diff options
Diffstat (limited to 'drivers/gpu/drm/bochs/bochs_hw.c')
| -rw-r--r-- | drivers/gpu/drm/bochs/bochs_hw.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/drivers/gpu/drm/bochs/bochs_hw.c b/drivers/gpu/drm/bochs/bochs_hw.c index c90a0d492fd5..3e04b2f0ec08 100644 --- a/drivers/gpu/drm/bochs/bochs_hw.c +++ b/drivers/gpu/drm/bochs/bochs_hw.c @@ -86,9 +86,16 @@ static int bochs_get_edid_block(void *data, u8 *buf, int bochs_hw_load_edid(struct bochs_device *bochs) { + u8 header[8]; + if (!bochs->mmio) return -1; + /* check header to detect whenever edid support is enabled in qemu */ + bochs_get_edid_block(bochs, header, 0, ARRAY_SIZE(header)); + if (drm_edid_header_is_valid(header) != 8) + return -1; + kfree(bochs->edid); bochs->edid = drm_do_get_edid(&bochs->connector, bochs_get_edid_block, bochs); @@ -197,8 +204,7 @@ void bochs_hw_fini(struct drm_device *dev) } void bochs_hw_setmode(struct bochs_device *bochs, - struct drm_display_mode *mode, - const struct drm_format_info *format) + struct drm_display_mode *mode) { bochs->xres = mode->hdisplay; bochs->yres = mode->vdisplay; @@ -206,12 +212,8 @@ void bochs_hw_setmode(struct bochs_device *bochs, bochs->stride = mode->hdisplay * (bochs->bpp / 8); bochs->yres_virtual = bochs->fb_size / bochs->stride; - DRM_DEBUG_DRIVER("%dx%d @ %d bpp, format %c%c%c%c, vy %d\n", + DRM_DEBUG_DRIVER("%dx%d @ %d bpp, vy %d\n", bochs->xres, bochs->yres, bochs->bpp, - (format->format >> 0) & 0xff, - (format->format >> 8) & 0xff, - (format->format >> 16) & 0xff, - (format->format >> 24) & 0xff, bochs->yres_virtual); bochs_vga_writeb(bochs, 0x3c0, 0x20); /* unblank */ @@ -229,6 +231,16 @@ void bochs_hw_setmode(struct bochs_device *bochs, bochs_dispi_write(bochs, VBE_DISPI_INDEX_ENABLE, VBE_DISPI_ENABLED | VBE_DISPI_LFB_ENABLED); +} + +void bochs_hw_setformat(struct bochs_device *bochs, + const struct drm_format_info *format) +{ + DRM_DEBUG_DRIVER("format %c%c%c%c\n", + (format->format >> 0) & 0xff, + (format->format >> 8) & 0xff, + (format->format >> 16) & 0xff, + (format->format >> 24) & 0xff); switch (format->format) { case DRM_FORMAT_XRGB8888: |