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Merge remote-tracking branch 'asoc/topic/omap' into asoc-next
[deliverable/linux.git] / drivers / gpu / drm / sti / sti_hqvdp.c
1 /*
2 * Copyright (C) STMicroelectronics SA 2014
3 * Authors: Fabien Dessenne <fabien.dessenne@st.com> for STMicroelectronics.
4 * License terms: GNU General Public License (GPL), version 2
5 */
6
7 #include <linux/component.h>
8 #include <linux/firmware.h>
9 #include <linux/reset.h>
10
11 #include <drm/drm_atomic.h>
12 #include <drm/drm_fb_cma_helper.h>
13 #include <drm/drm_gem_cma_helper.h>
14
15 #include "sti_compositor.h"
16 #include "sti_hqvdp_lut.h"
17 #include "sti_plane.h"
18 #include "sti_vtg.h"
19
20 /* Firmware name */
21 #define HQVDP_FMW_NAME "hqvdp-stih407.bin"
22
23 /* Regs address */
24 #define HQVDP_DMEM 0x00000000 /* 0x00000000 */
25 #define HQVDP_PMEM 0x00040000 /* 0x00040000 */
26 #define HQVDP_RD_PLUG 0x000E0000 /* 0x000E0000 */
27 #define HQVDP_RD_PLUG_CONTROL (HQVDP_RD_PLUG + 0x1000) /* 0x000E1000 */
28 #define HQVDP_RD_PLUG_PAGE_SIZE (HQVDP_RD_PLUG + 0x1004) /* 0x000E1004 */
29 #define HQVDP_RD_PLUG_MIN_OPC (HQVDP_RD_PLUG + 0x1008) /* 0x000E1008 */
30 #define HQVDP_RD_PLUG_MAX_OPC (HQVDP_RD_PLUG + 0x100C) /* 0x000E100C */
31 #define HQVDP_RD_PLUG_MAX_CHK (HQVDP_RD_PLUG + 0x1010) /* 0x000E1010 */
32 #define HQVDP_RD_PLUG_MAX_MSG (HQVDP_RD_PLUG + 0x1014) /* 0x000E1014 */
33 #define HQVDP_RD_PLUG_MIN_SPACE (HQVDP_RD_PLUG + 0x1018) /* 0x000E1018 */
34 #define HQVDP_WR_PLUG 0x000E2000 /* 0x000E2000 */
35 #define HQVDP_WR_PLUG_CONTROL (HQVDP_WR_PLUG + 0x1000) /* 0x000E3000 */
36 #define HQVDP_WR_PLUG_PAGE_SIZE (HQVDP_WR_PLUG + 0x1004) /* 0x000E3004 */
37 #define HQVDP_WR_PLUG_MIN_OPC (HQVDP_WR_PLUG + 0x1008) /* 0x000E3008 */
38 #define HQVDP_WR_PLUG_MAX_OPC (HQVDP_WR_PLUG + 0x100C) /* 0x000E300C */
39 #define HQVDP_WR_PLUG_MAX_CHK (HQVDP_WR_PLUG + 0x1010) /* 0x000E3010 */
40 #define HQVDP_WR_PLUG_MAX_MSG (HQVDP_WR_PLUG + 0x1014) /* 0x000E3014 */
41 #define HQVDP_WR_PLUG_MIN_SPACE (HQVDP_WR_PLUG + 0x1018) /* 0x000E3018 */
42 #define HQVDP_MBX 0x000E4000 /* 0x000E4000 */
43 #define HQVDP_MBX_IRQ_TO_XP70 (HQVDP_MBX + 0x0000) /* 0x000E4000 */
44 #define HQVDP_MBX_INFO_HOST (HQVDP_MBX + 0x0004) /* 0x000E4004 */
45 #define HQVDP_MBX_IRQ_TO_HOST (HQVDP_MBX + 0x0008) /* 0x000E4008 */
46 #define HQVDP_MBX_INFO_XP70 (HQVDP_MBX + 0x000C) /* 0x000E400C */
47 #define HQVDP_MBX_SW_RESET_CTRL (HQVDP_MBX + 0x0010) /* 0x000E4010 */
48 #define HQVDP_MBX_STARTUP_CTRL1 (HQVDP_MBX + 0x0014) /* 0x000E4014 */
49 #define HQVDP_MBX_STARTUP_CTRL2 (HQVDP_MBX + 0x0018) /* 0x000E4018 */
50 #define HQVDP_MBX_GP_STATUS (HQVDP_MBX + 0x001C) /* 0x000E401C */
51 #define HQVDP_MBX_NEXT_CMD (HQVDP_MBX + 0x0020) /* 0x000E4020 */
52 #define HQVDP_MBX_CURRENT_CMD (HQVDP_MBX + 0x0024) /* 0x000E4024 */
53 #define HQVDP_MBX_SOFT_VSYNC (HQVDP_MBX + 0x0028) /* 0x000E4028 */
54
55 /* Plugs config */
56 #define PLUG_CONTROL_ENABLE 0x00000001
57 #define PLUG_PAGE_SIZE_256 0x00000002
58 #define PLUG_MIN_OPC_8 0x00000003
59 #define PLUG_MAX_OPC_64 0x00000006
60 #define PLUG_MAX_CHK_2X 0x00000001
61 #define PLUG_MAX_MSG_1X 0x00000000
62 #define PLUG_MIN_SPACE_1 0x00000000
63
64 /* SW reset CTRL */
65 #define SW_RESET_CTRL_FULL BIT(0)
66 #define SW_RESET_CTRL_CORE BIT(1)
67
68 /* Startup ctrl 1 */
69 #define STARTUP_CTRL1_RST_DONE BIT(0)
70 #define STARTUP_CTRL1_AUTH_IDLE BIT(2)
71
72 /* Startup ctrl 2 */
73 #define STARTUP_CTRL2_FETCH_EN BIT(1)
74
75 /* Info xP70 */
76 #define INFO_XP70_FW_READY BIT(15)
77 #define INFO_XP70_FW_PROCESSING BIT(14)
78 #define INFO_XP70_FW_INITQUEUES BIT(13)
79
80 /* SOFT_VSYNC */
81 #define SOFT_VSYNC_HW 0x00000000
82 #define SOFT_VSYNC_SW_CMD 0x00000001
83 #define SOFT_VSYNC_SW_CTRL_IRQ 0x00000003
84
85 /* Reset & boot poll config */
86 #define POLL_MAX_ATTEMPT 50
87 #define POLL_DELAY_MS 20
88
89 #define SCALE_FACTOR 8192
90 #define SCALE_MAX_FOR_LEG_LUT_F 4096
91 #define SCALE_MAX_FOR_LEG_LUT_E 4915
92 #define SCALE_MAX_FOR_LEG_LUT_D 6654
93 #define SCALE_MAX_FOR_LEG_LUT_C 8192
94
95 enum sti_hvsrc_orient {
96 HVSRC_HORI,
97 HVSRC_VERT
98 };
99
100 /* Command structures */
101 struct sti_hqvdp_top {
102 u32 config;
103 u32 mem_format;
104 u32 current_luma;
105 u32 current_enh_luma;
106 u32 current_right_luma;
107 u32 current_enh_right_luma;
108 u32 current_chroma;
109 u32 current_enh_chroma;
110 u32 current_right_chroma;
111 u32 current_enh_right_chroma;
112 u32 output_luma;
113 u32 output_chroma;
114 u32 luma_src_pitch;
115 u32 luma_enh_src_pitch;
116 u32 luma_right_src_pitch;
117 u32 luma_enh_right_src_pitch;
118 u32 chroma_src_pitch;
119 u32 chroma_enh_src_pitch;
120 u32 chroma_right_src_pitch;
121 u32 chroma_enh_right_src_pitch;
122 u32 luma_processed_pitch;
123 u32 chroma_processed_pitch;
124 u32 input_frame_size;
125 u32 input_viewport_ori;
126 u32 input_viewport_ori_right;
127 u32 input_viewport_size;
128 u32 left_view_border_width;
129 u32 right_view_border_width;
130 u32 left_view_3d_offset_width;
131 u32 right_view_3d_offset_width;
132 u32 side_stripe_color;
133 u32 crc_reset_ctrl;
134 };
135
136 /* Configs for interlaced : no IT, no pass thru, 3 fields */
137 #define TOP_CONFIG_INTER_BTM 0x00000000
138 #define TOP_CONFIG_INTER_TOP 0x00000002
139
140 /* Config for progressive : no IT, no pass thru, 3 fields */
141 #define TOP_CONFIG_PROGRESSIVE 0x00000001
142
143 /* Default MemFormat: in=420_raster_dual out=444_raster;opaque Mem2Tv mode */
144 #define TOP_MEM_FORMAT_DFLT 0x00018060
145
146 /* Min/Max size */
147 #define MAX_WIDTH 0x1FFF
148 #define MAX_HEIGHT 0x0FFF
149 #define MIN_WIDTH 0x0030
150 #define MIN_HEIGHT 0x0010
151
152 struct sti_hqvdp_vc1re {
153 u32 ctrl_prv_csdi;
154 u32 ctrl_cur_csdi;
155 u32 ctrl_nxt_csdi;
156 u32 ctrl_cur_fmd;
157 u32 ctrl_nxt_fmd;
158 };
159
160 struct sti_hqvdp_fmd {
161 u32 config;
162 u32 viewport_ori;
163 u32 viewport_size;
164 u32 next_next_luma;
165 u32 next_next_right_luma;
166 u32 next_next_next_luma;
167 u32 next_next_next_right_luma;
168 u32 threshold_scd;
169 u32 threshold_rfd;
170 u32 threshold_move;
171 u32 threshold_cfd;
172 };
173
174 struct sti_hqvdp_csdi {
175 u32 config;
176 u32 config2;
177 u32 dcdi_config;
178 u32 prev_luma;
179 u32 prev_enh_luma;
180 u32 prev_right_luma;
181 u32 prev_enh_right_luma;
182 u32 next_luma;
183 u32 next_enh_luma;
184 u32 next_right_luma;
185 u32 next_enh_right_luma;
186 u32 prev_chroma;
187 u32 prev_enh_chroma;
188 u32 prev_right_chroma;
189 u32 prev_enh_right_chroma;
190 u32 next_chroma;
191 u32 next_enh_chroma;
192 u32 next_right_chroma;
193 u32 next_enh_right_chroma;
194 u32 prev_motion;
195 u32 prev_right_motion;
196 u32 cur_motion;
197 u32 cur_right_motion;
198 u32 next_motion;
199 u32 next_right_motion;
200 };
201
202 /* Config for progressive: by pass */
203 #define CSDI_CONFIG_PROG 0x00000000
204 /* Config for directional deinterlacing without motion */
205 #define CSDI_CONFIG_INTER_DIR 0x00000016
206 /* Additional configs for fader, blender, motion,... deinterlace algorithms */
207 #define CSDI_CONFIG2_DFLT 0x000001B3
208 #define CSDI_DCDI_CONFIG_DFLT 0x00203803
209
210 struct sti_hqvdp_hvsrc {
211 u32 hor_panoramic_ctrl;
212 u32 output_picture_size;
213 u32 init_horizontal;
214 u32 init_vertical;
215 u32 param_ctrl;
216 u32 yh_coef[NB_COEF];
217 u32 ch_coef[NB_COEF];
218 u32 yv_coef[NB_COEF];
219 u32 cv_coef[NB_COEF];
220 u32 hori_shift;
221 u32 vert_shift;
222 };
223
224 /* Default ParamCtrl: all controls enabled */
225 #define HVSRC_PARAM_CTRL_DFLT 0xFFFFFFFF
226
227 struct sti_hqvdp_iqi {
228 u32 config;
229 u32 demo_wind_size;
230 u32 pk_config;
231 u32 coeff0_coeff1;
232 u32 coeff2_coeff3;
233 u32 coeff4;
234 u32 pk_lut;
235 u32 pk_gain;
236 u32 pk_coring_level;
237 u32 cti_config;
238 u32 le_config;
239 u32 le_lut[64];
240 u32 con_bri;
241 u32 sat_gain;
242 u32 pxf_conf;
243 u32 default_color;
244 };
245
246 /* Default Config : IQI bypassed */
247 #define IQI_CONFIG_DFLT 0x00000001
248 /* Default Contrast & Brightness gain = 256 */
249 #define IQI_CON_BRI_DFLT 0x00000100
250 /* Default Saturation gain = 256 */
251 #define IQI_SAT_GAIN_DFLT 0x00000100
252 /* Default PxfConf : P2I bypassed */
253 #define IQI_PXF_CONF_DFLT 0x00000001
254
255 struct sti_hqvdp_top_status {
256 u32 processing_time;
257 u32 input_y_crc;
258 u32 input_uv_crc;
259 };
260
261 struct sti_hqvdp_fmd_status {
262 u32 fmd_repeat_move_status;
263 u32 fmd_scene_count_status;
264 u32 cfd_sum;
265 u32 field_sum;
266 u32 next_y_fmd_crc;
267 u32 next_next_y_fmd_crc;
268 u32 next_next_next_y_fmd_crc;
269 };
270
271 struct sti_hqvdp_csdi_status {
272 u32 prev_y_csdi_crc;
273 u32 cur_y_csdi_crc;
274 u32 next_y_csdi_crc;
275 u32 prev_uv_csdi_crc;
276 u32 cur_uv_csdi_crc;
277 u32 next_uv_csdi_crc;
278 u32 y_csdi_crc;
279 u32 uv_csdi_crc;
280 u32 uv_cup_crc;
281 u32 mot_csdi_crc;
282 u32 mot_cur_csdi_crc;
283 u32 mot_prev_csdi_crc;
284 };
285
286 struct sti_hqvdp_hvsrc_status {
287 u32 y_hvsrc_crc;
288 u32 u_hvsrc_crc;
289 u32 v_hvsrc_crc;
290 };
291
292 struct sti_hqvdp_iqi_status {
293 u32 pxf_it_status;
294 u32 y_iqi_crc;
295 u32 u_iqi_crc;
296 u32 v_iqi_crc;
297 };
298
299 /* Main commands. We use 2 commands one being processed by the firmware, one
300 * ready to be fetched upon next Vsync*/
301 #define NB_VDP_CMD 2
302
303 struct sti_hqvdp_cmd {
304 struct sti_hqvdp_top top;
305 struct sti_hqvdp_vc1re vc1re;
306 struct sti_hqvdp_fmd fmd;
307 struct sti_hqvdp_csdi csdi;
308 struct sti_hqvdp_hvsrc hvsrc;
309 struct sti_hqvdp_iqi iqi;
310 struct sti_hqvdp_top_status top_status;
311 struct sti_hqvdp_fmd_status fmd_status;
312 struct sti_hqvdp_csdi_status csdi_status;
313 struct sti_hqvdp_hvsrc_status hvsrc_status;
314 struct sti_hqvdp_iqi_status iqi_status;
315 };
316
317 /*
318 * STI HQVDP structure
319 *
320 * @dev: driver device
321 * @drm_dev: the drm device
322 * @regs: registers
323 * @plane: plane structure for hqvdp it self
324 * @clk: IP clock
325 * @clk_pix_main: pix main clock
326 * @reset: reset control
327 * @vtg_nb: notifier to handle VTG Vsync
328 * @btm_field_pending: is there any bottom field (interlaced frame) to display
329 * @hqvdp_cmd: buffer of commands
330 * @hqvdp_cmd_paddr: physical address of hqvdp_cmd
331 * @vtg: vtg for main data path
332 * @xp70_initialized: true if xp70 is already initialized
333 */
334 struct sti_hqvdp {
335 struct device *dev;
336 struct drm_device *drm_dev;
337 void __iomem *regs;
338 struct sti_plane plane;
339 struct clk *clk;
340 struct clk *clk_pix_main;
341 struct reset_control *reset;
342 struct notifier_block vtg_nb;
343 bool btm_field_pending;
344 void *hqvdp_cmd;
345 u32 hqvdp_cmd_paddr;
346 struct sti_vtg *vtg;
347 bool xp70_initialized;
348 };
349
350 #define to_sti_hqvdp(x) container_of(x, struct sti_hqvdp, plane)
351
352 static const uint32_t hqvdp_supported_formats[] = {
353 DRM_FORMAT_NV12,
354 };
355
356 /**
357 * sti_hqvdp_get_free_cmd
358 * @hqvdp: hqvdp structure
359 *
360 * Look for a hqvdp_cmd that is not being used (or about to be used) by the FW.
361 *
362 * RETURNS:
363 * the offset of the command to be used.
364 * -1 in error cases
365 */
366 static int sti_hqvdp_get_free_cmd(struct sti_hqvdp *hqvdp)
367 {
368 u32 curr_cmd, next_cmd;
369 u32 cmd = hqvdp->hqvdp_cmd_paddr;
370 int i;
371
372 curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
373 next_cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD);
374
375 for (i = 0; i < NB_VDP_CMD; i++) {
376 if ((cmd != curr_cmd) && (cmd != next_cmd))
377 return i * sizeof(struct sti_hqvdp_cmd);
378 cmd += sizeof(struct sti_hqvdp_cmd);
379 }
380
381 return -1;
382 }
383
384 /**
385 * sti_hqvdp_get_curr_cmd
386 * @hqvdp: hqvdp structure
387 *
388 * Look for the hqvdp_cmd that is being used by the FW.
389 *
390 * RETURNS:
391 * the offset of the command to be used.
392 * -1 in error cases
393 */
394 static int sti_hqvdp_get_curr_cmd(struct sti_hqvdp *hqvdp)
395 {
396 u32 curr_cmd;
397 u32 cmd = hqvdp->hqvdp_cmd_paddr;
398 unsigned int i;
399
400 curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
401
402 for (i = 0; i < NB_VDP_CMD; i++) {
403 if (cmd == curr_cmd)
404 return i * sizeof(struct sti_hqvdp_cmd);
405
406 cmd += sizeof(struct sti_hqvdp_cmd);
407 }
408
409 return -1;
410 }
411
412 /**
413 * sti_hqvdp_get_next_cmd
414 * @hqvdp: hqvdp structure
415 *
416 * Look for the next hqvdp_cmd that will be used by the FW.
417 *
418 * RETURNS:
419 * the offset of the next command that will be used.
420 * -1 in error cases
421 */
422 static int sti_hqvdp_get_next_cmd(struct sti_hqvdp *hqvdp)
423 {
424 int next_cmd;
425 dma_addr_t cmd = hqvdp->hqvdp_cmd_paddr;
426 unsigned int i;
427
428 next_cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD);
429
430 for (i = 0; i < NB_VDP_CMD; i++) {
431 if (cmd == next_cmd)
432 return i * sizeof(struct sti_hqvdp_cmd);
433
434 cmd += sizeof(struct sti_hqvdp_cmd);
435 }
436
437 return -1;
438 }
439
440 #define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \
441 readl(hqvdp->regs + reg))
442
443 static const char *hqvdp_dbg_get_lut(u32 *coef)
444 {
445 if (!memcmp(coef, coef_lut_a_legacy, 16))
446 return "LUT A";
447 if (!memcmp(coef, coef_lut_b, 16))
448 return "LUT B";
449 if (!memcmp(coef, coef_lut_c_y_legacy, 16))
450 return "LUT C Y";
451 if (!memcmp(coef, coef_lut_c_c_legacy, 16))
452 return "LUT C C";
453 if (!memcmp(coef, coef_lut_d_y_legacy, 16))
454 return "LUT D Y";
455 if (!memcmp(coef, coef_lut_d_c_legacy, 16))
456 return "LUT D C";
457 if (!memcmp(coef, coef_lut_e_y_legacy, 16))
458 return "LUT E Y";
459 if (!memcmp(coef, coef_lut_e_c_legacy, 16))
460 return "LUT E C";
461 if (!memcmp(coef, coef_lut_f_y_legacy, 16))
462 return "LUT F Y";
463 if (!memcmp(coef, coef_lut_f_c_legacy, 16))
464 return "LUT F C";
465 return "<UNKNOWN>";
466 }
467
468 static void hqvdp_dbg_dump_cmd(struct seq_file *s, struct sti_hqvdp_cmd *c)
469 {
470 int src_w, src_h, dst_w, dst_h;
471
472 seq_puts(s, "\n\tTOP:");
473 seq_printf(s, "\n\t %-20s 0x%08X", "Config", c->top.config);
474 switch (c->top.config) {
475 case TOP_CONFIG_PROGRESSIVE:
476 seq_puts(s, "\tProgressive");
477 break;
478 case TOP_CONFIG_INTER_TOP:
479 seq_puts(s, "\tInterlaced, top field");
480 break;
481 case TOP_CONFIG_INTER_BTM:
482 seq_puts(s, "\tInterlaced, bottom field");
483 break;
484 default:
485 seq_puts(s, "\t<UNKNOWN>");
486 break;
487 }
488
489 seq_printf(s, "\n\t %-20s 0x%08X", "MemFormat", c->top.mem_format);
490 seq_printf(s, "\n\t %-20s 0x%08X", "CurrentY", c->top.current_luma);
491 seq_printf(s, "\n\t %-20s 0x%08X", "CurrentC", c->top.current_chroma);
492 seq_printf(s, "\n\t %-20s 0x%08X", "YSrcPitch", c->top.luma_src_pitch);
493 seq_printf(s, "\n\t %-20s 0x%08X", "CSrcPitch",
494 c->top.chroma_src_pitch);
495 seq_printf(s, "\n\t %-20s 0x%08X", "InputFrameSize",
496 c->top.input_frame_size);
497 seq_printf(s, "\t%dx%d",
498 c->top.input_frame_size & 0x0000FFFF,
499 c->top.input_frame_size >> 16);
500 seq_printf(s, "\n\t %-20s 0x%08X", "InputViewportSize",
501 c->top.input_viewport_size);
502 src_w = c->top.input_viewport_size & 0x0000FFFF;
503 src_h = c->top.input_viewport_size >> 16;
504 seq_printf(s, "\t%dx%d", src_w, src_h);
505
506 seq_puts(s, "\n\tHVSRC:");
507 seq_printf(s, "\n\t %-20s 0x%08X", "OutputPictureSize",
508 c->hvsrc.output_picture_size);
509 dst_w = c->hvsrc.output_picture_size & 0x0000FFFF;
510 dst_h = c->hvsrc.output_picture_size >> 16;
511 seq_printf(s, "\t%dx%d", dst_w, dst_h);
512 seq_printf(s, "\n\t %-20s 0x%08X", "ParamCtrl", c->hvsrc.param_ctrl);
513
514 seq_printf(s, "\n\t %-20s %s", "yh_coef",
515 hqvdp_dbg_get_lut(c->hvsrc.yh_coef));
516 seq_printf(s, "\n\t %-20s %s", "ch_coef",
517 hqvdp_dbg_get_lut(c->hvsrc.ch_coef));
518 seq_printf(s, "\n\t %-20s %s", "yv_coef",
519 hqvdp_dbg_get_lut(c->hvsrc.yv_coef));
520 seq_printf(s, "\n\t %-20s %s", "cv_coef",
521 hqvdp_dbg_get_lut(c->hvsrc.cv_coef));
522
523 seq_printf(s, "\n\t %-20s", "ScaleH");
524 if (dst_w > src_w)
525 seq_printf(s, " %d/1", dst_w / src_w);
526 else
527 seq_printf(s, " 1/%d", src_w / dst_w);
528
529 seq_printf(s, "\n\t %-20s", "tScaleV");
530 if (dst_h > src_h)
531 seq_printf(s, " %d/1", dst_h / src_h);
532 else
533 seq_printf(s, " 1/%d", src_h / dst_h);
534
535 seq_puts(s, "\n\tCSDI:");
536 seq_printf(s, "\n\t %-20s 0x%08X\t", "Config", c->csdi.config);
537 switch (c->csdi.config) {
538 case CSDI_CONFIG_PROG:
539 seq_puts(s, "Bypass");
540 break;
541 case CSDI_CONFIG_INTER_DIR:
542 seq_puts(s, "Deinterlace, directional");
543 break;
544 default:
545 seq_puts(s, "<UNKNOWN>");
546 break;
547 }
548
549 seq_printf(s, "\n\t %-20s 0x%08X", "Config2", c->csdi.config2);
550 seq_printf(s, "\n\t %-20s 0x%08X", "DcdiConfig", c->csdi.dcdi_config);
551 }
552
553 static int hqvdp_dbg_show(struct seq_file *s, void *data)
554 {
555 struct drm_info_node *node = s->private;
556 struct sti_hqvdp *hqvdp = (struct sti_hqvdp *)node->info_ent->data;
557 struct drm_device *dev = node->minor->dev;
558 int cmd, cmd_offset, infoxp70;
559 void *virt;
560 int ret;
561
562 ret = mutex_lock_interruptible(&dev->struct_mutex);
563 if (ret)
564 return ret;
565
566 seq_printf(s, "%s: (vaddr = 0x%p)",
567 sti_plane_to_str(&hqvdp->plane), hqvdp->regs);
568
569 DBGFS_DUMP(HQVDP_MBX_IRQ_TO_XP70);
570 DBGFS_DUMP(HQVDP_MBX_INFO_HOST);
571 DBGFS_DUMP(HQVDP_MBX_IRQ_TO_HOST);
572 DBGFS_DUMP(HQVDP_MBX_INFO_XP70);
573 infoxp70 = readl(hqvdp->regs + HQVDP_MBX_INFO_XP70);
574 seq_puts(s, "\tFirmware state: ");
575 if (infoxp70 & INFO_XP70_FW_READY)
576 seq_puts(s, "idle and ready");
577 else if (infoxp70 & INFO_XP70_FW_PROCESSING)
578 seq_puts(s, "processing a picture");
579 else if (infoxp70 & INFO_XP70_FW_INITQUEUES)
580 seq_puts(s, "programming queues");
581 else
582 seq_puts(s, "NOT READY");
583
584 DBGFS_DUMP(HQVDP_MBX_SW_RESET_CTRL);
585 DBGFS_DUMP(HQVDP_MBX_STARTUP_CTRL1);
586 if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1)
587 & STARTUP_CTRL1_RST_DONE)
588 seq_puts(s, "\tReset is done");
589 else
590 seq_puts(s, "\tReset is NOT done");
591 DBGFS_DUMP(HQVDP_MBX_STARTUP_CTRL2);
592 if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL2)
593 & STARTUP_CTRL2_FETCH_EN)
594 seq_puts(s, "\tFetch is enabled");
595 else
596 seq_puts(s, "\tFetch is NOT enabled");
597 DBGFS_DUMP(HQVDP_MBX_GP_STATUS);
598 DBGFS_DUMP(HQVDP_MBX_NEXT_CMD);
599 DBGFS_DUMP(HQVDP_MBX_CURRENT_CMD);
600 DBGFS_DUMP(HQVDP_MBX_SOFT_VSYNC);
601 if (!(readl(hqvdp->regs + HQVDP_MBX_SOFT_VSYNC) & 3))
602 seq_puts(s, "\tHW Vsync");
603 else
604 seq_puts(s, "\tSW Vsync ?!?!");
605
606 /* Last command */
607 cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
608 cmd_offset = sti_hqvdp_get_curr_cmd(hqvdp);
609 if (cmd_offset == -1) {
610 seq_puts(s, "\n\n Last command: unknown");
611 } else {
612 virt = hqvdp->hqvdp_cmd + cmd_offset;
613 seq_printf(s, "\n\n Last command: address @ 0x%x (0x%p)",
614 cmd, virt);
615 hqvdp_dbg_dump_cmd(s, (struct sti_hqvdp_cmd *)virt);
616 }
617
618 /* Next command */
619 cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD);
620 cmd_offset = sti_hqvdp_get_next_cmd(hqvdp);
621 if (cmd_offset == -1) {
622 seq_puts(s, "\n\n Next command: unknown");
623 } else {
624 virt = hqvdp->hqvdp_cmd + cmd_offset;
625 seq_printf(s, "\n\n Next command address: @ 0x%x (0x%p)",
626 cmd, virt);
627 hqvdp_dbg_dump_cmd(s, (struct sti_hqvdp_cmd *)virt);
628 }
629
630 seq_puts(s, "\n");
631
632 mutex_unlock(&dev->struct_mutex);
633 return 0;
634 }
635
636 static struct drm_info_list hqvdp_debugfs_files[] = {
637 { "hqvdp", hqvdp_dbg_show, 0, NULL },
638 };
639
640 static int hqvdp_debugfs_init(struct sti_hqvdp *hqvdp, struct drm_minor *minor)
641 {
642 unsigned int i;
643
644 for (i = 0; i < ARRAY_SIZE(hqvdp_debugfs_files); i++)
645 hqvdp_debugfs_files[i].data = hqvdp;
646
647 return drm_debugfs_create_files(hqvdp_debugfs_files,
648 ARRAY_SIZE(hqvdp_debugfs_files),
649 minor->debugfs_root, minor);
650 }
651
652 /**
653 * sti_hqvdp_update_hvsrc
654 * @orient: horizontal or vertical
655 * @scale: scaling/zoom factor
656 * @hvsrc: the structure containing the LUT coef
657 *
658 * Update the Y and C Lut coef, as well as the shift param
659 *
660 * RETURNS:
661 * None.
662 */
663 static void sti_hqvdp_update_hvsrc(enum sti_hvsrc_orient orient, int scale,
664 struct sti_hqvdp_hvsrc *hvsrc)
665 {
666 const int *coef_c, *coef_y;
667 int shift_c, shift_y;
668
669 /* Get the appropriate coef tables */
670 if (scale < SCALE_MAX_FOR_LEG_LUT_F) {
671 coef_y = coef_lut_f_y_legacy;
672 coef_c = coef_lut_f_c_legacy;
673 shift_y = SHIFT_LUT_F_Y_LEGACY;
674 shift_c = SHIFT_LUT_F_C_LEGACY;
675 } else if (scale < SCALE_MAX_FOR_LEG_LUT_E) {
676 coef_y = coef_lut_e_y_legacy;
677 coef_c = coef_lut_e_c_legacy;
678 shift_y = SHIFT_LUT_E_Y_LEGACY;
679 shift_c = SHIFT_LUT_E_C_LEGACY;
680 } else if (scale < SCALE_MAX_FOR_LEG_LUT_D) {
681 coef_y = coef_lut_d_y_legacy;
682 coef_c = coef_lut_d_c_legacy;
683 shift_y = SHIFT_LUT_D_Y_LEGACY;
684 shift_c = SHIFT_LUT_D_C_LEGACY;
685 } else if (scale < SCALE_MAX_FOR_LEG_LUT_C) {
686 coef_y = coef_lut_c_y_legacy;
687 coef_c = coef_lut_c_c_legacy;
688 shift_y = SHIFT_LUT_C_Y_LEGACY;
689 shift_c = SHIFT_LUT_C_C_LEGACY;
690 } else if (scale == SCALE_MAX_FOR_LEG_LUT_C) {
691 coef_y = coef_c = coef_lut_b;
692 shift_y = shift_c = SHIFT_LUT_B;
693 } else {
694 coef_y = coef_c = coef_lut_a_legacy;
695 shift_y = shift_c = SHIFT_LUT_A_LEGACY;
696 }
697
698 if (orient == HVSRC_HORI) {
699 hvsrc->hori_shift = (shift_c << 16) | shift_y;
700 memcpy(hvsrc->yh_coef, coef_y, sizeof(hvsrc->yh_coef));
701 memcpy(hvsrc->ch_coef, coef_c, sizeof(hvsrc->ch_coef));
702 } else {
703 hvsrc->vert_shift = (shift_c << 16) | shift_y;
704 memcpy(hvsrc->yv_coef, coef_y, sizeof(hvsrc->yv_coef));
705 memcpy(hvsrc->cv_coef, coef_c, sizeof(hvsrc->cv_coef));
706 }
707 }
708
709 /**
710 * sti_hqvdp_check_hw_scaling
711 * @hqvdp: hqvdp pointer
712 * @mode: display mode with timing constraints
713 * @src_w: source width
714 * @src_h: source height
715 * @dst_w: destination width
716 * @dst_h: destination height
717 *
718 * Check if the HW is able to perform the scaling request
719 * The firmware scaling limitation is "CEIL(1/Zy) <= FLOOR(LFW)" where:
720 * Zy = OutputHeight / InputHeight
721 * LFW = (Tx * IPClock) / (MaxNbCycles * Cp)
722 * Tx : Total video mode horizontal resolution
723 * IPClock : HQVDP IP clock (Mhz)
724 * MaxNbCycles: max(InputWidth, OutputWidth)
725 * Cp: Video mode pixel clock (Mhz)
726 *
727 * RETURNS:
728 * True if the HW can scale.
729 */
730 static bool sti_hqvdp_check_hw_scaling(struct sti_hqvdp *hqvdp,
731 struct drm_display_mode *mode,
732 int src_w, int src_h,
733 int dst_w, int dst_h)
734 {
735 unsigned long lfw;
736 unsigned int inv_zy;
737
738 lfw = mode->htotal * (clk_get_rate(hqvdp->clk) / 1000000);
739 lfw /= max(src_w, dst_w) * mode->clock / 1000;
740
741 inv_zy = DIV_ROUND_UP(src_h, dst_h);
742
743 return (inv_zy <= lfw) ? true : false;
744 }
745
746 /**
747 * sti_hqvdp_disable
748 * @hqvdp: hqvdp pointer
749 *
750 * Disables the HQVDP plane
751 */
752 static void sti_hqvdp_disable(struct sti_hqvdp *hqvdp)
753 {
754 int i;
755
756 DRM_DEBUG_DRIVER("%s\n", sti_plane_to_str(&hqvdp->plane));
757
758 /* Unregister VTG Vsync callback */
759 if (sti_vtg_unregister_client(hqvdp->vtg, &hqvdp->vtg_nb))
760 DRM_DEBUG_DRIVER("Warning: cannot unregister VTG notifier\n");
761
762 /* Set next cmd to NULL */
763 writel(0, hqvdp->regs + HQVDP_MBX_NEXT_CMD);
764
765 for (i = 0; i < POLL_MAX_ATTEMPT; i++) {
766 if (readl(hqvdp->regs + HQVDP_MBX_INFO_XP70)
767 & INFO_XP70_FW_READY)
768 break;
769 msleep(POLL_DELAY_MS);
770 }
771
772 /* VTG can stop now */
773 clk_disable_unprepare(hqvdp->clk_pix_main);
774
775 if (i == POLL_MAX_ATTEMPT)
776 DRM_ERROR("XP70 could not revert to idle\n");
777
778 hqvdp->plane.status = STI_PLANE_DISABLED;
779 }
780
781 /**
782 * sti_vdp_vtg_cb
783 * @nb: notifier block
784 * @evt: event message
785 * @data: private data
786 *
787 * Handle VTG Vsync event, display pending bottom field
788 *
789 * RETURNS:
790 * 0 on success.
791 */
792 int sti_hqvdp_vtg_cb(struct notifier_block *nb, unsigned long evt, void *data)
793 {
794 struct sti_hqvdp *hqvdp = container_of(nb, struct sti_hqvdp, vtg_nb);
795 int btm_cmd_offset, top_cmd_offest;
796 struct sti_hqvdp_cmd *btm_cmd, *top_cmd;
797
798 if ((evt != VTG_TOP_FIELD_EVENT) && (evt != VTG_BOTTOM_FIELD_EVENT)) {
799 DRM_DEBUG_DRIVER("Unknown event\n");
800 return 0;
801 }
802
803 if (hqvdp->plane.status == STI_PLANE_FLUSHING) {
804 /* disable need to be synchronize on vsync event */
805 DRM_DEBUG_DRIVER("Vsync event received => disable %s\n",
806 sti_plane_to_str(&hqvdp->plane));
807
808 sti_hqvdp_disable(hqvdp);
809 }
810
811 if (hqvdp->btm_field_pending) {
812 /* Create the btm field command from the current one */
813 btm_cmd_offset = sti_hqvdp_get_free_cmd(hqvdp);
814 top_cmd_offest = sti_hqvdp_get_curr_cmd(hqvdp);
815 if ((btm_cmd_offset == -1) || (top_cmd_offest == -1)) {
816 DRM_DEBUG_DRIVER("Warning: no cmd, will skip field\n");
817 return -EBUSY;
818 }
819
820 btm_cmd = hqvdp->hqvdp_cmd + btm_cmd_offset;
821 top_cmd = hqvdp->hqvdp_cmd + top_cmd_offest;
822
823 memcpy(btm_cmd, top_cmd, sizeof(*btm_cmd));
824
825 btm_cmd->top.config = TOP_CONFIG_INTER_BTM;
826 btm_cmd->top.current_luma +=
827 btm_cmd->top.luma_src_pitch / 2;
828 btm_cmd->top.current_chroma +=
829 btm_cmd->top.chroma_src_pitch / 2;
830
831 /* Post the command to mailbox */
832 writel(hqvdp->hqvdp_cmd_paddr + btm_cmd_offset,
833 hqvdp->regs + HQVDP_MBX_NEXT_CMD);
834
835 hqvdp->btm_field_pending = false;
836
837 dev_dbg(hqvdp->dev, "%s Posted command:0x%x\n",
838 __func__, hqvdp->hqvdp_cmd_paddr);
839
840 sti_plane_update_fps(&hqvdp->plane, false, true);
841 }
842
843 return 0;
844 }
845
846 static void sti_hqvdp_init(struct sti_hqvdp *hqvdp)
847 {
848 int size;
849 dma_addr_t dma_addr;
850
851 hqvdp->vtg_nb.notifier_call = sti_hqvdp_vtg_cb;
852
853 /* Allocate memory for the VDP commands */
854 size = NB_VDP_CMD * sizeof(struct sti_hqvdp_cmd);
855 hqvdp->hqvdp_cmd = dma_alloc_wc(hqvdp->dev, size,
856 &dma_addr,
857 GFP_KERNEL | GFP_DMA);
858 if (!hqvdp->hqvdp_cmd) {
859 DRM_ERROR("Failed to allocate memory for VDP cmd\n");
860 return;
861 }
862
863 hqvdp->hqvdp_cmd_paddr = (u32)dma_addr;
864 memset(hqvdp->hqvdp_cmd, 0, size);
865 }
866
867 static void sti_hqvdp_init_plugs(struct sti_hqvdp *hqvdp)
868 {
869 /* Configure Plugs (same for RD & WR) */
870 writel(PLUG_PAGE_SIZE_256, hqvdp->regs + HQVDP_RD_PLUG_PAGE_SIZE);
871 writel(PLUG_MIN_OPC_8, hqvdp->regs + HQVDP_RD_PLUG_MIN_OPC);
872 writel(PLUG_MAX_OPC_64, hqvdp->regs + HQVDP_RD_PLUG_MAX_OPC);
873 writel(PLUG_MAX_CHK_2X, hqvdp->regs + HQVDP_RD_PLUG_MAX_CHK);
874 writel(PLUG_MAX_MSG_1X, hqvdp->regs + HQVDP_RD_PLUG_MAX_MSG);
875 writel(PLUG_MIN_SPACE_1, hqvdp->regs + HQVDP_RD_PLUG_MIN_SPACE);
876 writel(PLUG_CONTROL_ENABLE, hqvdp->regs + HQVDP_RD_PLUG_CONTROL);
877
878 writel(PLUG_PAGE_SIZE_256, hqvdp->regs + HQVDP_WR_PLUG_PAGE_SIZE);
879 writel(PLUG_MIN_OPC_8, hqvdp->regs + HQVDP_WR_PLUG_MIN_OPC);
880 writel(PLUG_MAX_OPC_64, hqvdp->regs + HQVDP_WR_PLUG_MAX_OPC);
881 writel(PLUG_MAX_CHK_2X, hqvdp->regs + HQVDP_WR_PLUG_MAX_CHK);
882 writel(PLUG_MAX_MSG_1X, hqvdp->regs + HQVDP_WR_PLUG_MAX_MSG);
883 writel(PLUG_MIN_SPACE_1, hqvdp->regs + HQVDP_WR_PLUG_MIN_SPACE);
884 writel(PLUG_CONTROL_ENABLE, hqvdp->regs + HQVDP_WR_PLUG_CONTROL);
885 }
886
887 /**
888 * sti_hqvdp_start_xp70
889 * @hqvdp: hqvdp pointer
890 *
891 * Run the xP70 initialization sequence
892 */
893 static void sti_hqvdp_start_xp70(struct sti_hqvdp *hqvdp)
894 {
895 const struct firmware *firmware;
896 u32 *fw_rd_plug, *fw_wr_plug, *fw_pmem, *fw_dmem;
897 u8 *data;
898 int i;
899 struct fw_header {
900 int rd_size;
901 int wr_size;
902 int pmem_size;
903 int dmem_size;
904 } *header;
905
906 DRM_DEBUG_DRIVER("\n");
907
908 if (hqvdp->xp70_initialized) {
909 DRM_DEBUG_DRIVER("HQVDP XP70 already initialized\n");
910 return;
911 }
912
913 /* Request firmware */
914 if (request_firmware(&firmware, HQVDP_FMW_NAME, hqvdp->dev)) {
915 DRM_ERROR("Can't get HQVDP firmware\n");
916 return;
917 }
918
919 /* Check firmware parts */
920 if (!firmware) {
921 DRM_ERROR("Firmware not available\n");
922 return;
923 }
924
925 header = (struct fw_header *)firmware->data;
926 if (firmware->size < sizeof(*header)) {
927 DRM_ERROR("Invalid firmware size (%d)\n", firmware->size);
928 goto out;
929 }
930 if ((sizeof(*header) + header->rd_size + header->wr_size +
931 header->pmem_size + header->dmem_size) != firmware->size) {
932 DRM_ERROR("Invalid fmw structure (%d+%d+%d+%d+%d != %d)\n",
933 sizeof(*header), header->rd_size, header->wr_size,
934 header->pmem_size, header->dmem_size,
935 firmware->size);
936 goto out;
937 }
938
939 data = (u8 *)firmware->data;
940 data += sizeof(*header);
941 fw_rd_plug = (void *)data;
942 data += header->rd_size;
943 fw_wr_plug = (void *)data;
944 data += header->wr_size;
945 fw_pmem = (void *)data;
946 data += header->pmem_size;
947 fw_dmem = (void *)data;
948
949 /* Enable clock */
950 if (clk_prepare_enable(hqvdp->clk))
951 DRM_ERROR("Failed to prepare/enable HQVDP clk\n");
952
953 /* Reset */
954 writel(SW_RESET_CTRL_FULL, hqvdp->regs + HQVDP_MBX_SW_RESET_CTRL);
955
956 for (i = 0; i < POLL_MAX_ATTEMPT; i++) {
957 if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1)
958 & STARTUP_CTRL1_RST_DONE)
959 break;
960 msleep(POLL_DELAY_MS);
961 }
962 if (i == POLL_MAX_ATTEMPT) {
963 DRM_ERROR("Could not reset\n");
964 goto out;
965 }
966
967 /* Init Read & Write plugs */
968 for (i = 0; i < header->rd_size / 4; i++)
969 writel(fw_rd_plug[i], hqvdp->regs + HQVDP_RD_PLUG + i * 4);
970 for (i = 0; i < header->wr_size / 4; i++)
971 writel(fw_wr_plug[i], hqvdp->regs + HQVDP_WR_PLUG + i * 4);
972
973 sti_hqvdp_init_plugs(hqvdp);
974
975 /* Authorize Idle Mode */
976 writel(STARTUP_CTRL1_AUTH_IDLE, hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1);
977
978 /* Prevent VTG interruption during the boot */
979 writel(SOFT_VSYNC_SW_CTRL_IRQ, hqvdp->regs + HQVDP_MBX_SOFT_VSYNC);
980 writel(0, hqvdp->regs + HQVDP_MBX_NEXT_CMD);
981
982 /* Download PMEM & DMEM */
983 for (i = 0; i < header->pmem_size / 4; i++)
984 writel(fw_pmem[i], hqvdp->regs + HQVDP_PMEM + i * 4);
985 for (i = 0; i < header->dmem_size / 4; i++)
986 writel(fw_dmem[i], hqvdp->regs + HQVDP_DMEM + i * 4);
987
988 /* Enable fetch */
989 writel(STARTUP_CTRL2_FETCH_EN, hqvdp->regs + HQVDP_MBX_STARTUP_CTRL2);
990
991 /* Wait end of boot */
992 for (i = 0; i < POLL_MAX_ATTEMPT; i++) {
993 if (readl(hqvdp->regs + HQVDP_MBX_INFO_XP70)
994 & INFO_XP70_FW_READY)
995 break;
996 msleep(POLL_DELAY_MS);
997 }
998 if (i == POLL_MAX_ATTEMPT) {
999 DRM_ERROR("Could not boot\n");
1000 goto out;
1001 }
1002
1003 /* Launch Vsync */
1004 writel(SOFT_VSYNC_HW, hqvdp->regs + HQVDP_MBX_SOFT_VSYNC);
1005
1006 DRM_INFO("HQVDP XP70 initialized\n");
1007
1008 hqvdp->xp70_initialized = true;
1009
1010 out:
1011 release_firmware(firmware);
1012 }
1013
1014 static int sti_hqvdp_atomic_check(struct drm_plane *drm_plane,
1015 struct drm_plane_state *state)
1016 {
1017 struct sti_plane *plane = to_sti_plane(drm_plane);
1018 struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
1019 struct drm_crtc *crtc = state->crtc;
1020 struct drm_framebuffer *fb = state->fb;
1021 bool first_prepare = plane->status == STI_PLANE_DISABLED ? true : false;
1022 struct drm_crtc_state *crtc_state;
1023 struct drm_display_mode *mode;
1024 int dst_x, dst_y, dst_w, dst_h;
1025 int src_x, src_y, src_w, src_h;
1026
1027 /* no need for further checks if the plane is being disabled */
1028 if (!crtc || !fb)
1029 return 0;
1030
1031 crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
1032 mode = &crtc_state->mode;
1033 dst_x = state->crtc_x;
1034 dst_y = state->crtc_y;
1035 dst_w = clamp_val(state->crtc_w, 0, mode->crtc_hdisplay - dst_x);
1036 dst_h = clamp_val(state->crtc_h, 0, mode->crtc_vdisplay - dst_y);
1037 /* src_x are in 16.16 format */
1038 src_x = state->src_x >> 16;
1039 src_y = state->src_y >> 16;
1040 src_w = state->src_w >> 16;
1041 src_h = state->src_h >> 16;
1042
1043 if (!sti_hqvdp_check_hw_scaling(hqvdp, mode,
1044 src_w, src_h,
1045 dst_w, dst_h)) {
1046 DRM_ERROR("Scaling beyond HW capabilities\n");
1047 return -EINVAL;
1048 }
1049
1050 if (!drm_fb_cma_get_gem_obj(fb, 0)) {
1051 DRM_ERROR("Can't get CMA GEM object for fb\n");
1052 return -EINVAL;
1053 }
1054
1055 /*
1056 * Input / output size
1057 * Align to upper even value
1058 */
1059 dst_w = ALIGN(dst_w, 2);
1060 dst_h = ALIGN(dst_h, 2);
1061
1062 if ((src_w > MAX_WIDTH) || (src_w < MIN_WIDTH) ||
1063 (src_h > MAX_HEIGHT) || (src_h < MIN_HEIGHT) ||
1064 (dst_w > MAX_WIDTH) || (dst_w < MIN_WIDTH) ||
1065 (dst_h > MAX_HEIGHT) || (dst_h < MIN_HEIGHT)) {
1066 DRM_ERROR("Invalid in/out size %dx%d -> %dx%d\n",
1067 src_w, src_h,
1068 dst_w, dst_h);
1069 return -EINVAL;
1070 }
1071
1072 if (first_prepare) {
1073 /* Start HQVDP XP70 coprocessor */
1074 sti_hqvdp_start_xp70(hqvdp);
1075
1076 /* Prevent VTG shutdown */
1077 if (clk_prepare_enable(hqvdp->clk_pix_main)) {
1078 DRM_ERROR("Failed to prepare/enable pix main clk\n");
1079 return -EINVAL;
1080 }
1081
1082 /* Register VTG Vsync callback to handle bottom fields */
1083 if (sti_vtg_register_client(hqvdp->vtg,
1084 &hqvdp->vtg_nb,
1085 crtc)) {
1086 DRM_ERROR("Cannot register VTG notifier\n");
1087 return -EINVAL;
1088 }
1089 }
1090
1091 DRM_DEBUG_KMS("CRTC:%d (%s) drm plane:%d (%s)\n",
1092 crtc->base.id, sti_mixer_to_str(to_sti_mixer(crtc)),
1093 drm_plane->base.id, sti_plane_to_str(plane));
1094 DRM_DEBUG_KMS("%s dst=(%dx%d)@(%d,%d) - src=(%dx%d)@(%d,%d)\n",
1095 sti_plane_to_str(plane),
1096 dst_w, dst_h, dst_x, dst_y,
1097 src_w, src_h, src_x, src_y);
1098
1099 return 0;
1100 }
1101
1102 static void sti_hqvdp_atomic_update(struct drm_plane *drm_plane,
1103 struct drm_plane_state *oldstate)
1104 {
1105 struct drm_plane_state *state = drm_plane->state;
1106 struct sti_plane *plane = to_sti_plane(drm_plane);
1107 struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
1108 struct drm_crtc *crtc = state->crtc;
1109 struct drm_framebuffer *fb = state->fb;
1110 struct drm_display_mode *mode;
1111 int dst_x, dst_y, dst_w, dst_h;
1112 int src_x, src_y, src_w, src_h;
1113 struct drm_gem_cma_object *cma_obj;
1114 struct sti_hqvdp_cmd *cmd;
1115 int scale_h, scale_v;
1116 int cmd_offset;
1117
1118 if (!crtc || !fb)
1119 return;
1120
1121 mode = &crtc->mode;
1122 dst_x = state->crtc_x;
1123 dst_y = state->crtc_y;
1124 dst_w = clamp_val(state->crtc_w, 0, mode->crtc_hdisplay - dst_x);
1125 dst_h = clamp_val(state->crtc_h, 0, mode->crtc_vdisplay - dst_y);
1126 /* src_x are in 16.16 format */
1127 src_x = state->src_x >> 16;
1128 src_y = state->src_y >> 16;
1129 src_w = state->src_w >> 16;
1130 src_h = state->src_h >> 16;
1131
1132 cmd_offset = sti_hqvdp_get_free_cmd(hqvdp);
1133 if (cmd_offset == -1) {
1134 DRM_DEBUG_DRIVER("Warning: no cmd, will skip frame\n");
1135 return;
1136 }
1137 cmd = hqvdp->hqvdp_cmd + cmd_offset;
1138
1139 /* Static parameters, defaulting to progressive mode */
1140 cmd->top.config = TOP_CONFIG_PROGRESSIVE;
1141 cmd->top.mem_format = TOP_MEM_FORMAT_DFLT;
1142 cmd->hvsrc.param_ctrl = HVSRC_PARAM_CTRL_DFLT;
1143 cmd->csdi.config = CSDI_CONFIG_PROG;
1144
1145 /* VC1RE, FMD bypassed : keep everything set to 0
1146 * IQI/P2I bypassed */
1147 cmd->iqi.config = IQI_CONFIG_DFLT;
1148 cmd->iqi.con_bri = IQI_CON_BRI_DFLT;
1149 cmd->iqi.sat_gain = IQI_SAT_GAIN_DFLT;
1150 cmd->iqi.pxf_conf = IQI_PXF_CONF_DFLT;
1151
1152 cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
1153
1154 DRM_DEBUG_DRIVER("drm FB:%d format:%.4s phys@:0x%lx\n", fb->base.id,
1155 (char *)&fb->pixel_format,
1156 (unsigned long)cma_obj->paddr);
1157
1158 /* Buffer planes address */
1159 cmd->top.current_luma = (u32)cma_obj->paddr + fb->offsets[0];
1160 cmd->top.current_chroma = (u32)cma_obj->paddr + fb->offsets[1];
1161
1162 /* Pitches */
1163 cmd->top.luma_processed_pitch = fb->pitches[0];
1164 cmd->top.luma_src_pitch = fb->pitches[0];
1165 cmd->top.chroma_processed_pitch = fb->pitches[1];
1166 cmd->top.chroma_src_pitch = fb->pitches[1];
1167
1168 /* Input / output size
1169 * Align to upper even value */
1170 dst_w = ALIGN(dst_w, 2);
1171 dst_h = ALIGN(dst_h, 2);
1172
1173 cmd->top.input_viewport_size = src_h << 16 | src_w;
1174 cmd->top.input_frame_size = src_h << 16 | src_w;
1175 cmd->hvsrc.output_picture_size = dst_h << 16 | dst_w;
1176 cmd->top.input_viewport_ori = src_y << 16 | src_x;
1177
1178 /* Handle interlaced */
1179 if (fb->flags & DRM_MODE_FB_INTERLACED) {
1180 /* Top field to display */
1181 cmd->top.config = TOP_CONFIG_INTER_TOP;
1182
1183 /* Update pitches and vert size */
1184 cmd->top.input_frame_size = (src_h / 2) << 16 | src_w;
1185 cmd->top.luma_processed_pitch *= 2;
1186 cmd->top.luma_src_pitch *= 2;
1187 cmd->top.chroma_processed_pitch *= 2;
1188 cmd->top.chroma_src_pitch *= 2;
1189
1190 /* Enable directional deinterlacing processing */
1191 cmd->csdi.config = CSDI_CONFIG_INTER_DIR;
1192 cmd->csdi.config2 = CSDI_CONFIG2_DFLT;
1193 cmd->csdi.dcdi_config = CSDI_DCDI_CONFIG_DFLT;
1194 }
1195
1196 /* Update hvsrc lut coef */
1197 scale_h = SCALE_FACTOR * dst_w / src_w;
1198 sti_hqvdp_update_hvsrc(HVSRC_HORI, scale_h, &cmd->hvsrc);
1199
1200 scale_v = SCALE_FACTOR * dst_h / src_h;
1201 sti_hqvdp_update_hvsrc(HVSRC_VERT, scale_v, &cmd->hvsrc);
1202
1203 writel(hqvdp->hqvdp_cmd_paddr + cmd_offset,
1204 hqvdp->regs + HQVDP_MBX_NEXT_CMD);
1205
1206 /* Interlaced : get ready to display the bottom field at next Vsync */
1207 if (fb->flags & DRM_MODE_FB_INTERLACED)
1208 hqvdp->btm_field_pending = true;
1209
1210 dev_dbg(hqvdp->dev, "%s Posted command:0x%x\n",
1211 __func__, hqvdp->hqvdp_cmd_paddr + cmd_offset);
1212
1213 sti_plane_update_fps(plane, true, true);
1214
1215 plane->status = STI_PLANE_UPDATED;
1216 }
1217
1218 static void sti_hqvdp_atomic_disable(struct drm_plane *drm_plane,
1219 struct drm_plane_state *oldstate)
1220 {
1221 struct sti_plane *plane = to_sti_plane(drm_plane);
1222
1223 if (!drm_plane->crtc) {
1224 DRM_DEBUG_DRIVER("drm plane:%d not enabled\n",
1225 drm_plane->base.id);
1226 return;
1227 }
1228
1229 DRM_DEBUG_DRIVER("CRTC:%d (%s) drm plane:%d (%s)\n",
1230 drm_plane->crtc->base.id,
1231 sti_mixer_to_str(to_sti_mixer(drm_plane->crtc)),
1232 drm_plane->base.id, sti_plane_to_str(plane));
1233
1234 plane->status = STI_PLANE_DISABLING;
1235 }
1236
1237 static const struct drm_plane_helper_funcs sti_hqvdp_helpers_funcs = {
1238 .atomic_check = sti_hqvdp_atomic_check,
1239 .atomic_update = sti_hqvdp_atomic_update,
1240 .atomic_disable = sti_hqvdp_atomic_disable,
1241 };
1242
1243 static struct drm_plane *sti_hqvdp_create(struct drm_device *drm_dev,
1244 struct device *dev, int desc)
1245 {
1246 struct sti_hqvdp *hqvdp = dev_get_drvdata(dev);
1247 int res;
1248
1249 hqvdp->plane.desc = desc;
1250 hqvdp->plane.status = STI_PLANE_DISABLED;
1251
1252 sti_hqvdp_init(hqvdp);
1253
1254 res = drm_universal_plane_init(drm_dev, &hqvdp->plane.drm_plane, 1,
1255 &sti_plane_helpers_funcs,
1256 hqvdp_supported_formats,
1257 ARRAY_SIZE(hqvdp_supported_formats),
1258 DRM_PLANE_TYPE_OVERLAY, NULL);
1259 if (res) {
1260 DRM_ERROR("Failed to initialize universal plane\n");
1261 return NULL;
1262 }
1263
1264 drm_plane_helper_add(&hqvdp->plane.drm_plane, &sti_hqvdp_helpers_funcs);
1265
1266 sti_plane_init_property(&hqvdp->plane, DRM_PLANE_TYPE_OVERLAY);
1267
1268 if (hqvdp_debugfs_init(hqvdp, drm_dev->primary))
1269 DRM_ERROR("HQVDP debugfs setup failed\n");
1270
1271 return &hqvdp->plane.drm_plane;
1272 }
1273
1274 int sti_hqvdp_bind(struct device *dev, struct device *master, void *data)
1275 {
1276 struct sti_hqvdp *hqvdp = dev_get_drvdata(dev);
1277 struct drm_device *drm_dev = data;
1278 struct drm_plane *plane;
1279
1280 DRM_DEBUG_DRIVER("\n");
1281
1282 hqvdp->drm_dev = drm_dev;
1283
1284 /* Create HQVDP plane once xp70 is initialized */
1285 plane = sti_hqvdp_create(drm_dev, hqvdp->dev, STI_HQVDP_0);
1286 if (!plane)
1287 DRM_ERROR("Can't create HQVDP plane\n");
1288
1289 return 0;
1290 }
1291
1292 static void sti_hqvdp_unbind(struct device *dev,
1293 struct device *master, void *data)
1294 {
1295 /* do nothing */
1296 }
1297
1298 static const struct component_ops sti_hqvdp_ops = {
1299 .bind = sti_hqvdp_bind,
1300 .unbind = sti_hqvdp_unbind,
1301 };
1302
1303 static int sti_hqvdp_probe(struct platform_device *pdev)
1304 {
1305 struct device *dev = &pdev->dev;
1306 struct device_node *vtg_np;
1307 struct sti_hqvdp *hqvdp;
1308 struct resource *res;
1309
1310 DRM_DEBUG_DRIVER("\n");
1311
1312 hqvdp = devm_kzalloc(dev, sizeof(*hqvdp), GFP_KERNEL);
1313 if (!hqvdp) {
1314 DRM_ERROR("Failed to allocate HQVDP context\n");
1315 return -ENOMEM;
1316 }
1317
1318 hqvdp->dev = dev;
1319
1320 /* Get Memory resources */
1321 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1322 if (res == NULL) {
1323 DRM_ERROR("Get memory resource failed\n");
1324 return -ENXIO;
1325 }
1326 hqvdp->regs = devm_ioremap(dev, res->start, resource_size(res));
1327 if (hqvdp->regs == NULL) {
1328 DRM_ERROR("Register mapping failed\n");
1329 return -ENXIO;
1330 }
1331
1332 /* Get clock resources */
1333 hqvdp->clk = devm_clk_get(dev, "hqvdp");
1334 hqvdp->clk_pix_main = devm_clk_get(dev, "pix_main");
1335 if (IS_ERR(hqvdp->clk) || IS_ERR(hqvdp->clk_pix_main)) {
1336 DRM_ERROR("Cannot get clocks\n");
1337 return -ENXIO;
1338 }
1339
1340 /* Get reset resources */
1341 hqvdp->reset = devm_reset_control_get(dev, "hqvdp");
1342 if (!IS_ERR(hqvdp->reset))
1343 reset_control_deassert(hqvdp->reset);
1344
1345 vtg_np = of_parse_phandle(pdev->dev.of_node, "st,vtg", 0);
1346 if (vtg_np)
1347 hqvdp->vtg = of_vtg_find(vtg_np);
1348
1349 platform_set_drvdata(pdev, hqvdp);
1350
1351 return component_add(&pdev->dev, &sti_hqvdp_ops);
1352 }
1353
1354 static int sti_hqvdp_remove(struct platform_device *pdev)
1355 {
1356 component_del(&pdev->dev, &sti_hqvdp_ops);
1357 return 0;
1358 }
1359
1360 static struct of_device_id hqvdp_of_match[] = {
1361 { .compatible = "st,stih407-hqvdp", },
1362 { /* end node */ }
1363 };
1364 MODULE_DEVICE_TABLE(of, hqvdp_of_match);
1365
1366 struct platform_driver sti_hqvdp_driver = {
1367 .driver = {
1368 .name = "sti-hqvdp",
1369 .owner = THIS_MODULE,
1370 .of_match_table = hqvdp_of_match,
1371 },
1372 .probe = sti_hqvdp_probe,
1373 .remove = sti_hqvdp_remove,
1374 };
1375
1376 MODULE_AUTHOR("Benjamin Gaignard <benjamin.gaignard@st.com>");
1377 MODULE_DESCRIPTION("STMicroelectronics SoC DRM driver");
1378 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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