1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * NXP Wireless LAN device driver: SDIO specific definitions
4 *
5 * Copyright 2011-2020 NXP
6 */
7
8 #ifndef _MWIFIEX_SDIO_H
9 #define _MWIFIEX_SDIO_H
10
11
12 #include <linux/completion.h>
13 #include <linux/mmc/sdio.h>
14 #include <linux/mmc/sdio_ids.h>
15 #include <linux/mmc/sdio_func.h>
16 #include <linux/mmc/card.h>
17 #include <linux/mmc/host.h>
18
19 #include "main.h"
20
21 #define SD8786_DEFAULT_FW_NAME "mrvl/sd8786_uapsta.bin"
22 #define SD8787_DEFAULT_FW_NAME "mrvl/sd8787_uapsta.bin"
23 #define SD8797_DEFAULT_FW_NAME "mrvl/sd8797_uapsta.bin"
24 #define SD8897_DEFAULT_FW_NAME "mrvl/sd8897_uapsta.bin"
25 #define SD8887_DEFAULT_FW_NAME "mrvl/sd8887_uapsta.bin"
26 #define SD8801_DEFAULT_FW_NAME "mrvl/sd8801_uapsta.bin"
27 #define SD8977_DEFAULT_FW_NAME "mrvl/sdsd8977_combo_v2.bin"
28 #define SD8978_SDIOUART_FW_NAME "mrvl/sdiouartiw416_combo_v0.bin"
29 #define SD8987_DEFAULT_FW_NAME "mrvl/sd8987_uapsta.bin"
30 #define SD8997_DEFAULT_FW_NAME "mrvl/sdsd8997_combo_v4.bin"
31 #define SD8997_SDIOUART_FW_NAME "mrvl/sdiouart8997_combo_v4.bin"
32
33 #define BLOCK_MODE 1
34 #define BYTE_MODE 0
35
36 #define MWIFIEX_SDIO_IO_PORT_MASK 0xfffff
37
38 #define MWIFIEX_SDIO_BYTE_MODE_MASK 0x80000000
39
40 #define MWIFIEX_MAX_FUNC2_REG_NUM 13
41 #define MWIFIEX_SDIO_SCRATCH_SIZE 10
42
43 #define SDIO_MPA_ADDR_BASE 0x1000
44 #define CTRL_PORT 0
45 #define CTRL_PORT_MASK 0x0001
46
47 #define CMD_PORT_UPLD_INT_MASK (0x1U<<6)
48 #define CMD_PORT_DNLD_INT_MASK (0x1U<<7)
49 #define HOST_TERM_CMD53 (0x1U << 2)
50 #define REG_PORT 0
51 #define MEM_PORT 0x10000
52
53 #define CMD53_NEW_MODE (0x1U << 0)
54 #define CMD_PORT_RD_LEN_EN (0x1U << 2)
55 #define CMD_PORT_AUTO_EN (0x1U << 0)
56 #define CMD_PORT_SLCT 0x8000
57 #define UP_LD_CMD_PORT_HOST_INT_STATUS (0x40U)
58 #define DN_LD_CMD_PORT_HOST_INT_STATUS (0x80U)
59
60 #define MWIFIEX_MP_AGGR_BUF_SIZE_16K (16384)
61 #define MWIFIEX_MP_AGGR_BUF_SIZE_32K (32768)
62 /* we leave one block of 256 bytes for DMA alignment*/
63 #define MWIFIEX_MP_AGGR_BUF_SIZE_MAX (65280)
64
65 /* Misc. Config Register : Auto Re-enable interrupts */
66 #define AUTO_RE_ENABLE_INT BIT(4)
67
68 /* Host Control Registers : Configuration */
69 #define CONFIGURATION_REG 0x00
70 /* Host Control Registers : Host power up */
71 #define HOST_POWER_UP (0x1U << 1)
72
73 /* Host Control Registers : Upload host interrupt mask */
74 #define UP_LD_HOST_INT_MASK (0x1U)
75 /* Host Control Registers : Download host interrupt mask */
76 #define DN_LD_HOST_INT_MASK (0x2U)
77
78 /* Host Control Registers : Upload host interrupt status */
79 #define UP_LD_HOST_INT_STATUS (0x1U)
80 /* Host Control Registers : Download host interrupt status */
81 #define DN_LD_HOST_INT_STATUS (0x2U)
82
83 /* Host Control Registers : Host interrupt status */
84 #define CARD_INT_STATUS_REG 0x28
85
86 /* Card Control Registers : Card I/O ready */
87 #define CARD_IO_READY (0x1U << 3)
88 /* Card Control Registers : Download card ready */
89 #define DN_LD_CARD_RDY (0x1U << 0)
90
91 /* Max retry number of CMD53 write */
92 #define MAX_WRITE_IOMEM_RETRY 2
93
94 /* SDIO Tx aggregation in progress ? */
95 #define MP_TX_AGGR_IN_PROGRESS(a) (a->mpa_tx.pkt_cnt > 0)
96
97 /* SDIO Tx aggregation buffer room for next packet ? */
98 #define MP_TX_AGGR_BUF_HAS_ROOM(a, len) ((a->mpa_tx.buf_len+len) \
99 <= a->mpa_tx.buf_size)
100
101 /* Copy current packet (SDIO Tx aggregation buffer) to SDIO buffer */
102 #define MP_TX_AGGR_BUF_PUT(a, payload, pkt_len, port) do { \
103 memmove(&a->mpa_tx.buf[a->mpa_tx.buf_len], \
104 payload, pkt_len); \
105 a->mpa_tx.buf_len += pkt_len; \
106 if (!a->mpa_tx.pkt_cnt) \
107 a->mpa_tx.start_port = port; \
108 if (a->mpa_tx.start_port <= port) \
109 a->mpa_tx.ports |= (1<<(a->mpa_tx.pkt_cnt)); \
110 else \
111 a->mpa_tx.ports |= (1<<(a->mpa_tx.pkt_cnt+1+ \
112 (a->max_ports - \
113 a->mp_end_port))); \
114 a->mpa_tx.pkt_cnt++; \
115 } while (0)
116
117 /* SDIO Tx aggregation limit ? */
118 #define MP_TX_AGGR_PKT_LIMIT_REACHED(a) \
119 (a->mpa_tx.pkt_cnt == a->mpa_tx.pkt_aggr_limit)
120
121 /* Reset SDIO Tx aggregation buffer parameters */
122 #define MP_TX_AGGR_BUF_RESET(a) do { \
123 a->mpa_tx.pkt_cnt = 0; \
124 a->mpa_tx.buf_len = 0; \
125 a->mpa_tx.ports = 0; \
126 a->mpa_tx.start_port = 0; \
127 } while (0)
128
129 /* SDIO Rx aggregation limit ? */
130 #define MP_RX_AGGR_PKT_LIMIT_REACHED(a) \
131 (a->mpa_rx.pkt_cnt == a->mpa_rx.pkt_aggr_limit)
132
133 /* SDIO Rx aggregation in progress ? */
134 #define MP_RX_AGGR_IN_PROGRESS(a) (a->mpa_rx.pkt_cnt > 0)
135
136 /* SDIO Rx aggregation buffer room for next packet ? */
137 #define MP_RX_AGGR_BUF_HAS_ROOM(a, rx_len) \
138 ((a->mpa_rx.buf_len+rx_len) <= a->mpa_rx.buf_size)
139
140 /* Reset SDIO Rx aggregation buffer parameters */
141 #define MP_RX_AGGR_BUF_RESET(a) do { \
142 a->mpa_rx.pkt_cnt = 0; \
143 a->mpa_rx.buf_len = 0; \
144 a->mpa_rx.ports = 0; \
145 a->mpa_rx.start_port = 0; \
146 } while (0)
147
148 /* data structure for SDIO MPA TX */
149 struct mwifiex_sdio_mpa_tx {
150 /* multiport tx aggregation buffer pointer */
151 u8 *buf;
152 u32 buf_len;
153 u32 pkt_cnt;
154 u32 ports;
155 u16 start_port;
156 u8 enabled;
157 u32 buf_size;
158 u32 pkt_aggr_limit;
159 };
160
161 struct mwifiex_sdio_mpa_rx {
162 u8 *buf;
163 u32 buf_len;
164 u32 pkt_cnt;
165 u32 ports;
166 u16 start_port;
167
168 struct sk_buff **skb_arr;
169 u32 *len_arr;
170
171 u8 enabled;
172 u32 buf_size;
173 u32 pkt_aggr_limit;
174 };
175
176 int mwifiex_bus_register(void);
177 void mwifiex_bus_unregister(void);
178
179 struct mwifiex_sdio_card_reg {
180 u8 start_rd_port;
181 u8 start_wr_port;
182 u8 base_0_reg;
183 u8 base_1_reg;
184 u8 poll_reg;
185 u8 host_int_enable;
186 u8 host_int_rsr_reg;
187 u8 host_int_status_reg;
188 u8 host_int_mask_reg;
189 u8 host_strap_reg;
190 u8 host_strap_mask;
191 u8 host_strap_value;
192 u8 status_reg_0;
193 u8 status_reg_1;
194 u8 sdio_int_mask;
195 u32 data_port_mask;
196 u8 io_port_0_reg;
197 u8 io_port_1_reg;
198 u8 io_port_2_reg;
199 u8 max_mp_regs;
200 u8 rd_bitmap_l;
201 u8 rd_bitmap_u;
202 u8 rd_bitmap_1l;
203 u8 rd_bitmap_1u;
204 u8 wr_bitmap_l;
205 u8 wr_bitmap_u;
206 u8 wr_bitmap_1l;
207 u8 wr_bitmap_1u;
208 u8 rd_len_p0_l;
209 u8 rd_len_p0_u;
210 u8 card_misc_cfg_reg;
211 u8 card_cfg_2_1_reg;
212 u8 cmd_rd_len_0;
213 u8 cmd_rd_len_1;
214 u8 cmd_rd_len_2;
215 u8 cmd_rd_len_3;
216 u8 cmd_cfg_0;
217 u8 cmd_cfg_1;
218 u8 cmd_cfg_2;
219 u8 cmd_cfg_3;
220 u8 fw_dump_host_ready;
221 u8 fw_dump_ctrl;
222 u8 fw_dump_start;
223 u8 fw_dump_end;
224 u8 func1_dump_reg_start;
225 u8 func1_dump_reg_end;
226 u8 func1_scratch_reg;
227 u8 func1_spec_reg_num;
228 u8 func1_spec_reg_table[MWIFIEX_MAX_FUNC2_REG_NUM];
229 };
230
231 struct sdio_mmc_card {
232 struct sdio_func *func;
233 struct mwifiex_adapter *adapter;
234
235 struct completion fw_done;
236 const char *firmware;
237 const char *firmware_sdiouart;
238 const struct mwifiex_sdio_card_reg *reg;
239 u8 max_ports;
240 u8 mp_agg_pkt_limit;
241 u16 tx_buf_size;
242 u32 mp_tx_agg_buf_size;
243 u32 mp_rx_agg_buf_size;
244
245 u32 mp_rd_bitmap;
246 u32 mp_wr_bitmap;
247
248 u16 mp_end_port;
249 u32 mp_data_port_mask;
250
251 u8 curr_rd_port;
252 u8 curr_wr_port;
253
254 u8 *mp_regs;
255 bool supports_sdio_new_mode;
256 bool has_control_mask;
257 bool can_dump_fw;
258 bool fw_dump_enh;
259 bool can_auto_tdls;
260 bool can_ext_scan;
261
262 struct mwifiex_sdio_mpa_tx mpa_tx;
263 struct mwifiex_sdio_mpa_rx mpa_rx;
264
265 struct work_struct work;
266 unsigned long work_flags;
267 };
268
269 struct mwifiex_sdio_device {
270 const char *firmware;
271 const char *firmware_sdiouart;
272 const struct mwifiex_sdio_card_reg *reg;
273 u8 max_ports;
274 u8 mp_agg_pkt_limit;
275 u16 tx_buf_size;
276 u32 mp_tx_agg_buf_size;
277 u32 mp_rx_agg_buf_size;
278 bool supports_sdio_new_mode;
279 bool has_control_mask;
280 bool can_dump_fw;
281 bool fw_dump_enh;
282 bool can_auto_tdls;
283 bool can_ext_scan;
284 };
285
286 /*
287 * .cmdrsp_complete handler
288 */
mwifiex_sdio_cmdrsp_complete(struct mwifiex_adapter * adapter,struct sk_buff * skb)289 static inline int mwifiex_sdio_cmdrsp_complete(struct mwifiex_adapter *adapter,
290 struct sk_buff *skb)
291 {
292 dev_kfree_skb_any(skb);
293 return 0;
294 }
295
296 /*
297 * .event_complete handler
298 */
mwifiex_sdio_event_complete(struct mwifiex_adapter * adapter,struct sk_buff * skb)299 static inline int mwifiex_sdio_event_complete(struct mwifiex_adapter *adapter,
300 struct sk_buff *skb)
301 {
302 dev_kfree_skb_any(skb);
303 return 0;
304 }
305
306 static inline bool
mp_rx_aggr_port_limit_reached(struct sdio_mmc_card * card)307 mp_rx_aggr_port_limit_reached(struct sdio_mmc_card *card)
308 {
309 u8 tmp;
310
311 if (card->curr_rd_port < card->mpa_rx.start_port) {
312 if (card->supports_sdio_new_mode)
313 tmp = card->mp_end_port >> 1;
314 else
315 tmp = card->mp_agg_pkt_limit;
316
317 if (((card->max_ports - card->mpa_rx.start_port) +
318 card->curr_rd_port) >= tmp)
319 return true;
320 }
321
322 if (!card->supports_sdio_new_mode)
323 return false;
324
325 if ((card->curr_rd_port - card->mpa_rx.start_port) >=
326 (card->mp_end_port >> 1))
327 return true;
328
329 return false;
330 }
331
332 static inline bool
mp_tx_aggr_port_limit_reached(struct sdio_mmc_card * card)333 mp_tx_aggr_port_limit_reached(struct sdio_mmc_card *card)
334 {
335 u16 tmp;
336
337 if (card->curr_wr_port < card->mpa_tx.start_port) {
338 if (card->supports_sdio_new_mode)
339 tmp = card->mp_end_port >> 1;
340 else
341 tmp = card->mp_agg_pkt_limit;
342
343 if (((card->max_ports - card->mpa_tx.start_port) +
344 card->curr_wr_port) >= tmp)
345 return true;
346 }
347
348 if (!card->supports_sdio_new_mode)
349 return false;
350
351 if ((card->curr_wr_port - card->mpa_tx.start_port) >=
352 (card->mp_end_port >> 1))
353 return true;
354
355 return false;
356 }
357
358 /* Prepare to copy current packet from card to SDIO Rx aggregation buffer */
mp_rx_aggr_setup(struct sdio_mmc_card * card,u16 rx_len,u8 port)359 static inline void mp_rx_aggr_setup(struct sdio_mmc_card *card,
360 u16 rx_len, u8 port)
361 {
362 card->mpa_rx.buf_len += rx_len;
363
364 if (!card->mpa_rx.pkt_cnt)
365 card->mpa_rx.start_port = port;
366
367 if (card->supports_sdio_new_mode) {
368 card->mpa_rx.ports |= (1 << port);
369 } else {
370 if (card->mpa_rx.start_port <= port)
371 card->mpa_rx.ports |= 1 << (card->mpa_rx.pkt_cnt);
372 else
373 card->mpa_rx.ports |= 1 << (card->mpa_rx.pkt_cnt + 1);
374 }
375 card->mpa_rx.skb_arr[card->mpa_rx.pkt_cnt] = NULL;
376 card->mpa_rx.len_arr[card->mpa_rx.pkt_cnt] = rx_len;
377 card->mpa_rx.pkt_cnt++;
378 }
379 #endif /* _MWIFIEX_SDIO_H */
380
