* Derived from ivtv-driver.h
*
* Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
- * Copyright (C) 2008 Andy Walls <awalls@radix.net>
+ * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
*
* 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
#include <linux/pagemap.h>
#include <linux/workqueue.h>
#include <linux/mutex.h>
+#include <linux/slab.h>
#include <asm/byteorder.h>
#include <linux/dvb/video.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-device.h>
#include <media/tuner.h>
+#include <media/ir-kbd-i2c.h>
#include "cx18-mailbox.h"
#include "cx18-av-core.h"
#include "cx23418.h"
/* Maximum firmware DMA buffers per stream */
#define CX18_MAX_FW_MDLS_PER_STREAM 63
+/* YUV buffer sizes in bytes to ensure integer # of frames per buffer */
+#define CX18_UNIT_ENC_YUV_BUFSIZE (720 * 32 * 3 / 2) /* bytes */
+#define CX18_625_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 576/32)
+#define CX18_525_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 480/32)
+
+/* IDX buffer size should be a multiple of the index entry size from the chip */
+struct cx18_enc_idx_entry {
+ __le32 length;
+ __le32 offset_low;
+ __le32 offset_high;
+ __le32 flags;
+ __le32 pts_low;
+ __le32 pts_high;
+} __attribute__ ((packed));
+#define CX18_UNIT_ENC_IDX_BUFSIZE \
+ (sizeof(struct cx18_enc_idx_entry) * V4L2_ENC_IDX_ENTRIES)
+
/* DMA buffer, default size in kB allocated */
#define CX18_DEFAULT_ENC_TS_BUFSIZE 32
#define CX18_DEFAULT_ENC_MPG_BUFSIZE 32
-#define CX18_DEFAULT_ENC_IDX_BUFSIZE 32
-#define CX18_DEFAULT_ENC_YUV_BUFSIZE 128
-/* Default VBI bufsize based on standards supported by card tuner for now */
+#define CX18_DEFAULT_ENC_IDX_BUFSIZE (CX18_UNIT_ENC_IDX_BUFSIZE * 1 / 1024 + 1)
+#define CX18_DEFAULT_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 3 / 1024 + 1)
#define CX18_DEFAULT_ENC_PCM_BUFSIZE 4
/* i2c stuff */
#define CX18_WARN_DEV(dev, fmt, args...) v4l2_warn(dev, fmt , ## args)
#define CX18_INFO_DEV(dev, fmt, args...) v4l2_info(dev, fmt , ## args)
-/* Values for CX18_API_DEC_PLAYBACK_SPEED mpeg_frame_type_mask parameter: */
-#define MPEG_FRAME_TYPE_IFRAME 1
-#define MPEG_FRAME_TYPE_IFRAME_PFRAME 3
-#define MPEG_FRAME_TYPE_ALL 7
-
-#define CX18_MAX_PGM_INDEX (400)
-
extern int cx18_debug;
-
struct cx18_options {
int megabytes[CX18_MAX_STREAMS]; /* Size in megabytes of each stream */
int cardtype; /* force card type on load */
int radio; /* enable/disable radio */
};
-/* per-buffer bit flags */
-#define CX18_F_B_NEED_BUF_SWAP 0 /* this buffer should be byte swapped */
+/* per-mdl bit flags */
+#define CX18_F_M_NEED_SWAP 0 /* mdl buffer data must be endianess swapped */
/* per-stream, s_flags */
#define CX18_F_S_CLAIMED 3 /* this stream is claimed */
#define CX18_SLICED_TYPE_WSS_625 (5)
#define CX18_SLICED_TYPE_VPS (7)
+/**
+ * list_entry_is_past_end - check if a previous loop cursor is off list end
+ * @pos: the type * previously used as a loop cursor.
+ * @head: the head for your list.
+ * @member: the name of the list_struct within the struct.
+ *
+ * Check if the entry's list_head is the head of the list, thus it's not a
+ * real entry but was the loop cursor that walked past the end
+ */
+#define list_entry_is_past_end(pos, head, member) \
+ (&pos->member == (head))
+
struct cx18_buffer {
struct list_head list;
dma_addr_t dma_handle;
- u32 id;
- unsigned long b_flags;
- unsigned skipped;
char *buf;
u32 bytesused;
u32 readpos;
};
+struct cx18_mdl {
+ struct list_head list;
+ u32 id; /* index into cx->scb->cpu_mdl[] of 1st cx18_mdl_ent */
+
+ unsigned int skipped;
+ unsigned long m_flags;
+
+ struct list_head buf_list;
+ struct cx18_buffer *curr_buf; /* current buffer in list for reading */
+
+ u32 bytesused;
+ u32 readpos;
+};
+
struct cx18_queue {
struct list_head list;
- atomic_t buffers;
+ atomic_t depth;
u32 bytesused;
spinlock_t lock;
};
const char *name; /* name of the stream */
int type; /* stream type */
u32 handle; /* task handle */
- unsigned mdl_offset;
+ unsigned int mdl_base_idx;
u32 id;
unsigned long s_flags; /* status flags, see above */
PCI_DMA_NONE */
wait_queue_head_t waitq;
- /* Buffer Stats */
- u32 buffers;
- u32 buf_size;
+ /* Buffers */
+ struct list_head buf_pool; /* buffers not attached to an MDL */
+ u32 buffers; /* total buffers owned by this stream */
+ u32 buf_size; /* size in bytes of a single buffer */
+
+ /* MDL sizes - all stream MDLs are the same size */
+ u32 bufs_per_mdl;
+ u32 mdl_size; /* total bytes in all buffers in a mdl */
- /* Buffer Queues */
- struct cx18_queue q_free; /* free buffers */
- struct cx18_queue q_busy; /* busy buffers - in use by firmware */
- struct cx18_queue q_full; /* full buffers - data for user apps */
+ /* MDL Queues */
+ struct cx18_queue q_free; /* free - in rotation, not committed */
+ struct cx18_queue q_busy; /* busy - in use by firmware */
+ struct cx18_queue q_full; /* full - data for user apps */
+ struct cx18_queue q_idle; /* idle - not in rotation */
struct work_struct out_work_order;
u32 inserted_frame;
/*
- * A dummy driver stream transfer buffer with a copy of the next
+ * A dummy driver stream transfer mdl & buffer with a copy of the next
* sliced_mpeg_data[] buffer for output to userland apps.
* Only used in cx18-fileops.c, but its state needs to persist at times.
*/
+ struct cx18_mdl sliced_mpeg_mdl;
struct cx18_buffer sliced_mpeg_buf;
};
u8 is_60hz;
u8 nof_inputs; /* number of video inputs */
u8 nof_audio_inputs; /* number of audio inputs */
- u16 buffer_id; /* buffer ID counter */
u32 v4l2_cap; /* V4L2 capabilities of card */
u32 hw_flags; /* Hardware description of the board */
- unsigned mdl_offset;
+ unsigned int free_mdl_idx;
struct cx18_scb __iomem *scb; /* pointer to SCB */
struct mutex epu2apu_mb_lock; /* protect driver to chip mailbox in SCB*/
struct mutex epu2cpu_mb_lock; /* protect driver to chip mailbox in SCB*/
int stream_buffers[CX18_MAX_STREAMS]; /* # of buffers for each stream */
int stream_buf_size[CX18_MAX_STREAMS]; /* Stream buffer size */
struct cx18_stream streams[CX18_MAX_STREAMS]; /* Stream data */
+ struct snd_cx18_card *alsa; /* ALSA interface for PCM capture stream */
+ void (*pcm_announce_callback)(struct snd_cx18_card *card, u8 *pcm_data,
+ size_t num_bytes);
+
unsigned long i_flags; /* global cx18 flags */
atomic_t ana_capturing; /* count number of active analog capture streams */
atomic_t tot_capturing; /* total count number of active capture streams */
struct vbi_info vbi;
- u32 pgm_info_offset;
- u32 pgm_info_num;
- u32 pgm_info_write_idx;
- u32 pgm_info_read_idx;
- struct v4l2_enc_idx_entry pgm_info[CX18_MAX_PGM_INDEX];
-
u64 mpg_data_received;
u64 vbi_data_inserted;
struct i2c_algo_bit_data i2c_algo[2];
struct cx18_i2c_algo_callback_data i2c_algo_cb_data[2];
+ struct IR_i2c_init_data ir_i2c_init_data;
+
/* gpio */
u32 gpio_dir;
u32 gpio_val;
u32 active_input;
v4l2_std_id std;
v4l2_std_id tuner_std; /* The norm of the tuner (fixed) */
+
+ /* Used for cx18-alsa module loading */
+ struct work_struct request_module_wk;
};
static inline struct cx18 *to_cx18(struct v4l2_device *v4l2_dev)
return container_of(v4l2_dev, struct cx18, v4l2_dev);
}
+/* cx18 extensions to be loaded */
+extern int (*cx18_ext_init)(struct cx18 *);
+
/* Globals */
extern int cx18_first_minor;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff