1 /*
2  * Copyright (c) 2013 Texas Instruments Inc.
3  *
4  * David Griego, <dagriego@biglakesoftware.com>
5  * Dale Farnsworth, <dale@farnsworth.org>
6  * Archit Taneja, <archit@ti.com>
7  *
8  * This program is free software; you can redistribute it and/or modify it
9  * under the terms of the GNU General Public License version 2 as published by
10  * the Free Software Foundation.
11  */
12 #ifndef TI_SC_H
13 #define TI_SC_H
14 
15 /* Scaler regs */
16 #define CFG_SC0				0x0
17 #define CFG_INTERLACE_O			(1 << 0)
18 #define CFG_LINEAR			(1 << 1)
19 #define CFG_SC_BYPASS			(1 << 2)
20 #define CFG_INVT_FID			(1 << 3)
21 #define CFG_USE_RAV			(1 << 4)
22 #define CFG_ENABLE_EV			(1 << 5)
23 #define CFG_AUTO_HS			(1 << 6)
24 #define CFG_DCM_2X			(1 << 7)
25 #define CFG_DCM_4X			(1 << 8)
26 #define CFG_HP_BYPASS			(1 << 9)
27 #define CFG_INTERLACE_I			(1 << 10)
28 #define CFG_ENABLE_SIN2_VER_INTP	(1 << 11)
29 #define CFG_Y_PK_EN			(1 << 14)
30 #define CFG_TRIM			(1 << 15)
31 #define CFG_SELFGEN_FID			(1 << 16)
32 
33 #define CFG_SC1				0x4
34 #define CFG_ROW_ACC_INC_MASK		0x07ffffff
35 #define CFG_ROW_ACC_INC_SHIFT		0
36 
37 #define CFG_SC2				0x08
38 #define CFG_ROW_ACC_OFFSET_MASK		0x0fffffff
39 #define CFG_ROW_ACC_OFFSET_SHIFT	0
40 
41 #define CFG_SC3				0x0c
42 #define CFG_ROW_ACC_OFFSET_B_MASK	0x0fffffff
43 #define CFG_ROW_ACC_OFFSET_B_SHIFT	0
44 
45 #define CFG_SC4				0x10
46 #define CFG_TAR_H_MASK			0x07ff
47 #define CFG_TAR_H_SHIFT			0
48 #define CFG_TAR_W_MASK			0x07ff
49 #define CFG_TAR_W_SHIFT			12
50 #define CFG_LIN_ACC_INC_U_MASK		0x07
51 #define CFG_LIN_ACC_INC_U_SHIFT		24
52 #define CFG_NLIN_ACC_INIT_U_MASK	0x07
53 #define CFG_NLIN_ACC_INIT_U_SHIFT	28
54 
55 #define CFG_SC5				0x14
56 #define CFG_SRC_H_MASK			0x07ff
57 #define CFG_SRC_H_SHIFT			0
58 #define CFG_SRC_W_MASK			0x07ff
59 #define CFG_SRC_W_SHIFT			12
60 #define CFG_NLIN_ACC_INC_U_MASK		0x07
61 #define CFG_NLIN_ACC_INC_U_SHIFT	24
62 
63 #define CFG_SC6				0x18
64 #define CFG_ROW_ACC_INIT_RAV_MASK	0x03ff
65 #define CFG_ROW_ACC_INIT_RAV_SHIFT	0
66 #define CFG_ROW_ACC_INIT_RAV_B_MASK	0x03ff
67 #define CFG_ROW_ACC_INIT_RAV_B_SHIFT	10
68 
69 #define CFG_SC8				0x20
70 #define CFG_NLIN_LEFT_MASK		0x07ff
71 #define CFG_NLIN_LEFT_SHIFT		0
72 #define CFG_NLIN_RIGHT_MASK		0x07ff
73 #define CFG_NLIN_RIGHT_SHIFT		12
74 
75 #define CFG_SC9				0x24
76 #define CFG_LIN_ACC_INC			CFG_SC9
77 
78 #define CFG_SC10			0x28
79 #define CFG_NLIN_ACC_INIT		CFG_SC10
80 
81 #define CFG_SC11			0x2c
82 #define CFG_NLIN_ACC_INC		CFG_SC11
83 
84 #define CFG_SC12			0x30
85 #define CFG_COL_ACC_OFFSET_MASK		0x01ffffff
86 #define CFG_COL_ACC_OFFSET_SHIFT	0
87 
88 #define CFG_SC13			0x34
89 #define CFG_SC_FACTOR_RAV_MASK		0xff
90 #define CFG_SC_FACTOR_RAV_SHIFT		0
91 #define CFG_CHROMA_INTP_THR_MASK	0x03ff
92 #define CFG_CHROMA_INTP_THR_SHIFT	12
93 #define CFG_DELTA_CHROMA_THR_MASK	0x0f
94 #define CFG_DELTA_CHROMA_THR_SHIFT	24
95 
96 #define CFG_SC17			0x44
97 #define CFG_EV_THR_MASK			0x03ff
98 #define CFG_EV_THR_SHIFT		12
99 #define CFG_DELTA_LUMA_THR_MASK		0x0f
100 #define CFG_DELTA_LUMA_THR_SHIFT	24
101 #define CFG_DELTA_EV_THR_MASK		0x0f
102 #define CFG_DELTA_EV_THR_SHIFT		28
103 
104 #define CFG_SC18			0x48
105 #define CFG_HS_FACTOR_MASK		0x03ff
106 #define CFG_HS_FACTOR_SHIFT		0
107 #define CFG_CONF_DEFAULT_MASK		0x01ff
108 #define CFG_CONF_DEFAULT_SHIFT		16
109 
110 #define CFG_SC19			0x4c
111 #define CFG_HPF_COEFF0_MASK		0xff
112 #define CFG_HPF_COEFF0_SHIFT		0
113 #define CFG_HPF_COEFF1_MASK		0xff
114 #define CFG_HPF_COEFF1_SHIFT		8
115 #define CFG_HPF_COEFF2_MASK		0xff
116 #define CFG_HPF_COEFF2_SHIFT		16
117 #define CFG_HPF_COEFF3_MASK		0xff
118 #define CFG_HPF_COEFF3_SHIFT		23
119 
120 #define CFG_SC20			0x50
121 #define CFG_HPF_COEFF4_MASK		0xff
122 #define CFG_HPF_COEFF4_SHIFT		0
123 #define CFG_HPF_COEFF5_MASK		0xff
124 #define CFG_HPF_COEFF5_SHIFT		8
125 #define CFG_HPF_NORM_SHIFT_MASK		0x07
126 #define CFG_HPF_NORM_SHIFT_SHIFT	16
127 #define CFG_NL_LIMIT_MASK		0x1ff
128 #define CFG_NL_LIMIT_SHIFT		20
129 
130 #define CFG_SC21			0x54
131 #define CFG_NL_LO_THR_MASK		0x01ff
132 #define CFG_NL_LO_THR_SHIFT		0
133 #define CFG_NL_LO_SLOPE_MASK		0xff
134 #define CFG_NL_LO_SLOPE_SHIFT		16
135 
136 #define CFG_SC22			0x58
137 #define CFG_NL_HI_THR_MASK		0x01ff
138 #define CFG_NL_HI_THR_SHIFT		0
139 #define CFG_NL_HI_SLOPE_SH_MASK		0x07
140 #define CFG_NL_HI_SLOPE_SH_SHIFT	16
141 
142 #define CFG_SC23			0x5c
143 #define CFG_GRADIENT_THR_MASK		0x07ff
144 #define CFG_GRADIENT_THR_SHIFT		0
145 #define CFG_GRADIENT_THR_RANGE_MASK	0x0f
146 #define CFG_GRADIENT_THR_RANGE_SHIFT	12
147 #define CFG_MIN_GY_THR_MASK		0xff
148 #define CFG_MIN_GY_THR_SHIFT		16
149 #define CFG_MIN_GY_THR_RANGE_MASK	0x0f
150 #define CFG_MIN_GY_THR_RANGE_SHIFT	28
151 
152 #define CFG_SC24			0x60
153 #define CFG_ORG_H_MASK			0x07ff
154 #define CFG_ORG_H_SHIFT			0
155 #define CFG_ORG_W_MASK			0x07ff
156 #define CFG_ORG_W_SHIFT			16
157 
158 #define CFG_SC25			0x64
159 #define CFG_OFF_H_MASK			0x07ff
160 #define CFG_OFF_H_SHIFT			0
161 #define CFG_OFF_W_MASK			0x07ff
162 #define CFG_OFF_W_SHIFT			16
163 
164 /* number of phases supported by the polyphase scalers */
165 #define SC_NUM_PHASES			32
166 
167 /* number of taps used by horizontal polyphase scaler */
168 #define SC_H_NUM_TAPS			7
169 
170 /* number of taps used by vertical polyphase scaler */
171 #define SC_V_NUM_TAPS			5
172 
173 /* number of taps expected by the scaler in it's coefficient memory */
174 #define SC_NUM_TAPS_MEM_ALIGN		8
175 
176 /* Maximum frame width the scaler can handle (in pixels) */
177 #define SC_MAX_PIXEL_WIDTH		2047
178 
179 /* Maximum frame height the scaler can handle (in lines) */
180 #define SC_MAX_PIXEL_HEIGHT		2047
181 
182 /*
183  * coefficient memory size in bytes:
184  * num phases x num sets(luma and chroma) x num taps(aligned) x coeff size
185  */
186 #define SC_COEF_SRAM_SIZE	(SC_NUM_PHASES * 2 * SC_NUM_TAPS_MEM_ALIGN * 2)
187 
188 struct sc_data {
189 	void __iomem		*base;
190 	struct resource		*res;
191 
192 	dma_addr_t		loaded_coeff_h; /* loaded h coeffs in SC */
193 	dma_addr_t		loaded_coeff_v; /* loaded v coeffs in SC */
194 
195 	bool			load_coeff_h;	/* have new h SC coeffs */
196 	bool			load_coeff_v;	/* have new v SC coeffs */
197 
198 	struct platform_device *pdev;
199 };
200 
201 void sc_dump_regs(struct sc_data *sc);
202 void sc_set_hs_coeffs(struct sc_data *sc, void *addr, unsigned int src_w,
203 		unsigned int dst_w);
204 void sc_set_vs_coeffs(struct sc_data *sc, void *addr, unsigned int src_h,
205 		unsigned int dst_h);
206 void sc_config_scaler(struct sc_data *sc, u32 *sc_reg0, u32 *sc_reg8,
207 		u32 *sc_reg17, unsigned int src_w, unsigned int src_h,
208 		unsigned int dst_w, unsigned int dst_h);
209 struct sc_data *sc_create(struct platform_device *pdev, const char *res_name);
210 
211 #endif
212