diff options
-rw-r--r-- | drivers/video/omap2/dss/dispc.c | 214 |
1 files changed, 94 insertions, 120 deletions
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index 5ecdc000409..90eb11083cc 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -139,6 +139,22 @@ struct omap_dispc_isr_data { u32 mask; }; +struct dispc_h_coef { + s8 hc4; + s8 hc3; + u8 hc2; + s8 hc1; + s8 hc0; +}; + +struct dispc_v_coef { + s8 vc22; + s8 vc2; + u8 vc1; + s8 vc0; + s8 vc00; +}; + #define REG_GET(idx, start, end) \ FLD_GET(dispc_read_reg(idx), start, end) @@ -564,106 +580,77 @@ static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup, int vscaleup, int five_taps) { /* Coefficients for horizontal up-sampling */ - static const u32 coef_hup[8] = { - 0x00800000, - 0x0D7CF800, - 0x1E70F5FF, - 0x335FF5FE, - 0xF74949F7, - 0xF55F33FB, - 0xF5701EFE, - 0xF87C0DFF, + static const struct dispc_h_coef coef_hup[8] = { + { 0, 0, 128, 0, 0 }, + { -1, 13, 124, -8, 0 }, + { -2, 30, 112, -11, -1 }, + { -5, 51, 95, -11, -2 }, + { 0, -9, 73, 73, -9 }, + { -2, -11, 95, 51, -5 }, + { -1, -11, 112, 30, -2 }, + { 0, -8, 124, 13, -1 }, }; - /* Coefficients for horizontal down-sampling */ - static const u32 coef_hdown[8] = { - 0x24382400, - 0x28371FFE, - 0x2C361BFB, - 0x303516F9, - 0x11343311, - 0x1635300C, - 0x1B362C08, - 0x1F372804, + /* Coefficients for vertical up-sampling */ + static const struct dispc_v_coef coef_vup_3tap[8] = { + { 0, 0, 128, 0, 0 }, + { 0, 3, 123, 2, 0 }, + { 0, 12, 111, 5, 0 }, + { 0, 32, 89, 7, 0 }, + { 0, 0, 64, 64, 0 }, + { 0, 7, 89, 32, 0 }, + { 0, 5, 111, 12, 0 }, + { 0, 2, 123, 3, 0 }, }; - /* Coefficients for horizontal and vertical up-sampling */ - static const u32 coef_hvup[2][8] = { - { - 0x00800000, - 0x037B02FF, - 0x0C6F05FE, - 0x205907FB, - 0x00404000, - 0x075920FE, - 0x056F0CFF, - 0x027B0300, - }, - { - 0x00800000, - 0x0D7CF8FF, - 0x1E70F5FE, - 0x335FF5FB, - 0xF7404000, - 0xF55F33FE, - 0xF5701EFF, - 0xF87C0D00, - }, + static const struct dispc_v_coef coef_vup_5tap[8] = { + { 0, 0, 128, 0, 0 }, + { -1, 13, 124, -8, 0 }, + { -2, 30, 112, -11, -1 }, + { -5, 51, 95, -11, -2 }, + { 0, -9, 73, 73, -9 }, + { -2, -11, 95, 51, -5 }, + { -1, -11, 112, 30, -2 }, + { 0, -8, 124, 13, -1 }, }; - /* Coefficients for horizontal and vertical down-sampling */ - static const u32 coef_hvdown[2][8] = { - { - 0x24382400, - 0x28391F04, - 0x2D381B08, - 0x3237170C, - 0x123737F7, - 0x173732F9, - 0x1B382DFB, - 0x1F3928FE, - }, - { - 0x24382400, - 0x28371F04, - 0x2C361B08, - 0x3035160C, - 0x113433F7, - 0x163530F9, - 0x1B362CFB, - 0x1F3728FE, - }, + /* Coefficients for horizontal down-sampling */ + static const struct dispc_h_coef coef_hdown[8] = { + { 0, 36, 56, 36, 0 }, + { 4, 40, 55, 31, -2 }, + { 8, 44, 54, 27, -5 }, + { 12, 48, 53, 22, -7 }, + { -9, 17, 52, 51, 17 }, + { -7, 22, 53, 48, 12 }, + { -5, 27, 54, 44, 8 }, + { -2, 31, 55, 40, 4 }, }; - /* Coefficients for vertical up-sampling */ - static const u32 coef_vup[8] = { - 0x00000000, - 0x0000FF00, - 0x0000FEFF, - 0x0000FBFE, - 0x000000F7, - 0x0000FEFB, - 0x0000FFFE, - 0x000000FF, + /* Coefficients for vertical down-sampling */ + static const struct dispc_v_coef coef_vdown_3tap[8] = { + { 0, 36, 56, 36, 0 }, + { 0, 40, 57, 31, 0 }, + { 0, 45, 56, 27, 0 }, + { 0, 50, 55, 23, 0 }, + { 0, 18, 55, 55, 0 }, + { 0, 23, 55, 50, 0 }, + { 0, 27, 56, 45, 0 }, + { 0, 31, 57, 40, 0 }, }; - - /* Coefficients for vertical down-sampling */ - static const u32 coef_vdown[8] = { - 0x00000000, - 0x000004FE, - 0x000008FB, - 0x00000CF9, - 0x0000F711, - 0x0000F90C, - 0x0000FB08, - 0x0000FE04, + static const struct dispc_v_coef coef_vdown_5tap[8] = { + { 0, 36, 56, 36, 0 }, + { 4, 40, 55, 31, -2 }, + { 8, 44, 54, 27, -5 }, + { 12, 48, 53, 22, -7 }, + { -9, 17, 52, 51, 17 }, + { -7, 22, 53, 48, 12 }, + { -5, 27, 54, 44, 8 }, + { -2, 31, 55, 40, 4 }, }; - const u32 *h_coef; - const u32 *hv_coef; - const u32 *hv_coef_mod; - const u32 *v_coef; + const struct dispc_h_coef *h_coef; + const struct dispc_v_coef *v_coef; int i; if (hscaleup) @@ -671,47 +658,34 @@ static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup, else h_coef = coef_hdown; - if (vscaleup) { - hv_coef = coef_hvup[five_taps]; - v_coef = coef_vup; - - if (hscaleup) - hv_coef_mod = NULL; - else - hv_coef_mod = coef_hvdown[five_taps]; - } else { - hv_coef = coef_hvdown[five_taps]; - v_coef = coef_vdown; - - if (hscaleup) - hv_coef_mod = coef_hvup[five_taps]; - else - hv_coef_mod = NULL; - } + if (vscaleup) + v_coef = five_taps ? coef_vup_5tap : coef_vup_3tap; + else + v_coef = five_taps ? coef_vdown_5tap : coef_vdown_3tap; for (i = 0; i < 8; i++) { u32 h, hv; - h = h_coef[i]; - - hv = hv_coef[i]; - - if (hv_coef_mod) { - hv &= 0xffffff00; - hv |= (hv_coef_mod[i] & 0xff); - } + h = FLD_VAL(h_coef[i].hc0, 7, 0) + | FLD_VAL(h_coef[i].hc1, 15, 8) + | FLD_VAL(h_coef[i].hc2, 23, 16) + | FLD_VAL(h_coef[i].hc3, 31, 24); + hv = FLD_VAL(h_coef[i].hc4, 7, 0) + | FLD_VAL(v_coef[i].vc0, 15, 8) + | FLD_VAL(v_coef[i].vc1, 23, 16) + | FLD_VAL(v_coef[i].vc2, 31, 24); _dispc_write_firh_reg(plane, i, h); _dispc_write_firhv_reg(plane, i, hv); } - if (!five_taps) - return; - - for (i = 0; i < 8; i++) { - u32 v; - v = v_coef[i]; - _dispc_write_firv_reg(plane, i, v); + if (five_taps) { + for (i = 0; i < 8; i++) { + u32 v; + v = FLD_VAL(v_coef[i].vc00, 7, 0) + | FLD_VAL(v_coef[i].vc22, 15, 8); + _dispc_write_firv_reg(plane, i, v); + } } } |