1 // SPDX-License-Identifier: GPL-2.0-only
3 * This file contains functions used in USB interface module.
6 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
8 #include <linux/delay.h>
9 #include <linux/module.h>
10 #include <linux/firmware.h>
11 #include <linux/netdevice.h>
12 #include <linux/slab.h>
13 #include <linux/usb.h>
14 #include <linux/olpc-ec.h>
20 #define DRV_NAME "usb8xxx"
30 #define lbs_deb_usb2(...) do { if (INSANEDEBUG) lbs_deb_usbd(__VA_ARGS__); } while (0)
32 #define MESSAGE_HEADER_LEN 4
34 MODULE_FIRMWARE("libertas/usb8388_v9.bin");
35 MODULE_FIRMWARE("libertas/usb8388_v5.bin");
36 MODULE_FIRMWARE("libertas/usb8388.bin");
37 MODULE_FIRMWARE("libertas/usb8682.bin");
38 MODULE_FIRMWARE("usb8388.bin");
46 /* table of firmware file names */
47 static const struct lbs_fw_table fw_table
[] = {
48 { MODEL_8388
, "libertas/usb8388_olpc.bin", NULL
},
49 { MODEL_8388
, "libertas/usb8388_v9.bin", NULL
},
50 { MODEL_8388
, "libertas/usb8388_v5.bin", NULL
},
51 { MODEL_8388
, "libertas/usb8388.bin", NULL
},
52 { MODEL_8388
, "usb8388.bin", NULL
},
53 { MODEL_8682
, "libertas/usb8682.bin", NULL
}
56 static const struct usb_device_id if_usb_table
[] = {
57 /* Enter the device signature inside */
58 { USB_DEVICE(0x1286, 0x2001), .driver_info
= MODEL_8388
},
59 { USB_DEVICE(0x05a3, 0x8388), .driver_info
= MODEL_8388
},
60 {} /* Terminating entry */
63 MODULE_DEVICE_TABLE(usb
, if_usb_table
);
65 static void if_usb_receive(struct urb
*urb
);
66 static void if_usb_receive_fwload(struct urb
*urb
);
67 static void if_usb_prog_firmware(struct lbs_private
*priv
, int ret
,
68 const struct firmware
*fw
,
69 const struct firmware
*unused
);
70 static int if_usb_host_to_card(struct lbs_private
*priv
, uint8_t type
,
71 uint8_t *payload
, uint16_t nb
);
72 static int usb_tx_block(struct if_usb_card
*cardp
, uint8_t *payload
,
74 static void if_usb_free(struct if_usb_card
*cardp
);
75 static int if_usb_submit_rx_urb(struct if_usb_card
*cardp
);
76 static int if_usb_reset_device(struct if_usb_card
*cardp
);
79 * if_usb_write_bulk_callback - callback function to handle the status
81 * @urb: pointer to &urb structure
84 static void if_usb_write_bulk_callback(struct urb
*urb
)
86 struct if_usb_card
*cardp
= (struct if_usb_card
*) urb
->context
;
88 /* handle the transmission complete validations */
90 if (urb
->status
== 0) {
91 struct lbs_private
*priv
= cardp
->priv
;
93 lbs_deb_usb2(&urb
->dev
->dev
, "URB status is successful\n");
94 lbs_deb_usb2(&urb
->dev
->dev
, "Actual length transmitted %d\n",
97 /* Boot commands such as UPDATE_FW and UPDATE_BOOT2 are not
98 * passed up to the lbs level.
100 if (priv
&& priv
->dnld_sent
!= DNLD_BOOTCMD_SENT
)
101 lbs_host_to_card_done(priv
);
103 /* print the failure status number for debug */
104 pr_info("URB in failure status: %d\n", urb
->status
);
109 * if_usb_free - free tx/rx urb, skb and rx buffer
110 * @cardp: pointer to &if_usb_card
113 static void if_usb_free(struct if_usb_card
*cardp
)
115 /* Unlink tx & rx urb */
116 usb_kill_urb(cardp
->tx_urb
);
117 usb_kill_urb(cardp
->rx_urb
);
119 usb_free_urb(cardp
->tx_urb
);
120 cardp
->tx_urb
= NULL
;
122 usb_free_urb(cardp
->rx_urb
);
123 cardp
->rx_urb
= NULL
;
125 kfree(cardp
->ep_out_buf
);
126 cardp
->ep_out_buf
= NULL
;
129 static void if_usb_setup_firmware(struct lbs_private
*priv
)
131 struct if_usb_card
*cardp
= priv
->card
;
132 struct cmd_ds_set_boot2_ver b2_cmd
;
133 struct cmd_ds_802_11_fw_wake_method wake_method
;
135 b2_cmd
.hdr
.size
= cpu_to_le16(sizeof(b2_cmd
));
137 b2_cmd
.version
= cardp
->boot2_version
;
139 if (lbs_cmd_with_response(priv
, CMD_SET_BOOT2_VER
, &b2_cmd
))
140 lbs_deb_usb("Setting boot2 version failed\n");
142 priv
->wol_gpio
= 2; /* Wake via GPIO2... */
143 priv
->wol_gap
= 20; /* ... after 20ms */
144 lbs_host_sleep_cfg(priv
, EHS_WAKE_ON_UNICAST_DATA
,
145 (struct wol_config
*) NULL
);
147 wake_method
.hdr
.size
= cpu_to_le16(sizeof(wake_method
));
148 wake_method
.action
= cpu_to_le16(CMD_ACT_GET
);
149 if (lbs_cmd_with_response(priv
, CMD_802_11_FW_WAKE_METHOD
, &wake_method
)) {
150 netdev_info(priv
->dev
, "Firmware does not seem to support PS mode\n");
151 priv
->fwcapinfo
&= ~FW_CAPINFO_PS
;
153 if (le16_to_cpu(wake_method
.method
) == CMD_WAKE_METHOD_COMMAND_INT
) {
154 lbs_deb_usb("Firmware seems to support PS with wake-via-command\n");
156 /* The versions which boot up this way don't seem to
157 work even if we set it to the command interrupt */
158 priv
->fwcapinfo
&= ~FW_CAPINFO_PS
;
159 netdev_info(priv
->dev
,
160 "Firmware doesn't wake via command interrupt; disabling PS mode\n");
165 static void if_usb_fw_timeo(struct timer_list
*t
)
167 struct if_usb_card
*cardp
= from_timer(cardp
, t
, fw_timeout
);
169 if (cardp
->fwdnldover
) {
170 lbs_deb_usb("Download complete, no event. Assuming success\n");
172 pr_err("Download timed out\n");
173 cardp
->surprise_removed
= 1;
175 wake_up(&cardp
->fw_wq
);
179 static void if_usb_reset_olpc_card(struct lbs_private
*priv
)
181 printk(KERN_CRIT
"Resetting OLPC wireless via EC...\n");
182 olpc_ec_cmd(0x25, NULL
, 0, NULL
, 0);
187 * if_usb_probe - sets the configuration values
188 * @intf: &usb_interface pointer
189 * @id: pointer to usb_device_id
190 * returns: 0 on success, error code on failure
192 static int if_usb_probe(struct usb_interface
*intf
,
193 const struct usb_device_id
*id
)
195 struct usb_device
*udev
;
196 struct usb_host_interface
*iface_desc
;
197 struct usb_endpoint_descriptor
*endpoint
;
198 struct lbs_private
*priv
;
199 struct if_usb_card
*cardp
;
203 udev
= interface_to_usbdev(intf
);
205 cardp
= kzalloc(sizeof(struct if_usb_card
), GFP_KERNEL
);
209 timer_setup(&cardp
->fw_timeout
, if_usb_fw_timeo
, 0);
210 init_waitqueue_head(&cardp
->fw_wq
);
213 cardp
->model
= (uint32_t) id
->driver_info
;
214 iface_desc
= intf
->cur_altsetting
;
216 lbs_deb_usbd(&udev
->dev
, "bcdUSB = 0x%X bDeviceClass = 0x%X"
217 " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n",
218 le16_to_cpu(udev
->descriptor
.bcdUSB
),
219 udev
->descriptor
.bDeviceClass
,
220 udev
->descriptor
.bDeviceSubClass
,
221 udev
->descriptor
.bDeviceProtocol
);
223 for (i
= 0; i
< iface_desc
->desc
.bNumEndpoints
; ++i
) {
224 endpoint
= &iface_desc
->endpoint
[i
].desc
;
225 if (usb_endpoint_is_bulk_in(endpoint
)) {
226 cardp
->ep_in_size
= le16_to_cpu(endpoint
->wMaxPacketSize
);
227 cardp
->ep_in
= usb_endpoint_num(endpoint
);
229 lbs_deb_usbd(&udev
->dev
, "in_endpoint = %d\n", cardp
->ep_in
);
230 lbs_deb_usbd(&udev
->dev
, "Bulk in size is %d\n", cardp
->ep_in_size
);
232 } else if (usb_endpoint_is_bulk_out(endpoint
)) {
233 cardp
->ep_out_size
= le16_to_cpu(endpoint
->wMaxPacketSize
);
234 cardp
->ep_out
= usb_endpoint_num(endpoint
);
236 lbs_deb_usbd(&udev
->dev
, "out_endpoint = %d\n", cardp
->ep_out
);
237 lbs_deb_usbd(&udev
->dev
, "Bulk out size is %d\n", cardp
->ep_out_size
);
240 if (!cardp
->ep_out_size
|| !cardp
->ep_in_size
) {
241 lbs_deb_usbd(&udev
->dev
, "Endpoints not found\n");
244 if (!(cardp
->rx_urb
= usb_alloc_urb(0, GFP_KERNEL
))) {
245 lbs_deb_usbd(&udev
->dev
, "Rx URB allocation failed\n");
248 if (!(cardp
->tx_urb
= usb_alloc_urb(0, GFP_KERNEL
))) {
249 lbs_deb_usbd(&udev
->dev
, "Tx URB allocation failed\n");
252 cardp
->ep_out_buf
= kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE
, GFP_KERNEL
);
253 if (!cardp
->ep_out_buf
) {
254 lbs_deb_usbd(&udev
->dev
, "Could not allocate buffer\n");
258 priv
= lbs_add_card(cardp
, &intf
->dev
);
266 priv
->hw_host_to_card
= if_usb_host_to_card
;
267 priv
->enter_deep_sleep
= NULL
;
268 priv
->exit_deep_sleep
= NULL
;
269 priv
->reset_deep_sleep_wakeup
= NULL
;
270 priv
->is_polling
= false;
272 if (machine_is_olpc())
273 priv
->reset_card
= if_usb_reset_olpc_card
;
276 cardp
->boot2_version
= udev
->descriptor
.bcdDevice
;
279 usb_set_intfdata(intf
, cardp
);
281 r
= lbs_get_firmware_async(priv
, &udev
->dev
, cardp
->model
,
282 fw_table
, if_usb_prog_firmware
);
289 lbs_remove_card(priv
);
291 if_usb_reset_device(cardp
);
300 * if_usb_disconnect - free resource and cleanup
301 * @intf: USB interface structure
304 static void if_usb_disconnect(struct usb_interface
*intf
)
306 struct if_usb_card
*cardp
= usb_get_intfdata(intf
);
307 struct lbs_private
*priv
= cardp
->priv
;
309 cardp
->surprise_removed
= 1;
313 lbs_remove_card(priv
);
316 /* Unlink and free urb */
319 usb_set_intfdata(intf
, NULL
);
320 usb_put_dev(interface_to_usbdev(intf
));
324 * if_usb_send_fw_pkt - download FW
325 * @cardp: pointer to &struct if_usb_card
328 static int if_usb_send_fw_pkt(struct if_usb_card
*cardp
)
330 struct fwdata
*fwdata
= cardp
->ep_out_buf
;
331 const uint8_t *firmware
= cardp
->fw
->data
;
333 /* If we got a CRC failure on the last block, back
335 if (!cardp
->CRC_OK
) {
336 cardp
->totalbytes
= cardp
->fwlastblksent
;
340 lbs_deb_usb2(&cardp
->udev
->dev
, "totalbytes = %d\n",
343 /* struct fwdata (which we sent to the card) has an
344 extra __le32 field in between the header and the data,
345 which is not in the struct fwheader in the actual
346 firmware binary. Insert the seqnum in the middle... */
347 memcpy(&fwdata
->hdr
, &firmware
[cardp
->totalbytes
],
348 sizeof(struct fwheader
));
350 cardp
->fwlastblksent
= cardp
->totalbytes
;
351 cardp
->totalbytes
+= sizeof(struct fwheader
);
353 memcpy(fwdata
->data
, &firmware
[cardp
->totalbytes
],
354 le32_to_cpu(fwdata
->hdr
.datalength
));
356 lbs_deb_usb2(&cardp
->udev
->dev
, "Data length = %d\n",
357 le32_to_cpu(fwdata
->hdr
.datalength
));
359 fwdata
->seqnum
= cpu_to_le32(++cardp
->fwseqnum
);
360 cardp
->totalbytes
+= le32_to_cpu(fwdata
->hdr
.datalength
);
362 usb_tx_block(cardp
, cardp
->ep_out_buf
, sizeof(struct fwdata
) +
363 le32_to_cpu(fwdata
->hdr
.datalength
));
365 if (fwdata
->hdr
.dnldcmd
== cpu_to_le32(FW_HAS_DATA_TO_RECV
)) {
366 lbs_deb_usb2(&cardp
->udev
->dev
, "There are data to follow\n");
367 lbs_deb_usb2(&cardp
->udev
->dev
, "seqnum = %d totalbytes = %d\n",
368 cardp
->fwseqnum
, cardp
->totalbytes
);
369 } else if (fwdata
->hdr
.dnldcmd
== cpu_to_le32(FW_HAS_LAST_BLOCK
)) {
370 lbs_deb_usb2(&cardp
->udev
->dev
, "Host has finished FW downloading\n");
371 lbs_deb_usb2(&cardp
->udev
->dev
, "Downloading FW JUMP BLOCK\n");
373 cardp
->fwfinalblk
= 1;
376 lbs_deb_usb2(&cardp
->udev
->dev
, "Firmware download done; size %d\n",
382 static int if_usb_reset_device(struct if_usb_card
*cardp
)
384 struct cmd_header
*cmd
= cardp
->ep_out_buf
+ 4;
387 *(__le32
*)cardp
->ep_out_buf
= cpu_to_le32(CMD_TYPE_REQUEST
);
389 cmd
->command
= cpu_to_le16(CMD_802_11_RESET
);
390 cmd
->size
= cpu_to_le16(sizeof(cmd
));
391 cmd
->result
= cpu_to_le16(0);
392 cmd
->seqnum
= cpu_to_le16(0x5a5a);
393 usb_tx_block(cardp
, cardp
->ep_out_buf
, 4 + sizeof(struct cmd_header
));
396 ret
= usb_reset_device(cardp
->udev
);
400 if (ret
&& machine_is_olpc())
401 if_usb_reset_olpc_card(NULL
);
408 * usb_tx_block - transfer the data to the device
409 * @cardp: pointer to &struct if_usb_card
410 * @payload: pointer to payload data
412 * returns: 0 for success or negative error code
414 static int usb_tx_block(struct if_usb_card
*cardp
, uint8_t *payload
, uint16_t nb
)
418 /* check if device is removed */
419 if (cardp
->surprise_removed
) {
420 lbs_deb_usbd(&cardp
->udev
->dev
, "Device removed\n");
425 usb_fill_bulk_urb(cardp
->tx_urb
, cardp
->udev
,
426 usb_sndbulkpipe(cardp
->udev
,
428 payload
, nb
, if_usb_write_bulk_callback
, cardp
);
430 cardp
->tx_urb
->transfer_flags
|= URB_ZERO_PACKET
;
432 if ((ret
= usb_submit_urb(cardp
->tx_urb
, GFP_ATOMIC
))) {
433 lbs_deb_usbd(&cardp
->udev
->dev
, "usb_submit_urb failed: %d\n", ret
);
435 lbs_deb_usb2(&cardp
->udev
->dev
, "usb_submit_urb success\n");
443 static int __if_usb_submit_rx_urb(struct if_usb_card
*cardp
,
444 void (*callbackfn
)(struct urb
*urb
))
449 if (!(skb
= dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE
))) {
450 pr_err("No free skb\n");
456 /* Fill the receive configuration URB and initialise the Rx call back */
457 usb_fill_bulk_urb(cardp
->rx_urb
, cardp
->udev
,
458 usb_rcvbulkpipe(cardp
->udev
, cardp
->ep_in
),
459 skb
->data
+ IPFIELD_ALIGN_OFFSET
,
460 MRVDRV_ETH_RX_PACKET_BUFFER_SIZE
, callbackfn
,
463 lbs_deb_usb2(&cardp
->udev
->dev
, "Pointer for rx_urb %p\n", cardp
->rx_urb
);
464 if ((ret
= usb_submit_urb(cardp
->rx_urb
, GFP_ATOMIC
))) {
465 lbs_deb_usbd(&cardp
->udev
->dev
, "Submit Rx URB failed: %d\n", ret
);
467 cardp
->rx_skb
= NULL
;
470 lbs_deb_usb2(&cardp
->udev
->dev
, "Submit Rx URB success\n");
478 static int if_usb_submit_rx_urb_fwload(struct if_usb_card
*cardp
)
480 return __if_usb_submit_rx_urb(cardp
, &if_usb_receive_fwload
);
483 static int if_usb_submit_rx_urb(struct if_usb_card
*cardp
)
485 return __if_usb_submit_rx_urb(cardp
, &if_usb_receive
);
488 static void if_usb_receive_fwload(struct urb
*urb
)
490 struct if_usb_card
*cardp
= urb
->context
;
491 struct sk_buff
*skb
= cardp
->rx_skb
;
492 struct fwsyncheader
*syncfwheader
;
493 struct bootcmdresp bootcmdresp
;
496 lbs_deb_usbd(&cardp
->udev
->dev
,
497 "URB status is failed during fw load\n");
502 if (cardp
->fwdnldover
) {
503 __le32
*tmp
= (__le32
*)(skb
->data
+ IPFIELD_ALIGN_OFFSET
);
505 if (tmp
[0] == cpu_to_le32(CMD_TYPE_INDICATION
) &&
506 tmp
[1] == cpu_to_le32(MACREG_INT_CODE_FIRMWARE_READY
)) {
507 pr_info("Firmware ready event received\n");
508 wake_up(&cardp
->fw_wq
);
510 lbs_deb_usb("Waiting for confirmation; got %x %x\n",
511 le32_to_cpu(tmp
[0]), le32_to_cpu(tmp
[1]));
512 if_usb_submit_rx_urb_fwload(cardp
);
517 if (cardp
->bootcmdresp
<= 0) {
518 memcpy (&bootcmdresp
, skb
->data
+ IPFIELD_ALIGN_OFFSET
,
519 sizeof(bootcmdresp
));
521 if (le16_to_cpu(cardp
->udev
->descriptor
.bcdDevice
) < 0x3106) {
523 if_usb_submit_rx_urb_fwload(cardp
);
524 cardp
->bootcmdresp
= BOOT_CMD_RESP_OK
;
525 lbs_deb_usbd(&cardp
->udev
->dev
,
526 "Received valid boot command response\n");
529 if (bootcmdresp
.magic
!= cpu_to_le32(BOOT_CMD_MAGIC_NUMBER
)) {
530 if (bootcmdresp
.magic
== cpu_to_le32(CMD_TYPE_REQUEST
) ||
531 bootcmdresp
.magic
== cpu_to_le32(CMD_TYPE_DATA
) ||
532 bootcmdresp
.magic
== cpu_to_le32(CMD_TYPE_INDICATION
)) {
533 if (!cardp
->bootcmdresp
)
534 pr_info("Firmware already seems alive; resetting\n");
535 cardp
->bootcmdresp
= -1;
537 pr_info("boot cmd response wrong magic number (0x%x)\n",
538 le32_to_cpu(bootcmdresp
.magic
));
540 } else if ((bootcmdresp
.cmd
!= BOOT_CMD_FW_BY_USB
) &&
541 (bootcmdresp
.cmd
!= BOOT_CMD_UPDATE_FW
) &&
542 (bootcmdresp
.cmd
!= BOOT_CMD_UPDATE_BOOT2
)) {
543 pr_info("boot cmd response cmd_tag error (%d)\n",
545 } else if (bootcmdresp
.result
!= BOOT_CMD_RESP_OK
) {
546 pr_info("boot cmd response result error (%d)\n",
549 cardp
->bootcmdresp
= 1;
550 lbs_deb_usbd(&cardp
->udev
->dev
,
551 "Received valid boot command response\n");
554 if_usb_submit_rx_urb_fwload(cardp
);
558 syncfwheader
= kmemdup(skb
->data
+ IPFIELD_ALIGN_OFFSET
,
559 sizeof(struct fwsyncheader
), GFP_ATOMIC
);
561 lbs_deb_usbd(&cardp
->udev
->dev
, "Failure to allocate syncfwheader\n");
566 if (!syncfwheader
->cmd
) {
567 lbs_deb_usb2(&cardp
->udev
->dev
, "FW received Blk with correct CRC\n");
568 lbs_deb_usb2(&cardp
->udev
->dev
, "FW received Blk seqnum = %d\n",
569 le32_to_cpu(syncfwheader
->seqnum
));
572 lbs_deb_usbd(&cardp
->udev
->dev
, "FW received Blk with CRC error\n");
578 /* Give device 5s to either write firmware to its RAM or eeprom */
579 mod_timer(&cardp
->fw_timeout
, jiffies
+ (HZ
*5));
581 if (cardp
->fwfinalblk
) {
582 cardp
->fwdnldover
= 1;
586 if_usb_send_fw_pkt(cardp
);
589 if_usb_submit_rx_urb_fwload(cardp
);
594 #define MRVDRV_MIN_PKT_LEN 30
596 static inline void process_cmdtypedata(int recvlength
, struct sk_buff
*skb
,
597 struct if_usb_card
*cardp
,
598 struct lbs_private
*priv
)
600 if (recvlength
> MRVDRV_ETH_RX_PACKET_BUFFER_SIZE
+ MESSAGE_HEADER_LEN
601 || recvlength
< MRVDRV_MIN_PKT_LEN
) {
602 lbs_deb_usbd(&cardp
->udev
->dev
, "Packet length is Invalid\n");
607 skb_reserve(skb
, IPFIELD_ALIGN_OFFSET
);
608 skb_put(skb
, recvlength
);
609 skb_pull(skb
, MESSAGE_HEADER_LEN
);
611 lbs_process_rxed_packet(priv
, skb
);
614 static inline void process_cmdrequest(int recvlength
, uint8_t *recvbuff
,
616 struct if_usb_card
*cardp
,
617 struct lbs_private
*priv
)
622 if (recvlength
> LBS_CMD_BUFFER_SIZE
) {
623 lbs_deb_usbd(&cardp
->udev
->dev
,
624 "The receive buffer is too large\n");
629 spin_lock_irqsave(&priv
->driver_lock
, flags
);
631 i
= (priv
->resp_idx
== 0) ? 1 : 0;
632 BUG_ON(priv
->resp_len
[i
]);
633 priv
->resp_len
[i
] = (recvlength
- MESSAGE_HEADER_LEN
);
634 memcpy(priv
->resp_buf
[i
], recvbuff
+ MESSAGE_HEADER_LEN
,
637 lbs_notify_command_response(priv
, i
);
639 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
641 lbs_deb_usbd(&cardp
->udev
->dev
,
642 "Wake up main thread to handle cmd response\n");
646 * if_usb_receive - read the packet into the upload buffer,
647 * wake up the main thread and initialise the Rx callack
649 * @urb: pointer to &struct urb
652 static void if_usb_receive(struct urb
*urb
)
654 struct if_usb_card
*cardp
= urb
->context
;
655 struct sk_buff
*skb
= cardp
->rx_skb
;
656 struct lbs_private
*priv
= cardp
->priv
;
657 int recvlength
= urb
->actual_length
;
658 uint8_t *recvbuff
= NULL
;
659 uint32_t recvtype
= 0;
660 __le32
*pkt
= (__le32
*)(skb
->data
+ IPFIELD_ALIGN_OFFSET
);
665 lbs_deb_usbd(&cardp
->udev
->dev
, "RX URB failed: %d\n",
671 recvbuff
= skb
->data
+ IPFIELD_ALIGN_OFFSET
;
672 recvtype
= le32_to_cpu(pkt
[0]);
673 lbs_deb_usbd(&cardp
->udev
->dev
,
674 "Recv length = 0x%x, Recv type = 0x%X\n",
675 recvlength
, recvtype
);
676 } else if (urb
->status
) {
683 process_cmdtypedata(recvlength
, skb
, cardp
, priv
);
686 case CMD_TYPE_REQUEST
:
687 process_cmdrequest(recvlength
, recvbuff
, skb
, cardp
, priv
);
690 case CMD_TYPE_INDICATION
:
692 event
= le32_to_cpu(pkt
[1]);
693 lbs_deb_usbd(&cardp
->udev
->dev
, "**EVENT** 0x%X\n", event
);
696 /* Icky undocumented magic special case */
697 if (event
& 0xffff0000) {
698 u32 trycount
= (event
& 0xffff0000) >> 16;
700 lbs_send_tx_feedback(priv
, trycount
);
702 lbs_queue_event(priv
, event
& 0xFF);
706 lbs_deb_usbd(&cardp
->udev
->dev
, "Unknown command type 0x%X\n",
713 if_usb_submit_rx_urb(cardp
);
717 * if_usb_host_to_card - downloads data to FW
718 * @priv: pointer to &struct lbs_private structure
719 * @type: type of data
720 * @payload: pointer to data buffer
721 * @nb: number of bytes
722 * returns: 0 for success or negative error code
724 static int if_usb_host_to_card(struct lbs_private
*priv
, uint8_t type
,
725 uint8_t *payload
, uint16_t nb
)
727 struct if_usb_card
*cardp
= priv
->card
;
729 lbs_deb_usbd(&cardp
->udev
->dev
,"*** type = %u\n", type
);
730 lbs_deb_usbd(&cardp
->udev
->dev
,"size after = %d\n", nb
);
732 if (type
== MVMS_CMD
) {
733 *(__le32
*)cardp
->ep_out_buf
= cpu_to_le32(CMD_TYPE_REQUEST
);
734 priv
->dnld_sent
= DNLD_CMD_SENT
;
736 *(__le32
*)cardp
->ep_out_buf
= cpu_to_le32(CMD_TYPE_DATA
);
737 priv
->dnld_sent
= DNLD_DATA_SENT
;
740 memcpy((cardp
->ep_out_buf
+ MESSAGE_HEADER_LEN
), payload
, nb
);
742 return usb_tx_block(cardp
, cardp
->ep_out_buf
, nb
+ MESSAGE_HEADER_LEN
);
746 * if_usb_issue_boot_command - issues Boot command to the Boot2 code
747 * @cardp: pointer to &if_usb_card
748 * @ivalue: 1:Boot from FW by USB-Download
749 * 2:Boot from FW in EEPROM
750 * returns: 0 for success or negative error code
752 static int if_usb_issue_boot_command(struct if_usb_card
*cardp
, int ivalue
)
754 struct bootcmd
*bootcmd
= cardp
->ep_out_buf
;
756 /* Prepare command */
757 bootcmd
->magic
= cpu_to_le32(BOOT_CMD_MAGIC_NUMBER
);
758 bootcmd
->cmd
= ivalue
;
759 memset(bootcmd
->pad
, 0, sizeof(bootcmd
->pad
));
762 usb_tx_block(cardp
, cardp
->ep_out_buf
, sizeof(*bootcmd
));
769 * check_fwfile_format - check the validity of Boot2/FW image
771 * @data: pointer to image
772 * @totlen: image length
773 * returns: 0 (good) or 1 (failure)
775 static int check_fwfile_format(const uint8_t *data
, uint32_t totlen
)
777 uint32_t bincmd
, exit
;
778 uint32_t blksize
, offset
, len
;
785 struct fwheader
*fwh
= (void *)data
;
787 bincmd
= le32_to_cpu(fwh
->dnldcmd
);
788 blksize
= le32_to_cpu(fwh
->datalength
);
790 case FW_HAS_DATA_TO_RECV
:
791 offset
= sizeof(struct fwheader
) + blksize
;
797 case FW_HAS_LAST_BLOCK
:
808 pr_err("firmware file format check FAIL\n");
810 lbs_deb_fw("firmware file format check PASS\n");
815 static void if_usb_prog_firmware(struct lbs_private
*priv
, int ret
,
816 const struct firmware
*fw
,
817 const struct firmware
*unused
)
819 struct if_usb_card
*cardp
= priv
->card
;
821 static int reset_count
= 10;
824 pr_err("failed to find firmware (%d)\n", ret
);
829 if (check_fwfile_format(cardp
->fw
->data
, cardp
->fw
->size
)) {
834 /* Cancel any pending usb business */
835 usb_kill_urb(cardp
->rx_urb
);
836 usb_kill_urb(cardp
->tx_urb
);
838 cardp
->fwlastblksent
= 0;
839 cardp
->fwdnldover
= 0;
840 cardp
->totalbytes
= 0;
841 cardp
->fwfinalblk
= 0;
842 cardp
->bootcmdresp
= 0;
845 if (if_usb_submit_rx_urb_fwload(cardp
) < 0) {
846 lbs_deb_usbd(&cardp
->udev
->dev
, "URB submission is failed\n");
851 cardp
->bootcmdresp
= 0;
855 if_usb_issue_boot_command(cardp
, BOOT_CMD_FW_BY_USB
);
856 /* wait for command response */
859 msleep_interruptible(100);
860 } while (cardp
->bootcmdresp
== 0 && j
< 10);
861 } while (cardp
->bootcmdresp
== 0 && i
< 5);
863 if (cardp
->bootcmdresp
== BOOT_CMD_RESP_NOT_SUPPORTED
) {
864 /* Return to normal operation */
866 usb_kill_urb(cardp
->rx_urb
);
867 usb_kill_urb(cardp
->tx_urb
);
868 if (if_usb_submit_rx_urb(cardp
) < 0)
871 } else if (cardp
->bootcmdresp
<= 0) {
872 if (--reset_count
>= 0) {
873 if_usb_reset_device(cardp
);
882 cardp
->totalbytes
= 0;
883 cardp
->fwlastblksent
= 0;
885 cardp
->fwdnldover
= 0;
886 cardp
->fwseqnum
= -1;
887 cardp
->totalbytes
= 0;
888 cardp
->fwfinalblk
= 0;
890 /* Send the first firmware packet... */
891 if_usb_send_fw_pkt(cardp
);
893 /* ... and wait for the process to complete */
894 wait_event_interruptible(cardp
->fw_wq
, cardp
->surprise_removed
|| cardp
->fwdnldover
);
896 del_timer_sync(&cardp
->fw_timeout
);
897 usb_kill_urb(cardp
->rx_urb
);
899 if (!cardp
->fwdnldover
) {
900 pr_info("failed to load fw, resetting device!\n");
901 if (--reset_count
>= 0) {
902 if_usb_reset_device(cardp
);
906 pr_info("FW download failure, time = %d ms\n", i
* 100);
911 cardp
->priv
->fw_ready
= 1;
912 if_usb_submit_rx_urb(cardp
);
914 if (lbs_start_card(priv
))
917 if_usb_setup_firmware(priv
);
920 * EHS_REMOVE_WAKEUP is not supported on all versions of the firmware.
922 priv
->wol_criteria
= EHS_REMOVE_WAKEUP
;
923 if (lbs_host_sleep_cfg(priv
, priv
->wol_criteria
, NULL
))
924 priv
->ehs_remove_supported
= false;
932 static int if_usb_suspend(struct usb_interface
*intf
, pm_message_t message
)
934 struct if_usb_card
*cardp
= usb_get_intfdata(intf
);
935 struct lbs_private
*priv
= cardp
->priv
;
938 if (priv
->psstate
!= PS_STATE_FULL_POWER
) {
944 if (machine_is_olpc()) {
945 if (priv
->wol_criteria
== EHS_REMOVE_WAKEUP
)
946 olpc_ec_wakeup_clear(EC_SCI_SRC_WLAN
);
948 olpc_ec_wakeup_set(EC_SCI_SRC_WLAN
);
952 ret
= lbs_suspend(priv
);
956 /* Unlink tx & rx urb */
957 usb_kill_urb(cardp
->tx_urb
);
958 usb_kill_urb(cardp
->rx_urb
);
964 static int if_usb_resume(struct usb_interface
*intf
)
966 struct if_usb_card
*cardp
= usb_get_intfdata(intf
);
967 struct lbs_private
*priv
= cardp
->priv
;
969 if_usb_submit_rx_urb(cardp
);
976 #define if_usb_suspend NULL
977 #define if_usb_resume NULL
980 static struct usb_driver if_usb_driver
= {
982 .probe
= if_usb_probe
,
983 .disconnect
= if_usb_disconnect
,
984 .id_table
= if_usb_table
,
985 .suspend
= if_usb_suspend
,
986 .resume
= if_usb_resume
,
987 .reset_resume
= if_usb_resume
,
988 .disable_hub_initiated_lpm
= 1,
991 module_usb_driver(if_usb_driver
);
993 MODULE_DESCRIPTION("8388 USB WLAN Driver");
994 MODULE_AUTHOR("Marvell International Ltd. and Red Hat, Inc.");
995 MODULE_LICENSE("GPL");