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Merge tag 'bcm2835-dt-next-2017-03-30' into devicetree/fixes
[mirror_ubuntu-artful-kernel.git] / include / video / imx-ipu-v3.h
1 /*
2 * Copyright 2005-2009 Freescale Semiconductor, Inc.
3 *
4 * The code contained herein is licensed under the GNU Lesser General
5 * Public License. You may obtain a copy of the GNU Lesser General
6 * Public License Version 2.1 or later at the following locations:
7 *
8 * http://www.opensource.org/licenses/lgpl-license.html
9 * http://www.gnu.org/copyleft/lgpl.html
10 */
11
12 #ifndef __DRM_IPU_H__
13 #define __DRM_IPU_H__
14
15 #include <linux/types.h>
16 #include <linux/videodev2.h>
17 #include <linux/bitmap.h>
18 #include <linux/fb.h>
19 #include <linux/of.h>
20 #include <media/v4l2-mediabus.h>
21 #include <video/videomode.h>
22
23 struct ipu_soc;
24
25 enum ipuv3_type {
26 IPUV3EX,
27 IPUV3M,
28 IPUV3H,
29 };
30
31 #define IPU_PIX_FMT_GBR24 v4l2_fourcc('G', 'B', 'R', '3')
32
33 /*
34 * Bitfield of Display Interface signal polarities.
35 */
36 struct ipu_di_signal_cfg {
37 unsigned data_pol:1; /* true = inverted */
38 unsigned clk_pol:1; /* true = rising edge */
39 unsigned enable_pol:1;
40
41 struct videomode mode;
42
43 u32 bus_format;
44 u32 v_to_h_sync;
45
46 #define IPU_DI_CLKMODE_SYNC (1 << 0)
47 #define IPU_DI_CLKMODE_EXT (1 << 1)
48 unsigned long clkflags;
49
50 u8 hsync_pin;
51 u8 vsync_pin;
52 };
53
54 /*
55 * Enumeration of CSI destinations
56 */
57 enum ipu_csi_dest {
58 IPU_CSI_DEST_IDMAC, /* to memory via SMFC */
59 IPU_CSI_DEST_IC, /* to Image Converter */
60 IPU_CSI_DEST_VDIC, /* to VDIC */
61 };
62
63 /*
64 * Enumeration of IPU rotation modes
65 */
66 #define IPU_ROT_BIT_VFLIP (1 << 0)
67 #define IPU_ROT_BIT_HFLIP (1 << 1)
68 #define IPU_ROT_BIT_90 (1 << 2)
69
70 enum ipu_rotate_mode {
71 IPU_ROTATE_NONE = 0,
72 IPU_ROTATE_VERT_FLIP = IPU_ROT_BIT_VFLIP,
73 IPU_ROTATE_HORIZ_FLIP = IPU_ROT_BIT_HFLIP,
74 IPU_ROTATE_180 = (IPU_ROT_BIT_VFLIP | IPU_ROT_BIT_HFLIP),
75 IPU_ROTATE_90_RIGHT = IPU_ROT_BIT_90,
76 IPU_ROTATE_90_RIGHT_VFLIP = (IPU_ROT_BIT_90 | IPU_ROT_BIT_VFLIP),
77 IPU_ROTATE_90_RIGHT_HFLIP = (IPU_ROT_BIT_90 | IPU_ROT_BIT_HFLIP),
78 IPU_ROTATE_90_LEFT = (IPU_ROT_BIT_90 |
79 IPU_ROT_BIT_VFLIP | IPU_ROT_BIT_HFLIP),
80 };
81
82 /* 90-degree rotations require the IRT unit */
83 #define ipu_rot_mode_is_irt(m) (((m) & IPU_ROT_BIT_90) != 0)
84
85 enum ipu_color_space {
86 IPUV3_COLORSPACE_RGB,
87 IPUV3_COLORSPACE_YUV,
88 IPUV3_COLORSPACE_UNKNOWN,
89 };
90
91 /*
92 * Enumeration of VDI MOTION select
93 */
94 enum ipu_motion_sel {
95 MOTION_NONE = 0,
96 LOW_MOTION,
97 MED_MOTION,
98 HIGH_MOTION,
99 };
100
101 struct ipuv3_channel;
102
103 enum ipu_channel_irq {
104 IPU_IRQ_EOF = 0,
105 IPU_IRQ_NFACK = 64,
106 IPU_IRQ_NFB4EOF = 128,
107 IPU_IRQ_EOS = 192,
108 };
109
110 /*
111 * Enumeration of IDMAC channels
112 */
113 #define IPUV3_CHANNEL_CSI0 0
114 #define IPUV3_CHANNEL_CSI1 1
115 #define IPUV3_CHANNEL_CSI2 2
116 #define IPUV3_CHANNEL_CSI3 3
117 #define IPUV3_CHANNEL_VDI_MEM_IC_VF 5
118 /*
119 * NOTE: channels 6,7 are unused in the IPU and are not IDMAC channels,
120 * but the direct CSI->VDI linking is handled the same way as IDMAC
121 * channel linking in the FSU via the IPU_FS_PROC_FLOW registers, so
122 * these channel names are used to support the direct CSI->VDI link.
123 */
124 #define IPUV3_CHANNEL_CSI_DIRECT 6
125 #define IPUV3_CHANNEL_CSI_VDI_PREV 7
126 #define IPUV3_CHANNEL_MEM_VDI_PREV 8
127 #define IPUV3_CHANNEL_MEM_VDI_CUR 9
128 #define IPUV3_CHANNEL_MEM_VDI_NEXT 10
129 #define IPUV3_CHANNEL_MEM_IC_PP 11
130 #define IPUV3_CHANNEL_MEM_IC_PRP_VF 12
131 #define IPUV3_CHANNEL_VDI_MEM_RECENT 13
132 #define IPUV3_CHANNEL_G_MEM_IC_PRP_VF 14
133 #define IPUV3_CHANNEL_G_MEM_IC_PP 15
134 #define IPUV3_CHANNEL_G_MEM_IC_PRP_VF_ALPHA 17
135 #define IPUV3_CHANNEL_G_MEM_IC_PP_ALPHA 18
136 #define IPUV3_CHANNEL_MEM_VDI_PLANE1_COMB_ALPHA 19
137 #define IPUV3_CHANNEL_IC_PRP_ENC_MEM 20
138 #define IPUV3_CHANNEL_IC_PRP_VF_MEM 21
139 #define IPUV3_CHANNEL_IC_PP_MEM 22
140 #define IPUV3_CHANNEL_MEM_BG_SYNC 23
141 #define IPUV3_CHANNEL_MEM_BG_ASYNC 24
142 #define IPUV3_CHANNEL_MEM_VDI_PLANE1_COMB 25
143 #define IPUV3_CHANNEL_MEM_VDI_PLANE3_COMB 26
144 #define IPUV3_CHANNEL_MEM_FG_SYNC 27
145 #define IPUV3_CHANNEL_MEM_DC_SYNC 28
146 #define IPUV3_CHANNEL_MEM_FG_ASYNC 29
147 #define IPUV3_CHANNEL_MEM_FG_SYNC_ALPHA 31
148 #define IPUV3_CHANNEL_MEM_FG_ASYNC_ALPHA 33
149 #define IPUV3_CHANNEL_DC_MEM_READ 40
150 #define IPUV3_CHANNEL_MEM_DC_ASYNC 41
151 #define IPUV3_CHANNEL_MEM_DC_COMMAND 42
152 #define IPUV3_CHANNEL_MEM_DC_COMMAND2 43
153 #define IPUV3_CHANNEL_MEM_DC_OUTPUT_MASK 44
154 #define IPUV3_CHANNEL_MEM_ROT_ENC 45
155 #define IPUV3_CHANNEL_MEM_ROT_VF 46
156 #define IPUV3_CHANNEL_MEM_ROT_PP 47
157 #define IPUV3_CHANNEL_ROT_ENC_MEM 48
158 #define IPUV3_CHANNEL_ROT_VF_MEM 49
159 #define IPUV3_CHANNEL_ROT_PP_MEM 50
160 #define IPUV3_CHANNEL_MEM_BG_SYNC_ALPHA 51
161 #define IPUV3_CHANNEL_MEM_BG_ASYNC_ALPHA 52
162 #define IPUV3_NUM_CHANNELS 64
163
164 static inline int ipu_channel_alpha_channel(int ch_num)
165 {
166 switch (ch_num) {
167 case IPUV3_CHANNEL_G_MEM_IC_PRP_VF:
168 return IPUV3_CHANNEL_G_MEM_IC_PRP_VF_ALPHA;
169 case IPUV3_CHANNEL_G_MEM_IC_PP:
170 return IPUV3_CHANNEL_G_MEM_IC_PP_ALPHA;
171 case IPUV3_CHANNEL_MEM_FG_SYNC:
172 return IPUV3_CHANNEL_MEM_FG_SYNC_ALPHA;
173 case IPUV3_CHANNEL_MEM_FG_ASYNC:
174 return IPUV3_CHANNEL_MEM_FG_ASYNC_ALPHA;
175 case IPUV3_CHANNEL_MEM_BG_SYNC:
176 return IPUV3_CHANNEL_MEM_BG_SYNC_ALPHA;
177 case IPUV3_CHANNEL_MEM_BG_ASYNC:
178 return IPUV3_CHANNEL_MEM_BG_ASYNC_ALPHA;
179 case IPUV3_CHANNEL_MEM_VDI_PLANE1_COMB:
180 return IPUV3_CHANNEL_MEM_VDI_PLANE1_COMB_ALPHA;
181 default:
182 return -EINVAL;
183 }
184 }
185
186 int ipu_map_irq(struct ipu_soc *ipu, int irq);
187 int ipu_idmac_channel_irq(struct ipu_soc *ipu, struct ipuv3_channel *channel,
188 enum ipu_channel_irq irq);
189
190 #define IPU_IRQ_DP_SF_START (448 + 2)
191 #define IPU_IRQ_DP_SF_END (448 + 3)
192 #define IPU_IRQ_BG_SF_END IPU_IRQ_DP_SF_END,
193 #define IPU_IRQ_DC_FC_0 (448 + 8)
194 #define IPU_IRQ_DC_FC_1 (448 + 9)
195 #define IPU_IRQ_DC_FC_2 (448 + 10)
196 #define IPU_IRQ_DC_FC_3 (448 + 11)
197 #define IPU_IRQ_DC_FC_4 (448 + 12)
198 #define IPU_IRQ_DC_FC_6 (448 + 13)
199 #define IPU_IRQ_VSYNC_PRE_0 (448 + 14)
200 #define IPU_IRQ_VSYNC_PRE_1 (448 + 15)
201
202 /*
203 * IPU Common functions
204 */
205 int ipu_get_num(struct ipu_soc *ipu);
206 void ipu_set_csi_src_mux(struct ipu_soc *ipu, int csi_id, bool mipi_csi2);
207 void ipu_set_ic_src_mux(struct ipu_soc *ipu, int csi_id, bool vdi);
208 void ipu_dump(struct ipu_soc *ipu);
209
210 /*
211 * IPU Image DMA Controller (idmac) functions
212 */
213 struct ipuv3_channel *ipu_idmac_get(struct ipu_soc *ipu, unsigned channel);
214 void ipu_idmac_put(struct ipuv3_channel *);
215
216 int ipu_idmac_enable_channel(struct ipuv3_channel *channel);
217 int ipu_idmac_disable_channel(struct ipuv3_channel *channel);
218 void ipu_idmac_enable_watermark(struct ipuv3_channel *channel, bool enable);
219 int ipu_idmac_lock_enable(struct ipuv3_channel *channel, int num_bursts);
220 int ipu_idmac_wait_busy(struct ipuv3_channel *channel, int ms);
221
222 void ipu_idmac_set_double_buffer(struct ipuv3_channel *channel,
223 bool doublebuffer);
224 int ipu_idmac_get_current_buffer(struct ipuv3_channel *channel);
225 bool ipu_idmac_buffer_is_ready(struct ipuv3_channel *channel, u32 buf_num);
226 void ipu_idmac_select_buffer(struct ipuv3_channel *channel, u32 buf_num);
227 void ipu_idmac_clear_buffer(struct ipuv3_channel *channel, u32 buf_num);
228 int ipu_fsu_link(struct ipu_soc *ipu, int src_ch, int sink_ch);
229 int ipu_fsu_unlink(struct ipu_soc *ipu, int src_ch, int sink_ch);
230 int ipu_idmac_link(struct ipuv3_channel *src, struct ipuv3_channel *sink);
231 int ipu_idmac_unlink(struct ipuv3_channel *src, struct ipuv3_channel *sink);
232
233 /*
234 * IPU Channel Parameter Memory (cpmem) functions
235 */
236 struct ipu_rgb {
237 struct fb_bitfield red;
238 struct fb_bitfield green;
239 struct fb_bitfield blue;
240 struct fb_bitfield transp;
241 int bits_per_pixel;
242 };
243
244 struct ipu_image {
245 struct v4l2_pix_format pix;
246 struct v4l2_rect rect;
247 dma_addr_t phys0;
248 dma_addr_t phys1;
249 };
250
251 void ipu_cpmem_zero(struct ipuv3_channel *ch);
252 void ipu_cpmem_set_resolution(struct ipuv3_channel *ch, int xres, int yres);
253 void ipu_cpmem_set_stride(struct ipuv3_channel *ch, int stride);
254 void ipu_cpmem_set_high_priority(struct ipuv3_channel *ch);
255 void ipu_cpmem_set_buffer(struct ipuv3_channel *ch, int bufnum, dma_addr_t buf);
256 void ipu_cpmem_set_uv_offset(struct ipuv3_channel *ch, u32 u_off, u32 v_off);
257 void ipu_cpmem_interlaced_scan(struct ipuv3_channel *ch, int stride);
258 void ipu_cpmem_set_axi_id(struct ipuv3_channel *ch, u32 id);
259 int ipu_cpmem_get_burstsize(struct ipuv3_channel *ch);
260 void ipu_cpmem_set_burstsize(struct ipuv3_channel *ch, int burstsize);
261 void ipu_cpmem_set_block_mode(struct ipuv3_channel *ch);
262 void ipu_cpmem_set_rotation(struct ipuv3_channel *ch,
263 enum ipu_rotate_mode rot);
264 int ipu_cpmem_set_format_rgb(struct ipuv3_channel *ch,
265 const struct ipu_rgb *rgb);
266 int ipu_cpmem_set_format_passthrough(struct ipuv3_channel *ch, int width);
267 void ipu_cpmem_set_yuv_interleaved(struct ipuv3_channel *ch, u32 pixel_format);
268 void ipu_cpmem_set_yuv_planar_full(struct ipuv3_channel *ch,
269 unsigned int uv_stride,
270 unsigned int u_offset,
271 unsigned int v_offset);
272 int ipu_cpmem_set_fmt(struct ipuv3_channel *ch, u32 drm_fourcc);
273 int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image);
274 void ipu_cpmem_dump(struct ipuv3_channel *ch);
275
276 /*
277 * IPU Display Controller (dc) functions
278 */
279 struct ipu_dc;
280 struct ipu_di;
281 struct ipu_dc *ipu_dc_get(struct ipu_soc *ipu, int channel);
282 void ipu_dc_put(struct ipu_dc *dc);
283 int ipu_dc_init_sync(struct ipu_dc *dc, struct ipu_di *di, bool interlaced,
284 u32 pixel_fmt, u32 width);
285 void ipu_dc_enable(struct ipu_soc *ipu);
286 void ipu_dc_enable_channel(struct ipu_dc *dc);
287 void ipu_dc_disable_channel(struct ipu_dc *dc);
288 void ipu_dc_disable(struct ipu_soc *ipu);
289
290 /*
291 * IPU Display Interface (di) functions
292 */
293 struct ipu_di *ipu_di_get(struct ipu_soc *ipu, int disp);
294 void ipu_di_put(struct ipu_di *);
295 int ipu_di_disable(struct ipu_di *);
296 int ipu_di_enable(struct ipu_di *);
297 int ipu_di_get_num(struct ipu_di *);
298 int ipu_di_adjust_videomode(struct ipu_di *di, struct videomode *mode);
299 int ipu_di_init_sync_panel(struct ipu_di *, struct ipu_di_signal_cfg *sig);
300
301 /*
302 * IPU Display Multi FIFO Controller (dmfc) functions
303 */
304 struct dmfc_channel;
305 int ipu_dmfc_enable_channel(struct dmfc_channel *dmfc);
306 void ipu_dmfc_disable_channel(struct dmfc_channel *dmfc);
307 void ipu_dmfc_config_wait4eot(struct dmfc_channel *dmfc, int width);
308 struct dmfc_channel *ipu_dmfc_get(struct ipu_soc *ipu, int ipuv3_channel);
309 void ipu_dmfc_put(struct dmfc_channel *dmfc);
310
311 /*
312 * IPU Display Processor (dp) functions
313 */
314 #define IPU_DP_FLOW_SYNC_BG 0
315 #define IPU_DP_FLOW_SYNC_FG 1
316 #define IPU_DP_FLOW_ASYNC0_BG 2
317 #define IPU_DP_FLOW_ASYNC0_FG 3
318 #define IPU_DP_FLOW_ASYNC1_BG 4
319 #define IPU_DP_FLOW_ASYNC1_FG 5
320
321 struct ipu_dp *ipu_dp_get(struct ipu_soc *ipu, unsigned int flow);
322 void ipu_dp_put(struct ipu_dp *);
323 int ipu_dp_enable(struct ipu_soc *ipu);
324 int ipu_dp_enable_channel(struct ipu_dp *dp);
325 void ipu_dp_disable_channel(struct ipu_dp *dp, bool sync);
326 void ipu_dp_disable(struct ipu_soc *ipu);
327 int ipu_dp_setup_channel(struct ipu_dp *dp,
328 enum ipu_color_space in, enum ipu_color_space out);
329 int ipu_dp_set_window_pos(struct ipu_dp *, u16 x_pos, u16 y_pos);
330 int ipu_dp_set_global_alpha(struct ipu_dp *dp, bool enable, u8 alpha,
331 bool bg_chan);
332
333 /*
334 * IPU Prefetch Resolve Gasket (prg) functions
335 */
336 int ipu_prg_max_active_channels(void);
337 bool ipu_prg_present(struct ipu_soc *ipu);
338 bool ipu_prg_format_supported(struct ipu_soc *ipu, uint32_t format,
339 uint64_t modifier);
340 int ipu_prg_enable(struct ipu_soc *ipu);
341 void ipu_prg_disable(struct ipu_soc *ipu);
342 void ipu_prg_channel_disable(struct ipuv3_channel *ipu_chan);
343 int ipu_prg_channel_configure(struct ipuv3_channel *ipu_chan,
344 unsigned int axi_id, unsigned int width,
345 unsigned int height, unsigned int stride,
346 u32 format, unsigned long *eba);
347
348 /*
349 * IPU CMOS Sensor Interface (csi) functions
350 */
351 struct ipu_csi;
352 int ipu_csi_init_interface(struct ipu_csi *csi,
353 struct v4l2_mbus_config *mbus_cfg,
354 struct v4l2_mbus_framefmt *mbus_fmt);
355 bool ipu_csi_is_interlaced(struct ipu_csi *csi);
356 void ipu_csi_get_window(struct ipu_csi *csi, struct v4l2_rect *w);
357 void ipu_csi_set_window(struct ipu_csi *csi, struct v4l2_rect *w);
358 void ipu_csi_set_downsize(struct ipu_csi *csi, bool horiz, bool vert);
359 void ipu_csi_set_test_generator(struct ipu_csi *csi, bool active,
360 u32 r_value, u32 g_value, u32 b_value,
361 u32 pix_clk);
362 int ipu_csi_set_mipi_datatype(struct ipu_csi *csi, u32 vc,
363 struct v4l2_mbus_framefmt *mbus_fmt);
364 int ipu_csi_set_skip_smfc(struct ipu_csi *csi, u32 skip,
365 u32 max_ratio, u32 id);
366 int ipu_csi_set_dest(struct ipu_csi *csi, enum ipu_csi_dest csi_dest);
367 int ipu_csi_enable(struct ipu_csi *csi);
368 int ipu_csi_disable(struct ipu_csi *csi);
369 struct ipu_csi *ipu_csi_get(struct ipu_soc *ipu, int id);
370 void ipu_csi_put(struct ipu_csi *csi);
371 void ipu_csi_dump(struct ipu_csi *csi);
372
373 /*
374 * IPU Image Converter (ic) functions
375 */
376 enum ipu_ic_task {
377 IC_TASK_ENCODER,
378 IC_TASK_VIEWFINDER,
379 IC_TASK_POST_PROCESSOR,
380 IC_NUM_TASKS,
381 };
382
383 struct ipu_ic;
384 int ipu_ic_task_init(struct ipu_ic *ic,
385 int in_width, int in_height,
386 int out_width, int out_height,
387 enum ipu_color_space in_cs,
388 enum ipu_color_space out_cs);
389 int ipu_ic_task_graphics_init(struct ipu_ic *ic,
390 enum ipu_color_space in_g_cs,
391 bool galpha_en, u32 galpha,
392 bool colorkey_en, u32 colorkey);
393 void ipu_ic_task_enable(struct ipu_ic *ic);
394 void ipu_ic_task_disable(struct ipu_ic *ic);
395 int ipu_ic_task_idma_init(struct ipu_ic *ic, struct ipuv3_channel *channel,
396 u32 width, u32 height, int burst_size,
397 enum ipu_rotate_mode rot);
398 int ipu_ic_enable(struct ipu_ic *ic);
399 int ipu_ic_disable(struct ipu_ic *ic);
400 struct ipu_ic *ipu_ic_get(struct ipu_soc *ipu, enum ipu_ic_task task);
401 void ipu_ic_put(struct ipu_ic *ic);
402 void ipu_ic_dump(struct ipu_ic *ic);
403
404 /*
405 * IPU Video De-Interlacer (vdi) functions
406 */
407 struct ipu_vdi;
408 void ipu_vdi_set_field_order(struct ipu_vdi *vdi, v4l2_std_id std, u32 field);
409 void ipu_vdi_set_motion(struct ipu_vdi *vdi, enum ipu_motion_sel motion_sel);
410 void ipu_vdi_setup(struct ipu_vdi *vdi, u32 code, int xres, int yres);
411 void ipu_vdi_unsetup(struct ipu_vdi *vdi);
412 int ipu_vdi_enable(struct ipu_vdi *vdi);
413 int ipu_vdi_disable(struct ipu_vdi *vdi);
414 struct ipu_vdi *ipu_vdi_get(struct ipu_soc *ipu);
415 void ipu_vdi_put(struct ipu_vdi *vdi);
416
417 /*
418 * IPU Sensor Multiple FIFO Controller (SMFC) functions
419 */
420 struct ipu_smfc *ipu_smfc_get(struct ipu_soc *ipu, unsigned int chno);
421 void ipu_smfc_put(struct ipu_smfc *smfc);
422 int ipu_smfc_enable(struct ipu_smfc *smfc);
423 int ipu_smfc_disable(struct ipu_smfc *smfc);
424 int ipu_smfc_map_channel(struct ipu_smfc *smfc, int csi_id, int mipi_id);
425 int ipu_smfc_set_burstsize(struct ipu_smfc *smfc, int burstsize);
426 int ipu_smfc_set_watermark(struct ipu_smfc *smfc, u32 set_level, u32 clr_level);
427
428 enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc);
429 enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat);
430 enum ipu_color_space ipu_mbus_code_to_colorspace(u32 mbus_code);
431 int ipu_stride_to_bytes(u32 pixel_stride, u32 pixelformat);
432 bool ipu_pixelformat_is_planar(u32 pixelformat);
433 int ipu_degrees_to_rot_mode(enum ipu_rotate_mode *mode, int degrees,
434 bool hflip, bool vflip);
435 int ipu_rot_mode_to_degrees(int *degrees, enum ipu_rotate_mode mode,
436 bool hflip, bool vflip);
437
438 struct ipu_client_platformdata {
439 int csi;
440 int di;
441 int dc;
442 int dp;
443 int dma[2];
444 struct device_node *of_node;
445 };
446
447 #endif /* __DRM_IPU_H__ */