drivers/video/sunxi/tve_common.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * TV encoder driver for Allwinner SoCs.
   4  *
   5  * (C) Copyright 2013-2014 Luc Verhaegen <libv@skynet.be>
   6  * (C) Copyright 2014-2015 Hans de Goede <hdegoede@redhat.com>
   7  * (C) Copyright 2017 Jernej Skrabec <jernej.skrabec@siol.net>
   8  */
   9
  10 #include <common.h>
  11
  12 #include <asm/arch/tve.h>
  13 #include <asm/io.h>
  14
  15 void tvencoder_mode_set(struct sunxi_tve_reg * const tve, enum tve_mode mode)
  16 {
  17         switch (mode) {
  18         case tve_mode_vga:
  19                 writel(SUNXI_TVE_GCTRL_DAC_INPUT(0, 1) |
  20                        SUNXI_TVE_GCTRL_DAC_INPUT(1, 2) |
  21                        SUNXI_TVE_GCTRL_DAC_INPUT(2, 3), &tve->gctrl);
  22                 writel(SUNXI_TVE_CFG0_VGA, &tve->cfg0);
  23                 writel(SUNXI_TVE_DAC_CFG0_VGA, &tve->dac_cfg0);
  24                 writel(SUNXI_TVE_UNKNOWN1_VGA, &tve->unknown1);
  25                 break;
  26         case tve_mode_composite_pal_nc:
  27                 writel(SUNXI_TVE_CHROMA_FREQ_PAL_NC, &tve->chroma_freq);
  28                 /* Fall through */
  29         case tve_mode_composite_pal:
  30                 writel(SUNXI_TVE_GCTRL_DAC_INPUT(0, 1) |
  31                        SUNXI_TVE_GCTRL_DAC_INPUT(1, 2) |
  32                        SUNXI_TVE_GCTRL_DAC_INPUT(2, 3) |
  33                        SUNXI_TVE_GCTRL_DAC_INPUT(3, 4), &tve->gctrl);
  34                 writel(SUNXI_TVE_CFG0_PAL, &tve->cfg0);
  35                 writel(SUNXI_TVE_DAC_CFG0_COMPOSITE, &tve->dac_cfg0);
  36                 writel(SUNXI_TVE_FILTER_COMPOSITE, &tve->filter);
  37                 writel(SUNXI_TVE_PORCH_NUM_PAL, &tve->porch_num);
  38                 writel(SUNXI_TVE_LINE_NUM_PAL, &tve->line_num);
  39                 writel(SUNXI_TVE_BLANK_BLACK_LEVEL_PAL,
  40                        &tve->blank_black_level);
  41                 writel(SUNXI_TVE_UNKNOWN1_COMPOSITE, &tve->unknown1);
  42                 writel(SUNXI_TVE_CBR_LEVEL_PAL, &tve->cbr_level);
  43                 writel(SUNXI_TVE_BURST_WIDTH_COMPOSITE, &tve->burst_width);
  44                 writel(SUNXI_TVE_UNKNOWN2_PAL, &tve->unknown2);
  45                 writel(SUNXI_TVE_ACTIVE_NUM_COMPOSITE, &tve->active_num);
  46                 writel(SUNXI_TVE_CHROMA_BW_GAIN_COMP, &tve->chroma_bw_gain);
  47                 writel(SUNXI_TVE_NOTCH_WIDTH_COMPOSITE, &tve->notch_width);
  48                 writel(SUNXI_TVE_RESYNC_NUM_PAL, &tve->resync_num);
  49                 writel(SUNXI_TVE_SLAVE_PARA_COMPOSITE, &tve->slave_para);
  50                 break;
  51         case tve_mode_composite_pal_m:
  52                 writel(SUNXI_TVE_CHROMA_FREQ_PAL_M, &tve->chroma_freq);
  53                 writel(SUNXI_TVE_COLOR_BURST_PAL_M, &tve->color_burst);
  54                 /* Fall through */
  55         case tve_mode_composite_ntsc:
  56                 writel(SUNXI_TVE_GCTRL_DAC_INPUT(0, 1) |
  57                        SUNXI_TVE_GCTRL_DAC_INPUT(1, 2) |
  58                        SUNXI_TVE_GCTRL_DAC_INPUT(2, 3) |
  59                        SUNXI_TVE_GCTRL_DAC_INPUT(3, 4), &tve->gctrl);
  60                 writel(SUNXI_TVE_CFG0_NTSC, &tve->cfg0);
  61                 writel(SUNXI_TVE_DAC_CFG0_COMPOSITE, &tve->dac_cfg0);
  62                 writel(SUNXI_TVE_FILTER_COMPOSITE, &tve->filter);
  63                 writel(SUNXI_TVE_PORCH_NUM_NTSC, &tve->porch_num);
  64                 writel(SUNXI_TVE_LINE_NUM_NTSC, &tve->line_num);
  65                 writel(SUNXI_TVE_BLANK_BLACK_LEVEL_NTSC,
  66                        &tve->blank_black_level);
  67                 writel(SUNXI_TVE_UNKNOWN1_COMPOSITE, &tve->unknown1);
  68                 writel(SUNXI_TVE_CBR_LEVEL_NTSC, &tve->cbr_level);
  69                 writel(SUNXI_TVE_BURST_PHASE_NTSC, &tve->burst_phase);
  70                 writel(SUNXI_TVE_BURST_WIDTH_COMPOSITE, &tve->burst_width);
  71                 writel(SUNXI_TVE_UNKNOWN2_NTSC, &tve->unknown2);
  72                 writel(SUNXI_TVE_SYNC_VBI_LEVEL_NTSC, &tve->sync_vbi_level);
  73                 writel(SUNXI_TVE_ACTIVE_NUM_COMPOSITE, &tve->active_num);
  74                 writel(SUNXI_TVE_CHROMA_BW_GAIN_COMP, &tve->chroma_bw_gain);
  75                 writel(SUNXI_TVE_NOTCH_WIDTH_COMPOSITE, &tve->notch_width);
  76                 writel(SUNXI_TVE_RESYNC_NUM_NTSC, &tve->resync_num);
  77                 writel(SUNXI_TVE_SLAVE_PARA_COMPOSITE, &tve->slave_para);
  78                 break;
  79         }
  80 }
  81
  82 void tvencoder_enable(struct sunxi_tve_reg * const tve)
  83 {
  84         setbits_le32(&tve->gctrl, SUNXI_TVE_GCTRL_ENABLE);
  85 }