4 #include <media/v4l2-common.h>
5 #include <media/v4l2-ioctl.h>
6 #include <media/saa7146.h>
7 #include <media/videobuf-dma-sg.h>
9 #define MAX_SAA7146_CAPTURE_BUFFERS 32 /* arbitrary */
10 #define BUFFER_TIMEOUT (HZ/2) /* 0.5 seconds */
12 #define WRITE_RPS0(x) do { \
13 dev->d_rps0.cpu_addr[ count++ ] = cpu_to_le32(x); \
16 #define WRITE_RPS1(x) do { \
17 dev->d_rps1.cpu_addr[ count++ ] = cpu_to_le32(x); \
20 struct saa7146_video_dma {
29 #define FORMAT_BYTE_SWAP 0x1
30 #define FORMAT_IS_PLANAR 0x2
32 struct saa7146_format {
41 struct saa7146_standard
46 int v_offset; /* number of lines of vertical offset before processing */
47 int v_field; /* number of lines in a field for HPS to process */
49 int h_offset; /* horizontal offset of processing window */
50 int h_pixels; /* number of horizontal pixels to process */
56 /* buffer for one video/vbi frame */
58 /* common v4l buffer stuff -- must be first */
59 struct videobuf_buffer vb;
61 /* saa7146 specific */
62 struct v4l2_pix_format *fmt;
63 int (*activate)(struct saa7146_dev *dev,
64 struct saa7146_buf *buf,
65 struct saa7146_buf *next);
68 struct saa7146_pgtable pt[3];
71 struct saa7146_dmaqueue {
72 struct saa7146_dev *dev;
73 struct saa7146_buf *curr;
74 struct list_head queue;
75 struct timer_list timeout;
78 struct saa7146_overlay {
79 struct saa7146_fh *fh;
80 struct v4l2_window win;
81 struct v4l2_clip clips[16];
87 struct saa7146_dev *dev;
90 struct videobuf_queue video_q;
93 struct videobuf_queue vbi_q;
95 unsigned int resources; /* resource management for device open */
98 #define STATUS_OVERLAY 0x01
99 #define STATUS_CAPTURE 0x02
104 struct saa7146_dmaqueue vbi_q;
105 struct v4l2_vbi_format vbi_fmt;
106 struct timer_list vbi_read_timeout;
107 /* vbi workaround interrupt queue */
108 wait_queue_head_t vbi_wq;
110 struct saa7146_fh *vbi_streaming;
113 struct saa7146_fh *video_fh;
116 struct saa7146_overlay ov;
117 struct v4l2_framebuffer ov_fb;
118 struct saa7146_format *ov_fmt;
119 struct saa7146_fh *ov_suspend;
122 struct saa7146_dmaqueue video_q;
123 struct v4l2_pix_format video_fmt;
124 enum v4l2_field last_field;
126 /* common: fixme? shouldn't this be in saa7146_fh?
127 (this leads to a more complicated question: shall the driver
128 store the different settings (for example S_INPUT) for every open
129 and restore it appropriately, or should all settings be common for
130 all opens? currently, we do the latter, like all other
132 struct saa7146_standard *standard;
136 int current_hps_source;
137 int current_hps_sync;
139 struct saa7146_dma d_clipping; /* pointer to clipping memory */
141 unsigned int resources; /* resource management for device */
145 #define SAA7146_USE_PORT_B_FOR_VBI 0x2 /* use input port b for vbi hardware bug workaround */
147 struct saa7146_ext_vv
149 /* informations about the video capabilities of the device */
155 /* additionally supported transmission standards */
156 struct saa7146_standard *stds;
158 int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *);
160 /* the extension can override this */
161 struct v4l2_ioctl_ops ops;
162 /* pointer to the saa7146 core ops */
163 const struct v4l2_ioctl_ops *core_ops;
165 struct v4l2_file_operations vbi_fops;
168 struct saa7146_use_ops {
169 void (*init)(struct saa7146_dev *, struct saa7146_vv *);
170 int(*open)(struct saa7146_dev *, struct file *);
171 void (*release)(struct saa7146_dev *, struct file *);
172 void (*irq_done)(struct saa7146_dev *, unsigned long status);
173 ssize_t (*read)(struct file *, char __user *, size_t, loff_t *);
176 /* from saa7146_fops.c */
177 int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev, char *name, int type);
178 int saa7146_unregister_device(struct video_device **vid, struct saa7146_dev* dev);
179 void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state);
180 void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi);
181 int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf);
182 void saa7146_buffer_timeout(unsigned long data);
183 void saa7146_dma_free(struct saa7146_dev* dev,struct videobuf_queue *q,
184 struct saa7146_buf *buf);
186 int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv);
187 int saa7146_vv_release(struct saa7146_dev* dev);
189 /* from saa7146_hlp.c */
190 int saa7146_enable_overlay(struct saa7146_fh *fh);
191 void saa7146_disable_overlay(struct saa7146_fh *fh);
193 void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next);
194 void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ;
195 void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync);
196 void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
198 /* from saa7146_video.c */
199 extern const struct v4l2_ioctl_ops saa7146_video_ioctl_ops;
200 extern struct saa7146_use_ops saa7146_video_uops;
201 int saa7146_start_preview(struct saa7146_fh *fh);
202 int saa7146_stop_preview(struct saa7146_fh *fh);
203 long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg);
204 int saa7146_s_ctrl(struct v4l2_ctrl *ctrl);
206 /* from saa7146_vbi.c */
207 extern struct saa7146_use_ops saa7146_vbi_uops;
209 /* resource management functions */
210 int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit);
211 void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits);
213 #define RESOURCE_DMA1_HPS 0x1
214 #define RESOURCE_DMA2_CLP 0x2
215 #define RESOURCE_DMA3_BRS 0x4
217 /* saa7146 source inputs */
218 #define SAA7146_HPS_SOURCE_PORT_A 0x00
219 #define SAA7146_HPS_SOURCE_PORT_B 0x01
220 #define SAA7146_HPS_SOURCE_YPB_CPA 0x02
221 #define SAA7146_HPS_SOURCE_YPA_CPB 0x03
224 #define SAA7146_HPS_SYNC_PORT_A 0x00
225 #define SAA7146_HPS_SYNC_PORT_B 0x01
227 /* some memory sizes */
228 /* max. 16 clipping rectangles */
229 #define SAA7146_CLIPPING_MEM (16 * 4 * sizeof(u32))
231 /* some defines for the various clipping-modes */
232 #define SAA7146_CLIPPING_RECT 0x4
233 #define SAA7146_CLIPPING_RECT_INVERTED 0x5
234 #define SAA7146_CLIPPING_MASK 0x6
235 #define SAA7146_CLIPPING_MASK_INVERTED 0x7
237 /* output formats: each entry holds four informations */
238 #define RGB08_COMPOSED 0x0217 /* composed is used in the sense of "not-planar" */
239 /* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */
240 #define RGB15_COMPOSED 0x0213
241 #define RGB16_COMPOSED 0x0210
242 #define RGB24_COMPOSED 0x0201
243 #define RGB32_COMPOSED 0x0202
246 #define YUV411_COMPOSED 0x0003
247 #define YUV422_COMPOSED 0x0000
248 /* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */
249 #define YUV411_DECOMPOSED 0x100b
250 #define YUV422_DECOMPOSED 0x1009
251 #define YUV420_DECOMPOSED 0x100a
253 #define IS_PLANAR(x) (x & 0xf000)
256 #define SAA7146_NO_SWAP (0x0)
257 #define SAA7146_TWO_BYTE_SWAP (0x1)
258 #define SAA7146_FOUR_BYTE_SWAP (0x2)