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1/*
2 * Copyright (c) 2014 Redpine Signals Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18
19#include <linux/module.h>
20#include <linux/firmware.h>
21#include <net/rsi_91x.h>
22#include "rsi_mgmt.h"
23#include "rsi_common.h"
24#include "rsi_coex.h"
25#include "rsi_hal.h"
26#include "rsi_usb.h"
27
28u32 rsi_zone_enabled = /* INFO_ZONE |
29 INIT_ZONE |
30 MGMT_TX_ZONE |
31 MGMT_RX_ZONE |
32 DATA_TX_ZONE |
33 DATA_RX_ZONE |
34 FSM_ZONE |
35 ISR_ZONE | */
36 ERR_ZONE |
37 0;
38EXPORT_SYMBOL_GPL(rsi_zone_enabled);
39
40#ifdef CONFIG_RSI_COEX
41static struct rsi_proto_ops g_proto_ops = {
42 .coex_send_pkt = rsi_coex_send_pkt,
43 .get_host_intf = rsi_get_host_intf,
44 .set_bt_context = rsi_set_bt_context,
45};
46#endif
47
48/**
49 * rsi_dbg() - This function outputs informational messages.
50 * @zone: Zone of interest for output message.
51 * @fmt: printf-style format for output message.
52 *
53 * Return: none
54 */
55void rsi_dbg(u32 zone, const char *fmt, ...)
56{
57 struct va_format vaf;
58 va_list args;
59
60 va_start(args, fmt);
61
62 vaf.fmt = fmt;
63 vaf.va = &args;
64
65 if (zone & rsi_zone_enabled)
66 pr_info("%pV", &vaf);
67 va_end(args);
68}
69EXPORT_SYMBOL_GPL(rsi_dbg);
70
71static char *opmode_str(int oper_mode)
72{
73 switch (oper_mode) {
74 case DEV_OPMODE_WIFI_ALONE:
75 return "Wi-Fi alone";
76 case DEV_OPMODE_BT_ALONE:
77 return "BT EDR alone";
78 case DEV_OPMODE_BT_LE_ALONE:
79 return "BT LE alone";
80 case DEV_OPMODE_BT_DUAL:
81 return "BT Dual";
82 case DEV_OPMODE_STA_BT:
83 return "Wi-Fi STA + BT EDR";
84 case DEV_OPMODE_STA_BT_LE:
85 return "Wi-Fi STA + BT LE";
86 case DEV_OPMODE_STA_BT_DUAL:
87 return "Wi-Fi STA + BT DUAL";
88 case DEV_OPMODE_AP_BT:
89 return "Wi-Fi AP + BT EDR";
90 case DEV_OPMODE_AP_BT_DUAL:
91 return "Wi-Fi AP + BT DUAL";
92 }
93
94 return "Unknown";
95}
96
97void rsi_print_version(struct rsi_common *common)
98{
99 rsi_dbg(ERR_ZONE, "================================================\n");
100 rsi_dbg(ERR_ZONE, "================ RSI Version Info ==============\n");
101 rsi_dbg(ERR_ZONE, "================================================\n");
102 rsi_dbg(ERR_ZONE, "FW Version\t: %d.%d.%d\n",
103 common->lmac_ver.major, common->lmac_ver.minor,
104 common->lmac_ver.release_num);
105 rsi_dbg(ERR_ZONE, "Operating mode\t: %d [%s]",
106 common->oper_mode, opmode_str(common->oper_mode));
107 rsi_dbg(ERR_ZONE, "Firmware file\t: %s", common->priv->fw_file_name);
108 rsi_dbg(ERR_ZONE, "================================================\n");
109}
110
111/**
112 * rsi_prepare_skb() - This function prepares the skb.
113 * @common: Pointer to the driver private structure.
114 * @buffer: Pointer to the packet data.
115 * @pkt_len: Length of the packet.
116 * @extended_desc: Extended descriptor.
117 *
118 * Return: Successfully skb.
119 */
120static struct sk_buff *rsi_prepare_skb(struct rsi_common *common,
121 u8 *buffer,
122 u32 pkt_len,
123 u8 extended_desc)
124{
125 struct sk_buff *skb = NULL;
126 u8 payload_offset;
127
128 if (WARN(!pkt_len, "%s: Dummy pkt received", __func__))
129 return NULL;
130
131 if (pkt_len > (RSI_RCV_BUFFER_LEN * 4)) {
132 rsi_dbg(ERR_ZONE, "%s: Pkt size > max rx buf size %d\n",
133 __func__, pkt_len);
134 pkt_len = RSI_RCV_BUFFER_LEN * 4;
135 }
136
137 pkt_len -= extended_desc;
138 skb = dev_alloc_skb(pkt_len + FRAME_DESC_SZ);
139 if (skb == NULL)
140 return NULL;
141
142 payload_offset = (extended_desc + FRAME_DESC_SZ);
143 skb_put(skb, pkt_len);
144 memcpy((skb->data), (buffer + payload_offset), skb->len);
145
146 return skb;
147}
148
149/**
150 * rsi_read_pkt() - This function reads frames from the card.
151 * @common: Pointer to the driver private structure.
152 * @rx_pkt: Received pkt.
153 * @rcv_pkt_len: Received pkt length. In case of USB it is 0.
154 *
155 * Return: 0 on success, -1 on failure.
156 */
157int rsi_read_pkt(struct rsi_common *common, u8 *rx_pkt, s32 rcv_pkt_len)
158{
159 u8 *frame_desc = NULL, extended_desc = 0;
160 u32 index, length = 0, queueno = 0;
161 u16 actual_length = 0, offset;
162 struct sk_buff *skb = NULL;
163#ifdef CONFIG_RSI_COEX
164 u8 bt_pkt_type;
165#endif
166
167 index = 0;
168 do {
169 frame_desc = &rx_pkt[index];
170 actual_length = *(u16 *)&frame_desc[0];
171 offset = *(u16 *)&frame_desc[2];
172 if (!rcv_pkt_len && offset >
173 RSI_MAX_RX_USB_PKT_SIZE - FRAME_DESC_SZ)
174 goto fail;
175
176 queueno = rsi_get_queueno(frame_desc, offset);
177 length = rsi_get_length(frame_desc, offset);
178
179 /* Extended descriptor is valid for WLAN queues only */
180 if (queueno == RSI_WIFI_DATA_Q || queueno == RSI_WIFI_MGMT_Q)
181 extended_desc = rsi_get_extended_desc(frame_desc,
182 offset);
183
184 switch (queueno) {
185 case RSI_COEX_Q:
186#ifdef CONFIG_RSI_COEX
187 if (common->coex_mode > 1)
188 rsi_coex_recv_pkt(common, frame_desc + offset);
189 else
190#endif
191 rsi_mgmt_pkt_recv(common,
192 (frame_desc + offset));
193 break;
194
195 case RSI_WIFI_DATA_Q:
196 skb = rsi_prepare_skb(common,
197 (frame_desc + offset),
198 length,
199 extended_desc);
200 if (skb == NULL)
201 goto fail;
202
203 rsi_indicate_pkt_to_os(common, skb);
204 break;
205
206 case RSI_WIFI_MGMT_Q:
207 rsi_mgmt_pkt_recv(common, (frame_desc + offset));
208 break;
209
210#ifdef CONFIG_RSI_COEX
211 case RSI_BT_MGMT_Q:
212 case RSI_BT_DATA_Q:
213#define BT_RX_PKT_TYPE_OFST 14
214#define BT_CARD_READY_IND 0x89
215 bt_pkt_type = frame_desc[offset + BT_RX_PKT_TYPE_OFST];
216 if (bt_pkt_type == BT_CARD_READY_IND) {
217 rsi_dbg(INFO_ZONE, "BT Card ready recvd\n");
218 if (common->fsm_state == FSM_MAC_INIT_DONE)
219 rsi_attach_bt(common);
220 else
221 common->bt_defer_attach = true;
222 } else {
223 if (common->bt_adapter)
224 rsi_bt_ops.recv_pkt(common->bt_adapter,
225 frame_desc + offset);
226 }
227 break;
228#endif
229
230 default:
231 rsi_dbg(ERR_ZONE, "%s: pkt from invalid queue: %d\n",
232 __func__, queueno);
233 goto fail;
234 }
235
236 index += actual_length;
237 rcv_pkt_len -= actual_length;
238 } while (rcv_pkt_len > 0);
239
240 return 0;
241fail:
242 return -EINVAL;
243}
244EXPORT_SYMBOL_GPL(rsi_read_pkt);
245
246/**
247 * rsi_tx_scheduler_thread() - This function is a kernel thread to send the
248 * packets to the device.
249 * @common: Pointer to the driver private structure.
250 *
251 * Return: None.
252 */
253static void rsi_tx_scheduler_thread(struct rsi_common *common)
254{
255 struct rsi_hw *adapter = common->priv;
256 u32 timeout = EVENT_WAIT_FOREVER;
257
258 do {
259 if (adapter->determine_event_timeout)
260 timeout = adapter->determine_event_timeout(adapter);
261 rsi_wait_event(&common->tx_thread.event, timeout);
262 rsi_reset_event(&common->tx_thread.event);
263
264 if (common->init_done)
265 rsi_core_qos_processor(common);
266 } while (atomic_read(&common->tx_thread.thread_done) == 0);
267 kthread_complete_and_exit(&common->tx_thread.completion, 0);
268}
269
270#ifdef CONFIG_RSI_COEX
271enum rsi_host_intf rsi_get_host_intf(void *priv)
272{
273 struct rsi_common *common = priv;
274
275 return common->priv->rsi_host_intf;
276}
277
278void rsi_set_bt_context(void *priv, void *bt_context)
279{
280 struct rsi_common *common = priv;
281
282 common->bt_adapter = bt_context;
283}
284#endif
285
286void rsi_attach_bt(struct rsi_common *common)
287{
288#ifdef CONFIG_RSI_COEX
289 if (rsi_bt_ops.attach(common, &g_proto_ops))
290 rsi_dbg(ERR_ZONE,
291 "Failed to attach BT module\n");
292#endif
293}
294
295/**
296 * rsi_91x_init() - This function initializes os interface operations.
297 * @oper_mode: One of DEV_OPMODE_*.
298 *
299 * Return: Pointer to the adapter structure on success, NULL on failure .
300 */
301struct rsi_hw *rsi_91x_init(u16 oper_mode)
302{
303 struct rsi_hw *adapter = NULL;
304 struct rsi_common *common = NULL;
305 u8 ii = 0;
306
307 adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
308 if (!adapter)
309 return NULL;
310
311 adapter->priv = kzalloc(sizeof(*common), GFP_KERNEL);
312 if (adapter->priv == NULL) {
313 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of memory\n",
314 __func__);
315 kfree(adapter);
316 return NULL;
317 } else {
318 common = adapter->priv;
319 common->priv = adapter;
320 }
321
322 for (ii = 0; ii < NUM_SOFT_QUEUES; ii++)
323 skb_queue_head_init(&common->tx_queue[ii]);
324
325 rsi_init_event(&common->tx_thread.event);
326 mutex_init(&common->mutex);
327 mutex_init(&common->tx_lock);
328 mutex_init(&common->rx_lock);
329 mutex_init(&common->tx_bus_mutex);
330
331 if (rsi_create_kthread(common,
332 &common->tx_thread,
333 rsi_tx_scheduler_thread,
334 "Tx-Thread")) {
335 rsi_dbg(ERR_ZONE, "%s: Unable to init tx thrd\n", __func__);
336 goto err;
337 }
338
339 rsi_default_ps_params(adapter);
340 init_bgscan_params(common);
341 spin_lock_init(&adapter->ps_lock);
342 timer_setup(&common->roc_timer, rsi_roc_timeout, 0);
343 init_completion(&common->wlan_init_completion);
344 adapter->device_model = RSI_DEV_9113;
345 common->oper_mode = oper_mode;
346
347 /* Determine coex mode */
348 switch (common->oper_mode) {
349 case DEV_OPMODE_STA_BT_DUAL:
350 case DEV_OPMODE_STA_BT:
351 case DEV_OPMODE_STA_BT_LE:
352 case DEV_OPMODE_BT_ALONE:
353 case DEV_OPMODE_BT_LE_ALONE:
354 case DEV_OPMODE_BT_DUAL:
355 common->coex_mode = 2;
356 break;
357 case DEV_OPMODE_AP_BT_DUAL:
358 case DEV_OPMODE_AP_BT:
359 common->coex_mode = 4;
360 break;
361 case DEV_OPMODE_WIFI_ALONE:
362 common->coex_mode = 1;
363 break;
364 default:
365 common->oper_mode = 1;
366 common->coex_mode = 1;
367 }
368 rsi_dbg(INFO_ZONE, "%s: oper_mode = %d, coex_mode = %d\n",
369 __func__, common->oper_mode, common->coex_mode);
370
371 adapter->device_model = RSI_DEV_9113;
372#ifdef CONFIG_RSI_COEX
373 if (common->coex_mode > 1) {
374 if (rsi_coex_attach(common)) {
375 rsi_dbg(ERR_ZONE, "Failed to init coex module\n");
376 rsi_kill_thread(&common->tx_thread);
377 goto err;
378 }
379 }
380#endif
381
382 common->init_done = true;
383 return adapter;
384
385err:
386 kfree(common);
387 kfree(adapter);
388 return NULL;
389}
390EXPORT_SYMBOL_GPL(rsi_91x_init);
391
392/**
393 * rsi_91x_deinit() - This function de-intializes os intf operations.
394 * @adapter: Pointer to the adapter structure.
395 *
396 * Return: None.
397 */
398void rsi_91x_deinit(struct rsi_hw *adapter)
399{
400 struct rsi_common *common = adapter->priv;
401 u8 ii;
402
403 rsi_dbg(INFO_ZONE, "%s: Performing deinit os ops\n", __func__);
404
405 rsi_kill_thread(&common->tx_thread);
406
407 for (ii = 0; ii < NUM_SOFT_QUEUES; ii++)
408 skb_queue_purge(&common->tx_queue[ii]);
409
410#ifdef CONFIG_RSI_COEX
411 if (common->coex_mode > 1) {
412 if (common->bt_adapter) {
413 rsi_bt_ops.detach(common->bt_adapter);
414 common->bt_adapter = NULL;
415 }
416 rsi_coex_detach(common);
417 }
418#endif
419
420 common->init_done = false;
421
422 kfree(common);
423 kfree(adapter->rsi_dev);
424 kfree(adapter);
425}
426EXPORT_SYMBOL_GPL(rsi_91x_deinit);
427
428/**
429 * rsi_91x_hal_module_init() - This function is invoked when the module is
430 * loaded into the kernel.
431 * It registers the client driver.
432 * @void: Void.
433 *
434 * Return: 0 on success, -1 on failure.
435 */
436static int rsi_91x_hal_module_init(void)
437{
438 rsi_dbg(INIT_ZONE, "%s: Module init called\n", __func__);
439 return 0;
440}
441
442/**
443 * rsi_91x_hal_module_exit() - This function is called at the time of
444 * removing/unloading the module.
445 * It unregisters the client driver.
446 * @void: Void.
447 *
448 * Return: None.
449 */
450static void rsi_91x_hal_module_exit(void)
451{
452 rsi_dbg(INIT_ZONE, "%s: Module exit called\n", __func__);
453}
454
455module_init(rsi_91x_hal_module_init);
456module_exit(rsi_91x_hal_module_exit);
457MODULE_AUTHOR("Redpine Signals Inc");
458MODULE_DESCRIPTION("Station driver for RSI 91x devices");
459MODULE_VERSION("0.1");
460MODULE_LICENSE("Dual BSD/GPL");
1/**
2 * Copyright (c) 2014 Redpine Signals Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18
19#include <linux/module.h>
20#include <linux/firmware.h>
21#include <net/rsi_91x.h>
22#include "rsi_mgmt.h"
23#include "rsi_common.h"
24#include "rsi_coex.h"
25#include "rsi_hal.h"
26
27u32 rsi_zone_enabled = /* INFO_ZONE |
28 INIT_ZONE |
29 MGMT_TX_ZONE |
30 MGMT_RX_ZONE |
31 DATA_TX_ZONE |
32 DATA_RX_ZONE |
33 FSM_ZONE |
34 ISR_ZONE | */
35 ERR_ZONE |
36 0;
37EXPORT_SYMBOL_GPL(rsi_zone_enabled);
38
39#ifdef CONFIG_RSI_COEX
40static struct rsi_proto_ops g_proto_ops = {
41 .coex_send_pkt = rsi_coex_send_pkt,
42 .get_host_intf = rsi_get_host_intf,
43 .set_bt_context = rsi_set_bt_context,
44};
45#endif
46
47/**
48 * rsi_dbg() - This function outputs informational messages.
49 * @zone: Zone of interest for output message.
50 * @fmt: printf-style format for output message.
51 *
52 * Return: none
53 */
54void rsi_dbg(u32 zone, const char *fmt, ...)
55{
56 struct va_format vaf;
57 va_list args;
58
59 va_start(args, fmt);
60
61 vaf.fmt = fmt;
62 vaf.va = &args;
63
64 if (zone & rsi_zone_enabled)
65 pr_info("%pV", &vaf);
66 va_end(args);
67}
68EXPORT_SYMBOL_GPL(rsi_dbg);
69
70static char *opmode_str(int oper_mode)
71{
72 switch (oper_mode) {
73 case DEV_OPMODE_WIFI_ALONE:
74 return "Wi-Fi alone";
75 case DEV_OPMODE_BT_ALONE:
76 return "BT EDR alone";
77 case DEV_OPMODE_BT_LE_ALONE:
78 return "BT LE alone";
79 case DEV_OPMODE_BT_DUAL:
80 return "BT Dual";
81 case DEV_OPMODE_STA_BT:
82 return "Wi-Fi STA + BT EDR";
83 case DEV_OPMODE_STA_BT_LE:
84 return "Wi-Fi STA + BT LE";
85 case DEV_OPMODE_STA_BT_DUAL:
86 return "Wi-Fi STA + BT DUAL";
87 case DEV_OPMODE_AP_BT:
88 return "Wi-Fi AP + BT EDR";
89 case DEV_OPMODE_AP_BT_DUAL:
90 return "Wi-Fi AP + BT DUAL";
91 }
92
93 return "Unknown";
94}
95
96void rsi_print_version(struct rsi_common *common)
97{
98 rsi_dbg(ERR_ZONE, "================================================\n");
99 rsi_dbg(ERR_ZONE, "================ RSI Version Info ==============\n");
100 rsi_dbg(ERR_ZONE, "================================================\n");
101 rsi_dbg(ERR_ZONE, "FW Version\t: %d.%d.%d\n",
102 common->lmac_ver.major, common->lmac_ver.minor,
103 common->lmac_ver.release_num);
104 rsi_dbg(ERR_ZONE, "Operating mode\t: %d [%s]",
105 common->oper_mode, opmode_str(common->oper_mode));
106 rsi_dbg(ERR_ZONE, "Firmware file\t: %s", common->priv->fw_file_name);
107 rsi_dbg(ERR_ZONE, "================================================\n");
108}
109
110/**
111 * rsi_prepare_skb() - This function prepares the skb.
112 * @common: Pointer to the driver private structure.
113 * @buffer: Pointer to the packet data.
114 * @pkt_len: Length of the packet.
115 * @extended_desc: Extended descriptor.
116 *
117 * Return: Successfully skb.
118 */
119static struct sk_buff *rsi_prepare_skb(struct rsi_common *common,
120 u8 *buffer,
121 u32 pkt_len,
122 u8 extended_desc)
123{
124 struct sk_buff *skb = NULL;
125 u8 payload_offset;
126
127 if (WARN(!pkt_len, "%s: Dummy pkt received", __func__))
128 return NULL;
129
130 if (pkt_len > (RSI_RCV_BUFFER_LEN * 4)) {
131 rsi_dbg(ERR_ZONE, "%s: Pkt size > max rx buf size %d\n",
132 __func__, pkt_len);
133 pkt_len = RSI_RCV_BUFFER_LEN * 4;
134 }
135
136 pkt_len -= extended_desc;
137 skb = dev_alloc_skb(pkt_len + FRAME_DESC_SZ);
138 if (skb == NULL)
139 return NULL;
140
141 payload_offset = (extended_desc + FRAME_DESC_SZ);
142 skb_put(skb, pkt_len);
143 memcpy((skb->data), (buffer + payload_offset), skb->len);
144
145 return skb;
146}
147
148/**
149 * rsi_read_pkt() - This function reads frames from the card.
150 * @common: Pointer to the driver private structure.
151 * @rcv_pkt_len: Received pkt length. In case of USB it is 0.
152 *
153 * Return: 0 on success, -1 on failure.
154 */
155int rsi_read_pkt(struct rsi_common *common, u8 *rx_pkt, s32 rcv_pkt_len)
156{
157 u8 *frame_desc = NULL, extended_desc = 0;
158 u32 index, length = 0, queueno = 0;
159 u16 actual_length = 0, offset;
160 struct sk_buff *skb = NULL;
161#ifdef CONFIG_RSI_COEX
162 u8 bt_pkt_type;
163#endif
164
165 index = 0;
166 do {
167 frame_desc = &rx_pkt[index];
168 actual_length = *(u16 *)&frame_desc[0];
169 offset = *(u16 *)&frame_desc[2];
170
171 queueno = rsi_get_queueno(frame_desc, offset);
172 length = rsi_get_length(frame_desc, offset);
173
174 /* Extended descriptor is valid for WLAN queues only */
175 if (queueno == RSI_WIFI_DATA_Q || queueno == RSI_WIFI_MGMT_Q)
176 extended_desc = rsi_get_extended_desc(frame_desc,
177 offset);
178
179 switch (queueno) {
180 case RSI_COEX_Q:
181#ifdef CONFIG_RSI_COEX
182 if (common->coex_mode > 1)
183 rsi_coex_recv_pkt(common, frame_desc + offset);
184 else
185#endif
186 rsi_mgmt_pkt_recv(common,
187 (frame_desc + offset));
188 break;
189
190 case RSI_WIFI_DATA_Q:
191 skb = rsi_prepare_skb(common,
192 (frame_desc + offset),
193 length,
194 extended_desc);
195 if (skb == NULL)
196 goto fail;
197
198 rsi_indicate_pkt_to_os(common, skb);
199 break;
200
201 case RSI_WIFI_MGMT_Q:
202 rsi_mgmt_pkt_recv(common, (frame_desc + offset));
203 break;
204
205#ifdef CONFIG_RSI_COEX
206 case RSI_BT_MGMT_Q:
207 case RSI_BT_DATA_Q:
208#define BT_RX_PKT_TYPE_OFST 14
209#define BT_CARD_READY_IND 0x89
210 bt_pkt_type = frame_desc[offset + BT_RX_PKT_TYPE_OFST];
211 if (bt_pkt_type == BT_CARD_READY_IND) {
212 rsi_dbg(INFO_ZONE, "BT Card ready recvd\n");
213 if (rsi_bt_ops.attach(common, &g_proto_ops))
214 rsi_dbg(ERR_ZONE,
215 "Failed to attach BT module\n");
216 } else {
217 if (common->bt_adapter)
218 rsi_bt_ops.recv_pkt(common->bt_adapter,
219 frame_desc + offset);
220 }
221 break;
222#endif
223
224 default:
225 rsi_dbg(ERR_ZONE, "%s: pkt from invalid queue: %d\n",
226 __func__, queueno);
227 goto fail;
228 }
229
230 index += actual_length;
231 rcv_pkt_len -= actual_length;
232 } while (rcv_pkt_len > 0);
233
234 return 0;
235fail:
236 return -EINVAL;
237}
238EXPORT_SYMBOL_GPL(rsi_read_pkt);
239
240/**
241 * rsi_tx_scheduler_thread() - This function is a kernel thread to send the
242 * packets to the device.
243 * @common: Pointer to the driver private structure.
244 *
245 * Return: None.
246 */
247static void rsi_tx_scheduler_thread(struct rsi_common *common)
248{
249 struct rsi_hw *adapter = common->priv;
250 u32 timeout = EVENT_WAIT_FOREVER;
251
252 do {
253 if (adapter->determine_event_timeout)
254 timeout = adapter->determine_event_timeout(adapter);
255 rsi_wait_event(&common->tx_thread.event, timeout);
256 rsi_reset_event(&common->tx_thread.event);
257
258 if (common->init_done)
259 rsi_core_qos_processor(common);
260 } while (atomic_read(&common->tx_thread.thread_done) == 0);
261 complete_and_exit(&common->tx_thread.completion, 0);
262}
263
264#ifdef CONFIG_RSI_COEX
265enum rsi_host_intf rsi_get_host_intf(void *priv)
266{
267 struct rsi_common *common = (struct rsi_common *)priv;
268
269 return common->priv->rsi_host_intf;
270}
271
272void rsi_set_bt_context(void *priv, void *bt_context)
273{
274 struct rsi_common *common = (struct rsi_common *)priv;
275
276 common->bt_adapter = bt_context;
277}
278#endif
279
280/**
281 * rsi_91x_init() - This function initializes os interface operations.
282 * @void: Void.
283 *
284 * Return: Pointer to the adapter structure on success, NULL on failure .
285 */
286struct rsi_hw *rsi_91x_init(u16 oper_mode)
287{
288 struct rsi_hw *adapter = NULL;
289 struct rsi_common *common = NULL;
290 u8 ii = 0;
291
292 adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
293 if (!adapter)
294 return NULL;
295
296 adapter->priv = kzalloc(sizeof(*common), GFP_KERNEL);
297 if (adapter->priv == NULL) {
298 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of memory\n",
299 __func__);
300 kfree(adapter);
301 return NULL;
302 } else {
303 common = adapter->priv;
304 common->priv = adapter;
305 }
306
307 for (ii = 0; ii < NUM_SOFT_QUEUES; ii++)
308 skb_queue_head_init(&common->tx_queue[ii]);
309
310 rsi_init_event(&common->tx_thread.event);
311 mutex_init(&common->mutex);
312 mutex_init(&common->tx_lock);
313 mutex_init(&common->rx_lock);
314 mutex_init(&common->tx_bus_mutex);
315
316 if (rsi_create_kthread(common,
317 &common->tx_thread,
318 rsi_tx_scheduler_thread,
319 "Tx-Thread")) {
320 rsi_dbg(ERR_ZONE, "%s: Unable to init tx thrd\n", __func__);
321 goto err;
322 }
323
324 rsi_default_ps_params(adapter);
325 init_bgscan_params(common);
326 spin_lock_init(&adapter->ps_lock);
327 timer_setup(&common->roc_timer, rsi_roc_timeout, 0);
328 init_completion(&common->wlan_init_completion);
329 adapter->device_model = RSI_DEV_9113;
330 common->oper_mode = oper_mode;
331
332 /* Determine coex mode */
333 switch (common->oper_mode) {
334 case DEV_OPMODE_STA_BT_DUAL:
335 case DEV_OPMODE_STA_BT:
336 case DEV_OPMODE_STA_BT_LE:
337 case DEV_OPMODE_BT_ALONE:
338 case DEV_OPMODE_BT_LE_ALONE:
339 case DEV_OPMODE_BT_DUAL:
340 common->coex_mode = 2;
341 break;
342 case DEV_OPMODE_AP_BT_DUAL:
343 case DEV_OPMODE_AP_BT:
344 common->coex_mode = 4;
345 break;
346 case DEV_OPMODE_WIFI_ALONE:
347 common->coex_mode = 1;
348 break;
349 default:
350 common->oper_mode = 1;
351 common->coex_mode = 1;
352 }
353 rsi_dbg(INFO_ZONE, "%s: oper_mode = %d, coex_mode = %d\n",
354 __func__, common->oper_mode, common->coex_mode);
355
356 adapter->device_model = RSI_DEV_9113;
357#ifdef CONFIG_RSI_COEX
358 if (common->coex_mode > 1) {
359 if (rsi_coex_attach(common)) {
360 rsi_dbg(ERR_ZONE, "Failed to init coex module\n");
361 goto err;
362 }
363 }
364#endif
365
366 common->init_done = true;
367 return adapter;
368
369err:
370 kfree(common);
371 kfree(adapter);
372 return NULL;
373}
374EXPORT_SYMBOL_GPL(rsi_91x_init);
375
376/**
377 * rsi_91x_deinit() - This function de-intializes os intf operations.
378 * @adapter: Pointer to the adapter structure.
379 *
380 * Return: None.
381 */
382void rsi_91x_deinit(struct rsi_hw *adapter)
383{
384 struct rsi_common *common = adapter->priv;
385 u8 ii;
386
387 rsi_dbg(INFO_ZONE, "%s: Performing deinit os ops\n", __func__);
388
389 rsi_kill_thread(&common->tx_thread);
390
391 for (ii = 0; ii < NUM_SOFT_QUEUES; ii++)
392 skb_queue_purge(&common->tx_queue[ii]);
393
394#ifdef CONFIG_RSI_COEX
395 if (common->coex_mode > 1) {
396 if (common->bt_adapter) {
397 rsi_bt_ops.detach(common->bt_adapter);
398 common->bt_adapter = NULL;
399 }
400 rsi_coex_detach(common);
401 }
402#endif
403
404 common->init_done = false;
405
406 kfree(common);
407 kfree(adapter->rsi_dev);
408 kfree(adapter);
409}
410EXPORT_SYMBOL_GPL(rsi_91x_deinit);
411
412/**
413 * rsi_91x_hal_module_init() - This function is invoked when the module is
414 * loaded into the kernel.
415 * It registers the client driver.
416 * @void: Void.
417 *
418 * Return: 0 on success, -1 on failure.
419 */
420static int rsi_91x_hal_module_init(void)
421{
422 rsi_dbg(INIT_ZONE, "%s: Module init called\n", __func__);
423 return 0;
424}
425
426/**
427 * rsi_91x_hal_module_exit() - This function is called at the time of
428 * removing/unloading the module.
429 * It unregisters the client driver.
430 * @void: Void.
431 *
432 * Return: None.
433 */
434static void rsi_91x_hal_module_exit(void)
435{
436 rsi_dbg(INIT_ZONE, "%s: Module exit called\n", __func__);
437}
438
439module_init(rsi_91x_hal_module_init);
440module_exit(rsi_91x_hal_module_exit);
441MODULE_AUTHOR("Redpine Signals Inc");
442MODULE_DESCRIPTION("Station driver for RSI 91x devices");
443MODULE_SUPPORTED_DEVICE("RSI-91x");
444MODULE_VERSION("0.1");
445MODULE_LICENSE("Dual BSD/GPL");