Registers are initialized with constants. This is now done in
mgag200_init_regs(), mgag200_set_dac_regs() and mgag200_set_pci_regs().
Later patches should move these calls from mode setting to device
initialization.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
---
drivers/gpu/drm/mgag200/mgag200_mode.c | 262 ++++++++++++++-----------
1 file changed, 148 insertions(+), 114 deletions(-)
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index a04404c5aa769..ee1cbe5decd71 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -919,6 +919,153 @@ static int mga_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
return mga_crtc_do_set_base(mdev, fb, old_fb);
}
+static void mgag200_set_pci_regs(struct mga_device *mdev)
+{
+ uint32_t option = 0, option2 = 0;
+ struct drm_device *dev = mdev->dev;
+
+ switch (mdev->type) {
+ case G200_SE_A:
+ case G200_SE_B:
+ if (mdev->has_sdram)
+ option = 0x40049120;
+ else
+ option = 0x4004d120;
+ option2 = 0x00008000;
+ break;
+ case G200_WB:
+ case G200_EW3:
+ option = 0x41049120;
+ option2 = 0x0000b000;
+ break;
+ case G200_EV:
+ option = 0x00000120;
+ option2 = 0x0000b000;
+ break;
+ case G200_EH:
+ case G200_EH3:
+ option = 0x00000120;
+ option2 = 0x0000b000;
+ break;
+ case G200_ER:
+ break;
+ }
+
+ if (option)
+ pci_write_config_dword(dev->pdev, PCI_MGA_OPTION, option);
+
+ if (option2)
+ pci_write_config_dword(dev->pdev, PCI_MGA_OPTION2, option2);
+}
+
+static void mgag200_set_dac_regs(struct mga_device *mdev)
+{
+ size_t i;
+ uint8_t dacvalue[] = {
+ /* 0x00: */ 0, 0, 0, 0, 0, 0, 0x00, 0,
+ /* 0x08: */ 0, 0, 0, 0, 0, 0, 0, 0,
+ /* 0x10: */ 0, 0, 0, 0, 0, 0, 0, 0,
+ /* 0x18: */ 0x00, 0, 0xC9, 0xFF, 0xBF, 0x20, 0x1F, 0x20,
+ /* 0x20: */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* 0x28: */ 0x00, 0x00, 0x00, 0x00, 0, 0, 0, 0x40,
+ /* 0x30: */ 0x00, 0xB0, 0x00, 0xC2, 0x34, 0x14, 0x02, 0x83,
+ /* 0x38: */ 0x00, 0x93, 0x00, 0x77, 0x00, 0x00, 0x00, 0x3A,
+ /* 0x40: */ 0, 0, 0, 0, 0, 0, 0, 0,
+ /* 0x48: */ 0, 0, 0, 0, 0, 0, 0, 0
+ };
+
+ switch (mdev->type) {
+ case G200_SE_A:
+ case G200_SE_B:
+ dacvalue[MGA1064_VREF_CTL] = 0x03;
+ dacvalue[MGA1064_PIX_CLK_CTL] = MGA1064_PIX_CLK_CTL_SEL_PLL;
+ dacvalue[MGA1064_MISC_CTL] = MGA1064_MISC_CTL_DAC_EN |
+ MGA1064_MISC_CTL_VGA8 |
+ MGA1064_MISC_CTL_DAC_RAM_CS;
+ break;
+ case G200_WB:
+ case G200_EW3:
+ dacvalue[MGA1064_VREF_CTL] = 0x07;
+ break;
+ case G200_EV:
+ dacvalue[MGA1064_PIX_CLK_CTL] = MGA1064_PIX_CLK_CTL_SEL_PLL;
+ dacvalue[MGA1064_MISC_CTL] = MGA1064_MISC_CTL_VGA8 |
+ MGA1064_MISC_CTL_DAC_RAM_CS;
+ break;
+ case G200_EH:
+ case G200_EH3:
+ dacvalue[MGA1064_MISC_CTL] = MGA1064_MISC_CTL_VGA8 |
+ MGA1064_MISC_CTL_DAC_RAM_CS;
+ break;
+ case G200_ER:
+ break;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(dacvalue); i++) {
+ if ((i <= 0x17) ||
+ (i == 0x1b) ||
+ (i == 0x1c) ||
+ ((i >= 0x1f) && (i <= 0x29)) ||
+ ((i >= 0x30) && (i <= 0x37)))
+ continue;
+ if (IS_G200_SE(mdev) &&
+ ((i == 0x2c) || (i == 0x2d) || (i == 0x2e)))
+ continue;
+ if ((mdev->type == G200_EV ||
+ mdev->type == G200_WB ||
+ mdev->type == G200_EH ||
+ mdev->type == G200_EW3 ||
+ mdev->type == G200_EH3) &&
+ (i >= 0x44) && (i <= 0x4e))
+ continue;
+
+ WREG_DAC(i, dacvalue[i]);
+ }
+
+ if (mdev->type == G200_ER)
+ WREG_DAC(0x90, 0);
+}
+
+static void mgag200_init_regs(struct mga_device *mdev)
+{
+ uint8_t crtcext3, crtcext4;
+ uint8_t misc;
+
+ mgag200_set_pci_regs(mdev);
+ mgag200_set_dac_regs(mdev);
+
+ WREG_SEQ(2, 0x0f);
+ WREG_SEQ(3, 0x00);
+ WREG_SEQ(4, 0x0e);
+
+ WREG_CRT(10, 0);
+ WREG_CRT(11, 0);
+ WREG_CRT(12, 0);
+ WREG_CRT(13, 0);
+ WREG_CRT(14, 0);
+ WREG_CRT(15, 0);
+
+ RREG_ECRT(0x03, crtcext3);
+
+ crtcext3 |= BIT(7); /* enable MGA mode */
+ crtcext4 = 0x00;
+
+ WREG_ECRT(0x03, crtcext3);
+ WREG_ECRT(0x04, crtcext4);
+
+ if (mdev->type == G200_ER)
+ WREG_ECRT(0x24, 0x5);
+
+ if (mdev->type == G200_EW3)
+ WREG_ECRT(0x34, 0x5);
+
+ misc = RREG8(MGA_MISC_IN);
+ misc |= MGAREG_MISC_IOADSEL |
+ MGAREG_MISC_RAMMAPEN |
+ MGAREG_MISC_HIGH_PG_SEL;
+ WREG8(MGA_MISC_OUT, misc);
+}
+
static void mgag200_set_mode_regs(struct mga_device *mdev,
const struct drm_display_mode *mode)
{
@@ -1176,121 +1323,8 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
struct drm_device *dev = crtc->dev;
struct mga_device *mdev = dev->dev_private;
const struct drm_framebuffer *fb = crtc->primary->fb;
- int option = 0, option2 = 0;
- int i;
- unsigned char misc = 0;
- uint8_t crtcext3, crtcext4;
- static unsigned char dacvalue[] = {
- /* 0x00: */ 0, 0, 0, 0, 0, 0, 0x00, 0,
- /* 0x08: */ 0, 0, 0, 0, 0, 0, 0, 0,
- /* 0x10: */ 0, 0, 0, 0, 0, 0, 0, 0,
- /* 0x18: */ 0x00, 0, 0xC9, 0xFF, 0xBF, 0x20, 0x1F, 0x20,
- /* 0x20: */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* 0x28: */ 0x00, 0x00, 0x00, 0x00, 0, 0, 0, 0x40,
- /* 0x30: */ 0x00, 0xB0, 0x00, 0xC2, 0x34, 0x14, 0x02, 0x83,
- /* 0x38: */ 0x00, 0x93, 0x00, 0x77, 0x00, 0x00, 0x00, 0x3A,
- /* 0x40: */ 0, 0, 0, 0, 0, 0, 0, 0,
- /* 0x48: */ 0, 0, 0, 0, 0, 0, 0, 0
- };
-
- switch (mdev->type) {
- case G200_SE_A:
- case G200_SE_B:
- dacvalue[MGA1064_VREF_CTL] = 0x03;
- dacvalue[MGA1064_PIX_CLK_CTL] = MGA1064_PIX_CLK_CTL_SEL_PLL;
- dacvalue[MGA1064_MISC_CTL] = MGA1064_MISC_CTL_DAC_EN |
- MGA1064_MISC_CTL_VGA8 |
- MGA1064_MISC_CTL_DAC_RAM_CS;
- if (mdev->has_sdram)
- option = 0x40049120;
- else
- option = 0x4004d120;
- option2 = 0x00008000;
- break;
- case G200_WB:
- case G200_EW3:
- dacvalue[MGA1064_VREF_CTL] = 0x07;
- option = 0x41049120;
- option2 = 0x0000b000;
- break;
- case G200_EV:
- dacvalue[MGA1064_PIX_CLK_CTL] = MGA1064_PIX_CLK_CTL_SEL_PLL;
- dacvalue[MGA1064_MISC_CTL] = MGA1064_MISC_CTL_VGA8 |
- MGA1064_MISC_CTL_DAC_RAM_CS;
- option = 0x00000120;
- option2 = 0x0000b000;
- break;
- case G200_EH:
- case G200_EH3:
- dacvalue[MGA1064_MISC_CTL] = MGA1064_MISC_CTL_VGA8 |
- MGA1064_MISC_CTL_DAC_RAM_CS;
- option = 0x00000120;
- option2 = 0x0000b000;
- break;
- case G200_ER:
- break;
- }
-
- for (i = 0; i < sizeof(dacvalue); i++) {
- if ((i <= 0x17) ||
- (i == 0x1b) ||
- (i == 0x1c) ||
- ((i >= 0x1f) && (i <= 0x29)) ||
- ((i >= 0x30) && (i <= 0x37)))
- continue;
- if (IS_G200_SE(mdev) &&
- ((i == 0x2c) || (i == 0x2d) || (i == 0x2e)))
- continue;
- if ((mdev->type == G200_EV ||
- mdev->type == G200_WB ||
- mdev->type == G200_EH ||
- mdev->type == G200_EW3 ||
- mdev->type == G200_EH3) &&
- (i >= 0x44) && (i <= 0x4e))
- continue;
-
- WREG_DAC(i, dacvalue[i]);
- }
-
- if (mdev->type == G200_ER)
- WREG_DAC(0x90, 0);
-
- if (option)
- pci_write_config_dword(dev->pdev, PCI_MGA_OPTION, option);
- if (option2)
- pci_write_config_dword(dev->pdev, PCI_MGA_OPTION2, option2);
-
- WREG_SEQ(2, 0xf);
- WREG_SEQ(3, 0);
- WREG_SEQ(4, 0xe);
-
- WREG_CRT(10, 0);
- WREG_CRT(11, 0);
- WREG_CRT(12, 0);
- WREG_CRT(13, 0);
- WREG_CRT(14, 0);
- WREG_CRT(15, 0);
-
- RREG_ECRT(0x03, crtcext3);
-
- crtcext3 |= BIT(7); /* enable MGA mode */
- crtcext4 = 0x00;
-
- WREG_ECRT(0x03, crtcext3);
- WREG_ECRT(0x04, crtcext4);
-
- if (mdev->type == G200_ER)
- WREG_ECRT(0x24, 0x5);
-
- if (mdev->type == G200_EW3)
- WREG_ECRT(0x34, 0x5);
-
- misc = RREG8(MGA_MISC_IN);
- misc |= MGAREG_MISC_IOADSEL |
- MGAREG_MISC_RAMMAPEN |
- MGAREG_MISC_HIGH_PG_SEL;
- WREG8(MGA_MISC_OUT, misc);
+ mgag200_init_regs(mdev);
mgag200_set_format_regs(mdev, fb);
mga_crtc_do_set_base(mdev, fb, old_fb);
--
2.26.0
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