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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2025 Icenowy Zheng <uwu@icenowy.me>
*/
#include <linux/errno.h>
#include <drm/drm_fourcc.h>
#include "vs_dc_top_regs.h"
#include "vs_hwdb.h"
static const u32 vs_primary_formats_array_no_yuv444[] = {
DRM_FORMAT_XRGB4444,
DRM_FORMAT_XBGR4444,
DRM_FORMAT_RGBX4444,
DRM_FORMAT_BGRX4444,
DRM_FORMAT_XRGB1555,
DRM_FORMAT_XBGR1555,
DRM_FORMAT_RGBX5551,
DRM_FORMAT_BGRX5551,
DRM_FORMAT_RGB565,
DRM_FORMAT_BGR565,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_XBGR8888,
DRM_FORMAT_RGBX8888,
DRM_FORMAT_BGRX8888,
/* TODO: non-RGB formats */
};
static const u32 vs_primary_formats_array_with_yuv444[] = {
DRM_FORMAT_XRGB4444,
DRM_FORMAT_XBGR4444,
DRM_FORMAT_RGBX4444,
DRM_FORMAT_BGRX4444,
DRM_FORMAT_XRGB1555,
DRM_FORMAT_XBGR1555,
DRM_FORMAT_RGBX5551,
DRM_FORMAT_BGRX5551,
DRM_FORMAT_RGB565,
DRM_FORMAT_BGR565,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_XBGR8888,
DRM_FORMAT_RGBX8888,
DRM_FORMAT_BGRX8888,
/* TODO: non-RGB formats */
};
static const struct vs_formats vs_formats_no_yuv444 = {
.primary_array = vs_primary_formats_array_no_yuv444,
.primary_num = ARRAY_SIZE(vs_primary_formats_array_no_yuv444)
};
static const struct vs_formats vs_formats_with_yuv444 = {
.primary_array = vs_primary_formats_array_with_yuv444,
.primary_num = ARRAY_SIZE(vs_primary_formats_array_with_yuv444)
};
static struct vs_chip_identity vs_chip_identities[] = {
{
.model = 0x8200,
.revision = 0x5720,
.customer_id = ~0U,
.display_count = 2,
.max_cursor_size = 64,
.formats = &vs_formats_no_yuv444,
},
{
.model = 0x8200,
.revision = 0x5721,
.customer_id = 0x30B,
.display_count = 2,
.max_cursor_size = 64,
.formats = &vs_formats_no_yuv444,
},
{
.model = 0x8200,
.revision = 0x5720,
.customer_id = 0x310,
.display_count = 2,
.max_cursor_size = 64,
.formats = &vs_formats_with_yuv444,
},
{
.model = 0x8200,
.revision = 0x5720,
.customer_id = 0x311,
.display_count = 2,
.max_cursor_size = 64,
.formats = &vs_formats_no_yuv444,
},
};
int vs_fill_chip_identity(struct regmap *regs,
struct vs_chip_identity *ident)
{
u32 model;
u32 revision;
u32 customer_id;
int i;
regmap_read(regs, VSDC_TOP_CHIP_MODEL, &model);
regmap_read(regs, VSDC_TOP_CHIP_REV, &revision);
regmap_read(regs, VSDC_TOP_CHIP_CUSTOMER_ID, &customer_id);
for (i = 0; i < ARRAY_SIZE(vs_chip_identities); i++) {
if (vs_chip_identities[i].model == model &&
vs_chip_identities[i].revision == revision &&
(vs_chip_identities[i].customer_id == customer_id ||
vs_chip_identities[i].customer_id == ~0U)) {
memcpy(ident, &vs_chip_identities[i], sizeof(*ident));
ident->customer_id = customer_id;
return 0;
}
}
return -EINVAL;
}
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