| /* Copyright (c) 2012, Code Aurora Forum. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * 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. |
| * |
| */ |
| |
| #include <linux/slab.h> |
| #include <media/msm_vidc.h> |
| #include "msm_vidc_internal.h" |
| #include "msm_vdec.h" |
| #include "msm_venc.h" |
| #include "msm_vidc_common.h" |
| #include "msm_smem.h" |
| |
| int msm_vidc_poll(void *instance, struct file *filp, |
| struct poll_table_struct *wait) |
| { |
| int rc = 0; |
| struct msm_vidc_inst *inst = instance; |
| struct vb2_queue *outq = &inst->vb2_bufq[OUTPUT_PORT]; |
| struct vb2_queue *capq = &inst->vb2_bufq[CAPTURE_PORT]; |
| struct vb2_buffer *out_vb = NULL; |
| struct vb2_buffer *cap_vb = NULL; |
| unsigned long flags; |
| poll_wait(filp, &inst->event_handler.wait, wait); |
| if (v4l2_event_pending(&inst->event_handler)) |
| return POLLPRI; |
| if (!outq->streaming && !capq->streaming) { |
| pr_err("Returning POLLERR from here: %d, %d\n", |
| outq->streaming, capq->streaming); |
| return POLLERR; |
| } |
| poll_wait(filp, &inst->event_handler.wait, wait); |
| if (v4l2_event_pending(&inst->event_handler)) |
| return POLLPRI; |
| poll_wait(filp, &capq->done_wq, wait); |
| poll_wait(filp, &outq->done_wq, wait); |
| spin_lock_irqsave(&capq->done_lock, flags); |
| if (!list_empty(&capq->done_list)) |
| cap_vb = list_first_entry(&capq->done_list, struct vb2_buffer, |
| done_entry); |
| if (cap_vb && (cap_vb->state == VB2_BUF_STATE_DONE |
| || cap_vb->state == VB2_BUF_STATE_ERROR)) |
| rc |= POLLIN | POLLRDNORM; |
| spin_unlock_irqrestore(&capq->done_lock, flags); |
| spin_lock_irqsave(&outq->done_lock, flags); |
| if (!list_empty(&outq->done_list)) |
| out_vb = list_first_entry(&outq->done_list, struct vb2_buffer, |
| done_entry); |
| if (out_vb && (out_vb->state == VB2_BUF_STATE_DONE |
| || out_vb->state == VB2_BUF_STATE_ERROR)) |
| rc |= POLLOUT | POLLWRNORM; |
| spin_unlock_irqrestore(&outq->done_lock, flags); |
| return rc; |
| } |
| |
| int msm_vidc_querycap(void *instance, struct v4l2_capability *cap) |
| { |
| struct msm_vidc_inst *inst = instance; |
| if (inst->session_type == MSM_VIDC_DECODER) |
| return msm_vdec_querycap(instance, cap); |
| else if (inst->session_type == MSM_VIDC_ENCODER) |
| return msm_venc_querycap(instance, cap); |
| return -EINVAL; |
| } |
| int msm_vidc_enum_fmt(void *instance, struct v4l2_fmtdesc *f) |
| { |
| struct msm_vidc_inst *inst = instance; |
| if (inst->session_type == MSM_VIDC_DECODER) |
| return msm_vdec_enum_fmt(instance, f); |
| else if (inst->session_type == MSM_VIDC_ENCODER) |
| return msm_venc_enum_fmt(instance, f); |
| return -EINVAL; |
| } |
| int msm_vidc_s_fmt(void *instance, struct v4l2_format *f) |
| { |
| struct msm_vidc_inst *inst = instance; |
| if (inst->session_type == MSM_VIDC_DECODER) |
| return msm_vdec_s_fmt(instance, f); |
| if (inst->session_type == MSM_VIDC_ENCODER) |
| return msm_venc_s_fmt(instance, f); |
| return -EINVAL; |
| } |
| int msm_vidc_g_fmt(void *instance, struct v4l2_format *f) |
| { |
| struct msm_vidc_inst *inst = instance; |
| if (inst->session_type == MSM_VIDC_DECODER) |
| return msm_vdec_g_fmt(instance, f); |
| else if (inst->session_type == MSM_VIDC_ENCODER) |
| return msm_venc_g_fmt(instance, f); |
| return -EINVAL; |
| } |
| int msm_vidc_s_ctrl(void *instance, struct v4l2_control *control) |
| { |
| struct msm_vidc_inst *inst = instance; |
| if (inst->session_type == MSM_VIDC_DECODER) |
| return msm_vdec_s_ctrl(instance, control); |
| if (inst->session_type == MSM_VIDC_ENCODER) |
| return msm_venc_s_ctrl(instance, control); |
| return -EINVAL; |
| } |
| int msm_vidc_g_ctrl(void *instance, struct v4l2_control *control) |
| { |
| struct msm_vidc_inst *inst = instance; |
| if (inst->session_type == MSM_VIDC_DECODER) |
| return msm_vdec_g_ctrl(instance, control); |
| if (inst->session_type == MSM_VIDC_ENCODER) |
| return msm_venc_g_ctrl(instance, control); |
| return -EINVAL; |
| } |
| int msm_vidc_reqbufs(void *instance, struct v4l2_requestbuffers *b) |
| { |
| struct msm_vidc_inst *inst = instance; |
| if (inst->session_type == MSM_VIDC_DECODER) |
| return msm_vdec_reqbufs(instance, b); |
| if (inst->session_type == MSM_VIDC_ENCODER) |
| return msm_venc_reqbufs(instance, b); |
| return -EINVAL; |
| } |
| |
| int msm_vidc_prepare_buf(void *instance, struct v4l2_buffer *b) |
| { |
| struct msm_vidc_inst *inst = instance; |
| if (inst->session_type == MSM_VIDC_DECODER) |
| return msm_vdec_prepare_buf(instance, b); |
| if (inst->session_type == MSM_VIDC_ENCODER) |
| return msm_venc_prepare_buf(instance, b); |
| return -EINVAL; |
| } |
| |
| int msm_vidc_release_buf(void *instance, struct v4l2_buffer *b) |
| { |
| struct msm_vidc_inst *inst = instance; |
| if (inst->session_type == MSM_VIDC_DECODER) |
| return msm_vdec_release_buf(instance, b); |
| return -EINVAL; |
| } |
| |
| int msm_vidc_qbuf(void *instance, struct v4l2_buffer *b) |
| { |
| struct msm_vidc_inst *inst = instance; |
| if (inst->session_type == MSM_VIDC_DECODER) |
| return msm_vdec_qbuf(instance, b); |
| if (inst->session_type == MSM_VIDC_ENCODER) |
| return msm_venc_qbuf(instance, b); |
| return -EINVAL; |
| } |
| |
| int msm_vidc_dqbuf(void *instance, struct v4l2_buffer *b) |
| { |
| struct msm_vidc_inst *inst = instance; |
| if (inst->session_type == MSM_VIDC_DECODER) |
| return msm_vdec_dqbuf(instance, b); |
| if (inst->session_type == MSM_VIDC_ENCODER) |
| return msm_venc_dqbuf(instance, b); |
| return -EINVAL; |
| } |
| |
| int msm_vidc_streamon(void *instance, enum v4l2_buf_type i) |
| { |
| struct msm_vidc_inst *inst = instance; |
| if (inst->session_type == MSM_VIDC_DECODER) |
| return msm_vdec_streamon(instance, i); |
| if (inst->session_type == MSM_VIDC_ENCODER) |
| return msm_venc_streamon(instance, i); |
| return -EINVAL; |
| } |
| |
| int msm_vidc_streamoff(void *instance, enum v4l2_buf_type i) |
| { |
| struct msm_vidc_inst *inst = instance; |
| if (inst->session_type == MSM_VIDC_DECODER) |
| return msm_vdec_streamoff(instance, i); |
| if (inst->session_type == MSM_VIDC_ENCODER) |
| return msm_venc_streamoff(instance, i); |
| return -EINVAL; |
| } |
| |
| void *vidc_get_userptr(void *alloc_ctx, unsigned long vaddr, |
| unsigned long size, int write) |
| { |
| return (void *)0xdeadbeef; |
| } |
| |
| void vidc_put_userptr(void *buf_priv) |
| { |
| } |
| |
| static const struct vb2_mem_ops msm_vidc_vb2_mem_ops = { |
| .get_userptr = vidc_get_userptr, |
| .put_userptr = vidc_put_userptr, |
| }; |
| |
| static inline int vb2_bufq_init(struct msm_vidc_inst *inst, |
| enum v4l2_buf_type type, enum session_type sess) |
| { |
| struct vb2_queue *q = NULL; |
| if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { |
| q = &inst->vb2_bufq[CAPTURE_PORT]; |
| } else if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { |
| q = &inst->vb2_bufq[OUTPUT_PORT]; |
| } else { |
| pr_err("buf_type = %d not recognised\n", type); |
| return -EINVAL; |
| } |
| q->type = type; |
| q->io_modes = VB2_MMAP | VB2_USERPTR; |
| q->io_flags = 0; |
| if (sess == MSM_VIDC_DECODER) |
| q->ops = msm_vdec_get_vb2q_ops(); |
| else if (sess == MSM_VIDC_ENCODER) |
| q->ops = msm_venc_get_vb2q_ops(); |
| q->mem_ops = &msm_vidc_vb2_mem_ops; |
| q->drv_priv = inst; |
| return vb2_queue_init(q); |
| } |
| |
| int msm_vidc_open(void *vidc_inst, int core_id, int session_type) |
| { |
| struct msm_vidc_inst *inst = (struct msm_vidc_inst *)vidc_inst; |
| struct msm_vidc_core *core = NULL; |
| unsigned long flags; |
| int rc = 0; |
| int i = 0; |
| if (core_id >= MSM_VIDC_CORES_MAX || |
| session_type >= MSM_VIDC_MAX_DEVICES) { |
| pr_err("Invalid input, core_id = %d, session = %d\n", |
| core_id, session_type); |
| goto err_invalid_core; |
| } |
| core = get_vidc_core(core_id); |
| if (!core) { |
| pr_err("Failed to find core for core_id = %d\n", core_id); |
| goto err_invalid_core; |
| } |
| |
| mutex_init(&inst->sync_lock); |
| spin_lock_init(&inst->lock); |
| inst->session_type = session_type; |
| INIT_LIST_HEAD(&inst->pendingq); |
| INIT_LIST_HEAD(&inst->internalbufs); |
| inst->state = MSM_VIDC_CORE_UNINIT_DONE; |
| inst->core = core; |
| for (i = SESSION_MSG_INDEX(SESSION_MSG_START); |
| i <= SESSION_MSG_INDEX(SESSION_MSG_END); i++) { |
| init_completion(&inst->completions[i]); |
| } |
| inst->mem_client = msm_smem_new_client(SMEM_ION); |
| if (!inst->mem_client) { |
| pr_err("Failed to create memory client\n"); |
| goto fail_mem_client; |
| } |
| if (session_type == MSM_VIDC_DECODER) { |
| msm_vdec_inst_init(inst); |
| msm_vdec_ctrl_init(inst); |
| } else if (session_type == MSM_VIDC_ENCODER) { |
| msm_venc_inst_init(inst); |
| msm_venc_ctrl_init(inst); |
| } |
| rc = vb2_bufq_init(inst, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE, |
| session_type); |
| if (rc) { |
| pr_err("Failed to initialize vb2 queue on capture port\n"); |
| goto fail_init; |
| } |
| rc = vb2_bufq_init(inst, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, |
| session_type); |
| if (rc) { |
| pr_err("Failed to initialize vb2 queue on capture port\n"); |
| goto fail_init; |
| } |
| rc = msm_comm_try_state(inst, MSM_VIDC_CORE_INIT); |
| if (rc) { |
| pr_err("Failed to move video instance to init state\n"); |
| goto fail_init; |
| } |
| spin_lock_irqsave(&core->lock, flags); |
| list_add_tail(&inst->list, &core->instances); |
| spin_unlock_irqrestore(&core->lock, flags); |
| return rc; |
| fail_init: |
| msm_smem_delete_client(inst->mem_client); |
| fail_mem_client: |
| kfree(inst); |
| inst = NULL; |
| err_invalid_core: |
| return rc; |
| } |
| |
| static void cleanup_instance(struct msm_vidc_inst *inst) |
| { |
| unsigned long flags; |
| struct list_head *ptr, *next; |
| struct vb2_buf_entry *entry; |
| struct internal_buf *buf; |
| if (inst) { |
| spin_lock_irqsave(&inst->lock, flags); |
| if (!list_empty(&inst->pendingq)) { |
| list_for_each_safe(ptr, next, &inst->pendingq) { |
| entry = list_entry(ptr, struct vb2_buf_entry, |
| list); |
| list_del(&entry->list); |
| kfree(entry); |
| } |
| } |
| if (!list_empty(&inst->internalbufs)) { |
| list_for_each_safe(ptr, next, &inst->internalbufs) { |
| buf = list_entry(ptr, struct internal_buf, |
| list); |
| list_del(&buf->list); |
| msm_smem_free(inst->mem_client, buf->handle); |
| kfree(buf); |
| } |
| } |
| spin_unlock_irqrestore(&inst->lock, flags); |
| msm_smem_delete_client(inst->mem_client); |
| } |
| } |
| |
| int msm_vidc_close(void *instance) |
| { |
| struct msm_vidc_inst *inst = instance; |
| struct msm_vidc_inst *temp; |
| struct msm_vidc_core *core; |
| struct list_head *ptr, *next; |
| int rc = 0; |
| core = inst->core; |
| mutex_lock(&core->sync_lock); |
| list_for_each_safe(ptr, next, &core->instances) { |
| temp = list_entry(ptr, struct msm_vidc_inst, list); |
| if (temp == inst) |
| list_del(&inst->list); |
| } |
| mutex_unlock(&core->sync_lock); |
| rc = msm_comm_try_state(inst, MSM_VIDC_CORE_UNINIT); |
| if (rc) |
| pr_err("Failed to move video instance to uninit state\n"); |
| cleanup_instance(inst); |
| pr_debug("Closed the instance\n"); |
| return 0; |
| } |