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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | // SPDX-License-Identifier: GPL-2.0-or-later /* * linux/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v5.c * * Copyright (C) 2011 Samsung Electronics Co., Ltd. * http://www.samsung.com/ */ #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; } |