| /* |
| * linux/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v5.c |
| * |
| * Copyright (C) 2011 Samsung Electronics Co., Ltd. |
| * http://www.samsung.com/ |
| * |
| * 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 2 of the License, or |
| * (at your option) any later version. |
| */ |
| |
| #include "regs-mfc.h" |
| #include "s5p_mfc_cmd.h" |
| #include "s5p_mfc_common.h" |
| #include "s5p_mfc_debug.h" |
| #include "s5p_mfc_cmd_v5.h" |
| |
| /* This function is used to send a command to the MFC */ |
| static int s5p_mfc_cmd_host2risc_v5(struct s5p_mfc_dev *dev, int cmd, |
| struct s5p_mfc_cmd_args *args) |
| { |
| int cur_cmd; |
| unsigned long timeout; |
| |
| timeout = jiffies + msecs_to_jiffies(MFC_BW_TIMEOUT); |
| /* wait until host to risc command register becomes 'H2R_CMD_EMPTY' */ |
| do { |
| if (time_after(jiffies, timeout)) { |
| mfc_err("Timeout while waiting for hardware\n"); |
| return -EIO; |
| } |
| cur_cmd = mfc_read(dev, S5P_FIMV_HOST2RISC_CMD); |
| } while (cur_cmd != S5P_FIMV_H2R_CMD_EMPTY); |
| mfc_write(dev, args->arg[0], S5P_FIMV_HOST2RISC_ARG1); |
| mfc_write(dev, args->arg[1], S5P_FIMV_HOST2RISC_ARG2); |
| mfc_write(dev, args->arg[2], S5P_FIMV_HOST2RISC_ARG3); |
| mfc_write(dev, args->arg[3], S5P_FIMV_HOST2RISC_ARG4); |
| /* Issue the command */ |
| mfc_write(dev, cmd, S5P_FIMV_HOST2RISC_CMD); |
| return 0; |
| } |
| |
| /* Initialize the MFC */ |
| static int s5p_mfc_sys_init_cmd_v5(struct s5p_mfc_dev *dev) |
| { |
| struct s5p_mfc_cmd_args h2r_args; |
| |
| memset(&h2r_args, 0, sizeof(struct s5p_mfc_cmd_args)); |
| h2r_args.arg[0] = dev->fw_buf.size; |
| return s5p_mfc_cmd_host2risc_v5(dev, S5P_FIMV_H2R_CMD_SYS_INIT, |
| &h2r_args); |
| } |
| |
| /* Suspend the MFC hardware */ |
| static int s5p_mfc_sleep_cmd_v5(struct s5p_mfc_dev *dev) |
| { |
| struct s5p_mfc_cmd_args h2r_args; |
| |
| memset(&h2r_args, 0, sizeof(struct s5p_mfc_cmd_args)); |
| return s5p_mfc_cmd_host2risc_v5(dev, S5P_FIMV_H2R_CMD_SLEEP, &h2r_args); |
| } |
| |
| /* Wake up the MFC hardware */ |
| static int s5p_mfc_wakeup_cmd_v5(struct s5p_mfc_dev *dev) |
| { |
| struct s5p_mfc_cmd_args h2r_args; |
| |
| memset(&h2r_args, 0, sizeof(struct s5p_mfc_cmd_args)); |
| return s5p_mfc_cmd_host2risc_v5(dev, S5P_FIMV_H2R_CMD_WAKEUP, |
| &h2r_args); |
| } |
| |
| |
| static int s5p_mfc_open_inst_cmd_v5(struct s5p_mfc_ctx *ctx) |
| { |
| struct s5p_mfc_dev *dev = ctx->dev; |
| struct s5p_mfc_cmd_args h2r_args; |
| int ret; |
| |
| /* Preparing decoding - getting instance number */ |
| mfc_debug(2, "Getting instance number (codec: %d)\n", ctx->codec_mode); |
| dev->curr_ctx = ctx->num; |
| memset(&h2r_args, 0, sizeof(struct s5p_mfc_cmd_args)); |
| switch (ctx->codec_mode) { |
| case S5P_MFC_CODEC_H264_DEC: |
| h2r_args.arg[0] = S5P_FIMV_CODEC_H264_DEC; |
| break; |
| case S5P_MFC_CODEC_VC1_DEC: |
| h2r_args.arg[0] = S5P_FIMV_CODEC_VC1_DEC; |
| break; |
| case S5P_MFC_CODEC_MPEG4_DEC: |
| h2r_args.arg[0] = S5P_FIMV_CODEC_MPEG4_DEC; |
| break; |
| case S5P_MFC_CODEC_MPEG2_DEC: |
| h2r_args.arg[0] = S5P_FIMV_CODEC_MPEG2_DEC; |
| break; |
| case S5P_MFC_CODEC_H263_DEC: |
| h2r_args.arg[0] = S5P_FIMV_CODEC_H263_DEC; |
| break; |
| case S5P_MFC_CODEC_VC1RCV_DEC: |
| h2r_args.arg[0] = S5P_FIMV_CODEC_VC1RCV_DEC; |
| break; |
| case S5P_MFC_CODEC_H264_ENC: |
| h2r_args.arg[0] = S5P_FIMV_CODEC_H264_ENC; |
| break; |
| case S5P_MFC_CODEC_MPEG4_ENC: |
| h2r_args.arg[0] = S5P_FIMV_CODEC_MPEG4_ENC; |
| break; |
| case S5P_MFC_CODEC_H263_ENC: |
| h2r_args.arg[0] = S5P_FIMV_CODEC_H263_ENC; |
| break; |
| default: |
| h2r_args.arg[0] = S5P_FIMV_CODEC_NONE; |
| } |
| h2r_args.arg[1] = 0; /* no crc & no pixelcache */ |
| h2r_args.arg[2] = ctx->ctx.ofs; |
| h2r_args.arg[3] = ctx->ctx.size; |
| ret = s5p_mfc_cmd_host2risc_v5(dev, S5P_FIMV_H2R_CMD_OPEN_INSTANCE, |
| &h2r_args); |
| if (ret) { |
| mfc_err("Failed to create a new instance\n"); |
| ctx->state = MFCINST_ERROR; |
| } |
| return ret; |
| } |
| |
| static int s5p_mfc_close_inst_cmd_v5(struct s5p_mfc_ctx *ctx) |
| { |
| struct s5p_mfc_dev *dev = ctx->dev; |
| struct s5p_mfc_cmd_args h2r_args; |
| int ret; |
| |
| if (ctx->state == MFCINST_FREE) { |
| mfc_err("Instance already returned\n"); |
| ctx->state = MFCINST_ERROR; |
| return -EINVAL; |
| } |
| /* Closing decoding instance */ |
| mfc_debug(2, "Returning instance number %d\n", ctx->inst_no); |
| dev->curr_ctx = ctx->num; |
| memset(&h2r_args, 0, sizeof(struct s5p_mfc_cmd_args)); |
| h2r_args.arg[0] = ctx->inst_no; |
| ret = s5p_mfc_cmd_host2risc_v5(dev, S5P_FIMV_H2R_CMD_CLOSE_INSTANCE, |
| &h2r_args); |
| if (ret) { |
| mfc_err("Failed to return an instance\n"); |
| ctx->state = MFCINST_ERROR; |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| /* Initialize cmd function pointers for MFC v5 */ |
| static struct s5p_mfc_hw_cmds s5p_mfc_cmds_v5 = { |
| .cmd_host2risc = s5p_mfc_cmd_host2risc_v5, |
| .sys_init_cmd = s5p_mfc_sys_init_cmd_v5, |
| .sleep_cmd = s5p_mfc_sleep_cmd_v5, |
| .wakeup_cmd = s5p_mfc_wakeup_cmd_v5, |
| .open_inst_cmd = s5p_mfc_open_inst_cmd_v5, |
| .close_inst_cmd = s5p_mfc_close_inst_cmd_v5, |
| }; |
| |
| struct s5p_mfc_hw_cmds *s5p_mfc_init_hw_cmds_v5(void) |
| { |
| return &s5p_mfc_cmds_v5; |
| } |