mirror of https://gitee.com/openkylin/linux.git
OMAP: DSS2: make filter coefficient tables human readable
Reorganize scaler FIR filter data as FIR value tables from raw register values. This makes them easier to understand and simplifies register programming code. No functional changes. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
This commit is contained in:
Grazvydas Ignotas
Tomi Valkeinen
parent
dd9c8bfbf0
commit
66be8f6cec
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@ -139,6 +139,22 @@ struct omap_dispc_isr_data {
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u32 mask;
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};
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struct dispc_h_coef {
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s8 hc4;
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s8 hc3;
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u8 hc2;
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s8 hc1;
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s8 hc0;
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};
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struct dispc_v_coef {
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s8 vc22;
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s8 vc2;
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u8 vc1;
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s8 vc0;
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s8 vc00;
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};
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#define REG_GET(idx, start, end) \
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FLD_GET(dispc_read_reg(idx), start, end)
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@ -564,106 +580,77 @@ static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup,
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int vscaleup, int five_taps)
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{
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/* Coefficients for horizontal up-sampling */
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static const u32 coef_hup[8] = {
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0x00800000,
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0x0D7CF800,
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0x1E70F5FF,
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0x335FF5FE,
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0xF74949F7,
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0xF55F33FB,
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0xF5701EFE,
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0xF87C0DFF,
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};
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/* Coefficients for horizontal down-sampling */
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static const u32 coef_hdown[8] = {
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0x24382400,
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0x28371FFE,
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0x2C361BFB,
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0x303516F9,
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0x11343311,
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0x1635300C,
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0x1B362C08,
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0x1F372804,
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};
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/* Coefficients for horizontal and vertical up-sampling */
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static const u32 coef_hvup[2][8] = {
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{
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0x00800000,
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0x037B02FF,
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0x0C6F05FE,
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0x205907FB,
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0x00404000,
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0x075920FE,
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0x056F0CFF,
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0x027B0300,
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},
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{
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0x00800000,
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0x0D7CF8FF,
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0x1E70F5FE,
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0x335FF5FB,
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0xF7404000,
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0xF55F33FE,
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0xF5701EFF,
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0xF87C0D00,
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},
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};
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/* Coefficients for horizontal and vertical down-sampling */
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static const u32 coef_hvdown[2][8] = {
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{
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0x24382400,
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0x28391F04,
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0x2D381B08,
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0x3237170C,
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0x123737F7,
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0x173732F9,
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0x1B382DFB,
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0x1F3928FE,
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},
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{
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0x24382400,
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0x28371F04,
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0x2C361B08,
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0x3035160C,
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0x113433F7,
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0x163530F9,
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0x1B362CFB,
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0x1F3728FE,
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},
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static const struct dispc_h_coef coef_hup[8] = {
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{ 0, 0, 128, 0, 0 },
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{ -1, 13, 124, -8, 0 },
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{ -2, 30, 112, -11, -1 },
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{ -5, 51, 95, -11, -2 },
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{ 0, -9, 73, 73, -9 },
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{ -2, -11, 95, 51, -5 },
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{ -1, -11, 112, 30, -2 },
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{ 0, -8, 124, 13, -1 },
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};
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/* Coefficients for vertical up-sampling */
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static const u32 coef_vup[8] = {
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0x00000000,
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0x0000FF00,
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0x0000FEFF,
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0x0000FBFE,
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0x000000F7,
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0x0000FEFB,
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0x0000FFFE,
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0x000000FF,
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static const struct dispc_v_coef coef_vup_3tap[8] = {
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{ 0, 0, 128, 0, 0 },
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{ 0, 3, 123, 2, 0 },
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{ 0, 12, 111, 5, 0 },
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{ 0, 32, 89, 7, 0 },
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{ 0, 0, 64, 64, 0 },
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{ 0, 7, 89, 32, 0 },
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{ 0, 5, 111, 12, 0 },
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{ 0, 2, 123, 3, 0 },
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};
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static const struct dispc_v_coef coef_vup_5tap[8] = {
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{ 0, 0, 128, 0, 0 },
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{ -1, 13, 124, -8, 0 },
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{ -2, 30, 112, -11, -1 },
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{ -5, 51, 95, -11, -2 },
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{ 0, -9, 73, 73, -9 },
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{ -2, -11, 95, 51, -5 },
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{ -1, -11, 112, 30, -2 },
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{ 0, -8, 124, 13, -1 },
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};
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/* Coefficients for horizontal down-sampling */
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static const struct dispc_h_coef coef_hdown[8] = {
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{ 0, 36, 56, 36, 0 },
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{ 4, 40, 55, 31, -2 },
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{ 8, 44, 54, 27, -5 },
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{ 12, 48, 53, 22, -7 },
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{ -9, 17, 52, 51, 17 },
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{ -7, 22, 53, 48, 12 },
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{ -5, 27, 54, 44, 8 },
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{ -2, 31, 55, 40, 4 },
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};
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/* Coefficients for vertical down-sampling */
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static const u32 coef_vdown[8] = {
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0x00000000,
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0x000004FE,
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0x000008FB,
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0x00000CF9,
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0x0000F711,
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0x0000F90C,
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0x0000FB08,
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0x0000FE04,
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static const struct dispc_v_coef coef_vdown_3tap[8] = {
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{ 0, 36, 56, 36, 0 },
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{ 0, 40, 57, 31, 0 },
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{ 0, 45, 56, 27, 0 },
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{ 0, 50, 55, 23, 0 },
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{ 0, 18, 55, 55, 0 },
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{ 0, 23, 55, 50, 0 },
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{ 0, 27, 56, 45, 0 },
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{ 0, 31, 57, 40, 0 },
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};
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const u32 *h_coef;
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const u32 *hv_coef;
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const u32 *hv_coef_mod;
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const u32 *v_coef;
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static const struct dispc_v_coef coef_vdown_5tap[8] = {
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{ 0, 36, 56, 36, 0 },
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{ 4, 40, 55, 31, -2 },
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{ 8, 44, 54, 27, -5 },
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{ 12, 48, 53, 22, -7 },
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{ -9, 17, 52, 51, 17 },
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{ -7, 22, 53, 48, 12 },
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{ -5, 27, 54, 44, 8 },
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{ -2, 31, 55, 40, 4 },
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};
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const struct dispc_h_coef *h_coef;
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const struct dispc_v_coef *v_coef;
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int i;
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if (hscaleup)
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@ -671,47 +658,34 @@ static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup,
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else
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h_coef = coef_hdown;
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if (vscaleup) {
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hv_coef = coef_hvup[five_taps];
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v_coef = coef_vup;
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if (hscaleup)
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hv_coef_mod = NULL;
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else
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hv_coef_mod = coef_hvdown[five_taps];
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} else {
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hv_coef = coef_hvdown[five_taps];
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v_coef = coef_vdown;
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if (hscaleup)
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hv_coef_mod = coef_hvup[five_taps];
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else
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hv_coef_mod = NULL;
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}
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if (vscaleup)
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v_coef = five_taps ? coef_vup_5tap : coef_vup_3tap;
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else
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v_coef = five_taps ? coef_vdown_5tap : coef_vdown_3tap;
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for (i = 0; i < 8; i++) {
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u32 h, hv;
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h = h_coef[i];
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hv = hv_coef[i];
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if (hv_coef_mod) {
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hv &= 0xffffff00;
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hv |= (hv_coef_mod[i] & 0xff);
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}
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h = FLD_VAL(h_coef[i].hc0, 7, 0)
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| FLD_VAL(h_coef[i].hc1, 15, 8)
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| FLD_VAL(h_coef[i].hc2, 23, 16)
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| FLD_VAL(h_coef[i].hc3, 31, 24);
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hv = FLD_VAL(h_coef[i].hc4, 7, 0)
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| FLD_VAL(v_coef[i].vc0, 15, 8)
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| FLD_VAL(v_coef[i].vc1, 23, 16)
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| FLD_VAL(v_coef[i].vc2, 31, 24);
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_dispc_write_firh_reg(plane, i, h);
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_dispc_write_firhv_reg(plane, i, hv);
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}
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if (!five_taps)
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return;
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for (i = 0; i < 8; i++) {
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u32 v;
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v = v_coef[i];
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_dispc_write_firv_reg(plane, i, v);
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if (five_taps) {
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for (i = 0; i < 8; i++) {
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u32 v;
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v = FLD_VAL(v_coef[i].vc00, 7, 0)
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| FLD_VAL(v_coef[i].vc22, 15, 8);
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_dispc_write_firv_reg(plane, i, v);
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}
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}
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}
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