| /* |
| * Copyright (C) 2013 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 <dirent.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <malloc.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include <linux/limits.h> |
| |
| #include <sys/ioctl.h> |
| |
| #include <adf/adf.h> |
| |
| #define ADF_BASE_PATH "/dev/" |
| |
| static ssize_t adf_find_nodes(const char *pattern, adf_id_t **ids) |
| { |
| DIR *dir; |
| struct dirent *dirent; |
| size_t n = 0; |
| ssize_t ret; |
| adf_id_t *ids_ret = NULL; |
| |
| dir = opendir(ADF_BASE_PATH); |
| if (!dir) |
| return -errno; |
| |
| errno = 0; |
| while ((dirent = readdir(dir))) { |
| adf_id_t id; |
| int matched = sscanf(dirent->d_name, pattern, &id); |
| |
| if (matched < 0) { |
| ret = -errno; |
| goto done; |
| } else if (matched != 1) { |
| continue; |
| } |
| |
| adf_id_t *new_ids = realloc(ids_ret, (n + 1) * sizeof(ids_ret[0])); |
| if (!new_ids) { |
| ret = -ENOMEM; |
| goto done; |
| } |
| |
| ids_ret = new_ids; |
| ids_ret[n] = id; |
| n++; |
| } |
| if (errno) |
| ret = -errno; |
| else |
| ret = n; |
| |
| done: |
| closedir(dir); |
| if (ret < 0) |
| free(ids_ret); |
| else |
| *ids = ids_ret; |
| return ret; |
| } |
| |
| ssize_t adf_devices(adf_id_t **ids) |
| { |
| return adf_find_nodes("adf%u", ids); |
| } |
| |
| int adf_device_open(adf_id_t id, int flags, struct adf_device *dev) |
| { |
| char filename[64]; |
| int err; |
| |
| dev->id = id; |
| |
| snprintf(filename, sizeof(filename), ADF_BASE_PATH "adf%u", id); |
| dev->fd = open(filename, flags); |
| if (dev->fd < 0) |
| return -errno; |
| |
| return 0; |
| } |
| |
| void adf_device_close(struct adf_device *dev) |
| { |
| if (dev->fd >= 0) |
| close(dev->fd); |
| } |
| |
| int adf_get_device_data(struct adf_device *dev, struct adf_device_data *data) |
| { |
| int err; |
| int ret = 0; |
| |
| memset(data, 0, sizeof(*data)); |
| |
| err = ioctl(dev->fd, ADF_GET_DEVICE_DATA, data); |
| if (err < 0) |
| return -ENOMEM; |
| |
| if (data->n_attachments) { |
| data->attachments = malloc(sizeof(data->attachments[0]) * |
| data->n_attachments); |
| if (!data->attachments) |
| return -ENOMEM; |
| } |
| |
| if (data->n_allowed_attachments) { |
| data->allowed_attachments = |
| malloc(sizeof(data->allowed_attachments[0]) * |
| data->n_allowed_attachments); |
| if (!data->allowed_attachments) { |
| ret = -ENOMEM; |
| goto done; |
| } |
| } |
| |
| if (data->custom_data_size) { |
| data->custom_data = malloc(data->custom_data_size); |
| if (!data->custom_data) { |
| ret = -ENOMEM; |
| goto done; |
| } |
| } |
| |
| err = ioctl(dev->fd, ADF_GET_DEVICE_DATA, data); |
| if (err < 0) |
| ret = -errno; |
| |
| done: |
| if (ret < 0) |
| adf_free_device_data(data); |
| return ret; |
| } |
| |
| void adf_free_device_data(struct adf_device_data *data) |
| { |
| free(data->attachments); |
| free(data->allowed_attachments); |
| free(data->custom_data); |
| } |
| |
| int adf_device_post(struct adf_device *dev, |
| adf_id_t *interfaces, size_t n_interfaces, |
| struct adf_buffer_config *bufs, size_t n_bufs, |
| void *custom_data, size_t custom_data_size) |
| { |
| int err; |
| struct adf_post_config data; |
| |
| memset(&data, 0, sizeof(data)); |
| data.interfaces = interfaces; |
| data.n_interfaces = n_interfaces; |
| data.bufs = bufs; |
| data.n_bufs = n_bufs; |
| data.custom_data = custom_data; |
| data.custom_data_size = custom_data_size; |
| |
| err = ioctl(dev->fd, ADF_POST_CONFIG, &data); |
| if (err < 0) |
| return -errno; |
| |
| return (int)data.complete_fence; |
| } |
| |
| static int adf_device_attachment(struct adf_device *dev, |
| adf_id_t overlay_engine, adf_id_t interface, bool attach) |
| { |
| int err; |
| struct adf_attachment_config data; |
| |
| memset(&data, 0, sizeof(data)); |
| data.overlay_engine = overlay_engine; |
| data.interface = interface; |
| |
| err = ioctl(dev->fd, attach ? ADF_ATTACH : ADF_DETACH, &data); |
| if (err < 0) |
| return -errno; |
| |
| return 0; |
| } |
| |
| int adf_device_attach(struct adf_device *dev, adf_id_t overlay_engine, |
| adf_id_t interface) |
| { |
| return adf_device_attachment(dev, overlay_engine, interface, true); |
| } |
| |
| int adf_device_detach(struct adf_device *dev, adf_id_t overlay_engine, |
| adf_id_t interface) |
| { |
| return adf_device_attachment(dev, overlay_engine, interface, false); |
| } |
| |
| ssize_t adf_interfaces(struct adf_device *dev, adf_id_t **interfaces) |
| { |
| char pattern[64]; |
| |
| snprintf(pattern, sizeof(pattern), "adf-interface%u.%%u", dev->id); |
| return adf_find_nodes(pattern, interfaces); |
| } |
| |
| ssize_t adf_interfaces_for_overlay_engine(struct adf_device *dev, |
| adf_id_t overlay_engine, adf_id_t **interfaces) |
| { |
| struct adf_device_data data; |
| ssize_t n = 0; |
| ssize_t ret; |
| adf_id_t *ids_ret = NULL; |
| |
| ret = adf_get_device_data(dev, &data); |
| if (ret < 0) |
| return ret; |
| |
| size_t i; |
| for (i = 0; i < data.n_allowed_attachments; i++) { |
| if (data.allowed_attachments[i].overlay_engine != overlay_engine) |
| continue; |
| |
| adf_id_t *new_ids = realloc(ids_ret, (n + 1) * sizeof(ids_ret[0])); |
| if (!new_ids) { |
| ret = -ENOMEM; |
| goto done; |
| } |
| |
| ids_ret = new_ids; |
| ids_ret[n] = data.allowed_attachments[i].interface; |
| n++; |
| } |
| |
| ret = n; |
| |
| done: |
| adf_free_device_data(&data); |
| if (ret < 0) |
| free(ids_ret); |
| else |
| *interfaces = ids_ret; |
| return ret; |
| } |
| |
| static ssize_t adf_interfaces_filter(struct adf_device *dev, |
| adf_id_t *in, size_t n_in, adf_id_t **out, |
| bool (*filter)(struct adf_interface_data *data, __u32 match), |
| __u32 match) |
| { |
| size_t n = 0; |
| ssize_t ret; |
| adf_id_t *ids_ret = NULL; |
| |
| size_t i; |
| for (i = 0; i < n_in; i++) { |
| int fd = adf_interface_open(dev, in[i], O_RDONLY); |
| if (fd < 0) { |
| ret = fd; |
| goto done; |
| } |
| |
| struct adf_interface_data data; |
| ret = adf_get_interface_data(fd, &data); |
| close(fd); |
| if (ret < 0) |
| goto done; |
| |
| if (!filter(&data, match)) |
| continue; |
| |
| adf_id_t *new_ids = realloc(ids_ret, (n + 1) * sizeof(ids_ret[0])); |
| if (!new_ids) { |
| ret = -ENOMEM; |
| goto done; |
| } |
| |
| ids_ret = new_ids; |
| ids_ret[n] = in[i]; |
| n++; |
| } |
| |
| ret = n; |
| |
| done: |
| if (ret < 0) |
| free(ids_ret); |
| else |
| *out = ids_ret; |
| return ret; |
| } |
| |
| static bool adf_interface_type_filter(struct adf_interface_data *data, |
| __u32 type) |
| { |
| return data->type == (enum adf_interface_type)type; |
| } |
| |
| ssize_t adf_interfaces_filter_by_type(struct adf_device *dev, |
| enum adf_interface_type type, |
| adf_id_t *in, size_t n_in, adf_id_t **out) |
| { |
| return adf_interfaces_filter(dev, in, n_in, out, adf_interface_type_filter, |
| type); |
| } |
| |
| static bool adf_interface_flags_filter(struct adf_interface_data *data, |
| __u32 flag) |
| { |
| return !!(data->flags & flag); |
| } |
| |
| ssize_t adf_interfaces_filter_by_flag(struct adf_device *dev, __u32 flag, |
| adf_id_t *in, size_t n_in, adf_id_t **out) |
| { |
| return adf_interfaces_filter(dev, in, n_in, out, adf_interface_flags_filter, |
| flag); |
| } |
| |
| int adf_interface_open(struct adf_device *dev, adf_id_t id, int flags) |
| { |
| char filename[64]; |
| |
| snprintf(filename, sizeof(filename), ADF_BASE_PATH "adf-interface%u.%u", |
| dev->id, id); |
| |
| int fd = open(filename, flags); |
| if (fd < 0) |
| return -errno; |
| return fd; |
| } |
| |
| int adf_get_interface_data(int fd, struct adf_interface_data *data) |
| { |
| int err; |
| int ret = 0; |
| |
| memset(data, 0, sizeof(*data)); |
| |
| err = ioctl(fd, ADF_GET_INTERFACE_DATA, data); |
| if (err < 0) |
| return -errno; |
| |
| if (data->n_available_modes) { |
| data->available_modes = malloc(sizeof(data->available_modes[0]) * |
| data->n_available_modes); |
| if (!data->available_modes) |
| return -ENOMEM; |
| } |
| |
| if (data->custom_data_size) { |
| data->custom_data = malloc(data->custom_data_size); |
| if (!data->custom_data) { |
| ret = -ENOMEM; |
| goto done; |
| } |
| } |
| |
| err = ioctl(fd, ADF_GET_INTERFACE_DATA, data); |
| if (err < 0) |
| ret = -errno; |
| |
| done: |
| if (ret < 0) |
| adf_free_interface_data(data); |
| return ret; |
| } |
| |
| void adf_free_interface_data(struct adf_interface_data *data) |
| { |
| free(data->available_modes); |
| free(data->custom_data); |
| } |
| |
| int adf_interface_blank(int fd, __u8 mode) |
| { |
| int err = ioctl(fd, ADF_BLANK, mode); |
| if (err < 0) |
| return -errno; |
| return 0; |
| } |
| |
| int adf_interface_set_mode(int fd, struct drm_mode_modeinfo *mode) |
| { |
| int err = ioctl(fd, ADF_SET_MODE, mode); |
| if (err < 0) |
| return -errno; |
| return 0; |
| } |
| |
| int adf_interface_simple_buffer_alloc(int fd, __u32 w, __u32 h, |
| __u32 format, __u32 *offset, __u32 *pitch) |
| { |
| int err; |
| struct adf_simple_buffer_alloc data; |
| |
| memset(&data, 0, sizeof(data)); |
| data.w = w; |
| data.h = h; |
| data.format = format; |
| |
| err = ioctl(fd, ADF_SIMPLE_BUFFER_ALLOC, &data); |
| if (err < 0) |
| return -errno; |
| |
| *offset = data.offset; |
| *pitch = data.pitch; |
| return (int)data.fd; |
| } |
| |
| int adf_interface_simple_post(int fd, __u32 overlay_engine, |
| __u32 w, __u32 h, __u32 format, int buf_fd, __u32 offset, |
| __u32 pitch, int acquire_fence) |
| { |
| int ret; |
| struct adf_simple_post_config data; |
| |
| memset(&data, 0, sizeof(data)); |
| data.buf.overlay_engine = overlay_engine; |
| data.buf.w = w; |
| data.buf.h = h; |
| data.buf.format = format; |
| data.buf.fd[0] = buf_fd; |
| data.buf.offset[0] = offset; |
| data.buf.pitch[0] = pitch; |
| data.buf.n_planes = 1; |
| data.buf.acquire_fence = acquire_fence; |
| |
| ret = ioctl(fd, ADF_SIMPLE_POST_CONFIG, &data); |
| if (ret < 0) |
| return -errno; |
| |
| return (int)data.complete_fence; |
| } |
| |
| ssize_t adf_overlay_engines(struct adf_device *dev, adf_id_t **overlay_engines) |
| { |
| char pattern[64]; |
| |
| snprintf(pattern, sizeof(pattern), "adf-overlay-engine%u.%%u", dev->id); |
| return adf_find_nodes(pattern, overlay_engines); |
| } |
| |
| ssize_t adf_overlay_engines_for_interface(struct adf_device *dev, |
| adf_id_t interface, adf_id_t **overlay_engines) |
| { |
| struct adf_device_data data; |
| ssize_t n = 0; |
| ssize_t ret; |
| adf_id_t *ids_ret = NULL; |
| |
| ret = adf_get_device_data(dev, &data); |
| if (ret < 0) |
| return ret; |
| |
| size_t i; |
| for (i = 0; i < data.n_allowed_attachments; i++) { |
| if (data.allowed_attachments[i].interface != interface) |
| continue; |
| |
| adf_id_t *new_ids = realloc(ids_ret, (n + 1) * sizeof(ids_ret[0])); |
| if (!new_ids) { |
| ret = -ENOMEM; |
| goto done; |
| } |
| |
| ids_ret = new_ids; |
| ids_ret[n] = data.allowed_attachments[i].overlay_engine; |
| n++; |
| } |
| |
| ret = n; |
| |
| done: |
| adf_free_device_data(&data); |
| if (ret < 0) |
| free(ids_ret); |
| else |
| *overlay_engines = ids_ret; |
| return ret; |
| } |
| |
| static ssize_t adf_overlay_engines_filter(struct adf_device *dev, |
| adf_id_t *in, size_t n_in, adf_id_t **out, |
| bool (*filter)(struct adf_overlay_engine_data *data, void *cookie), |
| void *cookie) |
| { |
| size_t n = 0; |
| ssize_t ret; |
| adf_id_t *ids_ret = NULL; |
| |
| size_t i; |
| for (i = 0; i < n_in; i++) { |
| int fd = adf_overlay_engine_open(dev, in[i], O_RDONLY); |
| if (fd < 0) { |
| ret = fd; |
| goto done; |
| } |
| |
| struct adf_overlay_engine_data data; |
| ret = adf_get_overlay_engine_data(fd, &data); |
| close(fd); |
| if (ret < 0) |
| goto done; |
| |
| if (!filter(&data, cookie)) |
| continue; |
| |
| adf_id_t *new_ids = realloc(ids_ret, (n + 1) * sizeof(ids_ret[0])); |
| if (!new_ids) { |
| ret = -ENOMEM; |
| goto done; |
| } |
| |
| ids_ret = new_ids; |
| ids_ret[n] = in[i]; |
| n++; |
| } |
| |
| ret = n; |
| |
| done: |
| if (ret < 0) |
| free(ids_ret); |
| else |
| *out = ids_ret; |
| return ret; |
| } |
| |
| struct format_filter_cookie { |
| const __u32 *formats; |
| size_t n_formats; |
| }; |
| |
| static bool adf_overlay_engine_format_filter( |
| struct adf_overlay_engine_data *data, void *cookie) |
| { |
| struct format_filter_cookie *c = cookie; |
| size_t i; |
| for (i = 0; i < data->n_supported_formats; i++) { |
| size_t j; |
| for (j = 0; j < c->n_formats; j++) |
| if (data->supported_formats[i] == c->formats[j]) |
| return true; |
| } |
| return false; |
| } |
| |
| ssize_t adf_overlay_engines_filter_by_format(struct adf_device *dev, |
| const __u32 *formats, size_t n_formats, adf_id_t *in, size_t n_in, |
| adf_id_t **out) |
| { |
| struct format_filter_cookie cookie = { formats, n_formats }; |
| return adf_overlay_engines_filter(dev, in, n_in, out, |
| adf_overlay_engine_format_filter, &cookie); |
| } |
| |
| int adf_overlay_engine_open(struct adf_device *dev, adf_id_t id, int flags) |
| { |
| char filename[64]; |
| |
| snprintf(filename, sizeof(filename), |
| ADF_BASE_PATH "adf-overlay-engine%u.%u", dev->id, id); |
| |
| int fd = open(filename, flags); |
| if (fd < 0) |
| return -errno; |
| return fd; |
| } |
| |
| int adf_get_overlay_engine_data(int fd, struct adf_overlay_engine_data *data) |
| { |
| int err; |
| int ret = 0; |
| |
| memset(data, 0, sizeof(*data)); |
| |
| err = ioctl(fd, ADF_GET_OVERLAY_ENGINE_DATA, data); |
| if (err < 0) |
| return -errno; |
| |
| if (data->n_supported_formats) { |
| data->supported_formats = malloc(sizeof(data->supported_formats[0]) * |
| data->n_supported_formats); |
| if (!data->supported_formats) |
| return -ENOMEM; |
| } |
| |
| if (data->custom_data_size) { |
| data->custom_data = malloc(data->custom_data_size); |
| if (!data->custom_data) { |
| ret = -ENOMEM; |
| goto done; |
| } |
| } |
| |
| err = ioctl(fd, ADF_GET_OVERLAY_ENGINE_DATA, data); |
| if (err < 0) |
| ret = -errno; |
| |
| done: |
| if (ret < 0) |
| adf_free_overlay_engine_data(data); |
| return ret; |
| } |
| |
| void adf_free_overlay_engine_data(struct adf_overlay_engine_data *data) |
| { |
| free(data->supported_formats); |
| free(data->custom_data); |
| } |
| |
| bool adf_overlay_engine_supports_format(int fd, __u32 format) |
| { |
| struct adf_overlay_engine_data data; |
| bool ret = false; |
| size_t i; |
| |
| int err = adf_get_overlay_engine_data(fd, &data); |
| if (err < 0) |
| return false; |
| |
| for (i = 0; i < data.n_supported_formats; i++) { |
| if (data.supported_formats[i] == format) { |
| ret = true; |
| break; |
| } |
| } |
| |
| adf_free_overlay_engine_data(&data); |
| return ret; |
| } |
| |
| int adf_set_event(int fd, enum adf_event_type type, bool enabled) |
| { |
| struct adf_set_event data; |
| |
| data.type = type; |
| data.enabled = enabled; |
| |
| int err = ioctl(fd, ADF_SET_EVENT, &data); |
| if (err < 0) |
| return -errno; |
| return 0; |
| } |
| |
| int adf_read_event(int fd, struct adf_event **event) |
| { |
| struct adf_event header; |
| struct { |
| struct adf_event base; |
| uint8_t data[0]; |
| } *event_ret; |
| size_t data_size; |
| int ret = 0; |
| |
| int err = read(fd, &header, sizeof(header)); |
| if (err < 0) |
| return -errno; |
| if ((size_t)err < sizeof(header)) |
| return -EIO; |
| if (header.length < sizeof(header)) |
| return -EIO; |
| |
| event_ret = malloc(header.length); |
| if (!event_ret) |
| return -ENOMEM; |
| data_size = header.length - sizeof(header); |
| |
| memcpy(event_ret, &header, sizeof(header)); |
| ssize_t read_size = read(fd, &event_ret->data, data_size); |
| if (read_size < 0) { |
| ret = -errno; |
| goto done; |
| } |
| if ((size_t)read_size < data_size) { |
| ret = -EIO; |
| goto done; |
| } |
| |
| *event = &event_ret->base; |
| |
| done: |
| if (ret < 0) |
| free(event_ret); |
| return ret; |
| } |
| |
| void adf_format_str(__u32 format, char buf[ADF_FORMAT_STR_SIZE]) |
| { |
| buf[0] = format & 0xFF; |
| buf[1] = (format >> 8) & 0xFF; |
| buf[2] = (format >> 16) & 0xFF; |
| buf[3] = (format >> 24) & 0xFF; |
| buf[4] = '\0'; |
| } |
| |
| static bool adf_find_simple_post_overlay_engine(struct adf_device *dev, |
| const __u32 *formats, size_t n_formats, |
| adf_id_t interface, adf_id_t *overlay_engine) |
| { |
| adf_id_t *engs; |
| ssize_t n_engs = adf_overlay_engines_for_interface(dev, interface, &engs); |
| |
| if (n_engs <= 0) |
| return false; |
| |
| adf_id_t *filtered_engs; |
| ssize_t n_filtered_engs = adf_overlay_engines_filter_by_format(dev, |
| formats, n_formats, engs, n_engs, &filtered_engs); |
| free(engs); |
| |
| if (n_filtered_engs <= 0) |
| return false; |
| |
| *overlay_engine = filtered_engs[0]; |
| free(filtered_engs); |
| return true; |
| } |
| |
| static const __u32 any_rgb_format[] = { |
| DRM_FORMAT_C8, |
| DRM_FORMAT_RGB332, |
| DRM_FORMAT_BGR233, |
| DRM_FORMAT_XRGB1555, |
| DRM_FORMAT_XBGR1555, |
| DRM_FORMAT_RGBX5551, |
| DRM_FORMAT_BGRX5551, |
| DRM_FORMAT_ARGB1555, |
| DRM_FORMAT_ABGR1555, |
| DRM_FORMAT_RGBA5551, |
| DRM_FORMAT_BGRA5551, |
| DRM_FORMAT_RGB565, |
| DRM_FORMAT_BGR565, |
| DRM_FORMAT_RGB888, |
| DRM_FORMAT_BGR888, |
| DRM_FORMAT_XRGB8888, |
| DRM_FORMAT_XBGR8888, |
| DRM_FORMAT_RGBX8888, |
| DRM_FORMAT_BGRX8888, |
| DRM_FORMAT_XRGB2101010, |
| DRM_FORMAT_XBGR2101010, |
| DRM_FORMAT_RGBX1010102, |
| DRM_FORMAT_BGRX1010102, |
| DRM_FORMAT_ARGB2101010, |
| DRM_FORMAT_ABGR2101010, |
| DRM_FORMAT_RGBA1010102, |
| DRM_FORMAT_BGRA1010102, |
| DRM_FORMAT_ARGB8888, |
| DRM_FORMAT_ABGR8888, |
| DRM_FORMAT_RGBA8888, |
| DRM_FORMAT_BGRA8888, |
| }; |
| |
| int adf_find_simple_post_configuration(struct adf_device *dev, |
| const __u32 *formats, size_t n_formats, |
| adf_id_t *interface, adf_id_t *overlay_engine) |
| { |
| adf_id_t *intfs = NULL; |
| ssize_t n_intfs = adf_interfaces(dev, &intfs); |
| |
| if (n_intfs < 0) |
| return n_intfs; |
| else if (!n_intfs) |
| return -ENODEV; |
| |
| adf_id_t *primary_intfs; |
| ssize_t n_primary_intfs = adf_interfaces_filter_by_flag(dev, |
| ADF_INTF_FLAG_PRIMARY, intfs, n_intfs, &primary_intfs); |
| free(intfs); |
| |
| if (n_primary_intfs < 0) |
| return n_primary_intfs; |
| else if (!n_primary_intfs) |
| return -ENODEV; |
| |
| if (!formats) { |
| formats = any_rgb_format; |
| n_formats = sizeof(any_rgb_format) / sizeof(any_rgb_format[0]); |
| } |
| |
| bool found = false; |
| ssize_t i = 0; |
| for (i = 0; i < n_primary_intfs; i++) { |
| found = adf_find_simple_post_overlay_engine(dev, formats, n_formats, |
| primary_intfs[i], overlay_engine); |
| if (found) { |
| *interface = primary_intfs[i]; |
| break; |
| } |
| } |
| free(primary_intfs); |
| |
| if (!found) |
| return -ENODEV; |
| |
| return 0; |
| } |