1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Register definition file for s3c24xx/s3c64xx SoC CAMIF driver
4  *
5  * Copyright (C) 2012 Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
6  * Copyright (C) 2012 Tomasz Figa <tomasz.figa@gmail.com>
7 */
8 
9 #ifndef CAMIF_REGS_H_
10 #define CAMIF_REGS_H_
11 
12 #include <linux/bitops.h>
13 
14 #include "camif-core.h"
15 #include <media/drv-intf/s3c_camif.h>
16 
17 /*
18  * The id argument indicates the processing path:
19  * id = 0 - codec (FIMC C), 1 - preview (FIMC P).
20  */
21 
22 /* Camera input format */
23 #define S3C_CAMIF_REG_CISRCFMT			0x00
24 #define  CISRCFMT_ITU601_8BIT			BIT(31)
25 #define  CISRCFMT_ITU656_8BIT			(0 << 31)
26 #define  CISRCFMT_ORDER422_YCBYCR		(0 << 14)
27 #define  CISRCFMT_ORDER422_YCRYCB		(1 << 14)
28 #define  CISRCFMT_ORDER422_CBYCRY		(2 << 14)
29 #define  CISRCFMT_ORDER422_CRYCBY		(3 << 14)
30 #define  CISRCFMT_ORDER422_MASK			(3 << 14)
31 #define  CISRCFMT_SIZE_CAM_MASK			(0x1fff << 16 | 0x1fff)
32 
33 /* Window offset */
34 #define S3C_CAMIF_REG_CIWDOFST			0x04
35 #define  CIWDOFST_WINOFSEN			BIT(31)
36 #define  CIWDOFST_CLROVCOFIY			BIT(30)
37 #define  CIWDOFST_CLROVRLB_PR			BIT(28)
38 /* #define  CIWDOFST_CLROVPRFIY			BIT(27) */
39 #define  CIWDOFST_CLROVCOFICB			BIT(15)
40 #define  CIWDOFST_CLROVCOFICR			BIT(14)
41 #define  CIWDOFST_CLROVPRFICB			BIT(13)
42 #define  CIWDOFST_CLROVPRFICR			BIT(12)
43 #define  CIWDOFST_OFST_MASK			(0x7ff << 16 | 0x7ff)
44 
45 /* Window offset 2 */
46 #define S3C_CAMIF_REG_CIWDOFST2			0x14
47 #define  CIWDOFST2_OFST2_MASK			(0xfff << 16 | 0xfff)
48 
49 /* Global control */
50 #define S3C_CAMIF_REG_CIGCTRL			0x08
51 #define  CIGCTRL_SWRST				BIT(31)
52 #define  CIGCTRL_CAMRST				BIT(30)
53 #define  CIGCTRL_TESTPATTERN_NORMAL		(0 << 27)
54 #define  CIGCTRL_TESTPATTERN_COLOR_BAR		(1 << 27)
55 #define  CIGCTRL_TESTPATTERN_HOR_INC		(2 << 27)
56 #define  CIGCTRL_TESTPATTERN_VER_INC		(3 << 27)
57 #define  CIGCTRL_TESTPATTERN_MASK		(3 << 27)
58 #define  CIGCTRL_INVPOLPCLK			BIT(26)
59 #define  CIGCTRL_INVPOLVSYNC			BIT(25)
60 #define  CIGCTRL_INVPOLHREF			BIT(24)
61 #define  CIGCTRL_IRQ_OVFEN			BIT(22)
62 #define  CIGCTRL_HREF_MASK			BIT(21)
63 #define  CIGCTRL_IRQ_LEVEL			BIT(20)
64 /* IRQ_CLR_C, IRQ_CLR_P */
65 #define  CIGCTRL_IRQ_CLR(id)			BIT(19 - (id))
66 #define  CIGCTRL_FIELDMODE			BIT(2)
67 #define  CIGCTRL_INVPOLFIELD			BIT(1)
68 #define  CIGCTRL_CAM_INTERLACE			BIT(0)
69 
70 /* Y DMA output frame start address. n = 0..3. */
71 #define S3C_CAMIF_REG_CIYSA(id, n)		(0x18 + (id) * 0x54 + (n) * 4)
72 /* Cb plane output DMA start address. n = 0..3. Only codec path. */
73 #define S3C_CAMIF_REG_CICBSA(id, n)		(0x28 + (id) * 0x54 + (n) * 4)
74 /* Cr plane output DMA start address. n = 0..3. Only codec path. */
75 #define S3C_CAMIF_REG_CICRSA(id, n)		(0x38 + (id) * 0x54 + (n) * 4)
76 
77 /* CICOTRGFMT, CIPRTRGFMT - Target format */
78 #define S3C_CAMIF_REG_CITRGFMT(id, _offs)	(0x48 + (id) * (0x34 + (_offs)))
79 #define  CITRGFMT_IN422				BIT(31) /* only for s3c24xx */
80 #define  CITRGFMT_OUT422			BIT(30) /* only for s3c24xx */
81 #define  CITRGFMT_OUTFORMAT_YCBCR420		(0 << 29) /* only for s3c6410 */
82 #define  CITRGFMT_OUTFORMAT_YCBCR422		(1 << 29) /* only for s3c6410 */
83 #define  CITRGFMT_OUTFORMAT_YCBCR422I		(2 << 29) /* only for s3c6410 */
84 #define  CITRGFMT_OUTFORMAT_RGB			(3 << 29) /* only for s3c6410 */
85 #define  CITRGFMT_OUTFORMAT_MASK		(3 << 29) /* only for s3c6410 */
86 #define  CITRGFMT_TARGETHSIZE(x)		((x) << 16)
87 #define  CITRGFMT_FLIP_NORMAL			(0 << 14)
88 #define  CITRGFMT_FLIP_X_MIRROR			(1 << 14)
89 #define  CITRGFMT_FLIP_Y_MIRROR			(2 << 14)
90 #define  CITRGFMT_FLIP_180			(3 << 14)
91 #define  CITRGFMT_FLIP_MASK			(3 << 14)
92 /* Preview path only */
93 #define  CITRGFMT_ROT90_PR			BIT(13)
94 #define  CITRGFMT_TARGETVSIZE(x)		((x) << 0)
95 #define  CITRGFMT_TARGETSIZE_MASK		((0x1fff << 16) | 0x1fff)
96 
97 /* CICOCTRL, CIPRCTRL. Output DMA control. */
98 #define S3C_CAMIF_REG_CICTRL(id, _offs)		(0x4c + (id) * (0x34 + (_offs)))
99 #define  CICTRL_BURST_MASK			(0xfffff << 4)
100 /* xBURSTn - 5-bits width */
101 #define  CICTRL_YBURST1(x)			((x) << 19)
102 #define  CICTRL_YBURST2(x)			((x) << 14)
103 #define  CICTRL_RGBBURST1(x)			((x) << 19)
104 #define  CICTRL_RGBBURST2(x)			((x) << 14)
105 #define  CICTRL_CBURST1(x)			((x) << 9)
106 #define  CICTRL_CBURST2(x)			((x) << 4)
107 #define  CICTRL_LASTIRQ_ENABLE			BIT(2)
108 #define  CICTRL_ORDER422_MASK			(3 << 0)
109 
110 /* CICOSCPRERATIO, CIPRSCPRERATIO. Pre-scaler control 1. */
111 #define S3C_CAMIF_REG_CISCPRERATIO(id, _offs)	(0x50 + (id) * (0x34 + (_offs)))
112 
113 /* CICOSCPREDST, CIPRSCPREDST. Pre-scaler control 2. */
114 #define S3C_CAMIF_REG_CISCPREDST(id, _offs)	(0x54 + (id) * (0x34 + (_offs)))
115 
116 /* CICOSCCTRL, CIPRSCCTRL. Main scaler control. */
117 #define S3C_CAMIF_REG_CISCCTRL(id, _offs)	(0x58 + (id) * (0x34 + (_offs)))
118 #define  CISCCTRL_SCALERBYPASS			BIT(31)
119 /* s3c244x preview path only, s3c64xx both */
120 #define  CIPRSCCTRL_SAMPLE			BIT(31)
121 /* 0 - 16-bit RGB, 1 - 24-bit RGB */
122 #define  CIPRSCCTRL_RGB_FORMAT_24BIT		BIT(30) /* only for s3c244x */
123 #define  CIPRSCCTRL_SCALEUP_H			BIT(29) /* only for s3c244x */
124 #define  CIPRSCCTRL_SCALEUP_V			BIT(28) /* only for s3c244x */
125 /* s3c64xx */
126 #define  CISCCTRL_SCALEUP_H			BIT(30)
127 #define  CISCCTRL_SCALEUP_V			BIT(29)
128 #define  CISCCTRL_SCALEUP_MASK			(0x3 << 29)
129 #define  CISCCTRL_CSCR2Y_WIDE			BIT(28)
130 #define  CISCCTRL_CSCY2R_WIDE			BIT(27)
131 #define  CISCCTRL_LCDPATHEN_FIFO		BIT(26)
132 #define  CISCCTRL_INTERLACE			BIT(25)
133 #define  CISCCTRL_SCALERSTART			BIT(15)
134 #define  CISCCTRL_INRGB_FMT_RGB565		(0 << 13)
135 #define  CISCCTRL_INRGB_FMT_RGB666		(1 << 13)
136 #define  CISCCTRL_INRGB_FMT_RGB888		(2 << 13)
137 #define  CISCCTRL_INRGB_FMT_MASK		(3 << 13)
138 #define  CISCCTRL_OUTRGB_FMT_RGB565		(0 << 11)
139 #define  CISCCTRL_OUTRGB_FMT_RGB666		(1 << 11)
140 #define  CISCCTRL_OUTRGB_FMT_RGB888		(2 << 11)
141 #define  CISCCTRL_OUTRGB_FMT_MASK		(3 << 11)
142 #define  CISCCTRL_EXTRGB_EXTENSION		BIT(10)
143 #define  CISCCTRL_ONE2ONE			BIT(9)
144 #define  CISCCTRL_MAIN_RATIO_MASK		(0x1ff << 16 | 0x1ff)
145 
146 /* CICOTAREA, CIPRTAREA. Target area for DMA (Hsize x Vsize). */
147 #define S3C_CAMIF_REG_CITAREA(id, _offs)	(0x5c + (id) * (0x34 + (_offs)))
148 #define CITAREA_MASK				0xfffffff
149 
150 /* Codec (id = 0) or preview (id = 1) path status. */
151 #define S3C_CAMIF_REG_CISTATUS(id, _offs)	(0x64 + (id) * (0x34 + (_offs)))
152 #define  CISTATUS_OVFIY_STATUS			BIT(31)
153 #define  CISTATUS_OVFICB_STATUS			BIT(30)
154 #define  CISTATUS_OVFICR_STATUS			BIT(29)
155 #define  CISTATUS_OVF_MASK			(0x7 << 29)
156 #define  CIPRSTATUS_OVF_MASK			(0x3 << 30)
157 #define  CISTATUS_VSYNC_STATUS			BIT(28)
158 #define  CISTATUS_FRAMECNT_MASK			(3 << 26)
159 #define  CISTATUS_FRAMECNT(__reg)		(((__reg) >> 26) & 0x3)
160 #define  CISTATUS_WINOFSTEN_STATUS		BIT(25)
161 #define  CISTATUS_IMGCPTEN_STATUS		BIT(22)
162 #define  CISTATUS_IMGCPTENSC_STATUS		BIT(21)
163 #define  CISTATUS_VSYNC_A_STATUS		BIT(20)
164 #define  CISTATUS_FRAMEEND_STATUS		BIT(19) /* 17 on s3c64xx */
165 
166 /* Image capture enable */
167 #define S3C_CAMIF_REG_CIIMGCPT(_offs)		(0xa0 + (_offs))
168 #define  CIIMGCPT_IMGCPTEN			BIT(31)
169 #define  CIIMGCPT_IMGCPTEN_SC(id)		BIT(30 - (id))
170 /* Frame control: 1 - one-shot, 0 - free run */
171 #define  CIIMGCPT_CPT_FREN_ENABLE(id)		BIT(25 - (id))
172 #define  CIIMGCPT_CPT_FRMOD_ENABLE		(0 << 18)
173 #define  CIIMGCPT_CPT_FRMOD_CNT			BIT(18)
174 
175 /* Capture sequence */
176 #define S3C_CAMIF_REG_CICPTSEQ			0xc4
177 
178 /* Image effects */
179 #define S3C_CAMIF_REG_CIIMGEFF(_offs)		(0xb0 + (_offs))
180 #define  CIIMGEFF_IE_ENABLE(id)			BIT(30 + (id))
181 #define  CIIMGEFF_IE_ENABLE_MASK		(3 << 30)
182 /* Image effect: 1 - after scaler, 0 - before scaler */
183 #define  CIIMGEFF_IE_AFTER_SC			BIT(29)
184 #define  CIIMGEFF_FIN_MASK			(7 << 26)
185 #define  CIIMGEFF_FIN_BYPASS			(0 << 26)
186 #define  CIIMGEFF_FIN_ARBITRARY			(1 << 26)
187 #define  CIIMGEFF_FIN_NEGATIVE			(2 << 26)
188 #define  CIIMGEFF_FIN_ARTFREEZE			(3 << 26)
189 #define  CIIMGEFF_FIN_EMBOSSING			(4 << 26)
190 #define  CIIMGEFF_FIN_SILHOUETTE		(5 << 26)
191 #define  CIIMGEFF_PAT_CBCR_MASK			((0xff << 13) | 0xff)
192 #define  CIIMGEFF_PAT_CB(x)			((x) << 13)
193 #define  CIIMGEFF_PAT_CR(x)			(x)
194 
195 /* MSCOY0SA, MSPRY0SA. Y/Cb/Cr frame start address for input DMA. */
196 #define S3C_CAMIF_REG_MSY0SA(id)		(0xd4 + ((id) * 0x2c))
197 #define S3C_CAMIF_REG_MSCB0SA(id)		(0xd8 + ((id) * 0x2c))
198 #define S3C_CAMIF_REG_MSCR0SA(id)		(0xdc + ((id) * 0x2c))
199 
200 /* MSCOY0END, MSCOY0END. Y/Cb/Cr frame end address for input DMA. */
201 #define S3C_CAMIF_REG_MSY0END(id)		(0xe0 + ((id) * 0x2c))
202 #define S3C_CAMIF_REG_MSCB0END(id)		(0xe4 + ((id) * 0x2c))
203 #define S3C_CAMIF_REG_MSCR0END(id)		(0xe8 + ((id) * 0x2c))
204 
205 /* MSPRYOFF, MSPRYOFF. Y/Cb/Cr offset. n: 0 - codec, 1 - preview. */
206 #define S3C_CAMIF_REG_MSYOFF(id)		(0x118 + ((id) * 0x2c))
207 #define S3C_CAMIF_REG_MSCBOFF(id)		(0x11c + ((id) * 0x2c))
208 #define S3C_CAMIF_REG_MSCROFF(id)		(0x120 + ((id) * 0x2c))
209 
210 /* Real input DMA data size. n = 0 - codec, 1 - preview. */
211 #define S3C_CAMIF_REG_MSWIDTH(id)		(0xf8 + (id) * 0x2c)
212 #define  AUTOLOAD_ENABLE			BIT(31)
213 #define  ADDR_CH_DIS				BIT(30)
214 #define  MSHEIGHT(x)				(((x) & 0x3ff) << 16)
215 #define  MSWIDTH(x)				((x) & 0x3ff)
216 
217 /* Input DMA control. n = 0 - codec, 1 - preview */
218 #define S3C_CAMIF_REG_MSCTRL(id)		(0xfc + (id) * 0x2c)
219 #define  MSCTRL_ORDER422_M_YCBYCR		(0 << 4)
220 #define  MSCTRL_ORDER422_M_YCRYCB		(1 << 4)
221 #define  MSCTRL_ORDER422_M_CBYCRY		(2 << 4)
222 #define  MSCTRL_ORDER422_M_CRYCBY		(3 << 4)
223 /* 0 - camera, 1 - DMA */
224 #define  MSCTRL_SEL_DMA_CAM			BIT(3)
225 #define  MSCTRL_INFORMAT_M_YCBCR420		(0 << 1)
226 #define  MSCTRL_INFORMAT_M_YCBCR422		(1 << 1)
227 #define  MSCTRL_INFORMAT_M_YCBCR422I		(2 << 1)
228 #define  MSCTRL_INFORMAT_M_RGB			(3 << 1)
229 #define  MSCTRL_ENVID_M				BIT(0)
230 
231 /* CICOSCOSY, CIPRSCOSY. Scan line Y/Cb/Cr offset. */
232 #define S3C_CAMIF_REG_CISSY(id)			(0x12c + (id) * 0x0c)
233 #define S3C_CAMIF_REG_CISSCB(id)		(0x130 + (id) * 0x0c)
234 #define S3C_CAMIF_REG_CISSCR(id)		(0x134 + (id) * 0x0c)
235 #define S3C_CISS_OFFS_INITIAL(x)		((x) << 16)
236 #define S3C_CISS_OFFS_LINE(x)			((x) << 0)
237 
238 /* ------------------------------------------------------------------ */
239 
240 void camif_hw_reset(struct camif_dev *camif);
241 void camif_hw_clear_pending_irq(struct camif_vp *vp);
242 void camif_hw_clear_fifo_overflow(struct camif_vp *vp);
243 void camif_hw_set_lastirq(struct camif_vp *vp, int enable);
244 void camif_hw_set_input_path(struct camif_vp *vp);
245 void camif_hw_enable_scaler(struct camif_vp *vp, bool on);
246 void camif_hw_enable_capture(struct camif_vp *vp);
247 void camif_hw_disable_capture(struct camif_vp *vp);
248 void camif_hw_set_camera_bus(struct camif_dev *camif);
249 void camif_hw_set_source_format(struct camif_dev *camif);
250 void camif_hw_set_camera_crop(struct camif_dev *camif);
251 void camif_hw_set_scaler(struct camif_vp *vp);
252 void camif_hw_set_flip(struct camif_vp *vp);
253 void camif_hw_set_output_dma(struct camif_vp *vp);
254 void camif_hw_set_target_format(struct camif_vp *vp);
255 void camif_hw_set_test_pattern(struct camif_dev *camif, unsigned int pattern);
256 void camif_hw_set_effect(struct camif_dev *camif, unsigned int effect,
257 			unsigned int cr, unsigned int cb);
258 void camif_hw_set_output_addr(struct camif_vp *vp, struct camif_addr *paddr,
259 			      int index);
260 void camif_hw_dump_regs(struct camif_dev *camif, const char *label);
261 
262 static inline u32 camif_hw_get_status(struct camif_vp *vp)
263 {
264 	return readl(vp->camif->io_base + S3C_CAMIF_REG_CISTATUS(vp->id,
265 								vp->offset));
266 }
267 
268 #endif /* CAMIF_REGS_H_ */
269