tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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
23struct ipu_soc;
24
25enum 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 */
36struct 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 */
57enum 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
70enum 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
85enum 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 */
94enum ipu_motion_sel {
95 MOTION_NONE = 0,
96 LOW_MOTION,
97 MED_MOTION,
98 HIGH_MOTION,
99};
100
101struct ipuv3_channel;
102
103enum 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
164static 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
186int ipu_map_irq(struct ipu_soc *ipu, int irq);
187int 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 */
205int ipu_get_num(struct ipu_soc *ipu);
206void ipu_set_csi_src_mux(struct ipu_soc *ipu, int csi_id, bool mipi_csi2);
207void ipu_set_ic_src_mux(struct ipu_soc *ipu, int csi_id, bool vdi);
208void ipu_dump(struct ipu_soc *ipu);
209
210/*
211 * IPU Image DMA Controller (idmac) functions
212 */
213struct ipuv3_channel *ipu_idmac_get(struct ipu_soc *ipu, unsigned channel);
214void ipu_idmac_put(struct ipuv3_channel *);
215
216int ipu_idmac_enable_channel(struct ipuv3_channel *channel);
217int ipu_idmac_disable_channel(struct ipuv3_channel *channel);
218void ipu_idmac_enable_watermark(struct ipuv3_channel *channel, bool enable);
219int ipu_idmac_lock_enable(struct ipuv3_channel *channel, int num_bursts);
220int ipu_idmac_wait_busy(struct ipuv3_channel *channel, int ms);
221
222void ipu_idmac_set_double_buffer(struct ipuv3_channel *channel,
223 bool doublebuffer);
224int ipu_idmac_get_current_buffer(struct ipuv3_channel *channel);
225bool ipu_idmac_buffer_is_ready(struct ipuv3_channel *channel, u32 buf_num);
226void ipu_idmac_select_buffer(struct ipuv3_channel *channel, u32 buf_num);
227void ipu_idmac_clear_buffer(struct ipuv3_channel *channel, u32 buf_num);
228int ipu_fsu_link(struct ipu_soc *ipu, int src_ch, int sink_ch);
229int ipu_fsu_unlink(struct ipu_soc *ipu, int src_ch, int sink_ch);
230int ipu_idmac_link(struct ipuv3_channel *src, struct ipuv3_channel *sink);
231int ipu_idmac_unlink(struct ipuv3_channel *src, struct ipuv3_channel *sink);
232
233/*
234 * IPU Channel Parameter Memory (cpmem) functions
235 */
236struct 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
244struct 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
251void ipu_cpmem_zero(struct ipuv3_channel *ch);
252void ipu_cpmem_set_resolution(struct ipuv3_channel *ch, int xres, int yres);
253void ipu_cpmem_skip_odd_chroma_rows(struct ipuv3_channel *ch);
254void ipu_cpmem_set_stride(struct ipuv3_channel *ch, int stride);
255void ipu_cpmem_set_high_priority(struct ipuv3_channel *ch);
256void ipu_cpmem_set_buffer(struct ipuv3_channel *ch, int bufnum, dma_addr_t buf);
257void ipu_cpmem_set_uv_offset(struct ipuv3_channel *ch, u32 u_off, u32 v_off);
258void ipu_cpmem_interlaced_scan(struct ipuv3_channel *ch, int stride);
259void ipu_cpmem_set_axi_id(struct ipuv3_channel *ch, u32 id);
260int ipu_cpmem_get_burstsize(struct ipuv3_channel *ch);
261void ipu_cpmem_set_burstsize(struct ipuv3_channel *ch, int burstsize);
262void ipu_cpmem_set_block_mode(struct ipuv3_channel *ch);
263void ipu_cpmem_set_rotation(struct ipuv3_channel *ch,
264 enum ipu_rotate_mode rot);
265int ipu_cpmem_set_format_rgb(struct ipuv3_channel *ch,
266 const struct ipu_rgb *rgb);
267int ipu_cpmem_set_format_passthrough(struct ipuv3_channel *ch, int width);
268void ipu_cpmem_set_yuv_interleaved(struct ipuv3_channel *ch, u32 pixel_format);
269void ipu_cpmem_set_yuv_planar_full(struct ipuv3_channel *ch,
270 unsigned int uv_stride,
271 unsigned int u_offset,
272 unsigned int v_offset);
273int ipu_cpmem_set_fmt(struct ipuv3_channel *ch, u32 drm_fourcc);
274int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image);
275void ipu_cpmem_dump(struct ipuv3_channel *ch);
276
277/*
278 * IPU Display Controller (dc) functions
279 */
280struct ipu_dc;
281struct ipu_di;
282struct ipu_dc *ipu_dc_get(struct ipu_soc *ipu, int channel);
283void ipu_dc_put(struct ipu_dc *dc);
284int ipu_dc_init_sync(struct ipu_dc *dc, struct ipu_di *di, bool interlaced,
285 u32 pixel_fmt, u32 width);
286void ipu_dc_enable(struct ipu_soc *ipu);
287void ipu_dc_enable_channel(struct ipu_dc *dc);
288void ipu_dc_disable_channel(struct ipu_dc *dc);
289void ipu_dc_disable(struct ipu_soc *ipu);
290
291/*
292 * IPU Display Interface (di) functions
293 */
294struct ipu_di *ipu_di_get(struct ipu_soc *ipu, int disp);
295void ipu_di_put(struct ipu_di *);
296int ipu_di_disable(struct ipu_di *);
297int ipu_di_enable(struct ipu_di *);
298int ipu_di_get_num(struct ipu_di *);
299int ipu_di_adjust_videomode(struct ipu_di *di, struct videomode *mode);
300int ipu_di_init_sync_panel(struct ipu_di *, struct ipu_di_signal_cfg *sig);
301
302/*
303 * IPU Display Multi FIFO Controller (dmfc) functions
304 */
305struct dmfc_channel;
306int ipu_dmfc_enable_channel(struct dmfc_channel *dmfc);
307void ipu_dmfc_disable_channel(struct dmfc_channel *dmfc);
308void ipu_dmfc_config_wait4eot(struct dmfc_channel *dmfc, int width);
309struct dmfc_channel *ipu_dmfc_get(struct ipu_soc *ipu, int ipuv3_channel);
310void ipu_dmfc_put(struct dmfc_channel *dmfc);
311
312/*
313 * IPU Display Processor (dp) functions
314 */
315#define IPU_DP_FLOW_SYNC_BG 0
316#define IPU_DP_FLOW_SYNC_FG 1
317#define IPU_DP_FLOW_ASYNC0_BG 2
318#define IPU_DP_FLOW_ASYNC0_FG 3
319#define IPU_DP_FLOW_ASYNC1_BG 4
320#define IPU_DP_FLOW_ASYNC1_FG 5
321
322struct ipu_dp *ipu_dp_get(struct ipu_soc *ipu, unsigned int flow);
323void ipu_dp_put(struct ipu_dp *);
324int ipu_dp_enable(struct ipu_soc *ipu);
325int ipu_dp_enable_channel(struct ipu_dp *dp);
326void ipu_dp_disable_channel(struct ipu_dp *dp, bool sync);
327void ipu_dp_disable(struct ipu_soc *ipu);
328int ipu_dp_setup_channel(struct ipu_dp *dp,
329 enum ipu_color_space in, enum ipu_color_space out);
330int ipu_dp_set_window_pos(struct ipu_dp *, u16 x_pos, u16 y_pos);
331int ipu_dp_set_global_alpha(struct ipu_dp *dp, bool enable, u8 alpha,
332 bool bg_chan);
333
334/*
335 * IPU Prefetch Resolve Gasket (prg) functions
336 */
337int ipu_prg_max_active_channels(void);
338bool ipu_prg_present(struct ipu_soc *ipu);
339bool ipu_prg_format_supported(struct ipu_soc *ipu, uint32_t format,
340 uint64_t modifier);
341int ipu_prg_enable(struct ipu_soc *ipu);
342void ipu_prg_disable(struct ipu_soc *ipu);
343void ipu_prg_channel_disable(struct ipuv3_channel *ipu_chan);
344int ipu_prg_channel_configure(struct ipuv3_channel *ipu_chan,
345 unsigned int axi_id, unsigned int width,
346 unsigned int height, unsigned int stride,
347 u32 format, uint64_t modifier, unsigned long *eba);
348
349/*
350 * IPU CMOS Sensor Interface (csi) functions
351 */
352struct ipu_csi;
353int ipu_csi_init_interface(struct ipu_csi *csi,
354 struct v4l2_mbus_config *mbus_cfg,
355 struct v4l2_mbus_framefmt *mbus_fmt);
356bool ipu_csi_is_interlaced(struct ipu_csi *csi);
357void ipu_csi_get_window(struct ipu_csi *csi, struct v4l2_rect *w);
358void ipu_csi_set_window(struct ipu_csi *csi, struct v4l2_rect *w);
359void ipu_csi_set_downsize(struct ipu_csi *csi, bool horiz, bool vert);
360void ipu_csi_set_test_generator(struct ipu_csi *csi, bool active,
361 u32 r_value, u32 g_value, u32 b_value,
362 u32 pix_clk);
363int ipu_csi_set_mipi_datatype(struct ipu_csi *csi, u32 vc,
364 struct v4l2_mbus_framefmt *mbus_fmt);
365int ipu_csi_set_skip_smfc(struct ipu_csi *csi, u32 skip,
366 u32 max_ratio, u32 id);
367int ipu_csi_set_dest(struct ipu_csi *csi, enum ipu_csi_dest csi_dest);
368int ipu_csi_enable(struct ipu_csi *csi);
369int ipu_csi_disable(struct ipu_csi *csi);
370struct ipu_csi *ipu_csi_get(struct ipu_soc *ipu, int id);
371void ipu_csi_put(struct ipu_csi *csi);
372void ipu_csi_dump(struct ipu_csi *csi);
373
374/*
375 * IPU Image Converter (ic) functions
376 */
377enum ipu_ic_task {
378 IC_TASK_ENCODER,
379 IC_TASK_VIEWFINDER,
380 IC_TASK_POST_PROCESSOR,
381 IC_NUM_TASKS,
382};
383
384struct ipu_ic;
385int ipu_ic_task_init(struct ipu_ic *ic,
386 int in_width, int in_height,
387 int out_width, int out_height,
388 enum ipu_color_space in_cs,
389 enum ipu_color_space out_cs);
390int ipu_ic_task_graphics_init(struct ipu_ic *ic,
391 enum ipu_color_space in_g_cs,
392 bool galpha_en, u32 galpha,
393 bool colorkey_en, u32 colorkey);
394void ipu_ic_task_enable(struct ipu_ic *ic);
395void ipu_ic_task_disable(struct ipu_ic *ic);
396int ipu_ic_task_idma_init(struct ipu_ic *ic, struct ipuv3_channel *channel,
397 u32 width, u32 height, int burst_size,
398 enum ipu_rotate_mode rot);
399int ipu_ic_enable(struct ipu_ic *ic);
400int ipu_ic_disable(struct ipu_ic *ic);
401struct ipu_ic *ipu_ic_get(struct ipu_soc *ipu, enum ipu_ic_task task);
402void ipu_ic_put(struct ipu_ic *ic);
403void ipu_ic_dump(struct ipu_ic *ic);
404
405/*
406 * IPU Video De-Interlacer (vdi) functions
407 */
408struct ipu_vdi;
409void ipu_vdi_set_field_order(struct ipu_vdi *vdi, v4l2_std_id std, u32 field);
410void ipu_vdi_set_motion(struct ipu_vdi *vdi, enum ipu_motion_sel motion_sel);
411void ipu_vdi_setup(struct ipu_vdi *vdi, u32 code, int xres, int yres);
412void ipu_vdi_unsetup(struct ipu_vdi *vdi);
413int ipu_vdi_enable(struct ipu_vdi *vdi);
414int ipu_vdi_disable(struct ipu_vdi *vdi);
415struct ipu_vdi *ipu_vdi_get(struct ipu_soc *ipu);
416void ipu_vdi_put(struct ipu_vdi *vdi);
417
418/*
419 * IPU Sensor Multiple FIFO Controller (SMFC) functions
420 */
421struct ipu_smfc *ipu_smfc_get(struct ipu_soc *ipu, unsigned int chno);
422void ipu_smfc_put(struct ipu_smfc *smfc);
423int ipu_smfc_enable(struct ipu_smfc *smfc);
424int ipu_smfc_disable(struct ipu_smfc *smfc);
425int ipu_smfc_map_channel(struct ipu_smfc *smfc, int csi_id, int mipi_id);
426int ipu_smfc_set_burstsize(struct ipu_smfc *smfc, int burstsize);
427int ipu_smfc_set_watermark(struct ipu_smfc *smfc, u32 set_level, u32 clr_level);
428
429enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc);
430enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat);
431enum ipu_color_space ipu_mbus_code_to_colorspace(u32 mbus_code);
432int ipu_stride_to_bytes(u32 pixel_stride, u32 pixelformat);
433bool ipu_pixelformat_is_planar(u32 pixelformat);
434int ipu_degrees_to_rot_mode(enum ipu_rotate_mode *mode, int degrees,
435 bool hflip, bool vflip);
436int ipu_rot_mode_to_degrees(int *degrees, enum ipu_rotate_mode mode,
437 bool hflip, bool vflip);
438
439struct ipu_client_platformdata {
440 int csi;
441 int di;
442 int dc;
443 int dp;
444 int dma[2];
445 struct device_node *of_node;
446};
447
448#endif /* __DRM_IPU_H__ */