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Diffstat (limited to 'drivers/media/usb/em28xx/em28xx.h')
-rw-r--r--drivers/media/usb/em28xx/em28xx.h149
1 files changed, 87 insertions, 62 deletions
diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h
index 86e90d86da6d..5f0b2c59e846 100644
--- a/drivers/media/usb/em28xx/em28xx.h
+++ b/drivers/media/usb/em28xx/em28xx.h
@@ -4,6 +4,7 @@
Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
Ludovico Cavedon <cavedon@sssup.it>
Mauro Carvalho Chehab <mchehab@infradead.org>
+ Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com>
Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
@@ -30,13 +31,12 @@
#include <linux/mutex.h>
#include <linux/videodev2.h>
-#include <media/videobuf-vmalloc.h>
+#include <media/videobuf2-vmalloc.h>
#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-fh.h>
#include <media/ir-kbd-i2c.h>
#include <media/rc-core.h>
-#if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
-#include <media/videobuf-dvb.h>
-#endif
#include "tuner-xc2028.h"
#include "xc5000.h"
#include "em28xx-reg.h"
@@ -157,12 +157,18 @@
#define EM28XX_NUM_BUFS 5
#define EM28XX_DVB_NUM_BUFS 5
-/* number of packets for each buffer
+/* isoc transfers: number of packets for each buffer
windows requests only 64 packets .. so we better do the same
this is what I found out for all alternate numbers there!
*/
-#define EM28XX_NUM_PACKETS 64
-#define EM28XX_DVB_MAX_PACKETS 64
+#define EM28XX_NUM_ISOC_PACKETS 64
+#define EM28XX_DVB_NUM_ISOC_PACKETS 64
+
+/* bulk transfers: transfer buffer size = packet size * packet multiplier
+ USB 2.0 spec says bulk packet size is always 512 bytes
+ */
+#define EM28XX_BULK_PACKET_MULTIPLIER 384
+#define EM28XX_DVB_BULK_PACKET_MULTIPLIER 384
#define EM28XX_INTERLACED_DEFAULT 1
@@ -187,12 +193,8 @@
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
+#define EM2800_I2C_XFER_TIMEOUT 20
enum em28xx_mode {
EM28XX_SUSPEND,
@@ -203,7 +205,7 @@ enum em28xx_mode {
struct em28xx;
-struct em28xx_usb_isoc_bufs {
+struct em28xx_usb_bufs {
/* max packet size of isoc transaction */
int max_pkt_size;
@@ -213,26 +215,26 @@ struct em28xx_usb_isoc_bufs {
/* number of allocated urbs */
int num_bufs;
- /* urb for isoc transfers */
+ /* urb for isoc/bulk transfers */
struct urb **urb;
- /* transfer buffers for isoc transfer */
+ /* transfer buffers for isoc/bulk transfer */
char **transfer_buffer;
};
-struct em28xx_usb_isoc_ctl {
- /* isoc transfer buffers for analog mode */
- struct em28xx_usb_isoc_bufs analog_bufs;
+struct em28xx_usb_ctl {
+ /* isoc/bulk transfer buffers for analog mode */
+ struct em28xx_usb_bufs analog_bufs;
- /* isoc transfer buffers for digital mode */
- struct em28xx_usb_isoc_bufs digital_bufs;
+ /* isoc/bulk transfer buffers for digital mode */
+ struct em28xx_usb_bufs digital_bufs;
/* Stores already requested buffers */
struct em28xx_buffer *vid_buf;
struct em28xx_buffer *vbi_buf;
- /* isoc urb callback */
- int (*isoc_copy) (struct em28xx *dev, struct urb *urb);
+ /* copy data from URB */
+ int (*urb_data_copy) (struct em28xx *dev, struct urb *urb);
};
@@ -247,19 +249,26 @@ struct em28xx_fmt {
/* buffer for one video frame */
struct em28xx_buffer {
/* common v4l buffer stuff -- must be first */
- struct videobuf_buffer vb;
+ struct vb2_buffer vb;
+ struct list_head list;
- struct list_head frame;
+ void *mem;
+ unsigned int length;
int top_field;
+
+ /* counter to control buffer fill */
+ unsigned int pos;
+ /* NOTE; in interlaced mode, this value is reset to zero at
+ * the start of each new field (not frame !) */
+
+ /* pointer to vmalloc memory address in vb */
+ char *vb_buf;
};
struct em28xx_dmaqueue {
struct list_head active;
wait_queue_head_t wq;
-
- /* Counters to control buffer fill */
- int pos;
};
/* inputs */
@@ -430,13 +439,6 @@ struct em28xx_eeprom {
u8 string_idx_table;
};
-/* device states */
-enum em28xx_dev_state {
- DEV_INITIALIZED = 0x01,
- DEV_DISCONNECTED = 0x02,
- DEV_MISCONFIGURED = 0x04,
-};
-
#define EM28XX_AUDIO_BUFS 5
#define EM28XX_NUM_AUDIO_PACKETS 64
#define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
@@ -469,12 +471,8 @@ struct em28xx_audio {
struct em28xx;
struct em28xx_fh {
+ struct v4l2_fh fh;
struct em28xx *dev;
- int radio;
- unsigned int resources;
-
- struct videobuf_queue vb_vidq;
- struct videobuf_queue vb_vbiq;
enum v4l2_buf_type type;
};
@@ -487,9 +485,14 @@ struct em28xx {
int devno; /* marks the number of this device */
enum em28xx_chip_id chip_id;
+ unsigned char disconnected:1; /* device has been diconnected */
+
int audio_ifnum;
struct v4l2_device v4l2_dev;
+ struct v4l2_ctrl_handler ctrl_handler;
+ /* provides ac97 mute and volume overrides */
+ struct v4l2_ctrl_handler ac97_ctrl_handler;
struct em28xx_board board;
/* Webcam specific fields */
@@ -497,7 +500,7 @@ struct em28xx {
int sensor_xres, sensor_yres;
int sensor_xtal;
- /* Allows progressive (e. g. non-interlaced) mode */
+ /* Progressive (non-interlaced) mode */
int progressive;
/* Vinmode/Vinctl used at the driver */
@@ -532,6 +535,7 @@ struct em28xx {
struct i2c_client i2c_client;
/* video for linux */
int users; /* user count for exclusive use */
+ int streaming_users; /* Number of actively streaming users */
struct video_device *vdev; /* video for linux device struct */
v4l2_std_id norm; /* selected tv norm */
int ctl_freq; /* selected frequency */
@@ -554,13 +558,10 @@ struct em28xx {
struct em28xx_audio adev;
- /* states */
- enum em28xx_dev_state state;
-
- /* vbi related state tracking */
+ /* capture state tracking */
int capture_type;
+ unsigned char top_field:1;
int vbi_read;
- unsigned char cur_field;
unsigned int vbi_width;
unsigned int vbi_height; /* lines per field */
@@ -574,6 +575,12 @@ struct em28xx {
struct video_device *vbi_dev;
struct video_device *radio_dev;
+ /* Videobuf2 */
+ struct vb2_queue vb_vidq;
+ struct vb2_queue vb_vbiq;
+ struct mutex vb_queue_lock;
+ struct mutex vb_vbi_queue_lock;
+
/* resources in use */
unsigned int resources;
@@ -582,17 +589,31 @@ struct em28xx {
/* Isoc control struct */
struct em28xx_dmaqueue vidq;
struct em28xx_dmaqueue vbiq;
- struct em28xx_usb_isoc_ctl isoc_ctl;
+ struct em28xx_usb_ctl usb_ctl;
spinlock_t slock;
+ unsigned int field_count;
+ unsigned int vbi_field_count;
+
/* 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 */
- int dvb_alt; /* alternate for DVB */
- unsigned int dvb_max_pkt_size; /* wMaxPacketSize for DVB */
+ u8 analog_ep_isoc; /* address of isoc endpoint for analog */
+ u8 analog_ep_bulk; /* address of bulk endpoint for analog */
+ u8 dvb_ep_isoc; /* address of isoc endpoint for DVB */
+ u8 dvb_ep_bulk; /* address of bulk endpoint for DVC */
+ int alt; /* alternate setting */
+ int max_pkt_size; /* max packet size of the selected ep at alt */
+ int packet_multiplier; /* multiplier for wMaxPacketSize, used for
+ URB buffer size definition */
+ int num_alt; /* number of alternative settings */
+ unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */
+ unsigned int analog_xfer_bulk:1; /* use bulk instead of isoc
+ transfers for analog */
+ int dvb_alt_isoc; /* alternate setting for DVB isoc transfers */
+ unsigned int dvb_max_pkt_size_isoc; /* isoc max packet size of the
+ selected DVB ep at dvb_alt */
+ unsigned int dvb_xfer_bulk:1; /* use bulk instead of isoc
+ transfers for DVB */
char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */
/* helper funcs that call usb_control_msg */
@@ -619,9 +640,6 @@ struct em28xx {
struct delayed_work sbutton_query_work;
struct em28xx_dvb *dvb;
-
- /* I2C keyboard data */
- struct IR_i2c_init_data init_data;
};
struct em28xx_ops {
@@ -666,12 +684,14 @@ int em28xx_vbi_supported(struct em28xx *dev);
int em28xx_set_outfmt(struct em28xx *dev);
int em28xx_resolution_set(struct em28xx *dev);
int em28xx_set_alternate(struct em28xx *dev);
-int em28xx_alloc_isoc(struct em28xx *dev, enum em28xx_mode mode,
- int max_packets, int num_bufs, int max_pkt_size);
-int em28xx_init_isoc(struct em28xx *dev, enum em28xx_mode mode,
- int max_packets, int num_bufs, int max_pkt_size,
- int (*isoc_copy) (struct em28xx *dev, struct urb *urb));
-void em28xx_uninit_isoc(struct em28xx *dev, enum em28xx_mode mode);
+int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
+ int num_bufs, int max_pkt_size, int packet_multiplier);
+int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
+ int xfer_bulk,
+ int num_bufs, int max_pkt_size, int packet_multiplier,
+ int (*urb_data_copy)
+ (struct em28xx *dev, struct urb *urb));
+void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode);
void em28xx_stop_urbs(struct em28xx *dev);
int em28xx_isoc_dvb_max_packetsize(struct em28xx *dev);
int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
@@ -683,8 +703,13 @@ void em28xx_init_extension(struct em28xx *dev);
void em28xx_close_extension(struct em28xx *dev);
/* Provided by em28xx-video.c */
+int em28xx_vb2_setup(struct em28xx *dev);
int em28xx_register_analog_devices(struct em28xx *dev);
void em28xx_release_analog_resources(struct em28xx *dev);
+void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv);
+int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count);
+int em28xx_stop_vbi_streaming(struct vb2_queue *vq);
+extern const struct v4l2_ctrl_ops em28xx_ctrl_ops;
/* Provided by em28xx-cards.c */
extern int em2800_variant_detect(struct usb_device *udev, int model);
@@ -695,7 +720,7 @@ int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
void em28xx_release_resources(struct em28xx *dev);
/* Provided by em28xx-vbi.c */
-extern struct videobuf_queue_ops em28xx_vbi_qops;
+extern struct vb2_ops em28xx_vbi_qops;
/* printk macros */
generated by cgit v1.2.3 (git 2.0.4) at 2024-07-10 19:31:10 +0000