fire up the capture port. The write to 0x78 looks purely + * OLPCish; any system will need to tweak 0x1e. + */ + via_write_reg_mask(VIASR, 0x78, 0, 0x80); + via_write_reg_mask(VIASR, 0x1e, 0xc0, 0xc0); + /* + * Get the sensor powered up. + */ + ret = via_sensor_power_setup(cam); + if (ret) + goto out_unregister; + via_sensor_power_up(cam); + + /* + * See if we can't find it on the bus. The VIA_PORT_31 assumption + * is OLPC-specific. 0x42 assumption is ov7670-specific. + */ + sensor_adapter = viafb_find_i2c_adapter(VIA_PORT_31); + cam->sensor = v4l2_i2c_new_subdev(&cam->v4l2_dev, sensor_adapter, + "ov7670", "ov7670", 0x42 >> 1, NULL); + if (cam->sensor == NULL) { + dev_err(&pdev->dev, "Unable to find the sensor!\n"); + ret = -ENODEV; + goto out_power_down; + } + /* + * Get the IRQ. + */ + viacam_int_disable(cam); + ret = request_threaded_irq(viadev->pdev->irq, viacam_quick_irq, + viacam_irq, IRQF_SHARED, "via-camera", cam); + if (ret) + goto out_power_down; + /* + * Tell V4l2 that we exist. + */ + cam->vdev = viacam_v4l_template; + cam->vdev.v4l2_dev = &cam->v4l2_dev; + ret = video_register_device(&cam->vdev, VFL_TYPE_GRABBER, -1); + if (ret) + goto out_irq; + video_set_drvdata(&cam->vdev, cam); + + /* Power the sensor down until somebody opens the device */ + via_sensor_power_down(cam); + return 0; + +out_irq: + free_irq(viadev->pdev->irq, cam); +out_power_down: + via_sensor_power_release(cam); +out_unregister: + v4l2_device_unregister(&cam->v4l2_dev); + return ret; +} + +static __devexit int viacam_remove(struct platform_device *pdev) +{ + struct via_camera *cam = via_cam_info; + struct viafb_dev *viadev = pdev->dev.platform_data; + + video_unregister_device(&cam->vdev); + v4l2_device_unregister(&cam->v4l2_dev); + free_irq(viadev->pdev->irq, cam); + via_sensor_power_release(cam); + via_cam_info = NULL; + return 0; +} + + +static struct platform_driver viacam_driver = { + .driver = { + .name = "viafb-camera", + }, + .probe = viacam_probe, + .remove = viacam_remove, +}; + + +#ifdef CONFIG_OLPC_XO_1_5 +/* + * The OLPC folks put the serial port on the same pin as + * the camera. They also get grumpy if we break the + * serial port and keep them from using it. So we have + * to check the serial enable bit and not step on it. + */ +#define VIACAM_SERIAL_DEVFN 0x88 +#define VIACAM_SERIAL_CREG 0x46 +#define VIACAM_SERIAL_BIT 0x40 + +static __devinit int viacam_check_serial_port(void) +{ + struct pci_bus *pbus = pci_find_bus(0, 0); + u8 cbyte; + + pci_bus_read_config_byte(pbus, VIACAM_SERIAL_DEVFN, + VIACAM_SERIAL_CREG, &cbyte); + if ((cbyte & VIACAM_SERIAL_BIT) == 0) + return 0; /* Not enabled */ + if (override_serial == 0) { + printk(KERN_NOTICE "Via camera: serial port is enabled, " \ + "refusing to load.\n"); + printk(KERN_NOTICE "Specify override_serial=1 to force " \ + "module loading.\n"); + return -EBUSY; + } + printk(KERN_NOTICE "Via camera: overriding serial port\n"); + pci_bus_write_config_byte(pbus, VIACAM_SERIAL_DEVFN, + VIACAM_SERIAL_CREG, cbyte & ~VIACAM_SERIAL_BIT); + return 0; +} +#endif + + + + +static int viacam_init(void) +{ +#ifdef CONFIG_OLPC_XO_1_5 + if (viacam_check_serial_port()) + return -EBUSY; +#endif + return platform_driver_register(&viacam_driver); +} +module_init(viacam_init); + +static void viacam_exit(void) +{ + platform_driver_unregister(&viacam_driver); +} +module_exit(viacam_exit); diff --git a/drivers/media/video/via-camera.h b/drivers/media/video/via-camera.h new file mode 100644 index 00000000000..b12a4b3d616 --- /dev/null +++ b/drivers/media/video/via-camera.h @@ -0,0 +1,93 @@ +/* + * VIA Camera register definitions. + */ +#define VCR_INTCTRL 0x300 /* Capture interrupt control */ +#define VCR_IC_EAV 0x0001 /* End of active video status */ +#define VCR_IC_EVBI 0x0002 /* End of VBI status */ +#define VCR_IC_FBOTFLD 0x0004 /* "flipping" Bottom field is active */ +#define VCR_IC_ACTBUF 0x0018 /* Active video buffer */ +#define VCR_IC_VSYNC 0x0020 /* 0 = VB, 1 = active video */ +#define VCR_IC_BOTFLD 0x0040 /* Bottom field is active */ +#define VCR_IC_FFULL 0x0080 /* FIFO full */ +#define VCR_IC_INTEN 0x0100 /* End of active video int. enable */ +#define VCR_IC_VBIINT 0x0200 /* End of VBI int enable */ +#define VCR_IC_VBIBUF 0x0400 /* Current VBI buffer */ + +#define VCR_TSC 0x308 /* Transport stream control */ +#define VCR_TSC_ENABLE 0x000001 /* Transport stream input enable */ +#define VCR_TSC_DROPERR 0x000002 /* Drop error packets */ +#define VCR_TSC_METHOD 0x00000c /* DMA method (non-functional) */ +#define VCR_TSC_COUNT 0x07fff0 /* KByte or packet count */ +#define VCR_TSC_CBMODE 0x080000 /* Change buffer by byte count */ +#define VCR_TSC_PSSIG 0x100000 /* Packet starting signal disable */ +#define VCR_TSC_BE 0x200000 /* MSB first (serial mode) */ +#define VCR_TSC_SERIAL 0x400000 /* Serial input (0 = parallel) */ + +#define VCR_CAPINTC 0x310 /* Capture interface control */ +#define VCR_CI_ENABLE 0x00000001 /* Capture enable */ +#define VCR_CI_BSS 0x00000002 /* WTF "bit stream selection" */ +#define VCR_CI_3BUFS 0x00000004 /* 1 = 3 buffers, 0 = 2 buffers */ +#define VCR_CI_VIPEN 0x00000008 /* VIP enable */ +#define VCR_CI_CCIR601_8 0 /* CCIR601 input stream, 8 bit */ +#define VCR_CI_CCIR656_8 0x00000010 /* ... CCIR656, 8 bit */ +#define VCR_CI_CCIR601_16 0x00000020 /* ... CCIR601, 16 bit */ +#define VCR_CI_CCIR656_16 0x00000030 /* ... CCIR656, 16 bit */ +#define VCR_CI_HDMODE 0x00000040 /* CCIR656-16 hdr decode mode; 1=16b */ +#define VCR_CI_BSWAP 0x00000080 /* Swap bytes (16-bit) */ +#define VCR_CI_YUYV 0 /* Byte order 0123 */ +#define VCR_CI_UYVY 0x00000100 /* Byte order 1032 */ +#define VCR_CI_YVYU 0x00000200 /* Byte order 0321 */ +#define VCR_CI_VYUY 0x00000300 /* Byte order 3012 */ +#define VCR_CI_VIPTYPE 0x00000400 /* VIP type */ +#define VCR_CI_IFSEN 0x00000800 /* Input field signal enable */ +#define VCR_CI_DIODD 0 /* De-interlace odd, 30fps */ +#define VCR_CI_DIEVEN 0x00001000 /* ...even field, 30fps */ +#define VCR_CI_DIBOTH 0x00002000 /* ...both fields, 60fps */ +#define VCR_CI_DIBOTH30 0x00003000 /* ...both fields, 30fps interlace */ +#define VCR_CI_CONVTYPE 0x00004000 /* 4:2:2 to 4:4:4; 1 = interpolate */ +#define VCR_CI_CFC 0x00008000 /* Capture flipping control */ +#define VCR_CI_FILTER 0x00070000 /* Horiz filter mode select + 000 = none + 001 = 2 tap + 010 = 3 tap + 011 = 4 tap + 100 = 5 tap */ +#define VCR_CI_CLKINV 0x00080000 /* Input CLK inverted */ +#define VCR_CI_VREFINV 0x00100000 /* VREF inverted */ +#define VCR_CI_HREFINV 0x00200000 /* HREF inverted */ +#define VCR_CI_FLDINV 0x00400000 /* Field inverted */ +#define VCR_CI_CLKPIN 0x00800000 /* Capture clock pin */ +#define VCR_CI_THRESH 0x0f000000 /* Capture fifo threshold */ +#define VCR_CI_HRLE 0x10000000 /* Positive edge of HREF */ +#define VCR_CI_VRLE 0x20000000 /* Positive edge of VREF */ +#define VCR_CI_OFLDINV 0x40000000 /* Field output inverted */ +#define VCR_CI_CLKEN 0x80000000 /* Capture clock enable */ + +#define VCR_HORRANGE 0x314 /* Active video horizontal range */ +#define VCR_VERTRANGE 0x318 /* Active video vertical range */ +#define VCR_AVSCALE 0x31c /* Active video scaling control */ +#define VCR_AVS_HEN 0x00000800 /* Horizontal scale enable */ +#define VCR_AVS_VEN 0x04000000 /* Vertical enable */ +#define VCR_VBIHOR 0x320 /* VBI Data horizontal range */ +#define VCR_VBIVERT 0x324 /* VBI data vertical range */ +#define VCR_VBIBUF1 0x328 /* First VBI buffer */ +#define VCR_VBISTRIDE 0x32c /* VBI stride */ +#define VCR_ANCDATACNT 0x330 /* Ancillary data count setting */ +#define VCR_MAXDATA 0x334 /* Active data count of active video */ +#define VCR_MAXVBI 0x338 /* Maximum data count of VBI */ +#define VCR_CAPDATA 0x33c /* Capture data count */ +#define VCR_VBUF1 0x340 /* First video buffer */ +#define VCR_VBUF2 0x344 /* Second video buffer */ +#define VCR_VBUF3 0x348 /* Third video buffer */ +#define VCR_VBUF_MASK 0x1ffffff0 /* Bits 28:4 */ +#define VCR_VBIBUF2 0x34c /* Second VBI buffer */ +#define VCR_VSTRIDE 0x350 /* Stride of video + coring control */ +#define VCR_VS_STRIDE_SHIFT 4 +#define VCR_VS_STRIDE 0x00001ff0 /* Stride (8-byte units) */ +#define VCR_VS_CCD 0x007f0000 /* Coring compare data */ +#define VCR_VS_COREEN 0x00800000 /* Coring enable */ +#define VCR_TS0ERR 0x354 /* TS buffer 0 error indicator */ +#define VCR_TS1ERR 0x358 /* TS buffer 0 error indicator */ +#define VCR_TS2ERR 0x35c /* TS buffer 0 error indicator */ + +/* Add 0x1000 for the second capture engine registers */ diff --git a/drivers/video/via/accel.c b/drivers/video/via/accel.c index e44893ea590..04bec058569 100644 --- a/drivers/video/via/accel.c +++ b/drivers/video/via/accel.c @@ -370,7 +370,7 @@ int viafb_init_engine(struct fb_info *info) viapar->shared->vq_vram_addr = viapar->fbmem_free; viapar->fbmem_used += VQ_SIZE; -#if defined(CONFIG_FB_VIA_CAMERA) || defined(CONFIG_FB_VIA_CAMERA_MODULE) +#if defined(CONFIG_VIDEO_VIA_CAMERA) || defined(CONFIG_VIDEO_VIA_CAMERA_MODULE) /* * Set aside a chunk of framebuffer memory for the camera * driver. Someday this driver probably needs a proper allocator diff --git a/drivers/video/via/via-core.c b/drivers/video/via/via-core.c index 66f40303311..27d7260d4f5 100644 --- a/drivers/video/via/via-core.c +++ b/drivers/video/via/via-core.c @@ -94,6 +94,13 @@ void viafb_irq_disable(u32 mask) EXPORT_SYMBOL_GPL(viafb_irq_disable); /* ---------------------------------------------------------------------- */ +/* + * Currently, the camera driver is the only user of the DMA code, so we + * only compile it in if the camera driver is being built. Chances are, + * most viafb systems will not need to have this extra code for a while. + * As soon as another user comes long, the ifdef can be removed. + */ +#if defined(CONFIG_VIDEO_VIA_CAMERA) || defined(CONFIG_VIDEO_VIA_CAMERA_MODULE) /* * Access to the DMA engine. This currently provides what the camera * driver needs (i.e. outgoing only) but is easily expandable if need @@ -322,7 +329,7 @@ int viafb_dma_copy_out_sg(unsigned int offset, struct scatterlist *sg, int nsg) return 0; } EXPORT_SYMBOL_GPL(viafb_dma_copy_out_sg); - +#endif /* CONFIG_VIDEO_VIA_CAMERA */ /* ---------------------------------------------------------------------- */ /* @@ -507,7 +514,12 @@ static struct viafb_subdev_info { }, { .name = "viafb-i2c", - } + }, +#if defined(CONFIG_VIDEO_VIA_CAMERA) || defined(CONFIG_VIDEO_VIA_CAMERA_MODULE) + { + .name = "viafb-camera", + }, +#endif }; #define N_SUBDEVS ARRAY_SIZE(viafb_subdevs) diff --git a/include/linux/via-core.h b/include/linux/via-core.h index 7ffb521e1a7..38bffd8ccca 100644 --- a/include/linux/via-core.h +++ b/include/linux/via-core.h @@ -81,7 +81,7 @@ struct viafb_dev { unsigned long fbmem_start; long fbmem_len; void __iomem *fbmem; -#if defined(CONFIG_FB_VIA_CAMERA) || defined(CONFIG_FB_VIA_CAMERA_MODULE) +#if defined(CONFIG_VIDEO_VIA_CAMERA) || defined(CONFIG_VIDEO_VIA_CAMERA_MODULE) long camera_fbmem_offset; long camera_fbmem_size; #endif @@ -138,6 +138,7 @@ void viafb_irq_disable(u32 mask); #define VDE_I_LVDSSIEN 0x40000000 /* LVDS Sense enable */ #define VDE_I_ENABLE 0x80000000 /* Global interrupt enable */ +#if defined(CONFIG_VIDEO_VIA_CAMERA) || defined(CONFIG_VIDEO_VIA_CAMERA_MODULE) /* * DMA management. */ @@ -172,6 +173,7 @@ int viafb_dma_copy_out_sg(unsigned int offset, struct scatterlist *sg, int nsg); */ #define VGA_WIDTH 640 #define VGA_HEIGHT 480 +#endif /* CONFIG_VIDEO_VIA_CAMERA */ /* * Indexed port operations. Note that these are all multi-op diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h index aeb4ff9c614..51e89f2267b 100644 --- a/include/media/v4l2-chip-ident.h +++ b/include/media/v4l2-chip-ident.h @@ -115,6 +115,10 @@ enum { V4L2_IDENT_VPX3216B = 3216, V4L2_IDENT_VPX3220A = 3220, + /* VX855 just ident 3409 */ + /* Other via devs could use 3314, 3324, 3327, 3336, 3364, 3353 */ + V4L2_IDENT_VIA_VX855 = 3409, + /* module tvp5150 */ V4L2_IDENT_TVP5150 = 5150, -- cgit v1.2.3