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 	bool fw_ready_extra_delay;
262 
263 	struct mwifiex_sdio_mpa_tx mpa_tx;
264 	struct mwifiex_sdio_mpa_rx mpa_rx;
265 
266 	struct work_struct work;
267 	unsigned long work_flags;
268 };
269 
270 struct mwifiex_sdio_device {
271 	const char *firmware;
272 	const char *firmware_sdiouart;
273 	const struct mwifiex_sdio_card_reg *reg;
274 	u8 max_ports;
275 	u8 mp_agg_pkt_limit;
276 	u16 tx_buf_size;
277 	u32 mp_tx_agg_buf_size;
278 	u32 mp_rx_agg_buf_size;
279 	bool supports_sdio_new_mode;
280 	bool has_control_mask;
281 	bool can_dump_fw;
282 	bool fw_dump_enh;
283 	bool can_auto_tdls;
284 	bool can_ext_scan;
285 	bool fw_ready_extra_delay;
286 };
287 
288 /*
289  * .cmdrsp_complete handler
290  */
mwifiex_sdio_cmdrsp_complete(struct mwifiex_adapter * adapter,struct sk_buff * skb)291 static inline int mwifiex_sdio_cmdrsp_complete(struct mwifiex_adapter *adapter,
292 					       struct sk_buff *skb)
293 {
294 	dev_kfree_skb_any(skb);
295 	return 0;
296 }
297 
298 /*
299  * .event_complete handler
300  */
mwifiex_sdio_event_complete(struct mwifiex_adapter * adapter,struct sk_buff * skb)301 static inline int mwifiex_sdio_event_complete(struct mwifiex_adapter *adapter,
302 					      struct sk_buff *skb)
303 {
304 	dev_kfree_skb_any(skb);
305 	return 0;
306 }
307 
308 static inline bool
mp_rx_aggr_port_limit_reached(struct sdio_mmc_card * card)309 mp_rx_aggr_port_limit_reached(struct sdio_mmc_card *card)
310 {
311 	u8 tmp;
312 
313 	if (card->curr_rd_port < card->mpa_rx.start_port) {
314 		if (card->supports_sdio_new_mode)
315 			tmp = card->mp_end_port >> 1;
316 		else
317 			tmp = card->mp_agg_pkt_limit;
318 
319 		if (((card->max_ports - card->mpa_rx.start_port) +
320 		    card->curr_rd_port) >= tmp)
321 			return true;
322 	}
323 
324 	if (!card->supports_sdio_new_mode)
325 		return false;
326 
327 	if ((card->curr_rd_port - card->mpa_rx.start_port) >=
328 	    (card->mp_end_port >> 1))
329 		return true;
330 
331 	return false;
332 }
333 
334 static inline bool
mp_tx_aggr_port_limit_reached(struct sdio_mmc_card * card)335 mp_tx_aggr_port_limit_reached(struct sdio_mmc_card *card)
336 {
337 	u16 tmp;
338 
339 	if (card->curr_wr_port < card->mpa_tx.start_port) {
340 		if (card->supports_sdio_new_mode)
341 			tmp = card->mp_end_port >> 1;
342 		else
343 			tmp = card->mp_agg_pkt_limit;
344 
345 		if (((card->max_ports - card->mpa_tx.start_port) +
346 		    card->curr_wr_port) >= tmp)
347 			return true;
348 	}
349 
350 	if (!card->supports_sdio_new_mode)
351 		return false;
352 
353 	if ((card->curr_wr_port - card->mpa_tx.start_port) >=
354 	    (card->mp_end_port >> 1))
355 		return true;
356 
357 	return false;
358 }
359 
360 /* 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)361 static inline void mp_rx_aggr_setup(struct sdio_mmc_card *card,
362 				    u16 rx_len, u8 port)
363 {
364 	card->mpa_rx.buf_len += rx_len;
365 
366 	if (!card->mpa_rx.pkt_cnt)
367 		card->mpa_rx.start_port = port;
368 
369 	if (card->supports_sdio_new_mode) {
370 		card->mpa_rx.ports |= (1 << port);
371 	} else {
372 		if (card->mpa_rx.start_port <= port)
373 			card->mpa_rx.ports |= 1 << (card->mpa_rx.pkt_cnt);
374 		else
375 			card->mpa_rx.ports |= 1 << (card->mpa_rx.pkt_cnt + 1);
376 	}
377 	card->mpa_rx.skb_arr[card->mpa_rx.pkt_cnt] = NULL;
378 	card->mpa_rx.len_arr[card->mpa_rx.pkt_cnt] = rx_len;
379 	card->mpa_rx.pkt_cnt++;
380 }
381 #endif /* _MWIFIEX_SDIO_H */
382