sun8i_ui_scaler.c (5917B)
1/* 2 * Copyright (C) 2017 Jernej Skrabec <jernej.skrabec@siol.net> 3 * 4 * Coefficients are taken from BSP driver, which is: 5 * Copyright (C) 2014-2015 Allwinner 6 * 7 * This file is licensed under the terms of the GNU General Public 8 * License version 2. This program is licensed "as is" without any 9 * warranty of any kind, whether express or implied. 10 */ 11 12#include "sun8i_ui_scaler.h" 13#include "sun8i_vi_scaler.h" 14 15static const u32 lan2coefftab16[240] = { 16 0x00004000, 0x00033ffe, 0x00063efc, 0x000a3bfb, 17 0xff0f37fb, 0xfe1433fb, 0xfd192ffb, 0xfd1f29fb, 18 0xfc2424fc, 0xfb291ffd, 0xfb2f19fd, 0xfb3314fe, 19 0xfb370fff, 0xfb3b0a00, 0xfc3e0600, 0xfe3f0300, 20 21 0xff053804, 0xff083801, 0xff0a3700, 0xff0e34ff, 22 0xff1232fd, 0xfe162ffd, 0xfd1b2cfc, 0xfd1f28fc, 23 0xfd2323fd, 0xfc281ffd, 0xfc2c1bfd, 0xfd2f16fe, 24 0xfd3212ff, 0xff340eff, 0x00360a00, 0x02370700, 25 26 0xff083207, 0xff0a3205, 0xff0d3103, 0xfe113001, 27 0xfe142e00, 0xfe182bff, 0xfe1b29fe, 0xfe1f25fe, 28 0xfe2222fe, 0xfe251ffe, 0xfe291bfe, 0xff2b18fe, 29 0x002e14fe, 0x013010ff, 0x03310dff, 0x05310a00, 30 31 0xff0a2e09, 0xff0c2e07, 0xff0f2d05, 0xff122c03, 32 0xfe152b02, 0xfe182901, 0xfe1b2700, 0xff1e24ff, 33 0xff2121ff, 0xff241eff, 0x00261bff, 0x012818ff, 34 0x022a15ff, 0x032c12ff, 0x052d0fff, 0x072d0c00, 35 36 0xff0c2a0b, 0xff0e2a09, 0xff102a07, 0xff132905, 37 0xff162803, 0xff182702, 0xff1b2501, 0xff1e2300, 38 0x00202000, 0x01221d00, 0x01251bff, 0x032618ff, 39 0x042815ff, 0x052913ff, 0x072a10ff, 0x092a0d00, 40 41 0xff0d280c, 0xff0f280a, 0xff112808, 0xff142706, 42 0xff162605, 0xff192503, 0x001b2302, 0x001d2201, 43 0x011f1f01, 0x01221d00, 0x02231b00, 0x04241800, 44 0x052616ff, 0x072713ff, 0x08271100, 0x0a280e00, 45 46 0xff0e260d, 0xff10260b, 0xff122609, 0xff142508, 47 0x00152506, 0x00182305, 0x001b2203, 0x011d2002, 48 0x011f1f01, 0x02201d01, 0x03221b00, 0x04231801, 49 0x06241600, 0x08251300, 0x09261100, 0x0b260f00, 50 51 0xff0e250e, 0xff10250c, 0x0011250a, 0x00142408, 52 0x00162307, 0x00182206, 0x011a2104, 0x011c2003, 53 0x021e1e02, 0x03201c01, 0x04211a01, 0x05221801, 54 0x07231600, 0x08241400, 0x0a241200, 0x0c241000, 55 56 0x000e240e, 0x0010240c, 0x0013230a, 0x00142309, 57 0x00162208, 0x01182106, 0x011a2005, 0x021b1f04, 58 0x031d1d03, 0x041e1c02, 0x05201a01, 0x06211801, 59 0x07221601, 0x09231400, 0x0a231300, 0x0c231100, 60 61 0x000f220f, 0x0011220d, 0x0013220b, 0x0015210a, 62 0x01162108, 0x01182007, 0x02191f06, 0x031a1e05, 63 0x041c1c04, 0x051d1b03, 0x061f1902, 0x07201801, 64 0x08211601, 0x0a211500, 0x0b221300, 0x0d221100, 65 66 0x0010210f, 0x0011210e, 0x0013210c, 0x0114200b, 67 0x01161f0a, 0x02171f08, 0x03181e07, 0x031a1d06, 68 0x041c1c04, 0x051d1a04, 0x071d1903, 0x081e1802, 69 0x091f1602, 0x0b1f1501, 0x0c211300, 0x0e201200, 70 71 0x00102010, 0x0012200e, 0x0013200d, 0x01151f0b, 72 0x01161f0a, 0x02171e09, 0x03191d07, 0x041a1c06, 73 0x051b1b05, 0x061c1a04, 0x071d1903, 0x081e1703, 74 0x0a1f1601, 0x0b1f1501, 0x0d201300, 0x0e201200, 75 76 0x00102010, 0x00121f0f, 0x00141f0d, 0x01141f0c, 77 0x02161e0a, 0x03171d09, 0x03181d08, 0x041a1c06, 78 0x051b1b05, 0x061c1a04, 0x081c1903, 0x091d1703, 79 0x0a1e1602, 0x0c1e1501, 0x0d1f1400, 0x0e1f1201, 80 81 0x00111e11, 0x00131e0f, 0x01131e0e, 0x02151d0c, 82 0x02161d0b, 0x03171c0a, 0x04181b09, 0x05191b07, 83 0x061a1a06, 0x071b1905, 0x091b1804, 0x0a1c1703, 84 0x0b1d1602, 0x0c1d1502, 0x0e1d1401, 0x0f1e1300, 85 86 0x00111e11, 0x00131d10, 0x01141d0e, 0x02151c0d, 87 0x03161c0b, 0x04171b0a, 0x05171b09, 0x06181a08, 88 0x07191907, 0x081a1806, 0x091a1805, 0x0a1b1704, 89 0x0b1c1603, 0x0d1c1502, 0x0e1d1401, 0x0f1d1301, 90}; 91 92static u32 sun8i_ui_scaler_base(struct sun8i_mixer *mixer, int channel) 93{ 94 int vi_num = mixer->cfg->vi_num; 95 96 if (mixer->cfg->is_de3) 97 return DE3_VI_SCALER_UNIT_BASE + 98 DE3_VI_SCALER_UNIT_SIZE * vi_num + 99 DE3_UI_SCALER_UNIT_SIZE * (channel - vi_num); 100 else 101 return DE2_VI_SCALER_UNIT_BASE + 102 DE2_VI_SCALER_UNIT_SIZE * vi_num + 103 DE2_UI_SCALER_UNIT_SIZE * (channel - vi_num); 104} 105 106static int sun8i_ui_scaler_coef_index(unsigned int step) 107{ 108 unsigned int scale, int_part, float_part; 109 110 scale = step >> (SUN8I_UI_SCALER_SCALE_FRAC - 3); 111 int_part = scale >> 3; 112 float_part = scale & 0x7; 113 114 switch (int_part) { 115 case 0: 116 return 0; 117 case 1: 118 return float_part; 119 case 2: 120 return 8 + (float_part >> 1); 121 case 3: 122 return 12; 123 case 4: 124 return 13; 125 default: 126 return 14; 127 } 128} 129 130void sun8i_ui_scaler_enable(struct sun8i_mixer *mixer, int layer, bool enable) 131{ 132 u32 val, base; 133 134 if (WARN_ON(layer < mixer->cfg->vi_num)) 135 return; 136 137 base = sun8i_ui_scaler_base(mixer, layer); 138 139 if (enable) 140 val = SUN8I_SCALER_GSU_CTRL_EN | 141 SUN8I_SCALER_GSU_CTRL_COEFF_RDY; 142 else 143 val = 0; 144 145 regmap_write(mixer->engine.regs, SUN8I_SCALER_GSU_CTRL(base), val); 146} 147 148void sun8i_ui_scaler_setup(struct sun8i_mixer *mixer, int layer, 149 u32 src_w, u32 src_h, u32 dst_w, u32 dst_h, 150 u32 hscale, u32 vscale, u32 hphase, u32 vphase) 151{ 152 u32 insize, outsize; 153 int i, offset; 154 u32 base; 155 156 if (WARN_ON(layer < mixer->cfg->vi_num)) 157 return; 158 159 base = sun8i_ui_scaler_base(mixer, layer); 160 161 hphase <<= SUN8I_UI_SCALER_PHASE_FRAC - 16; 162 vphase <<= SUN8I_UI_SCALER_PHASE_FRAC - 16; 163 hscale <<= SUN8I_UI_SCALER_SCALE_FRAC - 16; 164 vscale <<= SUN8I_UI_SCALER_SCALE_FRAC - 16; 165 166 insize = SUN8I_UI_SCALER_SIZE(src_w, src_h); 167 outsize = SUN8I_UI_SCALER_SIZE(dst_w, dst_h); 168 169 regmap_write(mixer->engine.regs, 170 SUN8I_SCALER_GSU_OUTSIZE(base), outsize); 171 regmap_write(mixer->engine.regs, 172 SUN8I_SCALER_GSU_INSIZE(base), insize); 173 regmap_write(mixer->engine.regs, 174 SUN8I_SCALER_GSU_HSTEP(base), hscale); 175 regmap_write(mixer->engine.regs, 176 SUN8I_SCALER_GSU_VSTEP(base), vscale); 177 regmap_write(mixer->engine.regs, 178 SUN8I_SCALER_GSU_HPHASE(base), hphase); 179 regmap_write(mixer->engine.regs, 180 SUN8I_SCALER_GSU_VPHASE(base), vphase); 181 offset = sun8i_ui_scaler_coef_index(hscale) * 182 SUN8I_UI_SCALER_COEFF_COUNT; 183 for (i = 0; i < SUN8I_UI_SCALER_COEFF_COUNT; i++) 184 regmap_write(mixer->engine.regs, 185 SUN8I_SCALER_GSU_HCOEFF(base, i), 186 lan2coefftab16[offset + i]); 187}