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Diffstat (limited to 'backend')
-rw-r--r--backend/drm/drm.c119
1 files changed, 101 insertions, 18 deletions
diff --git a/backend/drm/drm.c b/backend/drm/drm.c
index 2523eaf0..d949cca8 100644
--- a/backend/drm/drm.c
+++ b/backend/drm/drm.c
@@ -150,14 +150,14 @@ static bool display_init_renderer(struct wlr_drm_renderer *renderer,
output->gbm = gbm_surface_create(renderer->gbm, mode->width,
mode->height, GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
if (!output->gbm) {
- wlr_log(L_ERROR, "Failed to create GBM surface for %s: %s", output->name,
+ wlr_log(L_ERROR, "Failed to create GBM surface for %s: %s", output->wlr_output->name,
strerror(errno));
return false;
}
output->egl = wlr_egl_create_surface(&renderer->egl, output->gbm);
if (output->egl == EGL_NO_SURFACE) {
- wlr_log(L_ERROR, "Failed to create EGL surface for %s", output->name);
+ wlr_log(L_ERROR, "Failed to create EGL surface for %s", output->wlr_output->name);
return false;
}
@@ -183,7 +183,7 @@ static bool wlr_drm_output_set_mode(struct wlr_output_state *output,
struct wlr_backend_state *state =
wl_container_of(output->renderer, state, renderer);
- wlr_log(L_INFO, "Modesetting '%s' with '%ux%u@%u mHz'", output->name,
+ wlr_log(L_INFO, "Modesetting '%s' with '%ux%u@%u mHz'", output->wlr_output->name,
mode->width, mode->height, mode->refresh);
drmModeConnector *conn = drmModeGetConnector(state->fd, output->connector);
@@ -193,7 +193,7 @@ static bool wlr_drm_output_set_mode(struct wlr_output_state *output,
}
if (conn->connection != DRM_MODE_CONNECTED || conn->count_modes == 0) {
- wlr_log(L_ERROR, "%s is not connected", output->name);
+ wlr_log(L_ERROR, "%s is not connected", output->wlr_output->name);
goto error;
}
@@ -228,7 +228,7 @@ static bool wlr_drm_output_set_mode(struct wlr_output_state *output,
drmModeFreeResources(res);
if (!success) {
- wlr_log(L_ERROR, "Failed to find CRTC for %s", output->name);
+ wlr_log(L_ERROR, "Failed to find CRTC for %s", output->wlr_output->name);
goto error;
}
@@ -238,7 +238,7 @@ static bool wlr_drm_output_set_mode(struct wlr_output_state *output,
output->wlr_output->current_mode = mode;
if (!display_init_renderer(&state->renderer, output)) {
- wlr_log(L_ERROR, "Failed to initalise renderer for %s", output->name);
+ wlr_log(L_ERROR, "Failed to initalise renderer for %s", output->wlr_output->name);
goto error;
}
@@ -298,6 +298,87 @@ static int32_t calculate_refresh_rate(drmModeModeInfo *mode) {
return refresh;
}
+// Constructed from http://edid.tv/manufacturer
+const char *get_manufacturer(uint16_t id) {
+#define ID(a, b, c) ((a & 0x1f) << 10) | ((b & 0x1f) << 5) | (c & 0x1f)
+ switch (id) {
+ case ID('A', 'A', 'A'): return "Avolites Ltd";
+ case ID('A', 'C', 'I'): return "Ancor Communications Inc";
+ case ID('A', 'C', 'R'): return "Acer Technologies";
+ case ID('A', 'P', 'P'): return "Apple Computer Inc";
+ case ID('B', 'N', 'O'): return "Bang & Olufsen";
+ case ID('C', 'M', 'N'): return "Chimei Innolux Corporation";
+ case ID('C', 'M', 'O'): return "Chi Mei Optoelectronics corp.";
+ case ID('C', 'R', 'O'): return "Extraordinary Technologies PTY Limited";
+ case ID('D', 'E', 'L'): return "Dell Inc.";
+ case ID('D', 'O', 'N'): return "DENON, Ltd.";
+ case ID('E', 'N', 'C'): return "Eizo Nanao Corporation";
+ case ID('E', 'P', 'H'): return "Epiphan Systems Inc.";
+ case ID('F', 'U', 'S'): return "Fujitsu Siemens Computers GmbH";
+ case ID('G', 'S', 'M'): return "Goldstar Company Ltd";
+ case ID('H', 'I', 'Q'): return "Kaohsiung Opto Electronics Americas, Inc.";
+ case ID('H', 'S', 'D'): return "HannStar Display Corp";
+ case ID('H', 'W', 'P'): return "Hewlett Packard";
+ case ID('I', 'N', 'T'): return "Interphase Corporation";
+ case ID('I', 'V', 'M'): return "Iiyama North America";
+ case ID('L', 'E', 'N'): return "Lenovo Group Limited";
+ case ID('M', 'A', 'X'): return "Rogen Tech Distribution Inc";
+ case ID('M', 'E', 'G'): return "Abeam Tech Ltd";
+ case ID('M', 'E', 'I'): return "Panasonic Industry Company";
+ case ID('M', 'T', 'C'): return "Mars-Tech Corporation";
+ case ID('M', 'T', 'X'): return "Matrox";
+ case ID('N', 'E', 'C'): return "NEC Corporation";
+ case ID('O', 'N', 'K'): return "ONKYO Corporation";
+ case ID('O', 'R', 'N'): return "ORION ELECTRIC CO., LTD.";
+ case ID('O', 'T', 'M'): return "Optoma Corporation";
+ case ID('O', 'V', 'R'): return "Oculus VR, Inc.";
+ case ID('P', 'H', 'L'): return "Philips Consumer Electronics Company";
+ case ID('P', 'I', 'O'): return "Pioneer Electronic Corporation";
+ case ID('P', 'N', 'R'): return "Planar Systems, Inc.";
+ case ID('Q', 'D', 'S'): return "Quanta Display Inc.";
+ case ID('S', 'A', 'M'): return "Samsung Electric Company";
+ case ID('S', 'E', 'C'): return "Seiko Epson Corporation";
+ case ID('S', 'H', 'P'): return "Sharp Corporation";
+ case ID('S', 'I', 'I'): return "Silicon Image, Inc.";
+ case ID('S', 'N', 'Y'): return "Sony";
+ case ID('T', 'O', 'P'): return "Orion Communications Co., Ltd.";
+ case ID('T', 'S', 'B'): return "Toshiba America Info Systems Inc";
+ case ID('T', 'S', 'T'): return "Transtream Inc";
+ case ID('U', 'N', 'K'): return "Unknown";
+ case ID('V', 'I', 'Z'): return "VIZIO, Inc";
+ case ID('V', 'S', 'C'): return "ViewSonic Corporation";
+ case ID('Y', 'M', 'H'): return "Yamaha Corporation";
+ default: return "Unknown";
+ }
+#undef ID
+}
+
+/* See https://en.wikipedia.org/wiki/Extended_Display_Identification_Data for layout of EDID data.
+ * We don't parse the EDID properly. We just expect to receive valid data.
+ */
+static void parse_edid(struct wlr_output *restrict output, const uint8_t *restrict data) {
+ uint32_t id = (data[8] << 8) | data[9];
+ snprintf(output->make, sizeof(output->make), "%s", get_manufacturer(id));
+
+ output->phys_width = ((data[68] & 0xf0) << 4) | data[66];
+ output->phys_height = ((data[68] & 0x0f) << 8) | data[67];
+
+ for (size_t i = 72; i <= 108; i += 18) {
+ uint16_t flag = (data[i] << 8) | data[i + 1];
+ if (flag == 0 && data[i + 3] == 0xFC) {
+ sprintf(output->model, "%.13s", &data[i + 5]);
+
+ // Monitor names are terminated by newline if they're too short
+ char *nl = strchr(output->model, '\n');
+ if (nl) {
+ *nl = '\0';
+ }
+
+ break;
+ }
+ }
+}
+
static void scan_property_ids(int fd, drmModeConnector *conn,
struct wlr_output_state *output) {
for (int i = 0; i < conn->count_props; ++i) {
@@ -306,16 +387,18 @@ static void scan_property_ids(int fd, drmModeConnector *conn,
continue;
}
- // I think this is guranteed to exist
if (strcmp(prop->name, "DPMS") == 0) {
output->props.dpms = prop->prop_id;
+ } else if (strcmp(prop->name, "EDID") == 0) {
+ drmModePropertyBlobRes *edid = drmModeGetPropertyBlob(fd, conn->prop_values[i]);
+ if (!edid) {
+ drmModeFreeProperty(prop);
+ continue;
+ }
- /* There may be more properties we want to get,
- * but since it's currently only this, we exit early
- */
+ parse_edid(output->wlr_output, edid->data);
- drmModeFreeProperty(prop);
- break;
+ drmModeFreePropertyBlob(edid);
}
drmModeFreeProperty(prop);
@@ -363,7 +446,7 @@ void wlr_drm_scan_connectors(struct wlr_backend_state *state) {
output->connector = id;
// TODO: Populate more wlr_output fields
// TODO: Move this to wlr_output->name
- snprintf(output->name, sizeof(output->name), "%s-%"PRIu32,
+ snprintf(wlr_output->name, sizeof(wlr_output->name), "%s-%"PRIu32,
conn_name[conn->connector_type],
conn->connector_type_id);
@@ -376,7 +459,7 @@ void wlr_drm_scan_connectors(struct wlr_backend_state *state) {
scan_property_ids(state->fd, conn, output);
list_add(state->outputs, output);
- wlr_log(L_INFO, "Found display '%s'", output->name);
+ wlr_log(L_INFO, "Found display '%s'", wlr_output->name);
} else {
output = state->outputs->items[index];
wlr_output = output->wlr_output;
@@ -386,7 +469,7 @@ void wlr_drm_scan_connectors(struct wlr_backend_state *state) {
if (output->state == DRM_OUTPUT_DISCONNECTED &&
conn->connection == DRM_MODE_CONNECTED) {
- wlr_log(L_INFO, "'%s' connected", output->name);
+ wlr_log(L_INFO, "'%s' connected", output->wlr_output->name);
wlr_log(L_INFO, "Detected modes:");
for (int i = 0; i < conn->count_modes; ++i) {
@@ -407,12 +490,12 @@ void wlr_drm_scan_connectors(struct wlr_backend_state *state) {
}
output->state = DRM_OUTPUT_NEEDS_MODESET;
- wlr_log(L_INFO, "Sending modesetting signal for '%s'", output->name);
+ wlr_log(L_INFO, "Sending modesetting signal for '%s'", output->wlr_output->name);
wl_signal_emit(&state->backend->events.output_add, wlr_output);
} else if (output->state == DRM_OUTPUT_CONNECTED &&
conn->connection != DRM_MODE_CONNECTED) {
- wlr_log(L_INFO, "'%s' disconnected", output->name);
+ wlr_log(L_INFO, "'%s' disconnected", output->wlr_output->name);
wlr_drm_output_cleanup(output, false);
}
@@ -487,7 +570,7 @@ void wlr_drm_output_cleanup(struct wlr_output_state *output, bool restore) {
if (restore) {
restore_output(output, renderer->fd);
}
- wlr_log(L_INFO, "Emmiting destruction signal for '%s'", output->name);
+ wlr_log(L_INFO, "Emmiting destruction signal for '%s'", output->wlr_output->name);
wl_signal_emit(&state->backend->events.output_remove, output->wlr_output);
break;
case DRM_OUTPUT_DISCONNECTED:
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-20 18:47:30 +0000