1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * 4 * Bluetooth support for Intel PCIe devices 5 * 6 * Copyright (C) 2024 Intel Corporation 7 */ 8 9 /* Control and Status Register(BTINTEL_PCIE_CSR) */ 10 #define BTINTEL_PCIE_CSR_BASE (0x000) 11 #define BTINTEL_PCIE_CSR_FUNC_CTRL_REG (BTINTEL_PCIE_CSR_BASE + 0x024) 12 #define BTINTEL_PCIE_CSR_HW_REV_REG (BTINTEL_PCIE_CSR_BASE + 0x028) 13 #define BTINTEL_PCIE_CSR_RF_ID_REG (BTINTEL_PCIE_CSR_BASE + 0x09C) 14 #define BTINTEL_PCIE_CSR_BOOT_STAGE_REG (BTINTEL_PCIE_CSR_BASE + 0x108) 15 #define BTINTEL_PCIE_CSR_IPC_CONTROL_REG (BTINTEL_PCIE_CSR_BASE + 0x10C) 16 #define BTINTEL_PCIE_CSR_IPC_STATUS_REG (BTINTEL_PCIE_CSR_BASE + 0x110) 17 #define BTINTEL_PCIE_CSR_IPC_SLEEP_CTL_REG (BTINTEL_PCIE_CSR_BASE + 0x114) 18 #define BTINTEL_PCIE_CSR_CI_ADDR_LSB_REG (BTINTEL_PCIE_CSR_BASE + 0x118) 19 #define BTINTEL_PCIE_CSR_CI_ADDR_MSB_REG (BTINTEL_PCIE_CSR_BASE + 0x11C) 20 #define BTINTEL_PCIE_CSR_IMG_RESPONSE_REG (BTINTEL_PCIE_CSR_BASE + 0x12C) 21 #define BTINTEL_PCIE_CSR_MBOX_1_REG (BTINTEL_PCIE_CSR_BASE + 0x170) 22 #define BTINTEL_PCIE_CSR_MBOX_2_REG (BTINTEL_PCIE_CSR_BASE + 0x174) 23 #define BTINTEL_PCIE_CSR_MBOX_3_REG (BTINTEL_PCIE_CSR_BASE + 0x178) 24 #define BTINTEL_PCIE_CSR_MBOX_4_REG (BTINTEL_PCIE_CSR_BASE + 0x17C) 25 #define BTINTEL_PCIE_CSR_MBOX_STATUS_REG (BTINTEL_PCIE_CSR_BASE + 0x180) 26 #define BTINTEL_PCIE_PRPH_DEV_ADDR_REG (BTINTEL_PCIE_CSR_BASE + 0x440) 27 #define BTINTEL_PCIE_PRPH_DEV_RD_REG (BTINTEL_PCIE_CSR_BASE + 0x458) 28 #define BTINTEL_PCIE_CSR_HBUS_TARG_WRPTR (BTINTEL_PCIE_CSR_BASE + 0x460) 29 30 /* BTINTEL_PCIE_CSR Function Control Register */ 31 #define BTINTEL_PCIE_CSR_FUNC_CTRL_FUNC_ENA (BIT(0)) 32 #define BTINTEL_PCIE_CSR_FUNC_CTRL_MAC_INIT (BIT(6)) 33 #define BTINTEL_PCIE_CSR_FUNC_CTRL_FUNC_INIT (BIT(7)) 34 #define BTINTEL_PCIE_CSR_FUNC_CTRL_MAC_ACCESS_STS (BIT(20)) 35 36 #define BTINTEL_PCIE_CSR_FUNC_CTRL_MAC_ACCESS_REQ (BIT(21)) 37 /* Stop MAC Access disconnection request */ 38 #define BTINTEL_PCIE_CSR_FUNC_CTRL_STOP_MAC_ACCESS_DIS (BIT(22)) 39 #define BTINTEL_PCIE_CSR_FUNC_CTRL_XTAL_CLK_REQ (BIT(23)) 40 41 #define BTINTEL_PCIE_CSR_FUNC_CTRL_BUS_MASTER_STS (BIT(28)) 42 #define BTINTEL_PCIE_CSR_FUNC_CTRL_BUS_MASTER_DISCON (BIT(29)) 43 #define BTINTEL_PCIE_CSR_FUNC_CTRL_SW_RESET (BIT(31)) 44 45 /* Value for BTINTEL_PCIE_CSR_BOOT_STAGE register */ 46 #define BTINTEL_PCIE_CSR_BOOT_STAGE_ROM (BIT(0)) 47 #define BTINTEL_PCIE_CSR_BOOT_STAGE_IML (BIT(1)) 48 #define BTINTEL_PCIE_CSR_BOOT_STAGE_OPFW (BIT(2)) 49 #define BTINTEL_PCIE_CSR_BOOT_STAGE_ROM_LOCKDOWN (BIT(10)) 50 #define BTINTEL_PCIE_CSR_BOOT_STAGE_IML_LOCKDOWN (BIT(11)) 51 #define BTINTEL_PCIE_CSR_BOOT_STAGE_DEVICE_ERR (BIT(12)) 52 #define BTINTEL_PCIE_CSR_BOOT_STAGE_ABORT_HANDLER (BIT(13)) 53 #define BTINTEL_PCIE_CSR_BOOT_STAGE_DEVICE_HALTED (BIT(14)) 54 #define BTINTEL_PCIE_CSR_BOOT_STAGE_MAC_ACCESS_ON (BIT(16)) 55 #define BTINTEL_PCIE_CSR_BOOT_STAGE_ALIVE (BIT(23)) 56 #define BTINTEL_PCIE_CSR_BOOT_STAGE_D3_STATE_READY (BIT(24)) 57 58 /* Registers for MSI-X */ 59 #define BTINTEL_PCIE_CSR_MSIX_BASE (0x2000) 60 #define BTINTEL_PCIE_CSR_MSIX_FH_INT_CAUSES (BTINTEL_PCIE_CSR_MSIX_BASE + 0x0800) 61 #define BTINTEL_PCIE_CSR_MSIX_FH_INT_MASK (BTINTEL_PCIE_CSR_MSIX_BASE + 0x0804) 62 #define BTINTEL_PCIE_CSR_MSIX_HW_INT_CAUSES (BTINTEL_PCIE_CSR_MSIX_BASE + 0x0808) 63 #define BTINTEL_PCIE_CSR_MSIX_HW_INT_MASK (BTINTEL_PCIE_CSR_MSIX_BASE + 0x080C) 64 #define BTINTEL_PCIE_CSR_MSIX_AUTOMASK_ST (BTINTEL_PCIE_CSR_MSIX_BASE + 0x0810) 65 #define BTINTEL_PCIE_CSR_MSIX_AUTOMASK_EN (BTINTEL_PCIE_CSR_MSIX_BASE + 0x0814) 66 #define BTINTEL_PCIE_CSR_MSIX_IVAR_BASE (BTINTEL_PCIE_CSR_MSIX_BASE + 0x0880) 67 #define BTINTEL_PCIE_CSR_MSIX_IVAR(cause) (BTINTEL_PCIE_CSR_MSIX_IVAR_BASE + (cause)) 68 69 /* IOSF Debug Register */ 70 #define BTINTEL_PCIE_DBGC_BASE_ADDR (0xf3800300) 71 #define BTINTEL_PCIE_DBGC_CUR_DBGBUFF_STATUS (BTINTEL_PCIE_DBGC_BASE_ADDR + 0x1C) 72 #define BTINTEL_PCIE_DBGC_DBGBUFF_WRAP_ARND (BTINTEL_PCIE_DBGC_BASE_ADDR + 0x2C) 73 74 #define BTINTEL_PCIE_DBG_IDX_BIT_MASK 0x0F 75 #define BTINTEL_PCIE_DBGC_DBG_BUF_IDX(data) (((data) >> 24) & BTINTEL_PCIE_DBG_IDX_BIT_MASK) 76 #define BTINTEL_PCIE_DBG_OFFSET_BIT_MASK 0xFFFFFF 77 78 /* The DRAM buffer count, each buffer size, and 79 * fragment buffer size 80 */ 81 #define BTINTEL_PCIE_DBGC_BUFFER_COUNT 16 82 #define BTINTEL_PCIE_DBGC_BUFFER_SIZE (256 * 1024) /* 256 KB */ 83 84 #define BTINTEL_PCIE_DBGC_FRAG_VERSION 1 85 #define BTINTEL_PCIE_DBGC_FRAG_BUFFER_COUNT BTINTEL_PCIE_DBGC_BUFFER_COUNT 86 87 /* Magic number(4), version(4), size of payload length(4) */ 88 #define BTINTEL_PCIE_DBGC_FRAG_HEADER_SIZE 12 89 90 /* Num of alloc Dbg buff (4) + (LSB(4), MSB(4), Size(4)) for each buffer */ 91 #define BTINTEL_PCIE_DBGC_FRAG_PAYLOAD_SIZE 196 92 93 /* Causes for the FH register interrupts */ 94 enum msix_fh_int_causes { 95 BTINTEL_PCIE_MSIX_FH_INT_CAUSES_0 = BIT(0), /* cause 0 */ 96 BTINTEL_PCIE_MSIX_FH_INT_CAUSES_1 = BIT(1), /* cause 1 */ 97 }; 98 99 /* Causes for the HW register interrupts */ 100 enum msix_hw_int_causes { 101 BTINTEL_PCIE_MSIX_HW_INT_CAUSES_GP0 = BIT(0), /* cause 32 */ 102 BTINTEL_PCIE_MSIX_HW_INT_CAUSES_GP1 = BIT(1), /* cause 33 */ 103 BTINTEL_PCIE_MSIX_HW_INT_CAUSES_HWEXP = BIT(3), /* cause 35 */ 104 }; 105 106 /* PCIe device states 107 * Host-Device interface is active 108 * Host-Device interface is inactive(as reflected by IPC_SLEEP_CONTROL_CSR_AD) 109 * Host-Device interface is inactive(as reflected by IPC_SLEEP_CONTROL_CSR_AD) 110 */ 111 enum { 112 BTINTEL_PCIE_STATE_D0 = 0, 113 BTINTEL_PCIE_STATE_D3_HOT = 2, 114 BTINTEL_PCIE_STATE_D3_COLD = 3, 115 }; 116 117 enum { 118 BTINTEL_PCIE_CORE_HALTED, 119 BTINTEL_PCIE_HWEXP_INPROGRESS, 120 BTINTEL_PCIE_COREDUMP_INPROGRESS, 121 BTINTEL_PCIE_RECOVERY_IN_PROGRESS, 122 BTINTEL_PCIE_SETUP_DONE 123 }; 124 125 enum btintel_pcie_tlv_type { 126 BTINTEL_CNVI_BT, 127 BTINTEL_WRITE_PTR, 128 BTINTEL_WRAP_CTR, 129 BTINTEL_TRIGGER_REASON, 130 BTINTEL_FW_SHA, 131 BTINTEL_CNVR_TOP, 132 BTINTEL_CNVI_TOP, 133 BTINTEL_DUMP_TIME, 134 BTINTEL_FW_BUILD, 135 }; 136 137 /* causes for the MBOX interrupts */ 138 enum msix_mbox_int_causes { 139 BTINTEL_PCIE_CSR_MBOX_STATUS_MBOX1 = BIT(0), /* cause MBOX1 */ 140 BTINTEL_PCIE_CSR_MBOX_STATUS_MBOX2 = BIT(1), /* cause MBOX2 */ 141 BTINTEL_PCIE_CSR_MBOX_STATUS_MBOX3 = BIT(2), /* cause MBOX3 */ 142 BTINTEL_PCIE_CSR_MBOX_STATUS_MBOX4 = BIT(3), /* cause MBOX4 */ 143 }; 144 145 #define BTINTEL_PCIE_MSIX_NON_AUTO_CLEAR_CAUSE BIT(7) 146 147 /* Minimum and Maximum number of MSI-X Vector 148 * Intel Bluetooth PCIe support only 1 vector 149 */ 150 #define BTINTEL_PCIE_MSIX_VEC_MAX 1 151 #define BTINTEL_PCIE_MSIX_VEC_MIN 1 152 153 /* Default poll time for MAC access during init */ 154 #define BTINTEL_DEFAULT_MAC_ACCESS_TIMEOUT_US 200000 155 156 /* Default interrupt timeout in msec */ 157 #define BTINTEL_DEFAULT_INTR_TIMEOUT_MS 3000 158 159 /* The number of descriptors in TX queues */ 160 #define BTINTEL_PCIE_TX_DESCS_COUNT 32 161 162 /* The number of descriptors in RX queues */ 163 #define BTINTEL_PCIE_RX_DESCS_COUNT 64 164 165 /* Number of Queue for TX and RX 166 * It indicates the index of the IA(Index Array) 167 */ 168 enum { 169 BTINTEL_PCIE_TXQ_NUM = 0, 170 BTINTEL_PCIE_RXQ_NUM = 1, 171 BTINTEL_PCIE_NUM_QUEUES = 2, 172 }; 173 174 /* The size of DMA buffer for TX and RX in bytes */ 175 #define BTINTEL_PCIE_BUFFER_SIZE 4096 176 177 /* DMA allocation alignment */ 178 #define BTINTEL_PCIE_DMA_POOL_ALIGNMENT 256 179 180 #define BTINTEL_PCIE_TX_WAIT_TIMEOUT_MS 500 181 182 /* Doorbell vector for TFD */ 183 #define BTINTEL_PCIE_TX_DB_VEC 0 184 185 /* Doorbell vector for FRBD */ 186 #define BTINTEL_PCIE_RX_DB_VEC 513 187 188 /* RBD buffer size mapping */ 189 #define BTINTEL_PCIE_RBD_SIZE_4K 0x04 190 191 /* 192 * Struct for Context Information (v2) 193 * 194 * All members are write-only for host and read-only for device. 195 * 196 * @version: Version of context information 197 * @size: Size of context information 198 * @config: Config with which host wants peripheral to execute 199 * Subset of capability register published by device 200 * @addr_tr_hia: Address of TR Head Index Array 201 * @addr_tr_tia: Address of TR Tail Index Array 202 * @addr_cr_hia: Address of CR Head Index Array 203 * @addr_cr_tia: Address of CR Tail Index Array 204 * @num_tr_ia: Number of entries in TR Index Arrays 205 * @num_cr_ia: Number of entries in CR Index Arrays 206 * @rbd_siz: RBD Size { 0x4=4K } 207 * @addr_tfdq: Address of TFD Queue(tx) 208 * @addr_urbdq0: Address of URBD Queue(tx) 209 * @num_tfdq: Number of TFD in TFD Queue(tx) 210 * @num_urbdq0: Number of URBD in URBD Queue(tx) 211 * @tfdq_db_vec: Queue number of TFD 212 * @urbdq0_db_vec: Queue number of URBD 213 * @addr_frbdq: Address of FRBD Queue(rx) 214 * @addr_urbdq1: Address of URBD Queue(rx) 215 * @num_frbdq: Number of FRBD in FRBD Queue(rx) 216 * @frbdq_db_vec: Queue number of FRBD 217 * @num_urbdq1: Number of URBD in URBD Queue(rx) 218 * @urbdq_db_vec: Queue number of URBDQ1 219 * @tr_msi_vec: Transfer Ring MSI-X Vector 220 * @cr_msi_vec: Completion Ring MSI-X Vector 221 * @dbgc_addr: DBGC first fragment address 222 * @dbgc_size: DBGC buffer size 223 * @early_enable: Enarly debug enable 224 * @dbg_output_mode: Debug output mode 225 * Bit[4] DBGC O/P { 0=SRAM, 1=DRAM(not relevant for NPK) } 226 * Bit[5] DBGC I/P { 0=BDBG, 1=DBGI } 227 * Bits[6:7] DBGI O/P(relevant if bit[5] = 1) 228 * 0=BT DBGC, 1=WiFi DBGC, 2=NPK } 229 * @dbg_preset: Debug preset 230 * @ext_addr: Address of context information extension 231 * @ext_size: Size of context information part 232 * 233 * Total 38 DWords 234 */ 235 struct ctx_info { 236 u16 version; 237 u16 size; 238 u32 config; 239 u32 reserved_dw02; 240 u32 reserved_dw03; 241 u64 addr_tr_hia; 242 u64 addr_tr_tia; 243 u64 addr_cr_hia; 244 u64 addr_cr_tia; 245 u16 num_tr_ia; 246 u16 num_cr_ia; 247 u32 rbd_size:4, 248 reserved_dw13:28; 249 u64 addr_tfdq; 250 u64 addr_urbdq0; 251 u16 num_tfdq; 252 u16 num_urbdq0; 253 u16 tfdq_db_vec; 254 u16 urbdq0_db_vec; 255 u64 addr_frbdq; 256 u64 addr_urbdq1; 257 u16 num_frbdq; 258 u16 frbdq_db_vec; 259 u16 num_urbdq1; 260 u16 urbdq_db_vec; 261 u16 tr_msi_vec; 262 u16 cr_msi_vec; 263 u32 reserved_dw27; 264 u64 dbgc_addr; 265 u32 dbgc_size; 266 u32 early_enable:1, 267 reserved_dw31:3, 268 dbg_output_mode:4, 269 dbg_preset:8, 270 reserved2_dw31:16; 271 u64 ext_addr; 272 u32 ext_size; 273 u32 test_param; 274 u32 reserved_dw36; 275 u32 reserved_dw37; 276 } __packed; 277 278 /* Transfer Descriptor for TX 279 * @type: Not in use. Set to 0x0 280 * @size: Size of data in the buffer 281 * @addr: DMA Address of buffer 282 */ 283 struct tfd { 284 u8 type; 285 u16 size; 286 u8 reserved; 287 u64 addr; 288 u32 reserved1; 289 } __packed; 290 291 /* URB Descriptor for TX 292 * @tfd_index: Index of TFD in TFDQ + 1 293 * @num_txq: Queue index of TFD Queue 294 * @cmpl_count: Completion count. Always 0x01 295 * @immediate_cmpl: Immediate completion flag: Always 0x01 296 */ 297 struct urbd0 { 298 u32 tfd_index:16, 299 num_txq:8, 300 cmpl_count:4, 301 reserved:3, 302 immediate_cmpl:1; 303 } __packed; 304 305 /* FRB Descriptor for RX 306 * @tag: RX buffer tag (index of RX buffer queue) 307 * @addr: Address of buffer 308 */ 309 struct frbd { 310 u32 tag:16, 311 reserved:16; 312 u32 reserved2; 313 u64 addr; 314 } __packed; 315 316 /* URB Descriptor for RX 317 * @frbd_tag: Tag from FRBD 318 * @status: Status 319 */ 320 struct urbd1 { 321 u32 frbd_tag:16, 322 status:1, 323 reserved:14, 324 fixed:1; 325 } __packed; 326 327 /* RFH header in RX packet 328 * @packet_len: Length of the data in the buffer 329 * @rxq: RX Queue number 330 * @cmd_id: Command ID. Not in Use 331 */ 332 struct rfh_hdr { 333 u64 packet_len:16, 334 rxq:6, 335 reserved:10, 336 cmd_id:16, 337 reserved1:16; 338 } __packed; 339 340 /* Internal data buffer 341 * @data: pointer to the data buffer 342 * @p_addr: physical address of data buffer 343 */ 344 struct data_buf { 345 u8 *data; 346 dma_addr_t data_p_addr; 347 }; 348 349 /* Index Array */ 350 struct ia { 351 dma_addr_t tr_hia_p_addr; 352 u16 *tr_hia; 353 dma_addr_t tr_tia_p_addr; 354 u16 *tr_tia; 355 dma_addr_t cr_hia_p_addr; 356 u16 *cr_hia; 357 dma_addr_t cr_tia_p_addr; 358 u16 *cr_tia; 359 }; 360 361 /* Structure for TX Queue 362 * @count: Number of descriptors 363 * @tfds: Array of TFD 364 * @urbd0s: Array of URBD0 365 * @buf: Array of data_buf structure 366 */ 367 struct txq { 368 u16 count; 369 370 dma_addr_t tfds_p_addr; 371 struct tfd *tfds; 372 373 dma_addr_t urbd0s_p_addr; 374 struct urbd0 *urbd0s; 375 376 dma_addr_t buf_p_addr; 377 void *buf_v_addr; 378 struct data_buf *bufs; 379 }; 380 381 /* Structure for RX Queue 382 * @count: Number of descriptors 383 * @frbds: Array of FRBD 384 * @urbd1s: Array of URBD1 385 * @buf: Array of data_buf structure 386 */ 387 struct rxq { 388 u16 count; 389 390 dma_addr_t frbds_p_addr; 391 struct frbd *frbds; 392 393 dma_addr_t urbd1s_p_addr; 394 struct urbd1 *urbd1s; 395 396 dma_addr_t buf_p_addr; 397 void *buf_v_addr; 398 struct data_buf *bufs; 399 }; 400 401 /* Structure for DRAM Buffer 402 * @count: Number of descriptors 403 * @buf: Array of data_buf structure 404 */ 405 struct btintel_pcie_dbgc { 406 u16 count; 407 408 void *frag_v_addr; 409 dma_addr_t frag_p_addr; 410 u16 frag_size; 411 412 dma_addr_t buf_p_addr; 413 void *buf_v_addr; 414 struct data_buf *bufs; 415 }; 416 417 struct btintel_pcie_dump_header { 418 const char *driver_name; 419 u32 cnvi_top; 420 u32 cnvr_top; 421 u16 fw_timestamp; 422 u8 fw_build_type; 423 u32 fw_build_num; 424 u32 fw_git_sha1; 425 u32 cnvi_bt; 426 u32 write_ptr; 427 u32 wrap_ctr; 428 u16 trigger_reason; 429 int state; 430 }; 431 432 /* struct btintel_pcie_data 433 * @pdev: pci device 434 * @hdev: hdev device 435 * @flags: driver state 436 * @irq_lock: spinlock for MSI-X 437 * @hci_rx_lock: spinlock for HCI RX flow 438 * @base_addr: pci base address (from BAR) 439 * @msix_entries: array of MSI-X entries 440 * @msix_enabled: true if MSI-X is enabled; 441 * @alloc_vecs: number of interrupt vectors allocated 442 * @def_irq: default irq for all causes 443 * @fh_init_mask: initial unmasked rxq causes 444 * @hw_init_mask: initial unmaksed hw causes 445 * @boot_stage_cache: cached value of boot stage register 446 * @img_resp_cache: cached value of image response register 447 * @cnvi: CNVi register value 448 * @cnvr: CNVr register value 449 * @gp0_received: condition for gp0 interrupt 450 * @gp0_wait_q: wait_q for gp0 interrupt 451 * @tx_wait_done: condition for tx interrupt 452 * @tx_wait_q: wait_q for tx interrupt 453 * @workqueue: workqueue for RX work 454 * @rx_skb_q: SKB queue for RX packet 455 * @rx_work: RX work struct to process the RX packet in @rx_skb_q 456 * @dma_pool: DMA pool for descriptors, index array and ci 457 * @dma_p_addr: DMA address for pool 458 * @dma_v_addr: address of pool 459 * @ci_p_addr: DMA address for CI struct 460 * @ci: CI struct 461 * @ia: Index Array struct 462 * @txq: TX Queue struct 463 * @rxq: RX Queue struct 464 * @alive_intr_ctxt: Alive interrupt context 465 */ 466 struct btintel_pcie_data { 467 struct pci_dev *pdev; 468 struct hci_dev *hdev; 469 470 unsigned long flags; 471 /* lock used in MSI-X interrupt */ 472 spinlock_t irq_lock; 473 /* lock to serialize rx events */ 474 spinlock_t hci_rx_lock; 475 476 void __iomem *base_addr; 477 478 struct msix_entry msix_entries[BTINTEL_PCIE_MSIX_VEC_MAX]; 479 bool msix_enabled; 480 u32 alloc_vecs; 481 u32 def_irq; 482 483 u32 fh_init_mask; 484 u32 hw_init_mask; 485 486 u32 boot_stage_cache; 487 u32 img_resp_cache; 488 489 u32 cnvi; 490 u32 cnvr; 491 492 bool gp0_received; 493 wait_queue_head_t gp0_wait_q; 494 495 bool tx_wait_done; 496 wait_queue_head_t tx_wait_q; 497 498 struct workqueue_struct *workqueue; 499 struct sk_buff_head rx_skb_q; 500 struct work_struct rx_work; 501 502 struct dma_pool *dma_pool; 503 dma_addr_t dma_p_addr; 504 void *dma_v_addr; 505 506 dma_addr_t ci_p_addr; 507 struct ctx_info *ci; 508 struct ia ia; 509 struct txq txq; 510 struct rxq rxq; 511 u32 alive_intr_ctxt; 512 struct btintel_pcie_dbgc dbgc; 513 struct btintel_pcie_dump_header dmp_hdr; 514 }; 515 516 static inline u32 btintel_pcie_rd_reg32(struct btintel_pcie_data *data, 517 u32 offset) 518 { 519 return ioread32(data->base_addr + offset); 520 } 521 522 static inline void btintel_pcie_wr_reg8(struct btintel_pcie_data *data, 523 u32 offset, u8 val) 524 { 525 iowrite8(val, data->base_addr + offset); 526 } 527 528 static inline void btintel_pcie_wr_reg32(struct btintel_pcie_data *data, 529 u32 offset, u32 val) 530 { 531 iowrite32(val, data->base_addr + offset); 532 } 533 534 static inline void btintel_pcie_set_reg_bits(struct btintel_pcie_data *data, 535 u32 offset, u32 bits) 536 { 537 u32 r; 538 539 r = ioread32(data->base_addr + offset); 540 r |= bits; 541 iowrite32(r, data->base_addr + offset); 542 } 543 544 static inline void btintel_pcie_clr_reg_bits(struct btintel_pcie_data *data, 545 u32 offset, u32 bits) 546 { 547 u32 r; 548 549 r = ioread32(data->base_addr + offset); 550 r &= ~bits; 551 iowrite32(r, data->base_addr + offset); 552 } 553 554 static inline u32 btintel_pcie_rd_dev_mem(struct btintel_pcie_data *data, 555 u32 addr) 556 { 557 btintel_pcie_wr_reg32(data, BTINTEL_PCIE_PRPH_DEV_ADDR_REG, addr); 558 return btintel_pcie_rd_reg32(data, BTINTEL_PCIE_PRPH_DEV_RD_REG); 559 } 560 561