1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __SAA7146_VV__ 3 #define __SAA7146_VV__ 4 5 #include <media/v4l2-common.h> 6 #include <media/v4l2-ioctl.h> 7 #include <media/v4l2-fh.h> 8 #include <media/drv-intf/saa7146.h> 9 #include <media/videobuf-dma-sg.h> 10 11 #define MAX_SAA7146_CAPTURE_BUFFERS 32 /* arbitrary */ 12 #define BUFFER_TIMEOUT (HZ/2) /* 0.5 seconds */ 13 14 #define WRITE_RPS0(x) do { \ 15 dev->d_rps0.cpu_addr[ count++ ] = cpu_to_le32(x); \ 16 } while (0); 17 18 #define WRITE_RPS1(x) do { \ 19 dev->d_rps1.cpu_addr[ count++ ] = cpu_to_le32(x); \ 20 } while (0); 21 22 struct saa7146_video_dma { 23 u32 base_odd; 24 u32 base_even; 25 u32 prot_addr; 26 u32 pitch; 27 u32 base_page; 28 u32 num_line_byte; 29 }; 30 31 #define FORMAT_BYTE_SWAP 0x1 32 #define FORMAT_IS_PLANAR 0x2 33 34 struct saa7146_format { 35 u32 pixelformat; 36 u32 trans; 37 u8 depth; 38 u8 flags; 39 u8 swap; 40 }; 41 42 struct saa7146_standard 43 { 44 char *name; 45 v4l2_std_id id; 46 47 int v_offset; /* number of lines of vertical offset before processing */ 48 int v_field; /* number of lines in a field for HPS to process */ 49 50 int h_offset; /* horizontal offset of processing window */ 51 int h_pixels; /* number of horizontal pixels to process */ 52 53 int v_max_out; 54 int h_max_out; 55 }; 56 57 /* buffer for one video/vbi frame */ 58 struct saa7146_buf { 59 /* common v4l buffer stuff -- must be first */ 60 struct videobuf_buffer vb; 61 62 /* saa7146 specific */ 63 struct v4l2_pix_format *fmt; 64 int (*activate)(struct saa7146_dev *dev, 65 struct saa7146_buf *buf, 66 struct saa7146_buf *next); 67 68 /* page tables */ 69 struct saa7146_pgtable pt[3]; 70 }; 71 72 struct saa7146_dmaqueue { 73 struct saa7146_dev *dev; 74 struct saa7146_buf *curr; 75 struct list_head queue; 76 struct timer_list timeout; 77 }; 78 79 /* per open data */ 80 struct saa7146_fh { 81 /* Must be the first field! */ 82 struct v4l2_fh fh; 83 struct saa7146_dev *dev; 84 85 /* video capture */ 86 struct videobuf_queue video_q; 87 88 /* vbi capture */ 89 struct videobuf_queue vbi_q; 90 91 unsigned int resources; /* resource management for device open */ 92 }; 93 94 #define STATUS_CAPTURE 0x02 95 96 struct saa7146_vv 97 { 98 /* vbi capture */ 99 struct saa7146_dmaqueue vbi_dmaq; 100 struct v4l2_vbi_format vbi_fmt; 101 struct timer_list vbi_read_timeout; 102 struct file *vbi_read_timeout_file; 103 /* vbi workaround interrupt queue */ 104 wait_queue_head_t vbi_wq; 105 int vbi_fieldcount; 106 struct saa7146_fh *vbi_streaming; 107 108 int video_status; 109 struct saa7146_fh *video_fh; 110 111 /* video capture */ 112 struct saa7146_dmaqueue video_dmaq; 113 struct v4l2_pix_format video_fmt; 114 enum v4l2_field last_field; 115 116 /* common: fixme? shouldn't this be in saa7146_fh? 117 (this leads to a more complicated question: shall the driver 118 store the different settings (for example S_INPUT) for every open 119 and restore it appropriately, or should all settings be common for 120 all opens? currently, we do the latter, like all other 121 drivers do... */ 122 struct saa7146_standard *standard; 123 124 int vflip; 125 int hflip; 126 int current_hps_source; 127 int current_hps_sync; 128 129 unsigned int resources; /* resource management for device */ 130 }; 131 132 /* flags */ 133 #define SAA7146_USE_PORT_B_FOR_VBI 0x2 /* use input port b for vbi hardware bug workaround */ 134 135 struct saa7146_ext_vv 136 { 137 /* information about the video capabilities of the device */ 138 int inputs; 139 int audios; 140 u32 capabilities; 141 int flags; 142 143 /* additionally supported transmission standards */ 144 struct saa7146_standard *stds; 145 int num_stds; 146 int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *); 147 148 /* the extension can override this */ 149 struct v4l2_ioctl_ops vid_ops; 150 struct v4l2_ioctl_ops vbi_ops; 151 /* pointer to the saa7146 core ops */ 152 const struct v4l2_ioctl_ops *core_ops; 153 154 struct v4l2_file_operations vbi_fops; 155 }; 156 157 struct saa7146_use_ops { 158 void (*init)(struct saa7146_dev *, struct saa7146_vv *); 159 int(*open)(struct saa7146_dev *, struct file *); 160 void (*release)(struct saa7146_dev *, struct file *); 161 void (*irq_done)(struct saa7146_dev *, unsigned long status); 162 ssize_t (*read)(struct file *, char __user *, size_t, loff_t *); 163 }; 164 165 /* from saa7146_fops.c */ 166 int saa7146_register_device(struct video_device *vid, struct saa7146_dev *dev, char *name, int type); 167 int saa7146_unregister_device(struct video_device *vid, struct saa7146_dev *dev); 168 void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state); 169 void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi); 170 int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf); 171 void saa7146_buffer_timeout(struct timer_list *t); 172 void saa7146_dma_free(struct saa7146_dev* dev,struct videobuf_queue *q, 173 struct saa7146_buf *buf); 174 175 int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv); 176 int saa7146_vv_release(struct saa7146_dev* dev); 177 178 /* from saa7146_hlp.c */ 179 void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next); 180 void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ; 181 void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync); 182 void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data); 183 184 /* from saa7146_video.c */ 185 extern const struct v4l2_ioctl_ops saa7146_video_ioctl_ops; 186 extern const struct v4l2_ioctl_ops saa7146_vbi_ioctl_ops; 187 extern const struct saa7146_use_ops saa7146_video_uops; 188 long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg); 189 int saa7146_s_ctrl(struct v4l2_ctrl *ctrl); 190 191 /* from saa7146_vbi.c */ 192 extern const struct saa7146_use_ops saa7146_vbi_uops; 193 194 /* resource management functions */ 195 int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit); 196 void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits); 197 198 #define RESOURCE_DMA1_HPS 0x1 199 #define RESOURCE_DMA2_CLP 0x2 200 #define RESOURCE_DMA3_BRS 0x4 201 202 /* saa7146 source inputs */ 203 #define SAA7146_HPS_SOURCE_PORT_A 0x00 204 #define SAA7146_HPS_SOURCE_PORT_B 0x01 205 #define SAA7146_HPS_SOURCE_YPB_CPA 0x02 206 #define SAA7146_HPS_SOURCE_YPA_CPB 0x03 207 208 /* sync inputs */ 209 #define SAA7146_HPS_SYNC_PORT_A 0x00 210 #define SAA7146_HPS_SYNC_PORT_B 0x01 211 212 /* some memory sizes */ 213 /* max. 16 clipping rectangles */ 214 #define SAA7146_CLIPPING_MEM (16 * 4 * sizeof(u32)) 215 216 /* some defines for the various clipping-modes */ 217 #define SAA7146_CLIPPING_RECT 0x4 218 #define SAA7146_CLIPPING_RECT_INVERTED 0x5 219 #define SAA7146_CLIPPING_MASK 0x6 220 #define SAA7146_CLIPPING_MASK_INVERTED 0x7 221 222 /* output formats: each entry holds four information */ 223 #define RGB08_COMPOSED 0x0217 /* composed is used in the sense of "not-planar" */ 224 /* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */ 225 #define RGB15_COMPOSED 0x0213 226 #define RGB16_COMPOSED 0x0210 227 #define RGB24_COMPOSED 0x0201 228 #define RGB32_COMPOSED 0x0202 229 230 #define Y8 0x0006 231 #define YUV411_COMPOSED 0x0003 232 #define YUV422_COMPOSED 0x0000 233 /* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */ 234 #define YUV411_DECOMPOSED 0x100b 235 #define YUV422_DECOMPOSED 0x1009 236 #define YUV420_DECOMPOSED 0x100a 237 238 #define IS_PLANAR(x) (x & 0xf000) 239 240 /* misc defines */ 241 #define SAA7146_NO_SWAP (0x0) 242 #define SAA7146_TWO_BYTE_SWAP (0x1) 243 #define SAA7146_FOUR_BYTE_SWAP (0x2) 244 245 #endif 246