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-rw-r--r--minui/graphics_adf.c247
1 files changed, 247 insertions, 0 deletions
diff --git a/minui/graphics_adf.c b/minui/graphics_adf.c
new file mode 100644
index 000000000..ac6d64e9e
--- /dev/null
+++ b/minui/graphics_adf.c
@@ -0,0 +1,247 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <sys/cdefs.h>
+#include <sys/mman.h>
+
+#include <adf/adf.h>
+
+#include "graphics.h"
+
+struct adf_surface_pdata {
+ GRSurface base;
+ int fd;
+ __u32 offset;
+ __u32 pitch;
+};
+
+struct adf_pdata {
+ minui_backend base;
+ int intf_fd;
+ adf_id_t eng_id;
+ __u32 format;
+
+ unsigned int current_surface;
+ unsigned int n_surfaces;
+ struct adf_surface_pdata surfaces[2];
+};
+
+static gr_surface adf_flip(struct minui_backend *backend);
+static void adf_blank(struct minui_backend *backend, bool blank);
+
+static int adf_surface_init(struct adf_pdata *pdata,
+ struct drm_mode_modeinfo *mode, struct adf_surface_pdata *surf)
+{
+ memset(surf, 0, sizeof(*surf));
+
+ surf->fd = adf_interface_simple_buffer_alloc(pdata->intf_fd, mode->hdisplay,
+ mode->vdisplay, pdata->format, &surf->offset, &surf->pitch);
+ if (surf->fd < 0)
+ return surf->fd;
+
+ surf->base.width = mode->hdisplay;
+ surf->base.height = mode->vdisplay;
+ surf->base.row_bytes = surf->pitch;
+ surf->base.pixel_bytes = (pdata->format == DRM_FORMAT_RGB565) ? 2 : 4;
+
+ surf->base.data = mmap(NULL, surf->pitch * surf->base.height, PROT_WRITE,
+ MAP_SHARED, surf->fd, surf->offset);
+ if (surf->base.data == MAP_FAILED) {
+ close(surf->fd);
+ return -errno;
+ }
+
+ return 0;
+}
+
+static int adf_interface_init(struct adf_pdata *pdata)
+{
+ struct adf_interface_data intf_data;
+ int ret = 0;
+ int err;
+
+ err = adf_get_interface_data(pdata->intf_fd, &intf_data);
+ if (err < 0)
+ return err;
+
+ err = adf_surface_init(pdata, &intf_data.current_mode, &pdata->surfaces[0]);
+ if (err < 0) {
+ fprintf(stderr, "allocating surface 0 failed: %s\n", strerror(-err));
+ ret = err;
+ goto done;
+ }
+
+ err = adf_surface_init(pdata, &intf_data.current_mode,
+ &pdata->surfaces[1]);
+ if (err < 0) {
+ fprintf(stderr, "allocating surface 1 failed: %s\n", strerror(-err));
+ memset(&pdata->surfaces[1], 0, sizeof(pdata->surfaces[1]));
+ pdata->n_surfaces = 1;
+ } else {
+ pdata->n_surfaces = 2;
+ }
+
+done:
+ adf_free_interface_data(&intf_data);
+ return ret;
+}
+
+static int adf_device_init(struct adf_pdata *pdata, struct adf_device *dev)
+{
+ adf_id_t intf_id;
+ int intf_fd;
+ int err;
+
+ err = adf_find_simple_post_configuration(dev, &pdata->format, 1, &intf_id,
+ &pdata->eng_id);
+ if (err < 0)
+ return err;
+
+ err = adf_device_attach(dev, pdata->eng_id, intf_id);
+ if (err < 0 && err != -EALREADY)
+ return err;
+
+ pdata->intf_fd = adf_interface_open(dev, intf_id, O_RDWR);
+ if (pdata->intf_fd < 0)
+ return pdata->intf_fd;
+
+ err = adf_interface_init(pdata);
+ if (err < 0) {
+ close(pdata->intf_fd);
+ pdata->intf_fd = -1;
+ }
+
+ return err;
+}
+
+static gr_surface adf_init(minui_backend *backend)
+{
+ struct adf_pdata *pdata = (struct adf_pdata *)backend;
+ adf_id_t *dev_ids = NULL;
+ ssize_t n_dev_ids, i;
+ gr_surface ret;
+
+#if defined(RECOVERY_BGRA)
+ pdata->format = DRM_FORMAT_BGRA8888;
+#elif defined(RECOVERY_RGBX)
+ pdata->format = DRM_FORMAT_RGBX8888;
+#else
+ pdata->format = DRM_FORMAT_RGB565;
+#endif
+
+ n_dev_ids = adf_devices(&dev_ids);
+ if (n_dev_ids == 0) {
+ return NULL;
+ } else if (n_dev_ids < 0) {
+ fprintf(stderr, "enumerating adf devices failed: %s\n",
+ strerror(-n_dev_ids));
+ return NULL;
+ }
+
+ pdata->intf_fd = -1;
+
+ for (i = 0; i < n_dev_ids && pdata->intf_fd < 0; i++) {
+ struct adf_device dev;
+
+ int err = adf_device_open(dev_ids[i], O_RDWR, &dev);
+ if (err < 0) {
+ fprintf(stderr, "opening adf device %u failed: %s\n", dev_ids[i],
+ strerror(-err));
+ continue;
+ }
+
+ err = adf_device_init(pdata, &dev);
+ if (err < 0)
+ fprintf(stderr, "initializing adf device %u failed: %s\n",
+ dev_ids[i], strerror(-err));
+
+ adf_device_close(&dev);
+ }
+
+ free(dev_ids);
+
+ if (pdata->intf_fd < 0)
+ return NULL;
+
+ ret = adf_flip(backend);
+
+ adf_blank(backend, true);
+ adf_blank(backend, false);
+
+ return ret;
+}
+
+static gr_surface adf_flip(struct minui_backend *backend)
+{
+ struct adf_pdata *pdata = (struct adf_pdata *)backend;
+ struct adf_surface_pdata *surf = &pdata->surfaces[pdata->current_surface];
+
+ int fence_fd = adf_interface_simple_post(pdata->intf_fd, pdata->eng_id,
+ surf->base.width, surf->base.height, pdata->format, surf->fd,
+ surf->offset, surf->pitch, -1);
+ if (fence_fd >= 0)
+ close(fence_fd);
+
+ pdata->current_surface = (pdata->current_surface + 1) % pdata->n_surfaces;
+ return &pdata->surfaces[pdata->current_surface].base;
+}
+
+static void adf_blank(struct minui_backend *backend, bool blank)
+{
+ struct adf_pdata *pdata = (struct adf_pdata *)backend;
+ adf_interface_blank(pdata->intf_fd,
+ blank ? DRM_MODE_DPMS_OFF : DRM_MODE_DPMS_ON);
+}
+
+static void adf_surface_destroy(struct adf_surface_pdata *surf)
+{
+ munmap(surf->base.data, surf->pitch * surf->base.height);
+ close(surf->fd);
+}
+
+static void adf_exit(struct minui_backend *backend)
+{
+ struct adf_pdata *pdata = (struct adf_pdata *)backend;
+ unsigned int i;
+
+ for (i = 0; i < pdata->n_surfaces; i++)
+ adf_surface_destroy(&pdata->surfaces[i]);
+ if (pdata->intf_fd >= 0)
+ close(pdata->intf_fd);
+ free(pdata);
+}
+
+minui_backend *open_adf()
+{
+ struct adf_pdata *pdata = calloc(1, sizeof(*pdata));
+ if (!pdata) {
+ perror("allocating adf backend failed");
+ return NULL;
+ }
+
+ pdata->base.init = adf_init;
+ pdata->base.flip = adf_flip;
+ pdata->base.blank = adf_blank;
+ pdata->base.exit = adf_exit;
+ return &pdata->base;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 19:07:49 +0100