--- /dev/null
+/*
+ * zoran - Iomega Buz driver
+ *
+ * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
+ *
+ * based on
+ *
+ * zoran.0.0.3 Copyright (C) 1998 Dave Perks <dperks@ibm.net>
+ *
+ * and
+ *
+ * bttv - Bt848 frame grabber driver
+ * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
+ * & Marcus Metzler (mocm@thp.uni-koeln.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 _BUZ_H_
+#define _BUZ_H_
+
+#include <media/v4l2-device.h>
+
+struct zoran_sync {
+ unsigned long frame; /* number of buffer that has been free'd */
+ unsigned long length; /* number of code bytes in buffer (capture only) */
+ unsigned long seq; /* frame sequence number */
+ struct timeval timestamp; /* timestamp */
+};
+
+
+#define ZORAN_NAME "ZORAN" /* name of the device */
+
+#define ZR_DEVNAME(zr) ((zr)->name)
+
+#define BUZ_MAX_WIDTH (zr->timing->Wa)
+#define BUZ_MAX_HEIGHT (zr->timing->Ha)
+#define BUZ_MIN_WIDTH 32 /* never display less than 32 pixels */
+#define BUZ_MIN_HEIGHT 24 /* never display less than 24 rows */
+
+#define BUZ_NUM_STAT_COM 4
+#define BUZ_MASK_STAT_COM 3
+
+#define BUZ_MAX_FRAME 256 /* Must be a power of 2 */
+#define BUZ_MASK_FRAME 255 /* Must be BUZ_MAX_FRAME-1 */
+
+#define BUZ_MAX_INPUT 16
+
+#if VIDEO_MAX_FRAME <= 32
+# define V4L_MAX_FRAME 32
+#elif VIDEO_MAX_FRAME <= 64
+# define V4L_MAX_FRAME 64
+#else
+# error "Too many video frame buffers to handle"
+#endif
+#define V4L_MASK_FRAME (V4L_MAX_FRAME - 1)
+
+#define MAX_FRAME (BUZ_MAX_FRAME > VIDEO_MAX_FRAME ? BUZ_MAX_FRAME : VIDEO_MAX_FRAME)
+
+#include "zr36057.h"
+
+enum card_type {
+ UNKNOWN = -1,
+
+ /* Pinnacle/Miro */
+ DC10_old, /* DC30 like */
+ DC10_new, /* DC10plus like */
+ DC10plus,
+ DC30,
+ DC30plus,
+
+ /* Linux Media Labs */
+ LML33,
+ LML33R10,
+
+ /* Iomega */
+ BUZ,
+
+ /* AverMedia */
+ AVS6EYES,
+
+ /* total number of cards */
+ NUM_CARDS
+};
+
+enum zoran_codec_mode {
+ BUZ_MODE_IDLE, /* nothing going on */
+ BUZ_MODE_MOTION_COMPRESS, /* grabbing frames */
+ BUZ_MODE_MOTION_DECOMPRESS, /* playing frames */
+ BUZ_MODE_STILL_COMPRESS, /* still frame conversion */
+ BUZ_MODE_STILL_DECOMPRESS /* still frame conversion */
+};
+
+enum zoran_buffer_state {
+ BUZ_STATE_USER, /* buffer is owned by application */
+ BUZ_STATE_PEND, /* buffer is queued in pend[] ready to feed to I/O */
+ BUZ_STATE_DMA, /* buffer is queued in dma[] for I/O */
+ BUZ_STATE_DONE /* buffer is ready to return to application */
+};
+
+enum zoran_map_mode {
+ ZORAN_MAP_MODE_RAW,
+ ZORAN_MAP_MODE_JPG_REC,
+#define ZORAN_MAP_MODE_JPG ZORAN_MAP_MODE_JPG_REC
+ ZORAN_MAP_MODE_JPG_PLAY,
+};
+
+enum gpio_type {
+ ZR_GPIO_JPEG_SLEEP = 0,
+ ZR_GPIO_JPEG_RESET,
+ ZR_GPIO_JPEG_FRAME,
+ ZR_GPIO_VID_DIR,
+ ZR_GPIO_VID_EN,
+ ZR_GPIO_VID_RESET,
+ ZR_GPIO_CLK_SEL1,
+ ZR_GPIO_CLK_SEL2,
+ ZR_GPIO_MAX,
+};
+
+enum gpcs_type {
+ GPCS_JPEG_RESET = 0,
+ GPCS_JPEG_START,
+ GPCS_MAX,
+};
+
+struct zoran_format {
+ char *name;
+ __u32 fourcc;
+ int colorspace;
+ int depth;
+ __u32 flags;
+ __u32 vfespfr;
+};
+/* flags */
+#define ZORAN_FORMAT_COMPRESSED 1<<0
+#define ZORAN_FORMAT_OVERLAY 1<<1
+#define ZORAN_FORMAT_CAPTURE 1<<2
+#define ZORAN_FORMAT_PLAYBACK 1<<3
+
+/* overlay-settings */
+struct zoran_overlay_settings {
+ int is_set;
+ int x, y, width, height; /* position */
+ int clipcount; /* position and number of clips */
+ const struct zoran_format *format; /* overlay format */
+};
+
+/* v4l-capture settings */
+struct zoran_v4l_settings {
+ int width, height, bytesperline; /* capture size */
+ const struct zoran_format *format; /* capture format */
+};
+
+/* jpg-capture/-playback settings */
+struct zoran_jpg_settings {
+ int decimation; /* this bit is used to set everything to default */
+ int HorDcm, VerDcm, TmpDcm; /* capture decimation settings (TmpDcm=1 means both fields) */
+ int field_per_buff, odd_even; /* field-settings (odd_even=1 (+TmpDcm=1) means top-field-first) */
+ int img_x, img_y, img_width, img_height; /* crop settings (subframe capture) */
+ struct v4l2_jpegcompression jpg_comp; /* JPEG-specific capture settings */
+};
+
+struct zoran_fh;
+
+struct zoran_mapping {
+ struct zoran_fh *fh;
+ atomic_t count;
+};
+
+struct zoran_buffer {
+ struct zoran_mapping *map;
+ enum zoran_buffer_state state; /* state: unused/pending/dma/done */
+ struct zoran_sync bs; /* DONE: info to return to application */
+ union {
+ struct {
+ __le32 *frag_tab; /* addresses of frag table */
+ u32 frag_tab_bus; /* same value cached to save time in ISR */
+ } jpg;
+ struct {
+ char *fbuffer; /* virtual address of frame buffer */
+ unsigned long fbuffer_phys;/* physical address of frame buffer */
+ unsigned long fbuffer_bus;/* bus address of frame buffer */
+ } v4l;
+ };
+};
+
+enum zoran_lock_activity {
+ ZORAN_FREE, /* free for use */
+ ZORAN_ACTIVE, /* active but unlocked */
+ ZORAN_LOCKED, /* locked */
+};
+
+/* buffer collections */
+struct zoran_buffer_col {
+ enum zoran_lock_activity active; /* feature currently in use? */
+ unsigned int num_buffers, buffer_size;
+ struct zoran_buffer buffer[MAX_FRAME]; /* buffers */
+ u8 allocated; /* Flag if buffers are allocated */
+ u8 need_contiguous; /* Flag if contiguous buffers are needed */
+ /* only applies to jpg buffers, raw buffers are always contiguous */
+};
+
+struct zoran;
+
+/* zoran_fh contains per-open() settings */
+struct zoran_fh {
+ struct zoran *zr;
+
+ enum zoran_map_mode map_mode; /* Flag which bufferset will map by next mmap() */
+
+ struct zoran_overlay_settings overlay_settings;
+ u32 *overlay_mask; /* overlay mask */
+ enum zoran_lock_activity overlay_active;/* feature currently in use? */
+
+ struct zoran_buffer_col buffers; /* buffers' info */
+
+ struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */
+ struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */
+};
+
+struct card_info {
+ enum card_type type;
+ char name[32];
+ const char *i2c_decoder; /* i2c decoder device */
+ const unsigned short *addrs_decoder;
+ const char *i2c_encoder; /* i2c encoder device */
+ const unsigned short *addrs_encoder;
+ u16 video_vfe, video_codec; /* videocodec types */
+ u16 audio_chip; /* audio type */
+
+ int inputs; /* number of video inputs */
+ struct input {
+ int muxsel;
+ char name[32];
+ } input[BUZ_MAX_INPUT];
+
+ v4l2_std_id norms;
+ struct tvnorm *tvn[3]; /* supported TV norms */
+
+ u32 jpeg_int; /* JPEG interrupt */
+ u32 vsync_int; /* VSYNC interrupt */
+ s8 gpio[ZR_GPIO_MAX];
+ u8 gpcs[GPCS_MAX];
+
+ struct vfe_polarity vfe_pol;
+ u8 gpio_pol[ZR_GPIO_MAX];
+
+ /* is the /GWS line connected? */
+ u8 gws_not_connected;
+
+ /* avs6eyes mux setting */
+ u8 input_mux;
+
+ void (*init) (struct zoran * zr);
+};
+
+struct zoran {
+ struct v4l2_device v4l2_dev;
+ struct video_device *video_dev;
+
+ struct i2c_adapter i2c_adapter; /* */
+ struct i2c_algo_bit_data i2c_algo; /* */
+ u32 i2cbr;
+
+ struct v4l2_subdev *decoder; /* video decoder sub-device */
+ struct v4l2_subdev *encoder; /* video encoder sub-device */
+
+ struct videocodec *codec; /* video codec */
+ struct videocodec *vfe; /* video front end */
+
+ struct mutex resource_lock; /* prevent evil stuff */
+ struct mutex other_lock; /* please merge with above */
+
+ u8 initialized; /* flag if zoran has been correctly initialized */
+ int user; /* number of current users */
+ struct card_info card;
+ struct tvnorm *timing;
+
+ unsigned short id; /* number of this device */
+ char name[32]; /* name of this device */
+ struct pci_dev *pci_dev; /* PCI device */
+ unsigned char revision; /* revision of zr36057 */
+ unsigned char __iomem *zr36057_mem;/* pointer to mapped IO memory */
+
+ spinlock_t spinlock; /* Spinlock */
+
+ /* Video for Linux parameters */
+ int input; /* card's norm and input */
+ v4l2_std_id norm;
+
+ /* Current buffer params */
+ void *vbuf_base;
+ int vbuf_height, vbuf_width;
+ int vbuf_depth;
+ int vbuf_bytesperline;
+
+ struct zoran_overlay_settings overlay_settings;
+ u32 *overlay_mask; /* overlay mask */
+ enum zoran_lock_activity overlay_active; /* feature currently in use? */
+
+ wait_queue_head_t v4l_capq;
+
+ int v4l_overlay_active; /* Overlay grab is activated */
+ int v4l_memgrab_active; /* Memory grab is activated */
+
+ int v4l_grab_frame; /* Frame number being currently grabbed */
+#define NO_GRAB_ACTIVE (-1)
+ unsigned long v4l_grab_seq; /* Number of frames grabbed */
+ struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */
+
+ /* V4L grab queue of frames pending */
+ unsigned long v4l_pend_head;
+ unsigned long v4l_pend_tail;
+ unsigned long v4l_sync_tail;
+ int v4l_pend[V4L_MAX_FRAME];
+ struct zoran_buffer_col v4l_buffers; /* V4L buffers' info */
+
+ /* Buz MJPEG parameters */
+ enum zoran_codec_mode codec_mode; /* status of codec */
+ struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */
+
+ wait_queue_head_t jpg_capq; /* wait here for grab to finish */
+
+ /* grab queue counts/indices, mask with BUZ_MASK_STAT_COM before using as index */
+ /* (dma_head - dma_tail) is number active in DMA, must be <= BUZ_NUM_STAT_COM */
+ /* (value & BUZ_MASK_STAT_COM) corresponds to index in stat_com table */
+ unsigned long jpg_que_head; /* Index where to put next buffer which is queued */
+ unsigned long jpg_dma_head; /* Index of next buffer which goes into stat_com */
+ unsigned long jpg_dma_tail; /* Index of last buffer in stat_com */
+ unsigned long jpg_que_tail; /* Index of last buffer in queue */
+ unsigned long jpg_seq_num; /* count of frames since grab/play started */
+ unsigned long jpg_err_seq; /* last seq_num before error */
+ unsigned long jpg_err_shift;
+ unsigned long jpg_queued_num; /* count of frames queued since grab/play started */
+
+ /* zr36057's code buffer table */
+ __le32 *stat_com; /* stat_com[i] is indexed by dma_head/tail & BUZ_MASK_STAT_COM */
+
+ /* (value & BUZ_MASK_FRAME) corresponds to index in pend[] queue */
+ int jpg_pend[BUZ_MAX_FRAME];
+
+ /* array indexed by frame number */
+ struct zoran_buffer_col jpg_buffers; /* MJPEG buffers' info */
+
+ /* Additional stuff for testing */
+#ifdef CONFIG_PROC_FS
+ struct proc_dir_entry *zoran_proc;
+#else
+ void *zoran_proc;
+#endif
+ int testing;
+ int jpeg_error;
+ int intr_counter_GIRQ1;
+ int intr_counter_GIRQ0;
+ int intr_counter_CodRepIRQ;
+ int intr_counter_JPEGRepIRQ;
+ int field_counter;
+ int IRQ1_in;
+ int IRQ1_out;
+ int JPEG_in;
+ int JPEG_out;
+ int JPEG_0;
+ int JPEG_1;
+ int END_event_missed;
+ int JPEG_missed;
+ int JPEG_error;
+ int num_errors;
+ int JPEG_max_missed;
+ int JPEG_min_missed;
+
+ u32 last_isr;
+ unsigned long frame_num;
+
+ wait_queue_head_t test_q;
+};
+
+static inline struct zoran *to_zoran(struct v4l2_device *v4l2_dev)
+{
+ return container_of(v4l2_dev, struct zoran, v4l2_dev);
+}
+
+/* There was something called _ALPHA_BUZ that used the PCI address instead of
+ * the kernel iomapped address for btread/btwrite. */
+#define btwrite(dat,adr) writel((dat), zr->zr36057_mem+(adr))
+#define btread(adr) readl(zr->zr36057_mem+(adr))
+
+#define btand(dat,adr) btwrite((dat) & btread(adr), adr)
+#define btor(dat,adr) btwrite((dat) | btread(adr), adr)
+#define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
+
+#endif
Code Review / kvmfornfv.git / blobdiff