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daeccac2 AS |
1 | // SPDX-License-Identifier: ISC |
2 | /* | |
3 | * Copyright (c) 2014 Broadcom Corporation | |
9e37f045 HM |
4 | */ |
5 | ||
6 | #include <linux/kernel.h> | |
7 | #include <linux/module.h> | |
8 | #include <linux/firmware.h> | |
9 | #include <linux/pci.h> | |
10 | #include <linux/vmalloc.h> | |
11 | #include <linux/delay.h> | |
9e37f045 HM |
12 | #include <linux/interrupt.h> |
13 | #include <linux/bcma/bcma.h> | |
14 | #include <linux/sched.h> | |
a1d69c60 | 15 | #include <asm/unaligned.h> |
9e37f045 HM |
16 | |
17 | #include <soc.h> | |
18 | #include <chipcommon.h> | |
19 | #include <brcmu_utils.h> | |
20 | #include <brcmu_wifi.h> | |
21 | #include <brcm_hw_ids.h> | |
22 | ||
8602e624 RM |
23 | /* Custom brcmf_err() that takes bus arg and passes it further */ |
24 | #define brcmf_err(bus, fmt, ...) \ | |
25 | do { \ | |
26 | if (IS_ENABLED(CONFIG_BRCMDBG) || \ | |
27 | IS_ENABLED(CONFIG_BRCM_TRACING) || \ | |
28 | net_ratelimit()) \ | |
29 | __brcmf_err(bus, __func__, fmt, ##__VA_ARGS__); \ | |
30 | } while (0) | |
31 | ||
a8e8ed34 | 32 | #include "debug.h" |
d14f78b9 | 33 | #include "bus.h" |
9e37f045 HM |
34 | #include "commonring.h" |
35 | #include "msgbuf.h" | |
36 | #include "pcie.h" | |
37 | #include "firmware.h" | |
38 | #include "chip.h" | |
af5b5e62 HM |
39 | #include "core.h" |
40 | #include "common.h" | |
9e37f045 HM |
41 | |
42 | ||
43 | enum brcmf_pcie_state { | |
44 | BRCMFMAC_PCIE_STATE_DOWN, | |
45 | BRCMFMAC_PCIE_STATE_UP | |
46 | }; | |
47 | ||
41f573db AVS |
48 | BRCMF_FW_DEF(43602, "brcmfmac43602-pcie"); |
49 | BRCMF_FW_DEF(4350, "brcmfmac4350-pcie"); | |
50 | BRCMF_FW_DEF(4350C, "brcmfmac4350c2-pcie"); | |
51 | BRCMF_FW_DEF(4356, "brcmfmac4356-pcie"); | |
52 | BRCMF_FW_DEF(43570, "brcmfmac43570-pcie"); | |
53 | BRCMF_FW_DEF(4358, "brcmfmac4358-pcie"); | |
54 | BRCMF_FW_DEF(4359, "brcmfmac4359-pcie"); | |
55 | BRCMF_FW_DEF(4365B, "brcmfmac4365b-pcie"); | |
56 | BRCMF_FW_DEF(4365C, "brcmfmac4365c-pcie"); | |
57 | BRCMF_FW_DEF(4366B, "brcmfmac4366b-pcie"); | |
58 | BRCMF_FW_DEF(4366C, "brcmfmac4366c-pcie"); | |
59 | BRCMF_FW_DEF(4371, "brcmfmac4371-pcie"); | |
46d703a7 | 60 | |
ff68c9f9 | 61 | static const struct brcmf_firmware_mapping brcmf_pcie_fwnames[] = { |
41f573db AVS |
62 | BRCMF_FW_ENTRY(BRCM_CC_43602_CHIP_ID, 0xFFFFFFFF, 43602), |
63 | BRCMF_FW_ENTRY(BRCM_CC_43465_CHIP_ID, 0xFFFFFFF0, 4366C), | |
64 | BRCMF_FW_ENTRY(BRCM_CC_4350_CHIP_ID, 0x000000FF, 4350C), | |
65 | BRCMF_FW_ENTRY(BRCM_CC_4350_CHIP_ID, 0xFFFFFF00, 4350), | |
66 | BRCMF_FW_ENTRY(BRCM_CC_43525_CHIP_ID, 0xFFFFFFF0, 4365C), | |
67 | BRCMF_FW_ENTRY(BRCM_CC_4356_CHIP_ID, 0xFFFFFFFF, 4356), | |
68 | BRCMF_FW_ENTRY(BRCM_CC_43567_CHIP_ID, 0xFFFFFFFF, 43570), | |
69 | BRCMF_FW_ENTRY(BRCM_CC_43569_CHIP_ID, 0xFFFFFFFF, 43570), | |
70 | BRCMF_FW_ENTRY(BRCM_CC_43570_CHIP_ID, 0xFFFFFFFF, 43570), | |
71 | BRCMF_FW_ENTRY(BRCM_CC_4358_CHIP_ID, 0xFFFFFFFF, 4358), | |
72 | BRCMF_FW_ENTRY(BRCM_CC_4359_CHIP_ID, 0xFFFFFFFF, 4359), | |
73 | BRCMF_FW_ENTRY(BRCM_CC_4365_CHIP_ID, 0x0000000F, 4365B), | |
74 | BRCMF_FW_ENTRY(BRCM_CC_4365_CHIP_ID, 0xFFFFFFF0, 4365C), | |
75 | BRCMF_FW_ENTRY(BRCM_CC_4366_CHIP_ID, 0x0000000F, 4366B), | |
76 | BRCMF_FW_ENTRY(BRCM_CC_4366_CHIP_ID, 0xFFFFFFF0, 4366C), | |
1f589e25 | 77 | BRCMF_FW_ENTRY(BRCM_CC_43664_CHIP_ID, 0xFFFFFFF0, 4366C), |
41f573db | 78 | BRCMF_FW_ENTRY(BRCM_CC_4371_CHIP_ID, 0xFFFFFFFF, 4371), |
46d703a7 | 79 | }; |
9e37f045 HM |
80 | |
81 | #define BRCMF_PCIE_FW_UP_TIMEOUT 2000 /* msec */ | |
82 | ||
9e37f045 HM |
83 | #define BRCMF_PCIE_REG_MAP_SIZE (32 * 1024) |
84 | ||
85 | /* backplane addres space accessed by BAR0 */ | |
86 | #define BRCMF_PCIE_BAR0_WINDOW 0x80 | |
87 | #define BRCMF_PCIE_BAR0_REG_SIZE 0x1000 | |
88 | #define BRCMF_PCIE_BAR0_WRAPPERBASE 0x70 | |
89 | ||
90 | #define BRCMF_PCIE_BAR0_WRAPBASE_DMP_OFFSET 0x1000 | |
91 | #define BRCMF_PCIE_BARO_PCIE_ENUM_OFFSET 0x2000 | |
92 | ||
93 | #define BRCMF_PCIE_ARMCR4REG_BANKIDX 0x40 | |
94 | #define BRCMF_PCIE_ARMCR4REG_BANKPDA 0x4C | |
95 | ||
96 | #define BRCMF_PCIE_REG_INTSTATUS 0x90 | |
97 | #define BRCMF_PCIE_REG_INTMASK 0x94 | |
98 | #define BRCMF_PCIE_REG_SBMBX 0x98 | |
99 | ||
07fe2e38 HM |
100 | #define BRCMF_PCIE_REG_LINK_STATUS_CTRL 0xBC |
101 | ||
9e37f045 HM |
102 | #define BRCMF_PCIE_PCIE2REG_INTMASK 0x24 |
103 | #define BRCMF_PCIE_PCIE2REG_MAILBOXINT 0x48 | |
104 | #define BRCMF_PCIE_PCIE2REG_MAILBOXMASK 0x4C | |
105 | #define BRCMF_PCIE_PCIE2REG_CONFIGADDR 0x120 | |
106 | #define BRCMF_PCIE_PCIE2REG_CONFIGDATA 0x124 | |
84ad327d FL |
107 | #define BRCMF_PCIE_PCIE2REG_H2D_MAILBOX_0 0x140 |
108 | #define BRCMF_PCIE_PCIE2REG_H2D_MAILBOX_1 0x144 | |
9e37f045 | 109 | |
9e37f045 HM |
110 | #define BRCMF_PCIE2_INTA 0x01 |
111 | #define BRCMF_PCIE2_INTB 0x02 | |
112 | ||
113 | #define BRCMF_PCIE_INT_0 0x01 | |
114 | #define BRCMF_PCIE_INT_1 0x02 | |
115 | #define BRCMF_PCIE_INT_DEF (BRCMF_PCIE_INT_0 | \ | |
116 | BRCMF_PCIE_INT_1) | |
117 | ||
118 | #define BRCMF_PCIE_MB_INT_FN0_0 0x0100 | |
119 | #define BRCMF_PCIE_MB_INT_FN0_1 0x0200 | |
120 | #define BRCMF_PCIE_MB_INT_D2H0_DB0 0x10000 | |
121 | #define BRCMF_PCIE_MB_INT_D2H0_DB1 0x20000 | |
122 | #define BRCMF_PCIE_MB_INT_D2H1_DB0 0x40000 | |
123 | #define BRCMF_PCIE_MB_INT_D2H1_DB1 0x80000 | |
124 | #define BRCMF_PCIE_MB_INT_D2H2_DB0 0x100000 | |
125 | #define BRCMF_PCIE_MB_INT_D2H2_DB1 0x200000 | |
126 | #define BRCMF_PCIE_MB_INT_D2H3_DB0 0x400000 | |
127 | #define BRCMF_PCIE_MB_INT_D2H3_DB1 0x800000 | |
128 | ||
129 | #define BRCMF_PCIE_MB_INT_D2H_DB (BRCMF_PCIE_MB_INT_D2H0_DB0 | \ | |
130 | BRCMF_PCIE_MB_INT_D2H0_DB1 | \ | |
131 | BRCMF_PCIE_MB_INT_D2H1_DB0 | \ | |
132 | BRCMF_PCIE_MB_INT_D2H1_DB1 | \ | |
133 | BRCMF_PCIE_MB_INT_D2H2_DB0 | \ | |
134 | BRCMF_PCIE_MB_INT_D2H2_DB1 | \ | |
135 | BRCMF_PCIE_MB_INT_D2H3_DB0 | \ | |
136 | BRCMF_PCIE_MB_INT_D2H3_DB1) | |
137 | ||
f56324ba | 138 | #define BRCMF_PCIE_SHARED_VERSION_7 7 |
fd5e8cb8 | 139 | #define BRCMF_PCIE_MIN_SHARED_VERSION 5 |
f56324ba | 140 | #define BRCMF_PCIE_MAX_SHARED_VERSION BRCMF_PCIE_SHARED_VERSION_7 |
9e37f045 | 141 | #define BRCMF_PCIE_SHARED_VERSION_MASK 0x00FF |
f3550aeb FL |
142 | #define BRCMF_PCIE_SHARED_DMA_INDEX 0x10000 |
143 | #define BRCMF_PCIE_SHARED_DMA_2B_IDX 0x100000 | |
84ad327d | 144 | #define BRCMF_PCIE_SHARED_HOSTRDY_DB1 0x10000000 |
9e37f045 HM |
145 | |
146 | #define BRCMF_PCIE_FLAGS_HTOD_SPLIT 0x4000 | |
147 | #define BRCMF_PCIE_FLAGS_DTOH_SPLIT 0x8000 | |
148 | ||
149 | #define BRCMF_SHARED_MAX_RXBUFPOST_OFFSET 34 | |
150 | #define BRCMF_SHARED_RING_BASE_OFFSET 52 | |
151 | #define BRCMF_SHARED_RX_DATAOFFSET_OFFSET 36 | |
152 | #define BRCMF_SHARED_CONSOLE_ADDR_OFFSET 20 | |
153 | #define BRCMF_SHARED_HTOD_MB_DATA_ADDR_OFFSET 40 | |
154 | #define BRCMF_SHARED_DTOH_MB_DATA_ADDR_OFFSET 44 | |
155 | #define BRCMF_SHARED_RING_INFO_ADDR_OFFSET 48 | |
156 | #define BRCMF_SHARED_DMA_SCRATCH_LEN_OFFSET 52 | |
157 | #define BRCMF_SHARED_DMA_SCRATCH_ADDR_OFFSET 56 | |
158 | #define BRCMF_SHARED_DMA_RINGUPD_LEN_OFFSET 64 | |
159 | #define BRCMF_SHARED_DMA_RINGUPD_ADDR_OFFSET 68 | |
160 | ||
161 | #define BRCMF_RING_H2D_RING_COUNT_OFFSET 0 | |
162 | #define BRCMF_RING_D2H_RING_COUNT_OFFSET 1 | |
163 | #define BRCMF_RING_H2D_RING_MEM_OFFSET 4 | |
164 | #define BRCMF_RING_H2D_RING_STATE_OFFSET 8 | |
165 | ||
166 | #define BRCMF_RING_MEM_BASE_ADDR_OFFSET 8 | |
167 | #define BRCMF_RING_MAX_ITEM_OFFSET 4 | |
168 | #define BRCMF_RING_LEN_ITEMS_OFFSET 6 | |
169 | #define BRCMF_RING_MEM_SZ 16 | |
170 | #define BRCMF_RING_STATE_SZ 8 | |
171 | ||
9e37f045 HM |
172 | #define BRCMF_DEF_MAX_RXBUFPOST 255 |
173 | ||
174 | #define BRCMF_CONSOLE_BUFADDR_OFFSET 8 | |
175 | #define BRCMF_CONSOLE_BUFSIZE_OFFSET 12 | |
176 | #define BRCMF_CONSOLE_WRITEIDX_OFFSET 16 | |
177 | ||
178 | #define BRCMF_DMA_D2H_SCRATCH_BUF_LEN 8 | |
179 | #define BRCMF_DMA_D2H_RINGUPD_BUF_LEN 1024 | |
180 | ||
181 | #define BRCMF_D2H_DEV_D3_ACK 0x00000001 | |
182 | #define BRCMF_D2H_DEV_DS_ENTER_REQ 0x00000002 | |
183 | #define BRCMF_D2H_DEV_DS_EXIT_NOTE 0x00000004 | |
8a3ab2f3 | 184 | #define BRCMF_D2H_DEV_FWHALT 0x10000000 |
9e37f045 HM |
185 | |
186 | #define BRCMF_H2D_HOST_D3_INFORM 0x00000001 | |
187 | #define BRCMF_H2D_HOST_DS_ACK 0x00000002 | |
4eb3af7c HM |
188 | #define BRCMF_H2D_HOST_D0_INFORM_IN_USE 0x00000008 |
189 | #define BRCMF_H2D_HOST_D0_INFORM 0x00000010 | |
9e37f045 | 190 | |
63ce3d5d | 191 | #define BRCMF_PCIE_MBDATA_TIMEOUT msecs_to_jiffies(2000) |
9e37f045 | 192 | |
bd4f82e3 HM |
193 | #define BRCMF_PCIE_CFGREG_STATUS_CMD 0x4 |
194 | #define BRCMF_PCIE_CFGREG_PM_CSR 0x4C | |
195 | #define BRCMF_PCIE_CFGREG_MSI_CAP 0x58 | |
196 | #define BRCMF_PCIE_CFGREG_MSI_ADDR_L 0x5C | |
197 | #define BRCMF_PCIE_CFGREG_MSI_ADDR_H 0x60 | |
198 | #define BRCMF_PCIE_CFGREG_MSI_DATA 0x64 | |
199 | #define BRCMF_PCIE_CFGREG_LINK_STATUS_CTRL 0xBC | |
200 | #define BRCMF_PCIE_CFGREG_LINK_STATUS_CTRL2 0xDC | |
201 | #define BRCMF_PCIE_CFGREG_RBAR_CTRL 0x228 | |
202 | #define BRCMF_PCIE_CFGREG_PML1_SUB_CTRL1 0x248 | |
203 | #define BRCMF_PCIE_CFGREG_REG_BAR2_CONFIG 0x4E0 | |
204 | #define BRCMF_PCIE_CFGREG_REG_BAR3_CONFIG 0x4F4 | |
205 | #define BRCMF_PCIE_LINK_STATUS_CTRL_ASPM_ENAB 3 | |
206 | ||
6ac27689 HM |
207 | /* Magic number at a magic location to find RAM size */ |
208 | #define BRCMF_RAMSIZE_MAGIC 0x534d4152 /* SMAR */ | |
209 | #define BRCMF_RAMSIZE_OFFSET 0x6c | |
210 | ||
9e37f045 | 211 | |
9e37f045 HM |
212 | struct brcmf_pcie_console { |
213 | u32 base_addr; | |
214 | u32 buf_addr; | |
215 | u32 bufsize; | |
216 | u32 read_idx; | |
217 | u8 log_str[256]; | |
218 | u8 log_idx; | |
219 | }; | |
220 | ||
221 | struct brcmf_pcie_shared_info { | |
222 | u32 tcm_base_address; | |
223 | u32 flags; | |
224 | struct brcmf_pcie_ringbuf *commonrings[BRCMF_NROF_COMMON_MSGRINGS]; | |
225 | struct brcmf_pcie_ringbuf *flowrings; | |
226 | u16 max_rxbufpost; | |
be4b092c FL |
227 | u16 max_flowrings; |
228 | u16 max_submissionrings; | |
229 | u16 max_completionrings; | |
9e37f045 HM |
230 | u32 rx_dataoffset; |
231 | u32 htod_mb_data_addr; | |
232 | u32 dtoh_mb_data_addr; | |
233 | u32 ring_info_addr; | |
234 | struct brcmf_pcie_console console; | |
235 | void *scratch; | |
236 | dma_addr_t scratch_dmahandle; | |
237 | void *ringupd; | |
238 | dma_addr_t ringupd_dmahandle; | |
be4b092c | 239 | u8 version; |
9e37f045 HM |
240 | }; |
241 | ||
242 | struct brcmf_pcie_core_info { | |
243 | u32 base; | |
244 | u32 wrapbase; | |
245 | }; | |
246 | ||
247 | struct brcmf_pciedev_info { | |
248 | enum brcmf_pcie_state state; | |
249 | bool in_irq; | |
9e37f045 | 250 | struct pci_dev *pdev; |
46d703a7 HM |
251 | char fw_name[BRCMF_FW_NAME_LEN]; |
252 | char nvram_name[BRCMF_FW_NAME_LEN]; | |
9e37f045 HM |
253 | void __iomem *regs; |
254 | void __iomem *tcm; | |
9e37f045 HM |
255 | u32 ram_base; |
256 | u32 ram_size; | |
257 | struct brcmf_chip *ci; | |
258 | u32 coreid; | |
9e37f045 | 259 | struct brcmf_pcie_shared_info shared; |
9e37f045 HM |
260 | wait_queue_head_t mbdata_resp_wait; |
261 | bool mbdata_completed; | |
262 | bool irq_allocated; | |
4eb3af7c | 263 | bool wowl_enabled; |
f3550aeb FL |
264 | u8 dma_idx_sz; |
265 | void *idxbuf; | |
266 | u32 idxbuf_sz; | |
267 | dma_addr_t idxbuf_dmahandle; | |
268 | u16 (*read_ptr)(struct brcmf_pciedev_info *devinfo, u32 mem_offset); | |
269 | void (*write_ptr)(struct brcmf_pciedev_info *devinfo, u32 mem_offset, | |
270 | u16 value); | |
af5b5e62 | 271 | struct brcmf_mp_device *settings; |
9e37f045 HM |
272 | }; |
273 | ||
274 | struct brcmf_pcie_ringbuf { | |
275 | struct brcmf_commonring commonring; | |
276 | dma_addr_t dma_handle; | |
277 | u32 w_idx_addr; | |
278 | u32 r_idx_addr; | |
279 | struct brcmf_pciedev_info *devinfo; | |
280 | u8 id; | |
281 | }; | |
282 | ||
be4b092c FL |
283 | /** |
284 | * struct brcmf_pcie_dhi_ringinfo - dongle/host interface shared ring info | |
285 | * | |
286 | * @ringmem: dongle memory pointer to ring memory location | |
287 | * @h2d_w_idx_ptr: h2d ring write indices dongle memory pointers | |
288 | * @h2d_r_idx_ptr: h2d ring read indices dongle memory pointers | |
289 | * @d2h_w_idx_ptr: d2h ring write indices dongle memory pointers | |
290 | * @d2h_r_idx_ptr: d2h ring read indices dongle memory pointers | |
291 | * @h2d_w_idx_hostaddr: h2d ring write indices host memory pointers | |
292 | * @h2d_r_idx_hostaddr: h2d ring read indices host memory pointers | |
293 | * @d2h_w_idx_hostaddr: d2h ring write indices host memory pointers | |
294 | * @d2h_r_idx_hostaddr: d2h ring reaD indices host memory pointers | |
295 | * @max_flowrings: maximum number of tx flow rings supported. | |
296 | * @max_submissionrings: maximum number of submission rings(h2d) supported. | |
297 | * @max_completionrings: maximum number of completion rings(d2h) supported. | |
298 | */ | |
299 | struct brcmf_pcie_dhi_ringinfo { | |
300 | __le32 ringmem; | |
301 | __le32 h2d_w_idx_ptr; | |
302 | __le32 h2d_r_idx_ptr; | |
303 | __le32 d2h_w_idx_ptr; | |
304 | __le32 d2h_r_idx_ptr; | |
305 | struct msgbuf_buf_addr h2d_w_idx_hostaddr; | |
306 | struct msgbuf_buf_addr h2d_r_idx_hostaddr; | |
307 | struct msgbuf_buf_addr d2h_w_idx_hostaddr; | |
308 | struct msgbuf_buf_addr d2h_r_idx_hostaddr; | |
309 | __le16 max_flowrings; | |
310 | __le16 max_submissionrings; | |
311 | __le16 max_completionrings; | |
312 | }; | |
9e37f045 HM |
313 | |
314 | static const u32 brcmf_ring_max_item[BRCMF_NROF_COMMON_MSGRINGS] = { | |
315 | BRCMF_H2D_MSGRING_CONTROL_SUBMIT_MAX_ITEM, | |
316 | BRCMF_H2D_MSGRING_RXPOST_SUBMIT_MAX_ITEM, | |
317 | BRCMF_D2H_MSGRING_CONTROL_COMPLETE_MAX_ITEM, | |
318 | BRCMF_D2H_MSGRING_TX_COMPLETE_MAX_ITEM, | |
319 | BRCMF_D2H_MSGRING_RX_COMPLETE_MAX_ITEM | |
320 | }; | |
321 | ||
f56324ba FL |
322 | static const u32 brcmf_ring_itemsize_pre_v7[BRCMF_NROF_COMMON_MSGRINGS] = { |
323 | BRCMF_H2D_MSGRING_CONTROL_SUBMIT_ITEMSIZE, | |
324 | BRCMF_H2D_MSGRING_RXPOST_SUBMIT_ITEMSIZE, | |
325 | BRCMF_D2H_MSGRING_CONTROL_COMPLETE_ITEMSIZE, | |
326 | BRCMF_D2H_MSGRING_TX_COMPLETE_ITEMSIZE_PRE_V7, | |
327 | BRCMF_D2H_MSGRING_RX_COMPLETE_ITEMSIZE_PRE_V7 | |
328 | }; | |
329 | ||
9e37f045 HM |
330 | static const u32 brcmf_ring_itemsize[BRCMF_NROF_COMMON_MSGRINGS] = { |
331 | BRCMF_H2D_MSGRING_CONTROL_SUBMIT_ITEMSIZE, | |
332 | BRCMF_H2D_MSGRING_RXPOST_SUBMIT_ITEMSIZE, | |
333 | BRCMF_D2H_MSGRING_CONTROL_COMPLETE_ITEMSIZE, | |
334 | BRCMF_D2H_MSGRING_TX_COMPLETE_ITEMSIZE, | |
335 | BRCMF_D2H_MSGRING_RX_COMPLETE_ITEMSIZE | |
336 | }; | |
337 | ||
4684997d RM |
338 | static void brcmf_pcie_setup(struct device *dev, int ret, |
339 | struct brcmf_fw_request *fwreq); | |
340 | static struct brcmf_fw_request * | |
341 | brcmf_pcie_prepare_fw_request(struct brcmf_pciedev_info *devinfo); | |
9e37f045 | 342 | |
9e37f045 HM |
343 | static u32 |
344 | brcmf_pcie_read_reg32(struct brcmf_pciedev_info *devinfo, u32 reg_offset) | |
345 | { | |
346 | void __iomem *address = devinfo->regs + reg_offset; | |
347 | ||
348 | return (ioread32(address)); | |
349 | } | |
350 | ||
351 | ||
352 | static void | |
353 | brcmf_pcie_write_reg32(struct brcmf_pciedev_info *devinfo, u32 reg_offset, | |
354 | u32 value) | |
355 | { | |
356 | void __iomem *address = devinfo->regs + reg_offset; | |
357 | ||
358 | iowrite32(value, address); | |
359 | } | |
360 | ||
361 | ||
362 | static u8 | |
363 | brcmf_pcie_read_tcm8(struct brcmf_pciedev_info *devinfo, u32 mem_offset) | |
364 | { | |
365 | void __iomem *address = devinfo->tcm + mem_offset; | |
366 | ||
367 | return (ioread8(address)); | |
368 | } | |
369 | ||
370 | ||
371 | static u16 | |
372 | brcmf_pcie_read_tcm16(struct brcmf_pciedev_info *devinfo, u32 mem_offset) | |
373 | { | |
374 | void __iomem *address = devinfo->tcm + mem_offset; | |
375 | ||
376 | return (ioread16(address)); | |
377 | } | |
378 | ||
379 | ||
380 | static void | |
381 | brcmf_pcie_write_tcm16(struct brcmf_pciedev_info *devinfo, u32 mem_offset, | |
382 | u16 value) | |
383 | { | |
384 | void __iomem *address = devinfo->tcm + mem_offset; | |
385 | ||
386 | iowrite16(value, address); | |
387 | } | |
388 | ||
389 | ||
f3550aeb FL |
390 | static u16 |
391 | brcmf_pcie_read_idx(struct brcmf_pciedev_info *devinfo, u32 mem_offset) | |
392 | { | |
393 | u16 *address = devinfo->idxbuf + mem_offset; | |
394 | ||
395 | return (*(address)); | |
396 | } | |
397 | ||
398 | ||
399 | static void | |
400 | brcmf_pcie_write_idx(struct brcmf_pciedev_info *devinfo, u32 mem_offset, | |
401 | u16 value) | |
402 | { | |
403 | u16 *address = devinfo->idxbuf + mem_offset; | |
404 | ||
405 | *(address) = value; | |
406 | } | |
407 | ||
408 | ||
9e37f045 HM |
409 | static u32 |
410 | brcmf_pcie_read_tcm32(struct brcmf_pciedev_info *devinfo, u32 mem_offset) | |
411 | { | |
412 | void __iomem *address = devinfo->tcm + mem_offset; | |
413 | ||
414 | return (ioread32(address)); | |
415 | } | |
416 | ||
417 | ||
418 | static void | |
419 | brcmf_pcie_write_tcm32(struct brcmf_pciedev_info *devinfo, u32 mem_offset, | |
420 | u32 value) | |
421 | { | |
422 | void __iomem *address = devinfo->tcm + mem_offset; | |
423 | ||
424 | iowrite32(value, address); | |
425 | } | |
426 | ||
427 | ||
428 | static u32 | |
429 | brcmf_pcie_read_ram32(struct brcmf_pciedev_info *devinfo, u32 mem_offset) | |
430 | { | |
431 | void __iomem *addr = devinfo->tcm + devinfo->ci->rambase + mem_offset; | |
432 | ||
433 | return (ioread32(addr)); | |
434 | } | |
435 | ||
436 | ||
437 | static void | |
438 | brcmf_pcie_write_ram32(struct brcmf_pciedev_info *devinfo, u32 mem_offset, | |
439 | u32 value) | |
440 | { | |
441 | void __iomem *addr = devinfo->tcm + devinfo->ci->rambase + mem_offset; | |
442 | ||
443 | iowrite32(value, addr); | |
444 | } | |
445 | ||
446 | ||
447 | static void | |
448 | brcmf_pcie_copy_mem_todev(struct brcmf_pciedev_info *devinfo, u32 mem_offset, | |
449 | void *srcaddr, u32 len) | |
450 | { | |
451 | void __iomem *address = devinfo->tcm + mem_offset; | |
452 | __le32 *src32; | |
453 | __le16 *src16; | |
454 | u8 *src8; | |
455 | ||
456 | if (((ulong)address & 4) || ((ulong)srcaddr & 4) || (len & 4)) { | |
457 | if (((ulong)address & 2) || ((ulong)srcaddr & 2) || (len & 2)) { | |
458 | src8 = (u8 *)srcaddr; | |
459 | while (len) { | |
460 | iowrite8(*src8, address); | |
461 | address++; | |
462 | src8++; | |
463 | len--; | |
464 | } | |
465 | } else { | |
466 | len = len / 2; | |
467 | src16 = (__le16 *)srcaddr; | |
468 | while (len) { | |
469 | iowrite16(le16_to_cpu(*src16), address); | |
470 | address += 2; | |
471 | src16++; | |
472 | len--; | |
473 | } | |
474 | } | |
475 | } else { | |
476 | len = len / 4; | |
477 | src32 = (__le32 *)srcaddr; | |
478 | while (len) { | |
479 | iowrite32(le32_to_cpu(*src32), address); | |
480 | address += 4; | |
481 | src32++; | |
482 | len--; | |
483 | } | |
484 | } | |
485 | } | |
486 | ||
487 | ||
ff4445a8 AS |
488 | static void |
489 | brcmf_pcie_copy_dev_tomem(struct brcmf_pciedev_info *devinfo, u32 mem_offset, | |
490 | void *dstaddr, u32 len) | |
491 | { | |
492 | void __iomem *address = devinfo->tcm + mem_offset; | |
493 | __le32 *dst32; | |
494 | __le16 *dst16; | |
495 | u8 *dst8; | |
496 | ||
497 | if (((ulong)address & 4) || ((ulong)dstaddr & 4) || (len & 4)) { | |
498 | if (((ulong)address & 2) || ((ulong)dstaddr & 2) || (len & 2)) { | |
499 | dst8 = (u8 *)dstaddr; | |
500 | while (len) { | |
501 | *dst8 = ioread8(address); | |
502 | address++; | |
503 | dst8++; | |
504 | len--; | |
505 | } | |
506 | } else { | |
507 | len = len / 2; | |
508 | dst16 = (__le16 *)dstaddr; | |
509 | while (len) { | |
510 | *dst16 = cpu_to_le16(ioread16(address)); | |
511 | address += 2; | |
512 | dst16++; | |
513 | len--; | |
514 | } | |
515 | } | |
516 | } else { | |
517 | len = len / 4; | |
518 | dst32 = (__le32 *)dstaddr; | |
519 | while (len) { | |
520 | *dst32 = cpu_to_le32(ioread32(address)); | |
521 | address += 4; | |
522 | dst32++; | |
523 | len--; | |
524 | } | |
525 | } | |
526 | } | |
527 | ||
528 | ||
9e37f045 HM |
529 | #define WRITECC32(devinfo, reg, value) brcmf_pcie_write_reg32(devinfo, \ |
530 | CHIPCREGOFFS(reg), value) | |
531 | ||
532 | ||
533 | static void | |
534 | brcmf_pcie_select_core(struct brcmf_pciedev_info *devinfo, u16 coreid) | |
535 | { | |
536 | const struct pci_dev *pdev = devinfo->pdev; | |
8602e624 | 537 | struct brcmf_bus *bus = dev_get_drvdata(&pdev->dev); |
9e37f045 HM |
538 | struct brcmf_core *core; |
539 | u32 bar0_win; | |
540 | ||
541 | core = brcmf_chip_get_core(devinfo->ci, coreid); | |
542 | if (core) { | |
543 | bar0_win = core->base; | |
544 | pci_write_config_dword(pdev, BRCMF_PCIE_BAR0_WINDOW, bar0_win); | |
545 | if (pci_read_config_dword(pdev, BRCMF_PCIE_BAR0_WINDOW, | |
546 | &bar0_win) == 0) { | |
547 | if (bar0_win != core->base) { | |
548 | bar0_win = core->base; | |
549 | pci_write_config_dword(pdev, | |
550 | BRCMF_PCIE_BAR0_WINDOW, | |
551 | bar0_win); | |
552 | } | |
553 | } | |
554 | } else { | |
8602e624 | 555 | brcmf_err(bus, "Unsupported core selected %x\n", coreid); |
9e37f045 HM |
556 | } |
557 | } | |
558 | ||
559 | ||
bd4f82e3 | 560 | static void brcmf_pcie_reset_device(struct brcmf_pciedev_info *devinfo) |
9e37f045 | 561 | { |
07fe2e38 | 562 | struct brcmf_core *core; |
bd4f82e3 HM |
563 | u16 cfg_offset[] = { BRCMF_PCIE_CFGREG_STATUS_CMD, |
564 | BRCMF_PCIE_CFGREG_PM_CSR, | |
565 | BRCMF_PCIE_CFGREG_MSI_CAP, | |
566 | BRCMF_PCIE_CFGREG_MSI_ADDR_L, | |
567 | BRCMF_PCIE_CFGREG_MSI_ADDR_H, | |
568 | BRCMF_PCIE_CFGREG_MSI_DATA, | |
569 | BRCMF_PCIE_CFGREG_LINK_STATUS_CTRL2, | |
570 | BRCMF_PCIE_CFGREG_RBAR_CTRL, | |
571 | BRCMF_PCIE_CFGREG_PML1_SUB_CTRL1, | |
572 | BRCMF_PCIE_CFGREG_REG_BAR2_CONFIG, | |
573 | BRCMF_PCIE_CFGREG_REG_BAR3_CONFIG }; | |
9e37f045 HM |
574 | u32 i; |
575 | u32 val; | |
bd4f82e3 | 576 | u32 lsc; |
9e37f045 HM |
577 | |
578 | if (!devinfo->ci) | |
579 | return; | |
580 | ||
07fe2e38 | 581 | /* Disable ASPM */ |
bd4f82e3 | 582 | brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2); |
07fe2e38 HM |
583 | pci_read_config_dword(devinfo->pdev, BRCMF_PCIE_REG_LINK_STATUS_CTRL, |
584 | &lsc); | |
bd4f82e3 | 585 | val = lsc & (~BRCMF_PCIE_LINK_STATUS_CTRL_ASPM_ENAB); |
07fe2e38 HM |
586 | pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_LINK_STATUS_CTRL, |
587 | val); | |
9e37f045 | 588 | |
07fe2e38 | 589 | /* Watchdog reset */ |
bd4f82e3 HM |
590 | brcmf_pcie_select_core(devinfo, BCMA_CORE_CHIPCOMMON); |
591 | WRITECC32(devinfo, watchdog, 4); | |
9e37f045 HM |
592 | msleep(100); |
593 | ||
07fe2e38 | 594 | /* Restore ASPM */ |
bd4f82e3 | 595 | brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2); |
07fe2e38 HM |
596 | pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_LINK_STATUS_CTRL, |
597 | lsc); | |
598 | ||
599 | core = brcmf_chip_get_core(devinfo->ci, BCMA_CORE_PCIE2); | |
600 | if (core->rev <= 13) { | |
601 | for (i = 0; i < ARRAY_SIZE(cfg_offset); i++) { | |
602 | brcmf_pcie_write_reg32(devinfo, | |
603 | BRCMF_PCIE_PCIE2REG_CONFIGADDR, | |
604 | cfg_offset[i]); | |
605 | val = brcmf_pcie_read_reg32(devinfo, | |
606 | BRCMF_PCIE_PCIE2REG_CONFIGDATA); | |
607 | brcmf_dbg(PCIE, "config offset 0x%04x, value 0x%04x\n", | |
608 | cfg_offset[i], val); | |
609 | brcmf_pcie_write_reg32(devinfo, | |
610 | BRCMF_PCIE_PCIE2REG_CONFIGDATA, | |
611 | val); | |
612 | } | |
9e37f045 HM |
613 | } |
614 | } | |
615 | ||
616 | ||
617 | static void brcmf_pcie_attach(struct brcmf_pciedev_info *devinfo) | |
618 | { | |
619 | u32 config; | |
620 | ||
9e37f045 HM |
621 | /* BAR1 window may not be sized properly */ |
622 | brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2); | |
623 | brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGADDR, 0x4e0); | |
624 | config = brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGDATA); | |
625 | brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGDATA, config); | |
626 | ||
627 | device_wakeup_enable(&devinfo->pdev->dev); | |
628 | } | |
629 | ||
630 | ||
631 | static int brcmf_pcie_enter_download_state(struct brcmf_pciedev_info *devinfo) | |
632 | { | |
9e37f045 HM |
633 | if (devinfo->ci->chip == BRCM_CC_43602_CHIP_ID) { |
634 | brcmf_pcie_select_core(devinfo, BCMA_CORE_ARM_CR4); | |
635 | brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_ARMCR4REG_BANKIDX, | |
636 | 5); | |
637 | brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_ARMCR4REG_BANKPDA, | |
638 | 0); | |
639 | brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_ARMCR4REG_BANKIDX, | |
640 | 7); | |
641 | brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_ARMCR4REG_BANKPDA, | |
642 | 0); | |
643 | } | |
644 | return 0; | |
645 | } | |
646 | ||
647 | ||
648 | static int brcmf_pcie_exit_download_state(struct brcmf_pciedev_info *devinfo, | |
649 | u32 resetintr) | |
650 | { | |
651 | struct brcmf_core *core; | |
652 | ||
653 | if (devinfo->ci->chip == BRCM_CC_43602_CHIP_ID) { | |
654 | core = brcmf_chip_get_core(devinfo->ci, BCMA_CORE_INTERNAL_MEM); | |
655 | brcmf_chip_resetcore(core, 0, 0, 0); | |
656 | } | |
657 | ||
7941c212 DC |
658 | if (!brcmf_chip_set_active(devinfo->ci, resetintr)) |
659 | return -EINVAL; | |
660 | return 0; | |
9e37f045 HM |
661 | } |
662 | ||
663 | ||
4eb3af7c | 664 | static int |
9e37f045 HM |
665 | brcmf_pcie_send_mb_data(struct brcmf_pciedev_info *devinfo, u32 htod_mb_data) |
666 | { | |
667 | struct brcmf_pcie_shared_info *shared; | |
9ef77fbe | 668 | struct brcmf_core *core; |
9e37f045 HM |
669 | u32 addr; |
670 | u32 cur_htod_mb_data; | |
671 | u32 i; | |
672 | ||
673 | shared = &devinfo->shared; | |
674 | addr = shared->htod_mb_data_addr; | |
675 | cur_htod_mb_data = brcmf_pcie_read_tcm32(devinfo, addr); | |
676 | ||
677 | if (cur_htod_mb_data != 0) | |
678 | brcmf_dbg(PCIE, "MB transaction is already pending 0x%04x\n", | |
679 | cur_htod_mb_data); | |
680 | ||
681 | i = 0; | |
682 | while (cur_htod_mb_data != 0) { | |
683 | msleep(10); | |
684 | i++; | |
685 | if (i > 100) | |
4eb3af7c | 686 | return -EIO; |
9e37f045 HM |
687 | cur_htod_mb_data = brcmf_pcie_read_tcm32(devinfo, addr); |
688 | } | |
689 | ||
690 | brcmf_pcie_write_tcm32(devinfo, addr, htod_mb_data); | |
691 | pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_SBMBX, 1); | |
9ef77fbe WF |
692 | |
693 | /* Send mailbox interrupt twice as a hardware workaround */ | |
694 | core = brcmf_chip_get_core(devinfo->ci, BCMA_CORE_PCIE2); | |
695 | if (core->rev <= 13) | |
696 | pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_SBMBX, 1); | |
4eb3af7c HM |
697 | |
698 | return 0; | |
9e37f045 HM |
699 | } |
700 | ||
701 | ||
702 | static void brcmf_pcie_handle_mb_data(struct brcmf_pciedev_info *devinfo) | |
703 | { | |
704 | struct brcmf_pcie_shared_info *shared; | |
705 | u32 addr; | |
706 | u32 dtoh_mb_data; | |
707 | ||
708 | shared = &devinfo->shared; | |
709 | addr = shared->dtoh_mb_data_addr; | |
710 | dtoh_mb_data = brcmf_pcie_read_tcm32(devinfo, addr); | |
711 | ||
712 | if (!dtoh_mb_data) | |
713 | return; | |
714 | ||
715 | brcmf_pcie_write_tcm32(devinfo, addr, 0); | |
716 | ||
717 | brcmf_dbg(PCIE, "D2H_MB_DATA: 0x%04x\n", dtoh_mb_data); | |
718 | if (dtoh_mb_data & BRCMF_D2H_DEV_DS_ENTER_REQ) { | |
719 | brcmf_dbg(PCIE, "D2H_MB_DATA: DEEP SLEEP REQ\n"); | |
720 | brcmf_pcie_send_mb_data(devinfo, BRCMF_H2D_HOST_DS_ACK); | |
721 | brcmf_dbg(PCIE, "D2H_MB_DATA: sent DEEP SLEEP ACK\n"); | |
722 | } | |
723 | if (dtoh_mb_data & BRCMF_D2H_DEV_DS_EXIT_NOTE) | |
724 | brcmf_dbg(PCIE, "D2H_MB_DATA: DEEP SLEEP EXIT\n"); | |
ebcc2f51 | 725 | if (dtoh_mb_data & BRCMF_D2H_DEV_D3_ACK) { |
9e37f045 | 726 | brcmf_dbg(PCIE, "D2H_MB_DATA: D3 ACK\n"); |
107b8713 HW |
727 | devinfo->mbdata_completed = true; |
728 | wake_up(&devinfo->mbdata_resp_wait); | |
ebcc2f51 | 729 | } |
8a3ab2f3 FL |
730 | if (dtoh_mb_data & BRCMF_D2H_DEV_FWHALT) { |
731 | brcmf_dbg(PCIE, "D2H_MB_DATA: FW HALT\n"); | |
a2ec87dd | 732 | brcmf_fw_crashed(&devinfo->pdev->dev); |
8a3ab2f3 | 733 | } |
9e37f045 HM |
734 | } |
735 | ||
736 | ||
737 | static void brcmf_pcie_bus_console_init(struct brcmf_pciedev_info *devinfo) | |
738 | { | |
739 | struct brcmf_pcie_shared_info *shared; | |
740 | struct brcmf_pcie_console *console; | |
741 | u32 addr; | |
742 | ||
743 | shared = &devinfo->shared; | |
744 | console = &shared->console; | |
745 | addr = shared->tcm_base_address + BRCMF_SHARED_CONSOLE_ADDR_OFFSET; | |
746 | console->base_addr = brcmf_pcie_read_tcm32(devinfo, addr); | |
747 | ||
748 | addr = console->base_addr + BRCMF_CONSOLE_BUFADDR_OFFSET; | |
749 | console->buf_addr = brcmf_pcie_read_tcm32(devinfo, addr); | |
750 | addr = console->base_addr + BRCMF_CONSOLE_BUFSIZE_OFFSET; | |
751 | console->bufsize = brcmf_pcie_read_tcm32(devinfo, addr); | |
752 | ||
9d6c1dc4 | 753 | brcmf_dbg(FWCON, "Console: base %x, buf %x, size %d\n", |
9e37f045 HM |
754 | console->base_addr, console->buf_addr, console->bufsize); |
755 | } | |
756 | ||
47dd82e3 RM |
757 | /** |
758 | * brcmf_pcie_bus_console_read - reads firmware messages | |
759 | * | |
760 | * @error: specifies if error has occurred (prints messages unconditionally) | |
761 | */ | |
762 | static void brcmf_pcie_bus_console_read(struct brcmf_pciedev_info *devinfo, | |
763 | bool error) | |
9e37f045 | 764 | { |
47dd82e3 RM |
765 | struct pci_dev *pdev = devinfo->pdev; |
766 | struct brcmf_bus *bus = dev_get_drvdata(&pdev->dev); | |
9e37f045 HM |
767 | struct brcmf_pcie_console *console; |
768 | u32 addr; | |
769 | u8 ch; | |
770 | u32 newidx; | |
771 | ||
47dd82e3 | 772 | if (!error && !BRCMF_FWCON_ON()) |
9d6c1dc4 AS |
773 | return; |
774 | ||
9e37f045 HM |
775 | console = &devinfo->shared.console; |
776 | addr = console->base_addr + BRCMF_CONSOLE_WRITEIDX_OFFSET; | |
777 | newidx = brcmf_pcie_read_tcm32(devinfo, addr); | |
778 | while (newidx != console->read_idx) { | |
779 | addr = console->buf_addr + console->read_idx; | |
780 | ch = brcmf_pcie_read_tcm8(devinfo, addr); | |
781 | console->read_idx++; | |
782 | if (console->read_idx == console->bufsize) | |
783 | console->read_idx = 0; | |
784 | if (ch == '\r') | |
785 | continue; | |
786 | console->log_str[console->log_idx] = ch; | |
787 | console->log_idx++; | |
788 | if ((ch != '\n') && | |
789 | (console->log_idx == (sizeof(console->log_str) - 2))) { | |
790 | ch = '\n'; | |
791 | console->log_str[console->log_idx] = ch; | |
792 | console->log_idx++; | |
793 | } | |
9e37f045 HM |
794 | if (ch == '\n') { |
795 | console->log_str[console->log_idx] = 0; | |
47dd82e3 | 796 | if (error) |
e3b1d879 RM |
797 | __brcmf_err(bus, __func__, "CONSOLE: %s", |
798 | console->log_str); | |
47dd82e3 RM |
799 | else |
800 | pr_debug("CONSOLE: %s", console->log_str); | |
9e37f045 HM |
801 | console->log_idx = 0; |
802 | } | |
803 | } | |
804 | } | |
805 | ||
806 | ||
9e37f045 HM |
807 | static void brcmf_pcie_intr_disable(struct brcmf_pciedev_info *devinfo) |
808 | { | |
d457a44f | 809 | brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXMASK, 0); |
9e37f045 HM |
810 | } |
811 | ||
812 | ||
813 | static void brcmf_pcie_intr_enable(struct brcmf_pciedev_info *devinfo) | |
814 | { | |
d457a44f HM |
815 | brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXMASK, |
816 | BRCMF_PCIE_MB_INT_D2H_DB | | |
817 | BRCMF_PCIE_MB_INT_FN0_0 | | |
818 | BRCMF_PCIE_MB_INT_FN0_1); | |
9e37f045 HM |
819 | } |
820 | ||
84ad327d FL |
821 | static void brcmf_pcie_hostready(struct brcmf_pciedev_info *devinfo) |
822 | { | |
823 | if (devinfo->shared.flags & BRCMF_PCIE_SHARED_HOSTRDY_DB1) | |
824 | brcmf_pcie_write_reg32(devinfo, | |
825 | BRCMF_PCIE_PCIE2REG_H2D_MAILBOX_1, 1); | |
826 | } | |
9e37f045 | 827 | |
d457a44f | 828 | static irqreturn_t brcmf_pcie_quick_check_isr(int irq, void *arg) |
9e37f045 HM |
829 | { |
830 | struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)arg; | |
831 | ||
832 | if (brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT)) { | |
833 | brcmf_pcie_intr_disable(devinfo); | |
834 | brcmf_dbg(PCIE, "Enter\n"); | |
835 | return IRQ_WAKE_THREAD; | |
836 | } | |
837 | return IRQ_NONE; | |
838 | } | |
839 | ||
840 | ||
d457a44f | 841 | static irqreturn_t brcmf_pcie_isr_thread(int irq, void *arg) |
9e37f045 HM |
842 | { |
843 | struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)arg; | |
844 | u32 status; | |
845 | ||
846 | devinfo->in_irq = true; | |
847 | status = brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT); | |
848 | brcmf_dbg(PCIE, "Enter %x\n", status); | |
849 | if (status) { | |
850 | brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT, | |
851 | status); | |
852 | if (status & (BRCMF_PCIE_MB_INT_FN0_0 | | |
853 | BRCMF_PCIE_MB_INT_FN0_1)) | |
854 | brcmf_pcie_handle_mb_data(devinfo); | |
855 | if (status & BRCMF_PCIE_MB_INT_D2H_DB) { | |
856 | if (devinfo->state == BRCMFMAC_PCIE_STATE_UP) | |
857 | brcmf_proto_msgbuf_rx_trigger( | |
858 | &devinfo->pdev->dev); | |
859 | } | |
860 | } | |
47dd82e3 | 861 | brcmf_pcie_bus_console_read(devinfo, false); |
9e37f045 HM |
862 | if (devinfo->state == BRCMFMAC_PCIE_STATE_UP) |
863 | brcmf_pcie_intr_enable(devinfo); | |
864 | devinfo->in_irq = false; | |
865 | return IRQ_HANDLED; | |
866 | } | |
867 | ||
868 | ||
869 | static int brcmf_pcie_request_irq(struct brcmf_pciedev_info *devinfo) | |
870 | { | |
8602e624 RM |
871 | struct pci_dev *pdev = devinfo->pdev; |
872 | struct brcmf_bus *bus = dev_get_drvdata(&pdev->dev); | |
9e37f045 HM |
873 | |
874 | brcmf_pcie_intr_disable(devinfo); | |
875 | ||
876 | brcmf_dbg(PCIE, "Enter\n"); | |
d457a44f | 877 | |
e9efa340 | 878 | pci_enable_msi(pdev); |
d457a44f HM |
879 | if (request_threaded_irq(pdev->irq, brcmf_pcie_quick_check_isr, |
880 | brcmf_pcie_isr_thread, IRQF_SHARED, | |
881 | "brcmf_pcie_intr", devinfo)) { | |
882 | pci_disable_msi(pdev); | |
8602e624 | 883 | brcmf_err(bus, "Failed to request IRQ %d\n", pdev->irq); |
d457a44f | 884 | return -EIO; |
9e37f045 | 885 | } |
9e37f045 HM |
886 | devinfo->irq_allocated = true; |
887 | return 0; | |
888 | } | |
889 | ||
890 | ||
891 | static void brcmf_pcie_release_irq(struct brcmf_pciedev_info *devinfo) | |
892 | { | |
8602e624 RM |
893 | struct pci_dev *pdev = devinfo->pdev; |
894 | struct brcmf_bus *bus = dev_get_drvdata(&pdev->dev); | |
9e37f045 HM |
895 | u32 status; |
896 | u32 count; | |
897 | ||
898 | if (!devinfo->irq_allocated) | |
899 | return; | |
900 | ||
9e37f045 | 901 | brcmf_pcie_intr_disable(devinfo); |
9e37f045 | 902 | free_irq(pdev->irq, devinfo); |
e9efa340 | 903 | pci_disable_msi(pdev); |
9e37f045 HM |
904 | |
905 | msleep(50); | |
906 | count = 0; | |
907 | while ((devinfo->in_irq) && (count < 20)) { | |
908 | msleep(50); | |
909 | count++; | |
910 | } | |
911 | if (devinfo->in_irq) | |
8602e624 | 912 | brcmf_err(bus, "Still in IRQ (processing) !!!\n"); |
9e37f045 | 913 | |
d457a44f HM |
914 | status = brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT); |
915 | brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT, status); | |
916 | ||
9e37f045 HM |
917 | devinfo->irq_allocated = false; |
918 | } | |
919 | ||
920 | ||
921 | static int brcmf_pcie_ring_mb_write_rptr(void *ctx) | |
922 | { | |
923 | struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx; | |
924 | struct brcmf_pciedev_info *devinfo = ring->devinfo; | |
925 | struct brcmf_commonring *commonring = &ring->commonring; | |
926 | ||
927 | if (devinfo->state != BRCMFMAC_PCIE_STATE_UP) | |
928 | return -EIO; | |
929 | ||
930 | brcmf_dbg(PCIE, "W r_ptr %d (%d), ring %d\n", commonring->r_ptr, | |
931 | commonring->w_ptr, ring->id); | |
932 | ||
f3550aeb | 933 | devinfo->write_ptr(devinfo, ring->r_idx_addr, commonring->r_ptr); |
9e37f045 HM |
934 | |
935 | return 0; | |
936 | } | |
937 | ||
938 | ||
939 | static int brcmf_pcie_ring_mb_write_wptr(void *ctx) | |
940 | { | |
941 | struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx; | |
942 | struct brcmf_pciedev_info *devinfo = ring->devinfo; | |
943 | struct brcmf_commonring *commonring = &ring->commonring; | |
944 | ||
945 | if (devinfo->state != BRCMFMAC_PCIE_STATE_UP) | |
946 | return -EIO; | |
947 | ||
948 | brcmf_dbg(PCIE, "W w_ptr %d (%d), ring %d\n", commonring->w_ptr, | |
949 | commonring->r_ptr, ring->id); | |
950 | ||
f3550aeb | 951 | devinfo->write_ptr(devinfo, ring->w_idx_addr, commonring->w_ptr); |
9e37f045 HM |
952 | |
953 | return 0; | |
954 | } | |
955 | ||
956 | ||
957 | static int brcmf_pcie_ring_mb_ring_bell(void *ctx) | |
958 | { | |
959 | struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx; | |
960 | struct brcmf_pciedev_info *devinfo = ring->devinfo; | |
961 | ||
962 | if (devinfo->state != BRCMFMAC_PCIE_STATE_UP) | |
963 | return -EIO; | |
964 | ||
d457a44f HM |
965 | brcmf_dbg(PCIE, "RING !\n"); |
966 | /* Any arbitrary value will do, lets use 1 */ | |
84ad327d | 967 | brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_H2D_MAILBOX_0, 1); |
9e37f045 HM |
968 | |
969 | return 0; | |
970 | } | |
971 | ||
972 | ||
973 | static int brcmf_pcie_ring_mb_update_rptr(void *ctx) | |
974 | { | |
975 | struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx; | |
976 | struct brcmf_pciedev_info *devinfo = ring->devinfo; | |
977 | struct brcmf_commonring *commonring = &ring->commonring; | |
978 | ||
979 | if (devinfo->state != BRCMFMAC_PCIE_STATE_UP) | |
980 | return -EIO; | |
981 | ||
f3550aeb | 982 | commonring->r_ptr = devinfo->read_ptr(devinfo, ring->r_idx_addr); |
9e37f045 HM |
983 | |
984 | brcmf_dbg(PCIE, "R r_ptr %d (%d), ring %d\n", commonring->r_ptr, | |
985 | commonring->w_ptr, ring->id); | |
986 | ||
987 | return 0; | |
988 | } | |
989 | ||
990 | ||
991 | static int brcmf_pcie_ring_mb_update_wptr(void *ctx) | |
992 | { | |
993 | struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx; | |
994 | struct brcmf_pciedev_info *devinfo = ring->devinfo; | |
995 | struct brcmf_commonring *commonring = &ring->commonring; | |
996 | ||
997 | if (devinfo->state != BRCMFMAC_PCIE_STATE_UP) | |
998 | return -EIO; | |
999 | ||
f3550aeb | 1000 | commonring->w_ptr = devinfo->read_ptr(devinfo, ring->w_idx_addr); |
9e37f045 HM |
1001 | |
1002 | brcmf_dbg(PCIE, "R w_ptr %d (%d), ring %d\n", commonring->w_ptr, | |
1003 | commonring->r_ptr, ring->id); | |
1004 | ||
1005 | return 0; | |
1006 | } | |
1007 | ||
1008 | ||
1009 | static void * | |
1010 | brcmf_pcie_init_dmabuffer_for_device(struct brcmf_pciedev_info *devinfo, | |
1011 | u32 size, u32 tcm_dma_phys_addr, | |
1012 | dma_addr_t *dma_handle) | |
1013 | { | |
1014 | void *ring; | |
83297aaa | 1015 | u64 address; |
9e37f045 HM |
1016 | |
1017 | ring = dma_alloc_coherent(&devinfo->pdev->dev, size, dma_handle, | |
1018 | GFP_KERNEL); | |
1019 | if (!ring) | |
1020 | return NULL; | |
1021 | ||
83297aaa | 1022 | address = (u64)*dma_handle; |
9e37f045 HM |
1023 | brcmf_pcie_write_tcm32(devinfo, tcm_dma_phys_addr, |
1024 | address & 0xffffffff); | |
1025 | brcmf_pcie_write_tcm32(devinfo, tcm_dma_phys_addr + 4, address >> 32); | |
1026 | ||
9e37f045 HM |
1027 | return (ring); |
1028 | } | |
1029 | ||
1030 | ||
1031 | static struct brcmf_pcie_ringbuf * | |
1032 | brcmf_pcie_alloc_dma_and_ring(struct brcmf_pciedev_info *devinfo, u32 ring_id, | |
1033 | u32 tcm_ring_phys_addr) | |
1034 | { | |
1035 | void *dma_buf; | |
1036 | dma_addr_t dma_handle; | |
1037 | struct brcmf_pcie_ringbuf *ring; | |
1038 | u32 size; | |
1039 | u32 addr; | |
f56324ba FL |
1040 | const u32 *ring_itemsize_array; |
1041 | ||
1042 | if (devinfo->shared.version < BRCMF_PCIE_SHARED_VERSION_7) | |
1043 | ring_itemsize_array = brcmf_ring_itemsize_pre_v7; | |
1044 | else | |
1045 | ring_itemsize_array = brcmf_ring_itemsize; | |
9e37f045 | 1046 | |
f56324ba | 1047 | size = brcmf_ring_max_item[ring_id] * ring_itemsize_array[ring_id]; |
9e37f045 HM |
1048 | dma_buf = brcmf_pcie_init_dmabuffer_for_device(devinfo, size, |
1049 | tcm_ring_phys_addr + BRCMF_RING_MEM_BASE_ADDR_OFFSET, | |
1050 | &dma_handle); | |
1051 | if (!dma_buf) | |
1052 | return NULL; | |
1053 | ||
1054 | addr = tcm_ring_phys_addr + BRCMF_RING_MAX_ITEM_OFFSET; | |
1055 | brcmf_pcie_write_tcm16(devinfo, addr, brcmf_ring_max_item[ring_id]); | |
1056 | addr = tcm_ring_phys_addr + BRCMF_RING_LEN_ITEMS_OFFSET; | |
f56324ba | 1057 | brcmf_pcie_write_tcm16(devinfo, addr, ring_itemsize_array[ring_id]); |
9e37f045 HM |
1058 | |
1059 | ring = kzalloc(sizeof(*ring), GFP_KERNEL); | |
1060 | if (!ring) { | |
1061 | dma_free_coherent(&devinfo->pdev->dev, size, dma_buf, | |
1062 | dma_handle); | |
1063 | return NULL; | |
1064 | } | |
1065 | brcmf_commonring_config(&ring->commonring, brcmf_ring_max_item[ring_id], | |
f56324ba | 1066 | ring_itemsize_array[ring_id], dma_buf); |
9e37f045 HM |
1067 | ring->dma_handle = dma_handle; |
1068 | ring->devinfo = devinfo; | |
1069 | brcmf_commonring_register_cb(&ring->commonring, | |
1070 | brcmf_pcie_ring_mb_ring_bell, | |
1071 | brcmf_pcie_ring_mb_update_rptr, | |
1072 | brcmf_pcie_ring_mb_update_wptr, | |
1073 | brcmf_pcie_ring_mb_write_rptr, | |
1074 | brcmf_pcie_ring_mb_write_wptr, ring); | |
1075 | ||
1076 | return (ring); | |
1077 | } | |
1078 | ||
1079 | ||
1080 | static void brcmf_pcie_release_ringbuffer(struct device *dev, | |
1081 | struct brcmf_pcie_ringbuf *ring) | |
1082 | { | |
1083 | void *dma_buf; | |
1084 | u32 size; | |
1085 | ||
1086 | if (!ring) | |
1087 | return; | |
1088 | ||
1089 | dma_buf = ring->commonring.buf_addr; | |
1090 | if (dma_buf) { | |
1091 | size = ring->commonring.depth * ring->commonring.item_len; | |
1092 | dma_free_coherent(dev, size, dma_buf, ring->dma_handle); | |
1093 | } | |
1094 | kfree(ring); | |
1095 | } | |
1096 | ||
1097 | ||
1098 | static void brcmf_pcie_release_ringbuffers(struct brcmf_pciedev_info *devinfo) | |
1099 | { | |
1100 | u32 i; | |
1101 | ||
1102 | for (i = 0; i < BRCMF_NROF_COMMON_MSGRINGS; i++) { | |
1103 | brcmf_pcie_release_ringbuffer(&devinfo->pdev->dev, | |
1104 | devinfo->shared.commonrings[i]); | |
1105 | devinfo->shared.commonrings[i] = NULL; | |
1106 | } | |
1107 | kfree(devinfo->shared.flowrings); | |
1108 | devinfo->shared.flowrings = NULL; | |
f3550aeb FL |
1109 | if (devinfo->idxbuf) { |
1110 | dma_free_coherent(&devinfo->pdev->dev, | |
1111 | devinfo->idxbuf_sz, | |
1112 | devinfo->idxbuf, | |
1113 | devinfo->idxbuf_dmahandle); | |
1114 | devinfo->idxbuf = NULL; | |
1115 | } | |
9e37f045 HM |
1116 | } |
1117 | ||
1118 | ||
1119 | static int brcmf_pcie_init_ringbuffers(struct brcmf_pciedev_info *devinfo) | |
1120 | { | |
8602e624 | 1121 | struct brcmf_bus *bus = dev_get_drvdata(&devinfo->pdev->dev); |
9e37f045 HM |
1122 | struct brcmf_pcie_ringbuf *ring; |
1123 | struct brcmf_pcie_ringbuf *rings; | |
9e37f045 HM |
1124 | u32 d2h_w_idx_ptr; |
1125 | u32 d2h_r_idx_ptr; | |
1126 | u32 h2d_w_idx_ptr; | |
1127 | u32 h2d_r_idx_ptr; | |
9e37f045 HM |
1128 | u32 ring_mem_ptr; |
1129 | u32 i; | |
f3550aeb FL |
1130 | u64 address; |
1131 | u32 bufsz; | |
f3550aeb | 1132 | u8 idx_offset; |
be4b092c FL |
1133 | struct brcmf_pcie_dhi_ringinfo ringinfo; |
1134 | u16 max_flowrings; | |
1135 | u16 max_submissionrings; | |
1136 | u16 max_completionrings; | |
1137 | ||
1138 | memcpy_fromio(&ringinfo, devinfo->tcm + devinfo->shared.ring_info_addr, | |
1139 | sizeof(ringinfo)); | |
1140 | if (devinfo->shared.version >= 6) { | |
1141 | max_submissionrings = le16_to_cpu(ringinfo.max_submissionrings); | |
1142 | max_flowrings = le16_to_cpu(ringinfo.max_flowrings); | |
1143 | max_completionrings = le16_to_cpu(ringinfo.max_completionrings); | |
1144 | } else { | |
1145 | max_submissionrings = le16_to_cpu(ringinfo.max_flowrings); | |
1146 | max_flowrings = max_submissionrings - | |
1147 | BRCMF_NROF_H2D_COMMON_MSGRINGS; | |
1148 | max_completionrings = BRCMF_NROF_D2H_COMMON_MSGRINGS; | |
1149 | } | |
f3550aeb FL |
1150 | |
1151 | if (devinfo->dma_idx_sz != 0) { | |
be4b092c | 1152 | bufsz = (max_submissionrings + max_completionrings) * |
f3550aeb FL |
1153 | devinfo->dma_idx_sz * 2; |
1154 | devinfo->idxbuf = dma_alloc_coherent(&devinfo->pdev->dev, bufsz, | |
1155 | &devinfo->idxbuf_dmahandle, | |
1156 | GFP_KERNEL); | |
1157 | if (!devinfo->idxbuf) | |
1158 | devinfo->dma_idx_sz = 0; | |
1159 | } | |
9e37f045 | 1160 | |
f3550aeb | 1161 | if (devinfo->dma_idx_sz == 0) { |
be4b092c FL |
1162 | d2h_w_idx_ptr = le32_to_cpu(ringinfo.d2h_w_idx_ptr); |
1163 | d2h_r_idx_ptr = le32_to_cpu(ringinfo.d2h_r_idx_ptr); | |
1164 | h2d_w_idx_ptr = le32_to_cpu(ringinfo.h2d_w_idx_ptr); | |
1165 | h2d_r_idx_ptr = le32_to_cpu(ringinfo.h2d_r_idx_ptr); | |
f3550aeb FL |
1166 | idx_offset = sizeof(u32); |
1167 | devinfo->write_ptr = brcmf_pcie_write_tcm16; | |
1168 | devinfo->read_ptr = brcmf_pcie_read_tcm16; | |
1169 | brcmf_dbg(PCIE, "Using TCM indices\n"); | |
1170 | } else { | |
1171 | memset(devinfo->idxbuf, 0, bufsz); | |
1172 | devinfo->idxbuf_sz = bufsz; | |
1173 | idx_offset = devinfo->dma_idx_sz; | |
1174 | devinfo->write_ptr = brcmf_pcie_write_idx; | |
1175 | devinfo->read_ptr = brcmf_pcie_read_idx; | |
1176 | ||
1177 | h2d_w_idx_ptr = 0; | |
f3550aeb | 1178 | address = (u64)devinfo->idxbuf_dmahandle; |
be4b092c FL |
1179 | ringinfo.h2d_w_idx_hostaddr.low_addr = |
1180 | cpu_to_le32(address & 0xffffffff); | |
1181 | ringinfo.h2d_w_idx_hostaddr.high_addr = | |
1182 | cpu_to_le32(address >> 32); | |
1183 | ||
1184 | h2d_r_idx_ptr = h2d_w_idx_ptr + | |
1185 | max_submissionrings * idx_offset; | |
1186 | address += max_submissionrings * idx_offset; | |
1187 | ringinfo.h2d_r_idx_hostaddr.low_addr = | |
1188 | cpu_to_le32(address & 0xffffffff); | |
1189 | ringinfo.h2d_r_idx_hostaddr.high_addr = | |
1190 | cpu_to_le32(address >> 32); | |
1191 | ||
1192 | d2h_w_idx_ptr = h2d_r_idx_ptr + | |
1193 | max_submissionrings * idx_offset; | |
1194 | address += max_submissionrings * idx_offset; | |
1195 | ringinfo.d2h_w_idx_hostaddr.low_addr = | |
1196 | cpu_to_le32(address & 0xffffffff); | |
1197 | ringinfo.d2h_w_idx_hostaddr.high_addr = | |
1198 | cpu_to_le32(address >> 32); | |
f3550aeb FL |
1199 | |
1200 | d2h_r_idx_ptr = d2h_w_idx_ptr + | |
be4b092c FL |
1201 | max_completionrings * idx_offset; |
1202 | address += max_completionrings * idx_offset; | |
1203 | ringinfo.d2h_r_idx_hostaddr.low_addr = | |
1204 | cpu_to_le32(address & 0xffffffff); | |
1205 | ringinfo.d2h_r_idx_hostaddr.high_addr = | |
1206 | cpu_to_le32(address >> 32); | |
1207 | ||
1208 | memcpy_toio(devinfo->tcm + devinfo->shared.ring_info_addr, | |
1209 | &ringinfo, sizeof(ringinfo)); | |
f3550aeb FL |
1210 | brcmf_dbg(PCIE, "Using host memory indices\n"); |
1211 | } | |
9e37f045 | 1212 | |
be4b092c | 1213 | ring_mem_ptr = le32_to_cpu(ringinfo.ringmem); |
9e37f045 HM |
1214 | |
1215 | for (i = 0; i < BRCMF_NROF_H2D_COMMON_MSGRINGS; i++) { | |
1216 | ring = brcmf_pcie_alloc_dma_and_ring(devinfo, i, ring_mem_ptr); | |
1217 | if (!ring) | |
1218 | goto fail; | |
1219 | ring->w_idx_addr = h2d_w_idx_ptr; | |
1220 | ring->r_idx_addr = h2d_r_idx_ptr; | |
1221 | ring->id = i; | |
1222 | devinfo->shared.commonrings[i] = ring; | |
1223 | ||
f3550aeb FL |
1224 | h2d_w_idx_ptr += idx_offset; |
1225 | h2d_r_idx_ptr += idx_offset; | |
9e37f045 HM |
1226 | ring_mem_ptr += BRCMF_RING_MEM_SZ; |
1227 | } | |
1228 | ||
1229 | for (i = BRCMF_NROF_H2D_COMMON_MSGRINGS; | |
1230 | i < BRCMF_NROF_COMMON_MSGRINGS; i++) { | |
1231 | ring = brcmf_pcie_alloc_dma_and_ring(devinfo, i, ring_mem_ptr); | |
1232 | if (!ring) | |
1233 | goto fail; | |
1234 | ring->w_idx_addr = d2h_w_idx_ptr; | |
1235 | ring->r_idx_addr = d2h_r_idx_ptr; | |
1236 | ring->id = i; | |
1237 | devinfo->shared.commonrings[i] = ring; | |
1238 | ||
f3550aeb FL |
1239 | d2h_w_idx_ptr += idx_offset; |
1240 | d2h_r_idx_ptr += idx_offset; | |
9e37f045 HM |
1241 | ring_mem_ptr += BRCMF_RING_MEM_SZ; |
1242 | } | |
1243 | ||
be4b092c FL |
1244 | devinfo->shared.max_flowrings = max_flowrings; |
1245 | devinfo->shared.max_submissionrings = max_submissionrings; | |
1246 | devinfo->shared.max_completionrings = max_completionrings; | |
1247 | rings = kcalloc(max_flowrings, sizeof(*ring), GFP_KERNEL); | |
9e37f045 HM |
1248 | if (!rings) |
1249 | goto fail; | |
1250 | ||
be4b092c | 1251 | brcmf_dbg(PCIE, "Nr of flowrings is %d\n", max_flowrings); |
9e37f045 | 1252 | |
be4b092c | 1253 | for (i = 0; i < max_flowrings; i++) { |
9e37f045 HM |
1254 | ring = &rings[i]; |
1255 | ring->devinfo = devinfo; | |
be4b092c | 1256 | ring->id = i + BRCMF_H2D_MSGRING_FLOWRING_IDSTART; |
9e37f045 HM |
1257 | brcmf_commonring_register_cb(&ring->commonring, |
1258 | brcmf_pcie_ring_mb_ring_bell, | |
1259 | brcmf_pcie_ring_mb_update_rptr, | |
1260 | brcmf_pcie_ring_mb_update_wptr, | |
1261 | brcmf_pcie_ring_mb_write_rptr, | |
1262 | brcmf_pcie_ring_mb_write_wptr, | |
1263 | ring); | |
1264 | ring->w_idx_addr = h2d_w_idx_ptr; | |
1265 | ring->r_idx_addr = h2d_r_idx_ptr; | |
f3550aeb FL |
1266 | h2d_w_idx_ptr += idx_offset; |
1267 | h2d_r_idx_ptr += idx_offset; | |
9e37f045 HM |
1268 | } |
1269 | devinfo->shared.flowrings = rings; | |
1270 | ||
1271 | return 0; | |
1272 | ||
1273 | fail: | |
8602e624 | 1274 | brcmf_err(bus, "Allocating ring buffers failed\n"); |
9e37f045 HM |
1275 | brcmf_pcie_release_ringbuffers(devinfo); |
1276 | return -ENOMEM; | |
1277 | } | |
1278 | ||
1279 | ||
1280 | static void | |
1281 | brcmf_pcie_release_scratchbuffers(struct brcmf_pciedev_info *devinfo) | |
1282 | { | |
1283 | if (devinfo->shared.scratch) | |
1284 | dma_free_coherent(&devinfo->pdev->dev, | |
1285 | BRCMF_DMA_D2H_SCRATCH_BUF_LEN, | |
1286 | devinfo->shared.scratch, | |
1287 | devinfo->shared.scratch_dmahandle); | |
1288 | if (devinfo->shared.ringupd) | |
1289 | dma_free_coherent(&devinfo->pdev->dev, | |
1290 | BRCMF_DMA_D2H_RINGUPD_BUF_LEN, | |
1291 | devinfo->shared.ringupd, | |
1292 | devinfo->shared.ringupd_dmahandle); | |
1293 | } | |
1294 | ||
1295 | static int brcmf_pcie_init_scratchbuffers(struct brcmf_pciedev_info *devinfo) | |
1296 | { | |
8602e624 | 1297 | struct brcmf_bus *bus = dev_get_drvdata(&devinfo->pdev->dev); |
83297aaa | 1298 | u64 address; |
9e37f045 HM |
1299 | u32 addr; |
1300 | ||
b7acadaf | 1301 | devinfo->shared.scratch = |
750afb08 LC |
1302 | dma_alloc_coherent(&devinfo->pdev->dev, |
1303 | BRCMF_DMA_D2H_SCRATCH_BUF_LEN, | |
1304 | &devinfo->shared.scratch_dmahandle, | |
1305 | GFP_KERNEL); | |
9e37f045 HM |
1306 | if (!devinfo->shared.scratch) |
1307 | goto fail; | |
1308 | ||
9e37f045 HM |
1309 | addr = devinfo->shared.tcm_base_address + |
1310 | BRCMF_SHARED_DMA_SCRATCH_ADDR_OFFSET; | |
83297aaa | 1311 | address = (u64)devinfo->shared.scratch_dmahandle; |
9e37f045 HM |
1312 | brcmf_pcie_write_tcm32(devinfo, addr, address & 0xffffffff); |
1313 | brcmf_pcie_write_tcm32(devinfo, addr + 4, address >> 32); | |
1314 | addr = devinfo->shared.tcm_base_address + | |
1315 | BRCMF_SHARED_DMA_SCRATCH_LEN_OFFSET; | |
1316 | brcmf_pcie_write_tcm32(devinfo, addr, BRCMF_DMA_D2H_SCRATCH_BUF_LEN); | |
1317 | ||
b7acadaf | 1318 | devinfo->shared.ringupd = |
750afb08 LC |
1319 | dma_alloc_coherent(&devinfo->pdev->dev, |
1320 | BRCMF_DMA_D2H_RINGUPD_BUF_LEN, | |
1321 | &devinfo->shared.ringupd_dmahandle, | |
1322 | GFP_KERNEL); | |
9e37f045 HM |
1323 | if (!devinfo->shared.ringupd) |
1324 | goto fail; | |
1325 | ||
9e37f045 HM |
1326 | addr = devinfo->shared.tcm_base_address + |
1327 | BRCMF_SHARED_DMA_RINGUPD_ADDR_OFFSET; | |
83297aaa | 1328 | address = (u64)devinfo->shared.ringupd_dmahandle; |
9e37f045 HM |
1329 | brcmf_pcie_write_tcm32(devinfo, addr, address & 0xffffffff); |
1330 | brcmf_pcie_write_tcm32(devinfo, addr + 4, address >> 32); | |
1331 | addr = devinfo->shared.tcm_base_address + | |
1332 | BRCMF_SHARED_DMA_RINGUPD_LEN_OFFSET; | |
1333 | brcmf_pcie_write_tcm32(devinfo, addr, BRCMF_DMA_D2H_RINGUPD_BUF_LEN); | |
1334 | return 0; | |
1335 | ||
1336 | fail: | |
8602e624 | 1337 | brcmf_err(bus, "Allocating scratch buffers failed\n"); |
9e37f045 HM |
1338 | brcmf_pcie_release_scratchbuffers(devinfo); |
1339 | return -ENOMEM; | |
1340 | } | |
1341 | ||
1342 | ||
1343 | static void brcmf_pcie_down(struct device *dev) | |
1344 | { | |
1345 | } | |
1346 | ||
1347 | ||
1348 | static int brcmf_pcie_tx(struct device *dev, struct sk_buff *skb) | |
1349 | { | |
1350 | return 0; | |
1351 | } | |
1352 | ||
1353 | ||
1354 | static int brcmf_pcie_tx_ctlpkt(struct device *dev, unsigned char *msg, | |
1355 | uint len) | |
1356 | { | |
1357 | return 0; | |
1358 | } | |
1359 | ||
1360 | ||
1361 | static int brcmf_pcie_rx_ctlpkt(struct device *dev, unsigned char *msg, | |
1362 | uint len) | |
1363 | { | |
1364 | return 0; | |
1365 | } | |
1366 | ||
1367 | ||
4eb3af7c HM |
1368 | static void brcmf_pcie_wowl_config(struct device *dev, bool enabled) |
1369 | { | |
1370 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); | |
1371 | struct brcmf_pciedev *buspub = bus_if->bus_priv.pcie; | |
1372 | struct brcmf_pciedev_info *devinfo = buspub->devinfo; | |
1373 | ||
1374 | brcmf_dbg(PCIE, "Configuring WOWL, enabled=%d\n", enabled); | |
1375 | devinfo->wowl_enabled = enabled; | |
4eb3af7c HM |
1376 | } |
1377 | ||
1378 | ||
ff4445a8 AS |
1379 | static size_t brcmf_pcie_get_ramsize(struct device *dev) |
1380 | { | |
1381 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); | |
1382 | struct brcmf_pciedev *buspub = bus_if->bus_priv.pcie; | |
1383 | struct brcmf_pciedev_info *devinfo = buspub->devinfo; | |
1384 | ||
1385 | return devinfo->ci->ramsize - devinfo->ci->srsize; | |
1386 | } | |
1387 | ||
1388 | ||
1389 | static int brcmf_pcie_get_memdump(struct device *dev, void *data, size_t len) | |
1390 | { | |
1391 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); | |
1392 | struct brcmf_pciedev *buspub = bus_if->bus_priv.pcie; | |
1393 | struct brcmf_pciedev_info *devinfo = buspub->devinfo; | |
1394 | ||
1395 | brcmf_dbg(PCIE, "dump at 0x%08X: len=%zu\n", devinfo->ci->rambase, len); | |
1396 | brcmf_pcie_copy_dev_tomem(devinfo, devinfo->ci->rambase, data, len); | |
1397 | return 0; | |
1398 | } | |
1399 | ||
bf7a7b37 AVS |
1400 | static |
1401 | int brcmf_pcie_get_fwname(struct device *dev, const char *ext, u8 *fw_name) | |
fdd0bd88 CHH |
1402 | { |
1403 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); | |
bf7a7b37 AVS |
1404 | struct brcmf_fw_request *fwreq; |
1405 | struct brcmf_fw_name fwnames[] = { | |
1406 | { ext, fw_name }, | |
1407 | }; | |
1408 | ||
1409 | fwreq = brcmf_fw_alloc_request(bus_if->chip, bus_if->chiprev, | |
1410 | brcmf_pcie_fwnames, | |
1411 | ARRAY_SIZE(brcmf_pcie_fwnames), | |
1412 | fwnames, ARRAY_SIZE(fwnames)); | |
1413 | if (!fwreq) | |
1414 | return -ENOMEM; | |
1415 | ||
1416 | kfree(fwreq); | |
1417 | return 0; | |
fdd0bd88 | 1418 | } |
ff4445a8 | 1419 | |
4684997d RM |
1420 | static int brcmf_pcie_reset(struct device *dev) |
1421 | { | |
1422 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); | |
1423 | struct brcmf_pciedev *buspub = bus_if->bus_priv.pcie; | |
1424 | struct brcmf_pciedev_info *devinfo = buspub->devinfo; | |
1425 | struct brcmf_fw_request *fwreq; | |
1426 | int err; | |
1427 | ||
5d26a6a6 RM |
1428 | brcmf_pcie_intr_disable(devinfo); |
1429 | ||
47dd82e3 RM |
1430 | brcmf_pcie_bus_console_read(devinfo, true); |
1431 | ||
4684997d RM |
1432 | brcmf_detach(dev); |
1433 | ||
1434 | brcmf_pcie_release_irq(devinfo); | |
1435 | brcmf_pcie_release_scratchbuffers(devinfo); | |
1436 | brcmf_pcie_release_ringbuffers(devinfo); | |
1437 | brcmf_pcie_reset_device(devinfo); | |
1438 | ||
1439 | fwreq = brcmf_pcie_prepare_fw_request(devinfo); | |
1440 | if (!fwreq) { | |
1441 | dev_err(dev, "Failed to prepare FW request\n"); | |
1442 | return -ENOMEM; | |
1443 | } | |
1444 | ||
1445 | err = brcmf_fw_get_firmwares(dev, fwreq, brcmf_pcie_setup); | |
1446 | if (err) { | |
1447 | dev_err(dev, "Failed to prepare FW request\n"); | |
1448 | kfree(fwreq); | |
1449 | } | |
1450 | ||
1451 | return err; | |
1452 | } | |
1453 | ||
6866a64a | 1454 | static const struct brcmf_bus_ops brcmf_pcie_bus_ops = { |
9e37f045 HM |
1455 | .txdata = brcmf_pcie_tx, |
1456 | .stop = brcmf_pcie_down, | |
1457 | .txctl = brcmf_pcie_tx_ctlpkt, | |
1458 | .rxctl = brcmf_pcie_rx_ctlpkt, | |
4eb3af7c | 1459 | .wowl_config = brcmf_pcie_wowl_config, |
ff4445a8 AS |
1460 | .get_ramsize = brcmf_pcie_get_ramsize, |
1461 | .get_memdump = brcmf_pcie_get_memdump, | |
fdd0bd88 | 1462 | .get_fwname = brcmf_pcie_get_fwname, |
4684997d | 1463 | .reset = brcmf_pcie_reset, |
9e37f045 HM |
1464 | }; |
1465 | ||
1466 | ||
6ac27689 HM |
1467 | static void |
1468 | brcmf_pcie_adjust_ramsize(struct brcmf_pciedev_info *devinfo, u8 *data, | |
1469 | u32 data_len) | |
1470 | { | |
1471 | __le32 *field; | |
1472 | u32 newsize; | |
1473 | ||
1474 | if (data_len < BRCMF_RAMSIZE_OFFSET + 8) | |
1475 | return; | |
1476 | ||
1477 | field = (__le32 *)&data[BRCMF_RAMSIZE_OFFSET]; | |
1478 | if (le32_to_cpup(field) != BRCMF_RAMSIZE_MAGIC) | |
1479 | return; | |
1480 | field++; | |
1481 | newsize = le32_to_cpup(field); | |
1482 | ||
1483 | brcmf_dbg(PCIE, "Found ramsize info in FW, adjusting to 0x%x\n", | |
1484 | newsize); | |
1485 | devinfo->ci->ramsize = newsize; | |
1486 | } | |
1487 | ||
1488 | ||
9e37f045 HM |
1489 | static int |
1490 | brcmf_pcie_init_share_ram_info(struct brcmf_pciedev_info *devinfo, | |
1491 | u32 sharedram_addr) | |
1492 | { | |
8602e624 | 1493 | struct brcmf_bus *bus = dev_get_drvdata(&devinfo->pdev->dev); |
9e37f045 HM |
1494 | struct brcmf_pcie_shared_info *shared; |
1495 | u32 addr; | |
9e37f045 HM |
1496 | |
1497 | shared = &devinfo->shared; | |
1498 | shared->tcm_base_address = sharedram_addr; | |
1499 | ||
1500 | shared->flags = brcmf_pcie_read_tcm32(devinfo, sharedram_addr); | |
be4b092c FL |
1501 | shared->version = (u8)(shared->flags & BRCMF_PCIE_SHARED_VERSION_MASK); |
1502 | brcmf_dbg(PCIE, "PCIe protocol version %d\n", shared->version); | |
1503 | if ((shared->version > BRCMF_PCIE_MAX_SHARED_VERSION) || | |
1504 | (shared->version < BRCMF_PCIE_MIN_SHARED_VERSION)) { | |
8602e624 RM |
1505 | brcmf_err(bus, "Unsupported PCIE version %d\n", |
1506 | shared->version); | |
9e37f045 HM |
1507 | return -EINVAL; |
1508 | } | |
9e37f045 | 1509 | |
f3550aeb FL |
1510 | /* check firmware support dma indicies */ |
1511 | if (shared->flags & BRCMF_PCIE_SHARED_DMA_INDEX) { | |
1512 | if (shared->flags & BRCMF_PCIE_SHARED_DMA_2B_IDX) | |
1513 | devinfo->dma_idx_sz = sizeof(u16); | |
1514 | else | |
1515 | devinfo->dma_idx_sz = sizeof(u32); | |
1516 | } | |
1517 | ||
9e37f045 HM |
1518 | addr = sharedram_addr + BRCMF_SHARED_MAX_RXBUFPOST_OFFSET; |
1519 | shared->max_rxbufpost = brcmf_pcie_read_tcm16(devinfo, addr); | |
1520 | if (shared->max_rxbufpost == 0) | |
1521 | shared->max_rxbufpost = BRCMF_DEF_MAX_RXBUFPOST; | |
1522 | ||
1523 | addr = sharedram_addr + BRCMF_SHARED_RX_DATAOFFSET_OFFSET; | |
1524 | shared->rx_dataoffset = brcmf_pcie_read_tcm32(devinfo, addr); | |
1525 | ||
1526 | addr = sharedram_addr + BRCMF_SHARED_HTOD_MB_DATA_ADDR_OFFSET; | |
1527 | shared->htod_mb_data_addr = brcmf_pcie_read_tcm32(devinfo, addr); | |
1528 | ||
1529 | addr = sharedram_addr + BRCMF_SHARED_DTOH_MB_DATA_ADDR_OFFSET; | |
1530 | shared->dtoh_mb_data_addr = brcmf_pcie_read_tcm32(devinfo, addr); | |
1531 | ||
1532 | addr = sharedram_addr + BRCMF_SHARED_RING_INFO_ADDR_OFFSET; | |
1533 | shared->ring_info_addr = brcmf_pcie_read_tcm32(devinfo, addr); | |
1534 | ||
1535 | brcmf_dbg(PCIE, "max rx buf post %d, rx dataoffset %d\n", | |
1536 | shared->max_rxbufpost, shared->rx_dataoffset); | |
1537 | ||
1538 | brcmf_pcie_bus_console_init(devinfo); | |
1539 | ||
1540 | return 0; | |
1541 | } | |
1542 | ||
1543 | ||
9e37f045 HM |
1544 | static int brcmf_pcie_download_fw_nvram(struct brcmf_pciedev_info *devinfo, |
1545 | const struct firmware *fw, void *nvram, | |
1546 | u32 nvram_len) | |
1547 | { | |
8602e624 | 1548 | struct brcmf_bus *bus = dev_get_drvdata(&devinfo->pdev->dev); |
9e37f045 HM |
1549 | u32 sharedram_addr; |
1550 | u32 sharedram_addr_written; | |
1551 | u32 loop_counter; | |
1552 | int err; | |
1553 | u32 address; | |
1554 | u32 resetintr; | |
1555 | ||
9e37f045 HM |
1556 | brcmf_dbg(PCIE, "Halt ARM.\n"); |
1557 | err = brcmf_pcie_enter_download_state(devinfo); | |
1558 | if (err) | |
1559 | return err; | |
1560 | ||
1561 | brcmf_dbg(PCIE, "Download FW %s\n", devinfo->fw_name); | |
1562 | brcmf_pcie_copy_mem_todev(devinfo, devinfo->ci->rambase, | |
1563 | (void *)fw->data, fw->size); | |
1564 | ||
1565 | resetintr = get_unaligned_le32(fw->data); | |
1566 | release_firmware(fw); | |
1567 | ||
1568 | /* reset last 4 bytes of RAM address. to be used for shared | |
1569 | * area. This identifies when FW is running | |
1570 | */ | |
1571 | brcmf_pcie_write_ram32(devinfo, devinfo->ci->ramsize - 4, 0); | |
1572 | ||
1573 | if (nvram) { | |
1574 | brcmf_dbg(PCIE, "Download NVRAM %s\n", devinfo->nvram_name); | |
1575 | address = devinfo->ci->rambase + devinfo->ci->ramsize - | |
1576 | nvram_len; | |
1577 | brcmf_pcie_copy_mem_todev(devinfo, address, nvram, nvram_len); | |
1578 | brcmf_fw_nvram_free(nvram); | |
1579 | } else { | |
1580 | brcmf_dbg(PCIE, "No matching NVRAM file found %s\n", | |
1581 | devinfo->nvram_name); | |
1582 | } | |
1583 | ||
1584 | sharedram_addr_written = brcmf_pcie_read_ram32(devinfo, | |
1585 | devinfo->ci->ramsize - | |
1586 | 4); | |
1587 | brcmf_dbg(PCIE, "Bring ARM in running state\n"); | |
1588 | err = brcmf_pcie_exit_download_state(devinfo, resetintr); | |
1589 | if (err) | |
1590 | return err; | |
1591 | ||
1592 | brcmf_dbg(PCIE, "Wait for FW init\n"); | |
1593 | sharedram_addr = sharedram_addr_written; | |
1594 | loop_counter = BRCMF_PCIE_FW_UP_TIMEOUT / 50; | |
1595 | while ((sharedram_addr == sharedram_addr_written) && (loop_counter)) { | |
1596 | msleep(50); | |
1597 | sharedram_addr = brcmf_pcie_read_ram32(devinfo, | |
1598 | devinfo->ci->ramsize - | |
1599 | 4); | |
1600 | loop_counter--; | |
1601 | } | |
1602 | if (sharedram_addr == sharedram_addr_written) { | |
8602e624 | 1603 | brcmf_err(bus, "FW failed to initialize\n"); |
9e37f045 HM |
1604 | return -ENODEV; |
1605 | } | |
e0a8ef4d RM |
1606 | if (sharedram_addr < devinfo->ci->rambase || |
1607 | sharedram_addr >= devinfo->ci->rambase + devinfo->ci->ramsize) { | |
1608 | brcmf_err(bus, "Invalid shared RAM address 0x%08x\n", | |
1609 | sharedram_addr); | |
1610 | return -ENODEV; | |
1611 | } | |
9e37f045 HM |
1612 | brcmf_dbg(PCIE, "Shared RAM addr: 0x%08x\n", sharedram_addr); |
1613 | ||
1614 | return (brcmf_pcie_init_share_ram_info(devinfo, sharedram_addr)); | |
1615 | } | |
1616 | ||
1617 | ||
1618 | static int brcmf_pcie_get_resource(struct brcmf_pciedev_info *devinfo) | |
1619 | { | |
8602e624 RM |
1620 | struct pci_dev *pdev = devinfo->pdev; |
1621 | struct brcmf_bus *bus = dev_get_drvdata(&pdev->dev); | |
9e37f045 HM |
1622 | int err; |
1623 | phys_addr_t bar0_addr, bar1_addr; | |
1624 | ulong bar1_size; | |
1625 | ||
9e37f045 HM |
1626 | err = pci_enable_device(pdev); |
1627 | if (err) { | |
8602e624 | 1628 | brcmf_err(bus, "pci_enable_device failed err=%d\n", err); |
9e37f045 HM |
1629 | return err; |
1630 | } | |
1631 | ||
1632 | pci_set_master(pdev); | |
1633 | ||
1634 | /* Bar-0 mapped address */ | |
1635 | bar0_addr = pci_resource_start(pdev, 0); | |
1636 | /* Bar-1 mapped address */ | |
1637 | bar1_addr = pci_resource_start(pdev, 2); | |
1638 | /* read Bar-1 mapped memory range */ | |
1639 | bar1_size = pci_resource_len(pdev, 2); | |
1640 | if ((bar1_size == 0) || (bar1_addr == 0)) { | |
8602e624 | 1641 | brcmf_err(bus, "BAR1 Not enabled, device size=%ld, addr=%#016llx\n", |
9e37f045 HM |
1642 | bar1_size, (unsigned long long)bar1_addr); |
1643 | return -EINVAL; | |
1644 | } | |
1645 | ||
1646 | devinfo->regs = ioremap_nocache(bar0_addr, BRCMF_PCIE_REG_MAP_SIZE); | |
9300bf86 | 1647 | devinfo->tcm = ioremap_nocache(bar1_addr, bar1_size); |
9e37f045 HM |
1648 | |
1649 | if (!devinfo->regs || !devinfo->tcm) { | |
8602e624 | 1650 | brcmf_err(bus, "ioremap() failed (%p,%p)\n", devinfo->regs, |
9e37f045 HM |
1651 | devinfo->tcm); |
1652 | return -EINVAL; | |
1653 | } | |
1654 | brcmf_dbg(PCIE, "Phys addr : reg space = %p base addr %#016llx\n", | |
1655 | devinfo->regs, (unsigned long long)bar0_addr); | |
9300bf86 HM |
1656 | brcmf_dbg(PCIE, "Phys addr : mem space = %p base addr %#016llx size 0x%x\n", |
1657 | devinfo->tcm, (unsigned long long)bar1_addr, | |
1658 | (unsigned int)bar1_size); | |
9e37f045 HM |
1659 | |
1660 | return 0; | |
1661 | } | |
1662 | ||
1663 | ||
1664 | static void brcmf_pcie_release_resource(struct brcmf_pciedev_info *devinfo) | |
1665 | { | |
1666 | if (devinfo->tcm) | |
1667 | iounmap(devinfo->tcm); | |
1668 | if (devinfo->regs) | |
1669 | iounmap(devinfo->regs); | |
1670 | ||
1671 | pci_disable_device(devinfo->pdev); | |
1672 | } | |
1673 | ||
1674 | ||
9e37f045 HM |
1675 | static u32 brcmf_pcie_buscore_prep_addr(const struct pci_dev *pdev, u32 addr) |
1676 | { | |
1677 | u32 ret_addr; | |
1678 | ||
1679 | ret_addr = addr & (BRCMF_PCIE_BAR0_REG_SIZE - 1); | |
1680 | addr &= ~(BRCMF_PCIE_BAR0_REG_SIZE - 1); | |
1681 | pci_write_config_dword(pdev, BRCMF_PCIE_BAR0_WINDOW, addr); | |
1682 | ||
1683 | return ret_addr; | |
1684 | } | |
1685 | ||
1686 | ||
1687 | static u32 brcmf_pcie_buscore_read32(void *ctx, u32 addr) | |
1688 | { | |
1689 | struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)ctx; | |
1690 | ||
1691 | addr = brcmf_pcie_buscore_prep_addr(devinfo->pdev, addr); | |
1692 | return brcmf_pcie_read_reg32(devinfo, addr); | |
1693 | } | |
1694 | ||
1695 | ||
1696 | static void brcmf_pcie_buscore_write32(void *ctx, u32 addr, u32 value) | |
1697 | { | |
1698 | struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)ctx; | |
1699 | ||
1700 | addr = brcmf_pcie_buscore_prep_addr(devinfo->pdev, addr); | |
1701 | brcmf_pcie_write_reg32(devinfo, addr, value); | |
1702 | } | |
1703 | ||
1704 | ||
1705 | static int brcmf_pcie_buscoreprep(void *ctx) | |
1706 | { | |
c161f29b | 1707 | return brcmf_pcie_get_resource(ctx); |
9e37f045 HM |
1708 | } |
1709 | ||
1710 | ||
07fe2e38 HM |
1711 | static int brcmf_pcie_buscore_reset(void *ctx, struct brcmf_chip *chip) |
1712 | { | |
1713 | struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)ctx; | |
1714 | u32 val; | |
1715 | ||
1716 | devinfo->ci = chip; | |
1717 | brcmf_pcie_reset_device(devinfo); | |
1718 | ||
1719 | val = brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT); | |
1720 | if (val != 0xffffffff) | |
1721 | brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT, | |
1722 | val); | |
1723 | ||
1724 | return 0; | |
1725 | } | |
1726 | ||
1727 | ||
d380ebc9 AS |
1728 | static void brcmf_pcie_buscore_activate(void *ctx, struct brcmf_chip *chip, |
1729 | u32 rstvec) | |
9e37f045 HM |
1730 | { |
1731 | struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)ctx; | |
1732 | ||
1733 | brcmf_pcie_write_tcm32(devinfo, 0, rstvec); | |
1734 | } | |
1735 | ||
1736 | ||
1737 | static const struct brcmf_buscore_ops brcmf_pcie_buscore_ops = { | |
1738 | .prepare = brcmf_pcie_buscoreprep, | |
07fe2e38 | 1739 | .reset = brcmf_pcie_buscore_reset, |
d380ebc9 | 1740 | .activate = brcmf_pcie_buscore_activate, |
9e37f045 HM |
1741 | .read32 = brcmf_pcie_buscore_read32, |
1742 | .write32 = brcmf_pcie_buscore_write32, | |
1743 | }; | |
1744 | ||
d09ae51a AVS |
1745 | #define BRCMF_PCIE_FW_CODE 0 |
1746 | #define BRCMF_PCIE_FW_NVRAM 1 | |
1747 | ||
6d0507a7 | 1748 | static void brcmf_pcie_setup(struct device *dev, int ret, |
d09ae51a | 1749 | struct brcmf_fw_request *fwreq) |
9e37f045 | 1750 | { |
d09ae51a AVS |
1751 | const struct firmware *fw; |
1752 | void *nvram; | |
6d0507a7 AVS |
1753 | struct brcmf_bus *bus; |
1754 | struct brcmf_pciedev *pcie_bus_dev; | |
1755 | struct brcmf_pciedev_info *devinfo; | |
9e37f045 | 1756 | struct brcmf_commonring **flowrings; |
d09ae51a | 1757 | u32 i, nvram_len; |
9e37f045 | 1758 | |
6d0507a7 AVS |
1759 | /* check firmware loading result */ |
1760 | if (ret) | |
1761 | goto fail; | |
1762 | ||
1763 | bus = dev_get_drvdata(dev); | |
1764 | pcie_bus_dev = bus->bus_priv.pcie; | |
1765 | devinfo = pcie_bus_dev->devinfo; | |
9e37f045 HM |
1766 | brcmf_pcie_attach(devinfo); |
1767 | ||
d09ae51a AVS |
1768 | fw = fwreq->items[BRCMF_PCIE_FW_CODE].binary; |
1769 | nvram = fwreq->items[BRCMF_PCIE_FW_NVRAM].nv_data.data; | |
1770 | nvram_len = fwreq->items[BRCMF_PCIE_FW_NVRAM].nv_data.len; | |
1771 | kfree(fwreq); | |
1772 | ||
82f93cf4 RM |
1773 | ret = brcmf_chip_get_raminfo(devinfo->ci); |
1774 | if (ret) { | |
1775 | brcmf_err(bus, "Failed to get RAM info\n"); | |
1776 | goto fail; | |
1777 | } | |
1778 | ||
6ac27689 HM |
1779 | /* Some of the firmwares have the size of the memory of the device |
1780 | * defined inside the firmware. This is because part of the memory in | |
1781 | * the device is shared and the devision is determined by FW. Parse | |
1782 | * the firmware and adjust the chip memory size now. | |
1783 | */ | |
1784 | brcmf_pcie_adjust_ramsize(devinfo, (u8 *)fw->data, fw->size); | |
1785 | ||
9e37f045 HM |
1786 | ret = brcmf_pcie_download_fw_nvram(devinfo, fw, nvram, nvram_len); |
1787 | if (ret) | |
1788 | goto fail; | |
1789 | ||
1790 | devinfo->state = BRCMFMAC_PCIE_STATE_UP; | |
1791 | ||
1792 | ret = brcmf_pcie_init_ringbuffers(devinfo); | |
1793 | if (ret) | |
1794 | goto fail; | |
1795 | ||
1796 | ret = brcmf_pcie_init_scratchbuffers(devinfo); | |
1797 | if (ret) | |
1798 | goto fail; | |
1799 | ||
1800 | brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2); | |
1801 | ret = brcmf_pcie_request_irq(devinfo); | |
1802 | if (ret) | |
1803 | goto fail; | |
1804 | ||
1805 | /* hook the commonrings in the bus structure. */ | |
1806 | for (i = 0; i < BRCMF_NROF_COMMON_MSGRINGS; i++) | |
1807 | bus->msgbuf->commonrings[i] = | |
1808 | &devinfo->shared.commonrings[i]->commonring; | |
1809 | ||
be4b092c | 1810 | flowrings = kcalloc(devinfo->shared.max_flowrings, sizeof(*flowrings), |
9e37f045 HM |
1811 | GFP_KERNEL); |
1812 | if (!flowrings) | |
1813 | goto fail; | |
1814 | ||
be4b092c | 1815 | for (i = 0; i < devinfo->shared.max_flowrings; i++) |
9e37f045 HM |
1816 | flowrings[i] = &devinfo->shared.flowrings[i].commonring; |
1817 | bus->msgbuf->flowrings = flowrings; | |
1818 | ||
1819 | bus->msgbuf->rx_dataoffset = devinfo->shared.rx_dataoffset; | |
1820 | bus->msgbuf->max_rxbufpost = devinfo->shared.max_rxbufpost; | |
be4b092c | 1821 | bus->msgbuf->max_flowrings = devinfo->shared.max_flowrings; |
9e37f045 HM |
1822 | |
1823 | init_waitqueue_head(&devinfo->mbdata_resp_wait); | |
1824 | ||
1825 | brcmf_pcie_intr_enable(devinfo); | |
84ad327d | 1826 | brcmf_pcie_hostready(devinfo); |
450914c3 | 1827 | |
450914c3 RM |
1828 | ret = brcmf_attach(&devinfo->pdev->dev); |
1829 | if (ret) | |
1830 | goto fail; | |
9e37f045 | 1831 | |
47dd82e3 | 1832 | brcmf_pcie_bus_console_read(devinfo, false); |
9e37f045 | 1833 | |
450914c3 RM |
1834 | return; |
1835 | ||
9e37f045 HM |
1836 | fail: |
1837 | device_release_driver(dev); | |
1838 | } | |
1839 | ||
2baa3aae AVS |
1840 | static struct brcmf_fw_request * |
1841 | brcmf_pcie_prepare_fw_request(struct brcmf_pciedev_info *devinfo) | |
1842 | { | |
1843 | struct brcmf_fw_request *fwreq; | |
1844 | struct brcmf_fw_name fwnames[] = { | |
1845 | { ".bin", devinfo->fw_name }, | |
1846 | { ".txt", devinfo->nvram_name }, | |
1847 | }; | |
1848 | ||
1849 | fwreq = brcmf_fw_alloc_request(devinfo->ci->chip, devinfo->ci->chiprev, | |
1850 | brcmf_pcie_fwnames, | |
1851 | ARRAY_SIZE(brcmf_pcie_fwnames), | |
1852 | fwnames, ARRAY_SIZE(fwnames)); | |
1853 | if (!fwreq) | |
1854 | return NULL; | |
1855 | ||
1856 | fwreq->items[BRCMF_PCIE_FW_CODE].type = BRCMF_FW_TYPE_BINARY; | |
1857 | fwreq->items[BRCMF_PCIE_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM; | |
1858 | fwreq->items[BRCMF_PCIE_FW_NVRAM].flags = BRCMF_FW_REQF_OPTIONAL; | |
0ad4b55b | 1859 | fwreq->board_type = devinfo->settings->board_type; |
299b6365 RM |
1860 | /* NVRAM reserves PCI domain 0 for Broadcom's SDK faked bus */ |
1861 | fwreq->domain_nr = pci_domain_nr(devinfo->pdev->bus) + 1; | |
2baa3aae AVS |
1862 | fwreq->bus_nr = devinfo->pdev->bus->number; |
1863 | ||
1864 | return fwreq; | |
1865 | } | |
1866 | ||
9e37f045 HM |
1867 | static int |
1868 | brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) | |
1869 | { | |
1870 | int ret; | |
d09ae51a | 1871 | struct brcmf_fw_request *fwreq; |
9e37f045 HM |
1872 | struct brcmf_pciedev_info *devinfo; |
1873 | struct brcmf_pciedev *pcie_bus_dev; | |
1874 | struct brcmf_bus *bus; | |
1875 | ||
2baa3aae | 1876 | brcmf_dbg(PCIE, "Enter %x:%x\n", pdev->vendor, pdev->device); |
9e37f045 HM |
1877 | |
1878 | ret = -ENOMEM; | |
1879 | devinfo = kzalloc(sizeof(*devinfo), GFP_KERNEL); | |
1880 | if (devinfo == NULL) | |
1881 | return ret; | |
1882 | ||
1883 | devinfo->pdev = pdev; | |
1884 | pcie_bus_dev = NULL; | |
1885 | devinfo->ci = brcmf_chip_attach(devinfo, &brcmf_pcie_buscore_ops); | |
1886 | if (IS_ERR(devinfo->ci)) { | |
1887 | ret = PTR_ERR(devinfo->ci); | |
1888 | devinfo->ci = NULL; | |
1889 | goto fail; | |
1890 | } | |
1891 | ||
1892 | pcie_bus_dev = kzalloc(sizeof(*pcie_bus_dev), GFP_KERNEL); | |
1893 | if (pcie_bus_dev == NULL) { | |
1894 | ret = -ENOMEM; | |
1895 | goto fail; | |
1896 | } | |
1897 | ||
af5b5e62 HM |
1898 | devinfo->settings = brcmf_get_module_param(&devinfo->pdev->dev, |
1899 | BRCMF_BUSTYPE_PCIE, | |
1900 | devinfo->ci->chip, | |
1901 | devinfo->ci->chiprev); | |
1902 | if (!devinfo->settings) { | |
1903 | ret = -ENOMEM; | |
1904 | goto fail; | |
1905 | } | |
1906 | ||
9e37f045 HM |
1907 | bus = kzalloc(sizeof(*bus), GFP_KERNEL); |
1908 | if (!bus) { | |
1909 | ret = -ENOMEM; | |
1910 | goto fail; | |
1911 | } | |
1912 | bus->msgbuf = kzalloc(sizeof(*bus->msgbuf), GFP_KERNEL); | |
1913 | if (!bus->msgbuf) { | |
1914 | ret = -ENOMEM; | |
1915 | kfree(bus); | |
1916 | goto fail; | |
1917 | } | |
1918 | ||
1919 | /* hook it all together. */ | |
1920 | pcie_bus_dev->devinfo = devinfo; | |
1921 | pcie_bus_dev->bus = bus; | |
1922 | bus->dev = &pdev->dev; | |
1923 | bus->bus_priv.pcie = pcie_bus_dev; | |
1924 | bus->ops = &brcmf_pcie_bus_ops; | |
1925 | bus->proto_type = BRCMF_PROTO_MSGBUF; | |
1926 | bus->chip = devinfo->coreid; | |
4eb3af7c | 1927 | bus->wowl_supported = pci_pme_capable(pdev, PCI_D3hot); |
9e37f045 HM |
1928 | dev_set_drvdata(&pdev->dev, bus); |
1929 | ||
a1f5aac1 RM |
1930 | ret = brcmf_alloc(&devinfo->pdev->dev, devinfo->settings); |
1931 | if (ret) | |
1932 | goto fail_bus; | |
1933 | ||
2baa3aae | 1934 | fwreq = brcmf_pcie_prepare_fw_request(devinfo); |
d09ae51a AVS |
1935 | if (!fwreq) { |
1936 | ret = -ENOMEM; | |
1937 | goto fail_bus; | |
1938 | } | |
1939 | ||
d09ae51a | 1940 | ret = brcmf_fw_get_firmwares(bus->dev, fwreq, brcmf_pcie_setup); |
2baa3aae AVS |
1941 | if (ret < 0) { |
1942 | kfree(fwreq); | |
1943 | goto fail_bus; | |
1944 | } | |
1945 | return 0; | |
d09ae51a | 1946 | |
9e37f045 HM |
1947 | fail_bus: |
1948 | kfree(bus->msgbuf); | |
1949 | kfree(bus); | |
1950 | fail: | |
8602e624 | 1951 | brcmf_err(NULL, "failed %x:%x\n", pdev->vendor, pdev->device); |
9e37f045 HM |
1952 | brcmf_pcie_release_resource(devinfo); |
1953 | if (devinfo->ci) | |
1954 | brcmf_chip_detach(devinfo->ci); | |
af5b5e62 HM |
1955 | if (devinfo->settings) |
1956 | brcmf_release_module_param(devinfo->settings); | |
9e37f045 HM |
1957 | kfree(pcie_bus_dev); |
1958 | kfree(devinfo); | |
1959 | return ret; | |
1960 | } | |
1961 | ||
1962 | ||
1963 | static void | |
1964 | brcmf_pcie_remove(struct pci_dev *pdev) | |
1965 | { | |
1966 | struct brcmf_pciedev_info *devinfo; | |
1967 | struct brcmf_bus *bus; | |
1968 | ||
1969 | brcmf_dbg(PCIE, "Enter\n"); | |
1970 | ||
1971 | bus = dev_get_drvdata(&pdev->dev); | |
1972 | if (bus == NULL) | |
1973 | return; | |
1974 | ||
1975 | devinfo = bus->bus_priv.pcie->devinfo; | |
1976 | ||
1977 | devinfo->state = BRCMFMAC_PCIE_STATE_DOWN; | |
1978 | if (devinfo->ci) | |
1979 | brcmf_pcie_intr_disable(devinfo); | |
1980 | ||
1981 | brcmf_detach(&pdev->dev); | |
450914c3 | 1982 | brcmf_free(&pdev->dev); |
9e37f045 HM |
1983 | |
1984 | kfree(bus->bus_priv.pcie); | |
1985 | kfree(bus->msgbuf->flowrings); | |
1986 | kfree(bus->msgbuf); | |
1987 | kfree(bus); | |
1988 | ||
1989 | brcmf_pcie_release_irq(devinfo); | |
1990 | brcmf_pcie_release_scratchbuffers(devinfo); | |
1991 | brcmf_pcie_release_ringbuffers(devinfo); | |
bd4f82e3 | 1992 | brcmf_pcie_reset_device(devinfo); |
9e37f045 HM |
1993 | brcmf_pcie_release_resource(devinfo); |
1994 | ||
1995 | if (devinfo->ci) | |
1996 | brcmf_chip_detach(devinfo->ci); | |
af5b5e62 HM |
1997 | if (devinfo->settings) |
1998 | brcmf_release_module_param(devinfo->settings); | |
9e37f045 HM |
1999 | |
2000 | kfree(devinfo); | |
2001 | dev_set_drvdata(&pdev->dev, NULL); | |
2002 | } | |
2003 | ||
2004 | ||
2005 | #ifdef CONFIG_PM | |
2006 | ||
2007 | ||
c2a43a6b | 2008 | static int brcmf_pcie_pm_enter_D3(struct device *dev) |
9e37f045 HM |
2009 | { |
2010 | struct brcmf_pciedev_info *devinfo; | |
2011 | struct brcmf_bus *bus; | |
9e37f045 | 2012 | |
f3fb7503 | 2013 | brcmf_dbg(PCIE, "Enter\n"); |
9e37f045 | 2014 | |
c2a43a6b | 2015 | bus = dev_get_drvdata(dev); |
9e37f045 HM |
2016 | devinfo = bus->bus_priv.pcie->devinfo; |
2017 | ||
2018 | brcmf_bus_change_state(bus, BRCMF_BUS_DOWN); | |
2019 | ||
2020 | devinfo->mbdata_completed = false; | |
2021 | brcmf_pcie_send_mb_data(devinfo, BRCMF_H2D_HOST_D3_INFORM); | |
2022 | ||
63ce3d5d AS |
2023 | wait_event_timeout(devinfo->mbdata_resp_wait, devinfo->mbdata_completed, |
2024 | BRCMF_PCIE_MBDATA_TIMEOUT); | |
9e37f045 | 2025 | if (!devinfo->mbdata_completed) { |
8602e624 | 2026 | brcmf_err(bus, "Timeout on response for entering D3 substate\n"); |
49fe9b59 | 2027 | brcmf_bus_change_state(bus, BRCMF_BUS_UP); |
9e37f045 HM |
2028 | return -EIO; |
2029 | } | |
9e37f045 | 2030 | |
c2a43a6b | 2031 | devinfo->state = BRCMFMAC_PCIE_STATE_DOWN; |
9e37f045 | 2032 | |
c2a43a6b | 2033 | return 0; |
9e37f045 HM |
2034 | } |
2035 | ||
c2a43a6b HM |
2036 | |
2037 | static int brcmf_pcie_pm_leave_D3(struct device *dev) | |
9e37f045 | 2038 | { |
4eb3af7c HM |
2039 | struct brcmf_pciedev_info *devinfo; |
2040 | struct brcmf_bus *bus; | |
c2a43a6b | 2041 | struct pci_dev *pdev; |
9e37f045 HM |
2042 | int err; |
2043 | ||
f3fb7503 | 2044 | brcmf_dbg(PCIE, "Enter\n"); |
9e37f045 | 2045 | |
c2a43a6b HM |
2046 | bus = dev_get_drvdata(dev); |
2047 | devinfo = bus->bus_priv.pcie->devinfo; | |
2048 | brcmf_dbg(PCIE, "Enter, dev=%p, bus=%p\n", dev, bus); | |
4eb3af7c HM |
2049 | |
2050 | /* Check if device is still up and running, if so we are ready */ | |
c2a43a6b HM |
2051 | if (brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_INTMASK) != 0) { |
2052 | brcmf_dbg(PCIE, "Try to wakeup device....\n"); | |
2053 | if (brcmf_pcie_send_mb_data(devinfo, BRCMF_H2D_HOST_D0_INFORM)) | |
2054 | goto cleanup; | |
2055 | brcmf_dbg(PCIE, "Hot resume, continue....\n"); | |
2056 | devinfo->state = BRCMFMAC_PCIE_STATE_UP; | |
2057 | brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2); | |
2058 | brcmf_bus_change_state(bus, BRCMF_BUS_UP); | |
2059 | brcmf_pcie_intr_enable(devinfo); | |
84ad327d | 2060 | brcmf_pcie_hostready(devinfo); |
c2a43a6b | 2061 | return 0; |
4eb3af7c | 2062 | } |
9e37f045 | 2063 | |
4eb3af7c | 2064 | cleanup: |
c2a43a6b HM |
2065 | brcmf_chip_detach(devinfo->ci); |
2066 | devinfo->ci = NULL; | |
2067 | pdev = devinfo->pdev; | |
2068 | brcmf_pcie_remove(pdev); | |
2069 | ||
9e37f045 HM |
2070 | err = brcmf_pcie_probe(pdev, NULL); |
2071 | if (err) | |
8602e624 | 2072 | brcmf_err(bus, "probe after resume failed, err=%d\n", err); |
9e37f045 HM |
2073 | |
2074 | return err; | |
2075 | } | |
2076 | ||
2077 | ||
c2a43a6b HM |
2078 | static const struct dev_pm_ops brcmf_pciedrvr_pm = { |
2079 | .suspend = brcmf_pcie_pm_enter_D3, | |
2080 | .resume = brcmf_pcie_pm_leave_D3, | |
2081 | .freeze = brcmf_pcie_pm_enter_D3, | |
2082 | .restore = brcmf_pcie_pm_leave_D3, | |
2083 | }; | |
2084 | ||
2085 | ||
9e37f045 HM |
2086 | #endif /* CONFIG_PM */ |
2087 | ||
2088 | ||
2089 | #define BRCMF_PCIE_DEVICE(dev_id) { BRCM_PCIE_VENDOR_ID_BROADCOM, dev_id,\ | |
2090 | PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_NETWORK_OTHER << 8, 0xffff00, 0 } | |
f66ab2a7 RM |
2091 | #define BRCMF_PCIE_DEVICE_SUB(dev_id, subvend, subdev) { \ |
2092 | BRCM_PCIE_VENDOR_ID_BROADCOM, dev_id,\ | |
2093 | subvend, subdev, PCI_CLASS_NETWORK_OTHER << 8, 0xffff00, 0 } | |
9e37f045 | 2094 | |
e66d70b7 | 2095 | static const struct pci_device_id brcmf_pcie_devid_table[] = { |
e3c92cb2 | 2096 | BRCMF_PCIE_DEVICE(BRCM_PCIE_4350_DEVICE_ID), |
2fef681a | 2097 | BRCMF_PCIE_DEVICE_SUB(0x4355, BRCM_PCIE_VENDOR_ID_BROADCOM, 0x4355), |
eb6b33bf | 2098 | BRCMF_PCIE_DEVICE(BRCM_PCIE_4354_RAW_DEVICE_ID), |
9e37f045 HM |
2099 | BRCMF_PCIE_DEVICE(BRCM_PCIE_4356_DEVICE_ID), |
2100 | BRCMF_PCIE_DEVICE(BRCM_PCIE_43567_DEVICE_ID), | |
2101 | BRCMF_PCIE_DEVICE(BRCM_PCIE_43570_DEVICE_ID), | |
67f3b6a3 | 2102 | BRCMF_PCIE_DEVICE(BRCM_PCIE_4358_DEVICE_ID), |
2aff0303 | 2103 | BRCMF_PCIE_DEVICE(BRCM_PCIE_4359_DEVICE_ID), |
9e37f045 | 2104 | BRCMF_PCIE_DEVICE(BRCM_PCIE_43602_DEVICE_ID), |
48fd818f HM |
2105 | BRCMF_PCIE_DEVICE(BRCM_PCIE_43602_2G_DEVICE_ID), |
2106 | BRCMF_PCIE_DEVICE(BRCM_PCIE_43602_5G_DEVICE_ID), | |
27aace2d | 2107 | BRCMF_PCIE_DEVICE(BRCM_PCIE_43602_RAW_DEVICE_ID), |
55acca90 HM |
2108 | BRCMF_PCIE_DEVICE(BRCM_PCIE_4365_DEVICE_ID), |
2109 | BRCMF_PCIE_DEVICE(BRCM_PCIE_4365_2G_DEVICE_ID), | |
2110 | BRCMF_PCIE_DEVICE(BRCM_PCIE_4365_5G_DEVICE_ID), | |
f66ab2a7 | 2111 | BRCMF_PCIE_DEVICE_SUB(0x4365, BRCM_PCIE_VENDOR_ID_BROADCOM, 0x4365), |
55acca90 HM |
2112 | BRCMF_PCIE_DEVICE(BRCM_PCIE_4366_DEVICE_ID), |
2113 | BRCMF_PCIE_DEVICE(BRCM_PCIE_4366_2G_DEVICE_ID), | |
2114 | BRCMF_PCIE_DEVICE(BRCM_PCIE_4366_5G_DEVICE_ID), | |
f8273baf | 2115 | BRCMF_PCIE_DEVICE(BRCM_PCIE_4371_DEVICE_ID), |
9e37f045 HM |
2116 | { /* end: all zeroes */ } |
2117 | }; | |
2118 | ||
2119 | ||
2120 | MODULE_DEVICE_TABLE(pci, brcmf_pcie_devid_table); | |
2121 | ||
2122 | ||
2123 | static struct pci_driver brcmf_pciedrvr = { | |
2124 | .node = {}, | |
2125 | .name = KBUILD_MODNAME, | |
2126 | .id_table = brcmf_pcie_devid_table, | |
2127 | .probe = brcmf_pcie_probe, | |
2128 | .remove = brcmf_pcie_remove, | |
2129 | #ifdef CONFIG_PM | |
c2a43a6b HM |
2130 | .driver.pm = &brcmf_pciedrvr_pm, |
2131 | #endif | |
8e072168 | 2132 | .driver.coredump = brcmf_dev_coredump, |
9e37f045 HM |
2133 | }; |
2134 | ||
2135 | ||
2136 | void brcmf_pcie_register(void) | |
2137 | { | |
2138 | int err; | |
2139 | ||
2140 | brcmf_dbg(PCIE, "Enter\n"); | |
2141 | err = pci_register_driver(&brcmf_pciedrvr); | |
2142 | if (err) | |
8602e624 RM |
2143 | brcmf_err(NULL, "PCIE driver registration failed, err=%d\n", |
2144 | err); | |
9e37f045 HM |
2145 | } |
2146 | ||
2147 | ||
2148 | void brcmf_pcie_exit(void) | |
2149 | { | |
2150 | brcmf_dbg(PCIE, "Enter\n"); | |
2151 | pci_unregister_driver(&brcmf_pciedrvr); | |
2152 | } |