To compile this driver as a module, choose M here: the
module will be called em28xx-alsa
+config VIDEO_EM28XX_DVB
+ tristate "DVB/ATSC Support for em28xx based TV cards"
+ depends on VIDEO_EM28XX && DVB_CORE
+ select VIDEOBUF_DVB
+ select FW_LOADER
+ ---help---
+ This adds support for DVB cards based on the
+ Empiatech em28xx chips.
obj-$(CONFIG_VIDEO_EM28XX) += em28xx.o
obj-$(CONFIG_VIDEO_EM28XX_ALSA) += em28xx-alsa.o
+obj-$(CONFIG_VIDEO_EM28XX_DVB) += em28xx-dvb.o
EXTRA_CFLAGS += -Idrivers/media/video
EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core
unsigned int tuner;
};
-/* 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 EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10
-#define EM2880_BOARD_TERRATEC_HYBRID_XS 11
-#define EM2820_BOARD_KWORLD_PVRTV2800RF 12
-#define EM2880_BOARD_TERRATEC_PRODIGY_XS 13
-#define EM2820_BOARD_PROLINK_PLAYTV_USB2 14
-#define EM2800_BOARD_VGEAR_POCKETTV 15
-#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950 16
-
struct em28xx_board em28xx_boards[] = {
[EM2800_BOARD_UNKNOWN] = {
.name = "Unknown EM2800 video grabber",
dev->analog_gpio = em28xx_boards[dev->model].analog_gpio;
dev->has_12mhz_i2s = em28xx_boards[dev->model].has_12mhz_i2s;
dev->max_range_640_480 = em28xx_boards[dev->model].max_range_640_480;
+ dev->has_dvb = em28xx_boards[dev->model].has_dvb;
}
/* ----------------------------------------------------------------------- */
--- /dev/null
+/*
+ DVB device driver for em28xx
+
+ (c) 2008 Mauro Carvalho Chehab <mchehab@infradead.org>
+
+ Based on cx88-dvb and saa7134-dvb originally written by:
+ (c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
+ (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
+
+ 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/usb.h>
+
+#include "em28xx.h"
+#include <media/v4l2-common.h>
+#include <media/videobuf-vmalloc.h>
+
+#include "lgdt330x.h"
+#include "tuner-xc2028.h"
+#include "tuner-xc2028-types.h"
+
+MODULE_DESCRIPTION("driver for em28xx based DVB cards");
+MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
+MODULE_LICENSE("GPL");
+
+static unsigned int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+#define dprintk(level, fmt, arg...) do { \
+if (debug >= level) \
+ printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg) \
+} while (0)
+
+static int
+buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
+{
+ struct em28xx_fh *fh = vq->priv_data;
+ struct em28xx *dev = fh->dev;
+
+ *size = 16 * fh->dev->width * fh->dev->height >> 3;
+ if (0 == *count)
+ *count = EM28XX_DEF_BUF;
+
+ if (*count < EM28XX_MIN_BUF)
+ *count = EM28XX_MIN_BUF;
+
+ dev->mode = EM28XX_DIGITAL_MODE;
+
+ return 0;
+}
+
+/* ------------------------------------------------------------------ */
+
+/* Add demods here */
+
+/* ------------------------------------------------------------------ */
+
+static int attach_xc3028(u8 addr, struct em28xx *dev)
+{
+ struct dvb_frontend *fe;
+ struct xc2028_ctrl ctl;
+ struct xc2028_config cfg = {
+ .i2c_adap = &dev->i2c_adap,
+ .i2c_addr = addr,
+ .ctrl = &ctl,
+ };
+
+ if (!dev->dvb.frontend) {
+ printk(KERN_ERR "%s/2: dvb frontend not attached. "
+ "Can't attach xc3028\n",
+ dev->name);
+ return -EINVAL;
+ }
+
+ fe = dvb_attach(xc2028_attach, dev->dvb.frontend, &cfg);
+ if (!fe) {
+ printk(KERN_ERR "%s/2: xc3028 attach failed\n",
+ dev->name);
+ dvb_frontend_detach(dev->dvb.frontend);
+ dvb_unregister_frontend(dev->dvb.frontend);
+ dev->dvb.frontend = NULL;
+ return -EINVAL;
+ }
+
+ printk(KERN_INFO "%s/2: xc3028 attached\n", dev->name);
+
+ return 0;
+}
+
+static int dvb_init(struct em28xx *dev)
+{
+ /* init struct videobuf_dvb */
+ dev->dvb.name = dev->name;
+
+ dev->qops->buf_setup = buffer_setup;
+
+ videobuf_queue_vmalloc_init(&dev->dvb.dvbq, dev->qops,
+ &dev->udev->dev, &dev->slock,
+ V4L2_BUF_TYPE_VIDEO_CAPTURE,
+ V4L2_FIELD_ALTERNATE,
+ sizeof(struct em28xx_buffer), dev);
+
+ /* init frontend */
+ switch (dev->model) {
+ default:
+ printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card"
+ " isn't supported yet\n",
+ dev->name);
+ break;
+ }
+ if (NULL == dev->dvb.frontend) {
+ printk(KERN_ERR
+ "%s/2: frontend initialization failed\n",
+ dev->name);
+ return -EINVAL;
+ }
+
+ /* register everything */
+ return videobuf_dvb_register(&dev->dvb, THIS_MODULE, dev,
+ &dev->udev->dev,
+ adapter_nr);
+}
+
+static int dvb_fini(struct em28xx *dev)
+{
+ if (dev->dvb.frontend)
+ videobuf_dvb_unregister(&dev->dvb);
+
+ return 0;
+}
+
+static struct em28xx_ops dvb_ops = {
+ .id = EM28XX_DVB,
+ .name = "Em28xx dvb Extension",
+ .init = dvb_init,
+ .fini = dvb_fini,
+};
+
+static int __init em28xx_dvb_register(void)
+{
+ return em28xx_register_extension(&dvb_ops);
+}
+
+static void __exit em28xx_dvb_unregister(void)
+{
+ em28xx_unregister_extension(&dvb_ops);
+}
+
+module_init(em28xx_dvb_register);
+module_exit(em28xx_dvb_unregister);
printk(KERN_INFO "%s %s :"fmt, \
dev->name, __func__ , ##arg); } while (0)
-/* Limits minimum and default number of buffers */
-#define EM28XX_MIN_BUF 4
-#define EM28XX_DEF_BUF 8
-
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
request_module("snd-usb-audio");
else
request_module("em28xx-alsa");
+
+ if (dev->has_dvb)
+ request_module("em28xx-dvb");
}
static void request_modules(struct em28xx *dev)
/* save our data pointer in this interface device */
usb_set_intfdata(interface, dev);
+#if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
+ dev->qops = kmalloc(sizeof(em28xx_video_qops), GFP_KERNEL);
+ memcpy(dev->qops, &em28xx_video_qops, sizeof(em28xx_video_qops));
+#endif
+
request_modules(dev);
return 0;
#include <linux/i2c.h>
#include <linux/mutex.h>
#include <media/ir-kbd-i2c.h>
+#if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
+#include <media/videobuf-dvb.h>
+#endif
+
+/* 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 EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10
+#define EM2880_BOARD_TERRATEC_HYBRID_XS 11
+#define EM2820_BOARD_KWORLD_PVRTV2800RF 12
+#define EM2880_BOARD_TERRATEC_PRODIGY_XS 13
+#define EM2820_BOARD_PROLINK_PLAYTV_USB2 14
+#define EM2800_BOARD_VGEAR_POCKETTV 15
+#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950 16
+
+/* Limits minimum and default number of buffers */
+#define EM28XX_MIN_BUF 4
+#define EM28XX_DEF_BUF 8
/* maximum number of em28xx boards */
#define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */
/* time in msecs to wait for i2c writes to finish */
#define EM2800_I2C_WRITE_TIMEOUT 20
+enum em28xx_mode {
+ EM28XX_ANALOG_MODE,
+ EM28XX_DIGITAL_MODE,
+};
+
enum em28xx_stream_state {
STREAM_OFF,
STREAM_INTERRUPT,
unsigned int mts_firmware:1;
unsigned int has_12mhz_i2s:1;
unsigned int max_range_640_480:1;
+ unsigned int has_dvb:1;
unsigned int analog_gpio;
#define EM28XX_NUM_AUDIO_PACKETS 64
#define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
#define EM28XX_CAPTURE_STREAM_EN 1
+
+/* em28xx extensions */
#define EM28XX_AUDIO 0x10
+#define EM28XX_DVB 0x20
struct em28xx_audio {
char name[50];
unsigned int has_audio_class:1;
unsigned int has_12mhz_i2s:1;
unsigned int max_range_640_480:1;
+ unsigned int has_dvb:1;
int video_inputs; /* number of video inputs */
struct list_head devlist;
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);
+
+ enum em28xx_mode mode;
+
+#if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
+ struct videobuf_dvb dvb;
+ struct videobuf_queue_ops *qops;
+#endif
};
struct em28xx_fh {
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