diff options
Diffstat (limited to 'drivers/video/ipu_disp.c')
| -rw-r--r-- | drivers/video/ipu_disp.c | 1359 |
1 files changed, 1359 insertions, 0 deletions
diff --git a/drivers/video/ipu_disp.c b/drivers/video/ipu_disp.c new file mode 100644 index 0000000000..11cf98d3d5 --- /dev/null +++ b/drivers/video/ipu_disp.c @@ -0,0 +1,1359 @@ +/* + * Porting to u-boot: + * + * (C) Copyright 2010 + * Stefano Babic, DENX Software Engineering, sbabic@denx.de + * + * Linux IPU driver for MX51: + * + * (C) Copyright 2005-2010 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* #define DEBUG */ + +#include <common.h> +#include <linux/types.h> +#include <asm/errno.h> +#include <asm/io.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/sys_proto.h> +#include "ipu.h" +#include "ipu_regs.h" + +enum csc_type_t { + RGB2YUV = 0, + YUV2RGB, + RGB2RGB, + YUV2YUV, + CSC_NONE, + CSC_NUM +}; + +struct dp_csc_param_t { + int mode; + void *coeff; +}; + +#define SYNC_WAVE 0 + +/* DC display ID assignments */ +#define DC_DISP_ID_SYNC(di) (di) +#define DC_DISP_ID_SERIAL 2 +#define DC_DISP_ID_ASYNC 3 + +int dmfc_type_setup; +static int dmfc_size_28, dmfc_size_29, dmfc_size_24, dmfc_size_27, dmfc_size_23; +int g_di1_tvout; + +extern struct clk *g_ipu_clk; +extern struct clk *g_di_clk[2]; +extern struct clk *g_pixel_clk[2]; + +extern unsigned char g_ipu_clk_enabled; +extern unsigned char g_dc_di_assignment[]; + +void ipu_dmfc_init(int dmfc_type, int first) +{ + u32 dmfc_wr_chan, dmfc_dp_chan; + + if (first) { + if (dmfc_type_setup > dmfc_type) + dmfc_type = dmfc_type_setup; + else + dmfc_type_setup = dmfc_type; + + /* disable DMFC-IC channel*/ + __raw_writel(0x2, DMFC_IC_CTRL); + } else if (dmfc_type_setup >= DMFC_HIGH_RESOLUTION_DC) { + printf("DMFC high resolution has set, will not change\n"); + return; + } else + dmfc_type_setup = dmfc_type; + + if (dmfc_type == DMFC_HIGH_RESOLUTION_DC) { + /* 1 - segment 0~3; + * 5B - segement 4, 5; + * 5F - segement 6, 7; + * 1C, 2C and 6B, 6F unused; + */ + debug("IPU DMFC DC HIGH RES: 1(0~3), 5B(4,5), 5F(6,7)\n"); + dmfc_wr_chan = 0x00000088; + dmfc_dp_chan = 0x00009694; + dmfc_size_28 = 256 * 4; + dmfc_size_29 = 0; + dmfc_size_24 = 0; + dmfc_size_27 = 128 * 4; + dmfc_size_23 = 128 * 4; + } else if (dmfc_type == DMFC_HIGH_RESOLUTION_DP) { + /* 1 - segment 0, 1; + * 5B - segement 2~5; + * 5F - segement 6,7; + * 1C, 2C and 6B, 6F unused; + */ + debug("IPU DMFC DP HIGH RES: 1(0,1), 5B(2~5), 5F(6,7)\n"); + dmfc_wr_chan = 0x00000090; + dmfc_dp_chan = 0x0000968a; + dmfc_size_28 = 128 * 4; + dmfc_size_29 = 0; + dmfc_size_24 = 0; + dmfc_size_27 = 128 * 4; + dmfc_size_23 = 256 * 4; + } else if (dmfc_type == DMFC_HIGH_RESOLUTION_ONLY_DP) { + /* 5B - segement 0~3; + * 5F - segement 4~7; + * 1, 1C, 2C and 6B, 6F unused; + */ + debug("IPU DMFC ONLY-DP HIGH RES: 5B(0~3), 5F(4~7)\n"); + dmfc_wr_chan = 0x00000000; + dmfc_dp_chan = 0x00008c88; + dmfc_size_28 = 0; + dmfc_size_29 = 0; + dmfc_size_24 = 0; + dmfc_size_27 = 256 * 4; + dmfc_size_23 = 256 * 4; + } else { + /* 1 - segment 0, 1; + * 5B - segement 4, 5; + * 5F - segement 6, 7; + * 1C, 2C and 6B, 6F unused; + */ + debug("IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)\n"); + dmfc_wr_chan = 0x00000090; + dmfc_dp_chan = 0x00009694; + dmfc_size_28 = 128 * 4; + dmfc_size_29 = 0; + dmfc_size_24 = 0; + dmfc_size_27 = 128 * 4; + dmfc_size_23 = 128 * 4; + } + __raw_writel(dmfc_wr_chan, DMFC_WR_CHAN); + __raw_writel(0x202020F6, DMFC_WR_CHAN_DEF); + __raw_writel(dmfc_dp_chan, DMFC_DP_CHAN); + /* Enable chan 5 watermark set at 5 bursts and clear at 7 bursts */ + __raw_writel(0x2020F6F6, DMFC_DP_CHAN_DEF); +} + +void ipu_dmfc_set_wait4eot(int dma_chan, int width) +{ + u32 dmfc_gen1 = __raw_readl(DMFC_GENERAL1); + + if (width >= HIGH_RESOLUTION_WIDTH) { + if (dma_chan == 23) + ipu_dmfc_init(DMFC_HIGH_RESOLUTION_DP, 0); + else if (dma_chan == 28) + ipu_dmfc_init(DMFC_HIGH_RESOLUTION_DC, 0); + } + + if (dma_chan == 23) { /*5B*/ + if (dmfc_size_23 / width > 3) + dmfc_gen1 |= 1UL << 20; + else + dmfc_gen1 &= ~(1UL << 20); + } else if (dma_chan == 24) { /*6B*/ + if (dmfc_size_24 / width > 1) + dmfc_gen1 |= 1UL << 22; + else + dmfc_gen1 &= ~(1UL << 22); + } else if (dma_chan == 27) { /*5F*/ + if (dmfc_size_27 / width > 2) + dmfc_gen1 |= 1UL << 21; + else + dmfc_gen1 &= ~(1UL << 21); + } else if (dma_chan == 28) { /*1*/ + if (dmfc_size_28 / width > 2) + dmfc_gen1 |= 1UL << 16; + else + dmfc_gen1 &= ~(1UL << 16); + } else if (dma_chan == 29) { /*6F*/ + if (dmfc_size_29 / width > 1) + dmfc_gen1 |= 1UL << 23; + else + dmfc_gen1 &= ~(1UL << 23); + } + + __raw_writel(dmfc_gen1, DMFC_GENERAL1); +} + +static void ipu_di_data_wave_config(int di, + int wave_gen, + int access_size, int component_size) +{ + u32 reg; + reg = (access_size << DI_DW_GEN_ACCESS_SIZE_OFFSET) | + (component_size << DI_DW_GEN_COMPONENT_SIZE_OFFSET); + __raw_writel(reg, DI_DW_GEN(di, wave_gen)); +} + +static void ipu_di_data_pin_config(int di, int wave_gen, int di_pin, int set, + int up, int down) +{ + u32 reg; + + reg = __raw_readl(DI_DW_GEN(di, wave_gen)); + reg &= ~(0x3 << (di_pin * 2)); + reg |= set << (di_pin * 2); + __raw_writel(reg, DI_DW_GEN(di, wave_gen)); + + __raw_writel((down << 16) | up, DI_DW_SET(di, wave_gen, set)); +} + +static void ipu_di_sync_config(int di, int wave_gen, + int run_count, int run_src, + int offset_count, int offset_src, + int repeat_count, int cnt_clr_src, + int cnt_polarity_gen_en, + int cnt_polarity_clr_src, + int cnt_polarity_trigger_src, + int cnt_up, int cnt_down) +{ + u32 reg; + + if ((run_count >= 0x1000) || (offset_count >= 0x1000) || + (repeat_count >= 0x1000) || + (cnt_up >= 0x400) || (cnt_down >= 0x400)) { + printf("DI%d counters out of range.\n", di); + return; + } + + reg = (run_count << 19) | (++run_src << 16) | + (offset_count << 3) | ++offset_src; + __raw_writel(reg, DI_SW_GEN0(di, wave_gen)); + reg = (cnt_polarity_gen_en << 29) | (++cnt_clr_src << 25) | + (++cnt_polarity_trigger_src << 12) | (++cnt_polarity_clr_src << 9); + reg |= (cnt_down << 16) | cnt_up; + if (repeat_count == 0) { + /* Enable auto reload */ + reg |= 0x10000000; + } + __raw_writel(reg, DI_SW_GEN1(di, wave_gen)); + reg = __raw_readl(DI_STP_REP(di, wave_gen)); + reg &= ~(0xFFFF << (16 * ((wave_gen - 1) & 0x1))); + reg |= repeat_count << (16 * ((wave_gen - 1) & 0x1)); + __raw_writel(reg, DI_STP_REP(di, wave_gen)); +} + +static void ipu_dc_map_config(int map, int byte_num, int offset, int mask) +{ + int ptr = map * 3 + byte_num; + u32 reg; + + reg = __raw_readl(DC_MAP_CONF_VAL(ptr)); + reg &= ~(0xFFFF << (16 * (ptr & 0x1))); + reg |= ((offset << 8) | mask) << (16 * (ptr & 0x1)); + __raw_writel(reg, DC_MAP_CONF_VAL(ptr)); + + reg = __raw_readl(DC_MAP_CONF_PTR(map)); + reg &= ~(0x1F << ((16 * (map & 0x1)) + (5 * byte_num))); + reg |= ptr << ((16 * (map & 0x1)) + (5 * byte_num)); + __raw_writel(reg, DC_MAP_CONF_PTR(map)); +} + +static void ipu_dc_map_clear(int map) +{ + u32 reg = __raw_readl(DC_MAP_CONF_PTR(map)); + __raw_writel(reg & ~(0xFFFF << (16 * (map & 0x1))), + DC_MAP_CONF_PTR(map)); +} + +static void ipu_dc_write_tmpl(int word, u32 opcode, u32 operand, int map, + int wave, int glue, int sync) +{ + u32 reg; + int stop = 1; + + reg = sync; + reg |= (glue << 4); + reg |= (++wave << 11); + reg |= (++map << 15); + reg |= (operand << 20) & 0xFFF00000; + __raw_writel(reg, ipu_dc_tmpl_reg + word * 2); + + reg = (operand >> 12); + reg |= opcode << 4; + reg |= (stop << 9); + __raw_writel(reg, ipu_dc_tmpl_reg + word * 2 + 1); +} + +static void ipu_dc_link_event(int chan, int event, int addr, int priority) +{ + u32 reg; + + reg = __raw_readl(DC_RL_CH(chan, event)); + reg &= ~(0xFFFF << (16 * (event & 0x1))); + reg |= ((addr << 8) | priority) << (16 * (event & 0x1)); + __raw_writel(reg, DC_RL_CH(chan, event)); +} + +/* Y = R * 1.200 + G * 2.343 + B * .453 + 0.250; + * U = R * -.672 + G * -1.328 + B * 2.000 + 512.250.; + * V = R * 2.000 + G * -1.672 + B * -.328 + 512.250.; + */ +static const int rgb2ycbcr_coeff[5][3] = { + {0x4D, 0x96, 0x1D}, + {0x3D5, 0x3AB, 0x80}, + {0x80, 0x395, 0x3EB}, + {0x0000, 0x0200, 0x0200}, /* B0, B1, B2 */ + {0x2, 0x2, 0x2}, /* S0, S1, S2 */ +}; + +/* R = (1.164 * (Y - 16)) + (1.596 * (Cr - 128)); + * G = (1.164 * (Y - 16)) - (0.392 * (Cb - 128)) - (0.813 * (Cr - 128)); + * B = (1.164 * (Y - 16)) + (2.017 * (Cb - 128); + */ +static const int ycbcr2rgb_coeff[5][3] = { + {0x095, 0x000, 0x0CC}, + {0x095, 0x3CE, 0x398}, + {0x095, 0x0FF, 0x000}, + {0x3E42, 0x010A, 0x3DD6}, /*B0,B1,B2 */ + {0x1, 0x1, 0x1}, /*S0,S1,S2 */ +}; + +#define mask_a(a) ((u32)(a) & 0x3FF) +#define mask_b(b) ((u32)(b) & 0x3FFF) + +/* Pls keep S0, S1 and S2 as 0x2 by using this convertion */ +static int rgb_to_yuv(int n, int red, int green, int blue) +{ + int c; + c = red * rgb2ycbcr_coeff[n][0]; + c += green * rgb2ycbcr_coeff[n][1]; + c += blue * rgb2ycbcr_coeff[n][2]; + c /= 16; + c += rgb2ycbcr_coeff[3][n] * 4; + c += 8; + c /= 16; + if (c < 0) + c = 0; + if (c > 255) + c = 255; + return c; +} + +/* + * Row is for BG: RGB2YUV YUV2RGB RGB2RGB YUV2YUV CSC_NONE + * Column is for FG: RGB2YUV YUV2RGB RGB2RGB YUV2YUV CSC_NONE + */ +static struct dp_csc_param_t dp_csc_array[CSC_NUM][CSC_NUM] = { + { + {DP_COM_CONF_CSC_DEF_BOTH, &rgb2ycbcr_coeff}, + {0, 0}, + {0, 0}, + {DP_COM_CONF_CSC_DEF_BG, &rgb2ycbcr_coeff}, + {DP_COM_CONF_CSC_DEF_BG, &rgb2ycbcr_coeff} + }, + { + {0, 0}, + {DP_COM_CONF_CSC_DEF_BOTH, &ycbcr2rgb_coeff}, + {DP_COM_CONF_CSC_DEF_BG, &ycbcr2rgb_coeff}, + {0, 0}, + {DP_COM_CONF_CSC_DEF_BG, &ycbcr2rgb_coeff} + }, + { + {0, 0}, + {DP_COM_CONF_CSC_DEF_FG, &ycbcr2rgb_coeff}, + {0, 0}, + {0, 0}, + {0, 0} + }, + { + {DP_COM_CONF_CSC_DEF_FG, &rgb2ycbcr_coeff}, + {0, 0}, + {0, 0}, + {0, 0}, + {0, 0} + }, + { + {DP_COM_CONF_CSC_DEF_FG, &rgb2ycbcr_coeff}, + {DP_COM_CONF_CSC_DEF_FG, &ycbcr2rgb_coeff}, + {0, 0}, + {0, 0}, + {0, 0} + } +}; + +static enum csc_type_t fg_csc_type = CSC_NONE, bg_csc_type = CSC_NONE; +static int color_key_4rgb = 1; + +void ipu_dp_csc_setup(int dp, struct dp_csc_param_t dp_csc_param, + unsigned char srm_mode_update) +{ + u32 reg; + const int (*coeff)[5][3]; + + if (dp_csc_param.mode >= 0) { + reg = __raw_readl(DP_COM_CONF(dp)); + reg &= ~DP_COM_CONF_CSC_DEF_MASK; + reg |= dp_csc_param.mode; + __raw_writel(reg, DP_COM_CONF(dp)); + } + + coeff = dp_csc_param.coeff; + + if (coeff) { + __raw_writel(mask_a((*coeff)[0][0]) | + (mask_a((*coeff)[0][1]) << 16), DP_CSC_A_0(dp)); + __raw_writel(mask_a((*coeff)[0][2]) | + (mask_a((*coeff)[1][0]) << 16), DP_CSC_A_1(dp)); + __raw_writel(mask_a((*coeff)[1][1]) | + (mask_a((*coeff)[1][2]) << 16), DP_CSC_A_2(dp)); + __raw_writel(mask_a((*coeff)[2][0]) | + (mask_a((*coeff)[2][1]) << 16), DP_CSC_A_3(dp)); + __raw_writel(mask_a((*coeff)[2][2]) | + (mask_b((*coeff)[3][0]) << 16) | + ((*coeff)[4][0] << 30), DP_CSC_0(dp)); + __raw_writel(mask_b((*coeff)[3][1]) | ((*coeff)[4][1] << 14) | + (mask_b((*coeff)[3][2]) << 16) | + ((*coeff)[4][2] << 30), DP_CSC_1(dp)); + } + + if (srm_mode_update) { + reg = __raw_readl(IPU_SRM_PRI2) | 0x8; + __raw_writel(reg, IPU_SRM_PRI2); + } +} + +int ipu_dp_init(ipu_channel_t channel, uint32_t in_pixel_fmt, + uint32_t out_pixel_fmt) +{ + int in_fmt, out_fmt; + int dp; + int partial = 0; + uint32_t reg; + + if (channel == MEM_FG_SYNC) { + dp = DP_SYNC; + partial = 1; + } else if (channel == MEM_BG_SYNC) { + dp = DP_SYNC; + partial = 0; + } else if (channel == MEM_BG_ASYNC0) { + dp = DP_ASYNC0; + partial = 0; + } else { + return -EINVAL; + } + + in_fmt = format_to_colorspace(in_pixel_fmt); + out_fmt = format_to_colorspace(out_pixel_fmt); + + if (partial) { + if (in_fmt == RGB) { + if (out_fmt == RGB) + fg_csc_type = RGB2RGB; + else + fg_csc_type = RGB2YUV; + } else { + if (out_fmt == RGB) + fg_csc_type = YUV2RGB; + else + fg_csc_type = YUV2YUV; + } + } else { + if (in_fmt == RGB) { + if (out_fmt == RGB) + bg_csc_type = RGB2RGB; + else + bg_csc_type = RGB2YUV; + } else { + if (out_fmt == RGB) + bg_csc_type = YUV2RGB; + else + bg_csc_type = YUV2YUV; + } + } + + /* Transform color key from rgb to yuv if CSC is enabled */ + reg = __raw_readl(DP_COM_CONF(dp)); + if (color_key_4rgb && (reg & DP_COM_CONF_GWCKE) && + (((fg_csc_type == RGB2YUV) && (bg_csc_type == YUV2YUV)) || + ((fg_csc_type == YUV2YUV) && (bg_csc_type == RGB2YUV)) || + ((fg_csc_type == YUV2YUV) && (bg_csc_type == YUV2YUV)) || + ((fg_csc_type == YUV2RGB) && (bg_csc_type == YUV2RGB)))) { + int red, green, blue; + int y, u, v; + uint32_t color_key = __raw_readl(DP_GRAPH_WIND_CTRL(dp)) & + 0xFFFFFFL; + + debug("_ipu_dp_init color key 0x%x need change to yuv fmt!\n", + color_key); + + red = (color_key >> 16) & 0xFF; + green = (color_key >> 8) & 0xFF; + blue = color_key & 0xFF; + + y = rgb_to_yuv(0, red, green, blue); + u = rgb_to_yuv(1, red, green, blue); + v = rgb_to_yuv(2, red, green, blue); + color_key = (y << 16) | (u << 8) | v; + + reg = __raw_readl(DP_GRAPH_WIND_CTRL(dp)) & 0xFF000000L; + __raw_writel(reg | color_key, DP_GRAPH_WIND_CTRL(dp)); + color_key_4rgb = 0; + + debug("_ipu_dp_init color key change to yuv fmt 0x%x!\n", + color_key); + } + + ipu_dp_csc_setup(dp, dp_csc_array[bg_csc_type][fg_csc_type], 1); + + return 0; +} + +void ipu_dp_uninit(ipu_channel_t channel) +{ + int dp; + int partial = 0; + + if (channel == MEM_FG_SYNC) { + dp = DP_SYNC; + partial = 1; + } else if (channel == MEM_BG_SYNC) { + dp = DP_SYNC; + partial = 0; + } else if (channel == MEM_BG_ASYNC0) { + dp = DP_ASYNC0; + partial = 0; + } else { + return; + } + + if (partial) + fg_csc_type = CSC_NONE; + else + bg_csc_type = CSC_NONE; + + ipu_dp_csc_setup(dp, dp_csc_array[bg_csc_type][fg_csc_type], 0); +} + +void ipu_dc_init(int dc_chan, int di, unsigned char interlaced) +{ + u32 reg = 0; + + if ((dc_chan == 1) || (dc_chan == 5)) { + if (interlaced) { + ipu_dc_link_event(dc_chan, DC_EVT_NL, 0, 3); + ipu_dc_link_event(dc_chan, DC_EVT_EOL, 0, 2); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA, 0, 1); + } else { + if (di) { + ipu_dc_link_event(dc_chan, DC_EVT_NL, 2, 3); + ipu_dc_link_event(dc_chan, DC_EVT_EOL, 3, 2); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA, + 4, 1); + } else { + ipu_dc_link_event(dc_chan, DC_EVT_NL, 5, 3); + ipu_dc_link_event(dc_chan, DC_EVT_EOL, 6, 2); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA, + 7, 1); + } + } + ipu_dc_link_event(dc_chan, DC_EVT_NF, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NFIELD, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_EOF, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_EOFIELD, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR, 0, 0); + + reg = 0x2; + reg |= DC_DISP_ID_SYNC(di) << DC_WR_CH_CONF_PROG_DISP_ID_OFFSET; + reg |= di << 2; + if (interlaced) + reg |= DC_WR_CH_CONF_FIELD_MODE; + } else if ((dc_chan == 8) || (dc_chan == 9)) { + /* async channels */ + ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_0, 0x64, 1); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_1, 0x64, 1); + + reg = 0x3; + reg |= DC_DISP_ID_SERIAL << DC_WR_CH_CONF_PROG_DISP_ID_OFFSET; + } + __raw_writel(reg, DC_WR_CH_CONF(dc_chan)); + + __raw_writel(0x00000000, DC_WR_CH_ADDR(dc_chan)); + + __raw_writel(0x00000084, DC_GEN); +} + +void ipu_dc_uninit(int dc_chan) +{ + if ((dc_chan == 1) || (dc_chan == 5)) { + ipu_dc_link_event(dc_chan, DC_EVT_NL, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_EOL, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NF, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NFIELD, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_EOF, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_EOFIELD, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR, 0, 0); + } else if ((dc_chan == 8) || (dc_chan == 9)) { + ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_W_0, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_W_1, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_W_0, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_W_1, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_0, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_1, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_R_0, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_R_1, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_R_0, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_R_1, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_R_0, 0, 0); + ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_R_1, 0, 0); + } +} + +int ipu_chan_is_interlaced(ipu_channel_t channel) +{ + if (channel == MEM_DC_SYNC) + return !!(__raw_readl(DC_WR_CH_CONF_1) & + DC_WR_CH_CONF_FIELD_MODE); + else if ((channel == MEM_BG_SYNC) || (channel == MEM_FG_SYNC)) + return !!(__raw_readl(DC_WR_CH_CONF_5) & + DC_WR_CH_CONF_FIELD_MODE); + return 0; +} + +void ipu_dp_dc_enable(ipu_channel_t channel) +{ + int di; + uint32_t reg; + uint32_t dc_chan; + + if (channel == MEM_FG_SYNC) + dc_chan = 5; + if (channel == MEM_DC_SYNC) + dc_chan = 1; + else if (channel == MEM_BG_SYNC) + dc_chan = 5; + else + return; + + if (channel == MEM_FG_SYNC) { + /* Enable FG channel */ + reg = __raw_readl(DP_COM_CONF(DP_SYNC)); + __raw_writel(reg | DP_COM_CONF_FG_EN, DP_COM_CONF(DP_SYNC)); + + reg = __raw_readl(IPU_SRM_PRI2) | 0x8; + __raw_writel(reg, IPU_SRM_PRI2); + return; + } + + di = g_dc_di_assignment[dc_chan]; + + /* Make sure other DC sync channel is not assigned same DI */ + reg = __raw_readl(DC_WR_CH_CONF(6 - dc_chan)); + if ((di << 2) == (reg & DC_WR_CH_CONF_PROG_DI_ID)) { + reg &= ~DC_WR_CH_CONF_PROG_DI_ID; + reg |= di ? 0 : DC_WR_CH_CONF_PROG_DI_ID; + __raw_writel(reg, DC_WR_CH_CONF(6 - dc_chan)); + } + + reg = __raw_readl(DC_WR_CH_CONF(dc_chan)); + reg |= 4 << DC_WR_CH_CONF_PROG_TYPE_OFFSET; + __raw_writel(reg, DC_WR_CH_CONF(dc_chan)); + + clk_enable(g_pixel_clk[di]); +} + +static unsigned char dc_swap; + +void ipu_dp_dc_disable(ipu_channel_t channel, unsigned char swap) +{ + uint32_t reg; + uint32_t csc; + uint32_t dc_chan = 0; + int timeout = 50; + + dc_swap = swap; + + if (channel == MEM_DC_SYNC) { + dc_chan = 1; + } else if (channel == MEM_BG_SYNC) { + dc_chan = 5; + } else if (channel == MEM_FG_SYNC) { + /* Disable FG channel */ + dc_chan = 5; + + reg = __raw_readl(DP_COM_CONF(DP_SYNC)); + csc = reg & DP_COM_CONF_CSC_DEF_MASK; + if (csc == DP_COM_CONF_CSC_DEF_FG) + reg &= ~DP_COM_CONF_CSC_DEF_MASK; + + reg &= ~DP_COM_CONF_FG_EN; + __raw_writel(reg, DP_COM_CONF(DP_SYNC)); + + reg = __raw_readl(IPU_SRM_PRI2) | 0x8; + __raw_writel(reg, IPU_SRM_PRI2); + + timeout = 50; + + /* + * Wait for DC triple buffer to empty, + * this check is useful for tv overlay. + */ + if (g_dc_di_assignment[dc_chan] == 0) + while ((__raw_readl(DC_STAT) & 0x00000002) + != 0x00000002) { + udelay(2000); + timeout -= 2; + if (timeout <= 0) + break; + } + else if (g_dc_di_assignment[dc_chan] == 1) + while ((__raw_readl(DC_STAT) & 0x00000020) + != 0x00000020) { + udelay(2000); + timeout -= 2; + if (timeout <= 0) + break; + } + return; + } else { + return; + } + + if (dc_swap) { + /* Swap DC channel 1 and 5 settings, and disable old dc chan */ + reg = __raw_readl(DC_WR_CH_CONF(dc_chan)); + __raw_writel(reg, DC_WR_CH_CONF(6 - dc_chan)); + reg &= ~DC_WR_CH_CONF_PROG_TYPE_MASK; + reg ^= DC_WR_CH_CONF_PROG_DI_ID; + __raw_writel(reg, DC_WR_CH_CONF(dc_chan)); + } else { + timeout = 50; + + /* Wait for DC triple buffer to empty */ + if (g_dc_di_assignment[dc_chan] == 0) + while ((__raw_readl(DC_STAT) & 0x00000002) + != 0x00000002) { + udelay(2000); + timeout -= 2; + if (timeout <= 0) + break; + } + else if (g_dc_di_assignment[dc_chan] == 1) + while ((__raw_readl(DC_STAT) & 0x00000020) + != 0x00000020) { + udelay(2000); + timeout -= 2; + if (timeout <= 0) + break; + } + + reg = __raw_readl(DC_WR_CH_CONF(dc_chan)); + reg &= ~DC_WR_CH_CONF_PROG_TYPE_MASK; + __raw_writel(reg, DC_WR_CH_CONF(dc_chan)); + + reg = __raw_readl(IPU_DISP_GEN); + if (g_dc_di_assignment[dc_chan]) + reg &= ~DI1_COUNTER_RELEASE; + else + reg &= ~DI0_COUNTER_RELEASE; + __raw_writel(reg, IPU_DISP_GEN); + + /* Clock is already off because it must be done quickly, but + we need to fix the ref count */ + clk_disable(g_pixel_clk[g_dc_di_assignment[dc_chan]]); + } +} + +void ipu_init_dc_mappings(void) +{ + /* IPU_PIX_FMT_RGB24 */ + ipu_dc_map_clear(0); + ipu_dc_map_config(0, 0, 7, 0xFF); + ipu_dc_map_config(0, 1, 15, 0xFF); + ipu_dc_map_config(0, 2, 23, 0xFF); + + /* IPU_PIX_FMT_RGB666 */ + ipu_dc_map_clear(1); + ipu_dc_map_config(1, 0, 5, 0xFC); + ipu_dc_map_config(1, 1, 11, 0xFC); + ipu_dc_map_config(1, 2, 17, 0xFC); + + /* IPU_PIX_FMT_YUV444 */ + ipu_dc_map_clear(2); + ipu_dc_map_config(2, 0, 15, 0xFF); + ipu_dc_map_config(2, 1, 23, 0xFF); + ipu_dc_map_config(2, 2, 7, 0xFF); + + /* IPU_PIX_FMT_RGB565 */ + ipu_dc_map_clear(3); + ipu_dc_map_config(3, 0, 4, 0xF8); + ipu_dc_map_config(3, 1, 10, 0xFC); + ipu_dc_map_config(3, 2, 15, 0xF8); + + /* IPU_PIX_FMT_LVDS666 */ + ipu_dc_map_clear(4); + ipu_dc_map_config(4, 0, 5, 0xFC); + ipu_dc_map_config(4, 1, 13, 0xFC); + ipu_dc_map_config(4, 2, 21, 0xFC); +} + +int ipu_pixfmt_to_map(uint32_t fmt) +{ + switch (fmt) { + case IPU_PIX_FMT_GENERIC: + case IPU_PIX_FMT_RGB24: + return 0; + case IPU_PIX_FMT_RGB666: + return 1; + case IPU_PIX_FMT_YUV444: + return 2; + case IPU_PIX_FMT_RGB565: + return 3; + case IPU_PIX_FMT_LVDS666: + return 4; + } + + return -1; +} + +/* + * This function is called to adapt synchronous LCD panel to IPU restriction. + */ +void adapt_panel_to_ipu_restricitions(uint32_t *pixel_clk, + uint16_t width, uint16_t height, + uint16_t h_start_width, + uint16_t h_end_width, + uint16_t v_start_width, + uint16_t *v_end_width) +{ + if (*v_end_width < 2) { + uint16_t total_width = width + h_start_width + h_end_width; + uint16_t total_height_old = height + v_start_width + + (*v_end_width); + uint16_t total_height_new = height + v_start_width + 2; + *v_end_width = 2; + *pixel_clk = (*pixel_clk) * total_width * total_height_new / + (total_width * total_height_old); + printf("WARNING: adapt panel end blank lines\n"); + } +} + +/* + * This function is called to initialize a synchronous LCD panel. + * + * @param disp The DI the panel is attached to. + * + * @param pixel_clk Desired pixel clock frequency in Hz. + * + * @param pixel_fmt Input parameter for pixel format of buffer. + * Pixel format is a FOURCC ASCII code. + * + * @param width The width of panel in pixels. + * + * @param height The height of panel in pixels. + * + * @param hStartWidth The number of pixel clocks between the HSYNC + * signal pulse and the start of valid data. + * + * @param hSyncWidth The width of the HSYNC signal in units of pixel + * clocks. + * + * @param hEndWidth The number of pixel clocks between the end of + * valid data and the HSYNC signal for next line. + * + * @param vStartWidth The number of lines between the VSYNC + * signal pulse and the start of valid data. + * + * @param vSyncWidth The width of the VSYNC signal in units of lines + * + * @param vEndWidth The number of lines between the end of valid + * data and the VSYNC signal for next frame. + * + * @param sig Bitfield of signal polarities for LCD interface. + * + * @return This function returns 0 on success or negative error code on + * fail. + */ + +int32_t ipu_init_sync_panel(int disp, uint32_t pixel_clk, + uint16_t width, uint16_t height, + uint32_t pixel_fmt, + uint16_t h_start_width, uint16_t h_sync_width, + uint16_t h_end_width, uint16_t v_start_width, + uint16_t v_sync_width, uint16_t v_end_width, + uint32_t v_to_h_sync, ipu_di_signal_cfg_t sig) +{ + uint32_t reg; + uint32_t di_gen, vsync_cnt; + uint32_t div, rounded_pixel_clk; + uint32_t h_total, v_total; + int map; + struct clk *di_parent; + + debug("panel size = %d x %d\n", width, height); + + if ((v_sync_width == 0) || (h_sync_width == 0)) + return EINVAL; + + adapt_panel_to_ipu_restricitions(&pixel_clk, width, height, + h_start_width, h_end_width, + v_start_width, &v_end_width); + h_total = width + h_sync_width + h_start_width + h_end_width; + v_total = height + v_sync_width + v_start_width + v_end_width; + + /* Init clocking */ + debug("pixel clk = %d\n", pixel_clk); + + if (sig.ext_clk) { + if (!(g_di1_tvout && (disp == 1))) { /*not round div for tvout*/ + /* + * Set the PLL to be an even multiple + * of the pixel clock. + */ + if ((clk_get_usecount(g_pixel_clk[0]) == 0) && + (clk_get_usecount(g_pixel_clk[1]) == 0)) { + di_parent = clk_get_parent(g_di_clk[disp]); + rounded_pixel_clk = + clk_round_rate(g_pixel_clk[disp], + pixel_clk); + div = clk_get_rate(di_parent) / + rounded_pixel_clk; + if (div % 2) + div++; + if (clk_get_rate(di_parent) != div * + rounded_pixel_clk) + clk_set_rate(di_parent, + div * rounded_pixel_clk); + udelay(10000); + clk_set_rate(g_di_clk[disp], + 2 * rounded_pixel_clk); + udelay(10000); + } + } + clk_set_parent(g_pixel_clk[disp], g_di_clk[disp]); + } else { + if (clk_get_usecount(g_pixel_clk[disp]) != 0) + clk_set_parent(g_pixel_clk[disp], g_ipu_clk); + } + rounded_pixel_clk = clk_round_rate(g_pixel_clk[disp], pixel_clk); + clk_set_rate(g_pixel_clk[disp], rounded_pixel_clk); + udelay(5000); + /* Get integer portion of divider */ + div = clk_get_rate(clk_get_parent(g_pixel_clk[disp])) / + rounded_pixel_clk; + + ipu_di_data_wave_config(disp, SYNC_WAVE, div - 1, div - 1); + ipu_di_data_pin_config(disp, SYNC_WAVE, DI_PIN15, 3, 0, div * 2); + + map = ipu_pixfmt_to_map(pixel_fmt); + if (map < 0) { + debug("IPU_DISP: No MAP\n"); + return -EINVAL; + } + + di_gen = __raw_readl(DI_GENERAL(disp)); + + if (sig.interlaced) { + /* Setup internal HSYNC waveform */ + ipu_di_sync_config( + disp, /* display */ + 1, /* counter */ + h_total / 2 - 1,/* run count */ + DI_SYNC_CLK, /* run_resolution */ + 0, /* offset */ + DI_SYNC_NONE, /* offset resolution */ + 0, /* repeat count */ + DI_SYNC_NONE, /* CNT_CLR_SEL */ + 0, /* CNT_POLARITY_GEN_EN */ + DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */ + DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */ + 0, /* COUNT UP */ + 0 /* COUNT DOWN */ + ); + + /* Field 1 VSYNC waveform */ + ipu_di_sync_config( + disp, /* display */ + 2, /* counter */ + h_total - 1, /* run count */ + DI_SYNC_CLK, /* run_resolution */ + 0, /* offset */ + DI_SYNC_NONE, /* offset resolution */ + 0, /* repeat count */ + DI_SYNC_NONE, /* CNT_CLR_SEL */ + 0, /* CNT_POLARITY_GEN_EN */ + DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */ + DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */ + 0, /* COUNT UP */ + 4 /* COUNT DOWN */ + ); + + /* Setup internal HSYNC waveform */ + ipu_di_sync_config( + disp, /* display */ + 3, /* counter */ + v_total * 2 - 1,/* run count */ + DI_SYNC_INT_HSYNC, /* run_resolution */ + 1, /* offset */ + DI_SYNC_INT_HSYNC, /* offset resolution */ + 0, /* repeat count */ + DI_SYNC_NONE, /* CNT_CLR_SEL */ + 0, /* CNT_POLARITY_GEN_EN */ + DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */ + DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */ + 0, /* COUNT UP */ + 4 /* COUNT DOWN */ + ); + + /* Active Field ? */ + ipu_di_sync_config( + disp, /* display */ + 4, /* counter */ + v_total / 2 - 1,/* run count */ + DI_SYNC_HSYNC, /* run_resolution */ + v_start_width, /* offset */ + DI_SYNC_HSYNC, /* offset resolution */ + 2, /* repeat count */ + DI_SYNC_VSYNC, /* CNT_CLR_SEL */ + 0, /* CNT_POLARITY_GEN_EN */ + DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */ + DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */ + 0, /* COUNT UP */ + 0 /* COUNT DOWN */ + ); + + /* Active Line */ + ipu_di_sync_config( + disp, /* display */ + 5, /* counter */ + 0, /* run count */ + DI_SYNC_HSYNC, /* run_resolution */ + 0, /* offset */ + DI_SYNC_NONE, /* offset resolution */ + height / 2, /* repeat count */ + 4, /* CNT_CLR_SEL */ + 0, /* CNT_POLARITY_GEN_EN */ + DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */ + DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */ + 0, /* COUNT UP */ + 0 /* COUNT DOWN */ + ); + + /* Field 0 VSYNC waveform */ + ipu_di_sync_config( + disp, /* display */ + 6, /* counter */ + v_total - 1, /* run count */ + DI_SYNC_HSYNC, /* run_resolution */ + 0, /* offset */ + DI_SYNC_NONE, /* offset resolution */ + 0, /* repeat count */ + DI_SYNC_NONE, /* CNT_CLR_SEL */ + 0, /* CNT_POLARITY_GEN_EN */ + DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */ + DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */ + 0, /* COUNT UP */ + 0 /* COUNT DOWN */ + ); + + /* DC VSYNC waveform */ + vsync_cnt = 7; + ipu_di_sync_config( + disp, /* display */ + 7, /* counter */ + v_total / 2 - 1,/* run count */ + DI_SYNC_HSYNC, /* run_resolution */ + 9, /* offset */ + DI_SYNC_HSYNC, /* offset resolution */ + 2, /* repeat count */ + DI_SYNC_VSYNC, /* CNT_CLR_SEL */ + 0, /* CNT_POLARITY_GEN_EN */ + DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */ + DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */ + 0, /* COUNT UP */ + 0 /* COUNT DOWN */ + ); + + /* active pixel waveform */ + ipu_di_sync_config( + disp, /* display */ + 8, /* counter */ + 0, /* run count */ + DI_SYNC_CLK, /* run_resolution */ + h_start_width, /* offset */ + DI_SYNC_CLK, /* offset resolution */ + width, /* repeat count */ + 5, /* CNT_CLR_SEL */ + 0, /* CNT_POLARITY_GEN_EN */ + DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */ + DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */ + 0, /* COUNT UP */ + 0 /* COUNT DOWN */ + ); + + ipu_di_sync_config( + disp, /* display */ + 9, /* counter */ + v_total - 1, /* run count */ + DI_SYNC_INT_HSYNC,/* run_resolution */ + v_total / 2, /* offset */ + DI_SYNC_INT_HSYNC,/* offset resolution */ + 0, /* repeat count */ + DI_SYNC_HSYNC, /* CNT_CLR_SEL */ + 0, /* CNT_POLARITY_GEN_EN */ + DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */ + DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */ + 0, /* COUNT UP */ + 4 /* COUNT DOWN */ + ); + + /* set gentime select and tag sel */ + reg = __raw_readl(DI_SW_GEN1(disp, 9)); + reg &= 0x1FFFFFFF; + reg |= (3 - 1)<<29 | 0x00008000; + __raw_writel(reg, DI_SW_GEN1(disp, 9)); + + __raw_writel(v_total / 2 - 1, DI_SCR_CONF(disp)); + + /* set y_sel = 1 */ + di_gen |= 0x10000000; + di_gen |= DI_GEN_POLARITY_5; + di_gen |= DI_GEN_POLARITY_8; + } else { + /* Setup internal HSYNC waveform */ + ipu_di_sync_config(disp, 1, h_total - 1, DI_SYNC_CLK, + 0, DI_SYNC_NONE, 0, DI_SYNC_NONE, + 0, DI_SYNC_NONE, + DI_SYNC_NONE, 0, 0); + + /* Setup external (delayed) HSYNC waveform */ + ipu_di_sync_config(disp, DI_SYNC_HSYNC, h_total - 1, + DI_SYNC_CLK, div * v_to_h_sync, DI_SYNC_CLK, + 0, DI_SYNC_NONE, 1, DI_SYNC_NONE, + DI_SYNC_CLK, 0, h_sync_width * 2); + /* Setup VSYNC waveform */ + vsync_cnt = DI_SYNC_VSYNC; + ipu_di_sync_config(disp, DI_SYNC_VSYNC, v_total - 1, + DI_SYNC_INT_HSYNC, 0, DI_SYNC_NONE, 0, + DI_SYNC_NONE, 1, DI_SYNC_NONE, + DI_SYNC_INT_HSYNC, 0, v_sync_width * 2); + __raw_writel(v_total - 1, DI_SCR_CONF(disp)); + + /* Setup active data waveform to sync with DC */ + ipu_di_sync_config(disp, 4, 0, DI_SYNC_HSYNC, + v_sync_width + v_start_width, DI_SYNC_HSYNC, + height, + DI_SYNC_VSYNC, 0, DI_SYNC_NONE, + DI_SYNC_NONE, 0, 0); + ipu_di_sync_config(disp, 5, 0, DI_SYNC_CLK, + h_sync_width + h_start_width, DI_SYNC_CLK, + width, 4, 0, DI_SYNC_NONE, DI_SYNC_NONE, 0, + 0); + + /* reset all unused counters */ + __raw_writel(0, DI_SW_GEN0(disp, 6)); + __raw_writel(0, DI_SW_GEN1(disp, 6)); + __raw_writel(0, DI_SW_GEN0(disp, 7)); + __raw_writel(0, DI_SW_GEN1(disp, 7)); + __raw_writel(0, DI_SW_GEN0(disp, 8)); + __raw_writel(0, DI_SW_GEN1(disp, 8)); + __raw_writel(0, DI_SW_GEN0(disp, 9)); + __raw_writel(0, DI_SW_GEN1(disp, 9)); + + reg = __raw_readl(DI_STP_REP(disp, 6)); + reg &= 0x0000FFFF; + __raw_writel(reg, DI_STP_REP(disp, 6)); + __raw_writel(0, DI_STP_REP(disp, 7)); + __raw_writel(0, DI_STP_REP(disp, 9)); + + /* Init template microcode */ + if (disp) { + ipu_dc_write_tmpl(2, WROD(0), 0, map, SYNC_WAVE, 8, 5); + ipu_dc_write_tmpl(3, WROD(0), 0, map, SYNC_WAVE, 4, 5); + ipu_dc_write_tmpl(4, WROD(0), 0, map, SYNC_WAVE, 0, 5); + } else { + ipu_dc_write_tmpl(5, WROD(0), 0, map, SYNC_WAVE, 8, 5); + ipu_dc_write_tmpl(6, WROD(0), 0, map, SYNC_WAVE, 4, 5); + ipu_dc_write_tmpl(7, WROD(0), 0, map, SYNC_WAVE, 0, 5); + } + + if (sig.Hsync_pol) + di_gen |= DI_GEN_POLARITY_2; + if (sig.Vsync_pol) + di_gen |= DI_GEN_POLARITY_3; + + if (sig.clk_pol) + di_gen |= DI_GEN_POL_CLK; + + } + + __raw_writel(di_gen, DI_GENERAL(disp)); + + __raw_writel((--vsync_cnt << DI_VSYNC_SEL_OFFSET) | + 0x00000002, DI_SYNC_AS_GEN(disp)); + + reg = __raw_readl(DI_POL(disp)); + reg &= ~(DI_POL_DRDY_DATA_POLARITY | DI_POL_DRDY_POLARITY_15); + if (sig.enable_pol) + reg |= DI_POL_DRDY_POLARITY_15; + if (sig.data_pol) + reg |= DI_POL_DRDY_DATA_POLARITY; + __raw_writel(reg, DI_POL(disp)); + + __raw_writel(width, DC_DISP_CONF2(DC_DISP_ID_SYNC(disp))); + + return 0; +} + +/* + * This function sets the foreground and background plane global alpha blending + * modes. This function also sets the DP graphic plane according to the + * parameter of IPUv3 DP channel. + * + * @param channel IPUv3 DP channel + * + * @param enable Boolean to enable or disable global alpha + * blending. If disabled, local blending is used. + * + * @param alpha Global alpha value. + * + * @return Returns 0 on success or negative error code on fail + */ +int32_t ipu_disp_set_global_alpha(ipu_channel_t channel, unsigned char enable, + uint8_t alpha) +{ + uint32_t reg; + uint32_t flow; + + unsigned char bg_chan; + + if (channel == MEM_BG_SYNC || channel == MEM_FG_SYNC) + flow = DP_SYNC; + else if (channel == MEM_BG_ASYNC0 || channel == MEM_FG_ASYNC0) + flow = DP_ASYNC0; + else if (channel == MEM_BG_ASYNC1 || channel == MEM_FG_ASYNC1) + flow = DP_ASYNC1; + else + return -EINVAL; + + if (channel == MEM_BG_SYNC || channel == MEM_BG_ASYNC0 || + channel == MEM_BG_ASYNC1) + bg_chan = 1; + else + bg_chan = 0; + + if (!g_ipu_clk_enabled) + clk_enable(g_ipu_clk); + + if (bg_chan) { + reg = __raw_readl(DP_COM_CONF(flow)); + __raw_writel(reg & ~DP_COM_CONF_GWSEL, DP_COM_CONF(flow)); + } else { + reg = __raw_readl(DP_COM_CONF(flow)); + __raw_writel(reg | DP_COM_CONF_GWSEL, DP_COM_CONF(flow)); + } + + if (enable) { + reg = __raw_readl(DP_GRAPH_WIND_CTRL(flow)) & 0x00FFFFFFL; + __raw_writel(reg | ((uint32_t) alpha << 24), + DP_GRAPH_WIND_CTRL(flow)); + + reg = __raw_readl(DP_COM_CONF(flow)); + __raw_writel(reg | DP_COM_CONF_GWAM, DP_COM_CONF(flow)); + } else { + reg = __raw_readl(DP_COM_CONF(flow)); + __raw_writel(reg & ~DP_COM_CONF_GWAM, DP_COM_CONF(flow)); + } + + reg = __raw_readl(IPU_SRM_PRI2) | 0x8; + __raw_writel(reg, IPU_SRM_PRI2); + + if (!g_ipu_clk_enabled) + clk_disable(g_ipu_clk); + + return 0; +} + +/* + * This function sets the transparent color key for SDC graphic plane. + * + * @param channel Input parameter for the logical channel ID. + * + * @param enable Boolean to enable or disable color key + * + * @param colorKey 24-bit RGB color for transparent color key. + * + * @return Returns 0 on success or negative error code on fail + */ +int32_t ipu_disp_set_color_key(ipu_channel_t channel, unsigned char enable, + uint32_t color_key) +{ + uint32_t reg, flow; + int y, u, v; + int red, green, blue; + + if (channel == MEM_BG_SYNC || channel == MEM_FG_SYNC) + flow = DP_SYNC; + else if (channel == MEM_BG_ASYNC0 || channel == MEM_FG_ASYNC0) + flow = DP_ASYNC0; + else if (channel == MEM_BG_ASYNC1 || channel == MEM_FG_ASYNC1) + flow = DP_ASYNC1; + else + return -EINVAL; + + if (!g_ipu_clk_enabled) + clk_enable(g_ipu_clk); + + color_key_4rgb = 1; + /* Transform color key from rgb to yuv if CSC is enabled */ + if (((fg_csc_type == RGB2YUV) && (bg_csc_type == YUV2YUV)) || + ((fg_csc_type == YUV2YUV) && (bg_csc_type == RGB2YUV)) || + ((fg_csc_type == YUV2YUV) && (bg_csc_type == YUV2YUV)) || + ((fg_csc_type == YUV2RGB) && (bg_csc_type == YUV2RGB))) { + + debug("color key 0x%x need change to yuv fmt\n", color_key); + + red = (color_key >> 16) & 0xFF; + green = (color_key >> 8) & 0xFF; + blue = color_key & 0xFF; + + y = rgb_to_yuv(0, red, green, blue); + u = rgb_to_yuv(1, red, green, blue); + v = rgb_to_yuv(2, red, green, blue); + color_key = (y << 16) | (u << 8) | v; + + color_key_4rgb = 0; + + debug("color key change to yuv fmt 0x%x\n", color_key); + } + + if (enable) { + reg = __raw_readl(DP_GRAPH_WIND_CTRL(flow)) & 0xFF000000L; + __raw_writel(reg | color_key, DP_GRAPH_WIND_CTRL(flow)); + + reg = __raw_readl(DP_COM_CONF(flow)); + __raw_writel(reg | DP_COM_CONF_GWCKE, DP_COM_CONF(flow)); + } else { + reg = __raw_readl(DP_COM_CONF(flow)); + __raw_writel(reg & ~DP_COM_CONF_GWCKE, DP_COM_CONF(flow)); + } + + reg = __raw_readl(IPU_SRM_PRI2) | 0x8; + __raw_writel(reg, IPU_SRM_PRI2); + + if (!g_ipu_clk_enabled) + clk_disable(g_ipu_clk); + + return 0; +} |