+++ /dev/null
-/* arch/arm/mach-msm/qdsp5/adsp_video_verify_cmd.c
- *
- * Verificion code for aDSP VDEC packets from userspace.
- *
- * Copyright (c) 2008 QUALCOMM Incorporated
- * Copyright (C) 2008 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * 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/io.h>
-
-#define ADSP_DEBUG_MSGS 0
-#if ADSP_DEBUG_MSGS
-#define DLOG(fmt,args...) \
- do { printk(KERN_INFO "[%s:%s:%d] "fmt, __FILE__, __func__, __LINE__, \
- ##args); } \
- while (0)
-#else
-#define DLOG(x...) do {} while (0)
-#endif
-
-
-#include <mach/qdsp5/qdsp5vdeccmdi.h>
-#include "adsp.h"
-
-static inline void *high_low_short_to_ptr(unsigned short high,
- unsigned short low)
-{
- return (void *)((((unsigned long)high) << 16) | ((unsigned long)low));
-}
-
-static inline void ptr_to_high_low_short(void *ptr, unsigned short *high,
- unsigned short *low)
-{
- *high = (unsigned short)((((unsigned long)ptr) >> 16) & 0xffff);
- *low = (unsigned short)((unsigned long)ptr & 0xffff);
-}
-
-static int pmem_fixup_high_low(unsigned short *high,
- unsigned short *low,
- unsigned short size_high,
- unsigned short size_low,
- struct msm_adsp_module *module,
- unsigned long *addr, unsigned long *size)
-{
- void *phys_addr;
- unsigned long phys_size;
- unsigned long kvaddr;
-
- phys_addr = high_low_short_to_ptr(*high, *low);
- phys_size = (unsigned long)high_low_short_to_ptr(size_high, size_low);
- DLOG("virt %x %x\n", phys_addr, phys_size);
- if (adsp_pmem_fixup_kvaddr(module, &phys_addr, &kvaddr, phys_size)) {
- DLOG("ah%x al%x sh%x sl%x addr %x size %x\n",
- *high, *low, size_high, size_low, phys_addr, phys_size);
- return -1;
- }
- ptr_to_high_low_short(phys_addr, high, low);
- DLOG("phys %x %x\n", phys_addr, phys_size);
- if (addr)
- *addr = kvaddr;
- if (size)
- *size = phys_size;
- return 0;
-}
-
-static int verify_vdec_pkt_cmd(struct msm_adsp_module *module,
- void *cmd_data, size_t cmd_size)
-{
- unsigned short cmd_id = ((unsigned short *)cmd_data)[0];
- viddec_cmd_subframe_pkt *pkt;
- unsigned long subframe_pkt_addr;
- unsigned long subframe_pkt_size;
- viddec_cmd_frame_header_packet *frame_header_pkt;
- int i, num_addr, skip;
- unsigned short *frame_buffer_high, *frame_buffer_low;
- unsigned long frame_buffer_size;
- unsigned short frame_buffer_size_high, frame_buffer_size_low;
-
- DLOG("cmd_size %d cmd_id %d cmd_data %x\n", cmd_size, cmd_id, cmd_data);
- if (cmd_id != VIDDEC_CMD_SUBFRAME_PKT) {
- printk(KERN_INFO "adsp_video: unknown video packet %u\n",
- cmd_id);
- return 0;
- }
- if (cmd_size < sizeof(viddec_cmd_subframe_pkt))
- return -1;
-
- pkt = (viddec_cmd_subframe_pkt *)cmd_data;
-
- if (pmem_fixup_high_low(&(pkt->subframe_packet_high),
- &(pkt->subframe_packet_low),
- pkt->subframe_packet_size_high,
- pkt->subframe_packet_size_low,
- module,
- &subframe_pkt_addr,
- &subframe_pkt_size))
- return -1;
-
- /* deref those ptrs and check if they are a frame header packet */
- frame_header_pkt = (viddec_cmd_frame_header_packet *)subframe_pkt_addr;
-
- switch (frame_header_pkt->packet_id) {
- case 0xB201: /* h.264 */
- num_addr = skip = 8;
- break;
- case 0x4D01: /* mpeg-4 and h.263 */
- num_addr = 3;
- skip = 0;
- break;
- default:
- return 0;
- }
-
- frame_buffer_high = &frame_header_pkt->frame_buffer_0_high;
- frame_buffer_low = &frame_header_pkt->frame_buffer_0_low;
- frame_buffer_size = (frame_header_pkt->x_dimension *
- frame_header_pkt->y_dimension * 3) / 2;
- ptr_to_high_low_short((void *)frame_buffer_size,
- &frame_buffer_size_high,
- &frame_buffer_size_low);
- for (i = 0; i < num_addr; i++) {
- if (pmem_fixup_high_low(frame_buffer_high, frame_buffer_low,
- frame_buffer_size_high,
- frame_buffer_size_low,
- module,
- NULL, NULL))
- return -1;
- frame_buffer_high += 2;
- frame_buffer_low += 2;
- }
- /* Patch the output buffer. */
- frame_buffer_high += 2*skip;
- frame_buffer_low += 2*skip;
- if (pmem_fixup_high_low(frame_buffer_high, frame_buffer_low,
- frame_buffer_size_high,
- frame_buffer_size_low, module, NULL, NULL))
- return -1;
- return 0;
-}
-
-int adsp_video_verify_cmd(struct msm_adsp_module *module,
- unsigned int queue_id, void *cmd_data,
- size_t cmd_size)
-{
- switch (queue_id) {
- case QDSP_mpuVDecPktQueue:
- DLOG("\n");
- return verify_vdec_pkt_cmd(module, cmd_data, cmd_size);
- default:
- printk(KERN_INFO "unknown video queue %u\n", queue_id);
- return 0;
- }
-}
-
projects / mv-sheeva.git / blobdiff