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edid: Make refresh rate configurable

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Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20210427150824.638359-1-kraxel@redhat.com
Message-Id: <20210427150824.638359-6-kraxel@redhat.com>
This commit is contained in:
Akihiko Odaki 2021-04-27 17:08:21 +02:00 committed by Gerd Hoffmann
parent 4f9e268637
commit fce39fa737
2 changed files with 12 additions and 9 deletions
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9
hw/display/edid-generate.c
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@ -223,7 +223,7 @@ static void edid_desc_dummy(uint8_t *desc)
edid_desc_type(desc, 0x10);
}
static void edid_desc_timing(uint8_t *desc,
static void edid_desc_timing(uint8_t *desc, uint32_t refresh_rate,
uint32_t xres, uint32_t yres,
uint32_t xmm, uint32_t ymm)
{
@ -236,9 +236,9 @@ static void edid_desc_timing(uint8_t *desc,
uint32_t ysync = yres * 5 / 1000;
uint32_t yblank = yres * 35 / 1000;
uint32_t clock = 75 * (xres + xblank) * (yres + yblank);
uint64_t clock = (uint64_t)refresh_rate * (xres + xblank) * (yres + yblank);
stl_le_p(desc, clock / 10000);
stl_le_p(desc, clock / 10000000);
desc[2] = xres & 0xff;
desc[3] = xblank & 0xff;
@ -323,6 +323,7 @@ void qemu_edid_generate(uint8_t *edid, size_t size,
uint8_t *xtra3 = NULL;
uint8_t *dta = NULL;
uint32_t width_mm, height_mm;
uint32_t refresh_rate = info->refresh_rate ? info->refresh_rate : 75000;
uint32_t dpi = 100; /* if no width_mm/height_mm */
/* =============== set defaults =============== */
@ -420,7 +421,7 @@ void qemu_edid_generate(uint8_t *edid, size_t size,
/* =============== descriptor blocks =============== */
edid_desc_timing(desc, info->prefx, info->prefy,
edid_desc_timing(desc, refresh_rate, info->prefx, info->prefy,
width_mm, height_mm);
desc = edid_desc_next(edid, dta, desc);

4
include/hw/display/edid.h
View File

@ -11,6 +11,7 @@ typedef struct qemu_edid_info {
uint32_t prefy;
uint32_t maxx;
uint32_t maxy;
uint32_t refresh_rate;
} qemu_edid_info;
void qemu_edid_generate(uint8_t *edid, size_t size,
@ -25,6 +26,7 @@ uint32_t qemu_edid_dpi_to_mm(uint32_t dpi, uint32_t res);
DEFINE_PROP_UINT32("xres", _state, _edid_info.prefx, 0), \
DEFINE_PROP_UINT32("yres", _state, _edid_info.prefy, 0), \
DEFINE_PROP_UINT32("xmax", _state, _edid_info.maxx, 0), \
DEFINE_PROP_UINT32("ymax", _state, _edid_info.maxy, 0)
DEFINE_PROP_UINT32("ymax", _state, _edid_info.maxy, 0), \
DEFINE_PROP_UINT32("refresh_rate", _state, _edid_info.refresh_rate, 0)
#endif /* EDID_H */