This source file includes following definitions.
- gsc_hw_set_sw_reset
- gsc_wait_reset
- gsc_hw_set_frm_done_irq_mask
- gsc_hw_set_gsc_irq_enable
- gsc_hw_set_input_buf_masking
- gsc_hw_set_output_buf_masking
- gsc_hw_set_input_addr
- gsc_hw_set_output_addr
- gsc_hw_set_input_path
- gsc_hw_set_in_size
- gsc_hw_set_in_image_rgb
- gsc_hw_set_in_image_format
- gsc_hw_set_output_path
- gsc_hw_set_out_size
- gsc_hw_set_out_image_rgb
- gsc_hw_set_out_image_format
- gsc_hw_set_prescaler
- gsc_hw_set_mainscaler
- gsc_hw_set_rotation
- gsc_hw_set_global_alpha
- gsc_hw_set_sfr_update
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8
9 #include <linux/io.h>
10 #include <linux/delay.h>
11
12 #include "gsc-core.h"
13
14 void gsc_hw_set_sw_reset(struct gsc_dev *dev)
15 {
16 writel(GSC_SW_RESET_SRESET, dev->regs + GSC_SW_RESET);
17 }
18
19 int gsc_wait_reset(struct gsc_dev *dev)
20 {
21 unsigned long end = jiffies + msecs_to_jiffies(50);
22 u32 cfg;
23
24 while (time_before(jiffies, end)) {
25 cfg = readl(dev->regs + GSC_SW_RESET);
26 if (!cfg)
27 return 0;
28 usleep_range(10, 20);
29 }
30
31 return -EBUSY;
32 }
33
34 void gsc_hw_set_frm_done_irq_mask(struct gsc_dev *dev, bool mask)
35 {
36 u32 cfg;
37
38 cfg = readl(dev->regs + GSC_IRQ);
39 if (mask)
40 cfg |= GSC_IRQ_FRMDONE_MASK;
41 else
42 cfg &= ~GSC_IRQ_FRMDONE_MASK;
43 writel(cfg, dev->regs + GSC_IRQ);
44 }
45
46 void gsc_hw_set_gsc_irq_enable(struct gsc_dev *dev, bool mask)
47 {
48 u32 cfg;
49
50 cfg = readl(dev->regs + GSC_IRQ);
51 if (mask)
52 cfg |= GSC_IRQ_ENABLE;
53 else
54 cfg &= ~GSC_IRQ_ENABLE;
55 writel(cfg, dev->regs + GSC_IRQ);
56 }
57
58 void gsc_hw_set_input_buf_masking(struct gsc_dev *dev, u32 shift,
59 bool enable)
60 {
61 u32 cfg = readl(dev->regs + GSC_IN_BASE_ADDR_Y_MASK);
62 u32 mask = 1 << shift;
63
64 cfg &= ~mask;
65 cfg |= enable << shift;
66
67 writel(cfg, dev->regs + GSC_IN_BASE_ADDR_Y_MASK);
68 writel(cfg, dev->regs + GSC_IN_BASE_ADDR_CB_MASK);
69 writel(cfg, dev->regs + GSC_IN_BASE_ADDR_CR_MASK);
70 }
71
72 void gsc_hw_set_output_buf_masking(struct gsc_dev *dev, u32 shift,
73 bool enable)
74 {
75 u32 cfg = readl(dev->regs + GSC_OUT_BASE_ADDR_Y_MASK);
76 u32 mask = 1 << shift;
77
78 cfg &= ~mask;
79 cfg |= enable << shift;
80
81 writel(cfg, dev->regs + GSC_OUT_BASE_ADDR_Y_MASK);
82 writel(cfg, dev->regs + GSC_OUT_BASE_ADDR_CB_MASK);
83 writel(cfg, dev->regs + GSC_OUT_BASE_ADDR_CR_MASK);
84 }
85
86 void gsc_hw_set_input_addr(struct gsc_dev *dev, struct gsc_addr *addr,
87 int index)
88 {
89 pr_debug("src_buf[%d]: %pad, cb: %pad, cr: %pad", index,
90 &addr->y, &addr->cb, &addr->cr);
91 writel(addr->y, dev->regs + GSC_IN_BASE_ADDR_Y(index));
92 writel(addr->cb, dev->regs + GSC_IN_BASE_ADDR_CB(index));
93 writel(addr->cr, dev->regs + GSC_IN_BASE_ADDR_CR(index));
94
95 }
96
97 void gsc_hw_set_output_addr(struct gsc_dev *dev,
98 struct gsc_addr *addr, int index)
99 {
100 pr_debug("dst_buf[%d]: %pad, cb: %pad, cr: %pad",
101 index, &addr->y, &addr->cb, &addr->cr);
102 writel(addr->y, dev->regs + GSC_OUT_BASE_ADDR_Y(index));
103 writel(addr->cb, dev->regs + GSC_OUT_BASE_ADDR_CB(index));
104 writel(addr->cr, dev->regs + GSC_OUT_BASE_ADDR_CR(index));
105 }
106
107 void gsc_hw_set_input_path(struct gsc_ctx *ctx)
108 {
109 struct gsc_dev *dev = ctx->gsc_dev;
110
111 u32 cfg = readl(dev->regs + GSC_IN_CON);
112 cfg &= ~(GSC_IN_PATH_MASK | GSC_IN_LOCAL_SEL_MASK);
113
114 if (ctx->in_path == GSC_DMA)
115 cfg |= GSC_IN_PATH_MEMORY;
116
117 writel(cfg, dev->regs + GSC_IN_CON);
118 }
119
120 void gsc_hw_set_in_size(struct gsc_ctx *ctx)
121 {
122 struct gsc_dev *dev = ctx->gsc_dev;
123 struct gsc_frame *frame = &ctx->s_frame;
124 u32 cfg;
125
126
127 cfg = GSC_SRCIMG_OFFSET_X(frame->crop.left);
128 cfg |= GSC_SRCIMG_OFFSET_Y(frame->crop.top);
129 writel(cfg, dev->regs + GSC_SRCIMG_OFFSET);
130
131
132 cfg = GSC_SRCIMG_WIDTH(frame->f_width);
133 cfg |= GSC_SRCIMG_HEIGHT(frame->f_height);
134 writel(cfg, dev->regs + GSC_SRCIMG_SIZE);
135
136
137 cfg = GSC_CROPPED_WIDTH(frame->crop.width);
138 cfg |= GSC_CROPPED_HEIGHT(frame->crop.height);
139 writel(cfg, dev->regs + GSC_CROPPED_SIZE);
140 }
141
142 void gsc_hw_set_in_image_rgb(struct gsc_ctx *ctx)
143 {
144 struct gsc_dev *dev = ctx->gsc_dev;
145 struct gsc_frame *frame = &ctx->s_frame;
146 u32 cfg;
147
148 cfg = readl(dev->regs + GSC_IN_CON);
149 if (frame->colorspace == V4L2_COLORSPACE_REC709)
150 cfg |= GSC_IN_RGB_HD_WIDE;
151 else
152 cfg |= GSC_IN_RGB_SD_WIDE;
153
154 if (frame->fmt->pixelformat == V4L2_PIX_FMT_RGB565X)
155 cfg |= GSC_IN_RGB565;
156 else if (frame->fmt->pixelformat == V4L2_PIX_FMT_RGB32)
157 cfg |= GSC_IN_XRGB8888;
158
159 writel(cfg, dev->regs + GSC_IN_CON);
160 }
161
162 void gsc_hw_set_in_image_format(struct gsc_ctx *ctx)
163 {
164 struct gsc_dev *dev = ctx->gsc_dev;
165 struct gsc_frame *frame = &ctx->s_frame;
166 u32 i, depth = 0;
167 u32 cfg;
168
169 cfg = readl(dev->regs + GSC_IN_CON);
170 cfg &= ~(GSC_IN_RGB_TYPE_MASK | GSC_IN_YUV422_1P_ORDER_MASK |
171 GSC_IN_CHROMA_ORDER_MASK | GSC_IN_FORMAT_MASK |
172 GSC_IN_TILE_TYPE_MASK | GSC_IN_TILE_MODE);
173 writel(cfg, dev->regs + GSC_IN_CON);
174
175 if (is_rgb(frame->fmt->color)) {
176 gsc_hw_set_in_image_rgb(ctx);
177 return;
178 }
179 for (i = 0; i < frame->fmt->num_planes; i++)
180 depth += frame->fmt->depth[i];
181
182 switch (frame->fmt->num_comp) {
183 case 1:
184 cfg |= GSC_IN_YUV422_1P;
185 if (frame->fmt->yorder == GSC_LSB_Y)
186 cfg |= GSC_IN_YUV422_1P_ORDER_LSB_Y;
187 else
188 cfg |= GSC_IN_YUV422_1P_OEDER_LSB_C;
189 if (frame->fmt->corder == GSC_CBCR)
190 cfg |= GSC_IN_CHROMA_ORDER_CBCR;
191 else
192 cfg |= GSC_IN_CHROMA_ORDER_CRCB;
193 break;
194 case 2:
195 if (depth == 12)
196 cfg |= GSC_IN_YUV420_2P;
197 else
198 cfg |= GSC_IN_YUV422_2P;
199 if (frame->fmt->corder == GSC_CBCR)
200 cfg |= GSC_IN_CHROMA_ORDER_CBCR;
201 else
202 cfg |= GSC_IN_CHROMA_ORDER_CRCB;
203 break;
204 case 3:
205 if (depth == 12)
206 cfg |= GSC_IN_YUV420_3P;
207 else
208 cfg |= GSC_IN_YUV422_3P;
209 break;
210 }
211
212 if (is_tiled(frame->fmt))
213 cfg |= GSC_IN_TILE_C_16x8 | GSC_IN_TILE_MODE;
214
215 writel(cfg, dev->regs + GSC_IN_CON);
216 }
217
218 void gsc_hw_set_output_path(struct gsc_ctx *ctx)
219 {
220 struct gsc_dev *dev = ctx->gsc_dev;
221
222 u32 cfg = readl(dev->regs + GSC_OUT_CON);
223 cfg &= ~GSC_OUT_PATH_MASK;
224
225 if (ctx->out_path == GSC_DMA)
226 cfg |= GSC_OUT_PATH_MEMORY;
227 else
228 cfg |= GSC_OUT_PATH_LOCAL;
229
230 writel(cfg, dev->regs + GSC_OUT_CON);
231 }
232
233 void gsc_hw_set_out_size(struct gsc_ctx *ctx)
234 {
235 struct gsc_dev *dev = ctx->gsc_dev;
236 struct gsc_frame *frame = &ctx->d_frame;
237 u32 cfg;
238
239
240 if (ctx->out_path == GSC_DMA) {
241 cfg = GSC_DSTIMG_OFFSET_X(frame->crop.left);
242 cfg |= GSC_DSTIMG_OFFSET_Y(frame->crop.top);
243 writel(cfg, dev->regs + GSC_DSTIMG_OFFSET);
244
245 cfg = GSC_DSTIMG_WIDTH(frame->f_width);
246 cfg |= GSC_DSTIMG_HEIGHT(frame->f_height);
247 writel(cfg, dev->regs + GSC_DSTIMG_SIZE);
248 }
249
250
251 if (ctx->gsc_ctrls.rotate->val == 90 ||
252 ctx->gsc_ctrls.rotate->val == 270) {
253 cfg = GSC_SCALED_WIDTH(frame->crop.height);
254 cfg |= GSC_SCALED_HEIGHT(frame->crop.width);
255 } else {
256 cfg = GSC_SCALED_WIDTH(frame->crop.width);
257 cfg |= GSC_SCALED_HEIGHT(frame->crop.height);
258 }
259 writel(cfg, dev->regs + GSC_SCALED_SIZE);
260 }
261
262 void gsc_hw_set_out_image_rgb(struct gsc_ctx *ctx)
263 {
264 struct gsc_dev *dev = ctx->gsc_dev;
265 struct gsc_frame *frame = &ctx->d_frame;
266 u32 cfg;
267
268 cfg = readl(dev->regs + GSC_OUT_CON);
269 if (frame->colorspace == V4L2_COLORSPACE_REC709)
270 cfg |= GSC_OUT_RGB_HD_WIDE;
271 else
272 cfg |= GSC_OUT_RGB_SD_WIDE;
273
274 if (frame->fmt->pixelformat == V4L2_PIX_FMT_RGB565X)
275 cfg |= GSC_OUT_RGB565;
276 else if (frame->fmt->pixelformat == V4L2_PIX_FMT_RGB32)
277 cfg |= GSC_OUT_XRGB8888;
278
279 writel(cfg, dev->regs + GSC_OUT_CON);
280 }
281
282 void gsc_hw_set_out_image_format(struct gsc_ctx *ctx)
283 {
284 struct gsc_dev *dev = ctx->gsc_dev;
285 struct gsc_frame *frame = &ctx->d_frame;
286 u32 i, depth = 0;
287 u32 cfg;
288
289 cfg = readl(dev->regs + GSC_OUT_CON);
290 cfg &= ~(GSC_OUT_RGB_TYPE_MASK | GSC_OUT_YUV422_1P_ORDER_MASK |
291 GSC_OUT_CHROMA_ORDER_MASK | GSC_OUT_FORMAT_MASK |
292 GSC_OUT_TILE_TYPE_MASK | GSC_OUT_TILE_MODE);
293 writel(cfg, dev->regs + GSC_OUT_CON);
294
295 if (is_rgb(frame->fmt->color)) {
296 gsc_hw_set_out_image_rgb(ctx);
297 return;
298 }
299
300 if (ctx->out_path != GSC_DMA) {
301 cfg |= GSC_OUT_YUV444;
302 goto end_set;
303 }
304
305 for (i = 0; i < frame->fmt->num_planes; i++)
306 depth += frame->fmt->depth[i];
307
308 switch (frame->fmt->num_comp) {
309 case 1:
310 cfg |= GSC_OUT_YUV422_1P;
311 if (frame->fmt->yorder == GSC_LSB_Y)
312 cfg |= GSC_OUT_YUV422_1P_ORDER_LSB_Y;
313 else
314 cfg |= GSC_OUT_YUV422_1P_OEDER_LSB_C;
315 if (frame->fmt->corder == GSC_CBCR)
316 cfg |= GSC_OUT_CHROMA_ORDER_CBCR;
317 else
318 cfg |= GSC_OUT_CHROMA_ORDER_CRCB;
319 break;
320 case 2:
321 if (depth == 12)
322 cfg |= GSC_OUT_YUV420_2P;
323 else
324 cfg |= GSC_OUT_YUV422_2P;
325 if (frame->fmt->corder == GSC_CBCR)
326 cfg |= GSC_OUT_CHROMA_ORDER_CBCR;
327 else
328 cfg |= GSC_OUT_CHROMA_ORDER_CRCB;
329 break;
330 case 3:
331 cfg |= GSC_OUT_YUV420_3P;
332 break;
333 }
334
335 if (is_tiled(frame->fmt))
336 cfg |= GSC_OUT_TILE_C_16x8 | GSC_OUT_TILE_MODE;
337
338 end_set:
339 writel(cfg, dev->regs + GSC_OUT_CON);
340 }
341
342 void gsc_hw_set_prescaler(struct gsc_ctx *ctx)
343 {
344 struct gsc_dev *dev = ctx->gsc_dev;
345 struct gsc_scaler *sc = &ctx->scaler;
346 u32 cfg;
347
348 cfg = GSC_PRESC_SHFACTOR(sc->pre_shfactor);
349 cfg |= GSC_PRESC_H_RATIO(sc->pre_hratio);
350 cfg |= GSC_PRESC_V_RATIO(sc->pre_vratio);
351 writel(cfg, dev->regs + GSC_PRE_SCALE_RATIO);
352 }
353
354 void gsc_hw_set_mainscaler(struct gsc_ctx *ctx)
355 {
356 struct gsc_dev *dev = ctx->gsc_dev;
357 struct gsc_scaler *sc = &ctx->scaler;
358 u32 cfg;
359
360 cfg = GSC_MAIN_H_RATIO_VALUE(sc->main_hratio);
361 writel(cfg, dev->regs + GSC_MAIN_H_RATIO);
362
363 cfg = GSC_MAIN_V_RATIO_VALUE(sc->main_vratio);
364 writel(cfg, dev->regs + GSC_MAIN_V_RATIO);
365 }
366
367 void gsc_hw_set_rotation(struct gsc_ctx *ctx)
368 {
369 struct gsc_dev *dev = ctx->gsc_dev;
370 u32 cfg;
371
372 cfg = readl(dev->regs + GSC_IN_CON);
373 cfg &= ~GSC_IN_ROT_MASK;
374
375 switch (ctx->gsc_ctrls.rotate->val) {
376 case 270:
377 cfg |= GSC_IN_ROT_270;
378 break;
379 case 180:
380 cfg |= GSC_IN_ROT_180;
381 break;
382 case 90:
383 if (ctx->gsc_ctrls.hflip->val)
384 cfg |= GSC_IN_ROT_90_XFLIP;
385 else if (ctx->gsc_ctrls.vflip->val)
386 cfg |= GSC_IN_ROT_90_YFLIP;
387 else
388 cfg |= GSC_IN_ROT_90;
389 break;
390 case 0:
391 if (ctx->gsc_ctrls.hflip->val)
392 cfg |= GSC_IN_ROT_XFLIP;
393 else if (ctx->gsc_ctrls.vflip->val)
394 cfg |= GSC_IN_ROT_YFLIP;
395 }
396
397 writel(cfg, dev->regs + GSC_IN_CON);
398 }
399
400 void gsc_hw_set_global_alpha(struct gsc_ctx *ctx)
401 {
402 struct gsc_dev *dev = ctx->gsc_dev;
403 struct gsc_frame *frame = &ctx->d_frame;
404 u32 cfg;
405
406 if (!is_rgb(frame->fmt->color)) {
407 pr_debug("Not a RGB format");
408 return;
409 }
410
411 cfg = readl(dev->regs + GSC_OUT_CON);
412 cfg &= ~GSC_OUT_GLOBAL_ALPHA_MASK;
413
414 cfg |= GSC_OUT_GLOBAL_ALPHA(ctx->gsc_ctrls.global_alpha->val);
415 writel(cfg, dev->regs + GSC_OUT_CON);
416 }
417
418 void gsc_hw_set_sfr_update(struct gsc_ctx *ctx)
419 {
420 struct gsc_dev *dev = ctx->gsc_dev;
421 u32 cfg;
422
423 cfg = readl(dev->regs + GSC_ENABLE);
424 cfg |= GSC_ENABLE_SFR_UPDATE;
425 writel(cfg, dev->regs + GSC_ENABLE);
426 }