1 /*- 2 * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #define SDMAARM_MC0PTR 0x00 /* ARM platform Channel 0 Pointer */ 28 #define SDMAARM_INTR 0x04 /* Channel Interrupts */ 29 #define SDMAARM_STOP_STAT 0x08 /* Channel Stop/Channel Status */ 30 #define SDMAARM_HSTART 0x0C /* Channel Start */ 31 #define SDMAARM_EVTOVR 0x10 /* Channel Event Override */ 32 #define SDMAARM_DSPOVR 0x14 /* Channel BP Override */ 33 #define SDMAARM_HOSTOVR 0x18 /* Channel ARM platform Override */ 34 #define SDMAARM_EVTPEND 0x1C /* Channel Event Pending */ 35 #define SDMAARM_RESET 0x24 /* Reset Register */ 36 #define SDMAARM_EVTERR 0x28 /* DMA Request Error Register */ 37 #define SDMAARM_INTRMASK 0x2C /* Channel ARM platform Interrupt Mask */ 38 #define SDMAARM_PSW 0x30 /* Schedule Status */ 39 #define SDMAARM_EVTERRDBG 0x34 /* DMA Request Error Register */ 40 #define SDMAARM_CONFIG 0x38 /* Configuration Register */ 41 #define CONFIG_CSM 0x3 42 #define SDMAARM_SDMA_LOCK 0x3C /* SDMA LOCK */ 43 #define SDMAARM_ONCE_ENB 0x40 /* OnCE Enable */ 44 #define SDMAARM_ONCE_DATA 0x44 /* OnCE Data Register */ 45 #define SDMAARM_ONCE_INSTR 0x48 /* OnCE Instruction Register */ 46 #define SDMAARM_ONCE_STAT 0x4C /* OnCE Status Register */ 47 #define SDMAARM_ONCE_CMD 0x50 /* OnCE Command Register */ 48 #define SDMAARM_ILLINSTADDR 0x58 /* Illegal Instruction Trap Address */ 49 #define SDMAARM_CHN0ADDR 0x5C /* Channel 0 Boot Address */ 50 #define SDMAARM_EVT_MIRROR 0x60 /* DMA Requests */ 51 #define SDMAARM_EVT_MIRROR2 0x64 /* DMA Requests 2 */ 52 #define SDMAARM_XTRIG_CONF1 0x70 /* Cross-Trigger Events Configuration Register 1 */ 53 #define SDMAARM_XTRIG_CONF2 0x74 /* Cross-Trigger Events Configuration Register 2 */ 54 #define SDMAARM_SDMA_CHNPRI(n) (0x100 + 0x4 * n) /* Channel Priority Registers */ 55 #define SDMAARM_CHNENBL(n) (0x200 + 0x4 * n) /* Channel Enable RAM */ 56 57 /* SDMA Event Mappings */ 58 #define SSI1_RX_1 35 59 #define SSI1_TX_1 36 60 #define SSI1_RX_0 37 61 #define SSI1_TX_0 38 62 #define SSI2_RX_1 39 63 #define SSI2_TX_1 40 64 #define SSI2_RX_0 41 65 #define SSI2_TX_0 42 66 #define SSI3_RX_1 43 67 #define SSI3_TX_1 44 68 #define SSI3_RX_0 45 69 #define SSI3_TX_0 46 70 71 #define C0_ADDR 0x01 72 #define C0_LOAD 0x02 73 #define C0_DUMP 0x03 74 #define C0_SETCTX 0x07 75 #define C0_GETCTX 0x03 76 #define C0_SETDM 0x01 77 #define C0_SETPM 0x04 78 #define C0_GETDM 0x02 79 #define C0_GETPM 0x08 80 81 #define BD_DONE 0x01 82 #define BD_WRAP 0x02 83 #define BD_CONT 0x04 84 #define BD_INTR 0x08 85 #define BD_RROR 0x10 86 #define BD_LAST 0x20 87 #define BD_EXTD 0x80 88 89 /* sDMA data transfer length */ 90 #define CMD_4BYTES 0 91 #define CMD_3BYTES 3 92 #define CMD_2BYTES 2 93 #define CMD_1BYTES 1 94 95 struct sdma_firmware_header { 96 uint32_t magic; 97 uint32_t version_major; 98 uint32_t version_minor; 99 uint32_t script_addrs_start; 100 uint32_t num_script_addrs; 101 uint32_t ram_code_start; 102 uint32_t ram_code_size; 103 }; 104 105 struct sdma_mode_count { 106 uint16_t count; 107 uint8_t status; 108 uint8_t command; 109 }; 110 111 struct sdma_buffer_descriptor { 112 struct sdma_mode_count mode; 113 uint32_t buffer_addr; 114 uint32_t ext_buffer_addr; 115 } __packed; 116 117 struct sdma_channel_control { 118 uint32_t current_bd_ptr; 119 uint32_t base_bd_ptr; 120 uint32_t unused[2]; 121 } __packed; 122 123 struct sdma_state_registers { 124 uint32_t pc :14; 125 uint32_t unused1: 1; 126 uint32_t t : 1; 127 uint32_t rpc :14; 128 uint32_t unused0: 1; 129 uint32_t sf : 1; 130 uint32_t spc :14; 131 uint32_t unused2: 1; 132 uint32_t df : 1; 133 uint32_t epc :14; 134 uint32_t lm : 2; 135 } __packed; 136 137 struct sdma_context_data { 138 struct sdma_state_registers channel_state; 139 uint32_t gReg[8]; 140 uint32_t mda; 141 uint32_t msa; 142 uint32_t ms; 143 uint32_t md; 144 uint32_t pda; 145 uint32_t psa; 146 uint32_t ps; 147 uint32_t pd; 148 uint32_t ca; 149 uint32_t cs; 150 uint32_t dda; 151 uint32_t dsa; 152 uint32_t ds; 153 uint32_t dd; 154 uint32_t unused[8]; 155 } __packed; 156 157 /* SDMA firmware script pointers */ 158 struct sdma_script_start_addrs { 159 int32_t ap_2_ap_addr; 160 int32_t ap_2_bp_addr; 161 int32_t ap_2_ap_fixed_addr; 162 int32_t bp_2_ap_addr; 163 int32_t loopback_on_dsp_side_addr; 164 int32_t mcu_interrupt_only_addr; 165 int32_t firi_2_per_addr; 166 int32_t firi_2_mcu_addr; 167 int32_t per_2_firi_addr; 168 int32_t mcu_2_firi_addr; 169 int32_t uart_2_per_addr; 170 int32_t uart_2_mcu_addr; 171 int32_t per_2_app_addr; 172 int32_t mcu_2_app_addr; 173 int32_t per_2_per_addr; 174 int32_t uartsh_2_per_addr; 175 int32_t uartsh_2_mcu_addr; 176 int32_t per_2_shp_addr; 177 int32_t mcu_2_shp_addr; 178 int32_t ata_2_mcu_addr; 179 int32_t mcu_2_ata_addr; 180 int32_t app_2_per_addr; 181 int32_t app_2_mcu_addr; 182 int32_t shp_2_per_addr; 183 int32_t shp_2_mcu_addr; 184 int32_t mshc_2_mcu_addr; 185 int32_t mcu_2_mshc_addr; 186 int32_t spdif_2_mcu_addr; 187 int32_t mcu_2_spdif_addr; 188 int32_t asrc_2_mcu_addr; 189 int32_t ext_mem_2_ipu_addr; 190 int32_t descrambler_addr; 191 int32_t dptc_dvfs_addr; 192 int32_t utra_addr; 193 int32_t ram_code_start_addr; 194 int32_t mcu_2_ssish_addr; 195 int32_t ssish_2_mcu_addr; 196 int32_t hdmi_dma_addr; 197 }; 198 199 #define SDMA_N_CHANNELS 32 200 #define SDMA_N_EVENTS 48 201 #define FW_HEADER_MAGIC 0x414d4453 202 203 struct sdma_channel { 204 struct sdma_conf *conf; 205 struct sdma_buffer_descriptor *bd; 206 uint8_t in_use; 207 }; 208 209 struct sdma_softc { 210 struct resource *res[2]; 211 bus_space_tag_t bst; 212 bus_space_handle_t bsh; 213 device_t dev; 214 void *ih; 215 struct sdma_channel_control *ccb; 216 struct sdma_buffer_descriptor *bd0; 217 struct sdma_context_data *context; 218 struct sdma_channel channel[SDMA_N_CHANNELS]; 219 uint32_t num_bd; 220 uint32_t ccb_phys; 221 uint32_t context_phys; 222 const struct sdma_firmware_header *fw_header; 223 const struct sdma_script_start_addrs *fw_scripts; 224 }; 225 226 struct sdma_conf { 227 bus_addr_t saddr; 228 bus_addr_t daddr; 229 uint32_t word_length; 230 uint32_t nbits; 231 uint32_t command; 232 uint32_t num_bd; 233 uint32_t event; 234 uint32_t period; 235 uint32_t (*ih)(void *, int); 236 void *ih_user; 237 }; 238 239 int sdma_configure(int, struct sdma_conf *); 240 int sdma_start(int); 241 int sdma_stop(int); 242 int sdma_alloc(void); 243 int sdma_free(int); 244