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-rw-r--r--drivers/misc/Kconfig1
-rw-r--r--drivers/misc/Makefile1
-rw-r--r--drivers/misc/iwmc3200top/Kconfig20
-rw-r--r--drivers/misc/iwmc3200top/Makefile29
-rw-r--r--drivers/misc/iwmc3200top/debugfs.c133
-rw-r--r--drivers/misc/iwmc3200top/debugfs.h58
-rw-r--r--drivers/misc/iwmc3200top/fw-download.c359
-rw-r--r--drivers/misc/iwmc3200top/fw-msg.h113
-rw-r--r--drivers/misc/iwmc3200top/iwmc3200top.h206
-rw-r--r--drivers/misc/iwmc3200top/log.c347
-rw-r--r--drivers/misc/iwmc3200top/log.h158
-rw-r--r--drivers/misc/iwmc3200top/main.c699
12 files changed, 2124 insertions, 0 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index df1f86b5c83e..a2ea383105a6 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -249,5 +249,6 @@ config EP93XX_PWM
249source "drivers/misc/c2port/Kconfig" 249source "drivers/misc/c2port/Kconfig"
250source "drivers/misc/eeprom/Kconfig" 250source "drivers/misc/eeprom/Kconfig"
251source "drivers/misc/cb710/Kconfig" 251source "drivers/misc/cb710/Kconfig"
252source "drivers/misc/iwmc3200top/Kconfig"
252 253
253endif # MISC_DEVICES 254endif # MISC_DEVICES
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index f982d2ecfde7..e311267a355f 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -21,5 +21,6 @@ obj-$(CONFIG_HP_ILO) += hpilo.o
21obj-$(CONFIG_ISL29003) += isl29003.o 21obj-$(CONFIG_ISL29003) += isl29003.o
22obj-$(CONFIG_EP93XX_PWM) += ep93xx_pwm.o 22obj-$(CONFIG_EP93XX_PWM) += ep93xx_pwm.o
23obj-$(CONFIG_C2PORT) += c2port/ 23obj-$(CONFIG_C2PORT) += c2port/
24obj-$(CONFIG_IWMC3200TOP) += iwmc3200top/
24obj-y += eeprom/ 25obj-y += eeprom/
25obj-y += cb710/ 26obj-y += cb710/
diff --git a/drivers/misc/iwmc3200top/Kconfig b/drivers/misc/iwmc3200top/Kconfig
new file mode 100644
index 000000000000..9e4b88fb57f1
--- /dev/null
+++ b/drivers/misc/iwmc3200top/Kconfig
@@ -0,0 +1,20 @@
1config IWMC3200TOP
2 tristate "Intel Wireless MultiCom Top Driver"
3 depends on MMC && EXPERIMENTAL
4 select FW_LOADER
5 ---help---
6 Intel Wireless MultiCom 3200 Top driver is responsible for
7 for firmware load and enabled coms enumeration
8
9config IWMC3200TOP_DEBUG
10 bool "Enable full debug output of iwmc3200top Driver"
11 depends on IWMC3200TOP
12 ---help---
13 Enable full debug output of iwmc3200top Driver
14
15config IWMC3200TOP_DEBUGFS
16 bool "Enable Debugfs debugging interface for iwmc3200top"
17 depends on IWMC3200TOP
18 ---help---
19 Enable creation of debugfs files for iwmc3200top
20
diff --git a/drivers/misc/iwmc3200top/Makefile b/drivers/misc/iwmc3200top/Makefile
new file mode 100644
index 000000000000..fbf53fb4634e
--- /dev/null
+++ b/drivers/misc/iwmc3200top/Makefile
@@ -0,0 +1,29 @@
1# iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
2# drivers/misc/iwmc3200top/Makefile
3#
4# Copyright (C) 2009 Intel Corporation. All rights reserved.
5#
6# This program is free software; you can redistribute it and/or
7# modify it under the terms of the GNU General Public License version
8# 2 as published by the Free Software Foundation.
9#
10# This program is distributed in the hope that it will be useful,
11# but WITHOUT ANY WARRANTY; without even the implied warranty of
12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13# GNU General Public License for more details.
14#
15# You should have received a copy of the GNU General Public License
16# along with this program; if not, write to the Free Software
17# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18# 02110-1301, USA.
19#
20#
21# Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
22# -
23#
24#
25
26obj-$(CONFIG_IWMC3200TOP) += iwmc3200top.o
27iwmc3200top-objs := main.o fw-download.o
28iwmc3200top-$(CONFIG_IWMC3200TOP_DEBUG) += log.o
29iwmc3200top-$(CONFIG_IWMC3200TOP_DEBUGFS) += debugfs.o
diff --git a/drivers/misc/iwmc3200top/debugfs.c b/drivers/misc/iwmc3200top/debugfs.c
new file mode 100644
index 000000000000..0c8ea0a1c8a3
--- /dev/null
+++ b/drivers/misc/iwmc3200top/debugfs.c
@@ -0,0 +1,133 @@
1/*
2 * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
3 * drivers/misc/iwmc3200top/debufs.c
4 *
5 * Copyright (C) 2009 Intel Corporation. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version
9 * 2 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 * 02110-1301, USA.
20 *
21 *
22 * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
23 * -
24 *
25 */
26
27#include <linux/kernel.h>
28#include <linux/string.h>
29#include <linux/ctype.h>
30#include <linux/mmc/sdio_func.h>
31#include <linux/mmc/sdio.h>
32#include <linux/debugfs.h>
33
34#include "iwmc3200top.h"
35#include "fw-msg.h"
36#include "log.h"
37#include "debugfs.h"
38
39
40
41/* Constants definition */
42#define HEXADECIMAL_RADIX 16
43
44/* Functions definition */
45
46
47#define DEBUGFS_ADD(name, parent) do { \
48 dbgfs->dbgfs_##parent##_files.file_##name = \
49 debugfs_create_file(#name, 0644, dbgfs->dir_##parent, priv, \
50 &iwmct_dbgfs_##name##_ops); \
51} while (0)
52
53#define DEBUGFS_RM(name) do { \
54 debugfs_remove(name); \
55 name = NULL; \
56} while (0)
57
58#define DEBUGFS_READ_FUNC(name) \
59ssize_t iwmct_dbgfs_##name##_read(struct file *file, \
60 char __user *user_buf, \
61 size_t count, loff_t *ppos);
62
63#define DEBUGFS_WRITE_FUNC(name) \
64ssize_t iwmct_dbgfs_##name##_write(struct file *file, \
65 const char __user *user_buf, \
66 size_t count, loff_t *ppos);
67
68#define DEBUGFS_READ_FILE_OPS(name) \
69 DEBUGFS_READ_FUNC(name) \
70 static const struct file_operations iwmct_dbgfs_##name##_ops = { \
71 .read = iwmct_dbgfs_##name##_read, \
72 .open = iwmct_dbgfs_open_file_generic, \
73 };
74
75#define DEBUGFS_WRITE_FILE_OPS(name) \
76 DEBUGFS_WRITE_FUNC(name) \
77 static const struct file_operations iwmct_dbgfs_##name##_ops = { \
78 .write = iwmct_dbgfs_##name##_write, \
79 .open = iwmct_dbgfs_open_file_generic, \
80 };
81
82#define DEBUGFS_READ_WRITE_FILE_OPS(name) \
83 DEBUGFS_READ_FUNC(name) \
84 DEBUGFS_WRITE_FUNC(name) \
85 static const struct file_operations iwmct_dbgfs_##name##_ops = {\
86 .write = iwmct_dbgfs_##name##_write, \
87 .read = iwmct_dbgfs_##name##_read, \
88 .open = iwmct_dbgfs_open_file_generic, \
89 };
90
91
92/* Debugfs file ops definitions */
93
94/*
95 * Create the debugfs files and directories
96 *
97 */
98void iwmct_dbgfs_register(struct iwmct_priv *priv, const char *name)
99{
100 struct iwmct_debugfs *dbgfs;
101
102 dbgfs = kzalloc(sizeof(struct iwmct_debugfs), GFP_KERNEL);
103 if (!dbgfs) {
104 LOG_ERROR(priv, DEBUGFS, "failed to allocate %zd bytes\n",
105 sizeof(struct iwmct_debugfs));
106 return;
107 }
108
109 priv->dbgfs = dbgfs;
110 dbgfs->name = name;
111 dbgfs->dir_drv = debugfs_create_dir(name, NULL);
112 if (!dbgfs->dir_drv) {
113 LOG_ERROR(priv, DEBUGFS, "failed to create debugfs dir\n");
114 return;
115 }
116
117 return;
118}
119
120/**
121 * Remove the debugfs files and directories
122 *
123 */
124void iwmct_dbgfs_unregister(struct iwmct_debugfs *dbgfs)
125{
126 if (!dbgfs)
127 return;
128
129 DEBUGFS_RM(dbgfs->dir_drv);
130 kfree(dbgfs);
131 dbgfs = NULL;
132}
133
diff --git a/drivers/misc/iwmc3200top/debugfs.h b/drivers/misc/iwmc3200top/debugfs.h
new file mode 100644
index 000000000000..71d45759b40f
--- /dev/null
+++ b/drivers/misc/iwmc3200top/debugfs.h
@@ -0,0 +1,58 @@
1/*
2 * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
3 * drivers/misc/iwmc3200top/debufs.h
4 *
5 * Copyright (C) 2009 Intel Corporation. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version
9 * 2 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 * 02110-1301, USA.
20 *
21 *
22 * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
23 * -
24 *
25 */
26
27#ifndef __DEBUGFS_H__
28#define __DEBUGFS_H__
29
30
31#ifdef CONFIG_IWMC3200TOP_DEBUGFS
32
33struct iwmct_debugfs {
34 const char *name;
35 struct dentry *dir_drv;
36 struct dir_drv_files {
37 } dbgfs_drv_files;
38};
39
40void iwmct_dbgfs_register(struct iwmct_priv *priv, const char *name);
41void iwmct_dbgfs_unregister(struct iwmct_debugfs *dbgfs);
42
43#else /* CONFIG_IWMC3200TOP_DEBUGFS */
44
45struct iwmct_debugfs;
46
47static inline void
48iwmct_dbgfs_register(struct iwmct_priv *priv, const char *name)
49{}
50
51static inline void
52iwmct_dbgfs_unregister(struct iwmct_debugfs *dbgfs)
53{}
54
55#endif /* CONFIG_IWMC3200TOP_DEBUGFS */
56
57#endif /* __DEBUGFS_H__ */
58
diff --git a/drivers/misc/iwmc3200top/fw-download.c b/drivers/misc/iwmc3200top/fw-download.c
new file mode 100644
index 000000000000..33cb693dd37c
--- /dev/null
+++ b/drivers/misc/iwmc3200top/fw-download.c
@@ -0,0 +1,359 @@
1/*
2 * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
3 * drivers/misc/iwmc3200top/fw-download.c
4 *
5 * Copyright (C) 2009 Intel Corporation. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version
9 * 2 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 * 02110-1301, USA.
20 *
21 *
22 * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
23 * -
24 *
25 */
26
27#include <linux/firmware.h>
28#include <linux/mmc/sdio_func.h>
29#include <asm/unaligned.h>
30
31#include "iwmc3200top.h"
32#include "log.h"
33#include "fw-msg.h"
34
35#define CHECKSUM_BYTES_NUM sizeof(u32)
36
37/**
38 init parser struct with file
39 */
40static int iwmct_fw_parser_init(struct iwmct_priv *priv, const u8 *file,
41 size_t file_size, size_t block_size)
42{
43 struct iwmct_parser *parser = &priv->parser;
44 struct iwmct_fw_hdr *fw_hdr = &parser->versions;
45
46 LOG_INFOEX(priv, INIT, "-->\n");
47
48 LOG_INFO(priv, FW_DOWNLOAD, "file_size=%zd\n", file_size);
49
50 parser->file = file;
51 parser->file_size = file_size;
52 parser->cur_pos = 0;
53 parser->buf = NULL;
54
55 parser->buf = kzalloc(block_size, GFP_KERNEL);
56 if (!parser->buf) {
57 LOG_ERROR(priv, FW_DOWNLOAD, "kzalloc error\n");
58 return -ENOMEM;
59 }
60 parser->buf_size = block_size;
61
62 /* extract fw versions */
63 memcpy(fw_hdr, parser->file, sizeof(struct iwmct_fw_hdr));
64 LOG_INFO(priv, FW_DOWNLOAD, "fw versions are:\n"
65 "top %u.%u.%u gps %u.%u.%u bt %u.%u.%u tic %s\n",
66 fw_hdr->top_major, fw_hdr->top_minor, fw_hdr->top_revision,
67 fw_hdr->gps_major, fw_hdr->gps_minor, fw_hdr->gps_revision,
68 fw_hdr->bt_major, fw_hdr->bt_minor, fw_hdr->bt_revision,
69 fw_hdr->tic_name);
70
71 parser->cur_pos += sizeof(struct iwmct_fw_hdr);
72
73 LOG_INFOEX(priv, INIT, "<--\n");
74 return 0;
75}
76
77static bool iwmct_checksum(struct iwmct_priv *priv)
78{
79 struct iwmct_parser *parser = &priv->parser;
80 __le32 *file = (__le32 *)parser->file;
81 int i, pad, steps;
82 u32 accum = 0;
83 u32 checksum;
84 u32 mask = 0xffffffff;
85
86 pad = (parser->file_size - CHECKSUM_BYTES_NUM) % 4;
87 steps = (parser->file_size - CHECKSUM_BYTES_NUM) / 4;
88
89 LOG_INFO(priv, FW_DOWNLOAD, "pad=%d steps=%d\n", pad, steps);
90
91 for (i = 0; i < steps; i++)
92 accum += le32_to_cpu(file[i]);
93
94 if (pad) {
95 mask <<= 8 * (4 - pad);
96 accum += le32_to_cpu(file[steps]) & mask;
97 }
98
99 checksum = get_unaligned_le32((__le32 *)(parser->file +
100 parser->file_size - CHECKSUM_BYTES_NUM));
101
102 LOG_INFO(priv, FW_DOWNLOAD,
103 "compare checksum accum=0x%x to checksum=0x%x\n",
104 accum, checksum);
105
106 return checksum == accum;
107}
108
109static int iwmct_parse_next_section(struct iwmct_priv *priv, const u8 **p_sec,
110 size_t *sec_size, __le32 *sec_addr)
111{
112 struct iwmct_parser *parser = &priv->parser;
113 struct iwmct_dbg *dbg = &priv->dbg;
114 struct iwmct_fw_sec_hdr *sec_hdr;
115
116 LOG_INFOEX(priv, INIT, "-->\n");
117
118 while (parser->cur_pos + sizeof(struct iwmct_fw_sec_hdr)
119 <= parser->file_size) {
120
121 sec_hdr = (struct iwmct_fw_sec_hdr *)
122 (parser->file + parser->cur_pos);
123 parser->cur_pos += sizeof(struct iwmct_fw_sec_hdr);
124
125 LOG_INFO(priv, FW_DOWNLOAD,
126 "sec hdr: type=%s addr=0x%x size=%d\n",
127 sec_hdr->type, sec_hdr->target_addr,
128 sec_hdr->data_size);
129
130 if (strcmp(sec_hdr->type, "ENT") == 0)
131 parser->entry_point = le32_to_cpu(sec_hdr->target_addr);
132 else if (strcmp(sec_hdr->type, "LBL") == 0)
133 strcpy(dbg->label_fw, parser->file + parser->cur_pos);
134 else if (((strcmp(sec_hdr->type, "TOP") == 0) &&
135 (priv->barker & BARKER_DNLOAD_TOP_MSK)) ||
136 ((strcmp(sec_hdr->type, "GPS") == 0) &&
137 (priv->barker & BARKER_DNLOAD_GPS_MSK)) ||
138 ((strcmp(sec_hdr->type, "BTH") == 0) &&
139 (priv->barker & BARKER_DNLOAD_BT_MSK))) {
140 *sec_addr = sec_hdr->target_addr;
141 *sec_size = le32_to_cpu(sec_hdr->data_size);
142 *p_sec = parser->file + parser->cur_pos;
143 parser->cur_pos += le32_to_cpu(sec_hdr->data_size);
144 return 1;
145 } else if (strcmp(sec_hdr->type, "LOG") != 0)
146 LOG_WARNING(priv, FW_DOWNLOAD,
147 "skipping section type %s\n",
148 sec_hdr->type);
149
150 parser->cur_pos += le32_to_cpu(sec_hdr->data_size);
151 LOG_INFO(priv, FW_DOWNLOAD,
152 "finished with section cur_pos=%zd\n", parser->cur_pos);
153 }
154
155 LOG_INFOEX(priv, INIT, "<--\n");
156 return 0;
157}
158
159static int iwmct_download_section(struct iwmct_priv *priv, const u8 *p_sec,
160 size_t sec_size, __le32 addr)
161{
162 struct iwmct_parser *parser = &priv->parser;
163 struct iwmct_fw_load_hdr *hdr = (struct iwmct_fw_load_hdr *)parser->buf;
164 const u8 *cur_block = p_sec;
165 size_t sent = 0;
166 int cnt = 0;
167 int ret = 0;
168 u32 cmd = 0;
169
170 LOG_INFOEX(priv, INIT, "-->\n");
171 LOG_INFO(priv, FW_DOWNLOAD, "Download address 0x%x size 0x%zx\n",
172 addr, sec_size);
173
174 while (sent < sec_size) {
175 int i;
176 u32 chksm = 0;
177 u32 reset = atomic_read(&priv->reset);
178 /* actual FW data */
179 u32 data_size = min(parser->buf_size - sizeof(*hdr),
180 sec_size - sent);
181 /* Pad to block size */
182 u32 trans_size = (data_size + sizeof(*hdr) +
183 IWMC_SDIO_BLK_SIZE - 1) &
184 ~(IWMC_SDIO_BLK_SIZE - 1);
185 ++cnt;
186
187 /* in case of reset, interrupt FW DOWNLAOD */
188 if (reset) {
189 LOG_INFO(priv, FW_DOWNLOAD,
190 "Reset detected. Abort FW download!!!");
191 ret = -ECANCELED;
192 goto exit;
193 }
194
195 memset(parser->buf, 0, parser->buf_size);
196 cmd |= IWMC_OPCODE_WRITE << CMD_HDR_OPCODE_POS;
197 cmd |= IWMC_CMD_SIGNATURE << CMD_HDR_SIGNATURE_POS;
198 cmd |= (priv->dbg.direct ? 1 : 0) << CMD_HDR_DIRECT_ACCESS_POS;
199 cmd |= (priv->dbg.checksum ? 1 : 0) << CMD_HDR_USE_CHECKSUM_POS;
200 hdr->data_size = cpu_to_le32(data_size);
201 hdr->target_addr = addr;
202
203 /* checksum is allowed for sizes divisible by 4 */
204 if (data_size & 0x3)
205 cmd &= ~CMD_HDR_USE_CHECKSUM_MSK;
206
207 memcpy(hdr->data, cur_block, data_size);
208
209
210 if (cmd & CMD_HDR_USE_CHECKSUM_MSK) {
211
212 chksm = data_size + le32_to_cpu(addr) + cmd;
213 for (i = 0; i < data_size >> 2; i++)
214 chksm += ((u32 *)cur_block)[i];
215
216 hdr->block_chksm = cpu_to_le32(chksm);
217 LOG_INFO(priv, FW_DOWNLOAD, "Checksum = 0x%X\n",
218 hdr->block_chksm);
219 }
220
221 LOG_INFO(priv, FW_DOWNLOAD, "trans#%d, len=%d, sent=%zd, "
222 "sec_size=%zd, startAddress 0x%X\n",
223 cnt, trans_size, sent, sec_size, addr);
224
225 if (priv->dbg.dump)
226 LOG_HEXDUMP(FW_DOWNLOAD, parser->buf, trans_size);
227
228
229 hdr->cmd = cpu_to_le32(cmd);
230 /* send it down */
231 /* TODO: add more proper sending and error checking */
232 ret = iwmct_tx(priv, 0, parser->buf, trans_size);
233 if (ret != 0) {
234 LOG_INFO(priv, FW_DOWNLOAD,
235 "iwmct_tx returned %d\n", ret);
236 goto exit;
237 }
238
239 addr = cpu_to_le32(le32_to_cpu(addr) + data_size);
240 sent += data_size;
241 cur_block = p_sec + sent;
242
243 if (priv->dbg.blocks && (cnt + 1) >= priv->dbg.blocks) {
244 LOG_INFO(priv, FW_DOWNLOAD,
245 "Block number limit is reached [%d]\n",
246 priv->dbg.blocks);
247 break;
248 }
249 }
250
251 if (sent < sec_size)
252 ret = -EINVAL;
253exit:
254 LOG_INFOEX(priv, INIT, "<--\n");
255 return ret;
256}
257
258static int iwmct_kick_fw(struct iwmct_priv *priv, bool jump)
259{
260 struct iwmct_parser *parser = &priv->parser;
261 struct iwmct_fw_load_hdr *hdr = (struct iwmct_fw_load_hdr *)parser->buf;
262 int ret;
263 u32 cmd;
264
265 LOG_INFOEX(priv, INIT, "-->\n");
266
267 memset(parser->buf, 0, parser->buf_size);
268 cmd = IWMC_CMD_SIGNATURE << CMD_HDR_SIGNATURE_POS;
269 if (jump) {
270 cmd |= IWMC_OPCODE_JUMP << CMD_HDR_OPCODE_POS;
271 hdr->target_addr = cpu_to_le32(parser->entry_point);
272 LOG_INFO(priv, FW_DOWNLOAD, "jump address 0x%x\n",
273 parser->entry_point);
274 } else {
275 cmd |= IWMC_OPCODE_LAST_COMMAND << CMD_HDR_OPCODE_POS;
276 LOG_INFO(priv, FW_DOWNLOAD, "last command\n");
277 }
278
279 hdr->cmd = cpu_to_le32(cmd);
280
281 LOG_HEXDUMP(FW_DOWNLOAD, parser->buf, sizeof(*hdr));
282 /* send it down */
283 /* TODO: add more proper sending and error checking */
284 ret = iwmct_tx(priv, 0, parser->buf, IWMC_SDIO_BLK_SIZE);
285 if (ret)
286 LOG_INFO(priv, FW_DOWNLOAD, "iwmct_tx returned %d", ret);
287
288 LOG_INFOEX(priv, INIT, "<--\n");
289 return 0;
290}
291
292int iwmct_fw_load(struct iwmct_priv *priv)
293{
294 const struct firmware *raw = NULL;
295 __le32 addr;
296 size_t len;
297 const u8 *pdata;
298 const u8 *name = "iwmc3200top.1.fw";
299 int ret = 0;
300
301 /* clear parser struct */
302 memset(&priv->parser, 0, sizeof(struct iwmct_parser));
303 if (!name) {
304 ret = -EINVAL;
305 goto exit;
306 }
307
308 /* get the firmware */
309 ret = request_firmware(&raw, name, &priv->func->dev);
310 if (ret < 0) {
311 LOG_ERROR(priv, FW_DOWNLOAD, "%s request_firmware failed %d\n",
312 name, ret);
313 goto exit;
314 }
315
316 if (raw->size < sizeof(struct iwmct_fw_sec_hdr)) {
317 LOG_ERROR(priv, FW_DOWNLOAD, "%s smaller then (%zd) (%zd)\n",
318 name, sizeof(struct iwmct_fw_sec_hdr), raw->size);
319 goto exit;
320 }
321
322 LOG_INFO(priv, FW_DOWNLOAD, "Read firmware '%s'\n", name);
323
324 ret = iwmct_fw_parser_init(priv, raw->data, raw->size, priv->trans_len);
325 if (ret < 0) {
326 LOG_ERROR(priv, FW_DOWNLOAD,
327 "iwmct_parser_init failed: Reason %d\n", ret);
328 goto exit;
329 }
330
331 /* checksum */
332 if (!iwmct_checksum(priv)) {
333 LOG_ERROR(priv, FW_DOWNLOAD, "checksum error\n");
334 ret = -EINVAL;
335 goto exit;
336 }
337
338 /* download firmware to device */
339 while (iwmct_parse_next_section(priv, &pdata, &len, &addr)) {
340 if (iwmct_download_section(priv, pdata, len, addr)) {
341 LOG_ERROR(priv, FW_DOWNLOAD,
342 "%s download section failed\n", name);
343 ret = -EIO;
344 goto exit;
345 }
346 }
347
348 iwmct_kick_fw(priv, !!(priv->barker & BARKER_DNLOAD_JUMP_MSK));
349
350exit:
351 kfree(priv->parser.buf);
352
353 if (raw)
354 release_firmware(raw);
355
356 raw = NULL;
357
358 return ret;
359}
diff --git a/drivers/misc/iwmc3200top/fw-msg.h b/drivers/misc/iwmc3200top/fw-msg.h
new file mode 100644
index 000000000000..9e26b75bd482
--- /dev/null
+++ b/drivers/misc/iwmc3200top/fw-msg.h
@@ -0,0 +1,113 @@
1/*
2 * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
3 * drivers/misc/iwmc3200top/fw-msg.h
4 *
5 * Copyright (C) 2009 Intel Corporation. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version
9 * 2 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 * 02110-1301, USA.
20 *
21 *
22 * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
23 * -
24 *
25 */
26
27#ifndef __FWMSG_H__
28#define __FWMSG_H__
29
30#define COMM_TYPE_D2H 0xFF
31#define COMM_TYPE_H2D 0xEE
32
33#define COMM_CATEGORY_OPERATIONAL 0x00
34#define COMM_CATEGORY_DEBUG 0x01
35#define COMM_CATEGORY_TESTABILITY 0x02
36#define COMM_CATEGORY_DIAGNOSTICS 0x03
37
38#define OP_DBG_ZSTR_MSG cpu_to_le16(0x1A)
39
40#define FW_LOG_SRC_MAX 32
41#define FW_LOG_SRC_ALL 255
42
43#define FW_STRING_TABLE_ADDR cpu_to_le32(0x0C000000)
44
45#define CMD_DBG_LOG_LEVEL cpu_to_le16(0x0001)
46#define CMD_TST_DEV_RESET cpu_to_le16(0x0060)
47#define CMD_TST_FUNC_RESET cpu_to_le16(0x0062)
48#define CMD_TST_IFACE_RESET cpu_to_le16(0x0064)
49#define CMD_TST_CPU_UTILIZATION cpu_to_le16(0x0065)
50#define CMD_TST_TOP_DEEP_SLEEP cpu_to_le16(0x0080)
51#define CMD_TST_WAKEUP cpu_to_le16(0x0081)
52#define CMD_TST_FUNC_WAKEUP cpu_to_le16(0x0082)
53#define CMD_TST_FUNC_DEEP_SLEEP_REQUEST cpu_to_le16(0x0083)
54#define CMD_TST_GET_MEM_DUMP cpu_to_le16(0x0096)
55
56#define OP_OPR_ALIVE cpu_to_le16(0x0010)
57#define OP_OPR_CMD_ACK cpu_to_le16(0x001F)
58#define OP_OPR_CMD_NACK cpu_to_le16(0x0020)
59#define OP_TST_MEM_DUMP cpu_to_le16(0x0043)
60
61#define CMD_FLAG_PADDING_256 0x80
62
63#define FW_HCMD_BLOCK_SIZE 256
64
65struct msg_hdr {
66 u8 type;
67 u8 category;
68 __le16 opcode;
69 u8 seqnum;
70 u8 flags;
71 __le16 length;
72} __attribute__((__packed__));
73
74struct log_hdr {
75 __le32 timestamp;
76 u8 severity;
77 u8 logsource;
78 __le16 reserved;
79} __attribute__((__packed__));
80
81struct mdump_hdr {
82 u8 dmpid;
83 u8 frag;
84 __le16 size;
85 __le32 addr;
86} __attribute__((__packed__));
87
88struct top_msg {
89 struct msg_hdr hdr;
90 union {
91 /* D2H messages */
92 struct {
93 struct log_hdr log_hdr;
94 u8 data[1];
95 } __attribute__((__packed__)) log;
96
97 struct {
98 struct log_hdr log_hdr;
99 struct mdump_hdr md_hdr;
100 u8 data[1];
101 } __attribute__((__packed__)) mdump;
102
103 /* H2D messages */
104 struct {
105 u8 logsource;
106 u8 sevmask;
107 } __attribute__((__packed__)) logdefs[FW_LOG_SRC_MAX];
108 struct mdump_hdr mdump_req;
109 } u;
110} __attribute__((__packed__));
111
112
113#endif /* __FWMSG_H__ */
diff --git a/drivers/misc/iwmc3200top/iwmc3200top.h b/drivers/misc/iwmc3200top/iwmc3200top.h
new file mode 100644
index 000000000000..f572fcf177a1
--- /dev/null
+++ b/drivers/misc/iwmc3200top/iwmc3200top.h
@@ -0,0 +1,206 @@
1/*
2 * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
3 * drivers/misc/iwmc3200top/iwmc3200top.h
4 *
5 * Copyright (C) 2009 Intel Corporation. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version
9 * 2 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 * 02110-1301, USA.
20 *
21 *
22 * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
23 * -
24 *
25 */
26
27#ifndef __IWMC3200TOP_H__
28#define __IWMC3200TOP_H__
29
30#include <linux/workqueue.h>
31
32#define DRV_NAME "iwmc3200top"
33
34#define IWMC_SDIO_BLK_SIZE 256
35#define IWMC_DEFAULT_TR_BLK 64
36#define IWMC_SDIO_DATA_ADDR 0x0
37#define IWMC_SDIO_INTR_ENABLE_ADDR 0x14
38#define IWMC_SDIO_INTR_STATUS_ADDR 0x13
39#define IWMC_SDIO_INTR_CLEAR_ADDR 0x13
40#define IWMC_SDIO_INTR_GET_SIZE_ADDR 0x2C
41
42#define COMM_HUB_HEADER_LENGTH 16
43#define LOGGER_HEADER_LENGTH 10
44
45
46#define BARKER_DNLOAD_BT_POS 0
47#define BARKER_DNLOAD_BT_MSK BIT(BARKER_DNLOAD_BT_POS)
48#define BARKER_DNLOAD_GPS_POS 1
49#define BARKER_DNLOAD_GPS_MSK BIT(BARKER_DNLOAD_GPS_POS)
50#define BARKER_DNLOAD_TOP_POS 2
51#define BARKER_DNLOAD_TOP_MSK BIT(BARKER_DNLOAD_TOP_POS)
52#define BARKER_DNLOAD_RESERVED1_POS 3
53#define BARKER_DNLOAD_RESERVED1_MSK BIT(BARKER_DNLOAD_RESERVED1_POS)
54#define BARKER_DNLOAD_JUMP_POS 4
55#define BARKER_DNLOAD_JUMP_MSK BIT(BARKER_DNLOAD_JUMP_POS)
56#define BARKER_DNLOAD_SYNC_POS 5
57#define BARKER_DNLOAD_SYNC_MSK BIT(BARKER_DNLOAD_SYNC_POS)
58#define BARKER_DNLOAD_RESERVED2_POS 6
59#define BARKER_DNLOAD_RESERVED2_MSK (0x3 << BARKER_DNLOAD_RESERVED2_POS)
60#define BARKER_DNLOAD_BARKER_POS 8
61#define BARKER_DNLOAD_BARKER_MSK (0xffffff << BARKER_DNLOAD_BARKER_POS)
62
63#define IWMC_BARKER_REBOOT (0xdeadbe << BARKER_DNLOAD_BARKER_POS)
64/* whole field barker */
65#define IWMC_BARKER_ACK 0xfeedbabe
66
67#define IWMC_CMD_SIGNATURE 0xcbbc
68
69#define CMD_HDR_OPCODE_POS 0
70#define CMD_HDR_OPCODE_MSK_MSK (0xf << CMD_HDR_OPCODE_MSK_POS)
71#define CMD_HDR_RESPONSE_CODE_POS 4
72#define CMD_HDR_RESPONSE_CODE_MSK (0xf << CMD_HDR_RESPONSE_CODE_POS)
73#define CMD_HDR_USE_CHECKSUM_POS 8
74#define CMD_HDR_USE_CHECKSUM_MSK BIT(CMD_HDR_USE_CHECKSUM_POS)
75#define CMD_HDR_RESPONSE_REQUIRED_POS 9
76#define CMD_HDR_RESPONSE_REQUIRED_MSK BIT(CMD_HDR_RESPONSE_REQUIRED_POS)
77#define CMD_HDR_DIRECT_ACCESS_POS 10
78#define CMD_HDR_DIRECT_ACCESS_MSK BIT(CMD_HDR_DIRECT_ACCESS_POS)
79#define CMD_HDR_RESERVED_POS 11
80#define CMD_HDR_RESERVED_MSK BIT(0x1f << CMD_HDR_RESERVED_POS)
81#define CMD_HDR_SIGNATURE_POS 16
82#define CMD_HDR_SIGNATURE_MSK BIT(0xffff << CMD_HDR_SIGNATURE_POS)
83
84enum {
85 IWMC_OPCODE_PING = 0,
86 IWMC_OPCODE_READ = 1,
87 IWMC_OPCODE_WRITE = 2,
88 IWMC_OPCODE_JUMP = 3,
89 IWMC_OPCODE_REBOOT = 4,
90 IWMC_OPCODE_PERSISTENT_WRITE = 5,
91 IWMC_OPCODE_PERSISTENT_READ = 6,
92 IWMC_OPCODE_READ_MODIFY_WRITE = 7,
93 IWMC_OPCODE_LAST_COMMAND = 15
94};
95
96struct iwmct_fw_load_hdr {
97 __le32 cmd;
98 __le32 target_addr;
99 __le32 data_size;
100 __le32 block_chksm;
101 u8 data[0];
102};
103
104/**
105 * struct iwmct_fw_hdr
106 * holds all sw components versions
107 */
108struct iwmct_fw_hdr {
109 u8 top_major;
110 u8 top_minor;
111 u8 top_revision;
112 u8 gps_major;
113 u8 gps_minor;
114 u8 gps_revision;
115 u8 bt_major;
116 u8 bt_minor;
117 u8 bt_revision;
118 u8 tic_name[31];
119};
120
121/**
122 * struct iwmct_fw_sec_hdr
123 * @type: function type
124 * @data_size: section's data size
125 * @target_addr: download address
126 */
127struct iwmct_fw_sec_hdr {
128 u8 type[4];
129 __le32 data_size;
130 __le32 target_addr;
131};
132
133/**
134 * struct iwmct_parser
135 * @file: fw image
136 * @file_size: fw size
137 * @cur_pos: position in file
138 * @buf: temp buf for download
139 * @buf_size: size of buf
140 * @entry_point: address to jump in fw kick-off
141 */
142struct iwmct_parser {
143 const u8 *file;
144 size_t file_size;
145 size_t cur_pos;
146 u8 *buf;
147 size_t buf_size;
148 u32 entry_point;
149 struct iwmct_fw_hdr versions;
150};
151
152
153struct iwmct_work_struct {
154 struct list_head list;
155 ssize_t iosize;
156};
157
158struct iwmct_dbg {
159 int blocks;
160 bool dump;
161 bool jump;
162 bool direct;
163 bool checksum;
164 bool fw_download;
165 int block_size;
166 int download_trans_blks;
167
168 char label_fw[256];
169};
170
171struct iwmct_debugfs;
172
173struct iwmct_priv {
174 struct sdio_func *func;
175 struct iwmct_debugfs *dbgfs;
176 struct iwmct_parser parser;
177 atomic_t reset;
178 atomic_t dev_sync;
179 u32 trans_len;
180 u32 barker;
181 struct iwmct_dbg dbg;
182
183 /* drivers work queue */
184 struct workqueue_struct *wq;
185 struct workqueue_struct *bus_rescan_wq;
186 struct work_struct bus_rescan_worker;
187 struct work_struct isr_worker;
188
189 /* drivers wait queue */
190 wait_queue_head_t wait_q;
191
192 /* rx request list */
193 struct list_head read_req_list;
194};
195
196extern int iwmct_tx(struct iwmct_priv *priv, unsigned int addr,
197 void *src, int count);
198
199extern int iwmct_fw_load(struct iwmct_priv *priv);
200
201extern void iwmct_dbg_init_params(struct iwmct_priv *drv);
202extern void iwmct_dbg_init_drv_attrs(struct device_driver *drv);
203extern void iwmct_dbg_remove_drv_attrs(struct device_driver *drv);
204extern int iwmct_send_hcmd(struct iwmct_priv *priv, u8 *cmd, u16 len);
205
206#endif /* __IWMC3200TOP_H__ */
diff --git a/drivers/misc/iwmc3200top/log.c b/drivers/misc/iwmc3200top/log.c
new file mode 100644
index 000000000000..d569279698f6
--- /dev/null
+++ b/drivers/misc/iwmc3200top/log.c
@@ -0,0 +1,347 @@
1/*
2 * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
3 * drivers/misc/iwmc3200top/log.c
4 *
5 * Copyright (C) 2009 Intel Corporation. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version
9 * 2 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 * 02110-1301, USA.
20 *
21 *
22 * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
23 * -
24 *
25 */
26
27#include <linux/kernel.h>
28#include <linux/mmc/sdio_func.h>
29#include <linux/ctype.h>
30#include "fw-msg.h"
31#include "iwmc3200top.h"
32#include "log.h"
33
34/* Maximal hexadecimal string size of the FW memdump message */
35#define LOG_MSG_SIZE_MAX 12400
36
37/* iwmct_logdefs is a global used by log macros */
38u8 iwmct_logdefs[LOG_SRC_MAX];
39static u8 iwmct_fw_logdefs[FW_LOG_SRC_MAX];
40
41
42static int _log_set_log_filter(u8 *logdefs, int size, u8 src, u8 logmask)
43{
44 int i;
45
46 if (src < size)
47 logdefs[src] = logmask;
48 else if (src == LOG_SRC_ALL)
49 for (i = 0; i < size; i++)
50 logdefs[i] = logmask;
51 else
52 return -1;
53
54 return 0;
55}
56
57
58int iwmct_log_set_filter(u8 src, u8 logmask)
59{
60 return _log_set_log_filter(iwmct_logdefs, LOG_SRC_MAX, src, logmask);
61}
62
63
64int iwmct_log_set_fw_filter(u8 src, u8 logmask)
65{
66 return _log_set_log_filter(iwmct_fw_logdefs,
67 FW_LOG_SRC_MAX, src, logmask);
68}
69
70
71static int log_msg_format_hex(char *str, int slen, u8 *ibuf,
72 int ilen, char *pref)
73{
74 int pos = 0;
75 int i;
76 int len;
77
78 for (pos = 0, i = 0; pos < slen - 2 && pref[i] != '\0'; i++, pos++)
79 str[pos] = pref[i];
80
81 for (i = 0; pos < slen - 2 && i < ilen; pos += len, i++)
82 len = snprintf(&str[pos], slen - pos - 1, " %2.2X", ibuf[i]);
83
84 if (i < ilen)
85 return -1;
86
87 return 0;
88}
89
90/* NOTE: This function is not thread safe.
91 Currently it's called only from sdio rx worker - no race there
92*/
93void iwmct_log_top_message(struct iwmct_priv *priv, u8 *buf, int len)
94{
95 struct top_msg *msg;
96 static char logbuf[LOG_MSG_SIZE_MAX];
97
98 msg = (struct top_msg *)buf;
99
100 if (len < sizeof(msg->hdr) + sizeof(msg->u.log.log_hdr)) {
101 LOG_ERROR(priv, FW_MSG, "Log message from TOP "
102 "is too short %d (expected %zd)\n",
103 len, sizeof(msg->hdr) + sizeof(msg->u.log.log_hdr));
104 return;
105 }
106
107 if (!(iwmct_fw_logdefs[msg->u.log.log_hdr.logsource] &
108 BIT(msg->u.log.log_hdr.severity)) ||
109 !(iwmct_logdefs[LOG_SRC_FW_MSG] & BIT(msg->u.log.log_hdr.severity)))
110 return;
111
112 switch (msg->hdr.category) {
113 case COMM_CATEGORY_TESTABILITY:
114 if (!(iwmct_logdefs[LOG_SRC_TST] &
115 BIT(msg->u.log.log_hdr.severity)))
116 return;
117 if (log_msg_format_hex(logbuf, LOG_MSG_SIZE_MAX, buf,
118 le16_to_cpu(msg->hdr.length) +
119 sizeof(msg->hdr), "<TST>"))
120 LOG_WARNING(priv, TST,
121 "TOP TST message is too long, truncating...");
122 LOG_WARNING(priv, TST, "%s\n", logbuf);
123 break;
124 case COMM_CATEGORY_DEBUG:
125 if (msg->hdr.opcode == OP_DBG_ZSTR_MSG)
126 LOG_INFO(priv, FW_MSG, "%s %s", "<DBG>",
127 ((u8 *)msg) + sizeof(msg->hdr)
128 + sizeof(msg->u.log.log_hdr));
129 else {
130 if (log_msg_format_hex(logbuf, LOG_MSG_SIZE_MAX, buf,
131 le16_to_cpu(msg->hdr.length)
132 + sizeof(msg->hdr),
133 "<DBG>"))
134 LOG_WARNING(priv, FW_MSG,
135 "TOP DBG message is too long,"
136 "truncating...");
137 LOG_WARNING(priv, FW_MSG, "%s\n", logbuf);
138 }
139 break;
140 default:
141 break;
142 }
143}
144
145static int _log_get_filter_str(u8 *logdefs, int logdefsz, char *buf, int size)
146{
147 int i, pos, len;
148 for (i = 0, pos = 0; (pos < size-1) && (i < logdefsz); i++) {
149 len = snprintf(&buf[pos], size - pos - 1, "0x%02X%02X,",
150 i, logdefs[i]);
151 pos += len;
152 }
153 buf[pos-1] = '\n';
154 buf[pos] = '\0';
155
156 if (i < logdefsz)
157 return -1;
158 return 0;
159}
160
161int log_get_filter_str(char *buf, int size)
162{
163 return _log_get_filter_str(iwmct_logdefs, LOG_SRC_MAX, buf, size);
164}
165
166int log_get_fw_filter_str(char *buf, int size)
167{
168 return _log_get_filter_str(iwmct_fw_logdefs, FW_LOG_SRC_MAX, buf, size);
169}
170
171#define HEXADECIMAL_RADIX 16
172#define LOG_SRC_FORMAT 7 /* log level is in format of "0xXXXX," */
173
174ssize_t show_iwmct_log_level(struct device *d,
175 struct device_attribute *attr, char *buf)
176{
177 struct iwmct_priv *priv = dev_get_drvdata(d);
178 char *str_buf;
179 int buf_size;
180 ssize_t ret;
181
182 buf_size = (LOG_SRC_FORMAT * LOG_SRC_MAX) + 1;
183 str_buf = kzalloc(buf_size, GFP_KERNEL);
184 if (!str_buf) {
185 LOG_ERROR(priv, DEBUGFS,
186 "failed to allocate %d bytes\n", buf_size);
187 ret = -ENOMEM;
188 goto exit;
189 }
190
191 if (log_get_filter_str(str_buf, buf_size) < 0) {
192 ret = -EINVAL;
193 goto exit;
194 }
195
196 ret = sprintf(buf, "%s", str_buf);
197
198exit:
199 kfree(str_buf);
200 return ret;
201}
202
203ssize_t store_iwmct_log_level(struct device *d,
204 struct device_attribute *attr,
205 const char *buf, size_t count)
206{
207 struct iwmct_priv *priv = dev_get_drvdata(d);
208 char *token, *str_buf = NULL;
209 long val;
210 ssize_t ret = count;
211 u8 src, mask;
212
213 if (!count)
214 goto exit;
215
216 str_buf = kzalloc(count, GFP_KERNEL);
217 if (!str_buf) {
218 LOG_ERROR(priv, DEBUGFS,
219 "failed to allocate %zd bytes\n", count);
220 ret = -ENOMEM;
221 goto exit;
222 }
223
224 memcpy(str_buf, buf, count);
225
226 while ((token = strsep(&str_buf, ",")) != NULL) {
227 while (isspace(*token))
228 ++token;
229 if (strict_strtol(token, HEXADECIMAL_RADIX, &val)) {
230 LOG_ERROR(priv, DEBUGFS,
231 "failed to convert string to long %s\n",
232 token);
233 ret = -EINVAL;
234 goto exit;
235 }
236
237 mask = val & 0xFF;
238 src = (val & 0XFF00) >> 8;
239 iwmct_log_set_filter(src, mask);
240 }
241
242exit:
243 kfree(str_buf);
244 return ret;
245}
246
247ssize_t show_iwmct_log_level_fw(struct device *d,
248 struct device_attribute *attr, char *buf)
249{
250 struct iwmct_priv *priv = dev_get_drvdata(d);
251 char *str_buf;
252 int buf_size;
253 ssize_t ret;
254
255 buf_size = (LOG_SRC_FORMAT * FW_LOG_SRC_MAX) + 2;
256
257 str_buf = kzalloc(buf_size, GFP_KERNEL);
258 if (!str_buf) {
259 LOG_ERROR(priv, DEBUGFS,
260 "failed to allocate %d bytes\n", buf_size);
261 ret = -ENOMEM;
262 goto exit;
263 }
264
265 if (log_get_fw_filter_str(str_buf, buf_size) < 0) {
266 ret = -EINVAL;
267 goto exit;
268 }
269
270 ret = sprintf(buf, "%s", str_buf);
271
272exit:
273 kfree(str_buf);
274 return ret;
275}
276
277ssize_t store_iwmct_log_level_fw(struct device *d,
278 struct device_attribute *attr,
279 const char *buf, size_t count)
280{
281 struct iwmct_priv *priv = dev_get_drvdata(d);
282 struct top_msg cmd;
283 char *token, *str_buf = NULL;
284 ssize_t ret = count;
285 u16 cmdlen = 0;
286 int i;
287 long val;
288 u8 src, mask;
289
290 if (!count)
291 goto exit;
292
293 str_buf = kzalloc(count, GFP_KERNEL);
294 if (!str_buf) {
295 LOG_ERROR(priv, DEBUGFS,
296 "failed to allocate %zd bytes\n", count);
297 ret = -ENOMEM;
298 goto exit;
299 }
300
301 memcpy(str_buf, buf, count);
302
303 cmd.hdr.type = COMM_TYPE_H2D;
304 cmd.hdr.category = COMM_CATEGORY_DEBUG;
305 cmd.hdr.opcode = CMD_DBG_LOG_LEVEL;
306
307 for (i = 0; ((token = strsep(&str_buf, ",")) != NULL) &&
308 (i < FW_LOG_SRC_MAX); i++) {
309
310 while (isspace(*token))
311 ++token;
312
313 if (strict_strtol(token, HEXADECIMAL_RADIX, &val)) {
314 LOG_ERROR(priv, DEBUGFS,
315 "failed to convert string to long %s\n",
316 token);
317 ret = -EINVAL;
318 goto exit;
319 }
320
321 mask = val & 0xFF; /* LSB */
322 src = (val & 0XFF00) >> 8; /* 2nd least significant byte. */
323 iwmct_log_set_fw_filter(src, mask);
324
325 cmd.u.logdefs[i].logsource = src;
326 cmd.u.logdefs[i].sevmask = mask;
327 }
328
329 cmd.hdr.length = cpu_to_le16(i * sizeof(cmd.u.logdefs[0]));
330 cmdlen = (i * sizeof(cmd.u.logdefs[0]) + sizeof(cmd.hdr));
331
332 ret = iwmct_send_hcmd(priv, (u8 *)&cmd, cmdlen);
333 if (ret) {
334 LOG_ERROR(priv, DEBUGFS,
335 "Failed to send %d bytes of fwcmd, ret=%zd\n",
336 cmdlen, ret);
337 goto exit;
338 } else
339 LOG_INFO(priv, DEBUGFS, "fwcmd sent (%d bytes)\n", cmdlen);
340
341 ret = count;
342
343exit:
344 kfree(str_buf);
345 return ret;
346}
347
diff --git a/drivers/misc/iwmc3200top/log.h b/drivers/misc/iwmc3200top/log.h
new file mode 100644
index 000000000000..aba8121f978c
--- /dev/null
+++ b/drivers/misc/iwmc3200top/log.h
@@ -0,0 +1,158 @@
1/*
2 * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
3 * drivers/misc/iwmc3200top/log.h
4 *
5 * Copyright (C) 2009 Intel Corporation. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version
9 * 2 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 * 02110-1301, USA.
20 *
21 *
22 * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
23 * -
24 *
25 */
26
27#ifndef __LOG_H__
28#define __LOG_H__
29
30
31/* log severity:
32 * The log levels here match FW log levels
33 * so values need to stay as is */
34#define LOG_SEV_CRITICAL 0
35#define LOG_SEV_ERROR 1
36#define LOG_SEV_WARNING 2
37#define LOG_SEV_INFO 3
38#define LOG_SEV_INFOEX 4
39
40#define LOG_SEV_FILTER_ALL \
41 (BIT(LOG_SEV_CRITICAL) | \
42 BIT(LOG_SEV_ERROR) | \
43 BIT(LOG_SEV_WARNING) | \
44 BIT(LOG_SEV_INFO) | \
45 BIT(LOG_SEV_INFOEX))
46
47/* log source */
48#define LOG_SRC_INIT 0
49#define LOG_SRC_DEBUGFS 1
50#define LOG_SRC_FW_DOWNLOAD 2
51#define LOG_SRC_FW_MSG 3
52#define LOG_SRC_TST 4
53#define LOG_SRC_IRQ 5
54
55#define LOG_SRC_MAX 6
56#define LOG_SRC_ALL 0xFF
57
58/**
59 * Default intitialization runtime log level
60 */
61#ifndef LOG_SEV_FILTER_RUNTIME
62#define LOG_SEV_FILTER_RUNTIME \
63 (BIT(LOG_SEV_CRITICAL) | \
64 BIT(LOG_SEV_ERROR) | \
65 BIT(LOG_SEV_WARNING))
66#endif
67
68#ifndef FW_LOG_SEV_FILTER_RUNTIME
69#define FW_LOG_SEV_FILTER_RUNTIME LOG_SEV_FILTER_ALL
70#endif
71
72#ifdef CONFIG_IWMC3200TOP_DEBUG
73/**
74 * Log macros
75 */
76
77#define priv2dev(priv) (&(priv->func)->dev)
78
79#define LOG_CRITICAL(priv, src, fmt, args...) \
80do { \
81 if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_CRITICAL)) \
82 dev_crit(priv2dev(priv), "%s %d: " fmt, \
83 __func__, __LINE__, ##args); \
84} while (0)
85
86#define LOG_ERROR(priv, src, fmt, args...) \
87do { \
88 if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_ERROR)) \
89 dev_err(priv2dev(priv), "%s %d: " fmt, \
90 __func__, __LINE__, ##args); \
91} while (0)
92
93#define LOG_WARNING(priv, src, fmt, args...) \
94do { \
95 if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_WARNING)) \
96 dev_warn(priv2dev(priv), "%s %d: " fmt, \
97 __func__, __LINE__, ##args); \
98} while (0)
99
100#define LOG_INFO(priv, src, fmt, args...) \
101do { \
102 if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_INFO)) \
103 dev_info(priv2dev(priv), "%s %d: " fmt, \
104 __func__, __LINE__, ##args); \
105} while (0)
106
107#define LOG_INFOEX(priv, src, fmt, args...) \
108do { \
109 if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_INFOEX)) \
110 dev_dbg(priv2dev(priv), "%s %d: " fmt, \
111 __func__, __LINE__, ##args); \
112} while (0)
113
114#define LOG_HEXDUMP(src, ptr, len) \
115do { \
116 if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_INFOEX)) \
117 print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_NONE, \
118 16, 1, ptr, len, false); \
119} while (0)
120
121void iwmct_log_top_message(struct iwmct_priv *priv, u8 *buf, int len);
122
123extern u8 iwmct_logdefs[];
124
125int iwmct_log_set_filter(u8 src, u8 logmask);
126int iwmct_log_set_fw_filter(u8 src, u8 logmask);
127
128ssize_t show_iwmct_log_level(struct device *d,
129 struct device_attribute *attr, char *buf);
130ssize_t store_iwmct_log_level(struct device *d,
131 struct device_attribute *attr,
132 const char *buf, size_t count);
133ssize_t show_iwmct_log_level_fw(struct device *d,
134 struct device_attribute *attr, char *buf);
135ssize_t store_iwmct_log_level_fw(struct device *d,
136 struct device_attribute *attr,
137 const char *buf, size_t count);
138
139#else
140
141#define LOG_CRITICAL(priv, src, fmt, args...)
142#define LOG_ERROR(priv, src, fmt, args...)
143#define LOG_WARNING(priv, src, fmt, args...)
144#define LOG_INFO(priv, src, fmt, args...)
145#define LOG_INFOEX(priv, src, fmt, args...)
146#define LOG_HEXDUMP(src, ptr, len)
147
148static inline void iwmct_log_top_message(struct iwmct_priv *priv,
149 u8 *buf, int len) {}
150static inline int iwmct_log_set_filter(u8 src, u8 logmask) { return 0; }
151static inline int iwmct_log_set_fw_filter(u8 src, u8 logmask) { return 0; }
152
153#endif /* CONFIG_IWMC3200TOP_DEBUG */
154
155int log_get_filter_str(char *buf, int size);
156int log_get_fw_filter_str(char *buf, int size);
157
158#endif /* __LOG_H__ */
diff --git a/drivers/misc/iwmc3200top/main.c b/drivers/misc/iwmc3200top/main.c
new file mode 100644
index 000000000000..6e4e49113ab4
--- /dev/null
+++ b/drivers/misc/iwmc3200top/main.c
@@ -0,0 +1,699 @@
1/*
2 * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
3 * drivers/misc/iwmc3200top/main.c
4 *
5 * Copyright (C) 2009 Intel Corporation. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version
9 * 2 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 * 02110-1301, USA.
20 *
21 *
22 * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
23 * -
24 *
25 */
26
27#include <linux/module.h>
28#include <linux/init.h>
29#include <linux/kernel.h>
30#include <linux/debugfs.h>
31#include <linux/mmc/sdio_ids.h>
32#include <linux/mmc/sdio_func.h>
33#include <linux/mmc/sdio.h>
34
35#include "iwmc3200top.h"
36#include "log.h"
37#include "fw-msg.h"
38#include "debugfs.h"
39
40
41#define DRIVER_DESCRIPTION "Intel(R) IWMC 3200 Top Driver"
42#define DRIVER_COPYRIGHT "Copyright (c) 2008 Intel Corporation."
43
44#define IWMCT_VERSION "0.1.62"
45
46#ifdef REPOSITORY_LABEL
47#define RL REPOSITORY_LABEL
48#else
49#define RL local
50#endif
51
52#ifdef CONFIG_IWMC3200TOP_DEBUG
53#define VD "-d"
54#else
55#define VD
56#endif
57
58#define DRIVER_VERSION IWMCT_VERSION "-" __stringify(RL) VD
59
60MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
61MODULE_VERSION(DRIVER_VERSION);
62MODULE_LICENSE("GPL");
63MODULE_AUTHOR(DRIVER_COPYRIGHT);
64
65
66/* FIXME: These can be found in sdio_ids.h in newer kernels */
67#ifndef SDIO_INTEL_VENDOR_ID
68#define SDIO_INTEL_VENDOR_ID 0x0089
69#endif
70#ifndef SDIO_DEVICE_ID_INTEL_IWMC3200TOP
71#define SDIO_DEVICE_ID_INTEL_IWMC3200TOP 0x1404
72#endif
73
74/*
75 * This workers main task is to wait for OP_OPR_ALIVE
76 * from TOP FW until ALIVE_MSG_TIMOUT timeout is elapsed.
77 * When OP_OPR_ALIVE received it will issue
78 * a call to "bus_rescan_devices".
79 */
80static void iwmct_rescan_worker(struct work_struct *ws)
81{
82 struct iwmct_priv *priv;
83 int ret;
84
85 priv = container_of(ws, struct iwmct_priv, bus_rescan_worker);
86
87 LOG_INFO(priv, FW_MSG, "Calling bus_rescan\n");
88
89 ret = bus_rescan_devices(priv->func->dev.bus);
90 if (ret < 0)
91 LOG_INFO(priv, FW_DOWNLOAD, "bus_rescan_devices FAILED!!!\n");
92}
93
94static void op_top_message(struct iwmct_priv *priv, struct top_msg *msg)
95{
96 switch (msg->hdr.opcode) {
97 case OP_OPR_ALIVE:
98 LOG_INFO(priv, FW_MSG, "Got ALIVE from device, wake rescan\n");
99 queue_work(priv->bus_rescan_wq, &priv->bus_rescan_worker);
100 break;
101 default:
102 LOG_INFO(priv, FW_MSG, "Received msg opcode 0x%X\n",
103 msg->hdr.opcode);
104 break;
105 }
106}
107
108
109static void handle_top_message(struct iwmct_priv *priv, u8 *buf, int len)
110{
111 struct top_msg *msg;
112
113 msg = (struct top_msg *)buf;
114
115 if (msg->hdr.type != COMM_TYPE_D2H) {
116 LOG_ERROR(priv, FW_MSG,
117 "Message from TOP with invalid message type 0x%X\n",
118 msg->hdr.type);
119 return;
120 }
121
122 if (len < sizeof(msg->hdr)) {
123 LOG_ERROR(priv, FW_MSG,
124 "Message from TOP is too short for message header "
125 "received %d bytes, expected at least %zd bytes\n",
126 len, sizeof(msg->hdr));
127 return;
128 }
129
130 if (len < le16_to_cpu(msg->hdr.length) + sizeof(msg->hdr)) {
131 LOG_ERROR(priv, FW_MSG,
132 "Message length (%d bytes) is shorter than "
133 "in header (%d bytes)\n",
134 len, le16_to_cpu(msg->hdr.length));
135 return;
136 }
137
138 switch (msg->hdr.category) {
139 case COMM_CATEGORY_OPERATIONAL:
140 op_top_message(priv, (struct top_msg *)buf);
141 break;
142
143 case COMM_CATEGORY_DEBUG:
144 case COMM_CATEGORY_TESTABILITY:
145 case COMM_CATEGORY_DIAGNOSTICS:
146 iwmct_log_top_message(priv, buf, len);
147 break;
148
149 default:
150 LOG_ERROR(priv, FW_MSG,
151 "Message from TOP with unknown category 0x%X\n",
152 msg->hdr.category);
153 break;
154 }
155}
156
157int iwmct_send_hcmd(struct iwmct_priv *priv, u8 *cmd, u16 len)
158{
159 int ret;
160 u8 *buf;
161
162 LOG_INFOEX(priv, FW_MSG, "Sending hcmd:\n");
163
164 /* add padding to 256 for IWMC */
165 ((struct top_msg *)cmd)->hdr.flags |= CMD_FLAG_PADDING_256;
166
167 LOG_HEXDUMP(FW_MSG, cmd, len);
168
169 if (len > FW_HCMD_BLOCK_SIZE) {
170 LOG_ERROR(priv, FW_MSG, "size %d exceeded hcmd max size %d\n",
171 len, FW_HCMD_BLOCK_SIZE);
172 return -1;
173 }
174
175 buf = kzalloc(FW_HCMD_BLOCK_SIZE, GFP_KERNEL);
176 if (!buf) {
177 LOG_ERROR(priv, FW_MSG, "kzalloc error, buf size %d\n",
178 FW_HCMD_BLOCK_SIZE);
179 return -1;
180 }
181
182 memcpy(buf, cmd, len);
183
184 sdio_claim_host(priv->func);
185 ret = sdio_memcpy_toio(priv->func, IWMC_SDIO_DATA_ADDR, buf,
186 FW_HCMD_BLOCK_SIZE);
187 sdio_release_host(priv->func);
188
189 kfree(buf);
190 return ret;
191}
192
193int iwmct_tx(struct iwmct_priv *priv, unsigned int addr,
194 void *src, int count)
195{
196 int ret;
197
198 sdio_claim_host(priv->func);
199 ret = sdio_memcpy_toio(priv->func, addr, src, count);
200 sdio_release_host(priv->func);
201
202 return ret;
203}
204
205static void iwmct_irq_read_worker(struct work_struct *ws)
206{
207 struct iwmct_priv *priv;
208 struct iwmct_work_struct *read_req;
209 __le32 *buf = NULL;
210 int ret;
211 int iosize;
212 u32 barker;
213 bool is_barker;
214
215 priv = container_of(ws, struct iwmct_priv, isr_worker);
216
217 LOG_INFO(priv, IRQ, "enter iwmct_irq_read_worker %p\n", ws);
218
219 /* --------------------- Handshake with device -------------------- */
220 sdio_claim_host(priv->func);
221
222 /* all list manipulations have to be protected by
223 * sdio_claim_host/sdio_release_host */
224 if (list_empty(&priv->read_req_list)) {
225 LOG_ERROR(priv, IRQ, "read_req_list empty in read worker\n");
226 goto exit_release;
227 }
228
229 read_req = list_entry(priv->read_req_list.next,
230 struct iwmct_work_struct, list);
231
232 list_del(&read_req->list);
233 iosize = read_req->iosize;
234 kfree(read_req);
235
236 buf = kzalloc(iosize, GFP_KERNEL);
237 if (!buf) {
238 LOG_ERROR(priv, IRQ, "kzalloc error, buf size %d\n", iosize);
239 goto exit_release;
240 }
241
242 LOG_INFO(priv, IRQ, "iosize=%d, buf=%p, func=%d\n",
243 iosize, buf, priv->func->num);
244
245 /* read from device */
246 ret = sdio_memcpy_fromio(priv->func, buf, IWMC_SDIO_DATA_ADDR, iosize);
247 if (ret) {
248 LOG_ERROR(priv, IRQ, "error %d reading buffer\n", ret);
249 goto exit_release;
250 }
251
252 LOG_HEXDUMP(IRQ, (u8 *)buf, iosize);
253
254 barker = le32_to_cpu(buf[0]);
255
256 /* Verify whether it's a barker and if not - treat as regular Rx */
257 if (barker == IWMC_BARKER_ACK ||
258 (barker & BARKER_DNLOAD_BARKER_MSK) == IWMC_BARKER_REBOOT) {
259
260 /* Valid Barker is equal on first 4 dwords */
261 is_barker = (buf[1] == buf[0]) &&
262 (buf[2] == buf[0]) &&
263 (buf[3] == buf[0]);
264
265 if (!is_barker) {
266 LOG_WARNING(priv, IRQ,
267 "Potentially inconsistent barker "
268 "%08X_%08X_%08X_%08X\n",
269 le32_to_cpu(buf[0]), le32_to_cpu(buf[1]),
270 le32_to_cpu(buf[2]), le32_to_cpu(buf[3]));
271 }
272 } else {
273 is_barker = false;
274 }
275
276 /* Handle Top CommHub message */
277 if (!is_barker) {
278 sdio_release_host(priv->func);
279 handle_top_message(priv, (u8 *)buf, iosize);
280 goto exit;
281 } else if (barker == IWMC_BARKER_ACK) { /* Handle barkers */
282 if (atomic_read(&priv->dev_sync) == 0) {
283 LOG_ERROR(priv, IRQ,
284 "ACK barker arrived out-of-sync\n");
285 goto exit_release;
286 }
287
288 /* Continuing to FW download (after Sync is completed)*/
289 atomic_set(&priv->dev_sync, 0);
290 LOG_INFO(priv, IRQ, "ACK barker arrived "
291 "- starting FW download\n");
292 } else { /* REBOOT barker */
293 LOG_INFO(priv, IRQ, "Recieved reboot barker: %x\n", barker);
294 priv->barker = barker;
295
296 if (barker & BARKER_DNLOAD_SYNC_MSK) {
297 /* Send the same barker back */
298 ret = sdio_memcpy_toio(priv->func, IWMC_SDIO_DATA_ADDR,
299 buf, iosize);
300 if (ret) {
301 LOG_ERROR(priv, IRQ,
302 "error %d echoing barker\n", ret);
303 goto exit_release;
304 }
305 LOG_INFO(priv, IRQ, "Echoing barker to device\n");
306 atomic_set(&priv->dev_sync, 1);
307 goto exit_release;
308 }
309
310 /* Continuing to FW download (without Sync) */
311 LOG_INFO(priv, IRQ, "No sync requested "
312 "- starting FW download\n");
313 }
314
315 sdio_release_host(priv->func);
316
317
318 LOG_INFO(priv, IRQ, "barker download request 0x%x is:\n", priv->barker);
319 LOG_INFO(priv, IRQ, "******* Top FW %s requested ********\n",
320 (priv->barker & BARKER_DNLOAD_TOP_MSK) ? "was" : "not");
321 LOG_INFO(priv, IRQ, "******* GPS FW %s requested ********\n",
322 (priv->barker & BARKER_DNLOAD_GPS_MSK) ? "was" : "not");
323 LOG_INFO(priv, IRQ, "******* BT FW %s requested ********\n",
324 (priv->barker & BARKER_DNLOAD_BT_MSK) ? "was" : "not");
325
326 if (priv->dbg.fw_download)
327 iwmct_fw_load(priv);
328 else
329 LOG_ERROR(priv, IRQ, "FW download not allowed\n");
330
331 goto exit;
332
333exit_release:
334 sdio_release_host(priv->func);
335exit:
336 kfree(buf);
337 LOG_INFO(priv, IRQ, "exit iwmct_irq_read_worker\n");
338}
339
340static void iwmct_irq(struct sdio_func *func)
341{
342 struct iwmct_priv *priv;
343 int val, ret;
344 int iosize;
345 int addr = IWMC_SDIO_INTR_GET_SIZE_ADDR;
346 struct iwmct_work_struct *read_req;
347
348 priv = sdio_get_drvdata(func);
349
350 LOG_INFO(priv, IRQ, "enter iwmct_irq\n");
351
352 /* read the function's status register */
353 val = sdio_readb(func, IWMC_SDIO_INTR_STATUS_ADDR, &ret);
354
355 LOG_INFO(priv, IRQ, "iir value = %d, ret=%d\n", val, ret);
356
357 if (!val) {
358 LOG_ERROR(priv, IRQ, "iir = 0, exiting ISR\n");
359 goto exit_clear_intr;
360 }
361
362
363 /*
364 * read 2 bytes of the transaction size
365 * IMPORTANT: sdio transaction size has to be read before clearing
366 * sdio interrupt!!!
367 */
368 val = sdio_readb(priv->func, addr++, &ret);
369 iosize = val;
370 val = sdio_readb(priv->func, addr++, &ret);
371 iosize += val << 8;
372
373 LOG_INFO(priv, IRQ, "READ size %d\n", iosize);
374
375 if (iosize == 0) {
376 LOG_ERROR(priv, IRQ, "READ size %d, exiting ISR\n", iosize);
377 goto exit_clear_intr;
378 }
379
380 /* allocate a work structure to pass iosize to the worker */
381 read_req = kzalloc(sizeof(struct iwmct_work_struct), GFP_KERNEL);
382 if (!read_req) {
383 LOG_ERROR(priv, IRQ, "failed to allocate read_req, exit ISR\n");
384 goto exit_clear_intr;
385 }
386
387 INIT_LIST_HEAD(&read_req->list);
388 read_req->iosize = iosize;
389
390 list_add_tail(&priv->read_req_list, &read_req->list);
391
392 /* clear the function's interrupt request bit (write 1 to clear) */
393 sdio_writeb(func, 1, IWMC_SDIO_INTR_CLEAR_ADDR, &ret);
394
395 queue_work(priv->wq, &priv->isr_worker);
396
397 LOG_INFO(priv, IRQ, "exit iwmct_irq\n");
398
399 return;
400
401exit_clear_intr:
402 /* clear the function's interrupt request bit (write 1 to clear) */
403 sdio_writeb(func, 1, IWMC_SDIO_INTR_CLEAR_ADDR, &ret);
404}
405
406
407static int blocks;
408module_param(blocks, int, 0604);
409MODULE_PARM_DESC(blocks, "max_blocks_to_send");
410
411static int dump;
412module_param(dump, bool, 0604);
413MODULE_PARM_DESC(dump, "dump_hex_content");
414
415static int jump = 1;
416module_param(jump, bool, 0604);
417
418static int direct = 1;
419module_param(direct, bool, 0604);
420
421static int checksum = 1;
422module_param(checksum, bool, 0604);
423
424static int fw_download = 1;
425module_param(fw_download, bool, 0604);
426
427static int block_size = IWMC_SDIO_BLK_SIZE;
428module_param(block_size, int, 0404);
429
430static int download_trans_blks = IWMC_DEFAULT_TR_BLK;
431module_param(download_trans_blks, int, 0604);
432
433static int rubbish_barker;
434module_param(rubbish_barker, bool, 0604);
435
436#ifdef CONFIG_IWMC3200TOP_DEBUG
437static int log_level[LOG_SRC_MAX];
438static unsigned int log_level_argc;
439module_param_array(log_level, int, &log_level_argc, 0604);
440MODULE_PARM_DESC(log_level, "log_level");
441
442static int log_level_fw[FW_LOG_SRC_MAX];
443static unsigned int log_level_fw_argc;
444module_param_array(log_level_fw, int, &log_level_fw_argc, 0604);
445MODULE_PARM_DESC(log_level_fw, "log_level_fw");
446#endif
447
448void iwmct_dbg_init_params(struct iwmct_priv *priv)
449{
450#ifdef CONFIG_IWMC3200TOP_DEBUG
451 int i;
452
453 for (i = 0; i < log_level_argc; i++) {
454 dev_notice(&priv->func->dev, "log_level[%d]=0x%X\n",
455 i, log_level[i]);
456 iwmct_log_set_filter((log_level[i] >> 8) & 0xFF,
457 log_level[i] & 0xFF);
458 }
459 for (i = 0; i < log_level_fw_argc; i++) {
460 dev_notice(&priv->func->dev, "log_level_fw[%d]=0x%X\n",
461 i, log_level_fw[i]);
462 iwmct_log_set_fw_filter((log_level_fw[i] >> 8) & 0xFF,
463 log_level_fw[i] & 0xFF);
464 }
465#endif
466
467 priv->dbg.blocks = blocks;
468 LOG_INFO(priv, INIT, "blocks=%d\n", blocks);
469 priv->dbg.dump = (bool)dump;
470 LOG_INFO(priv, INIT, "dump=%d\n", dump);
471 priv->dbg.jump = (bool)jump;
472 LOG_INFO(priv, INIT, "jump=%d\n", jump);
473 priv->dbg.direct = (bool)direct;
474 LOG_INFO(priv, INIT, "direct=%d\n", direct);
475 priv->dbg.checksum = (bool)checksum;
476 LOG_INFO(priv, INIT, "checksum=%d\n", checksum);
477 priv->dbg.fw_download = (bool)fw_download;
478 LOG_INFO(priv, INIT, "fw_download=%d\n", fw_download);
479 priv->dbg.block_size = block_size;
480 LOG_INFO(priv, INIT, "block_size=%d\n", block_size);
481 priv->dbg.download_trans_blks = download_trans_blks;
482 LOG_INFO(priv, INIT, "download_trans_blks=%d\n", download_trans_blks);
483}
484
485/*****************************************************************************
486 *
487 * sysfs attributes
488 *
489 *****************************************************************************/
490static ssize_t show_iwmct_fw_version(struct device *d,
491 struct device_attribute *attr, char *buf)
492{
493 struct iwmct_priv *priv = dev_get_drvdata(d);
494 return sprintf(buf, "%s\n", priv->dbg.label_fw);
495}
496static DEVICE_ATTR(cc_label_fw, S_IRUGO, show_iwmct_fw_version, NULL);
497
498#ifdef CONFIG_IWMC3200TOP_DEBUG
499static DEVICE_ATTR(log_level, S_IWUSR | S_IRUGO,
500 show_iwmct_log_level, store_iwmct_log_level);
501static DEVICE_ATTR(log_level_fw, S_IWUSR | S_IRUGO,
502 show_iwmct_log_level_fw, store_iwmct_log_level_fw);
503#endif
504
505static struct attribute *iwmct_sysfs_entries[] = {
506 &dev_attr_cc_label_fw.attr,
507#ifdef CONFIG_IWMC3200TOP_DEBUG
508 &dev_attr_log_level.attr,
509 &dev_attr_log_level_fw.attr,
510#endif
511 NULL
512};
513
514static struct attribute_group iwmct_attribute_group = {
515 .name = NULL, /* put in device directory */
516 .attrs = iwmct_sysfs_entries,
517};
518
519
520static int iwmct_probe(struct sdio_func *func,
521 const struct sdio_device_id *id)
522{
523 struct iwmct_priv *priv;
524 int ret;
525 int val = 1;
526 int addr = IWMC_SDIO_INTR_ENABLE_ADDR;
527
528 dev_dbg(&func->dev, "enter iwmct_probe\n");
529
530 dev_dbg(&func->dev, "IRQ polling period id %u msecs, HZ is %d\n",
531 jiffies_to_msecs(2147483647), HZ);
532
533 priv = kzalloc(sizeof(struct iwmct_priv), GFP_KERNEL);
534 if (!priv) {
535 dev_err(&func->dev, "kzalloc error\n");
536 return -ENOMEM;
537 }
538 priv->func = func;
539 sdio_set_drvdata(func, priv);
540
541
542 /* create drivers work queue */
543 priv->wq = create_workqueue(DRV_NAME "_wq");
544 priv->bus_rescan_wq = create_workqueue(DRV_NAME "_rescan_wq");
545 INIT_WORK(&priv->bus_rescan_worker, iwmct_rescan_worker);
546 INIT_WORK(&priv->isr_worker, iwmct_irq_read_worker);
547
548 init_waitqueue_head(&priv->wait_q);
549
550 sdio_claim_host(func);
551 /* FIXME: Remove after it is fixed in the Boot ROM upgrade */
552 func->enable_timeout = 10;
553
554 /* In our HW, setting the block size also wakes up the boot rom. */
555 ret = sdio_set_block_size(func, priv->dbg.block_size);
556 if (ret) {
557 LOG_ERROR(priv, INIT,
558 "sdio_set_block_size() failure: %d\n", ret);
559 goto error_sdio_enable;
560 }
561
562 ret = sdio_enable_func(func);
563 if (ret) {
564 LOG_ERROR(priv, INIT, "sdio_enable_func() failure: %d\n", ret);
565 goto error_sdio_enable;
566 }
567
568 /* init reset and dev_sync states */
569 atomic_set(&priv->reset, 0);
570 atomic_set(&priv->dev_sync, 0);
571
572 /* init read req queue */
573 INIT_LIST_HEAD(&priv->read_req_list);
574
575 /* process configurable parameters */
576 iwmct_dbg_init_params(priv);
577 ret = sysfs_create_group(&func->dev.kobj, &iwmct_attribute_group);
578 if (ret) {
579 LOG_ERROR(priv, INIT, "Failed to register attributes and "
580 "initialize module_params\n");
581 goto error_dev_attrs;
582 }
583
584 iwmct_dbgfs_register(priv, DRV_NAME);
585
586 if (!priv->dbg.direct && priv->dbg.download_trans_blks > 8) {
587 LOG_INFO(priv, INIT,
588 "Reducing transaction to 8 blocks = 2K (from %d)\n",
589 priv->dbg.download_trans_blks);
590 priv->dbg.download_trans_blks = 8;
591 }
592 priv->trans_len = priv->dbg.download_trans_blks * priv->dbg.block_size;
593 LOG_INFO(priv, INIT, "Transaction length = %d\n", priv->trans_len);
594
595 ret = sdio_claim_irq(func, iwmct_irq);
596 if (ret) {
597 LOG_ERROR(priv, INIT, "sdio_claim_irq() failure: %d\n", ret);
598 goto error_claim_irq;
599 }
600
601
602 /* Enable function's interrupt */
603 sdio_writeb(priv->func, val, addr, &ret);
604 if (ret) {
605 LOG_ERROR(priv, INIT, "Failure writing to "
606 "Interrupt Enable Register (%d): %d\n", addr, ret);
607 goto error_enable_int;
608 }
609
610 sdio_release_host(func);
611
612 LOG_INFO(priv, INIT, "exit iwmct_probe\n");
613
614 return ret;
615
616error_enable_int:
617 sdio_release_irq(func);
618error_claim_irq:
619 sdio_disable_func(func);
620error_dev_attrs:
621 iwmct_dbgfs_unregister(priv->dbgfs);
622 sysfs_remove_group(&func->dev.kobj, &iwmct_attribute_group);
623error_sdio_enable:
624 sdio_release_host(func);
625 return ret;
626}
627
628static void iwmct_remove(struct sdio_func *func)
629{
630 struct iwmct_work_struct *read_req;
631 struct iwmct_priv *priv = sdio_get_drvdata(func);
632
633 priv = sdio_get_drvdata(func);
634
635 LOG_INFO(priv, INIT, "enter\n");
636
637 sdio_claim_host(func);
638 sdio_release_irq(func);
639 sdio_release_host(func);
640
641 /* Safely destroy osc workqueue */
642 destroy_workqueue(priv->bus_rescan_wq);
643 destroy_workqueue(priv->wq);
644
645 sdio_claim_host(func);
646 sdio_disable_func(func);
647 sysfs_remove_group(&func->dev.kobj, &iwmct_attribute_group);
648 iwmct_dbgfs_unregister(priv->dbgfs);
649 sdio_release_host(func);
650
651 /* free read requests */
652 while (!list_empty(&priv->read_req_list)) {
653 read_req = list_entry(priv->read_req_list.next,
654 struct iwmct_work_struct, list);
655
656 list_del(&read_req->list);
657 kfree(read_req);
658 }
659
660 kfree(priv);
661}
662
663
664static const struct sdio_device_id iwmct_ids[] = {
665 { SDIO_DEVICE(SDIO_INTEL_VENDOR_ID, SDIO_DEVICE_ID_INTEL_IWMC3200TOP)},
666 { /* end: all zeroes */ },
667};
668
669MODULE_DEVICE_TABLE(sdio, iwmct_ids);
670
671static struct sdio_driver iwmct_driver = {
672 .probe = iwmct_probe,
673 .remove = iwmct_remove,
674 .name = DRV_NAME,
675 .id_table = iwmct_ids,
676};
677
678static int __init iwmct_init(void)
679{
680 int rc;
681
682 /* Default log filter settings */
683 iwmct_log_set_filter(LOG_SRC_ALL, LOG_SEV_FILTER_RUNTIME);
684 iwmct_log_set_filter(LOG_SRC_FW_MSG, LOG_SEV_FILTER_ALL);
685 iwmct_log_set_fw_filter(LOG_SRC_ALL, FW_LOG_SEV_FILTER_RUNTIME);
686
687 rc = sdio_register_driver(&iwmct_driver);
688
689 return rc;
690}
691
692static void __exit iwmct_exit(void)
693{
694 sdio_unregister_driver(&iwmct_driver);
695}
696
697module_init(iwmct_init);
698module_exit(iwmct_exit);
699
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-25 12:35:02 -0500