diff options
Diffstat (limited to 'drivers/gpu/drm/mgag200/mgag200_mode.c')
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_mode.c | 1533 |
1 files changed, 1533 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c new file mode 100644 index 000000000000..d303061b251e --- /dev/null +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -0,0 +1,1533 @@ +/* + * Copyright 2010 Matt Turner. + * Copyright 2012 Red Hat + * + * This file is subject to the terms and conditions of the GNU General + * Public License version 2. See the file COPYING in the main + * directory of this archive for more details. + * + * Authors: Matthew Garrett + * Matt Turner + * Dave Airlie + */ + +#include <linux/delay.h> + +#include "drmP.h" +#include "drm.h" +#include "drm_crtc_helper.h" + +#include "mgag200_drv.h" + +#define MGAG200_LUT_SIZE 256 + +/* + * This file contains setup code for the CRTC. + */ + +static void mga_crtc_load_lut(struct drm_crtc *crtc) +{ + struct mga_crtc *mga_crtc = to_mga_crtc(crtc); + struct drm_device *dev = crtc->dev; + struct mga_device *mdev = dev->dev_private; + int i; + + if (!crtc->enabled) + return; + + WREG8(DAC_INDEX + MGA1064_INDEX, 0); + + for (i = 0; i < MGAG200_LUT_SIZE; i++) { + /* VGA registers */ + WREG8(DAC_INDEX + MGA1064_COL_PAL, mga_crtc->lut_r[i]); + WREG8(DAC_INDEX + MGA1064_COL_PAL, mga_crtc->lut_g[i]); + WREG8(DAC_INDEX + MGA1064_COL_PAL, mga_crtc->lut_b[i]); + } +} + +static inline void mga_wait_vsync(struct mga_device *mdev) +{ + unsigned int count = 0; + unsigned int status = 0; + + do { + status = RREG32(MGAREG_Status); + count++; + } while ((status & 0x08) && (count < 250000)); + count = 0; + status = 0; + do { + status = RREG32(MGAREG_Status); + count++; + } while (!(status & 0x08) && (count < 250000)); +} + +static inline void mga_wait_busy(struct mga_device *mdev) +{ + unsigned int count = 0; + unsigned int status = 0; + do { + status = RREG8(MGAREG_Status + 2); + count++; + } while ((status & 0x01) && (count < 500000)); +} + +/* + * The core passes the desired mode to the CRTC code to see whether any + * CRTC-specific modifications need to be made to it. We're in a position + * to just pass that straight through, so this does nothing + */ +static bool mga_crtc_mode_fixup(struct drm_crtc *crtc, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + return true; +} + +static int mga_g200se_set_plls(struct mga_device *mdev, long clock) +{ + unsigned int vcomax, vcomin, pllreffreq; + unsigned int delta, tmpdelta, permitteddelta; + unsigned int testp, testm, testn; + unsigned int p, m, n; + unsigned int computed; + + m = n = p = 0; + vcomax = 320000; + vcomin = 160000; + pllreffreq = 25000; + + delta = 0xffffffff; + permitteddelta = clock * 5 / 1000; + + for (testp = 8; testp > 0; testp /= 2) { + if (clock * testp > vcomax) + continue; + if (clock * testp < vcomin) + continue; + + for (testn = 17; testn < 256; testn++) { + for (testm = 1; testm < 32; testm++) { + computed = (pllreffreq * testn) / + (testm * testp); + if (computed > clock) + tmpdelta = computed - clock; + else + tmpdelta = clock - computed; + if (tmpdelta < delta) { + delta = tmpdelta; + m = testm - 1; + n = testn - 1; + p = testp - 1; + } + } + } + } + + if (delta > permitteddelta) { + printk(KERN_WARNING "PLL delta too large\n"); + return 1; + } + + WREG_DAC(MGA1064_PIX_PLLC_M, m); + WREG_DAC(MGA1064_PIX_PLLC_N, n); + WREG_DAC(MGA1064_PIX_PLLC_P, p); + return 0; +} + +static int mga_g200wb_set_plls(struct mga_device *mdev, long clock) +{ + unsigned int vcomax, vcomin, pllreffreq; + unsigned int delta, tmpdelta, permitteddelta; + unsigned int testp, testm, testn; + unsigned int p, m, n; + unsigned int computed; + int i, j, tmpcount, vcount; + bool pll_locked = false; + u8 tmp; + + m = n = p = 0; + vcomax = 550000; + vcomin = 150000; + pllreffreq = 48000; + + delta = 0xffffffff; + permitteddelta = clock * 5 / 1000; + + for (testp = 1; testp < 9; testp++) { + if (clock * testp > vcomax) + continue; + if (clock * testp < vcomin) + continue; + + for (testm = 1; testm < 17; testm++) { + for (testn = 1; testn < 151; testn++) { + computed = (pllreffreq * testn) / + (testm * testp); + if (computed > clock) + tmpdelta = computed - clock; + else + tmpdelta = clock - computed; + if (tmpdelta < delta) { + delta = tmpdelta; + n = testn - 1; + m = (testm - 1) | ((n >> 1) & 0x80); + p = testp - 1; + } + } + } + } + + for (i = 0; i <= 32 && pll_locked == false; i++) { + if (i > 0) { + WREG8(MGAREG_CRTC_INDEX, 0x1e); + tmp = RREG8(MGAREG_CRTC_DATA); + if (tmp < 0xff) + WREG8(MGAREG_CRTC_DATA, tmp+1); + } + + /* set pixclkdis to 1 */ + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp |= MGA1064_PIX_CLK_CTL_CLK_DIS; + WREG_DAC(MGA1064_PIX_CLK_CTL_CLK_DIS, tmp); + + WREG8(DAC_INDEX, MGA1064_REMHEADCTL); + tmp = RREG8(DAC_DATA); + tmp |= MGA1064_REMHEADCTL_CLKDIS; + WREG_DAC(MGA1064_REMHEADCTL, tmp); + + /* select PLL Set C */ + tmp = RREG8(MGAREG_MEM_MISC_READ); + tmp |= 0x3 << 2; + WREG8(MGAREG_MEM_MISC_WRITE, tmp); + + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp |= MGA1064_PIX_CLK_CTL_CLK_POW_DOWN | 0x80; + WREG_DAC(MGA1064_PIX_CLK_CTL, tmp); + + udelay(500); + + /* reset the PLL */ + WREG8(DAC_INDEX, MGA1064_VREF_CTL); + tmp = RREG8(DAC_DATA); + tmp &= ~0x04; + WREG_DAC(MGA1064_VREF_CTL, tmp); + + udelay(50); + + /* program pixel pll register */ + WREG_DAC(MGA1064_WB_PIX_PLLC_N, n); + WREG_DAC(MGA1064_WB_PIX_PLLC_M, m); + WREG_DAC(MGA1064_WB_PIX_PLLC_P, p); + + udelay(50); + + /* turn pll on */ + WREG8(DAC_INDEX, MGA1064_VREF_CTL); + tmp = RREG8(DAC_DATA); + tmp |= 0x04; + WREG_DAC(MGA1064_VREF_CTL, tmp); + + udelay(500); + + /* select the pixel pll */ + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp &= ~MGA1064_PIX_CLK_CTL_SEL_MSK; + tmp |= MGA1064_PIX_CLK_CTL_SEL_PLL; + WREG_DAC(MGA1064_PIX_CLK_CTL, tmp); + + WREG8(DAC_INDEX, MGA1064_REMHEADCTL); + tmp = RREG8(DAC_DATA); + tmp &= ~MGA1064_REMHEADCTL_CLKSL_MSK; + tmp |= MGA1064_REMHEADCTL_CLKSL_PLL; + WREG_DAC(MGA1064_REMHEADCTL, tmp); + + /* reset dotclock rate bit */ + WREG8(MGAREG_SEQ_INDEX, 1); + tmp = RREG8(MGAREG_SEQ_DATA); + tmp &= ~0x8; + WREG8(MGAREG_SEQ_DATA, tmp); + + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp &= ~MGA1064_PIX_CLK_CTL_CLK_DIS; + WREG_DAC(MGA1064_PIX_CLK_CTL, tmp); + + vcount = RREG8(MGAREG_VCOUNT); + + for (j = 0; j < 30 && pll_locked == false; j++) { + tmpcount = RREG8(MGAREG_VCOUNT); + if (tmpcount < vcount) + vcount = 0; + if ((tmpcount - vcount) > 2) + pll_locked = true; + else + udelay(5); + } + } + WREG8(DAC_INDEX, MGA1064_REMHEADCTL); + tmp = RREG8(DAC_DATA); + tmp &= ~MGA1064_REMHEADCTL_CLKDIS; + WREG_DAC(MGA1064_REMHEADCTL, tmp); + return 0; +} + +static int mga_g200ev_set_plls(struct mga_device *mdev, long clock) +{ + unsigned int vcomax, vcomin, pllreffreq; + unsigned int delta, tmpdelta, permitteddelta; + unsigned int testp, testm, testn; + unsigned int p, m, n; + unsigned int computed; + u8 tmp; + + m = n = p = 0; + vcomax = 550000; + vcomin = 150000; + pllreffreq = 50000; + + delta = 0xffffffff; + permitteddelta = clock * 5 / 1000; + + for (testp = 16; testp > 0; testp--) { + if (clock * testp > vcomax) + continue; + if (clock * testp < vcomin) + continue; + + for (testn = 1; testn < 257; testn++) { + for (testm = 1; testm < 17; testm++) { + computed = (pllreffreq * testn) / + (testm * testp); + if (computed > clock) + tmpdelta = computed - clock; + else + tmpdelta = clock - computed; + if (tmpdelta < delta) { + delta = tmpdelta; + n = testn - 1; + m = testm - 1; + p = testp - 1; + } + } + } + } + + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp |= MGA1064_PIX_CLK_CTL_CLK_DIS; + WREG_DAC(MGA1064_PIX_CLK_CTL_CLK_DIS, tmp); + + tmp = RREG8(MGAREG_MEM_MISC_READ); + tmp |= 0x3 << 2; + WREG8(MGAREG_MEM_MISC_WRITE, tmp); + + WREG8(DAC_INDEX, MGA1064_PIX_PLL_STAT); + tmp = RREG8(DAC_DATA); + WREG_DAC(MGA1064_PIX_PLL_STAT, tmp & ~0x40); + + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp |= MGA1064_PIX_CLK_CTL_CLK_POW_DOWN; + WREG_DAC(MGA1064_PIX_CLK_CTL, tmp); + + WREG_DAC(MGA1064_EV_PIX_PLLC_M, m); + WREG_DAC(MGA1064_EV_PIX_PLLC_N, n); + WREG_DAC(MGA1064_EV_PIX_PLLC_P, p); + + udelay(50); + + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp &= ~MGA1064_PIX_CLK_CTL_CLK_POW_DOWN; + WREG_DAC(MGA1064_PIX_CLK_CTL, tmp); + + udelay(500); + + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp &= ~MGA1064_PIX_CLK_CTL_SEL_MSK; + tmp |= MGA1064_PIX_CLK_CTL_SEL_PLL; + WREG_DAC(MGA1064_PIX_CLK_CTL, tmp); + + WREG8(DAC_INDEX, MGA1064_PIX_PLL_STAT); + tmp = RREG8(DAC_DATA); + WREG_DAC(MGA1064_PIX_PLL_STAT, tmp | 0x40); + + tmp = RREG8(MGAREG_MEM_MISC_READ); + tmp |= (0x3 << 2); + WREG8(MGAREG_MEM_MISC_WRITE, tmp); + + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp &= ~MGA1064_PIX_CLK_CTL_CLK_DIS; + WREG_DAC(MGA1064_PIX_CLK_CTL, tmp); + + return 0; +} + +static int mga_g200eh_set_plls(struct mga_device *mdev, long clock) +{ + unsigned int vcomax, vcomin, pllreffreq; + unsigned int delta, tmpdelta, permitteddelta; + unsigned int testp, testm, testn; + unsigned int p, m, n; + unsigned int computed; + int i, j, tmpcount, vcount; + u8 tmp; + bool pll_locked = false; + + m = n = p = 0; + vcomax = 800000; + vcomin = 400000; + pllreffreq = 3333; + + delta = 0xffffffff; + permitteddelta = clock * 5 / 1000; + + for (testp = 16; testp > 0; testp--) { + if (clock * testp > vcomax) + continue; + if (clock * testp < vcomin) + continue; + + for (testm = 1; testm < 33; testm++) { + for (testn = 1; testn < 257; testn++) { + computed = (pllreffreq * testn) / + (testm * testp); + if (computed > clock) + tmpdelta = computed - clock; + else + tmpdelta = clock - computed; + if (tmpdelta < delta) { + delta = tmpdelta; + n = testn - 1; + m = (testm - 1) | ((n >> 1) & 0x80); + p = testp - 1; + } + if ((clock * testp) >= 600000) + p |= 80; + } + } + } + for (i = 0; i <= 32 && pll_locked == false; i++) { + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp |= MGA1064_PIX_CLK_CTL_CLK_DIS; + WREG_DAC(MGA1064_PIX_CLK_CTL_CLK_DIS, tmp); + + tmp = RREG8(MGAREG_MEM_MISC_READ); + tmp |= 0x3 << 2; + WREG8(MGAREG_MEM_MISC_WRITE, tmp); + + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp |= MGA1064_PIX_CLK_CTL_CLK_POW_DOWN; + WREG_DAC(MGA1064_PIX_CLK_CTL, tmp); + + udelay(500); + + WREG_DAC(MGA1064_EH_PIX_PLLC_M, m); + WREG_DAC(MGA1064_EH_PIX_PLLC_N, n); + WREG_DAC(MGA1064_EH_PIX_PLLC_P, p); + + udelay(500); + + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp &= ~MGA1064_PIX_CLK_CTL_SEL_MSK; + tmp |= MGA1064_PIX_CLK_CTL_SEL_PLL; + WREG_DAC(MGA1064_PIX_CLK_CTL, tmp); + + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp &= ~MGA1064_PIX_CLK_CTL_CLK_DIS; + tmp &= ~MGA1064_PIX_CLK_CTL_CLK_POW_DOWN; + WREG_DAC(MGA1064_PIX_CLK_CTL, tmp); + + vcount = RREG8(MGAREG_VCOUNT); + + for (j = 0; j < 30 && pll_locked == false; j++) { + tmpcount = RREG8(MGAREG_VCOUNT); + if (tmpcount < vcount) + vcount = 0; + if ((tmpcount - vcount) > 2) + pll_locked = true; + else + udelay(5); + } + } + + return 0; +} + +static int mga_g200er_set_plls(struct mga_device *mdev, long clock) +{ + unsigned int vcomax, vcomin, pllreffreq; + unsigned int delta, tmpdelta; + unsigned int testr, testn, testm, testo; + unsigned int p, m, n; + unsigned int computed; + int tmp; + + m = n = p = 0; + vcomax = 1488000; + vcomin = 1056000; + pllreffreq = 48000; + + delta = 0xffffffff; + + for (testr = 0; testr < 4; testr++) { + if (delta == 0) + break; + for (testn = 5; testn < 129; testn++) { + if (delta == 0) + break; + for (testm = 3; testm >= 0; testm--) { + if (delta == 0) + break; + for (testo = 5; testo < 33; testo++) { + computed = pllreffreq * (testn + 1) / + (testr + 1); + if (computed < vcomin) + continue; + if (computed > vcomax) + continue; + if (computed > clock) + tmpdelta = computed - clock; + else + tmpdelta = clock - computed; + if (tmpdelta < delta) { + delta = tmpdelta; + m = testm | (testo << 3); + n = testn; + p = testr | (testr << 3); + } + } + } + } + } + + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp |= MGA1064_PIX_CLK_CTL_CLK_DIS; + WREG_DAC(MGA1064_PIX_CLK_CTL_CLK_DIS, tmp); + + WREG8(DAC_INDEX, MGA1064_REMHEADCTL); + tmp = RREG8(DAC_DATA); + tmp |= MGA1064_REMHEADCTL_CLKDIS; + WREG_DAC(MGA1064_REMHEADCTL, tmp); + + tmp = RREG8(MGAREG_MEM_MISC_READ); + tmp |= (0x3<<2) | 0xc0; + WREG8(MGAREG_MEM_MISC_WRITE, tmp); + + WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL); + tmp = RREG8(DAC_DATA); + tmp &= ~MGA1064_PIX_CLK_CTL_CLK_DIS; + tmp |= MGA1064_PIX_CLK_CTL_CLK_POW_DOWN; + WREG_DAC(MGA1064_PIX_CLK_CTL, tmp); + + udelay(500); + + WREG_DAC(MGA1064_ER_PIX_PLLC_N, n); + WREG_DAC(MGA1064_ER_PIX_PLLC_M, m); + WREG_DAC(MGA1064_ER_PIX_PLLC_P, p); + + udelay(50); + + return 0; +} + +static int mga_crtc_set_plls(struct mga_device *mdev, long clock) +{ + switch(mdev->type) { + case G200_SE_A: + case G200_SE_B: + return mga_g200se_set_plls(mdev, clock); + break; + case G200_WB: + return mga_g200wb_set_plls(mdev, clock); + break; + case G200_EV: + return mga_g200ev_set_plls(mdev, clock); + break; + case G200_EH: + return mga_g200eh_set_plls(mdev, clock); + break; + case G200_ER: + return mga_g200er_set_plls(mdev, clock); + break; + } + return 0; +} + +static void mga_g200wb_prepare(struct drm_crtc *crtc) +{ + struct mga_device *mdev = crtc->dev->dev_private; + u8 tmp; + int iter_max; + + /* 1- The first step is to warn the BMC of an upcoming mode change. + * We are putting the misc<0> to output.*/ + + WREG8(DAC_INDEX, MGA1064_GEN_IO_CTL); + tmp = RREG8(DAC_DATA); + tmp |= 0x10; + WREG_DAC(MGA1064_GEN_IO_CTL, tmp); + + /* we are putting a 1 on the misc<0> line */ + WREG8(DAC_INDEX, MGA1064_GEN_IO_DATA); + tmp = RREG8(DAC_DATA); + tmp |= 0x10; + WREG_DAC(MGA1064_GEN_IO_DATA, tmp); + + /* 2- Second step to mask and further scan request + * This will be done by asserting the remfreqmsk bit (XSPAREREG<7>) + */ + WREG8(DAC_INDEX, MGA1064_SPAREREG); + tmp = RREG8(DAC_DATA); + tmp |= 0x80; + WREG_DAC(MGA1064_SPAREREG, tmp); + + /* 3a- the third step is to verifu if there is an active scan + * We are searching for a 0 on remhsyncsts <XSPAREREG<0>) + */ + iter_max = 300; + while (!(tmp & 0x1) && iter_max) { + WREG8(DAC_INDEX, MGA1064_SPAREREG); + tmp = RREG8(DAC_DATA); + udelay(1000); + iter_max--; + } + + /* 3b- this step occurs only if the remove is actually scanning + * we are waiting for the end of the frame which is a 1 on + * remvsyncsts (XSPAREREG<1>) + */ + if (iter_max) { + iter_max = 300; + while ((tmp & 0x2) && iter_max) { + WREG8(DAC_INDEX, MGA1064_SPAREREG); + tmp = RREG8(DAC_DATA); + udelay(1000); + iter_max--; + } + } +} + +static void mga_g200wb_commit(struct drm_crtc *crtc) +{ + u8 tmp; + struct mga_device *mdev = crtc->dev->dev_private; + + /* 1- The first step is to ensure that the vrsten and hrsten are set */ + WREG8(MGAREG_CRTCEXT_INDEX, 1); + tmp = RREG8(MGAREG_CRTCEXT_DATA); + WREG8(MGAREG_CRTCEXT_DATA, tmp | 0x88); + + /* 2- second step is to assert the rstlvl2 */ + WREG8(DAC_INDEX, MGA1064_REMHEADCTL2); + tmp = RREG8(DAC_DATA); + tmp |= 0x8; + WREG8(DAC_DATA, tmp); + + /* wait 10 us */ + udelay(10); + + /* 3- deassert rstlvl2 */ + tmp &= ~0x08; + WREG8(DAC_INDEX, MGA1064_REMHEADCTL2); + WREG8(DAC_DATA, tmp); + + /* 4- remove mask of scan request */ + WREG8(DAC_INDEX, MGA1064_SPAREREG); + tmp = RREG8(DAC_DATA); + tmp &= ~0x80; + WREG8(DAC_DATA, tmp); + + /* 5- put back a 0 on the misc<0> line */ + WREG8(DAC_INDEX, MGA1064_GEN_IO_DATA); + tmp = RREG8(DAC_DATA); + tmp &= ~0x10; + WREG_DAC(MGA1064_GEN_IO_DATA, tmp); +} + + +void mga_set_start_address(struct drm_crtc *crtc, unsigned offset) +{ + struct mga_device *mdev = crtc->dev->dev_private; + u32 addr; + int count; + + while (RREG8(0x1fda) & 0x08); + while (!(RREG8(0x1fda) & 0x08)); + + count = RREG8(MGAREG_VCOUNT) + 2; + while (RREG8(MGAREG_VCOUNT) < count); + + addr = offset >> 2; + WREG_CRT(0x0d, (u8)(addr & 0xff)); + WREG_CRT(0x0c, (u8)(addr >> 8) & 0xff); + WREG_CRT(0xaf, (u8)(addr >> 16) & 0xf); +} + + +/* ast is different - we will force move buffers out of VRAM */ +static int mga_crtc_do_set_base(struct drm_crtc *crtc, + struct drm_framebuffer *fb, + int x, int y, int atomic) +{ + struct mga_device *mdev = crtc->dev->dev_private; + struct drm_gem_object *obj; + struct mga_framebuffer *mga_fb; + struct mgag200_bo *bo; + int ret; + u64 gpu_addr; + + /* push the previous fb to system ram */ + if (!atomic && fb) { + mga_fb = to_mga_framebuffer(fb); + obj = mga_fb->obj; + bo = gem_to_mga_bo(obj); + ret = mgag200_bo_reserve(bo, false); + if (ret) + return ret; + mgag200_bo_push_sysram(bo); + mgag200_bo_unreserve(bo); + } + + mga_fb = to_mga_framebuffer(crtc->fb); + obj = mga_fb->obj; + bo = gem_to_mga_bo(obj); + + ret = mgag200_bo_reserve(bo, false); + if (ret) + return ret; + + ret = mgag200_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr); + if (ret) { + mgag200_bo_unreserve(bo); + return ret; + } + + if (&mdev->mfbdev->mfb == mga_fb) { + /* if pushing console in kmap it */ + ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap); + if (ret) + DRM_ERROR("failed to kmap fbcon\n"); + + } + mgag200_bo_unreserve(bo); + + DRM_INFO("mga base %llx\n", gpu_addr); + + mga_set_start_address(crtc, (u32)gpu_addr); + + return 0; +} + +static int mga_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, + struct drm_framebuffer *old_fb) +{ + return mga_crtc_do_set_base(crtc, old_fb, x, y, 0); +} + +static int mga_crtc_mode_set(struct drm_crtc *crtc, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode, + int x, int y, struct drm_framebuffer *old_fb) +{ + struct drm_device *dev = crtc->dev; + struct mga_device *mdev = dev->dev_private; + int hdisplay, hsyncstart, hsyncend, htotal; + int vdisplay, vsyncstart, vsyncend, vtotal; + int pitch; + int option = 0, option2 = 0; + int i; + unsigned char misc = 0; + unsigned char ext_vga[6]; + unsigned char ext_vga_index24; + unsigned char dac_index90 = 0; + u8 bppshift; + + 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 + }; + + bppshift = mdev->bpp_shifts[(crtc->fb->bits_per_pixel >> 3) - 1]; + + 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: + 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: + dacvalue[MGA1064_MISC_CTL] = MGA1064_MISC_CTL_VGA8 | + MGA1064_MISC_CTL_DAC_RAM_CS; + option = 0x00000120; + option2 = 0x0000b000; + break; + case G200_ER: + dac_index90 = 0; + break; + } + + switch (crtc->fb->bits_per_pixel) { + case 8: + dacvalue[MGA1064_MUL_CTL] = MGA1064_MUL_CTL_8bits; + break; + case 16: + if (crtc->fb->depth == 15) + dacvalue[MGA1064_MUL_CTL] = MGA1064_MUL_CTL_15bits; + else + dacvalue[MGA1064_MUL_CTL] = MGA1064_MUL_CTL_16bits; + break; + case 24: + dacvalue[MGA1064_MUL_CTL] = MGA1064_MUL_CTL_24bits; + break; + case 32: + dacvalue[MGA1064_MUL_CTL] = MGA1064_MUL_CTL_32_24bits; + break; + } + + if (mode->flags & DRM_MODE_FLAG_NHSYNC) + misc |= 0x40; + if (mode->flags & DRM_MODE_FLAG_NVSYNC) + misc |= 0x80; + + + for (i = 0; i < sizeof(dacvalue); i++) { + if ((i <= 0x03) || + (i == 0x07) || + (i == 0x0b) || + (i == 0x0f) || + ((i >= 0x13) && (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) && + (i >= 0x44) && (i <= 0x4e)) + continue; + + WREG_DAC(i, dacvalue[i]); + } + + if (mdev->type == G200_ER) { + WREG_DAC(0x90, dac_index90); + } + + + 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); + + pitch = crtc->fb->pitches[0] / (crtc->fb->bits_per_pixel / 8); + if (crtc->fb->bits_per_pixel == 24) + pitch = pitch >> (4 - bppshift); + else + pitch = pitch >> (4 - bppshift); + + hdisplay = mode->hdisplay / 8 - 1; + hsyncstart = mode->hsync_start / 8 - 1; + hsyncend = mode->hsync_end / 8 - 1; + htotal = mode->htotal / 8 - 1; + + /* Work around hardware quirk */ + if ((htotal & 0x07) == 0x06 || (htotal & 0x07) == 0x04) + htotal++; + + vdisplay = mode->vdisplay - 1; + vsyncstart = mode->vsync_start - 1; + vsyncend = mode->vsync_end - 1; + vtotal = mode->vtotal - 2; + + WREG_GFX(0, 0); + WREG_GFX(1, 0); + WREG_GFX(2, 0); + WREG_GFX(3, 0); + WREG_GFX(4, 0); + WREG_GFX(5, 0x40); + WREG_GFX(6, 0x5); + WREG_GFX(7, 0xf); + WREG_GFX(8, 0xf); + + WREG_CRT(0, htotal - 4); + WREG_CRT(1, hdisplay); + WREG_CRT(2, hdisplay); + WREG_CRT(3, (htotal & 0x1F) | 0x80); + WREG_CRT(4, hsyncstart); + WREG_CRT(5, ((htotal & 0x20) << 2) | (hsyncend & 0x1F)); + WREG_CRT(6, vtotal & 0xFF); + WREG_CRT(7, ((vtotal & 0x100) >> 8) | + ((vdisplay & 0x100) >> 7) | + ((vsyncstart & 0x100) >> 6) | + ((vdisplay & 0x100) >> 5) | + ((vdisplay & 0x100) >> 4) | /* linecomp */ + ((vtotal & 0x200) >> 4)| + ((vdisplay & 0x200) >> 3) | + ((vsyncstart & 0x200) >> 2)); + WREG_CRT(9, ((vdisplay & 0x200) >> 4) | + ((vdisplay & 0x200) >> 3)); + WREG_CRT(10, 0); + WREG_CRT(11, 0); + WREG_CRT(12, 0); + WREG_CRT(13, 0); + WREG_CRT(14, 0); + WREG_CRT(15, 0); + WREG_CRT(16, vsyncstart & 0xFF); + WREG_CRT(17, (vsyncend & 0x0F) | 0x20); + WREG_CRT(18, vdisplay & 0xFF); + WREG_CRT(19, pitch & 0xFF); + WREG_CRT(20, 0); + WREG_CRT(21, vdisplay & 0xFF); + WREG_CRT(22, (vtotal + 1) & 0xFF); + WREG_CRT(23, 0xc3); + WREG_CRT(24, vdisplay & 0xFF); + + ext_vga[0] = 0; + ext_vga[5] = 0; + + /* TODO interlace */ + + ext_vga[0] |= (pitch & 0x300) >> 4; + ext_vga[1] = (((htotal - 4) & 0x100) >> 8) | + ((hdisplay & 0x100) >> 7) | + ((hsyncstart & 0x100) >> 6) | + (htotal & 0x40); + ext_vga[2] = ((vtotal & 0xc00) >> 10) | + ((vdisplay & 0x400) >> 8) | + ((vdisplay & 0xc00) >> 7) | + ((vsyncstart & 0xc00) >> 5) | + ((vdisplay & 0x400) >> 3); + if (crtc->fb->bits_per_pixel == 24) + ext_vga[3] = (((1 << bppshift) * 3) - 1) | 0x80; + else + ext_vga[3] = ((1 << bppshift) - 1) | 0x80; + ext_vga[4] = 0; + if (mdev->type == G200_WB) + ext_vga[1] |= 0x88; + + ext_vga_index24 = 0x05; + + /* Set pixel clocks */ + misc = 0x2d; + WREG8(MGA_MISC_OUT, misc); + + mga_crtc_set_plls(mdev, mode->clock); + + for (i = 0; i < 6; i++) { + WREG_ECRT(i, ext_vga[i]); + } + + if (mdev->type == G200_ER) + WREG_ECRT(24, ext_vga_index24); + + if (mdev->type == G200_EV) { + WREG_ECRT(6, 0); + } + + WREG_ECRT(0, ext_vga[0]); + /* Enable mga pixel clock */ + misc = 0x2d; + + WREG8(MGA_MISC_OUT, misc); + + if (adjusted_mode) + memcpy(&mdev->mode, mode, sizeof(struct drm_display_mode)); + + mga_crtc_do_set_base(crtc, old_fb, x, y, 0); + + /* reset tagfifo */ + if (mdev->type == G200_ER) { + u32 mem_ctl = RREG32(MGAREG_MEMCTL); + u8 seq1; + + /* screen off */ + WREG8(MGAREG_SEQ_INDEX, 0x01); + seq1 = RREG8(MGAREG_SEQ_DATA) | 0x20; + WREG8(MGAREG_SEQ_DATA, seq1); + + WREG32(MGAREG_MEMCTL, mem_ctl | 0x00200000); + udelay(1000); + WREG32(MGAREG_MEMCTL, mem_ctl & ~0x00200000); + + WREG8(MGAREG_SEQ_DATA, seq1 & ~0x20); + } + + + if (IS_G200_SE(mdev)) { + if (mdev->reg_1e24 >= 0x02) { + u8 hi_pri_lvl; + u32 bpp; + u32 mb; + + if (crtc->fb->bits_per_pixel > 16) + bpp = 32; + else if (crtc->fb->bits_per_pixel > 8) + bpp = 16; + else + bpp = 8; + + mb = (mode->clock * bpp) / 1000; + if (mb > 3100) + hi_pri_lvl = 0; + else if (mb > 2600) + hi_pri_lvl = 1; + else if (mb > 1900) + hi_pri_lvl = 2; + else if (mb > 1160) + hi_pri_lvl = 3; + else if (mb > 440) + hi_pri_lvl = 4; + else + hi_pri_lvl = 5; + + WREG8(0x1fde, 0x06); + WREG8(0x1fdf, hi_pri_lvl); + } else { + if (mdev->reg_1e24 >= 0x01) + WREG8(0x1fdf, 0x03); + else + WREG8(0x1fdf, 0x04); + } + } + return 0; +} + +#if 0 /* code from mjg to attempt D3 on crtc dpms off - revisit later */ +static int mga_suspend(struct drm_crtc *crtc) +{ + struct mga_crtc *mga_crtc = to_mga_crtc(crtc); + struct drm_device *dev = crtc->dev; + struct mga_device *mdev = dev->dev_private; + struct pci_dev *pdev = dev->pdev; + int option; + + if (mdev->suspended) + return 0; + + WREG_SEQ(1, 0x20); + WREG_ECRT(1, 0x30); + /* Disable the pixel clock */ + WREG_DAC(0x1a, 0x05); + /* Power down the DAC */ + WREG_DAC(0x1e, 0x18); + /* Power down the pixel PLL */ + WREG_DAC(0x1a, 0x0d); + + /* Disable PLLs and clocks */ + pci_read_config_dword(pdev, PCI_MGA_OPTION, &option); + option &= ~(0x1F8024); + pci_write_config_dword(pdev, PCI_MGA_OPTION, option); + pci_set_power_state(pdev, PCI_D3hot); + pci_disable_device(pdev); + + mdev->suspended = true; + + return 0; +} + +static int mga_resume(struct drm_crtc *crtc) +{ + struct mga_crtc *mga_crtc = to_mga_crtc(crtc); + struct drm_device *dev = crtc->dev; + struct mga_device *mdev = dev->dev_private; + struct pci_dev *pdev = dev->pdev; + int option; + + if (!mdev->suspended) + return 0; + + pci_set_power_state(pdev, PCI_D0); + pci_enable_device(pdev); + + /* Disable sysclk */ + pci_read_config_dword(pdev, PCI_MGA_OPTION, &option); + option &= ~(0x4); + pci_write_config_dword(pdev, PCI_MGA_OPTION, option); + + mdev->suspended = false; + + return 0; +} + +#endif + +static void mga_crtc_dpms(struct drm_crtc *crtc, int mode) +{ + struct drm_device *dev = crtc->dev; + struct mga_device *mdev = dev->dev_private; + u8 seq1 = 0, crtcext1 = 0; + + switch (mode) { + case DRM_MODE_DPMS_ON: + seq1 = 0; + crtcext1 = 0; + mga_crtc_load_lut(crtc); + break; + case DRM_MODE_DPMS_STANDBY: + seq1 = 0x20; + crtcext1 = 0x10; + break; + case DRM_MODE_DPMS_SUSPEND: + seq1 = 0x20; + crtcext1 = 0x20; + break; + case DRM_MODE_DPMS_OFF: + seq1 = 0x20; + crtcext1 = 0x30; + break; + } + +#if 0 + if (mode == DRM_MODE_DPMS_OFF) { + mga_suspend(crtc); + } +#endif + WREG8(MGAREG_SEQ_INDEX, 0x01); + seq1 |= RREG8(MGAREG_SEQ_DATA) & ~0x20; + mga_wait_vsync(mdev); + mga_wait_busy(mdev); + WREG8(MGAREG_SEQ_DATA, seq1); + msleep(20); + WREG8(MGAREG_CRTCEXT_INDEX, 0x01); + crtcext1 |= RREG8(MGAREG_CRTCEXT_DATA) & ~0x30; + WREG8(MGAREG_CRTCEXT_DATA, crtcext1); + +#if 0 + if (mode == DRM_MODE_DPMS_ON && mdev->suspended == true) { + mga_resume(crtc); + drm_helper_resume_force_mode(dev); + } +#endif +} + +/* + * This is called before a mode is programmed. A typical use might be to + * enable DPMS during the programming to avoid seeing intermediate stages, + * but that's not relevant to us + */ +static void mga_crtc_prepare(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct mga_device *mdev = dev->dev_private; + u8 tmp; + + /* mga_resume(crtc);*/ + + WREG8(MGAREG_CRTC_INDEX, 0x11); + tmp = RREG8(MGAREG_CRTC_DATA); + WREG_CRT(0x11, tmp | 0x80); + + if (mdev->type == G200_SE_A || mdev->type == G200_SE_B) { + WREG_SEQ(0, 1); + msleep(50); + WREG_SEQ(1, 0x20); + msleep(20); + } else { + WREG8(MGAREG_SEQ_INDEX, 0x1); + tmp = RREG8(MGAREG_SEQ_DATA); + + /* start sync reset */ + WREG_SEQ(0, 1); + WREG_SEQ(1, tmp | 0x20); + } + + if (mdev->type == G200_WB) + mga_g200wb_prepare(crtc); + + WREG_CRT(17, 0); +} + +/* + * This is called after a mode is programmed. It should reverse anything done + * by the prepare function + */ +static void mga_crtc_commit(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct mga_device *mdev = dev->dev_private; + struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; + u8 tmp; + + if (mdev->type == G200_WB) + mga_g200wb_commit(crtc); + + if (mdev->type == G200_SE_A || mdev->type == G200_SE_B) { + msleep(50); + WREG_SEQ(1, 0x0); + msleep(20); + WREG_SEQ(0, 0x3); + } else { + WREG8(MGAREG_SEQ_INDEX, 0x1); + tmp = RREG8(MGAREG_SEQ_DATA); + + tmp &= ~0x20; + WREG_SEQ(0x1, tmp); + WREG_SEQ(0, 3); + } + crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); +} + +/* + * The core can pass us a set of gamma values to program. We actually only + * use this for 8-bit mode so can't perform smooth fades on deeper modes, + * but it's a requirement that we provide the function + */ +static void mga_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, + u16 *blue, uint32_t start, uint32_t size) +{ + struct mga_crtc *mga_crtc = to_mga_crtc(crtc); + int end = (start + size > MGAG200_LUT_SIZE) ? MGAG200_LUT_SIZE : start + size; + int i; + + for (i = start; i < end; i++) { + mga_crtc->lut_r[i] = red[i] >> 8; + mga_crtc->lut_g[i] = green[i] >> 8; + mga_crtc->lut_b[i] = blue[i] >> 8; + } + mga_crtc_load_lut(crtc); +} + +/* Simple cleanup function */ +static void mga_crtc_destroy(struct drm_crtc *crtc) +{ + struct mga_crtc *mga_crtc = to_mga_crtc(crtc); + + drm_crtc_cleanup(crtc); + kfree(mga_crtc); +} + +/* These provide the minimum set of functions required to handle a CRTC */ +static const struct drm_crtc_funcs mga_crtc_funcs = { + .gamma_set = mga_crtc_gamma_set, + .set_config = drm_crtc_helper_set_config, + .destroy = mga_crtc_destroy, +}; + +static const struct drm_crtc_helper_funcs mga_helper_funcs = { + .dpms = mga_crtc_dpms, + .mode_fixup = mga_crtc_mode_fixup, + .mode_set = mga_crtc_mode_set, + .mode_set_base = mga_crtc_mode_set_base, + .prepare = mga_crtc_prepare, + .commit = mga_crtc_commit, + .load_lut = mga_crtc_load_lut, +}; + +/* CRTC setup */ +static void mga_crtc_init(struct drm_device *dev) +{ + struct mga_device *mdev = dev->dev_private; + struct mga_crtc *mga_crtc; + int i; + + mga_crtc = kzalloc(sizeof(struct mga_crtc) + + (MGAG200FB_CONN_LIMIT * sizeof(struct drm_connector *)), + GFP_KERNEL); + + if (mga_crtc == NULL) + return; + + drm_crtc_init(dev, &mga_crtc->base, &mga_crtc_funcs); + + drm_mode_crtc_set_gamma_size(&mga_crtc->base, MGAG200_LUT_SIZE); + mdev->mode_info.crtc = mga_crtc; + + for (i = 0; i < MGAG200_LUT_SIZE; i++) { + mga_crtc->lut_r[i] = i; + mga_crtc->lut_g[i] = i; + mga_crtc->lut_b[i] = i; + } + + drm_crtc_helper_add(&mga_crtc->base, &mga_helper_funcs); +} + +/** Sets the color ramps on behalf of fbcon */ +void mga_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, + u16 blue, int regno) +{ + struct mga_crtc *mga_crtc = to_mga_crtc(crtc); + + mga_crtc->lut_r[regno] = red >> 8; + mga_crtc->lut_g[regno] = green >> 8; + mga_crtc->lut_b[regno] = blue >> 8; +} + +/** Gets the color ramps on behalf of fbcon */ +void mga_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, + u16 *blue, int regno) +{ + struct mga_crtc *mga_crtc = to_mga_crtc(crtc); + + *red = (u16)mga_crtc->lut_r[regno] << 8; + *green = (u16)mga_crtc->lut_g[regno] << 8; + *blue = (u16)mga_crtc->lut_b[regno] << 8; +} + +/* + * The encoder comes after the CRTC in the output pipeline, but before + * the connector. It's responsible for ensuring that the digital + * stream is appropriately converted into the output format. Setup is + * very simple in this case - all we have to do is inform qemu of the + * colour depth in order to ensure that it displays appropriately + */ + +/* + * These functions are analagous to those in the CRTC code, but are intended + * to handle any encoder-specific limitations + */ +static bool mga_encoder_mode_fixup(struct drm_encoder *encoder, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + return true; +} + +static void mga_encoder_mode_set(struct drm_encoder *encoder, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + +} + +static void mga_encoder_dpms(struct drm_encoder *encoder, int state) +{ + return; +} + +static void mga_encoder_prepare(struct drm_encoder *encoder) +{ +} + +static void mga_encoder_commit(struct drm_encoder *encoder) +{ +} + +void mga_encoder_destroy(struct drm_encoder *encoder) +{ + struct mga_encoder *mga_encoder = to_mga_encoder(encoder); + drm_encoder_cleanup(encoder); + kfree(mga_encoder); +} + +static const struct drm_encoder_helper_funcs mga_encoder_helper_funcs = { + .dpms = mga_encoder_dpms, + .mode_fixup = mga_encoder_mode_fixup, + .mode_set = mga_encoder_mode_set, + .prepare = mga_encoder_prepare, + .commit = mga_encoder_commit, +}; + +static const struct drm_encoder_funcs mga_encoder_encoder_funcs = { + .destroy = mga_encoder_destroy, +}; + +static struct drm_encoder *mga_encoder_init(struct drm_device *dev) +{ + struct drm_encoder *encoder; + struct mga_encoder *mga_encoder; + + mga_encoder = kzalloc(sizeof(struct mga_encoder), GFP_KERNEL); + if (!mga_encoder) + return NULL; + + encoder = &mga_encoder->base; + encoder->possible_crtcs = 0x1; + + drm_encoder_init(dev, encoder, &mga_encoder_encoder_funcs, + DRM_MODE_ENCODER_DAC); + drm_encoder_helper_add(encoder, &mga_encoder_helper_funcs); + + return encoder; +} + + +static int mga_vga_get_modes(struct drm_connector *connector) +{ + struct mga_connector *mga_connector = to_mga_connector(connector); + struct edid *edid; + int ret = 0; + + edid = drm_get_edid(connector, &mga_connector->i2c->adapter); + if (edid) { + drm_mode_connector_update_edid_property(connector, edid); + ret = drm_add_edid_modes(connector, edid); + connector->display_info.raw_edid = NULL; + kfree(edid); + } + return ret; +} + +static int mga_vga_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) +{ + /* FIXME: Add bandwidth and g200se limitations */ + + if (mode->crtc_hdisplay > 2048 || mode->crtc_hsync_start > 4096 || + mode->crtc_hsync_end > 4096 || mode->crtc_htotal > 4096 || + mode->crtc_vdisplay > 2048 || mode->crtc_vsync_start > 4096 || + mode->crtc_vsync_end > 4096 || mode->crtc_vtotal > 4096) { + return MODE_BAD; + } + + return MODE_OK; +} + +struct drm_encoder *mga_connector_best_encoder(struct drm_connector + *connector) +{ + int enc_id = connector->encoder_ids[0]; + struct drm_mode_object *obj; + struct drm_encoder *encoder; + + /* pick the encoder ids */ + if (enc_id) { + obj = + drm_mode_object_find(connector->dev, enc_id, + DRM_MODE_OBJECT_ENCODER); + if (!obj) + return NULL; + encoder = obj_to_encoder(obj); + return encoder; + } + return NULL; +} + +static enum drm_connector_status mga_vga_detect(struct drm_connector + *connector, bool force) +{ + return connector_status_connected; +} + +static void mga_connector_destroy(struct drm_connector *connector) +{ + struct mga_connector *mga_connector = to_mga_connector(connector); + mgag200_i2c_destroy(mga_connector->i2c); + drm_connector_cleanup(connector); + kfree(connector); +} + +struct drm_connector_helper_funcs mga_vga_connector_helper_funcs = { + .get_modes = mga_vga_get_modes, + .mode_valid = mga_vga_mode_valid, + .best_encoder = mga_connector_best_encoder, +}; + +struct drm_connector_funcs mga_vga_connector_funcs = { + .dpms = drm_helper_connector_dpms, + .detect = mga_vga_detect, + .fill_modes = drm_helper_probe_single_connector_modes, + .destroy = mga_connector_destroy, +}; + +static struct drm_connector *mga_vga_init(struct drm_device *dev) +{ + struct drm_connector *connector; + struct mga_connector *mga_connector; + + mga_connector = kzalloc(sizeof(struct mga_connector), GFP_KERNEL); + if (!mga_connector) + return NULL; + + connector = &mga_connector->base; + + drm_connector_init(dev, connector, + &mga_vga_connector_funcs, DRM_MODE_CONNECTOR_VGA); + + drm_connector_helper_add(connector, &mga_vga_connector_helper_funcs); + + mga_connector->i2c = mgag200_i2c_create(dev); + if (!mga_connector->i2c) + DRM_ERROR("failed to add ddc bus\n"); + + return connector; +} + + +int mgag200_modeset_init(struct mga_device *mdev) +{ + struct drm_encoder *encoder; + struct drm_connector *connector; + int ret; + + mdev->mode_info.mode_config_initialized = true; + + mdev->dev->mode_config.max_width = MGAG200_MAX_FB_WIDTH; + mdev->dev->mode_config.max_height = MGAG200_MAX_FB_HEIGHT; + + mdev->dev->mode_config.fb_base = mdev->mc.vram_base; + + mga_crtc_init(mdev->dev); + + encoder = mga_encoder_init(mdev->dev); + if (!encoder) { + DRM_ERROR("mga_encoder_init failed\n"); + return -1; + } + + connector = mga_vga_init(mdev->dev); + if (!connector) { + DRM_ERROR("mga_vga_init failed\n"); + return -1; + } + + drm_mode_connector_attach_encoder(connector, encoder); + + ret = mgag200_fbdev_init(mdev); + if (ret) { + DRM_ERROR("mga_fbdev_init failed\n"); + return ret; + } + + return 0; +} + +void mgag200_modeset_fini(struct mga_device *mdev) +{ + +} |