1 files changed, 404 insertions, 0 deletions
diff --git a/camera/exynos_jpeg.c b/camera/exynos_jpeg.c
new file mode 100644
index 0000000..24e74fc
--- /dev/null
+++ b/camera/exynos_jpeg.c
@@ -0,0 +1,404 @@
+/*
+ * Copyright (C) 2013 Paul Kocialkowski
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <malloc.h>
+#include <poll.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/mman.h>
+#include <sys/ioctl.h>
+
+#include <asm/types.h>
+
+#define LOG_TAG "exynos_jpeg"
+#include <utils/Log.h>
+
+#include "exynos_camera.h"
+
+#ifdef EXYNOS_JPEG_HW
+int exynos_jpeg_start(struct exynos_camera *exynos_camera,
+	struct exynos_jpeg *jpeg)
+{
+	struct jpeg_config config;
+	struct jpeg_buf *buffer_in;
+	struct jpeg_buf *buffer_out;
+	camera_memory_t *memory = NULL;
+#ifdef EXYNOS_ION
+	int memory_ion_fd = -1;
+#endif
+	int address;
+	int fd = -1;
+	int rc;
+
+	if (exynos_camera == NULL || jpeg == NULL)
+		return -EINVAL;
+
+	ALOGD("%s()", __func__);
+
+	if (jpeg->enabled) {
+		ALOGE("Jpeg was already started");
+		return -1;
+	}
+
+	buffer_in = &jpeg->buffer_in;
+	buffer_out = &jpeg->buffer_out;
+
+#ifdef EXYNOS_ION
+	jpeg->memory_in_ion_fd = -1;
+	jpeg->memory_out_ion_fd = -1;
+#endif
+
+	fd = jpeghal_enc_init();
+	if (fd < 0) {
+		ALOGE("%s: Unable to init jpeg encoder", __func__);
+		goto error;
+	}
+
+	jpeg->fd = fd;
+
+	memset(&config, 0, sizeof(config));
+	config.mode = JPEG_ENCODE;
+	config.width = jpeg->width;
+	config.height = jpeg->height;
+	config.num_planes = 1;
+	config.pix.enc_fmt.in_fmt = jpeg->format;
+	config.pix.enc_fmt.out_fmt = V4L2_PIX_FMT_JPEG_420;
+
+	if (jpeg->quality >= 90)
+		config.enc_qual = QUALITY_LEVEL_1;
+	else if (jpeg->quality >= 80)
+		config.enc_qual = QUALITY_LEVEL_2;
+	else if (jpeg->quality >= 70)
+		config.enc_qual = QUALITY_LEVEL_3;
+	else
+		config.enc_qual = QUALITY_LEVEL_4;
+
+	rc = jpeghal_enc_setconfig(fd, &config);
+	if (rc < 0) {
+		ALOGE("%s: Unable to set jpeg config", __func__);
+		goto error;
+	}
+
+	rc = jpeghal_s_ctrl(fd, V4L2_CID_CACHEABLE, 1);
+	if (rc < 0) {
+		ALOGE("%s: Unable to set cacheable control", __func__);
+		goto error;
+	}
+
+	memset(buffer_in, 0, sizeof(struct jpeg_buf));
+	buffer_in->memory = V4L2_MEMORY_MMAP;
+	buffer_in->num_planes = 1;
+
+	memset(buffer_out, 0, sizeof(struct jpeg_buf));
+	buffer_out->memory = V4L2_MEMORY_MMAP;
+	buffer_out->num_planes = 1;
+
+	rc = jpeghal_set_inbuf(fd, buffer_in);
+	if (rc < 0) {
+#ifdef EXYNOS_ION
+		// Input
+
+		buffer_in->memory = V4L2_MEMORY_USERPTR;
+		buffer_in->length[0] = exynos_camera_buffer_length(jpeg->width, jpeg->height, jpeg->format);
+
+		memory_ion_fd = exynos_ion_alloc(exynos_camera, buffer_in->length[0]);
+		if (memory_ion_fd < 0) {
+			ALOGE("%s: Unable to alloc input ION memory", __func__);
+			goto error;
+		}
+
+		address = exynos_ion_phys(exynos_camera, memory_ion_fd);
+
+		if (EXYNOS_CAMERA_CALLBACK_DEFINED(request_memory)) {
+			memory = exynos_camera->callbacks.request_memory(memory_ion_fd, buffer_in->length[0], 1, exynos_camera->callbacks.user);
+			if (memory == NULL || memory->data == NULL || memory->data == MAP_FAILED) {
+				ALOGE("%s: Unable to request memory", __func__);
+				goto error;
+			}
+		} else {
+			ALOGE("%s: No memory request function!", __func__);
+			goto error;
+		}
+
+		jpeg->memory_in = memory;
+		jpeg->memory_in_pointer = memory->data;
+		jpeg->memory_in_ion_fd = memory_ion_fd;
+		buffer_in->start[0] = (void *) address;
+
+		rc = jpeghal_set_inbuf(fd, buffer_in);
+		if (rc < 0) {
+			ALOGE("%s: Unable to set input buffer", __func__);
+			goto error;
+		}
+
+		// Output
+
+		buffer_out->memory = V4L2_MEMORY_USERPTR;
+		buffer_out->length[0] = jpeg->width * jpeg->height * 4;
+
+		memory_ion_fd = exynos_ion_alloc(exynos_camera, buffer_out->length[0]);
+		if (memory_ion_fd < 0) {
+			ALOGE("%s: Unable to alloc output ION memory", __func__);
+			goto error;
+		}
+
+		address = exynos_ion_phys(exynos_camera, memory_ion_fd);
+
+		if (EXYNOS_CAMERA_CALLBACK_DEFINED(request_memory)) {
+			memory = exynos_camera->callbacks.request_memory(memory_ion_fd, buffer_out->length[0], 1, exynos_camera->callbacks.user);
+			if (memory == NULL || memory->data == NULL || memory->data == MAP_FAILED) {
+				ALOGE("%s: Unable to request memory", __func__);
+				goto error;
+			}
+		} else {
+			ALOGE("%s: No memory request function!", __func__);
+			goto error;
+		}
+
+		jpeg->memory_out = memory;
+		jpeg->memory_out_pointer = memory->data;
+		jpeg->memory_out_ion_fd = memory_ion_fd;
+		buffer_out->start[0] = (void *) address;
+#else
+		ALOGE("%s: Unable to set input buffer", __func__);
+		goto error;
+#endif
+	} else {
+		jpeg->memory_in_pointer = buffer_in->start[0];
+		jpeg->memory_out_pointer = buffer_out->start[0];
+	}
+
+	rc = jpeghal_set_outbuf(fd, buffer_out);
+	if (rc < 0) {
+		ALOGE("%s: Unable to set output buffer", __func__);
+		goto error;
+	}
+
+	jpeg->enabled = 1;
+
+	rc = 0;
+	goto complete;
+
+error:
+	if (fd >= 0) {
+		// Avoid releasing unrequested mmap buffers
+
+		if (buffer_in->memory == 0)
+			buffer_in->memory = V4L2_MEMORY_USERPTR;
+
+		if (buffer_out->memory == 0)
+			buffer_out->memory = V4L2_MEMORY_USERPTR;
+
+		jpeghal_deinit(fd, buffer_in, buffer_out);
+		jpeg->fd = -1;
+	}
+
+	if (jpeg->memory_in != NULL && jpeg->memory_in->release != NULL) {
+		jpeg->memory_in->release(jpeg->memory_in);
+		jpeg->memory_in = NULL;
+#ifdef EXYNOS_ION
+		if (jpeg->memory_in_ion_fd >= 0) {
+			exynos_ion_free(exynos_camera, jpeg->memory_in_ion_fd);
+			jpeg->memory_in_ion_fd = -1;
+		}
+#endif
+	}
+
+	if (jpeg->memory_out != NULL && jpeg->memory_out->release != NULL) {
+		jpeg->memory_out->release(jpeg->memory_out);
+		jpeg->memory_out = NULL;
+
+#ifdef EXYNOS_ION
+		if (jpeg->memory_out_ion_fd >= 0) {
+			exynos_ion_free(exynos_camera, jpeg->memory_out_ion_fd);
+			jpeg->memory_out_ion_fd = -1;
+		}
+#endif
+	}
+
+	rc = -1;
+
+complete:
+	return rc;
+}
+
+void exynos_jpeg_stop(struct exynos_camera *exynos_camera,
+	struct exynos_jpeg *jpeg)
+{
+	struct jpeg_buf *buffer_in;
+	struct jpeg_buf *buffer_out;
+	int fd = -1;
+	int rc;
+
+	if (exynos_camera == NULL || jpeg == NULL)
+		return;
+
+	ALOGD("%s()", __func__);
+
+	if (!jpeg->enabled) {
+		ALOGE("Jpeg was already stopped");
+		return;
+	}
+
+	buffer_in = &jpeg->buffer_in;
+	buffer_out = &jpeg->buffer_out;
+
+	fd = jpeg->fd;
+
+	if (fd >= 0) {
+		jpeghal_deinit(fd, buffer_in, buffer_out);
+		jpeg->fd = -1;
+	}
+
+	if (jpeg->memory_in != NULL && jpeg->memory_in->release != NULL) {
+		jpeg->memory_in->release(jpeg->memory_in);
+		jpeg->memory_in = NULL;
+#ifdef EXYNOS_ION
+		if (jpeg->memory_in_ion_fd >= 0) {
+			exynos_ion_free(exynos_camera, jpeg->memory_in_ion_fd);
+			jpeg->memory_in_ion_fd = -1;
+		}
+#endif
+	}
+
+	if (jpeg->memory_out != NULL && jpeg->memory_out->release != NULL) {
+		jpeg->memory_out->release(jpeg->memory_out);
+		jpeg->memory_out = NULL;
+
+#ifdef EXYNOS_ION
+		if (jpeg->memory_out_ion_fd >= 0) {
+			exynos_ion_free(exynos_camera, jpeg->memory_out_ion_fd);
+			jpeg->memory_out_ion_fd = -1;
+		}
+#endif
+	}
+
+	jpeg->enabled = 0;
+}
+
+int exynos_jpeg(struct exynos_camera *exynos_camera, struct exynos_jpeg *jpeg)
+{
+	struct jpeg_buf *buffer_in;
+	struct jpeg_buf *buffer_out;
+	int memory_size;
+	int fd = -1;
+	int rc;
+
+	if (exynos_camera == NULL || jpeg == NULL)
+		return -EINVAL;
+
+	ALOGD("%s()", __func__);
+
+	if (!jpeg->enabled) {
+		ALOGE("Jpeg was not started");
+		return -1;
+	}
+
+	buffer_in = &jpeg->buffer_in;
+	buffer_out = &jpeg->buffer_out;
+
+	fd = jpeg->fd;
+	if (fd < 0) {
+		ALOGE("%s: Invalid jpeg fd", __func__);
+		goto error;
+	}
+
+#ifdef EXYNOS_ION
+	if (jpeg->memory_in != NULL && jpeg->memory_in_ion_fd >= 0) {
+		rc = exynos_ion_msync(exynos_camera, jpeg->memory_in_ion_fd, 0, buffer_in->length[0]);
+		if (rc < 0) {
+			ALOGE("%s: Unable to sync ION memory", __func__);
+			goto error;
+		}
+	}
+#endif
+
+	rc = jpeghal_enc_exe(fd, buffer_in, buffer_out);
+	if (rc < 0) {
+		ALOGE("%s: Unable to encode jpeg", __func__);
+		goto error;
+	}
+
+	memory_size = jpeghal_g_ctrl(fd, V4L2_CID_CAM_JPEG_ENCODEDSIZE);
+	if (memory_size <= 0) {
+		ALOGE("%s: Unable to get jpeg size", __func__);
+		goto error;
+	}
+
+	jpeg->memory_out_size = memory_size;
+
+#ifdef EXYNOS_ION
+	if (jpeg->memory_out != NULL && jpeg->memory_out_ion_fd >= 0) {
+		rc = exynos_ion_msync(exynos_camera, jpeg->memory_out_ion_fd, 0, memory_size);
+		if (rc < 0) {
+			ALOGE("%s: Unable to sync ION memory", __func__);
+			goto error;
+		}
+	}
+#endif
+
+	rc = 0;
+	goto complete;
+
+error:
+	if (fd >= 0) {
+		// Avoid releasing unrequested mmap buffers
+
+		if (buffer_in->memory == 0)
+			buffer_in->memory = V4L2_MEMORY_USERPTR;
+
+		if (buffer_out->memory == 0)
+			buffer_out->memory = V4L2_MEMORY_USERPTR;
+
+		jpeghal_deinit(fd, buffer_in, buffer_out);
+		jpeg->fd = -1;
+	}
+
+	if (jpeg->memory_in != NULL && jpeg->memory_in->release != NULL) {
+		jpeg->memory_in->release(jpeg->memory_in);
+		jpeg->memory_in = NULL;
+
+#ifdef EXYNOS_ION
+		if (jpeg->memory_in_ion_fd >= 0) {
+			exynos_ion_free(exynos_camera, jpeg->memory_in_ion_fd);
+			jpeg->memory_in_ion_fd = -1;
+		}
+#endif
+	}
+
+	if (jpeg->memory_out != NULL && jpeg->memory_out->release != NULL) {
+		jpeg->memory_out->release(jpeg->memory_out);
+		jpeg->memory_out = NULL;
+
+#ifdef EXYNOS_ION
+		if (jpeg->memory_out_ion_fd >= 0) {
+			exynos_ion_free(exynos_camera, jpeg->memory_out_ion_fd);
+			jpeg->memory_out_ion_fd = -1;
+		}
+#endif
+	}
+
+	rc = -1;
+
+complete:
+	return rc;
+}
+#endif