Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2015 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 | #ifdef HIF_PCI |
| 29 | |
| 30 | #include "icnss_stub.h" |
| 31 | #include "hif_io32.h" |
| 32 | #include <hif.h> |
| 33 | #include "regtable.h" |
| 34 | #include "hif_debug.h" |
| 35 | #include "cds_api.h" |
| 36 | #include "cdf_status.h" |
| 37 | #include "qwlan_version.h" |
| 38 | #include <net/cnss.h> |
| 39 | |
| 40 | static int icnss_get_irq_num(int ce_id); |
| 41 | |
| 42 | /** |
| 43 | * struct icnss_stub_entry |
| 44 | * |
| 45 | * @irq_handler: irq_handler |
| 46 | * @data: data |
| 47 | * @name: name |
| 48 | * @ce_id: ce_id |
| 49 | */ |
| 50 | struct icnss_stub_entry { |
| 51 | irqreturn_t (*irq_handler)(int, void *); |
| 52 | void *data; |
| 53 | const char *name; |
| 54 | int ce_id; |
| 55 | }; |
| 56 | |
| 57 | /** |
| 58 | * struct icnss_stub_context |
| 59 | * |
| 60 | * @stub: icnss_stub_entry |
| 61 | * @regged_irq: regged_irq |
| 62 | */ |
| 63 | struct icnss_stub_context { |
| 64 | struct icnss_stub_entry stub[ICNSS_MAX_IRQ_REGISTRATIONS]; |
| 65 | uint32_t regged_irq; |
| 66 | }; |
| 67 | |
| 68 | static struct icnss_stub_context cnss_stub; |
| 69 | |
| 70 | #ifndef QCA_WIFI_3_0_ADRASTEA |
| 71 | /** |
| 72 | * icnss_wlan_enable() - icnss_wlan_enable |
| 73 | * @config: ce configuration information |
| 74 | * @mode: driver_mode |
| 75 | * @host_version: version string to send to the fw |
| 76 | * |
| 77 | * Return: int |
| 78 | */ |
| 79 | int icnss_wlan_enable(struct icnss_wlan_enable_cfg *config, |
| 80 | enum icnss_driver_mode mode, const char *host_version) |
| 81 | { |
| 82 | return 0; |
| 83 | } |
| 84 | |
| 85 | /** |
| 86 | * icnss_wlan_disable() - icnss_wlan_disable |
| 87 | * @mode: driver_mode |
| 88 | * |
| 89 | * Return: int |
| 90 | */ |
| 91 | int icnss_wlan_disable(enum icnss_driver_mode mode) |
| 92 | { |
| 93 | return 0; |
| 94 | } |
| 95 | |
Yuanyuan Liu | 44748d4 | 2015-12-02 10:39:51 -0800 | [diff] [blame] | 96 | /** |
| 97 | * icnss_set_fw_debug_mode() - icnss_set_fw_debug_mode |
| 98 | * @mode: fw debug mode, 0 for QXDM, 1 for WMI |
| 99 | * |
| 100 | * Return: int |
| 101 | */ |
| 102 | int icnss_set_fw_debug_mode(bool mode) |
| 103 | { |
| 104 | return 0; |
| 105 | } |
| 106 | |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 107 | #else |
| 108 | |
| 109 | /** |
| 110 | * icnss_wlan_enable(): call the platform driver to enable wlan |
| 111 | * @config: ce configuration information |
| 112 | * @mode: driver_mode |
| 113 | * @host_version: version string to send to the fw |
| 114 | * |
| 115 | * This function passes the con_mode and CE configuration to |
| 116 | * platform driver to enable wlan. |
| 117 | * cnss_wlan_enable has been hacked to do a qmi handshake with fw. |
| 118 | * this is not needed for rome. |
| 119 | * |
| 120 | * Return: 0 on success, error number otherwise. |
| 121 | */ |
| 122 | int icnss_wlan_enable(struct icnss_wlan_enable_cfg *config, |
| 123 | enum icnss_driver_mode mode, const char *host_version) |
| 124 | { |
| 125 | struct cnss_wlan_enable_cfg cfg; |
| 126 | enum cnss_driver_mode cnss_mode; |
| 127 | |
| 128 | cfg.num_ce_tgt_cfg = config->num_ce_tgt_cfg; |
| 129 | cfg.ce_tgt_cfg = (struct cnss_ce_tgt_pipe_cfg *) |
| 130 | config->ce_tgt_cfg; |
| 131 | cfg.num_ce_svc_pipe_cfg = config->num_ce_svc_pipe_cfg; |
| 132 | cfg.ce_svc_cfg = (struct cnss_ce_svc_pipe_cfg *) |
| 133 | config->ce_svc_cfg; |
| 134 | |
| 135 | cfg.num_shadow_reg_cfg = config->num_shadow_reg_cfg; |
| 136 | cfg.shadow_reg_cfg = (struct cnss_shadow_reg_cfg *) |
| 137 | config->shadow_reg_cfg; |
| 138 | |
| 139 | switch (mode) { |
| 140 | case ICNSS_FTM: |
| 141 | cnss_mode = CNSS_FTM; |
| 142 | break; |
| 143 | case ICNSS_EPPING: |
| 144 | cnss_mode = CNSS_EPPING; |
| 145 | break; |
| 146 | default: |
| 147 | cnss_mode = CNSS_MISSION; |
| 148 | break; |
| 149 | } |
| 150 | return cnss_wlan_enable(&cfg, cnss_mode, host_version); |
| 151 | } |
| 152 | |
| 153 | /** |
| 154 | * icnss_wlan_disable(): call the platform driver to disable wlan |
| 155 | * |
| 156 | * This function passes the con_mode to platform driver to disable wlan. |
| 157 | * cnss_wlan_disable has been hacked to do a qmi handshake with fw. |
| 158 | * this is not needed for rome. |
| 159 | * |
| 160 | * Return: void |
| 161 | */ |
| 162 | int icnss_wlan_disable(enum icnss_driver_mode con_mode) |
| 163 | { |
| 164 | enum cnss_driver_mode mode; |
| 165 | |
| 166 | switch (con_mode) { |
| 167 | case ICNSS_FTM: |
| 168 | mode = CNSS_FTM; |
| 169 | break; |
| 170 | case ICNSS_EPPING: |
| 171 | mode = CNSS_EPPING; |
| 172 | break; |
| 173 | default: |
| 174 | mode = CNSS_MISSION; |
| 175 | break; |
| 176 | } |
| 177 | |
| 178 | cnss_wlan_disable(mode); |
| 179 | return 0; |
| 180 | } |
Yuanyuan Liu | 44748d4 | 2015-12-02 10:39:51 -0800 | [diff] [blame] | 181 | |
| 182 | /** |
| 183 | * icnss_set_fw_debug_mode() - call the platform driver to set fw |
| 184 | * debug mode |
| 185 | * @mode: fw debug mode, 0 for QXDM, 1 for WMI |
| 186 | * |
| 187 | * This function passes the fw debug mode to platform driver. |
| 188 | * cnss_set_fw_debug_mode has been hacked to do a qmi handshake with fw. |
| 189 | * This is not needed for rome. |
| 190 | * |
| 191 | * Return: int |
| 192 | */ |
| 193 | int icnss_set_fw_debug_mode(bool mode) |
| 194 | { |
| 195 | return cnss_set_fw_debug_mode(mode); |
| 196 | } |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 197 | #endif |
| 198 | |
| 199 | /** |
| 200 | * icnss_ce_request_irq() - register an irq handler |
| 201 | * @ce_id: ce_id |
| 202 | * @handler: handler |
| 203 | * @flags: flags to pass to the kernel api |
| 204 | * @name: name |
| 205 | * @context: context to pass to the irq handler |
| 206 | * |
| 207 | * Return: integer status |
| 208 | */ |
| 209 | int icnss_ce_request_irq(int ce_id, |
| 210 | irqreturn_t (*handler)(int, void *), |
| 211 | unsigned long flags, const char *name, |
| 212 | void *context) |
| 213 | { |
| 214 | if (ce_id >= ICNSS_MAX_IRQ_REGISTRATIONS) { |
| 215 | HIF_ERROR("%s: invalid ce_id = %d", __func__, ce_id); |
| 216 | return -EINVAL; |
| 217 | } |
| 218 | |
| 219 | cnss_stub.stub[ce_id].irq_handler = handler; |
| 220 | cnss_stub.stub[ce_id].ce_id = ce_id; |
| 221 | cnss_stub.stub[ce_id].data = context; |
| 222 | cnss_stub.stub[ce_id].name = name; |
| 223 | cnss_stub.regged_irq |= (1 << ce_id); |
| 224 | return 0; |
| 225 | } |
| 226 | |
| 227 | /** |
| 228 | * icnss_ce_free_irq() - icnss_unregister_irq |
| 229 | * @ce_id: the ce_id that the irq belongs to |
| 230 | * @context: context with witch the irq was requested. |
| 231 | * Return: integer status |
| 232 | */ |
| 233 | int icnss_ce_free_irq(int ce_id, void *context) |
| 234 | { |
| 235 | if (ce_id >= ICNSS_MAX_IRQ_REGISTRATIONS) { |
| 236 | HIF_ERROR("%s: invalid ce_id = %d", __func__, ce_id); |
| 237 | return -EINVAL; |
| 238 | } |
| 239 | |
| 240 | if (cnss_stub.stub[ce_id].data != context) { |
| 241 | HIF_ERROR("%s: context match failure for ce_id %d", |
| 242 | __func__, ce_id); |
| 243 | return -EINVAL; |
| 244 | } |
| 245 | |
| 246 | if (cnss_stub.regged_irq & (1 << ce_id)) { |
| 247 | cnss_stub.stub[ce_id].irq_handler = NULL; |
| 248 | cnss_stub.stub[ce_id].ce_id = 0; |
| 249 | cnss_stub.stub[ce_id].data = 0; |
| 250 | cnss_stub.stub[ce_id].name = NULL; |
| 251 | cnss_stub.regged_irq &= ~(1 << ce_id); |
| 252 | } |
| 253 | return 0; |
| 254 | } |
| 255 | |
| 256 | /** |
| 257 | * icnss_dispatch_one_ce_irq() - icnss_dispatch_one_ce_irq |
| 258 | * @ce_id: ce_id |
| 259 | * |
| 260 | * Return: irqreturn_t |
| 261 | */ |
| 262 | static irqreturn_t icnss_dispatch_one_ce_irq(int ce_id) |
| 263 | { |
| 264 | irqreturn_t ret = IRQ_NONE; |
| 265 | |
| 266 | if (cnss_stub.stub[ce_id].irq_handler) |
| 267 | ret = cnss_stub.stub[ce_id].irq_handler( |
| 268 | icnss_get_irq_num(ce_id), |
| 269 | (void *)cnss_stub.stub[ce_id].data); |
| 270 | else |
| 271 | HIF_ERROR( |
| 272 | "%sd: error - ce_id = %d, no IRQ handler", |
| 273 | __func__, ce_id); |
| 274 | |
| 275 | return ret; |
| 276 | } |
| 277 | |
| 278 | /** |
| 279 | * icnss_dispatch_ce_irq() - icnss_dispatch_ce_irq |
| 280 | * @scn: scn |
| 281 | * |
| 282 | * Return: N/A |
| 283 | */ |
| 284 | void icnss_dispatch_ce_irq(struct ol_softc *scn) |
| 285 | { |
| 286 | uint32_t intr_summary; |
| 287 | int id; |
| 288 | irqreturn_t ret; |
| 289 | |
| 290 | if (scn->hif_init_done != true) |
| 291 | return; |
| 292 | |
| 293 | A_TARGET_ACCESS_BEGIN(scn); |
| 294 | intr_summary = CE_INTERRUPT_SUMMARY(scn); |
| 295 | |
| 296 | if (intr_summary == 0) { |
| 297 | if ((scn->target_status != OL_TRGET_STATUS_RESET) && |
| 298 | (!cdf_atomic_read(&scn->link_suspended))) { |
| 299 | |
| 300 | hif_write32_mb(scn->mem + |
| 301 | (SOC_CORE_BASE_ADDRESS | |
| 302 | PCIE_INTR_ENABLE_ADDRESS), |
| 303 | HOST_GROUP0_MASK); |
| 304 | |
| 305 | hif_read32_mb(scn->mem + |
| 306 | (SOC_CORE_BASE_ADDRESS | |
| 307 | PCIE_INTR_ENABLE_ADDRESS)); |
| 308 | } |
| 309 | A_TARGET_ACCESS_END(scn); |
| 310 | return; |
| 311 | } else { |
| 312 | A_TARGET_ACCESS_END(scn); |
| 313 | } |
| 314 | |
| 315 | scn->ce_irq_summary = intr_summary; |
| 316 | for (id = 0; intr_summary && (id < scn->ce_count); id++) { |
| 317 | if (intr_summary & (1 << id)) { |
| 318 | intr_summary &= ~(1 << id); |
| 319 | ret = icnss_dispatch_one_ce_irq(id); |
| 320 | } |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | /** |
| 325 | * icnss_get_soc_info() - get soc info |
| 326 | * |
| 327 | * This function query the soc information from the platform |
| 328 | * driver |
| 329 | * |
| 330 | * @info: struct icnss_soc_info |
| 331 | * |
| 332 | * Return: 0 for success |
| 333 | */ |
| 334 | int icnss_get_soc_info(struct icnss_soc_info *info) |
| 335 | { |
| 336 | struct ol_softc *scn = cds_get_context(CDF_MODULE_ID_HIF); |
| 337 | |
| 338 | if (!scn) { |
| 339 | HIF_ERROR("%s: SCN = NULL", __func__); |
| 340 | return -EINVAL; |
| 341 | } |
| 342 | info->v_addr = scn->mem; |
| 343 | info->p_addr = scn->mem_pa; |
| 344 | info->version = 0; |
| 345 | return 0; |
| 346 | } |
| 347 | |
| 348 | |
| 349 | /* icnss_get_irq_num() - generate a number to represent an irq number |
| 350 | */ |
| 351 | static int icnss_get_irq_num(int ce_id) |
| 352 | { |
Orhan K AKYILDIZ | 0615891 | 2015-11-11 18:01:15 -0800 | [diff] [blame] | 353 | if (ce_id < CE_COUNT_MAX && ce_id >= 0) |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 354 | return ce_id + 100; |
| 355 | |
| 356 | pr_err("icnss: No irq registered for CE id %d\n", ce_id); |
| 357 | return -EINVAL; |
| 358 | } |
| 359 | |
| 360 | int icnss_get_ce_id(int irq) |
| 361 | { |
| 362 | int ce_id = irq - 100; |
Orhan K AKYILDIZ | 0615891 | 2015-11-11 18:01:15 -0800 | [diff] [blame] | 363 | if (ce_id < CE_COUNT_MAX && ce_id >= 0) |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 364 | return ce_id; |
| 365 | |
| 366 | pr_err("icnss: No matching CE id for irq %d\n", irq); |
| 367 | return -EINVAL; |
| 368 | } |
| 369 | #endif /* HIF_PCI */ |