2 * This file is part of stlc45xx
4 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
6 * Contact: Kalle Valo <kalle.valo@nokia.com>
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
24 #include <linux/mutex.h>
25 #include <linux/list.h>
26 #include <net/mac80211.h>
28 #include "stlc45xx_lmac.h"
30 #define DRIVER_NAME "stlc45xx"
31 #define DRIVER_VERSION "0.1.3"
33 #define DRIVER_PREFIX DRIVER_NAME ": "
41 DEBUG_RX_CONTENT = 1 << 5,
43 DEBUG_TX_CONTENT = 1 << 8,
44 DEBUG_TXBUFFER = 1 << 9,
45 DEBUG_QUEUE = 1 << 10,
51 #define DEBUG_LEVEL DEBUG_NONE
52 /* #define DEBUG_LEVEL DEBUG_ALL */
53 /* #define DEBUG_LEVEL (DEBUG_TX | DEBUG_RX | DEBUG_IRQ) */
54 /* #define DEBUG_LEVEL (DEBUG_TX | DEBUG_MEMREGION | DEBUG_QUEUE) */
55 /* #define DEBUG_LEVEL (DEBUG_MEMREGION | DEBUG_QUEUE) */
57 #define stlc45xx_error(fmt, arg...) \
58 printk(KERN_ERR DRIVER_PREFIX "ERROR " fmt "\n", ##arg)
60 #define stlc45xx_warning(fmt, arg...) \
61 printk(KERN_WARNING DRIVER_PREFIX "WARNING " fmt "\n", ##arg)
63 #define stlc45xx_info(fmt, arg...) \
64 printk(KERN_INFO DRIVER_PREFIX fmt "\n", ##arg)
66 #define stlc45xx_debug(level, fmt, arg...) \
68 if (level & DEBUG_LEVEL) \
69 printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg); \
72 #define stlc45xx_dump(level, buf, len) \
74 if (level & DEBUG_LEVEL) \
75 print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, \
76 16, 1, buf, len, 1); \
79 #define MAC2STR(a) ((a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5])
80 #define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x"
82 /* Bit 15 is read/write bit; ON = READ, OFF = WRITE */
83 #define ADDR_READ_BIT_15 0x8000
85 #define SPI_ADRS_ARM_INTERRUPTS 0x00
86 #define SPI_ADRS_ARM_INT_EN 0x04
88 #define SPI_ADRS_HOST_INTERRUPTS 0x08
89 #define SPI_ADRS_HOST_INT_EN 0x0c
90 #define SPI_ADRS_HOST_INT_ACK 0x10
92 #define SPI_ADRS_GEN_PURP_1 0x14
93 #define SPI_ADRS_GEN_PURP_2 0x18
96 #define SPI_ADRS_DEV_CTRL_STAT 0x26
98 #define SPI_ADRS_DMA_DATA 0x28
100 #define SPI_ADRS_DMA_WRITE_CTRL 0x2c
101 #define SPI_ADRS_DMA_WRITE_LEN 0x2e
102 #define SPI_ADRS_DMA_WRITE_BASE 0x30
104 #define SPI_ADRS_DMA_READ_CTRL 0x34
105 #define SPI_ADRS_DMA_READ_LEN 0x36
106 #define SPI_ADRS_DMA_READ_BASE 0x38
108 #define SPI_CTRL_STAT_HOST_OVERRIDE 0x8000
109 #define SPI_CTRL_STAT_START_HALTED 0x4000
110 #define SPI_CTRL_STAT_RAM_BOOT 0x2000
111 #define SPI_CTRL_STAT_HOST_RESET 0x1000
112 #define SPI_CTRL_STAT_HOST_CPU_EN 0x0800
114 #define SPI_DMA_WRITE_CTRL_ENABLE 0x0001
115 #define SPI_DMA_READ_CTRL_ENABLE 0x0001
116 #define HOST_ALLOWED (1 << 7)
118 #define FIRMWARE_ADDRESS 0x20000
120 #define SPI_TIMEOUT 100 /* msec */
122 #define SPI_MAX_TX_PACKETS 32
124 #define SPI_MAX_PACKET_SIZE 32767
126 #define SPI_TARGET_INT_WAKEUP 0x00000001
127 #define SPI_TARGET_INT_SLEEP 0x00000002
128 #define SPI_TARGET_INT_RDDONE 0x00000004
130 #define SPI_TARGET_INT_CTS 0x00004000
131 #define SPI_TARGET_INT_DR 0x00008000
133 #define SPI_HOST_INT_READY 0x00000001
134 #define SPI_HOST_INT_WR_READY 0x00000002
135 #define SPI_HOST_INT_SW_UPDATE 0x00000004
136 #define SPI_HOST_INT_UPDATE 0x10000000
139 #define SPI_HOST_INT_CTS 0x00004000
142 #define SPI_HOST_INT_DR 0x00008000
144 #define SPI_HOST_INTS_DEFAULT \
145 (SPI_HOST_INT_READY | SPI_HOST_INT_UPDATE | SPI_HOST_INT_SW_UPDATE)
147 #define TARGET_BOOT_SLEEP 50
149 /* The firmware buffer is divided into three areas:
151 * o config area (for control commands)
155 #define FIRMWARE_BUFFER_START 0x20200
156 #define FIRMWARE_BUFFER_END 0x27c60
157 #define FIRMWARE_BUFFER_LEN (FIRMWARE_BUFFER_END - FIRMWARE_BUFFER_START)
158 #define FIRMWARE_MTU 3240
159 #define FIRMWARE_CONFIG_PAYLOAD_LEN 1024
160 #define FIRMWARE_CONFIG_START FIRMWARE_BUFFER_START
161 #define FIRMWARE_CONFIG_LEN (sizeof(struct s_lm_control) + \
162 FIRMWARE_CONFIG_PAYLOAD_LEN)
163 #define FIRMWARE_CONFIG_END (FIRMWARE_CONFIG_START + FIRMWARE_CONFIG_LEN - 1)
164 #define FIRMWARE_RXBUFFER_LEN (5 * FIRMWARE_MTU + 1024)
165 #define FIRMWARE_RXBUFFER_START (FIRMWARE_BUFFER_END - FIRMWARE_RXBUFFER_LEN)
166 #define FIRMWARE_RXBUFFER_END (FIRMWARE_RXBUFFER_START + \
167 FIRMWARE_RXBUFFER_LEN - 1)
168 #define FIRMWARE_TXBUFFER_START (FIRMWARE_BUFFER_START + FIRMWARE_CONFIG_LEN)
169 #define FIRMWARE_TXBUFFER_LEN (FIRMWARE_BUFFER_LEN - FIRMWARE_CONFIG_LEN - \
170 FIRMWARE_RXBUFFER_LEN)
171 #define FIRMWARE_TXBUFFER_END (FIRMWARE_TXBUFFER_START + \
172 FIRMWARE_TXBUFFER_LEN - 1)
174 #define FIRMWARE_TXBUFFER_HEADER 100
175 #define FIRMWARE_TXBUFFER_TRAILER 4
177 /* FIXME: come up with a proper value */
178 #define MAX_FRAME_LEN 2500
181 #define TX_FRAME_LIFETIME 2000
182 #define TX_TIMEOUT 4000
184 #define SUPPORTED_CHANNELS 13
187 /* #define CHANNEL_CAL_LEN offsetof(struct s_lmo_scan, bratemask) - \ */
188 /* offsetof(struct s_lmo_scan, channel) */
189 #define CHANNEL_CAL_LEN 292
190 #define CHANNEL_CAL_ARRAY_LEN (SUPPORTED_CHANNELS * CHANNEL_CAL_LEN)
192 /* #define RSSI_CAL_LEN sizeof(struct s_lmo_scan) - \ */
193 /* offsetof(struct s_lmo_scan, rssical) */
194 #define RSSI_CAL_LEN 8
195 #define RSSI_CAL_ARRAY_LEN (SUPPORTED_CHANNELS * RSSI_CAL_LEN)
203 struct stlc45xx_ie_tim {
211 /* can be removed when switched to skb queue */
212 struct list_head tx_list;
214 struct list_head buffer_list;
228 unsigned long lifetime;
240 struct ieee80211_hw *hw;
241 struct spi_device *spi;
242 struct work_struct work;
243 struct work_struct work_reset;
244 struct delayed_work work_tx_timeout;
246 struct completion fw_comp;
250 u8 mac_addr[ETH_ALEN];
256 enum fw_state fw_state;
260 /* protected by tx_lock */
261 struct list_head txbuffer;
263 /* protected by tx_lock */
264 struct list_head tx_pending;
266 /* protected by tx_lock */
267 int tx_queue_stopped;
269 /* protected by mutex */
270 struct list_head tx_sent;