1 /* 2 * Copyright (c) 2016-2018 The Linux Foundation. All rights reserved. 3 * 4 * Previously licensed under the ISC license by Qualcomm Atheros, Inc. 5 * 6 * 7 * Permission to use, copy, modify, and/or distribute this software for 8 * any purpose with or without fee is hereby granted, provided that the 9 * above copyright notice and this permission notice appear in all 10 * copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 13 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 14 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 15 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 16 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 17 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 18 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 19 * PERFORMANCE OF THIS SOFTWARE. 20 */ 21 22 /* 23 * This file was originally distributed by Qualcomm Atheros, Inc. 24 * under proprietary terms before Copyright ownership was assigned 25 * to the Linux Foundation. 26 */ 27 28 #include "qdf_types.h" 29 #include "dummy.h" 30 #include "hif_debug.h" 31 32 /** 33 * hif_dummy_bus_prevent_linkdown() - prevent linkdown 34 * @hif_ctx: hif context 35 * @flag: weather to keep the bus alive or not 36 * 37 * Dummy function for busses and platforms that do not support 38 * link down. This may need to be replaced with a wakelock. 39 */ 40 void hif_dummy_bus_prevent_linkdown(struct hif_softc *scn, bool flag) 41 { 42 HIF_DBG("wlan: %s pcie power collapse ignored", 43 (flag ? "disable" : "enable")); 44 } 45 46 /** 47 * hif_reset_soc(): reset soc 48 * 49 * this function resets soc 50 * 51 * @hif_ctx: HIF context 52 * 53 * Return: void 54 */ 55 /* Function to reset SoC */ 56 void hif_dummy_reset_soc(struct hif_softc *hif_ctx) 57 { 58 } 59 60 /** 61 * hif_dummy_suspend() - suspend the bus 62 * @hif_ctx: hif context 63 * 64 * dummy for busses that don't need to suspend. 65 * 66 * Return: 0 for success and non-zero for failure 67 */ 68 int hif_dummy_bus_suspend(struct hif_softc *hif_ctx) 69 { 70 return 0; 71 } 72 73 /** 74 * hif_dummy_resume() - hif resume API 75 * 76 * This function resumes the bus. but snoc doesn't need to resume. 77 * Therefore do nothing. 78 * 79 * Return: 0 for success and non-zero for failure 80 */ 81 int hif_dummy_bus_resume(struct hif_softc *hif_ctx) 82 { 83 return 0; 84 } 85 86 /** 87 * hif_dummy_suspend_noirq() - suspend the bus 88 * @hif_ctx: hif context 89 * 90 * dummy for busses that don't need to syncronize 91 * with interrupt disable. 92 * 93 * Return: 0 for success and non-zero for failure 94 */ 95 int hif_dummy_bus_suspend_noirq(struct hif_softc *hif_ctx) 96 { 97 return 0; 98 } 99 100 /** 101 * hif_dummy_resume_noirq() - resume the bus 102 * @hif_ctx: hif context 103 * 104 * dummy for busses that don't need to syncronize 105 * with interrupt disable. 106 * 107 * Return: 0 for success and non-zero for failure 108 */ 109 int hif_dummy_bus_resume_noirq(struct hif_softc *hif_ctx) 110 { 111 return 0; 112 } 113 114 /** 115 * hif_dummy_target_sleep_state_adjust() - api to adjust state of target 116 * @scn: hif context 117 * @sleep_ok: allow or deny target to go to sleep 118 * @wait_for_it: ensure target has change 119 */ 120 int hif_dummy_target_sleep_state_adjust(struct hif_softc *scn, 121 bool sleep_ok, bool wait_for_it) 122 { 123 return 0; 124 } 125 126 /** 127 * hif_dummy_enable_power_management - dummy call 128 * hif_ctx: hif context 129 * is_packet_log_enabled: true if packet log is enabled 130 */ 131 void hif_dummy_enable_power_management(struct hif_softc *hif_ctx, 132 bool is_packet_log_enabled) 133 {} 134 135 /** 136 * hif_dummy_disable_power_management - dummy call 137 * hif_ctx: hif context 138 * 139 * Return: none 140 */ 141 void hif_dummy_disable_power_management(struct hif_softc *hif_ctx) 142 {} 143 144 /** 145 * hif_dummy_disable_isr - dummy call 146 * hif_ctx: hif context 147 * 148 * Return: none 149 */ 150 void hif_dummy_disable_isr(struct hif_softc *scn) 151 {} 152 153 /** 154 * hif_dummy_nointrs - dummy call 155 * hif_sc: hif context 156 * 157 * Return: none 158 */ 159 void hif_dummy_nointrs(struct hif_softc *hif_sc) 160 {} 161 162 /** 163 * hif_dummy_bus_configure - dummy call 164 * hif_ctx: hif context 165 * 166 * Return: 0 for sucess 167 */ 168 int hif_dummy_bus_configure(struct hif_softc *hif_sc) 169 { 170 return 0; 171 } 172 173 /** 174 * hif_dummy_get_config_item - dummy call 175 * @hif_sc: hif context 176 * @opcode: configuration type 177 * @config: configuration value to set 178 * @config_len: configuration length 179 * 180 * Return: 0 for sucess 181 */ 182 QDF_STATUS 183 hif_dummy_get_config_item(struct hif_softc *hif_sc, 184 int opcode, void *config, uint32_t config_len) 185 { 186 return 0; 187 } 188 189 /** 190 * hif_dummy_set_mailbox_swap - dummy call 191 * @hif_sc: hif context 192 * 193 * Return: None 194 */ 195 void 196 hif_dummy_set_mailbox_swap(struct hif_softc *hif_sc) 197 { 198 } 199 200 /** 201 * hif_dummy_claim_device - dummy call 202 * @hif_sc: hif context 203 * 204 * Return: None 205 */ 206 void 207 hif_dummy_claim_device(struct hif_softc *hif_sc) 208 { 209 } 210 211 /** 212 * hif_dummy_cancel_deferred_target_sleep - dummy call 213 * @hif_sc: hif context 214 * 215 * Return: None 216 */ 217 void 218 hif_dummy_cancel_deferred_target_sleep(struct hif_softc *hif_sc) 219 { 220 } 221 222 /** 223 * hif_dummy_irq_enable - dummy call 224 * hif_ctx: hif context 225 * @irq_id: irq id 226 * 227 * Return: none 228 */ 229 void hif_dummy_irq_enable(struct hif_softc *hif_sc, int irq_id) 230 {} 231 232 /** 233 * hif_dummy_grp_irq_enable - dummy call 234 * hif_ctx: hif context 235 * @irq_id: grp id 236 * 237 * Return: none 238 */ 239 void hif_dummy_grp_irq_enable(struct hif_softc *hif_sc, uint32_t grp_id) 240 {} 241 242 /** 243 * hif_dummy_irq_disable - dummy call 244 * hif_ctx: hif context 245 * @irq_id: irq id 246 * 247 * Return: none 248 */ 249 void hif_dummy_irq_disable(struct hif_softc *hif_sc, int irq_id) 250 {} 251 252 /** 253 * hif_dummy_grp_irq_disable- dummy call 254 * hif_ctx: hif context 255 * @grp_id: grp id 256 * 257 * Return: none 258 */ 259 void hif_dummy_grp_irq_disable(struct hif_softc *hif_sc, uint32_t grp_id) 260 {} 261 262 /** 263 * hif_dummy_grp_irq_configure - dummy call 264 * hif_ctx: hif context 265 * 266 * Return: none 267 */ 268 int hif_dummy_grp_irq_configure(struct hif_softc *hif_sc, 269 struct hif_exec_context *exec) 270 { 271 return 0; 272 } 273 274 /** 275 * hif_dummy_dump_registers - dummy call 276 * hif_sc: hif context 277 * 278 * Return: 0 for success 279 */ 280 int hif_dummy_dump_registers(struct hif_softc *hif_sc) 281 { 282 return 0; 283 } 284 285 /** 286 * hif_dummy_dump_target_memory - dummy call 287 * @hif_sc: hif context 288 * @ramdump_base: base 289 * @address: address 290 * @size: size 291 * 292 * Return: None 293 */ 294 void hif_dummy_dump_target_memory(struct hif_softc *hif_sc, void *ramdump_base, 295 uint32_t address, uint32_t size) 296 { 297 } 298 299 /** 300 * hif_dummy_ipa_get_ce_resource - dummy call 301 * @scn: HIF context 302 * @ce_sr: copyengine source ring resource info 303 * @sr_ring_size: source ring size 304 * @reg_paddr: bus physical address 305 * 306 * Return: None 307 */ 308 void hif_dummy_ipa_get_ce_resource(struct hif_softc *hif_sc, 309 qdf_shared_mem_t **ce_sr, 310 uint32_t *sr_ring_size, 311 qdf_dma_addr_t *reg_paddr) 312 { 313 } 314 315 /** 316 * hif_dummy_mask_interrupt_call - dummy call 317 * @hif_sc: hif context 318 * 319 * Return: None 320 */ 321 void 322 hif_dummy_mask_interrupt_call(struct hif_softc *hif_sc) 323 { 324 } 325 326 /** 327 * hif_dummy_display_stats - dummy call 328 * hif_ctx: hif context 329 * 330 * Return: none 331 */ 332 void hif_dummy_display_stats(struct hif_softc *hif_ctx) 333 {} 334 335 /** 336 * hif_dummy_clear_stats - dummy call 337 * hif_ctx: hif context 338 * 339 * Return: none 340 */ 341 void hif_dummy_clear_stats(struct hif_softc *hif_ctx) 342 {} 343 /** 344 * hif_dummy_set_bundle_mode() - dummy call 345 * @hif_sc: hif context 346 * @enabled: flag to enable/disable bundling 347 * @rx_bundle_cnt: bundle count to be used for RX 348 * 349 * Return: none 350 */ 351 void hif_dummy_set_bundle_mode(struct hif_softc *hif_ctx, 352 bool enabled, int rx_bundle_cnt) 353 { 354 } 355 356 /** 357 * hif_dummy_bus_reset_resume() - dummy call 358 * @hif_sc: hif context 359 * 360 * Return: int 0 for success, non zero for failure 361 */ 362 int hif_dummy_bus_reset_resume(struct hif_softc *hif_ctx) 363 { 364 return 0; 365 } 366 367 int hif_dummy_map_ce_to_irq(struct hif_softc *scn, int ce_id) 368 { 369 HIF_ERROR("%s: hif_map_ce_to_irq is not implemented on this platform", 370 __func__); 371 QDF_BUG(0); 372 return -(1); 373 } 374 375 int hif_dummy_addr_in_boundary(struct hif_softc *scn, uint32_t offset) 376 { 377 return 0; 378 } 379 380