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-rw-r--r--drivers/media/video/em28xx/Kconfig12
-rw-r--r--drivers/media/video/em28xx/Makefile6
-rw-r--r--drivers/media/video/em28xx/em28xx-cards.c292
-rw-r--r--drivers/media/video/em28xx/em28xx-core.c817
-rw-r--r--drivers/media/video/em28xx/em28xx-i2c.c586
-rw-r--r--drivers/media/video/em28xx/em28xx-input.c184
-rw-r--r--drivers/media/video/em28xx/em28xx-video.c1933
-rw-r--r--drivers/media/video/em28xx/em28xx.h513
8 files changed, 4343 insertions, 0 deletions
diff --git a/drivers/media/video/em28xx/Kconfig b/drivers/media/video/em28xx/Kconfig
new file mode 100644
index 00000000000..885fd017008
--- /dev/null
+++ b/drivers/media/video/em28xx/Kconfig
@@ -0,0 +1,12 @@
+config VIDEO_EM28XX
+ tristate "Empia EM2800/2820/2840 USB video capture support"
+ depends on VIDEO_DEV && USB && I2C
+ select VIDEO_BUF
+ select VIDEO_TUNER
+ select VIDEO_TVEEPROM
+ select VIDEO_IR
+ ---help---
+ This is a video4linux driver for Empia 28xx based TV cards.
+
+ To compile this driver as a module, choose M here: the
+ module will be called em28xx
diff --git a/drivers/media/video/em28xx/Makefile b/drivers/media/video/em28xx/Makefile
new file mode 100644
index 00000000000..da457a05b0d
--- /dev/null
+++ b/drivers/media/video/em28xx/Makefile
@@ -0,0 +1,6 @@
+em28xx-objs := em28xx-video.o em28xx-i2c.o em28xx-cards.o em28xx-core.o \
+ em28xx-input.o
+
+obj-$(CONFIG_VIDEO_EM28XX) += em28xx.o
+
+EXTRA_CFLAGS += -I$(src)/..
diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c
new file mode 100644
index 00000000000..57779e63f35
--- /dev/null
+++ b/drivers/media/video/em28xx/em28xx-cards.c
@@ -0,0 +1,292 @@
+/*
+ em28xx-cards.c - driver for Empia EM2800/EM2820/2840 USB video capture devices
+
+ Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
+ Markus Rechberger <mrechberger@gmail.com>
+ Mauro Carvalho Chehab <mchehab@brturbo.com.br>
+ Sascha Sommer <saschasommer@freenet.de>
+
+ 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
+ (at your option) 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/usb.h>
+#include <media/tuner.h>
+#include <media/audiochip.h>
+#include <media/tveeprom.h>
+#include "msp3400.h"
+
+#include "em28xx.h"
+
+struct em28xx_board em28xx_boards[] = {
+ [EM2800_BOARD_UNKNOWN] = {
+ .name = "Unknown EM2800 video grabber",
+ .is_em2800 = 1,
+ .vchannels = 2,
+ .norm = VIDEO_MODE_PAL,
+ .tda9887_conf = TDA9887_PRESENT,
+ .has_tuner = 1,
+ .decoder = EM28XX_SAA7113,
+ .input = {{
+ .type = EM28XX_VMUX_COMPOSITE1,
+ .vmux = 0,
+ .amux = 1,
+ },{
+ .type = EM28XX_VMUX_SVIDEO,
+ .vmux = 9,
+ .amux = 1,
+ }},
+ },
+ [EM2820_BOARD_UNKNOWN] = {
+ .name = "Unknown EM2820/2840 video grabber",
+ .is_em2800 = 0,
+ .vchannels = 2,
+ .norm = VIDEO_MODE_PAL,
+ .tda9887_conf = TDA9887_PRESENT,
+ .has_tuner = 1,
+ .decoder = EM28XX_SAA7113,
+ .input = {{
+ .type = EM28XX_VMUX_COMPOSITE1,
+ .vmux = 0,
+ .amux = 1,
+ },{
+ .type = EM28XX_VMUX_SVIDEO,
+ .vmux = 9,
+ .amux = 1,
+ }},
+ },
+ [EM2820_BOARD_TERRATEC_CINERGY_250] = {
+ .name = "Terratec Cinergy 250 USB",
+ .vchannels = 3,
+ .norm = VIDEO_MODE_PAL,
+ .tuner_type = TUNER_LG_PAL_NEW_TAPC,
+ .tda9887_conf = TDA9887_PRESENT,
+ .has_tuner = 1,
+ .decoder = EM28XX_SAA7113,
+ .input = {{
+ .type = EM28XX_VMUX_TELEVISION,
+ .vmux = 2,
+ .amux = 0,
+ },{
+ .type = EM28XX_VMUX_COMPOSITE1,
+ .vmux = 0,
+ .amux = 1,
+ },{
+ .type = EM28XX_VMUX_SVIDEO,
+ .vmux = 9,
+ .amux = 1,
+ }},
+ },
+ [EM2820_BOARD_PINNACLE_USB_2] = {
+ .name = "Pinnacle PCTV USB 2",
+ .vchannels = 3,
+ .norm = VIDEO_MODE_PAL,
+ .tuner_type = TUNER_LG_PAL_NEW_TAPC,
+ .tda9887_conf = TDA9887_PRESENT,
+ .has_tuner = 1,
+ .decoder = EM28XX_SAA7113,
+ .input = {{
+ .type = EM28XX_VMUX_TELEVISION,
+ .vmux = 2,
+ .amux = 0,
+ },{
+ .type = EM28XX_VMUX_COMPOSITE1,
+ .vmux = 0,
+ .amux = 1,
+ },{
+ .type = EM28XX_VMUX_SVIDEO,
+ .vmux = 9,
+ .amux = 1,
+ }},
+ },
+ [EM2820_BOARD_HAUPPAUGE_WINTV_USB_2] = {
+ .name = "Hauppauge WinTV USB 2",
+ .vchannels = 3,
+ .norm = VIDEO_MODE_NTSC,
+ .tuner_type = TUNER_PHILIPS_FM1236_MK3,
+ .tda9887_conf = TDA9887_PRESENT|TDA9887_PORT1_ACTIVE|TDA9887_PORT2_ACTIVE,
+ .has_tuner = 1,
+ .decoder = EM28XX_TVP5150,
+ .has_msp34xx = 1,
+ /*FIXME: S-Video not tested */
+ .input = {{
+ .type = EM28XX_VMUX_TELEVISION,
+ .vmux = 0,
+ .amux = 6,
+ },{
+ .type = EM28XX_VMUX_SVIDEO,
+ .vmux = 2,
+ .amux = 1,
+ }},
+ },
+ [EM2820_BOARD_MSI_VOX_USB_2] = {
+ .name = "MSI VOX USB 2.0",
+ .vchannels = 3,
+ .norm = VIDEO_MODE_PAL,
+ .tuner_type = TUNER_LG_PAL_NEW_TAPC,
+ .tda9887_conf = TDA9887_PRESENT|TDA9887_PORT1_ACTIVE|TDA9887_PORT2_ACTIVE,
+ .has_tuner = 1,
+ .decoder = EM28XX_SAA7114,
+ .input = {{
+ .type = EM28XX_VMUX_TELEVISION,
+ .vmux = 4,
+ .amux = 0,
+ },{
+ .type = EM28XX_VMUX_COMPOSITE1,
+ .vmux = 0,
+ .amux = 1,
+ },{
+ .type = EM28XX_VMUX_SVIDEO,
+ .vmux = 9,
+ .amux = 1,
+ }},
+ },
+ [EM2800_BOARD_TERRATEC_CINERGY_200] = {
+ .name = "Terratec Cinergy 200 USB",
+ .is_em2800 = 1,
+ .vchannels = 3,
+ .norm = VIDEO_MODE_PAL,
+ .tuner_type = TUNER_LG_PAL_NEW_TAPC,
+ .tda9887_conf = TDA9887_PRESENT,
+ .has_tuner = 1,
+ .decoder = EM28XX_SAA7113,
+ .input = {{
+ .type = EM28XX_VMUX_TELEVISION,
+ .vmux = 2,
+ .amux = 0,
+ },{
+ .type = EM28XX_VMUX_COMPOSITE1,
+ .vmux = 0,
+ .amux = 1,
+ },{
+ .type = EM28XX_VMUX_SVIDEO,
+ .vmux = 9,
+ .amux = 1,
+ }},
+ },
+ [EM2800_BOARD_LEADTEK_WINFAST_USBII] = {
+ .name = "Leadtek Winfast USB II",
+ .is_em2800 = 1,
+ .vchannels = 3,
+ .norm = VIDEO_MODE_PAL,
+ .tuner_type = TUNER_LG_PAL_NEW_TAPC,
+ .tda9887_conf = TDA9887_PRESENT,
+ .has_tuner = 1,
+ .decoder = EM28XX_SAA7113,
+ .input = {{
+ .type = EM28XX_VMUX_TELEVISION,
+ .vmux = 2,
+ .amux = 0,
+ },{
+ .type = EM28XX_VMUX_COMPOSITE1,
+ .vmux = 0,
+ .amux = 1,
+ },{
+ .type = EM28XX_VMUX_SVIDEO,
+ .vmux = 9,
+ .amux = 1,
+ }},
+ },
+ [EM2800_BOARD_KWORLD_USB2800] = {
+ .name = "Kworld USB2800",
+ .is_em2800 = 1,
+ .vchannels = 3,
+ .norm = VIDEO_MODE_PAL,
+ .tuner_type = TUNER_PHILIPS_ATSC,
+ .tda9887_conf = TDA9887_PRESENT,
+ .has_tuner = 1,
+ .decoder = EM28XX_SAA7113,
+ .input = {{
+ .type = EM28XX_VMUX_TELEVISION,
+ .vmux = 2,
+ .amux = 0,
+ },{
+ .type = EM28XX_VMUX_COMPOSITE1,
+ .vmux = 0,
+ .amux = 1,
+ },{
+ .type = EM28XX_VMUX_SVIDEO,
+ .vmux = 9,
+ .amux = 1,
+ }},
+ },
+ [EM2820_BOARD_PINNACLE_DVC_90] = {
+ .name = "Pinnacle Dazzle DVC 90",
+ .vchannels = 3,
+ .norm = VIDEO_MODE_PAL,
+ .has_tuner = 0,
+ .decoder = EM28XX_SAA7113,
+ .input = {{
+ .type = EM28XX_VMUX_COMPOSITE1,
+ .vmux = 0,
+ .amux = 1,
+ },{
+ .type = EM28XX_VMUX_SVIDEO,
+ .vmux = 9,
+ .amux = 1,
+ }},
+ },
+};
+const unsigned int em28xx_bcount = ARRAY_SIZE(em28xx_boards);
+
+/* table of devices that work with this driver */
+struct usb_device_id em28xx_id_table [] = {
+ { USB_DEVICE(0xeb1a, 0x2800), .driver_info = EM2800_BOARD_UNKNOWN },
+ { USB_DEVICE(0xeb1a, 0x2820), .driver_info = EM2820_BOARD_MSI_VOX_USB_2 },
+ { USB_DEVICE(0x0ccd, 0x0036), .driver_info = EM2820_BOARD_TERRATEC_CINERGY_250 },
+ { USB_DEVICE(0x2304, 0x0208), .driver_info = EM2820_BOARD_PINNACLE_USB_2 },
+ { USB_DEVICE(0x2040, 0x4200), .driver_info = EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 },
+ { USB_DEVICE(0x2304, 0x0207), .driver_info = EM2820_BOARD_PINNACLE_DVC_90 },
+ { },
+};
+
+void em28xx_card_setup(struct em28xx *dev)
+{
+ /* request some modules */
+ if (dev->model == EM2820_BOARD_HAUPPAUGE_WINTV_USB_2) {
+ struct tveeprom tv;
+ struct v4l2_audioout ao;
+#ifdef CONFIG_MODULES
+ request_module("tveeprom");
+ request_module("ir-kbd-i2c");
+ request_module("msp3400");
+#endif
+ /* Call first TVeeprom */
+
+ dev->i2c_client.addr = 0xa0 >> 1;
+ tveeprom_hauppauge_analog(&dev->i2c_client, &tv, dev->eedata);
+
+ dev->tuner_type= tv.tuner_type;
+ if (tv.audio_processor == AUDIO_CHIP_MSP34XX) {
+ dev->has_msp34xx=1;
+ memset (&ao,0,sizeof(ao));
+
+ ao.index=2;
+ ao.mode=V4L2_AUDMODE_32BITS;
+ em28xx_i2c_call_clients(dev, VIDIOC_S_AUDOUT, &ao);
+ } else
+ dev->has_msp34xx=0;
+ }
+}
+
+EXPORT_SYMBOL(em28xx_boards);
+EXPORT_SYMBOL(em28xx_bcount);
+EXPORT_SYMBOL(em28xx_id_table);
+
+MODULE_DEVICE_TABLE (usb, em28xx_id_table);
diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c
new file mode 100644
index 00000000000..d54bc012748
--- /dev/null
+++ b/drivers/media/video/em28xx/em28xx-core.c
@@ -0,0 +1,817 @@
+/*
+ em28xx-core.c - driver for Empia EM2800/EM2820/2840 USB video capture devices
+
+ Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
+ Markus Rechberger <mrechberger@gmail.com>
+ Mauro Carvalho Chehab <mchehab@brturbo.com.br>
+ Sascha Sommer <saschasommer@freenet.de>
+
+ 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
+ (at your option) 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/usb.h>
+#include <linux/vmalloc.h>
+
+#include "em28xx.h"
+
+/* #define ENABLE_DEBUG_ISOC_FRAMES */
+
+unsigned int core_debug;
+module_param(core_debug,int,0644);
+MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
+
+#define em28xx_coredbg(fmt, arg...) do {\
+ if (core_debug) \
+ printk(KERN_INFO "%s %s :"fmt, \
+ dev->name, __FUNCTION__ , ##arg); } while (0)
+
+unsigned int reg_debug;
+module_param(reg_debug,int,0644);
+MODULE_PARM_DESC(reg_debug,"enable debug messages [URB reg]");
+
+#define em28xx_regdbg(fmt, arg...) do {\
+ if (reg_debug) \
+ printk(KERN_INFO "%s %s :"fmt, \
+ dev->name, __FUNCTION__ , ##arg); } while (0)
+
+unsigned int isoc_debug;
+module_param(isoc_debug,int,0644);
+MODULE_PARM_DESC(isoc_debug,"enable debug messages [isoc transfers]");
+
+#define em28xx_isocdbg(fmt, arg...) do {\
+ if (isoc_debug) \
+ printk(KERN_INFO "%s %s :"fmt, \
+ dev->name, __FUNCTION__ , ##arg); } while (0)
+
+static int alt = EM28XX_PINOUT;
+module_param(alt, int, 0644);
+MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
+
+/* ------------------------------------------------------------------ */
+/* debug help functions */
+
+static const char *v4l1_ioctls[] = {
+ "0", "CGAP", "GCHAN", "SCHAN", "GTUNER", "STUNER", "GPICT", "SPICT",
+ "CCAPTURE", "GWIN", "SWIN", "GFBUF", "SFBUF", "KEY", "GFREQ",
+ "SFREQ", "GAUDIO", "SAUDIO", "SYNC", "MCAPTURE", "GMBUF", "GUNIT",
+ "GCAPTURE", "SCAPTURE", "SPLAYMODE", "SWRITEMODE", "GPLAYINFO",
+ "SMICROCODE", "GVBIFMT", "SVBIFMT" };
+#define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls)
+
+static const char *v4l2_ioctls[] = {
+ "QUERYCAP", "1", "ENUM_PIXFMT", "ENUM_FBUFFMT", "G_FMT", "S_FMT",
+ "G_COMP", "S_COMP", "REQBUFS", "QUERYBUF", "G_FBUF", "S_FBUF",
+ "G_WIN", "S_WIN", "PREVIEW", "QBUF", "16", "DQBUF", "STREAMON",
+ "STREAMOFF", "G_PERF", "G_PARM", "S_PARM", "G_STD", "S_STD",
+ "ENUMSTD", "ENUMINPUT", "G_CTRL", "S_CTRL", "G_TUNER", "S_TUNER",
+ "G_FREQ", "S_FREQ", "G_AUDIO", "S_AUDIO", "35", "QUERYCTRL",
+ "QUERYMENU", "G_INPUT", "S_INPUT", "ENUMCVT", "41", "42", "43",
+ "44", "45", "G_OUTPUT", "S_OUTPUT", "ENUMOUTPUT", "G_AUDOUT",
+ "S_AUDOUT", "ENUMFX", "G_EFFECT", "S_EFFECT", "G_MODULATOR",
+ "S_MODULATOR"
+};
+#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
+
+void em28xx_print_ioctl(char *name, unsigned int cmd)
+{
+ char *dir;
+
+ switch (_IOC_DIR(cmd)) {
+ case _IOC_NONE: dir = "--"; break;
+ case _IOC_READ: dir = "r-"; break;
+ case _IOC_WRITE: dir = "-w"; break;
+ case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
+ default: dir = "??"; break;
+ }
+ switch (_IOC_TYPE(cmd)) {
+ case 'v':
+ printk(KERN_DEBUG "%s: ioctl 0x%08x (v4l1, %s, VIDIOC%s)\n",
+ name, cmd, dir, (_IOC_NR(cmd) < V4L1_IOCTLS) ?
+ v4l1_ioctls[_IOC_NR(cmd)] : "???");
+ break;
+ case 'V':
+ printk(KERN_DEBUG "%s: ioctl 0x%08x (v4l2, %s, VIDIOC_%s)\n",
+ name, cmd, dir, (_IOC_NR(cmd) < V4L2_IOCTLS) ?
+ v4l2_ioctls[_IOC_NR(cmd)] : "???");
+ break;
+ default:
+ printk(KERN_DEBUG "%s: ioctl 0x%08x (???, %s, #%d)\n",
+ name, cmd, dir, _IOC_NR(cmd));
+ }
+}
+
+static void *rvmalloc(size_t size)
+{
+ void *mem;
+ unsigned long adr;
+
+ size = PAGE_ALIGN(size);
+
+ mem = vmalloc_32((unsigned long)size);
+ if (!mem)
+ return NULL;
+
+ memset(mem, 0, size);
+
+ adr = (unsigned long)mem;
+ while (size > 0) {
+ SetPageReserved(vmalloc_to_page((void *)adr));
+ adr += PAGE_SIZE;
+ size -= PAGE_SIZE;
+ }
+
+ return mem;
+}
+
+static void rvfree(void *mem, size_t size)
+{
+ unsigned long adr;
+
+ if (!mem)
+ return;
+
+ size = PAGE_ALIGN(size);
+
+ adr = (unsigned long)mem;
+ while (size > 0) {
+ ClearPageReserved(vmalloc_to_page((void *)adr));
+ adr += PAGE_SIZE;
+ size -= PAGE_SIZE;
+ }
+
+ vfree(mem);
+}
+
+/*
+ * em28xx_request_buffers()
+ * allocate a number of buffers
+ */
+u32 em28xx_request_buffers(struct em28xx *dev, u32 count)
+{
+ const size_t imagesize = PAGE_ALIGN(dev->frame_size); /*needs to be page aligned cause the buffers can be mapped individually! */
+ void *buff = NULL;
+ u32 i;
+ em28xx_coredbg("requested %i buffers with size %i", count, imagesize);
+ if (count > EM28XX_NUM_FRAMES)
+ count = EM28XX_NUM_FRAMES;
+
+ dev->num_frames = count;
+ while (dev->num_frames > 0) {
+ if ((buff = rvmalloc(dev->num_frames * imagesize)))
+ break;
+ dev->num_frames--;
+ }
+
+ for (i = 0; i < dev->num_frames; i++) {
+ dev->frame[i].bufmem = buff + i * imagesize;
+ dev->frame[i].buf.index = i;
+ dev->frame[i].buf.m.offset = i * imagesize;
+ dev->frame[i].buf.length = dev->frame_size;
+ dev->frame[i].buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ dev->frame[i].buf.sequence = 0;
+ dev->frame[i].buf.field = V4L2_FIELD_NONE;
+ dev->frame[i].buf.memory = V4L2_MEMORY_MMAP;
+ dev->frame[i].buf.flags = 0;
+ }
+ return dev->num_frames;
+}
+
+/*
+ * em28xx_queue_unusedframes()
+ * add all frames that are not currently in use to the inbuffer queue
+ */
+void em28xx_queue_unusedframes(struct em28xx *dev)
+{
+ unsigned long lock_flags;
+ u32 i;
+
+ for (i = 0; i < dev->num_frames; i++)
+ if (dev->frame[i].state == F_UNUSED) {
+ dev->frame[i].state = F_QUEUED;
+ spin_lock_irqsave(&dev->queue_lock, lock_flags);
+ list_add_tail(&dev->frame[i].frame, &dev->inqueue);
+ spin_unlock_irqrestore(&dev->queue_lock, lock_flags);
+ }
+}
+
+/*
+ * em28xx_release_buffers()
+ * free frame buffers
+ */
+void em28xx_release_buffers(struct em28xx *dev)
+{
+ if (dev->num_frames) {
+ rvfree(dev->frame[0].bufmem,
+ dev->num_frames * PAGE_ALIGN(dev->frame[0].buf.length));
+ dev->num_frames = 0;
+ }
+}
+
+/*
+ * em28xx_read_reg_req()
+ * reads data from the usb device specifying bRequest
+ */
+int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
+ char *buf, int len)
+{
+ int ret, byte;
+
+ em28xx_regdbg("req=%02x, reg=%02x ", req, reg);
+
+ ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), req,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0x0000, reg, buf, len, HZ);
+
+ if (reg_debug){
+ printk(ret < 0 ? " failed!\n" : "%02x values: ", ret);
+ for (byte = 0; byte < len; byte++) {
+ printk(" %02x", buf[byte]);
+ }
+ printk("\n");
+ }
+
+ return ret;
+}
+
+/*
+ * em28xx_read_reg_req()
+ * reads data from the usb device specifying bRequest
+ */
+int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg)
+{
+ u8 val;
+ int ret;
+
+ em28xx_regdbg("req=%02x, reg=%02x:", req, reg);
+
+ ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), req,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0x0000, reg, &val, 1, HZ);
+
+ if (reg_debug)
+ printk(ret < 0 ? " failed!\n" : "%02x\n", val);
+
+ if (ret < 0)
+ return ret;
+
+ return val;
+}
+
+int em28xx_read_reg(struct em28xx *dev, u16 reg)
+{
+ return em28xx_read_reg_req(dev, USB_REQ_GET_STATUS, reg);
+}
+
+/*
+ * em28xx_write_regs_req()
+ * sends data to the usb device, specifying bRequest
+ */
+int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
+ int len)
+{
+ int ret;
+
+ /*usb_control_msg seems to expect a kmalloced buffer */
+ unsigned char *bufs = kmalloc(len, GFP_KERNEL);
+
+ em28xx_regdbg("req=%02x reg=%02x:", req, reg);
+
+ if (reg_debug) {
+ int i;
+ for (i = 0; i < len; ++i)
+ printk (" %02x", (unsigned char)buf[i]);
+ printk ("\n");
+ }
+
+ if (!bufs)
+ return -ENOMEM;
+ memcpy(bufs, buf, len);
+ ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), req,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0x0000, reg, bufs, len, HZ);
+ mdelay(5); /* FIXME: magic number */
+ kfree(bufs);
+ return ret;
+}
+
+int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len)
+{
+ return em28xx_write_regs_req(dev, USB_REQ_GET_STATUS, reg, buf, len);
+}
+
+/*
+ * em28xx_write_reg_bits()
+ * sets only some bits (specified by bitmask) of a register, by first reading
+ * the actual value
+ */
+int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
+ u8 bitmask)
+{
+ int oldval;
+ u8 newval;
+ if ((oldval = em28xx_read_reg(dev, reg)) < 0)
+ return oldval;
+ newval = (((u8) oldval) & ~bitmask) | (val & bitmask);
+ return em28xx_write_regs(dev, reg, &newval, 1);
+}
+
+/*
+ * em28xx_write_ac97()
+ * write a 16 bit value to the specified AC97 address (LSB first!)
+ */
+int em28xx_write_ac97(struct em28xx *dev, u8 reg, u8 * val)
+{
+ int ret;
+ u8 addr = reg & 0x7f;
+ if ((ret = em28xx_write_regs(dev, AC97LSB_REG, val, 2)) < 0)
+ return ret;
+ if ((ret = em28xx_write_regs(dev, AC97ADDR_REG, &addr, 1)) < 0)
+ return ret;
+ if ((ret = em28xx_read_reg(dev, AC97BUSY_REG)) < 0)
+ return ret;
+ else if (((u8) ret) & 0x01) {
+ em28xx_warn ("AC97 command still being exectuted: not handled properly!\n");
+ }
+ return 0;
+}
+
+int em28xx_audio_analog_set(struct em28xx *dev)
+{
+ char s[2] = { 0x00, 0x00 };
+ s[0] |= 0x1f - dev->volume;
+ s[1] |= 0x1f - dev->volume;
+ if (dev->mute)
+ s[1] |= 0x80;
+ return em28xx_write_ac97(dev, MASTER_AC97, s);
+}
+
+
+int em28xx_colorlevels_set_default(struct em28xx *dev)
+{
+ em28xx_write_regs(dev, YGAIN_REG, "\x10", 1); /* contrast */
+ em28xx_write_regs(dev, YOFFSET_REG, "\x00", 1); /* brightness */
+ em28xx_write_regs(dev, UVGAIN_REG, "\x10", 1); /* saturation */
+ em28xx_write_regs(dev, UOFFSET_REG, "\x00", 1);
+ em28xx_write_regs(dev, VOFFSET_REG, "\x00", 1);
+ em28xx_write_regs(dev, SHARPNESS_REG, "\x00", 1);
+
+ em28xx_write_regs(dev, GAMMA_REG, "\x20", 1);
+ em28xx_write_regs(dev, RGAIN_REG, "\x20", 1);
+ em28xx_write_regs(dev, GGAIN_REG, "\x20", 1);
+ em28xx_write_regs(dev, BGAIN_REG, "\x20", 1);
+ em28xx_write_regs(dev, ROFFSET_REG, "\x00", 1);
+ em28xx_write_regs(dev, GOFFSET_REG, "\x00", 1);
+ return em28xx_write_regs(dev, BOFFSET_REG, "\x00", 1);
+}
+
+int em28xx_capture_start(struct em28xx *dev, int start)
+{
+ int ret;
+ /* FIXME: which is the best order? */
+ /* video registers are sampled by VREF */
+ if ((ret = em28xx_write_reg_bits(dev, USBSUSP_REG, start ? 0x10 : 0x00,
+ 0x10)) < 0)
+ return ret;
+ /* enable video capture */
+ return em28xx_write_regs(dev, VINENABLE_REG, start ? "\x67" : "\x27", 1);
+}
+
+int em28xx_outfmt_set_yuv422(struct em28xx *dev)
+{
+ em28xx_write_regs(dev, OUTFMT_REG, "\x34", 1);
+ em28xx_write_regs(dev, VINMODE_REG, "\x10", 1);
+ return em28xx_write_regs(dev, VINCTRL_REG, "\x11", 1);
+}
+
+int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax, u8 ymin,
+ u8 ymax)
+{
+ em28xx_coredbg("em28xx Scale: (%d,%d)-(%d,%d)\n", xmin, ymin, xmax, ymax);
+
+ em28xx_write_regs(dev, XMIN_REG, &xmin, 1);
+ em28xx_write_regs(dev, XMAX_REG, &xmax, 1);
+ em28xx_write_regs(dev, YMIN_REG, &ymin, 1);
+ return em28xx_write_regs(dev, YMAX_REG, &ymax, 1);
+}
+
+int em28xx_capture_area_set(struct em28xx *dev, u8 hstart, u8 vstart,
+ u16 width, u16 height)
+{
+ u8 cwidth = width;
+ u8 cheight = height;
+ u8 overflow = (height >> 7 & 0x02) | (width >> 8 & 0x01);
+
+ em28xx_coredbg("em28xx Area Set: (%d,%d)\n", (width | (overflow & 2) << 7),
+ (height | (overflow & 1) << 8));
+
+ em28xx_write_regs(dev, HSTART_REG, &hstart, 1);
+ em28xx_write_regs(dev, VSTART_REG, &vstart, 1);
+ em28xx_write_regs(dev, CWIDTH_REG, &cwidth, 1);
+ em28xx_write_regs(dev, CHEIGHT_REG, &cheight, 1);
+ return em28xx_write_regs(dev, OFLOW_REG, &overflow, 1);
+}
+
+int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v)
+{
+ u8 mode;
+ /* the em2800 scaler only supports scaling down to 50% */
+ if(dev->is_em2800)
+ mode = (v ? 0x20 : 0x00) | (h ? 0x10 : 0x00);
+ else {
+ u8 buf[2];
+ buf[0] = h;
+ buf[1] = h >> 8;
+ em28xx_write_regs(dev, HSCALELOW_REG, (char *)buf, 2);
+ buf[0] = v;
+ buf[1] = v >> 8;
+ em28xx_write_regs(dev, VSCALELOW_REG, (char *)buf, 2);
+ /* it seems that both H and V scalers must be active to work correctly */
+ mode = (h || v)? 0x30: 0x00;
+ }
+ return em28xx_write_reg_bits(dev, COMPR_REG, mode, 0x30);
+}
+
+/* FIXME: this only function read values from dev */
+int em28xx_resolution_set(struct em28xx *dev)
+{
+ int width, height;
+ width = norm_maxw(dev);
+ height = norm_maxh(dev) >> 1;
+
+ em28xx_outfmt_set_yuv422(dev);
+ em28xx_accumulator_set(dev, 1, (width - 4) >> 2, 1, (height - 4) >> 2);
+ em28xx_capture_area_set(dev, 0, 0, width >> 2, height >> 2);
+ return em28xx_scaler_set(dev, dev->hscale, dev->vscale);
+}
+
+
+/******************* isoc transfer handling ****************************/
+
+#ifdef ENABLE_DEBUG_ISOC_FRAMES
+static void em28xx_isoc_dump(struct urb *urb, struct pt_regs *regs)
+{
+ int len = 0;
+ int ntrans = 0;
+ int i;
+
+ printk(KERN_DEBUG "isocIrq: sf=%d np=%d ec=%x\n",
+ urb->start_frame, urb->number_of_packets,
+ urb->error_count);
+ for (i = 0; i < urb->number_of_packets; i++) {
+ unsigned char *buf =
+ urb->transfer_buffer +
+ urb->iso_frame_desc[i].offset;
+ int alen = urb->iso_frame_desc[i].actual_length;
+ if (alen > 0) {
+ if (buf[0] == 0x88) {
+ ntrans++;
+ len += alen;
+ } else if (buf[0] == 0x22) {
+ printk(KERN_DEBUG
+ "= l=%d nt=%d bpp=%d\n",
+ len - 4 * ntrans, ntrans,
+ ntrans == 0 ? 0 : len / ntrans);
+ ntrans = 1;
+ len = alen;
+ } else
+ printk(KERN_DEBUG "!\n");
+ }
+ printk(KERN_DEBUG " n=%d s=%d al=%d %x\n", i,
+ urb->iso_frame_desc[i].status,
+ urb->iso_frame_desc[i].actual_length,
+ (unsigned int)
+ *((unsigned char *)(urb->transfer_buffer +
+ urb->iso_frame_desc[i].
+ offset)));
+ }
+}
+#endif
+
+static inline int em28xx_isoc_video(struct em28xx *dev,struct em28xx_frame_t **f,
+ unsigned long *lock_flags, unsigned char buf)
+{
+ if (!(buf & 0x01)) {
+ if ((*f)->state == F_GRABBING) {
+ /*previous frame is incomplete */
+ if ((*f)->fieldbytesused < dev->field_size) {
+ (*f)->state = F_ERROR;
+ em28xx_isocdbg ("dropping incomplete bottom field (%i missing bytes)",
+ dev->field_size-(*f)->fieldbytesused);
+ } else {
+ (*f)->state = F_DONE;
+ (*f)->buf.bytesused = dev->frame_size;
+ }
+ }
+ if ((*f)->state == F_DONE || (*f)->state == F_ERROR) {
+ /* move current frame to outqueue and get next free buffer from inqueue */
+ spin_lock_irqsave(&dev-> queue_lock, *lock_flags);
+ list_move_tail(&(*f)->frame, &dev->outqueue);
+ if (!list_empty(&dev->inqueue))
+ (*f) = list_entry(dev-> inqueue.next,
+ struct em28xx_frame_t,frame);
+ else
+ (*f) = NULL;
+ spin_unlock_irqrestore(&dev->queue_lock,*lock_flags);
+ }
+ if (!(*f)) {
+ em28xx_isocdbg ("new frame but no buffer is free");
+ return -1;
+ }
+ do_gettimeofday(&(*f)->buf.timestamp);
+ (*f)->buf.sequence = ++dev->frame_count;
+ (*f)->buf.field = V4L2_FIELD_INTERLACED;
+ (*f)->state = F_GRABBING;
+ (*f)->buf.bytesused = 0;
+ (*f)->top_field = 1;
+ (*f)->fieldbytesused = 0;
+ } else {
+ /* acquiring bottom field */
+ if ((*f)->state == F_GRABBING) {
+ if (!(*f)->top_field) {
+ (*f)->state = F_ERROR;
+ em28xx_isocdbg ("unexpected begin of bottom field; discarding it");
+ } else if ((*f)-> fieldbytesused < dev->field_size - 172) {
+ (*f)->state = F_ERROR;
+ em28xx_isocdbg ("dropping incomplete top field (%i missing bytes)",
+ dev->field_size-(*f)->fieldbytesused);
+ } else {
+ (*f)->top_field = 0;
+ (*f)->fieldbytesused = 0;
+ }
+ }
+ }
+ return (0);
+}
+
+static inline void em28xx_isoc_video_copy(struct em28xx *dev,
+ struct em28xx_frame_t **f, unsigned char *buf, int len)
+{
+ void *fieldstart, *startwrite, *startread;
+ int linesdone, currlinedone, offset, lencopy,remain;
+
+ if(dev->frame_size != (*f)->buf.length){
+ em28xx_err("frame_size %i and buf.length %i are different!!!\n",dev->frame_size,(*f)->buf.length);
+ return;
+ }
+
+ if ((*f)->fieldbytesused + len > dev->field_size)
+ len =dev->field_size - (*f)->fieldbytesused;
+
+ if (buf[0] != 0x88 && buf[0] != 0x22) {
+ em28xx_isocdbg("frame is not complete\n");
+ startread = buf;
+ len+=4;
+ } else
+ startread = buf + 4;
+
+ remain = len;
+
+ if ((*f)->top_field)
+ fieldstart = (*f)->bufmem;
+ else
+ fieldstart = (*f)->bufmem + dev->bytesperline;
+
+ linesdone = (*f)->fieldbytesused / dev->bytesperline;
+ currlinedone = (*f)->fieldbytesused % dev->bytesperline;
+ offset = linesdone * dev->bytesperline * 2 + currlinedone;
+ startwrite = fieldstart + offset;
+ lencopy = dev->bytesperline - currlinedone;
+ lencopy = lencopy > remain ? remain : lencopy;
+
+ memcpy(startwrite, startread, lencopy);
+ remain -= lencopy;
+
+ while (remain > 0) {
+ startwrite += lencopy + dev->bytesperline;
+ startread += lencopy;
+ if (dev->bytesperline > remain)
+ lencopy = remain;
+ else
+ lencopy = dev->bytesperline;
+
+ memcpy(startwrite, startread, lencopy);
+ remain -= lencopy;
+ }
+
+ (*f)->fieldbytesused += len;
+}
+
+/*
+ * em28xx_isoIrq()
+ * handles the incoming isoc urbs and fills the frames from our inqueue
+ */
+void em28xx_isocIrq(struct urb *urb, struct pt_regs *regs)
+{
+ struct em28xx *dev = urb->context;
+ int i, status;
+ struct em28xx_frame_t **f;
+ unsigned long lock_flags;
+
+ if (!dev)
+ return;
+#ifdef ENABLE_DEBUG_ISOC_FRAMES
+ if (isoc_debug>1)
+ em28xx_isoc_dump(urb, regs);
+#endif
+
+ if (urb->status == -ENOENT)
+ return;
+
+ f = &dev->frame_current;
+
+ if (dev->stream == STREAM_INTERRUPT) {
+ dev->stream = STREAM_OFF;
+ if ((*f))
+ (*f)->state = F_QUEUED;
+ em28xx_isocdbg("stream interrupted");
+ wake_up_interruptible(&dev->wait_stream);
+ }
+
+ if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
+ return;
+
+ if (dev->stream == STREAM_ON && !list_empty(&dev->inqueue)) {
+ if (!(*f))
+ (*f) = list_entry(dev->inqueue.next,
+ struct em28xx_frame_t, frame);
+
+ for (i = 0; i < urb->number_of_packets; i++) {
+ unsigned char *buf = urb->transfer_buffer +
+ urb->iso_frame_desc[i].offset;
+ int len = urb->iso_frame_desc[i].actual_length - 4;
+
+ if (urb->iso_frame_desc[i].status) {
+ em28xx_isocdbg("data error: [%d] len=%d, status=%d", i,
+ urb->iso_frame_desc[i].actual_length,
+ urb->iso_frame_desc[i].status);
+ if (urb->iso_frame_desc[i].status != -EPROTO)
+ continue;
+ }
+ if (urb->iso_frame_desc[i].actual_length <= 0) {
+ em28xx_isocdbg("packet %d is empty",i);
+ continue;
+ }
+ if (urb->iso_frame_desc[i].actual_length >
+ dev->max_pkt_size) {
+ em28xx_isocdbg("packet bigger than packet size");
+ continue;
+ }
+ /*new frame */
+ if (buf[0] == 0x22 && buf[1] == 0x5a) {
+ em28xx_isocdbg("Video frame, length=%i!",len);
+
+ if (em28xx_isoc_video(dev,f,&lock_flags,buf[2]))
+ break;
+ } else if (buf[0]==0x33 && buf[1]==0x95 && buf[2]==0x00) {
+ em28xx_isocdbg("VBI HEADER!!!");
+ }
+
+ /* actual copying */
+ if ((*f)->state == F_GRABBING) {
+ em28xx_isoc_video_copy(dev,f,buf, len);
+ }
+ }
+ }
+
+ for (i = 0; i < urb->number_of_packets; i++) {
+ urb->iso_frame_desc[i].status = 0;
+ urb->iso_frame_desc[i].actual_length = 0;
+ }
+
+ urb->status = 0;
+ if ((status = usb_submit_urb(urb, GFP_ATOMIC))) {
+ em28xx_errdev("resubmit of urb failed (error=%i)\n", status);
+ dev->state |= DEV_MISCONFIGURED;
+ }
+ wake_up_interruptible(&dev->wait_frame);
+ return;
+}
+
+/*
+ * em28xx_uninit_isoc()
+ * deallocates the buffers and urbs allocated during em28xx_init_iosc()
+ */
+void em28xx_uninit_isoc(struct em28xx *dev)
+{
+ int i;
+
+ for (i = 0; i < EM28XX_NUM_BUFS; i++) {
+ if (dev->urb[i]) {
+ usb_kill_urb(dev->urb[i]);
+ if (dev->transfer_buffer[i]){
+ usb_buffer_free(dev->udev,(EM28XX_NUM_PACKETS*dev->max_pkt_size),dev->transfer_buffer[i],dev->urb[i]->transfer_dma);
+ }
+ usb_free_urb(dev->urb[i]);
+ }
+ dev->urb[i] = NULL;
+ dev->transfer_buffer[i] = NULL;
+ }
+ em28xx_capture_start(dev, 0);
+}
+
+/*
+ * em28xx_init_isoc()
+ * allocates transfer buffers and submits the urbs for isoc transfer
+ */
+int em28xx_init_isoc(struct em28xx *dev)
+{
+ /* change interface to 3 which allowes the biggest packet sizes */
+ int i, errCode;
+ const int sb_size = EM28XX_NUM_PACKETS * dev->max_pkt_size;
+
+ /* reset streaming vars */
+ dev->frame_current = NULL;
+ dev->frame_count = 0;
+
+ /* allocate urbs */
+ for (i = 0; i < EM28XX_NUM_BUFS; i++) {
+ struct urb *urb;
+ int j, k;
+ /* allocate transfer buffer */
+ urb = usb_alloc_urb(EM28XX_NUM_PACKETS, GFP_KERNEL);
+ if (!urb){
+ em28xx_errdev("cannot alloc urb %i\n", i);
+ em28xx_uninit_isoc(dev);
+ return -ENOMEM;
+ }
+ dev->transfer_buffer[i] = usb_buffer_alloc(dev->udev, sb_size, GFP_KERNEL,&urb->transfer_dma);
+ if (!dev->transfer_buffer[i]) {
+ em28xx_errdev
+ ("unable to allocate %i bytes for transfer buffer %i\n",
+ sb_size, i);
+ em28xx_uninit_isoc(dev);
+ return -ENOMEM;
+ }
+ memset(dev->transfer_buffer[i], 0, sb_size);
+ urb->dev = dev->udev;
+ urb->context = dev;
+ urb->pipe = usb_rcvisocpipe(dev->udev, 0x82);
+ urb->transfer_flags = URB_ISO_ASAP;
+ urb->interval = 1;
+ urb->transfer_buffer = dev->transfer_buffer[i];
+ urb->complete = em28xx_isocIrq;
+ urb->number_of_packets = EM28XX_NUM_PACKETS;
+ urb->transfer_buffer_length = sb_size;
+ for (j = k = 0; j < EM28XX_NUM_PACKETS;
+ j++, k += dev->max_pkt_size) {
+ urb->iso_frame_desc[j].offset = k;
+ urb->iso_frame_desc[j].length =
+ dev->max_pkt_size;
+ }
+ dev->urb[i] = urb;
+ }
+
+ /* submit urbs */
+ for (i = 0; i < EM28XX_NUM_BUFS; i++) {
+ errCode = usb_submit_urb(dev->urb[i], GFP_KERNEL);
+ if (errCode) {
+ em28xx_errdev("submit of urb %i failed (error=%i)\n", i,
+ errCode);
+ em28xx_uninit_isoc(dev);
+ return errCode;
+ }
+ }
+
+ return 0;
+}
+
+int em28xx_set_alternate(struct em28xx *dev)
+{
+ int errCode, prev_alt = dev->alt;
+ dev->alt = alt;
+ if (dev->alt == 0) {
+ int i;
+ for(i=0;i< dev->num_alt; i++)
+ if(dev->alt_max_pkt_size[i]>dev->alt_max_pkt_size[dev->alt])
+ dev->alt=i;
+ }
+
+ if (dev->alt != prev_alt) {
+ dev->max_pkt_size = dev->alt_max_pkt_size[dev->alt];
+ em28xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n", dev->alt,
+ dev->max_pkt_size);
+ errCode = usb_set_interface(dev->udev, 0, dev->alt);
+ if (errCode < 0) {
+ em28xx_errdev ("cannot change alternate number to %d (error=%i)\n",
+ dev->alt, errCode);
+ return errCode;
+ }
+ }
+ return 0;
+}
diff --git a/drivers/media/video/em28xx/em28xx-i2c.c b/drivers/media/video/em28xx/em28xx-i2c.c
new file mode 100644
index 00000000000..b32d9852f34
--- /dev/null
+++ b/drivers/media/video/em28xx/em28xx-i2c.c
@@ -0,0 +1,586 @@
+/*
+ em28xx-i2c.c - driver for Empia EM2800/EM2820/2840 USB video capture devices
+
+ Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
+ Markus Rechberger <mrechberger@gmail.com>
+ Mauro Carvalho Chehab <mchehab@brturbo.com.br>
+ Sascha Sommer <saschasommer@freenet.de>
+
+ 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
+ (at your option) 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/usb.h>
+#include <linux/i2c.h>
+#include <linux/video_decoder.h>
+
+#include "em28xx.h"
+#include <media/tuner.h>
+
+/* ----------------------------------------------------------- */
+
+static unsigned int i2c_scan = 0;
+module_param(i2c_scan, int, 0444);
+MODULE_PARM_DESC(i2c_scan, "scan i2c bus at insmod time");
+
+static unsigned int i2c_debug = 0;
+module_param(i2c_debug, int, 0644);
+MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]");
+
+#define dprintk1(lvl,fmt, args...) if (i2c_debug>=lvl) do {\
+ printk(fmt , ##args); } while (0)
+#define dprintk2(lvl,fmt, args...) if (i2c_debug>=lvl) do{ \
+ printk(KERN_DEBUG "%s at %s: " fmt, \
+ dev->name, __FUNCTION__ , ##args); } while (0)
+
+/*
+ * em2800_i2c_send_max4()
+ * send up to 4 bytes to the i2c device
+ */
+static int em2800_i2c_send_max4(struct em28xx *dev, unsigned char addr,
+ char *buf, int len)
+{
+ int ret;
+ int write_timeout;
+ unsigned char b2[6];
+ BUG_ON(len < 1 || len > 4);
+ b2[5] = 0x80 + len - 1;
+ b2[4] = addr;
+ b2[3] = buf[0];
+ if (len > 1)
+ b2[2] = buf[1];
+ if (len > 2)
+ b2[1] = buf[2];
+ if (len > 3)
+ b2[0] = buf[3];
+
+ ret = dev->em28xx_write_regs(dev, 4 - len, &b2[4 - len], 2 + len);
+ if (ret != 2 + len) {
+ em28xx_warn("writting to i2c device failed (error=%i)\n", ret);
+ return -EIO;
+ }
+ for (write_timeout = EM2800_I2C_WRITE_TIMEOUT; write_timeout > 0;
+ write_timeout -= 5) {
+ ret = dev->em28xx_read_reg(dev, 0x05);
+ if (ret == 0x80 + len - 1)
+ return len;
+ mdelay(5);
+ }
+ em28xx_warn("i2c write timed out\n");
+ return -EIO;
+}
+
+/*
+ * em2800_i2c_send_bytes()
+ */
+static int em2800_i2c_send_bytes(void *data, unsigned char addr, char *buf,
+ short len)
+{
+ char *bufPtr = buf;
+ int ret;
+ int wrcount = 0;
+ int count;
+ int maxLen = 4;
+ struct em28xx *dev = (struct em28xx *)data;
+ while (len > 0) {
+ count = (len > maxLen) ? maxLen : len;
+ ret = em2800_i2c_send_max4(dev, addr, bufPtr, count);
+ if (ret > 0) {
+ len -= count;
+ bufPtr += count;
+ wrcount += count;
+ } else
+ return (ret < 0) ? ret : -EFAULT;
+ }
+ return wrcount;
+}
+
+/*
+ * em2800_i2c_check_for_device()
+ * check if there is a i2c_device at the supplied address
+ */
+static int em2800_i2c_check_for_device(struct em28xx *dev, unsigned char addr)
+{
+ char msg;
+ int ret;
+ int write_timeout;
+ msg = addr;
+ ret = dev->em28xx_write_regs(dev, 0x04, &msg, 1);
+ if (ret < 0) {
+ em28xx_warn("setting i2c device address failed (error=%i)\n",
+ ret);
+ return ret;
+ }
+ msg = 0x84;
+ ret = dev->em28xx_write_regs(dev, 0x05, &msg, 1);
+ if (ret < 0) {
+ em28xx_warn("preparing i2c read failed (error=%i)\n", ret);
+ return ret;
+ }
+ for (write_timeout = EM2800_I2C_WRITE_TIMEOUT; write_timeout > 0;
+ write_timeout -= 5) {
+ unsigned msg = dev->em28xx_read_reg(dev, 0x5);
+ if (msg == 0x94)
+ return -ENODEV;
+ else if (msg == 0x84)
+ return 0;
+ mdelay(5);
+ }
+ return -ENODEV;
+}
+
+/*
+ * em2800_i2c_recv_bytes()
+ * read from the i2c device
+ */
+static int em2800_i2c_recv_bytes(struct em28xx *dev, unsigned char addr,
+ char *buf, int len)
+{
+ int ret;
+ /* check for the device and set i2c read address */
+ ret = em2800_i2c_check_for_device(dev, addr);
+ if (ret) {
+ em28xx_warn
+ ("preparing read at i2c address 0x%x failed (error=%i)\n",
+ addr, ret);
+ return ret;
+ }
+ ret = dev->em28xx_read_reg_req_len(dev, 0x0, 0x3, buf, len);
+ if (ret < 0) {
+ em28xx_warn("reading from i2c device at 0x%x failed (error=%i)",
+ addr, ret);
+ return ret;
+ }
+ return ret;
+}
+
+/*
+ * em28xx_i2c_send_bytes()
+ * untested for more than 4 bytes
+ */
+static int em28xx_i2c_send_bytes(void *data, unsigned char addr, char *buf,
+ short len, int stop)
+{
+ int wrcount = 0;
+ struct em28xx *dev = (struct em28xx *)data;
+
+ wrcount = dev->em28xx_write_regs_req(dev, stop ? 2 : 3, addr, buf, len);
+
+ return wrcount;
+}
+
+/*
+ * em28xx_i2c_recv_bytes()
+ * read a byte from the i2c device
+ */
+static int em28xx_i2c_recv_bytes(struct em28xx *dev, unsigned char addr,
+ char *buf, int len)
+{
+ int ret;
+ ret = dev->em28xx_read_reg_req_len(dev, 2, addr, buf, len);
+ if (ret < 0) {
+ em28xx_warn("reading i2c device failed (error=%i)\n", ret);
+ return ret;
+ }
+ if (dev->em28xx_read_reg(dev, 0x5) != 0)
+ return -ENODEV;
+ return ret;
+}
+
+/*
+ * em28xx_i2c_check_for_device()
+ * check if there is a i2c_device at the supplied address
+ */
+static int em28xx_i2c_check_for_device(struct em28xx *dev, unsigned char addr)
+{
+ char msg;
+ int ret;
+ msg = addr;
+
+ ret = dev->em28xx_read_reg_req(dev, 2, addr);
+ if (ret < 0) {
+ em28xx_warn("reading from i2c device failed (error=%i)\n", ret);
+ return ret;
+ }
+ if (dev->em28xx_read_reg(dev, 0x5) != 0)
+ return -ENODEV;
+ return 0;
+}
+
+/*
+ * em28xx_i2c_xfer()
+ * the main i2c transfer function
+ */
+static int em28xx_i2c_xfer(struct i2c_adapter *i2c_adap,
+ struct i2c_msg msgs[], int num)
+{
+ struct em28xx *dev = i2c_adap->algo_data;
+ int addr, rc, i, byte;
+
+ if (num <= 0)
+ return 0;
+ for (i = 0; i < num; i++) {
+ addr = msgs[i].addr << 1;
+ dprintk2(2,"%s %s addr=%x len=%d:",
+ (msgs[i].flags & I2C_M_RD) ? "read" : "write",
+ i == num - 1 ? "stop" : "nonstop", addr, msgs[i].len);
+ if (!msgs[i].len) { /* no len: check only for device presence */
+ if (dev->is_em2800)
+ rc = em2800_i2c_check_for_device(dev, addr);
+ else
+ rc = em28xx_i2c_check_for_device(dev, addr);
+ if (rc < 0) {
+ dprintk2(2," no device\n");
+ return rc;
+ }
+
+ } else if (msgs[i].flags & I2C_M_RD) {
+ /* read bytes */
+ if (dev->is_em2800)
+ rc = em2800_i2c_recv_bytes(dev, addr,
+ msgs[i].buf,
+ msgs[i].len);
+ else
+ rc = em28xx_i2c_recv_bytes(dev, addr,
+ msgs[i].buf,
+ msgs[i].len);
+ if (i2c_debug>=2) {
+ for (byte = 0; byte < msgs[i].len; byte++) {
+ printk(" %02x", msgs[i].buf[byte]);
+ }
+ }
+ } else {
+ /* write bytes */
+ if (i2c_debug>=2) {
+ for (byte = 0; byte < msgs[i].len; byte++)
+ printk(" %02x", msgs[i].buf[byte]);
+ }
+ if (dev->is_em2800)
+ rc = em2800_i2c_send_bytes(dev, addr,
+ msgs[i].buf,
+ msgs[i].len);
+ else
+ rc = em28xx_i2c_send_bytes(dev, addr,
+ msgs[i].buf,
+ msgs[i].len,
+ i == num - 1);
+ if (rc < 0)
+ goto err;
+ }
+ if (i2c_debug>=2)
+ printk("\n");
+ }
+
+ return num;
+ err:
+ dprintk2(2," ERROR: %i\n", rc);
+ return rc;
+}
+
+static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned char *eedata, int len)
+{
+ unsigned char buf, *p = eedata;
+ struct em28xx_eeprom *em_eeprom = (void *)eedata;
+ int i, err, size = len, block;
+
+ dev->i2c_client.addr = 0xa0 >> 1;
+
+ /* Check if board has eeprom */
+ err = i2c_master_recv(&dev->i2c_client, &buf, 0);
+ if (err < 0)
+ return -1;
+
+ buf = 0;
+ if (1 != (err = i2c_master_send(&dev->i2c_client, &buf, 1))) {
+ printk(KERN_INFO "%s: Huh, no eeprom present (err=%d)?\n",
+ dev->name, err);
+ return -1;
+ }
+ while (size > 0) {
+ if (size > 16)
+ block = 16;
+ else
+ block = size;
+
+ if (block !=
+ (err = i2c_master_recv(&dev->i2c_client, p, block))) {
+ printk(KERN_WARNING
+ "%s: i2c eeprom read error (err=%d)\n",
+ dev->name, err);
+ return -1;
+ }
+ size -= block;
+ p += block;
+ }
+ for (i = 0; i < len; i++) {
+ if (0 == (i % 16))
+ printk(KERN_INFO "%s: i2c eeprom %02x:", dev->name, i);
+ printk(" %02x", eedata[i]);
+ if (15 == (i % 16))
+ printk("\n");
+ }
+
+ printk(KERN_INFO "EEPROM ID= 0x%08x\n", em_eeprom->id);
+ printk(KERN_INFO "Vendor/Product ID= %04x:%04x\n", em_eeprom->vendor_ID,
+ em_eeprom->product_ID);
+
+ switch (em_eeprom->chip_conf >> 4 & 0x3) {
+ case 0:
+ printk(KERN_INFO "No audio on board.\n");
+ break;
+ case 1:
+ printk(KERN_INFO "AC97 audio (5 sample rates)\n");
+ break;
+ case 2:
+ printk(KERN_INFO "I2S audio, sample rate=32k\n");
+ break;
+ case 3:
+ printk(KERN_INFO "I2S audio, 3 sample rates\n");
+ break;
+ }
+
+ if (em_eeprom->chip_conf & 1 << 3)
+ printk(KERN_INFO "USB Remote wakeup capable\n");
+
+ if (em_eeprom->chip_conf & 1 << 2)
+ printk(KERN_INFO "USB Self power capable\n");
+
+ switch (em_eeprom->chip_conf & 0x3) {
+ case 0:
+ printk(KERN_INFO "500mA max power\n");
+ break;
+ case 1:
+ printk(KERN_INFO "400mA max power\n");
+ break;
+ case 2:
+ printk(KERN_INFO "300mA max power\n");
+ break;
+ case 3:
+ printk(KERN_INFO "200mA max power\n");
+ break;
+ }
+ printk(KERN_INFO "Table at 0x%02x, strings=0x%04x, 0x%04x, 0x%04x\n",
+ em_eeprom->string_idx_table,em_eeprom->string1,
+ em_eeprom->string2,em_eeprom->string3);
+
+ return 0;
+}
+
+/* ----------------------------------------------------------- */
+
+/*
+ * algo_control()
+ */
+static int algo_control(struct i2c_adapter *adapter,
+ unsigned int cmd, unsigned long arg)
+{
+ return 0;
+}
+
+/*
+ * functionality()
+ */
+static u32 functionality(struct i2c_adapter *adap)
+{
+ return I2C_FUNC_SMBUS_EMUL;
+}
+
+#ifndef I2C_PEC
+static void inc_use(struct i2c_adapter *adap)
+{
+ MOD_INC_USE_COUNT;
+}
+
+static void dec_use(struct i2c_adapter *adap)
+{
+ MOD_DEC_USE_COUNT;
+}
+#endif
+
+static int em28xx_set_tuner(int check_eeprom, struct i2c_client *client)
+{
+ struct em28xx *dev = client->adapter->algo_data;
+ struct tuner_setup tun_setup;
+
+ if (dev->has_tuner) {
+ tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
+ tun_setup.type = dev->tuner_type;
+ tun_setup.addr = dev->tuner_addr;
+
+ em28xx_i2c_call_clients(dev, TUNER_SET_TYPE_ADDR, &tun_setup);
+ }
+
+ return (0);
+}
+
+/*
+ * attach_inform()
+ * gets called when a device attaches to the i2c bus
+ * does some basic configuration
+ */
+static int attach_inform(struct i2c_client *client)
+{
+ struct em28xx *dev = client->adapter->algo_data;
+
+ switch (client->addr << 1) {
+ case 0x86:
+ em28xx_i2c_call_clients(dev, TDA9887_SET_CONFIG, &dev->tda9887_conf);
+ break;
+ case 0x42:
+ dprintk1(1,"attach_inform: saa7114 detected.\n");
+ break;
+ case 0x4a:
+ dprintk1(1,"attach_inform: saa7113 detected.\n");
+ break;
+ case 0xa0:
+ dprintk1(1,"attach_inform: eeprom detected.\n");
+ break;
+ case 0x60:
+ case 0x8e:
+ {
+ struct IR_i2c *ir = i2c_get_clientdata(client);
+ dprintk1(1,"attach_inform: IR detected (%s).\n",ir->phys);
+ em28xx_set_ir(dev,ir);
+ break;
+ }
+ case 0x80:
+ case 0x88:
+ dprintk1(1,"attach_inform: msp34xx detected.\n");
+ break;
+ case 0xb8:
+ case 0xba:
+ dprintk1(1,"attach_inform: tvp5150 detected.\n");
+ break;
+ default:
+ dprintk1(1,"attach inform: detected I2C address %x\n", client->addr << 1);
+ dev->tuner_addr = client->addr;
+ em28xx_set_tuner(-1, client);
+ }
+
+ return 0;
+}
+
+static struct i2c_algorithm em28xx_algo = {
+ .master_xfer = em28xx_i2c_xfer,
+ .algo_control = algo_control,
+ .functionality = functionality,
+};
+
+static struct i2c_adapter em28xx_adap_template = {
+#ifdef I2C_PEC
+ .owner = THIS_MODULE,
+#else
+ .inc_use = inc_use,
+ .dec_use = dec_use,
+#endif
+#ifdef I2C_CLASS_TV_ANALOG
+ .class = I2C_CLASS_TV_ANALOG,
+#endif
+ .name = "em28xx",
+ .id = I2C_HW_B_EM28XX,
+ .algo = &em28xx_algo,
+ .client_register = attach_inform,
+};
+
+static struct i2c_client em28xx_client_template = {
+ .name = "em28xx internal",
+ .flags = I2C_CLIENT_ALLOW_USE,
+};
+
+/* ----------------------------------------------------------- */
+
+/*
+ * i2c_devs
+ * incomplete list of known devices
+ */
+static char *i2c_devs[128] = {
+ [0x4a >> 1] = "saa7113h",
+ [0x60 >> 1] = "remote IR sensor",
+ [0x8e >> 1] = "remote IR sensor",
+ [0x86 >> 1] = "tda9887",
+ [0x80 >> 1] = "msp34xx",
+ [0x88 >> 1] = "msp34xx",
+ [0xa0 >> 1] = "eeprom",
+ [0xb8 >> 1] = "tvp5150a",
+ [0xba >> 1] = "tvp5150a",
+ [0xc0 >> 1] = "tuner (analog)",
+ [0xc2 >> 1] = "tuner (analog)",
+ [0xc4 >> 1] = "tuner (analog)",
+ [0xc6 >> 1] = "tuner (analog)",
+};
+
+/*
+ * do_i2c_scan()
+ * check i2c address range for devices
+ */
+static void do_i2c_scan(char *name, struct i2c_client *c)
+{
+ unsigned char buf;
+ int i, rc;
+
+ for (i = 0; i < 128; i++) {
+ c->addr = i;
+ rc = i2c_master_recv(c, &buf, 0);
+ if (rc < 0)
+ continue;
+ printk(KERN_INFO "%s: found i2c device @ 0x%x [%s]\n", name,
+ i << 1, i2c_devs[i] ? i2c_devs[i] : "???");
+ }
+}
+
+/*
+ * em28xx_i2c_call_clients()
+ * send commands to all attached i2c devices
+ */
+void em28xx_i2c_call_clients(struct em28xx *dev, unsigned int cmd, void *arg)
+{
+ BUG_ON(NULL == dev->i2c_adap.algo_data);
+ i2c_clients_command(&dev->i2c_adap, cmd, arg);
+}
+
+/*
+ * em28xx_i2c_register()
+ * register i2c bus
+ */
+int em28xx_i2c_register(struct em28xx *dev)
+{
+ BUG_ON(!dev->em28xx_write_regs || !dev->em28xx_read_reg);
+ BUG_ON(!dev->em28xx_write_regs_req || !dev->em28xx_read_reg_req);
+ dev->i2c_adap = em28xx_adap_template;
+ dev->i2c_adap.dev.parent = &dev->udev->dev;
+ strcpy(dev->i2c_adap.name, dev->name);
+ dev->i2c_adap.algo_data = dev;
+ i2c_add_adapter(&dev->i2c_adap);
+
+ dev->i2c_client = em28xx_client_template;
+ dev->i2c_client.adapter = &dev->i2c_adap;
+
+ em28xx_i2c_eeprom(dev, dev->eedata, sizeof(dev->eedata));
+
+ if (i2c_scan)
+ do_i2c_scan(dev->name, &dev->i2c_client);
+ return 0;
+}
+
+/*
+ * em28xx_i2c_unregister()
+ * unregister i2c_bus
+ */
+int em28xx_i2c_unregister(struct em28xx *dev)
+{
+ i2c_del_adapter(&dev->i2c_adap);
+ return 0;
+}
diff --git a/drivers/media/video/em28xx/em28xx-input.c b/drivers/media/video/em28xx/em28xx-input.c
new file mode 100644
index 00000000000..32c49df58ad
--- /dev/null
+++ b/drivers/media/video/em28xx/em28xx-input.c
@@ -0,0 +1,184 @@
+/*
+ handle em28xx IR remotes via linux kernel input layer.
+
+ Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
+ Markus Rechberger <mrechberger@gmail.com>
+ Mauro Carvalho Chehab <mchehab@brturbo.com.br>
+ Sascha Sommer <saschasommer@freenet.de>
+
+ 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
+ (at your option) 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
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/usb.h>
+
+#include "em28xx.h"
+
+static unsigned int disable_ir = 0;
+module_param(disable_ir, int, 0444);
+MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
+
+static unsigned int ir_debug = 0;
+module_param(ir_debug, int, 0644);
+MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
+
+#define dprintk(fmt, arg...) if (ir_debug) \
+ printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg)
+
+/* ---------------------------------------------------------------------- */
+
+static IR_KEYTAB_TYPE ir_codes_em_terratec[IR_KEYTAB_SIZE] = {
+ [ 0x01 ] = KEY_CHANNEL,
+ [ 0x02 ] = KEY_SELECT,
+ [ 0x03 ] = KEY_MUTE,
+ [ 0x04 ] = KEY_POWER,
+ [ 0x05 ] = KEY_KP1,
+ [ 0x06 ] = KEY_KP2,
+ [ 0x07 ] = KEY_KP3,
+ [ 0x08 ] = KEY_CHANNELUP,
+ [ 0x09 ] = KEY_KP4,
+ [ 0x0a ] = KEY_KP5,
+ [ 0x0b ] = KEY_KP6,
+ [ 0x0c ] = KEY_CHANNELDOWN,
+ [ 0x0d ] = KEY_KP7,
+ [ 0x0e ] = KEY_KP8,
+ [ 0x0f ] = KEY_KP9,
+ [ 0x10 ] = KEY_VOLUMEUP,
+ [ 0x11 ] = KEY_KP0,
+ [ 0x12 ] = KEY_MENU,
+ [ 0x13 ] = KEY_PRINT,
+ [ 0x14 ] = KEY_VOLUMEDOWN,
+ [ 0x16 ] = KEY_PAUSE,
+ [ 0x18 ] = KEY_RECORD,
+ [ 0x19 ] = KEY_REWIND,
+ [ 0x1a ] = KEY_PLAY,
+ [ 0x1b ] = KEY_FORWARD,
+ [ 0x1c ] = KEY_BACKSPACE,
+ [ 0x1e ] = KEY_STOP,
+ [ 0x40 ] = KEY_ZOOM,
+};
+
+/* ----------------------------------------------------------------------- */
+
+static int get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
+{
+ unsigned char b;
+
+ /* poll IR chip */
+ if (1 != i2c_master_recv(&ir->c,&b,1)) {
+ dprintk("read error\n");
+ return -EIO;
+ }
+
+ /* it seems that 0xFE indicates that a button is still hold
+ down, while 0xff indicates that no button is hold
+ down. 0xfe sequences are sometimes interrupted by 0xFF */
+
+ dprintk("key %02x\n", b);
+
+ if (b == 0xff)
+ return 0;
+
+ if (b == 0xfe)
+ /* keep old data */
+ return 1;
+
+ *ir_key = b;
+ *ir_raw = b;
+ return 1;
+}
+
+
+static int get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
+{
+ unsigned char buf[2];
+ unsigned char code;
+
+ /* poll IR chip */
+ if (2 != i2c_master_recv(&ir->c,buf,2))
+ return -EIO;
+
+ /* Does eliminate repeated parity code */
+ if (buf[1]==0xff)
+ return 0;
+
+ /* avoid fast reapeating */
+ if (buf[1]==ir->old)
+ return 0;
+ ir->old=buf[1];
+
+ /* Rearranges bits to the right order */
+ code= ((buf[0]&0x01)<<5) | /* 0010 0000 */
+ ((buf[0]&0x02)<<3) | /* 0001 0000 */
+ ((buf[0]&0x04)<<1) | /* 0000 1000 */
+ ((buf[0]&0x08)>>1) | /* 0000 0100 */
+ ((buf[0]&0x10)>>3) | /* 0000 0010 */
+ ((buf[0]&0x20)>>5); /* 0000 0001 */
+
+ dprintk("ir hauppauge (em2840): code=0x%02x (rcv=0x%02x)\n",code,buf[0]);
+
+ /* return key */
+ *ir_key = code;
+ *ir_raw = code;
+ return 1;
+}
+
+/* ----------------------------------------------------------------------- */
+void em28xx_set_ir(struct em28xx * dev,struct IR_i2c *ir)
+{
+ if (disable_ir) {
+ ir->get_key=NULL;
+ return ;
+ }
+
+ /* detect & configure */
+ switch (dev->model) {
+ case (EM2800_BOARD_UNKNOWN):
+ break;
+ case (EM2820_BOARD_UNKNOWN):
+ break;
+ case (EM2800_BOARD_TERRATEC_CINERGY_200):
+ case (EM2820_BOARD_TERRATEC_CINERGY_250):
+ ir->ir_codes = ir_codes_em_terratec;
+ ir->get_key = get_key_terratec;
+ snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (EM28XX Terratec)");
+ break;
+ case (EM2820_BOARD_PINNACLE_USB_2):
+ break;
+ case (EM2820_BOARD_HAUPPAUGE_WINTV_USB_2):
+ ir->ir_codes = ir_codes_hauppauge_new;
+ ir->get_key = get_key_em_haup;
+ snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (EM2840 Hauppauge)");
+ break;
+ case (EM2820_BOARD_MSI_VOX_USB_2):
+ break;
+ case (EM2800_BOARD_LEADTEK_WINFAST_USBII):
+ break;
+ case (EM2800_BOARD_KWORLD_USB2800):
+ break;
+ }
+}
+
+/* ----------------------------------------------------------------------
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
new file mode 100644
index 00000000000..57c1826b928
--- /dev/null
+++ b/drivers/media/video/em28xx/em28xx-video.c
@@ -0,0 +1,1933 @@
+/*
+ em28xx-video.c - driver for Empia EM2800/EM2820/2840 USB video capture devices
+
+ Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
+ Markus Rechberger <mrechberger@gmail.com>
+ Mauro Carvalho Chehab <mchehab@brturbo.com.br>
+ Sascha Sommer <saschasommer@freenet.de>
+
+ 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
+ (at your option) 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/usb.h>
+#include <linux/i2c.h>
+#include <linux/version.h>
+#include <linux/video_decoder.h>
+
+#include "em28xx.h"
+#include <media/tuner.h>
+
+#define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@sssup.it>, " \
+ "Markus Rechberger <mrechberger@gmail.com>, " \
+ "Mauro Carvalho Chehab <mchehab@brturbo.com.br>, " \
+ "Sascha Sommer <saschasommer@freenet.de>"
+
+#define DRIVER_NAME "em28xx"
+#define DRIVER_DESC "Empia em28xx based USB video device driver"
+#define EM28XX_VERSION_CODE KERNEL_VERSION(0, 0, 1)
+
+#define em28xx_videodbg(fmt, arg...) do {\
+ if (video_debug) \
+ printk(KERN_INFO "%s %s :"fmt, \
+ dev->name, __FUNCTION__ , ##arg); } while (0)
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+static LIST_HEAD(em28xx_devlist);
+
+static unsigned int card[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
+module_param_array(card, int, NULL, 0444);
+MODULE_PARM_DESC(card,"card type");
+
+static int tuner = -1;
+module_param(tuner, int, 0444);
+MODULE_PARM_DESC(tuner, "tuner type");
+
+static unsigned int video_debug = 0;
+module_param(video_debug,int,0644);
+MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
+
+/* supported tv norms */
+static struct em28xx_tvnorm tvnorms[] = {
+ {
+ .name = "PAL",
+ .id = V4L2_STD_PAL,
+ .mode = VIDEO_MODE_PAL,
+ }, {
+ .name = "NTSC",
+ .id = V4L2_STD_NTSC,
+ .mode = VIDEO_MODE_NTSC,
+ }, {
+ .name = "SECAM",
+ .id = V4L2_STD_SECAM,
+ .mode = VIDEO_MODE_SECAM,
+ }, {
+ .name = "PAL-M",
+ .id = V4L2_STD_PAL_M,
+ .mode = VIDEO_MODE_PAL,
+ }
+};
+
+static const unsigned char saa7114_i2c_init[] = {
+ 0x00,0x00,0x01,0x08,0x02,0xc4,0x03,0x30,0x04,0x90,0x05,0x90,0x06,0xeb,0x07,0xe0,
+ 0x08,0x88,0x09,0x40,0x0a,0x80,0x0b,0x44,0x0c,0x40,0x0d,0x00,0x0e,0x81,0x0f,0x2a,
+ 0x10,0x06,0x11,0x00,0x12,0xc8,0x13,0x80,0x14,0x00,0x15,0x11,0x16,0x01,0x17,0x42,
+ 0x18,0x40,0x19,0x80,0x40,0x00,0x41,0xff,0x42,0xff,0x43,0xff,0x44,0xff,0x45,0xff,
+ 0x46,0xff,0x47,0xff,0x48,0xff,0x49,0xff,0x4a,0xff,0x4b,0xff,0x4c,0xff,0x4d,0xff,
+ 0x4e,0xff,0x4f,0xff,0x50,0xff,0x51,0xff,0x52,0xff,0x53,0xff,0x54,0x5f,0x55,0xff,
+ 0x56,0xff,0x57,0xff,0x58,0x00,0x59,0x47,0x5a,0x03,0x5b,0x03,0x5d,0x3e,0x5e,0x00,
+ 0x80,0x1c,0x83,0x01,0x84,0xa5,0x85,0x10,0x86,0x45,0x87,0x41,0x88,0xf0,0x88,0x00,
+ 0x88,0xf0,0x90,0x00,0x91,0x08,0x92,0x00,0x93,0x80,0x94,0x08,0x95,0x00,0x96,0xc0,
+ 0x97,0x02,0x98,0x13,0x99,0x00,0x9a,0x38,0x9b,0x01,0x9c,0x80,0x9d,0x02,0x9e,0x06,
+ 0x9f,0x01,0xa0,0x01,0xa1,0x00,0xa2,0x00,0xa4,0x80,0xa5,0x36,0xa6,0x36,0xa8,0x67,
+ 0xa9,0x04,0xaa,0x00,0xac,0x33,0xad,0x02,0xae,0x00,0xb0,0xcd,0xb1,0x04,0xb2,0xcd,
+ 0xb3,0x04,0xb4,0x01,0xb8,0x00,0xb9,0x00,0xba,0x00,0xbb,0x00,0xbc,0x00,0xbd,0x00,
+ 0xbe,0x00,0xbf,0x00
+};
+
+#define TVNORMS ARRAY_SIZE(tvnorms)
+
+/* supported controls */
+static struct v4l2_queryctrl em28xx_qctrl[] = {
+ {
+ .id = V4L2_CID_BRIGHTNESS,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Brightness",
+ .minimum = -128,
+ .maximum = 127,
+ .step = 1,
+ .default_value = 0,
+ .flags = 0,
+ },{
+ .id = V4L2_CID_CONTRAST,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Contrast",
+ .minimum = 0x0,
+ .maximum = 0x1f,
+ .step = 0x1,
+ .default_value = 0x10,
+ .flags = 0,
+ },{
+ .id = V4L2_CID_SATURATION,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Saturation",
+ .minimum = 0x0,
+ .maximum = 0x1f,
+ .step = 0x1,
+ .default_value = 0x10,
+ .flags = 0,
+ },{
+ .id = V4L2_CID_AUDIO_VOLUME,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Volume",
+ .minimum = 0x0,
+ .maximum = 0x1f,
+ .step = 0x1,
+ .default_value = 0x1f,
+ .flags = 0,
+ },{
+ .id = V4L2_CID_AUDIO_MUTE,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Mute",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 1,
+ .flags = 0,
+ },{
+ .id = V4L2_CID_RED_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Red chroma balance",
+ .minimum = -128,
+ .maximum = 127,
+ .step = 1,
+ .default_value = 0,
+ .flags = 0,
+ },{
+ .id = V4L2_CID_BLUE_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Blue chroma balance",
+ .minimum = -128,
+ .maximum = 127,
+ .step = 1,
+ .default_value = 0,
+ .flags = 0,
+ },{
+ .id = V4L2_CID_GAMMA,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Gamma",
+ .minimum = 0x0,
+ .maximum = 0x3f,
+ .step = 0x1,
+ .default_value = 0x20,
+ .flags = 0,
+ }
+};
+
+static struct usb_driver em28xx_usb_driver;
+
+static DECLARE_MUTEX(em28xx_sysfs_lock);
+static DECLARE_RWSEM(em28xx_disconnect);
+
+/********************* v4l2 interface ******************************************/
+
+static inline unsigned long kvirt_to_pa(unsigned long adr)
+{
+ unsigned long kva, ret;
+
+ kva = (unsigned long)page_address(vmalloc_to_page((void *)adr));
+ kva |= adr & (PAGE_SIZE - 1);
+ ret = __pa(kva);
+ return ret;
+}
+
+/*
+ * em28xx_config()
+ * inits registers with sane defaults
+ */
+static int em28xx_config(struct em28xx *dev)
+{
+
+ /* Sets I2C speed to 100 KHz */
+ em28xx_write_regs_req(dev, 0x00, 0x06, "\x40", 1);
+
+ /* enable vbi capturing */
+ em28xx_audio_usb_mute(dev, 1);
+ dev->mute = 1; /* maybe not the right place... */
+ dev->volume = 0x1f;
+ em28xx_audio_analog_set(dev);
+ em28xx_audio_analog_setup(dev);
+ em28xx_outfmt_set_yuv422(dev);
+ em28xx_colorlevels_set_default(dev);
+ em28xx_compression_disable(dev);
+
+ return 0;
+}
+
+/*
+ * em28xx_config_i2c()
+ * configure i2c attached devices
+ */
+void em28xx_config_i2c(struct em28xx *dev)
+{
+ struct v4l2_frequency f;
+ struct video_decoder_init em28xx_vdi = {.data = NULL };
+
+
+ /* configure decoder */
+ if(dev->model == EM2820_BOARD_MSI_VOX_USB_2){
+ em28xx_vdi.data=saa7114_i2c_init;
+ em28xx_vdi.len=sizeof(saa7114_i2c_init);
+ }
+
+
+ em28xx_i2c_call_clients(dev, DECODER_INIT, &em28xx_vdi);
+ em28xx_i2c_call_clients(dev, DECODER_SET_INPUT, &dev->ctl_input);
+/* em28xx_i2c_call_clients(dev,DECODER_SET_PICTURE, &dev->vpic); */
+/* em28xx_i2c_call_clients(dev,DECODER_SET_NORM,&dev->tvnorm->id); */
+/* em28xx_i2c_call_clients(dev,DECODER_ENABLE_OUTPUT,&output); */
+/* em28xx_i2c_call_clients(dev,DECODER_DUMP, NULL); */
+
+ /* configure tuner */
+ f.tuner = 0;
+ f.type = V4L2_TUNER_ANALOG_TV;
+ f.frequency = 9076; /* FIXME:remove magic number */
+ dev->ctl_freq = f.frequency;
+ em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f);
+
+ /* configure tda9887 */
+
+
+/* em28xx_i2c_call_clients(dev,VIDIOC_S_STD,&dev->tvnorm->id); */
+}
+
+/*
+ * em28xx_empty_framequeues()
+ * prepare queues for incoming and outgoing frames
+ */
+static void em28xx_empty_framequeues(struct em28xx *dev)
+{
+ u32 i;
+
+ INIT_LIST_HEAD(&dev->inqueue);
+ INIT_LIST_HEAD(&dev->outqueue);
+
+ for (i = 0; i < EM28XX_NUM_FRAMES; i++) {
+ dev->frame[i].state = F_UNUSED;
+ dev->frame[i].buf.bytesused = 0;
+ }
+}
+
+static void video_mux(struct em28xx *dev, int index)
+{
+ int input, ainput;
+
+ input = INPUT(index)->vmux;
+ dev->ctl_input = index;
+ dev->ctl_ainput = INPUT(index)->amux;
+
+ em28xx_i2c_call_clients(dev, DECODER_SET_INPUT, &input);
+
+
+ em28xx_videodbg("Setting input index=%d, vmux=%d, amux=%d\n",index,input,dev->ctl_ainput);
+
+ if (dev->has_msp34xx) {
+ em28xx_i2c_call_clients(dev, VIDIOC_S_AUDIO, &dev->ctl_ainput);
+ ainput = EM28XX_AUDIO_SRC_TUNER;
+ em28xx_audio_source(dev, ainput);
+ } else {
+ switch (dev->ctl_ainput) {
+ case 0:
+ ainput = EM28XX_AUDIO_SRC_TUNER;
+ break;
+ default:
+ ainput = EM28XX_AUDIO_SRC_LINE;
+ }
+ em28xx_audio_source(dev, ainput);
+ }
+}
+
+/*
+ * em28xx_v4l2_open()
+ * inits the device and starts isoc transfer
+ */
+static int em28xx_v4l2_open(struct inode *inode, struct file *filp)
+{
+ int minor = iminor(inode);
+ int errCode = 0;
+ struct em28xx *h,*dev = NULL;
+ struct list_head *list;
+
+ list_for_each(list,&em28xx_devlist) {
+ h = list_entry(list, struct em28xx, devlist);
+ if (h->vdev->minor == minor) {
+ dev = h;
+ }
+ }
+
+ filp->private_data=dev;
+
+
+ em28xx_videodbg("users=%d\n", dev->users);
+
+ if (!down_read_trylock(&em28xx_disconnect))
+ return -ERESTARTSYS;
+
+ if (dev->users) {
+ em28xx_warn("this driver can be opened only once\n");
+ up_read(&em28xx_disconnect);
+ return -EBUSY;
+ }
+
+/* if(dev->vbi_dev->minor == minor){
+ dev->type=V4L2_BUF_TYPE_VBI_CAPTURE;
+ }*/
+ if (dev->vdev->minor == minor) {
+ dev->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ }
+
+ init_MUTEX(&dev->fileop_lock); /* to 1 == available */
+ spin_lock_init(&dev->queue_lock);
+ init_waitqueue_head(&dev->wait_frame);
+ init_waitqueue_head(&dev->wait_stream);
+
+ down(&dev->lock);
+
+ em28xx_set_alternate(dev);
+
+ dev->width = norm_maxw(dev);
+ dev->height = norm_maxh(dev);
+ dev->frame_size = dev->width * dev->height * 2;
+ dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */
+ dev->bytesperline = dev->width * 2;
+ dev->hscale = 0;
+ dev->vscale = 0;
+
+ em28xx_capture_start(dev, 1);
+ em28xx_resolution_set(dev);
+
+ /* start the transfer */
+ errCode = em28xx_init_isoc(dev);
+ if (errCode)
+ goto err;
+
+ dev->users++;
+ filp->private_data = dev;
+ dev->io = IO_NONE;
+ dev->stream = STREAM_OFF;
+ dev->num_frames = 0;
+
+ /* prepare queues */
+ em28xx_empty_framequeues(dev);
+
+ dev->state |= DEV_INITIALIZED;
+
+ video_mux(dev, 0);
+
+ err:
+ up(&dev->lock);
+ up_read(&em28xx_disconnect);
+ return errCode;
+}
+
+/*
+ * em28xx_realease_resources()
+ * unregisters the v4l2,i2c and usb devices
+ * called when the device gets disconected or at module unload
+*/
+static void em28xx_release_resources(struct em28xx *dev)
+{
+ down(&em28xx_sysfs_lock);
+
+ em28xx_info("V4L2 device /dev/video%d deregistered\n",
+ dev->vdev->minor);
+ list_del(&dev->devlist);
+ video_unregister_device(dev->vdev);
+/* video_unregister_device(dev->vbi_dev); */
+ em28xx_i2c_unregister(dev);
+ usb_put_dev(dev->udev);
+ up(&em28xx_sysfs_lock);
+}
+
+/*
+ * em28xx_v4l2_close()
+ * stops streaming and deallocates all resources allocated by the v4l2 calls and ioctls
+ */
+static int em28xx_v4l2_close(struct inode *inode, struct file *filp)
+{
+ int errCode;
+ struct em28xx *dev=filp->private_data;
+
+ em28xx_videodbg("users=%d\n", dev->users);
+
+ down(&dev->lock);
+
+ em28xx_uninit_isoc(dev);
+
+ em28xx_release_buffers(dev);
+
+ /* the device is already disconnect, free the remaining resources */
+ if (dev->state & DEV_DISCONNECTED) {
+ em28xx_release_resources(dev);
+ up(&dev->lock);
+ kfree(dev);
+ return 0;
+ }
+
+ /* set alternate 0 */
+ dev->alt = 0;
+ em28xx_videodbg("setting alternate 0\n");
+ errCode = usb_set_interface(dev->udev, 0, 0);
+ if (errCode < 0) {
+ em28xx_errdev ("cannot change alternate number to 0 (error=%i)\n",
+ errCode);
+ }
+
+ dev->users--;
+ wake_up_interruptible_nr(&dev->open, 1);
+ up(&dev->lock);
+ return 0;
+}
+
+/*
+ * em28xx_v4l2_read()
+ * will allocate buffers when called for the first time
+ */
+static ssize_t
+em28xx_v4l2_read(struct file *filp, char __user * buf, size_t count,
+ loff_t * f_pos)
+{
+ struct em28xx_frame_t *f, *i;
+ unsigned long lock_flags;
+ int ret = 0;
+ struct em28xx *dev = filp->private_data;
+
+ if (down_interruptible(&dev->fileop_lock))
+ return -ERESTARTSYS;
+
+ if (dev->state & DEV_DISCONNECTED) {
+ em28xx_videodbg("device not present\n");
+ up(&dev->fileop_lock);
+ return -ENODEV;
+ }
+
+ if (dev->state & DEV_MISCONFIGURED) {
+ em28xx_videodbg("device misconfigured; close and open it again\n");
+ up(&dev->fileop_lock);
+ return -EIO;
+ }
+
+ if (dev->io == IO_MMAP) {
+ em28xx_videodbg ("IO method is set to mmap; close and open"
+ " the device again to choose the read method\n");
+ up(&dev->fileop_lock);
+ return -EINVAL;
+ }
+
+ if (dev->io == IO_NONE) {
+ if (!em28xx_request_buffers(dev, EM28XX_NUM_READ_FRAMES)) {
+ em28xx_errdev("read failed, not enough memory\n");
+ up(&dev->fileop_lock);
+ return -ENOMEM;
+ }
+ dev->io = IO_READ;
+ dev->stream = STREAM_ON;
+ em28xx_queue_unusedframes(dev);
+ }
+
+ if (!count) {
+ up(&dev->fileop_lock);
+ return 0;
+ }
+
+ if (list_empty(&dev->outqueue)) {
+ if (filp->f_flags & O_NONBLOCK) {
+ up(&dev->fileop_lock);
+ return -EAGAIN;
+ }
+ ret = wait_event_interruptible
+ (dev->wait_frame,
+ (!list_empty(&dev->outqueue)) ||
+ (dev->state & DEV_DISCONNECTED));
+ if (ret) {
+ up(&dev->fileop_lock);
+ return ret;
+ }
+ if (dev->state & DEV_DISCONNECTED) {
+ up(&dev->fileop_lock);
+ return -ENODEV;
+ }
+ }
+
+ f = list_entry(dev->outqueue.prev, struct em28xx_frame_t, frame);
+
+ spin_lock_irqsave(&dev->queue_lock, lock_flags);
+ list_for_each_entry(i, &dev->outqueue, frame)
+ i->state = F_UNUSED;
+ INIT_LIST_HEAD(&dev->outqueue);
+ spin_unlock_irqrestore(&dev->queue_lock, lock_flags);
+
+ em28xx_queue_unusedframes(dev);
+
+ if (count > f->buf.length)
+ count = f->buf.length;
+
+ if (copy_to_user(buf, f->bufmem, count)) {
+ up(&dev->fileop_lock);
+ return -EFAULT;
+ }
+ *f_pos += count;
+
+ up(&dev->fileop_lock);
+
+ return count;
+}
+
+/*
+ * em28xx_v4l2_poll()
+ * will allocate buffers when called for the first time
+ */
+static unsigned int em28xx_v4l2_poll(struct file *filp, poll_table * wait)
+{
+ unsigned int mask = 0;
+ struct em28xx *dev = filp->private_data;
+
+ if (down_interruptible(&dev->fileop_lock))
+ return POLLERR;
+
+ if (dev->state & DEV_DISCONNECTED) {
+ em28xx_videodbg("device not present\n");
+ } else if (dev->state & DEV_MISCONFIGURED) {
+ em28xx_videodbg("device is misconfigured; close and open it again\n");
+ } else {
+ if (dev->io == IO_NONE) {
+ if (!em28xx_request_buffers
+ (dev, EM28XX_NUM_READ_FRAMES)) {
+ em28xx_warn
+ ("poll() failed, not enough memory\n");
+ } else {
+ dev->io = IO_READ;
+ dev->stream = STREAM_ON;
+ }
+ }
+
+ if (dev->io == IO_READ) {
+ em28xx_queue_unusedframes(dev);
+ poll_wait(filp, &dev->wait_frame, wait);
+
+ if (!list_empty(&dev->outqueue))
+ mask |= POLLIN | POLLRDNORM;
+
+ up(&dev->fileop_lock);
+
+ return mask;
+ }
+ }
+
+ up(&dev->fileop_lock);
+ return POLLERR;
+}
+
+/*
+ * em28xx_vm_open()
+ */
+static void em28xx_vm_open(struct vm_area_struct *vma)
+{
+ struct em28xx_frame_t *f = vma->vm_private_data;
+ f->vma_use_count++;
+}
+
+/*
+ * em28xx_vm_close()
+ */
+static void em28xx_vm_close(struct vm_area_struct *vma)
+{
+ /* NOTE: buffers are not freed here */
+ struct em28xx_frame_t *f = vma->vm_private_data;
+ f->vma_use_count--;
+}
+
+static struct vm_operations_struct em28xx_vm_ops = {
+ .open = em28xx_vm_open,
+ .close = em28xx_vm_close,
+};
+
+/*
+ * em28xx_v4l2_mmap()
+ */
+static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ unsigned long size = vma->vm_end - vma->vm_start,
+ start = vma->vm_start, pos, page;
+ u32 i;
+
+ struct em28xx *dev = filp->private_data;
+
+ if (down_interruptible(&dev->fileop_lock))
+ return -ERESTARTSYS;
+
+ if (dev->state & DEV_DISCONNECTED) {
+ em28xx_videodbg("mmap: device not present\n");
+ up(&dev->fileop_lock);
+ return -ENODEV;
+ }
+
+ if (dev->state & DEV_MISCONFIGURED) {
+ em28xx_videodbg ("mmap: Device is misconfigured; close and "
+ "open it again\n");
+ up(&dev->fileop_lock);
+ return -EIO;
+ }
+
+ if (dev->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) ||
+ size != PAGE_ALIGN(dev->frame[0].buf.length)) {
+ up(&dev->fileop_lock);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < dev->num_frames; i++) {
+ if ((dev->frame[i].buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff)
+ break;
+ }
+ if (i == dev->num_frames) {
+ em28xx_videodbg("mmap: user supplied mapping address is out of range\n");
+ up(&dev->fileop_lock);
+ return -EINVAL;
+ }
+
+ /* VM_IO is eventually going to replace PageReserved altogether */
+ vma->vm_flags |= VM_IO;
+ vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
+
+ pos = (unsigned long)dev->frame[i].bufmem;
+ while (size > 0) { /* size is page-aligned */
+ page = vmalloc_to_pfn((void *)pos);
+ if (remap_pfn_range(vma, start, page, PAGE_SIZE,
+ vma->vm_page_prot)) {
+ em28xx_videodbg("mmap: rename page map failed\n");
+ up(&dev->fileop_lock);
+ return -EAGAIN;
+ }
+ start += PAGE_SIZE;
+ pos += PAGE_SIZE;
+ size -= PAGE_SIZE;
+ }
+
+ vma->vm_ops = &em28xx_vm_ops;
+ vma->vm_private_data = &dev->frame[i];
+
+ em28xx_vm_open(vma);
+ up(&dev->fileop_lock);
+ return 0;
+}
+
+/*
+ * em28xx_get_ctrl()
+ * return the current saturation, brightness or contrast, mute state
+ */
+static int em28xx_get_ctrl(struct em28xx *dev, struct v4l2_control *ctrl)
+{
+ s32 tmp;
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ ctrl->value = dev->mute;
+ return 0;
+ case V4L2_CID_AUDIO_VOLUME:
+ ctrl->value = dev->volume;
+ return 0;
+ case V4L2_CID_BRIGHTNESS:
+ if ((tmp = em28xx_brightness_get(dev)) < 0)
+ return -EIO;
+ ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */
+ return 0;
+ case V4L2_CID_CONTRAST:
+ if ((ctrl->value = em28xx_contrast_get(dev)) < 0)
+ return -EIO;
+ return 0;
+ case V4L2_CID_SATURATION:
+ if ((ctrl->value = em28xx_saturation_get(dev)) < 0)
+ return -EIO;
+ return 0;
+ case V4L2_CID_RED_BALANCE:
+ if ((tmp = em28xx_v_balance_get(dev)) < 0)
+ return -EIO;
+ ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */
+ return 0;
+ case V4L2_CID_BLUE_BALANCE:
+ if ((tmp = em28xx_u_balance_get(dev)) < 0)
+ return -EIO;
+ ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */
+ return 0;
+ case V4L2_CID_GAMMA:
+ if ((ctrl->value = em28xx_gamma_get(dev)) < 0)
+ return -EIO;
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+/*
+ * em28xx_set_ctrl()
+ * mute or set new saturation, brightness or contrast
+ */
+static int em28xx_set_ctrl(struct em28xx *dev, const struct v4l2_control *ctrl)
+{
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ if (ctrl->value != dev->mute) {
+ dev->mute = ctrl->value;
+ em28xx_audio_usb_mute(dev, ctrl->value);
+ return em28xx_audio_analog_set(dev);
+ }
+ return 0;
+ case V4L2_CID_AUDIO_VOLUME:
+ dev->volume = ctrl->value;
+ return em28xx_audio_analog_set(dev);
+ case V4L2_CID_BRIGHTNESS:
+ return em28xx_brightness_set(dev, ctrl->value);
+ case V4L2_CID_CONTRAST:
+ return em28xx_contrast_set(dev, ctrl->value);
+ case V4L2_CID_SATURATION:
+ return em28xx_saturation_set(dev, ctrl->value);
+ case V4L2_CID_RED_BALANCE:
+ return em28xx_v_balance_set(dev, ctrl->value);
+ case V4L2_CID_BLUE_BALANCE:
+ return em28xx_u_balance_set(dev, ctrl->value);
+ case V4L2_CID_GAMMA:
+ return em28xx_gamma_set(dev, ctrl->value);
+ default:
+ return -EINVAL;
+ }
+}
+
+/*
+ * em28xx_stream_interrupt()
+ * stops streaming
+ */
+static int em28xx_stream_interrupt(struct em28xx *dev)
+{
+ int ret = 0;
+
+ /* stop reading from the device */
+
+ dev->stream = STREAM_INTERRUPT;
+ ret = wait_event_timeout(dev->wait_stream,
+ (dev->stream == STREAM_OFF) ||
+ (dev->state & DEV_DISCONNECTED),
+ EM28XX_URB_TIMEOUT);
+ if (dev->state & DEV_DISCONNECTED)
+ return -ENODEV;
+ else if (ret) {
+ dev->state |= DEV_MISCONFIGURED;
+ em28xx_videodbg("device is misconfigured; close and "
+ "open /dev/video%d again\n", dev->vdev->minor);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int em28xx_set_norm(struct em28xx *dev, int width, int height)
+{
+ unsigned int hscale, vscale;
+ unsigned int maxh, maxw;
+
+ maxw = norm_maxw(dev);
+ maxh = norm_maxh(dev);
+
+ /* width must even because of the YUYV format */
+ /* height must be even because of interlacing */
+ height &= 0xfffe;
+ width &= 0xfffe;
+
+ if (height < 32)
+ height = 32;
+ if (height > maxh)
+ height = maxh;
+ if (width < 48)
+ width = 48;
+ if (width > maxw)
+ width = maxw;
+
+ if ((hscale = (((unsigned long)maxw) << 12) / width - 4096L) >= 0x4000)
+ hscale = 0x3fff;
+ width = (((unsigned long)maxw) << 12) / (hscale + 4096L);
+
+ if ((vscale = (((unsigned long)maxh) << 12) / height - 4096L) >= 0x4000)
+ vscale = 0x3fff;
+ height = (((unsigned long)maxh) << 12) / (vscale + 4096L);
+
+ /* set new image size */
+ dev->width = width;
+ dev->height = height;
+ dev->frame_size = dev->width * dev->height * 2;
+ dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */
+ dev->bytesperline = dev->width * 2;
+ dev->hscale = hscale;
+ dev->vscale = vscale;
+
+ em28xx_resolution_set(dev);
+
+ return 0;
+}
+
+/*
+ * em28xx_v4l2_do_ioctl()
+ * This function is _not_ called directly, but from
+ * em28xx_v4l2_ioctl. Userspace
+ * copying is done already, arg is a kernel pointer.
+ */
+static int em28xx_do_ioctl(struct inode *inode, struct file *filp,
+ struct em28xx *dev, unsigned int cmd, void *arg,
+ v4l2_kioctl driver_ioctl)
+{
+ int ret;
+
+ switch (cmd) {
+ /* ---------- tv norms ---------- */
+ case VIDIOC_ENUMSTD:
+ {
+ struct v4l2_standard *e = arg;
+ unsigned int i;
+
+ i = e->index;
+ if (i >= TVNORMS)
+ return -EINVAL;
+ ret = v4l2_video_std_construct(e, tvnorms[e->index].id,
+ tvnorms[e->index].name);
+ e->index = i;
+ if (ret < 0)
+ return ret;
+ return 0;
+ }
+ case VIDIOC_G_STD:
+ {
+ v4l2_std_id *id = arg;
+
+ *id = dev->tvnorm->id;
+ return 0;
+ }
+ case VIDIOC_S_STD:
+ {
+ v4l2_std_id *id = arg;
+ unsigned int i;
+
+ for (i = 0; i < TVNORMS; i++)
+ if (*id == tvnorms[i].id)
+ break;
+ if (i == TVNORMS)
+ for (i = 0; i < TVNORMS; i++)
+ if (*id & tvnorms[i].id)
+ break;
+ if (i == TVNORMS)
+ return -EINVAL;
+
+ down(&dev->lock);
+ dev->tvnorm = &tvnorms[i];
+
+ em28xx_set_norm(dev, dev->width, dev->height);
+
+/*
+ dev->width=norm_maxw(dev);
+ dev->height=norm_maxh(dev);
+ dev->frame_size=dev->width*dev->height*2;
+ dev->field_size=dev->frame_size>>1;
+ dev->bytesperline=dev->width*2;
+ dev->hscale=0;
+ dev->vscale=0;
+
+ em28xx_resolution_set(dev);
+*/
+/*
+ em28xx_uninit_isoc(dev);
+ em28xx_set_alternate(dev);
+ em28xx_capture_start(dev, 1);
+ em28xx_resolution_set(dev);
+ em28xx_init_isoc(dev);
+*/
+ em28xx_i2c_call_clients(dev, DECODER_SET_NORM,
+ &tvnorms[i].mode);
+ em28xx_i2c_call_clients(dev, VIDIOC_S_STD,
+ &dev->tvnorm->id);
+
+ up(&dev->lock);
+
+ return 0;
+ }
+
+ /* ------ input switching ---------- */
+ case VIDIOC_ENUMINPUT:
+ {
+ struct v4l2_input *i = arg;
+ unsigned int n;
+ static const char *iname[] = {
+ [EM28XX_VMUX_COMPOSITE1] = "Composite1",
+ [EM28XX_VMUX_COMPOSITE2] = "Composite2",
+ [EM28XX_VMUX_COMPOSITE3] = "Composite3",
+ [EM28XX_VMUX_COMPOSITE4] = "Composite4",
+ [EM28XX_VMUX_SVIDEO] = "S-Video",
+ [EM28XX_VMUX_TELEVISION] = "Television",
+ [EM28XX_VMUX_CABLE] = "Cable TV",
+ [EM28XX_VMUX_DVB] = "DVB",
+ [EM28XX_VMUX_DEBUG] = "for debug only",
+ };
+
+ n = i->index;
+ if (n >= MAX_EM28XX_INPUT)
+ return -EINVAL;
+ if (0 == INPUT(n)->type)
+ return -EINVAL;
+ memset(i, 0, sizeof(*i));
+ i->index = n;
+ i->type = V4L2_INPUT_TYPE_CAMERA;
+ strcpy(i->name, iname[INPUT(n)->type]);
+ if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) ||
+ (EM28XX_VMUX_CABLE == INPUT(n)->type))
+ i->type = V4L2_INPUT_TYPE_TUNER;
+ for (n = 0; n < ARRAY_SIZE(tvnorms); n++)
+ i->std |= tvnorms[n].id;
+ return 0;
+ }
+
+ case VIDIOC_G_INPUT:
+ {
+ int *i = arg;
+ *i = dev->ctl_input;
+
+ return 0;
+ }
+
+ case VIDIOC_S_INPUT:
+ {
+ int *index = arg;
+
+ if (*index >= MAX_EM28XX_INPUT)
+ return -EINVAL;
+ if (0 == INPUT(*index)->type)
+ return -EINVAL;
+
+ down(&dev->lock);
+ video_mux(dev, *index);
+ up(&dev->lock);
+
+ return 0;
+ }
+
+ case VIDIOC_G_AUDIO:
+ {
+ struct v4l2_audio *a = arg;
+ unsigned int index = a->index;
+
+ if (a->index > 1)
+ return -EINVAL;
+ memset(a, 0, sizeof(*a));
+ index = dev->ctl_ainput;
+
+ if (index == 0) {
+ strcpy(a->name, "Television");
+ } else {
+ strcpy(a->name, "Line In");
+ }
+ a->capability = V4L2_AUDCAP_STEREO;
+ a->index = index;
+ return 0;
+ }
+
+ case VIDIOC_S_AUDIO:
+ {
+ struct v4l2_audio *a = arg;
+ if (a->index != dev->ctl_ainput)
+ return -EINVAL;
+
+ return 0;
+ }
+
+ /* --- controls ---------------------------------------------- */
+ case VIDIOC_QUERYCTRL:
+ {
+ struct v4l2_queryctrl *qc = arg;
+ u8 i, n;
+ n = sizeof(em28xx_qctrl) / sizeof(em28xx_qctrl[0]);
+ for (i = 0; i < n; i++)
+ if (qc->id && qc->id == em28xx_qctrl[i].id) {
+ memcpy(qc, &(em28xx_qctrl[i]),
+ sizeof(*qc));
+ return 0;
+ }
+
+ return -EINVAL;
+ }
+
+ case VIDIOC_G_CTRL:
+ {
+ struct v4l2_control *ctrl = arg;
+
+
+ return em28xx_get_ctrl(dev, ctrl);
+ }
+
+ case VIDIOC_S_CTRL_OLD: /* ??? */
+ case VIDIOC_S_CTRL:
+ {
+ struct v4l2_control *ctrl = arg;
+ u8 i, n;
+
+
+ n = sizeof(em28xx_qctrl) / sizeof(em28xx_qctrl[0]);
+ for (i = 0; i < n; i++)
+ if (ctrl->id == em28xx_qctrl[i].id) {
+ if (ctrl->value <
+ em28xx_qctrl[i].minimum
+ || ctrl->value >
+ em28xx_qctrl[i].maximum)
+ return -ERANGE;
+
+ return em28xx_set_ctrl(dev, ctrl);
+ }
+ return -EINVAL;
+ }
+
+ /* --- tuner ioctls ------------------------------------------ */
+ case VIDIOC_G_TUNER:
+ {
+ struct v4l2_tuner *t = arg;
+ int status = 0;
+
+ if (0 != t->index)
+ return -EINVAL;
+
+ memset(t, 0, sizeof(*t));
+ strcpy(t->name, "Tuner");
+ t->type = V4L2_TUNER_ANALOG_TV;
+ t->capability = V4L2_TUNER_CAP_NORM;
+ t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */
+/* t->signal = 0xffff;*/
+/* em28xx_i2c_call_clients(dev,VIDIOC_G_TUNER,t);*/
+ /* No way to get signal strength? */
+ down(&dev->lock);
+ em28xx_i2c_call_clients(dev, DECODER_GET_STATUS,
+ &status);
+ up(&dev->lock);
+ t->signal =
+ (status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0;
+
+ em28xx_videodbg("VIDIO_G_TUNER: signal=%x, afc=%x\n", t->signal,
+ t->afc);
+ return 0;
+ }
+ case VIDIOC_S_TUNER:
+ {
+ struct v4l2_tuner *t = arg;
+ int status = 0;
+
+ if (0 != t->index)
+ return -EINVAL;
+ memset(t, 0, sizeof(*t));
+ strcpy(t->name, "Tuner");
+ t->type = V4L2_TUNER_ANALOG_TV;
+ t->capability = V4L2_TUNER_CAP_NORM;
+ t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */
+/* t->signal = 0xffff; */
+ /* No way to get signal strength? */
+ down(&dev->lock);
+ em28xx_i2c_call_clients(dev, DECODER_GET_STATUS,
+ &status);
+ up(&dev->lock);
+ t->signal =
+ (status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0;
+
+ em28xx_videodbg("VIDIO_S_TUNER: signal=%x, afc=%x\n",
+ t->signal, t->afc);
+ return 0;
+ }
+ case VIDIOC_G_FREQUENCY:
+ {
+ struct v4l2_frequency *f = arg;
+
+ memset(f, 0, sizeof(*f));
+ f->type = V4L2_TUNER_ANALOG_TV;
+ f->frequency = dev->ctl_freq;
+
+ return 0;
+ }
+ case VIDIOC_S_FREQUENCY:
+ {
+ struct v4l2_frequency *f = arg;
+
+ if (0 != f->tuner)
+ return -EINVAL;
+
+ if (V4L2_TUNER_ANALOG_TV != f->type)
+ return -EINVAL;
+
+ down(&dev->lock);
+ dev->ctl_freq = f->frequency;
+ em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, f);
+ up(&dev->lock);
+ return 0;
+ }
+
+ case VIDIOC_CROPCAP:
+ {
+ struct v4l2_cropcap *cc = arg;
+
+ if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+ cc->bounds.left = 0;
+ cc->bounds.top = 0;
+ cc->bounds.width = dev->width;
+ cc->bounds.height = dev->height;
+ cc->defrect = cc->bounds;
+ cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
+ cc->pixelaspect.denominator = 59;
+ return 0;
+ }
+ case VIDIOC_STREAMON:
+ {
+ int *type = arg;
+
+ if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE
+ || dev->io != IO_MMAP)
+ return -EINVAL;
+
+ if (list_empty(&dev->inqueue))
+ return -EINVAL;
+
+ dev->stream = STREAM_ON; /* FIXME: Start video capture here? */
+
+ em28xx_videodbg("VIDIOC_STREAMON: starting stream\n");
+
+ return 0;
+ }
+ case VIDIOC_STREAMOFF:
+ {
+ int *type = arg;
+ int ret;
+
+ if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE
+ || dev->io != IO_MMAP)
+ return -EINVAL;
+
+ if (dev->stream == STREAM_ON) {
+ em28xx_videodbg ("VIDIOC_STREAMOFF: interrupting stream\n");
+ if ((ret = em28xx_stream_interrupt(dev)))
+ return ret;
+ }
+ em28xx_empty_framequeues(dev);
+
+ return 0;
+ }
+ default:
+ return v4l_compat_translate_ioctl(inode, filp, cmd, arg,
+ driver_ioctl);
+ }
+ return 0;
+}
+
+/*
+ * em28xx_v4l2_do_ioctl()
+ * This function is _not_ called directly, but from
+ * em28xx_v4l2_ioctl. Userspace
+ * copying is done already, arg is a kernel pointer.
+ */
+static int em28xx_video_do_ioctl(struct inode *inode, struct file *filp,
+ unsigned int cmd, void *arg)
+{
+ struct em28xx *dev = filp->private_data;
+
+ if (!dev)
+ return -ENODEV;
+
+ if (video_debug > 1)
+ em28xx_print_ioctl(dev->name,cmd);
+
+ switch (cmd) {
+
+ /* --- capabilities ------------------------------------------ */
+ case VIDIOC_QUERYCAP:
+ {
+ struct v4l2_capability *cap = arg;
+
+ memset(cap, 0, sizeof(*cap));
+ strlcpy(cap->driver, "em28xx", sizeof(cap->driver));
+ strlcpy(cap->card, em28xx_boards[dev->model].name,
+ sizeof(cap->card));
+ strlcpy(cap->bus_info, dev->udev->dev.bus_id,
+ sizeof(cap->bus_info));
+ cap->version = EM28XX_VERSION_CODE;
+ cap->capabilities =
+ V4L2_CAP_VIDEO_CAPTURE |
+ V4L2_CAP_AUDIO |
+ V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
+ if (dev->has_tuner)
+ cap->capabilities |= V4L2_CAP_TUNER;
+ return 0;
+ }
+
+ /* --- capture ioctls ---------------------------------------- */
+ case VIDIOC_ENUM_FMT:
+ {
+ struct v4l2_fmtdesc *fmtd = arg;
+
+ if (fmtd->index != 0)
+ return -EINVAL;
+ memset(fmtd, 0, sizeof(*fmtd));
+ fmtd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ strcpy(fmtd->description, "Packed YUY2");
+ fmtd->pixelformat = V4L2_PIX_FMT_YUYV;
+ memset(fmtd->reserved, 0, sizeof(fmtd->reserved));
+ return 0;
+ }
+
+ case VIDIOC_G_FMT:
+ {
+ struct v4l2_format *format = arg;
+
+ em28xx_videodbg("VIDIOC_G_FMT: type=%s\n",
+ format->type ==
+ V4L2_BUF_TYPE_VIDEO_CAPTURE ?
+ "V4L2_BUF_TYPE_VIDEO_CAPTURE" : format->type ==
+ V4L2_BUF_TYPE_VBI_CAPTURE ?
+ "V4L2_BUF_TYPE_VBI_CAPTURE " :
+ "not supported");
+
+ if (format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ format->fmt.pix.width = dev->width;
+ format->fmt.pix.height = dev->height;
+ format->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV;
+ format->fmt.pix.bytesperline = dev->bytesperline;
+ format->fmt.pix.sizeimage = dev->frame_size;
+ format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+ format->fmt.pix.field = dev->interlaced ? V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; /* FIXME: TOP? NONE? BOTTOM? ALTENATE? */
+
+ em28xx_videodbg("VIDIOC_G_FMT: %dx%d\n", dev->width,
+ dev->height);
+ return 0;
+ }
+
+ case VIDIOC_TRY_FMT:
+ case VIDIOC_S_FMT:
+ {
+ struct v4l2_format *format = arg;
+ u32 i;
+ int ret = 0;
+ int width = format->fmt.pix.width;
+ int height = format->fmt.pix.height;
+ unsigned int hscale, vscale;
+ unsigned int maxh, maxw;
+
+ maxw = norm_maxw(dev);
+ maxh = norm_maxh(dev);
+
+/* int both_fields; */
+
+ em28xx_videodbg("%s: type=%s\n",
+ cmd ==
+ VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" :
+ "VIDIOC_S_FMT",
+ format->type ==
+ V4L2_BUF_TYPE_VIDEO_CAPTURE ?
+ "V4L2_BUF_TYPE_VIDEO_CAPTURE" : format->type ==
+ V4L2_BUF_TYPE_VBI_CAPTURE ?
+ "V4L2_BUF_TYPE_VBI_CAPTURE " :
+ "not supported");
+
+ if (format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ em28xx_videodbg("%s: requested %dx%d\n",
+ cmd ==
+ VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" :
+ "VIDIOC_S_FMT", format->fmt.pix.width,
+ format->fmt.pix.height);
+
+ /* FIXME: Move some code away from here */
+ /* width must even because of the YUYV format */
+ /* height must be even because of interlacing */
+ height &= 0xfffe;
+ width &= 0xfffe;
+
+ if (height < 32)
+ height = 32;
+ if (height > maxh)
+ height = maxh;
+ if (width < 48)
+ width = 48;
+ if (width > maxw)
+ width = maxw;
+
+ if(dev->is_em2800){
+ /* the em2800 can only scale down to 50% */
+ if(height % (maxh / 2))
+ height=maxh;
+ if(width % (maxw / 2))
+ width=maxw;
+ /* according to empiatech support */
+ /* the MaxPacketSize is to small to support */
+ /* framesizes larger than 640x480 @ 30 fps */
+ /* or 640x576 @ 25 fps. As this would cut */
+ /* of a part of the image we prefer */
+ /* 360x576 or 360x480 for now */
+ if(width == maxw && height == maxh)
+ width /= 2;
+ }
+
+ if ((hscale =
+ (((unsigned long)maxw) << 12) / width - 4096L) >=
+ 0x4000)
+ hscale = 0x3fff;
+ width =
+ (((unsigned long)maxw) << 12) / (hscale + 4096L);
+
+ if ((vscale =
+ (((unsigned long)maxh) << 12) / height - 4096L) >=
+ 0x4000)
+ vscale = 0x3fff;
+ height =
+ (((unsigned long)maxh) << 12) / (vscale + 4096L);
+
+ format->fmt.pix.width = width;
+ format->fmt.pix.height = height;
+ format->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV;
+ format->fmt.pix.bytesperline = width * 2;
+ format->fmt.pix.sizeimage = width * 2 * height;
+ format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+ format->fmt.pix.field = V4L2_FIELD_INTERLACED;
+
+ em28xx_videodbg("%s: returned %dx%d (%d, %d)\n",
+ cmd ==
+ VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" :
+ "VIDIOC_S_FMT", format->fmt.pix.width,
+ format->fmt.pix.height, hscale, vscale);
+
+ if (cmd == VIDIOC_TRY_FMT)
+ return 0;
+
+ for (i = 0; i < dev->num_frames; i++)
+ if (dev->frame[i].vma_use_count) {
+ em28xx_videodbg("VIDIOC_S_FMT failed. "
+ "Unmap the buffers first.\n");
+ return -EINVAL;
+ }
+
+ /* stop io in case it is already in progress */
+ if (dev->stream == STREAM_ON) {
+ em28xx_videodbg("VIDIOC_SET_FMT: interupting stream\n");
+ if ((ret = em28xx_stream_interrupt(dev)))
+ return ret;
+ }
+
+ em28xx_release_buffers(dev);
+ dev->io = IO_NONE;
+
+ /* set new image size */
+ dev->width = width;
+ dev->height = height;
+ dev->frame_size = dev->width * dev->height * 2;
+ dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */
+ dev->bytesperline = dev->width * 2;
+ dev->hscale = hscale;
+ dev->vscale = vscale;
+/* dev->both_fileds = both_fileds; */
+ em28xx_uninit_isoc(dev);
+ em28xx_set_alternate(dev);
+ em28xx_capture_start(dev, 1);
+ em28xx_resolution_set(dev);
+ em28xx_init_isoc(dev);
+
+ return 0;
+ }
+
+ /* --- streaming capture ------------------------------------- */
+ case VIDIOC_REQBUFS:
+ {
+ struct v4l2_requestbuffers *rb = arg;
+ u32 i;
+ int ret;
+
+ if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ rb->memory != V4L2_MEMORY_MMAP)
+ return -EINVAL;
+
+ if (dev->io == IO_READ) {
+ em28xx_videodbg ("method is set to read;"
+ " close and open the device again to"
+ " choose the mmap I/O method\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < dev->num_frames; i++)
+ if (dev->frame[i].vma_use_count) {
+ em28xx_videodbg ("VIDIOC_REQBUFS failed; previous buffers are still mapped\n");
+ return -EINVAL;
+ }
+
+ if (dev->stream == STREAM_ON) {
+ em28xx_videodbg("VIDIOC_REQBUFS: interrupting stream\n");
+ if ((ret = em28xx_stream_interrupt(dev)))
+ return ret;
+ }
+
+ em28xx_empty_framequeues(dev);
+
+ em28xx_release_buffers(dev);
+ if (rb->count)
+ rb->count =
+ em28xx_request_buffers(dev, rb->count);
+
+ dev->frame_current = NULL;
+
+ em28xx_videodbg ("VIDIOC_REQBUFS: setting io method to mmap: num bufs %i\n",
+ rb->count);
+ dev->io = rb->count ? IO_MMAP : IO_NONE;
+ return 0;
+ }
+
+ case VIDIOC_QUERYBUF:
+ {
+ struct v4l2_buffer *b = arg;
+
+ if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ b->index >= dev->num_frames || dev->io != IO_MMAP)
+ return -EINVAL;
+
+ memcpy(b, &dev->frame[b->index].buf, sizeof(*b));
+
+ if (dev->frame[b->index].vma_use_count) {
+ b->flags |= V4L2_BUF_FLAG_MAPPED;
+ }
+ if (dev->frame[b->index].state == F_DONE)
+ b->flags |= V4L2_BUF_FLAG_DONE;
+ else if (dev->frame[b->index].state != F_UNUSED)
+ b->flags |= V4L2_BUF_FLAG_QUEUED;
+ return 0;
+ }
+ case VIDIOC_QBUF:
+ {
+ struct v4l2_buffer *b = arg;
+ unsigned long lock_flags;
+
+ if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ b->index >= dev->num_frames || dev->io != IO_MMAP) {
+ return -EINVAL;
+ }
+
+ if (dev->frame[b->index].state != F_UNUSED) {
+ return -EAGAIN;
+ }
+ dev->frame[b->index].state = F_QUEUED;
+
+ /* add frame to fifo */
+ spin_lock_irqsave(&dev->queue_lock, lock_flags);
+ list_add_tail(&dev->frame[b->index].frame,
+ &dev->inqueue);
+ spin_unlock_irqrestore(&dev->queue_lock, lock_flags);
+
+ return 0;
+ }
+ case VIDIOC_DQBUF:
+ {
+ struct v4l2_buffer *b = arg;
+ struct em28xx_frame_t *f;
+ unsigned long lock_flags;
+ int ret = 0;
+
+ if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE
+ || dev->io != IO_MMAP)
+ return -EINVAL;
+
+ if (list_empty(&dev->outqueue)) {
+ if (dev->stream == STREAM_OFF)
+ return -EINVAL;
+ if (filp->f_flags & O_NONBLOCK)
+ return -EAGAIN;
+ ret = wait_event_interruptible
+ (dev->wait_frame,
+ (!list_empty(&dev->outqueue)) ||
+ (dev->state & DEV_DISCONNECTED));
+ if (ret)
+ return ret;
+ if (dev->state & DEV_DISCONNECTED)
+ return -ENODEV;
+ }
+
+ spin_lock_irqsave(&dev->queue_lock, lock_flags);
+ f = list_entry(dev->outqueue.next,
+ struct em28xx_frame_t, frame);
+ list_del(dev->outqueue.next);
+ spin_unlock_irqrestore(&dev->queue_lock, lock_flags);
+
+ f->state = F_UNUSED;
+ memcpy(b, &f->buf, sizeof(*b));
+
+ if (f->vma_use_count)
+ b->flags |= V4L2_BUF_FLAG_MAPPED;
+
+ return 0;
+ }
+ default:
+ return em28xx_do_ioctl(inode, filp, dev, cmd, arg,
+ em28xx_video_do_ioctl);
+ }
+ return 0;
+}
+
+/*
+ * em28xx_v4l2_ioctl()
+ * handle v4l2 ioctl the main action happens in em28xx_v4l2_do_ioctl()
+ */
+static int em28xx_v4l2_ioctl(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ int ret = 0;
+ struct em28xx *dev = filp->private_data;
+
+ if (down_interruptible(&dev->fileop_lock))
+ return -ERESTARTSYS;
+
+ if (dev->state & DEV_DISCONNECTED) {
+ em28xx_errdev("v4l2 ioctl: device not present\n");
+ up(&dev->fileop_lock);
+ return -ENODEV;
+ }
+
+ if (dev->state & DEV_MISCONFIGURED) {
+ em28xx_errdev
+ ("v4l2 ioctl: device is misconfigured; close and open it again\n");
+ up(&dev->fileop_lock);
+ return -EIO;
+ }
+
+ ret = video_usercopy(inode, filp, cmd, arg, em28xx_video_do_ioctl);
+
+ up(&dev->fileop_lock);
+
+ return ret;
+}
+
+static struct file_operations em28xx_v4l_fops = {
+ .owner = THIS_MODULE,
+ .open = em28xx_v4l2_open,
+ .release = em28xx_v4l2_close,
+ .ioctl = em28xx_v4l2_ioctl,
+ .read = em28xx_v4l2_read,
+ .poll = em28xx_v4l2_poll,
+ .mmap = em28xx_v4l2_mmap,
+ .llseek = no_llseek,
+};
+
+/******************************** usb interface *****************************************/
+
+/*
+ * em28xx_init_dev()
+ * allocates and inits the device structs, registers i2c bus and v4l device
+ */
+static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
+ int minor, int model)
+{
+ struct em28xx *dev = *devhandle;
+ int retval = -ENOMEM;
+ int errCode, i;
+ unsigned int maxh, maxw;
+
+ dev->udev = udev;
+ dev->model = model;
+ init_MUTEX(&dev->lock);
+ init_waitqueue_head(&dev->open);
+
+ dev->em28xx_write_regs = em28xx_write_regs;
+ dev->em28xx_read_reg = em28xx_read_reg;
+ dev->em28xx_read_reg_req_len = em28xx_read_reg_req_len;
+ dev->em28xx_write_regs_req = em28xx_write_regs_req;
+ dev->em28xx_read_reg_req = em28xx_read_reg_req;
+ dev->is_em2800 = em28xx_boards[model].is_em2800;
+ dev->has_tuner = em28xx_boards[model].has_tuner;
+ dev->has_msp34xx = em28xx_boards[model].has_msp34xx;
+ dev->tda9887_conf = em28xx_boards[model].tda9887_conf;
+ dev->decoder = em28xx_boards[model].decoder;
+
+ if (tuner >= 0)
+ dev->tuner_type = tuner;
+ else
+ dev->tuner_type = em28xx_boards[model].tuner_type;
+
+ dev->video_inputs = em28xx_boards[model].vchannels;
+
+ for (i = 0; i < TVNORMS; i++)
+ if (em28xx_boards[model].norm == tvnorms[i].mode)
+ break;
+ if (i == TVNORMS)
+ i = 0;
+
+ dev->tvnorm = &tvnorms[i]; /* set default norm */
+
+ em28xx_videodbg("tvnorm=%s\n", dev->tvnorm->name);
+
+ maxw = norm_maxw(dev);
+ maxh = norm_maxh(dev);
+
+ /* set default image size */
+ dev->width = maxw;
+ dev->height = maxh;
+ dev->interlaced = EM28XX_INTERLACED_DEFAULT;
+ dev->field_size = dev->width * dev->height;
+ dev->frame_size =
+ dev->interlaced ? dev->field_size << 1 : dev->field_size;
+ dev->bytesperline = dev->width * 2;
+ dev->hscale = 0;
+ dev->vscale = 0;
+ dev->ctl_input = 2;
+
+ /* setup video picture settings for saa7113h */
+ memset(&dev->vpic, 0, sizeof(dev->vpic));
+ dev->vpic.colour = 128 << 8;
+ dev->vpic.hue = 128 << 8;
+ dev->vpic.brightness = 128 << 8;
+ dev->vpic.contrast = 192 << 8;
+ dev->vpic.whiteness = 128 << 8; /* This one isn't used */
+ dev->vpic.depth = 16;
+ dev->vpic.palette = VIDEO_PALETTE_YUV422;
+
+#ifdef CONFIG_MODULES
+ /* request some modules */
+ if (dev->decoder == EM28XX_SAA7113 || dev->decoder == EM28XX_SAA7114)
+ request_module("saa711x");
+ if (dev->decoder == EM28XX_TVP5150)
+ request_module("tvp5150");
+ if (dev->has_tuner)
+ request_module("tuner");
+ if (dev->tda9887_conf)
+ request_module("tda9887");
+#endif
+ errCode = em28xx_config(dev);
+ if (errCode) {
+ em28xx_errdev("error configuring device\n");
+ kfree(dev);
+ return -ENOMEM;
+ }
+
+ down(&dev->lock);
+ /* register i2c bus */
+ em28xx_i2c_register(dev);
+
+ /* Do board specific init and eeprom reading */
+ em28xx_card_setup(dev);
+
+ /* configure the device */
+ em28xx_config_i2c(dev);
+
+ up(&dev->lock);
+
+ errCode = em28xx_config(dev);
+
+#ifdef CONFIG_MODULES
+ if (dev->has_msp34xx)
+ request_module("msp3400");
+#endif
+ /* allocate and fill v4l2 device struct */
+ dev->vdev = video_device_alloc();
+ if (NULL == dev->vdev) {
+ em28xx_errdev("cannot allocate video_device.\n");
+ kfree(dev);
+ return -ENOMEM;
+ }
+
+ dev->vdev->type = VID_TYPE_CAPTURE;
+ if (dev->has_tuner)
+ dev->vdev->type |= VID_TYPE_TUNER;
+ dev->vdev->hardware = 0;
+ dev->vdev->fops = &em28xx_v4l_fops;
+ dev->vdev->minor = -1;
+ dev->vdev->dev = &dev->udev->dev;
+ dev->vdev->release = video_device_release;
+ snprintf(dev->vdev->name, sizeof(dev->vdev->name), "%s",
+ "em28xx video");
+ list_add_tail(&dev->devlist,&em28xx_devlist);
+
+ /* register v4l2 device */
+ down(&dev->lock);
+ if ((retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, -1))) {
+ em28xx_errdev("unable to register video device (error=%i).\n",
+ retval);
+ up(&dev->lock);
+ list_del(&dev->devlist);
+ video_device_release(dev->vdev);
+ kfree(dev);
+ return -ENODEV;
+ }
+ if (dev->has_msp34xx) {
+ /* Send a reset to other chips via gpio */
+ em28xx_write_regs_req(dev, 0x00, 0x08, "\xf7", 1);
+ udelay(2500);
+ em28xx_write_regs_req(dev, 0x00, 0x08, "\xff", 1);
+ udelay(2500);
+
+ }
+ video_mux(dev, 0);
+
+ up(&dev->lock);
+
+ em28xx_info("V4L2 device registered as /dev/video%d\n",
+ dev->vdev->minor);
+
+ return 0;
+}
+
+/*
+ * em28xx_usb_probe()
+ * checks for supported devices
+ */
+static int em28xx_usb_probe(struct usb_interface *interface,
+ const struct usb_device_id *id)
+{
+ const struct usb_endpoint_descriptor *endpoint;
+ struct usb_device *udev;
+ struct usb_interface *uif;
+ struct em28xx *dev = NULL;
+ int retval = -ENODEV;
+ int model,i,nr,ifnum;
+
+ udev = usb_get_dev(interface_to_usbdev(interface));
+ ifnum = interface->altsetting[0].desc.bInterfaceNumber;
+
+
+ /* Don't register audio interfaces */
+ if (interface->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) {
+ em28xx_err(DRIVER_NAME " audio device (%04x:%04x): interface %i, class %i\n",
+ udev->descriptor.idVendor,udev->descriptor.idProduct,
+ ifnum,
+ interface->altsetting[0].desc.bInterfaceClass);
+ return -ENODEV;
+ }
+
+ em28xx_err(DRIVER_NAME " new video device (%04x:%04x): interface %i, class %i\n",
+ udev->descriptor.idVendor,udev->descriptor.idProduct,
+ ifnum,
+ interface->altsetting[0].desc.bInterfaceClass);
+
+ endpoint = &interface->cur_altsetting->endpoint[1].desc;
+
+ /* check if the the device has the iso in endpoint at the correct place */
+ if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
+ USB_ENDPOINT_XFER_ISOC) {
+ em28xx_err(DRIVER_NAME " probing error: endpoint is non-ISO endpoint!\n");
+ return -ENODEV;
+ }
+ if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
+ em28xx_err(DRIVER_NAME " probing error: endpoint is ISO OUT endpoint!\n");
+ return -ENODEV;
+ }
+
+ model=id->driver_info;
+ nr=interface->minor;
+
+ if (nr>EM28XX_MAXBOARDS) {
+ printk (DRIVER_NAME ": Supports only %i em28xx boards.\n",EM28XX_MAXBOARDS);
+ return -ENOMEM;
+ }
+
+ /* allocate memory for our device state and initialize it */
+ dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL) {
+ em28xx_err(DRIVER_NAME ": out of memory!\n");
+ return -ENOMEM;
+ }
+ memset(dev, 0, sizeof(*dev));
+
+ /* compute alternate max packet sizes */
+ uif = udev->actconfig->interface[0];
+
+ dev->num_alt=uif->num_altsetting;
+ printk(DRIVER_NAME ": Alternate settings: %i\n",dev->num_alt);
+// dev->alt_max_pkt_size = kmalloc(sizeof(*dev->alt_max_pkt_size)*
+ dev->alt_max_pkt_size = kmalloc(32*
+ dev->num_alt,GFP_KERNEL);
+ if (dev->alt_max_pkt_size == NULL) {
+ em28xx_err(DRIVER_NAME ": out of memory!\n");
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < dev->num_alt ; i++) {
+ u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
+ wMaxPacketSize);
+ dev->alt_max_pkt_size[i] =
+ (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
+ printk(DRIVER_NAME ": Alternate setting %i, max size= %i\n",i,
+ dev->alt_max_pkt_size[i]);
+ }
+
+ snprintf(dev->name, 29, "em28xx #%d", nr);
+
+ if ((card[nr]>=0)&&(card[nr]<em28xx_bcount))
+ model=card[nr];
+
+ if ((model==EM2800_BOARD_UNKNOWN)||(model==EM2820_BOARD_UNKNOWN)) {
+ printk( "%s: Your board has no eeprom inside it and thus can't\n"
+ "%s: be autodetected. Please pass card=<n> insmod option to\n"
+ "%s: workaround that. Redirect complaints to the vendor of\n"
+ "%s: the TV card. Best regards,\n"
+ "%s: -- tux\n",
+ dev->name,dev->name,dev->name,dev->name,dev->name);
+ printk("%s: Here is a list of valid choices for the card=<n> insmod option:\n",
+ dev->name);
+ for (i = 0; i < em28xx_bcount; i++) {
+ printk("%s: card=%d -> %s\n",
+ dev->name, i, em28xx_boards[i].name);
+ }
+ }
+
+ /* allocate device struct */
+ retval = em28xx_init_dev(&dev, udev, nr, model);
+ if (retval)
+ return retval;
+
+ em28xx_info("Found %s\n", em28xx_boards[model].name);
+
+ /* save our data pointer in this interface device */
+ usb_set_intfdata(interface, dev);
+ return 0;
+}
+
+/*
+ * em28xx_usb_disconnect()
+ * called when the device gets diconencted
+ * video device will be unregistered on v4l2_close in case it is still open
+ */
+static void em28xx_usb_disconnect(struct usb_interface *interface)
+{
+ struct em28xx *dev = usb_get_intfdata(interface);
+ usb_set_intfdata(interface, NULL);
+
+ if (!dev)
+ return;
+
+ down_write(&em28xx_disconnect);
+
+ down(&dev->lock);
+
+ em28xx_info("disconnecting %s\n", dev->vdev->name);
+
+ wake_up_interruptible_all(&dev->open);
+
+ if (dev->users) {
+ em28xx_warn
+ ("device /dev/video%d is open! Deregistration and memory "
+ "deallocation are deferred on close.\n", dev->vdev->minor);
+ dev->state |= DEV_MISCONFIGURED;
+ em28xx_uninit_isoc(dev);
+ dev->state |= DEV_DISCONNECTED;
+ wake_up_interruptible(&dev->wait_frame);
+ wake_up_interruptible(&dev->wait_stream);
+ } else {
+ dev->state |= DEV_DISCONNECTED;
+ em28xx_release_resources(dev);
+ }
+
+ up(&dev->lock);
+
+ if (!dev->users) {
+ kfree(dev->alt_max_pkt_size);
+ kfree(dev);
+ }
+
+ up_write(&em28xx_disconnect);
+}
+
+static struct usb_driver em28xx_usb_driver = {
+ .owner = THIS_MODULE,
+ .name = "em28xx",
+ .probe = em28xx_usb_probe,
+ .disconnect = em28xx_usb_disconnect,
+ .id_table = em28xx_id_table,
+};
+
+static int __init em28xx_module_init(void)
+{
+ int result;
+
+ printk(KERN_INFO DRIVER_NAME " v4l2 driver version %d.%d.%d loaded\n",
+ (EM28XX_VERSION_CODE >> 16) & 0xff,
+ (EM28XX_VERSION_CODE >> 8) & 0xff, EM28XX_VERSION_CODE & 0xff);
+#ifdef SNAPSHOT
+ printk(KERN_INFO DRIVER_NAME " snapshot date %04d-%02d-%02d\n",
+ SNAPSHOT / 10000, (SNAPSHOT / 100) % 100, SNAPSHOT % 100);
+#endif
+
+ /* register this driver with the USB subsystem */
+ result = usb_register(&em28xx_usb_driver);
+ if (result)
+ em28xx_err(DRIVER_NAME
+ " usb_register failed. Error number %d.\n", result);
+
+ return result;
+}
+
+static void __exit em28xx_module_exit(void)
+{
+ /* deregister this driver with the USB subsystem */
+ usb_deregister(&em28xx_usb_driver);
+}
+
+module_init(em28xx_module_init);
+module_exit(em28xx_module_exit);
diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h
new file mode 100644
index 00000000000..5c7a41ce69f
--- /dev/null
+++ b/drivers/media/video/em28xx/em28xx.h
@@ -0,0 +1,513 @@
+/*
+ em28xx-cards.c - driver for Empia EM2800/EM2820/2840 USB video capture devices
+
+ Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
+ Ludovico Cavedon <cavedon@sssup.it>
+ Mauro Carvalho Chehab <mchehab@brturbo.com.br>
+
+ Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
+
+ 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
+ (at your option) 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _EM28XX_H
+#define _EM28XX_H
+
+#include <linux/videodev.h>
+#include <linux/i2c.h>
+#include <media/ir-kbd-i2c.h>
+
+/* Boards supported by driver */
+
+#define EM2800_BOARD_UNKNOWN 0
+#define EM2820_BOARD_UNKNOWN 1
+#define EM2820_BOARD_TERRATEC_CINERGY_250 2
+#define EM2820_BOARD_PINNACLE_USB_2 3
+#define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4
+#define EM2820_BOARD_MSI_VOX_USB_2 5
+#define EM2800_BOARD_TERRATEC_CINERGY_200 6
+#define EM2800_BOARD_LEADTEK_WINFAST_USBII 7
+#define EM2800_BOARD_KWORLD_USB2800 8
+#define EM2820_BOARD_PINNACLE_DVC_90 9
+
+#define UNSET -1
+
+/* maximum number of em28xx boards */
+#define EM28XX_MAXBOARDS 1 /*FIXME: should be bigger */
+
+/* maximum number of frames that can be queued */
+#define EM28XX_NUM_FRAMES 5
+/* number of frames that get used for v4l2_read() */
+#define EM28XX_NUM_READ_FRAMES 2
+
+/* number of buffers for isoc transfers */
+#define EM28XX_NUM_BUFS 5
+
+/* number of packets for each buffer
+ windows requests only 40 packets .. so we better do the same
+ this is what I found out for all alternate numbers there!
+ */
+#define EM28XX_NUM_PACKETS 40
+
+/* default alternate; 0 means choose the best */
+#define EM28XX_PINOUT 0
+
+#define EM28XX_INTERLACED_DEFAULT 1
+
+/*
+#define (use usbview if you want to get the other alternate number infos)
+#define
+#define alternate number 2
+#define Endpoint Address: 82
+ Direction: in
+ Attribute: 1
+ Type: Isoc
+ Max Packet Size: 1448
+ Interval: 125us
+
+ alternate number 7
+
+ Endpoint Address: 82
+ Direction: in
+ Attribute: 1
+ Type: Isoc
+ Max Packet Size: 3072
+ Interval: 125us
+*/
+
+/* time to wait when stopping the isoc transfer */
+#define EM28XX_URB_TIMEOUT msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS)
+
+/* time in msecs to wait for i2c writes to finish */
+#define EM2800_I2C_WRITE_TIMEOUT 20
+
+/* the various frame states */
+enum em28xx_frame_state {
+ F_UNUSED = 0,
+ F_QUEUED,
+ F_GRABBING,
+ F_DONE,
+ F_ERROR,
+};
+
+/* stream states */
+enum em28xx_stream_state {
+ STREAM_OFF,
+ STREAM_INTERRUPT,
+ STREAM_ON,
+};
+
+/* frames */
+struct em28xx_frame_t {
+ void *bufmem;
+ struct v4l2_buffer buf;
+ enum em28xx_frame_state state;
+ struct list_head frame;
+ unsigned long vma_use_count;
+ int top_field;
+ int fieldbytesused;
+};
+
+/* io methods */
+enum em28xx_io_method {
+ IO_NONE,
+ IO_READ,
+ IO_MMAP,
+};
+
+/* inputs */
+
+#define MAX_EM28XX_INPUT 4
+enum enum28xx_itype {
+ EM28XX_VMUX_COMPOSITE1 = 1,
+ EM28XX_VMUX_COMPOSITE2,
+ EM28XX_VMUX_COMPOSITE3,
+ EM28XX_VMUX_COMPOSITE4,
+ EM28XX_VMUX_SVIDEO,
+ EM28XX_VMUX_TELEVISION,
+ EM28XX_VMUX_CABLE,
+ EM28XX_VMUX_DVB,
+ EM28XX_VMUX_DEBUG,
+ EM28XX_RADIO,
+};
+
+struct em28xx_input {
+ enum enum28xx_itype type;
+ unsigned int vmux;
+ unsigned int amux;
+};
+
+#define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
+
+enum em28xx_decoder {
+ EM28XX_TVP5150,
+ EM28XX_SAA7113,
+ EM28XX_SAA7114
+};
+
+struct em28xx_board {
+ char *name;
+ int vchannels;
+ int norm;
+ int tuner_type;
+
+ /* i2c flags */
+ unsigned int is_em2800;
+ unsigned int tda9887_conf;
+
+ unsigned int has_tuner:1;
+ unsigned int has_msp34xx:1;
+
+ enum em28xx_decoder decoder;
+
+ struct em28xx_input input[MAX_EM28XX_INPUT];
+};
+
+struct em28xx_eeprom {
+ u32 id; /* 0x9567eb1a */
+ u16 vendor_ID;
+ u16 product_ID;
+
+ u16 chip_conf;
+
+ u16 board_conf;
+
+ u16 string1, string2, string3;
+
+ u8 string_idx_table;
+};
+
+/* device states */
+enum em28xx_dev_state {
+ DEV_INITIALIZED = 0x01,
+ DEV_DISCONNECTED = 0x02,
+ DEV_MISCONFIGURED = 0x04,
+};
+
+/* tvnorms */
+struct em28xx_tvnorm {
+ char *name;
+ v4l2_std_id id;
+ /* mode for saa7113h */
+ int mode;
+};
+
+/* main device struct */
+struct em28xx {
+ /* generic device properties */
+ char name[30]; /* name (including minor) of the device */
+ int model; /* index in the device_data struct */
+ unsigned int is_em2800;
+ int video_inputs; /* number of video inputs */
+ struct list_head devlist;
+ unsigned int has_tuner:1;
+ unsigned int has_msp34xx:1;
+ unsigned int has_tda9887:1;
+
+ enum em28xx_decoder decoder;
+
+ int tuner_type; /* type of the tuner */
+ int tuner_addr; /* tuner address */
+ int tda9887_conf;
+ /* i2c i/o */
+ struct i2c_adapter i2c_adap;
+ struct i2c_client i2c_client;
+ /* video for linux */
+ int users; /* user count for exclusive use */
+ struct video_device *vdev; /* video for linux device struct */
+ struct video_picture vpic; /* picture settings only used to init saa7113h */
+ struct em28xx_tvnorm *tvnorm; /* selected tv norm */
+ int ctl_freq; /* selected frequency */
+ unsigned int ctl_input; /* selected input */
+ unsigned int ctl_ainput; /* slected audio input */
+ int mute;
+ int volume;
+ /* frame properties */
+ struct em28xx_frame_t frame[EM28XX_NUM_FRAMES]; /* list of frames */
+ int num_frames; /* number of frames currently in use */
+ unsigned int frame_count; /* total number of transfered frames */
+ struct em28xx_frame_t *frame_current; /* the frame that is being filled */
+ int width; /* current frame width */
+ int height; /* current frame height */
+ int frame_size; /* current frame size */
+ int field_size; /* current field size */
+ int bytesperline;
+ int hscale; /* horizontal scale factor (see datasheet) */
+ int vscale; /* vertical scale factor (see datasheet) */
+ int interlaced; /* 1=interlace fileds, 0=just top fileds */
+ int type;
+
+ /* states */
+ enum em28xx_dev_state state;
+ enum em28xx_stream_state stream;
+ enum em28xx_io_method io;
+ /* locks */
+ struct semaphore lock, fileop_lock;
+ spinlock_t queue_lock;
+ struct list_head inqueue, outqueue;
+ wait_queue_head_t open, wait_frame, wait_stream;
+ struct video_device *vbi_dev;
+
+ unsigned char eedata[256];
+
+ /* usb transfer */
+ struct usb_device *udev; /* the usb device */
+ int alt; /* alternate */
+ int max_pkt_size; /* max packet size of isoc transaction */
+ int num_alt; /* Number of alternative settings */
+ unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
+ struct urb *urb[EM28XX_NUM_BUFS]; /* urb for isoc transfers */
+ char *transfer_buffer[EM28XX_NUM_BUFS]; /* transfer buffers for isoc transfer */
+ /* helper funcs that call usb_control_msg */
+ int (*em28xx_write_regs) (struct em28xx * dev, u16 reg, char *buf,
+ int len);
+ int (*em28xx_read_reg) (struct em28xx * dev, u16 reg);
+ int (*em28xx_read_reg_req_len) (struct em28xx * dev, u8 req, u16 reg,
+ char *buf, int len);
+ int (*em28xx_write_regs_req) (struct em28xx * dev, u8 req, u16 reg,
+ char *buf, int len);
+ int (*em28xx_read_reg_req) (struct em28xx * dev, u8 req, u16 reg);
+};
+
+/* Provided by em28xx-i2c.c */
+
+void em28xx_i2c_call_clients(struct em28xx *dev, unsigned int cmd, void *arg);
+int em28xx_i2c_register(struct em28xx *dev);
+int em28xx_i2c_unregister(struct em28xx *dev);
+
+/* Provided by em28xx-input.c */
+
+void em28xx_set_ir(struct em28xx * dev,struct IR_i2c *ir);
+
+/* Provided by em28xx-core.c */
+
+void em28xx_print_ioctl(char *name, unsigned int cmd);
+
+u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
+void em28xx_queue_unusedframes(struct em28xx *dev);
+void em28xx_release_buffers(struct em28xx *dev);
+
+int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
+ char *buf, int len);
+int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
+int em28xx_read_reg(struct em28xx *dev, u16 reg);
+int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
+ int len);
+int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
+int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
+ u8 bitmask);
+int em28xx_write_ac97(struct em28xx *dev, u8 reg, u8 * val);
+int em28xx_audio_analog_set(struct em28xx *dev);
+int em28xx_colorlevels_set_default(struct em28xx *dev);
+int em28xx_capture_start(struct em28xx *dev, int start);
+int em28xx_outfmt_set_yuv422(struct em28xx *dev);
+int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax, u8 ymin,
+ u8 ymax);
+int em28xx_capture_area_set(struct em28xx *dev, u8 hstart, u8 vstart,
+ u16 width, u16 height);
+int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v);
+int em28xx_resolution_set(struct em28xx *dev);
+void em28xx_isocIrq(struct urb *urb, struct pt_regs *regs);
+int em28xx_init_isoc(struct em28xx *dev);
+void em28xx_uninit_isoc(struct em28xx *dev);
+int em28xx_set_alternate(struct em28xx *dev);
+
+/* Provided by em28xx-cards.c */
+extern int em2800_variant_detect(struct usb_device* udev,int model);
+extern void em28xx_card_setup(struct em28xx *dev);
+extern struct em28xx_board em28xx_boards[];
+extern struct usb_device_id em28xx_id_table[];
+extern const unsigned int em28xx_bcount;
+
+/* em28xx registers */
+#define CHIPID_REG 0x0a
+#define USBSUSP_REG 0x0c /* */
+
+#define AUDIOSRC_REG 0x0e
+#define XCLK_REG 0x0f
+
+#define VINMODE_REG 0x10
+#define VINCTRL_REG 0x11
+#define VINENABLE_REG 0x12 /* */
+
+#define GAMMA_REG 0x14
+#define RGAIN_REG 0x15
+#define GGAIN_REG 0x16
+#define BGAIN_REG 0x17
+#define ROFFSET_REG 0x18
+#define GOFFSET_REG 0x19
+#define BOFFSET_REG 0x1a
+
+#define OFLOW_REG 0x1b
+#define HSTART_REG 0x1c
+#define VSTART_REG 0x1d
+#define CWIDTH_REG 0x1e
+#define CHEIGHT_REG 0x1f
+
+#define YGAIN_REG 0x20
+#define YOFFSET_REG 0x21
+#define UVGAIN_REG 0x22
+#define UOFFSET_REG 0x23
+#define VOFFSET_REG 0x24
+#define SHARPNESS_REG 0x25
+
+#define COMPR_REG 0x26
+#define OUTFMT_REG 0x27
+
+#define XMIN_REG 0x28
+#define XMAX_REG 0x29
+#define YMIN_REG 0x2a
+#define YMAX_REG 0x2b
+
+#define HSCALELOW_REG 0x30
+#define HSCALEHIGH_REG 0x31
+#define VSCALELOW_REG 0x32
+#define VSCALEHIGH_REG 0x33
+
+#define AC97LSB_REG 0x40
+#define AC97MSB_REG 0x41
+#define AC97ADDR_REG 0x42
+#define AC97BUSY_REG 0x43
+
+/* em202 registers */
+#define MASTER_AC97 0x02
+#define VIDEO_AC97 0x14
+
+/* register settings */
+#define EM28XX_AUDIO_SRC_TUNER 0xc0
+#define EM28XX_AUDIO_SRC_LINE 0x80
+
+/* printk macros */
+
+#define em28xx_err(fmt, arg...) do {\
+ printk(KERN_ERR fmt , ##arg); } while (0)
+
+#define em28xx_errdev(fmt, arg...) do {\
+ printk(KERN_ERR "%s: "fmt,\
+ dev->name , ##arg); } while (0)
+
+#define em28xx_info(fmt, arg...) do {\
+ printk(KERN_INFO "%s: "fmt,\
+ dev->name , ##arg); } while (0)
+#define em28xx_warn(fmt, arg...) do {\
+ printk(KERN_WARNING "%s: "fmt,\
+ dev->name , ##arg); } while (0)
+
+inline static int em28xx_audio_source(struct em28xx *dev, int input)
+{
+ return em28xx_write_reg_bits(dev, AUDIOSRC_REG, input, 0xc0);
+}
+
+inline static int em28xx_audio_usb_mute(struct em28xx *dev, int mute)
+{
+ return em28xx_write_reg_bits(dev, XCLK_REG, mute ? 0x00 : 0x80, 0x80);
+}
+
+inline static int em28xx_audio_analog_setup(struct em28xx *dev)
+{
+ /* unmute video mixer with default volume level */
+ return em28xx_write_ac97(dev, VIDEO_AC97, "\x08\x08");
+}
+
+inline static int em28xx_compression_disable(struct em28xx *dev)
+{
+ /* side effect of disabling scaler and mixer */
+ return em28xx_write_regs(dev, COMPR_REG, "\x00", 1);
+}
+
+inline static int em28xx_contrast_get(struct em28xx *dev)
+{
+ return em28xx_read_reg(dev, YGAIN_REG) & 0x1f;
+}
+
+inline static int em28xx_brightness_get(struct em28xx *dev)
+{
+ return em28xx_read_reg(dev, YOFFSET_REG);
+}
+
+inline static int em28xx_saturation_get(struct em28xx *dev)
+{
+ return em28xx_read_reg(dev, UVGAIN_REG) & 0x1f;
+}
+
+inline static int em28xx_u_balance_get(struct em28xx *dev)
+{
+ return em28xx_read_reg(dev, UOFFSET_REG);
+}
+
+inline static int em28xx_v_balance_get(struct em28xx *dev)
+{
+ return em28xx_read_reg(dev, VOFFSET_REG);
+}
+
+inline static int em28xx_gamma_get(struct em28xx *dev)
+{
+ return em28xx_read_reg(dev, GAMMA_REG) & 0x3f;
+}
+
+inline static int em28xx_contrast_set(struct em28xx *dev, s32 val)
+{
+ u8 tmp = (u8) val;
+ return em28xx_write_regs(dev, YGAIN_REG, &tmp, 1);
+}
+
+inline static int em28xx_brightness_set(struct em28xx *dev, s32 val)
+{
+ u8 tmp = (u8) val;
+ return em28xx_write_regs(dev, YOFFSET_REG, &tmp, 1);
+}
+
+inline static int em28xx_saturation_set(struct em28xx *dev, s32 val)
+{
+ u8 tmp = (u8) val;
+ return em28xx_write_regs(dev, UVGAIN_REG, &tmp, 1);
+}
+
+inline static int em28xx_u_balance_set(struct em28xx *dev, s32 val)
+{
+ u8 tmp = (u8) val;
+ return em28xx_write_regs(dev, UOFFSET_REG, &tmp, 1);
+}
+
+inline static int em28xx_v_balance_set(struct em28xx *dev, s32 val)
+{
+ u8 tmp = (u8) val;
+ return em28xx_write_regs(dev, VOFFSET_REG, &tmp, 1);
+}
+
+inline static int em28xx_gamma_set(struct em28xx *dev, s32 val)
+{
+ u8 tmp = (u8) val;
+ return em28xx_write_regs(dev, GAMMA_REG, &tmp, 1);
+}
+
+/*FIXME: maxw should be dependent of alt mode */
+inline static unsigned int norm_maxw(struct em28xx *dev)
+{
+ switch(dev->model){
+ case (EM2820_BOARD_MSI_VOX_USB_2): return(640);
+ default: return(720);
+ }
+}
+
+inline static unsigned int norm_maxh(struct em28xx *dev)
+{
+ switch(dev->model){
+ case (EM2820_BOARD_MSI_VOX_USB_2): return(480);
+ default: return (dev->tvnorm->id & V4L2_STD_625_50) ? 576 : 480;
+ }
+}
+
+#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-09 02:41:41 +0000