jumpshot.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:25k
- /* Driver for Lexar "Jumpshot" Compact Flash reader
- *
- * jumpshot driver v0.1:
- *
- * First release
- *
- * Current development and maintenance by:
- * (c) 2000 Jimmie Mayfield (mayfield+usb@sackheads.org)
- * many thanks to Robert Baruch for the SanDisk SmartMedia reader driver
- * which I used as a template for this driver.
- * Some bugfixes and scatter-gather code by Gregory P. Smith
- * (greg-usb@electricrain.com)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- /*
- * This driver attempts to support the Lexar Jumpshot USB CompactFlash
- * reader. Like many other USB CompactFlash readers, the Jumpshot contains
- * a USB-to-ATA chip.
- *
- * This driver supports reading and writing. If you're truly paranoid,
- * however, you can force the driver into a write-protected state by setting
- * the WP enable bits in jumpshot_handle_mode_sense. Basically this means
- * setting mode_param_header[3] = 0x80.
- */
- #include "transport.h"
- #include "protocol.h"
- #include "usb.h"
- #include "debug.h"
- #include "jumpshot.h"
- #include <linux/sched.h>
- #include <linux/errno.h>
- #include <linux/slab.h>
- extern int usb_stor_control_msg(struct us_data *us, unsigned int pipe,
- u8 request, u8 requesttype, u16 value,
- u16 index, void *data, u16 size);
- extern int usb_stor_bulk_msg(struct us_data *us, void *data, int pipe,
- unsigned int len, unsigned int *act_len);
- #if 0
- static void jumpshot_dump_data(unsigned char *data, int len)
- {
- unsigned char buf[80];
- int sofar = 0;
- if (!data)
- return;
- memset(buf, 0, sizeof(buf));
- for (sofar = 0; sofar < len; sofar++) {
- sprintf(buf + strlen(buf), "%02x ",
- ((unsigned int) data[sofar]) & 0xFF);
- if (sofar % 16 == 15) {
- US_DEBUGP("jumpshot: %sn", buf);
- memset(buf, 0, sizeof(buf));
- }
- }
- if (strlen(buf) != 0)
- US_DEBUGP("jumpshot: %sn", buf);
- }
- #endif
- /*
- * Send a control message and wait for the response.
- *
- * us - the pointer to the us_data structure for the device to use
- *
- * request - the URB Setup Packet's first 6 bytes. The first byte always
- * corresponds to the request type, and the second byte always corresponds
- * to the request. The other 4 bytes do not correspond to value and index,
- * since they are used in a custom way by the SCM protocol.
- *
- * xfer_data - a buffer from which to get, or to which to store, any data
- * that gets send or received, respectively, with the URB. Even though
- * it looks like we allocate a buffer in this code for the data, xfer_data
- * must contain enough allocated space.
- *
- * xfer_len - the number of bytes to send or receive with the URB.
- *
- * This routine snarfed from the SanDisk SDDR-09 driver
- *
- */
- static int jumpshot_send_control(struct us_data *us,
- int pipe,
- unsigned char request,
- unsigned char requesttype,
- unsigned short value,
- unsigned short index,
- unsigned char *xfer_data,
- unsigned int xfer_len)
- {
- int result;
- // Send the URB to the device and wait for a response.
- /* Why are request and request type reversed in this call? */
- result = usb_stor_control_msg(us, pipe,
- request, requesttype,
- value, index, xfer_data, xfer_len);
- // Check the return code for the command.
- if (result < 0) {
- /* if the command was aborted, indicate that */
- if (result == -ENOENT)
- return USB_STOR_TRANSPORT_ABORTED;
- /* a stall is a fatal condition from the device */
- if (result == -EPIPE) {
- US_DEBUGP("jumpshot_send_control: -- Stall on control pipe. Clearingn");
- result = usb_clear_halt(us->pusb_dev, pipe);
- US_DEBUGP("jumpshot_send_control: -- usb_clear_halt() returns %dn", result);
- return USB_STOR_TRANSPORT_FAILED;
- }
- /* Uh oh... serious problem here */
- return USB_STOR_TRANSPORT_ERROR;
- }
- return USB_STOR_TRANSPORT_GOOD;
- }
- static int jumpshot_raw_bulk(int direction,
- struct us_data *us,
- unsigned char *data,
- unsigned int len)
- {
- int result;
- int act_len;
- int pipe;
- if (direction == SCSI_DATA_READ)
- pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
- else
- pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
- result = usb_stor_bulk_msg(us, data, pipe, len, &act_len);
- // if we stall, we need to clear it before we go on
- if (result == -EPIPE) {
- US_DEBUGP("jumpshot_raw_bulk: EPIPE. clearing endpoint halt for"
- " pipe 0x%x, stalled at %d bytesn", pipe, act_len);
- usb_clear_halt(us->pusb_dev, pipe);
- }
- if (result) {
- // NAK - that means we've retried a few times already
- if (result == -ETIMEDOUT) {
- US_DEBUGP("jumpshot_raw_bulk: device NAKedn");
- return US_BULK_TRANSFER_FAILED;
- }
- // -ENOENT -- we canceled this transfer
- if (result == -ENOENT) {
- US_DEBUGP("jumpshot_raw_bulk: transfer abortedn");
- return US_BULK_TRANSFER_ABORTED;
- }
- if (result == -EPIPE) {
- US_DEBUGP("jumpshot_raw_bulk: output pipe stalledn");
- return USB_STOR_TRANSPORT_FAILED;
- }
- // the catch-all case
- US_DEBUGP("jumpshot_raw_bulk: unknown errorn");
- return US_BULK_TRANSFER_FAILED;
- }
- if (act_len != len) {
- US_DEBUGP("jumpshot_raw_bulk: Warning. Transferred only %d bytesn", act_len);
- return US_BULK_TRANSFER_SHORT;
- }
- US_DEBUGP("jumpshot_raw_bulk: Transfered %d of %d bytesn", act_len, len);
- return US_BULK_TRANSFER_GOOD;
- }
- static inline int jumpshot_bulk_read(struct us_data *us,
- unsigned char *data,
- unsigned int len)
- {
- if (len == 0)
- return USB_STOR_TRANSPORT_GOOD;
- US_DEBUGP("jumpshot_bulk_read: len = %dn", len);
- return jumpshot_raw_bulk(SCSI_DATA_READ, us, data, len);
- }
- static inline int jumpshot_bulk_write(struct us_data *us,
- unsigned char *data,
- unsigned int len)
- {
- if (len == 0)
- return USB_STOR_TRANSPORT_GOOD;
- US_DEBUGP("jumpshot_bulk_write: len = %dn", len);
- return jumpshot_raw_bulk(SCSI_DATA_WRITE, us, data, len);
- }
- static int jumpshot_get_status(struct us_data *us)
- {
- unsigned char reply;
- int rc;
- if (!us)
- return USB_STOR_TRANSPORT_ERROR;
- // send the setup
- rc = jumpshot_send_control(us,
- usb_rcvctrlpipe(us->pusb_dev, 0),
- 0, 0xA0, 0, 7, &reply, 1);
- if (rc != USB_STOR_TRANSPORT_GOOD)
- return rc;
- if (reply != 0x50) {
- US_DEBUGP("jumpshot_get_status: 0x%2xn",
- (unsigned short) (reply));
- return USB_STOR_TRANSPORT_ERROR;
- }
- return USB_STOR_TRANSPORT_GOOD;
- }
- static int jumpshot_read_data(struct us_data *us,
- struct jumpshot_info *info,
- u32 sector,
- u32 sectors,
- unsigned char *dest,
- int use_sg)
- {
- unsigned char command[] = { 0, 0, 0, 0, 0, 0xe0, 0x20 };
- unsigned char *buffer = NULL;
- unsigned char *ptr;
- unsigned char thistime;
- struct scatterlist *sg = NULL;
- int totallen, len, result;
- int sg_idx = 0, current_sg_offset = 0;
- int transferred;
- // we're working in LBA mode. according to the ATA spec,
- // we can support up to 28-bit addressing. I don't know if Jumpshot
- // supports beyond 24-bit addressing. It's kind of hard to test
- // since it requires > 8GB CF card.
- //
- if (sector > 0x0FFFFFFF)
- return USB_STOR_TRANSPORT_ERROR;
- // If we're using scatter-gather, we have to create a new
- // buffer to read all of the data in first, since a
- // scatter-gather buffer could in theory start in the middle
- // of a page, which would be bad. A developer who wants a
- // challenge might want to write a limited-buffer
- // version of this code.
- totallen = sectors * info->ssize;
- do {
- // loop, never allocate or transfer more than 64k at once (min(128k, 255*info->ssize) is the real limit)
- len = min_t(int, totallen, 65536);
- if (use_sg) {
- sg = (struct scatterlist *) dest;
- buffer = kmalloc(len, GFP_NOIO);
- if (buffer == NULL)
- return USB_STOR_TRANSPORT_ERROR;
- ptr = buffer;
- } else {
- ptr = dest;
- }
- thistime = (len / info->ssize) & 0xff;
- command[0] = 0;
- command[1] = thistime;
- command[2] = sector & 0xFF;
- command[3] = (sector >> 8) & 0xFF;
- command[4] = (sector >> 16) & 0xFF;
- command[5] |= (sector >> 24) & 0x0F;
- // send the setup + command
- result = jumpshot_send_control(us,
- usb_sndctrlpipe(us->pusb_dev, 0),
- 0, 0x20, 0, 1, command, 7);
- if (result != USB_STOR_TRANSPORT_GOOD) {
- if (use_sg)
- kfree(buffer);
- return result;
- }
- // read the result
- result = jumpshot_bulk_read(us, ptr, len);
- if (result != USB_STOR_TRANSPORT_GOOD) {
- if (use_sg)
- kfree(buffer);
- return result;
- }
- US_DEBUGP("jumpshot_read_data: %d bytesn", len);
- //jumpshot_dump_data(ptr, len);
-
- sectors -= thistime;
- sector += thistime;
- if (use_sg) {
- transferred = 0;
- while (sg_idx < use_sg && transferred < len) {
- if (len - transferred >= sg[sg_idx].length - current_sg_offset) {
- US_DEBUGP("jumpshot_read_data: adding %d bytes to %d byte sg buffern", sg[sg_idx].length - current_sg_offset, sg[sg_idx].length);
- memcpy(sg[sg_idx].address + current_sg_offset,
- buffer + transferred,
- sg[sg_idx].length - current_sg_offset);
- transferred += sg[sg_idx].length - current_sg_offset;
- current_sg_offset = 0;
- // on to the next sg buffer
- ++sg_idx;
- } else {
- US_DEBUGP("jumpshot_read_data: adding %d bytes to %d byte sg buffern", len - transferred, sg[sg_idx].length);
- memcpy(sg[sg_idx].address + current_sg_offset,
- buffer + transferred,
- len - transferred);
- current_sg_offset += len - transferred;
- // this sg buffer is only partially full and we're out of data to copy in
- break;
- }
- }
- kfree(buffer);
- } else {
- dest += len;
- }
- totallen -= len;
- } while (totallen > 0);
- return USB_STOR_TRANSPORT_GOOD;
- }
- static int jumpshot_write_data(struct us_data *us,
- struct jumpshot_info *info,
- u32 sector,
- u32 sectors,
- unsigned char *src,
- int use_sg)
- {
- unsigned char command[7] = { 0, 0, 0, 0, 0, 0xE0, 0x30 };
- unsigned char *buffer = NULL;
- unsigned char *ptr;
- unsigned char thistime;
- struct scatterlist *sg = NULL;
- int totallen, len, result, waitcount;
- int sg_idx = 0, current_sg_offset = 0;
- int transferred;
- // we're working in LBA mode. according to the ATA spec,
- // we can support up to 28-bit addressing. I don't know if Jumpshot
- // supports beyond 24-bit addressing. It's kind of hard to test
- // since it requires > 8GB CF card.
- //
- if (sector > 0x0FFFFFFF)
- return USB_STOR_TRANSPORT_ERROR;
- // If we're using scatter-gather, we have to create a new
- // buffer to read all of the data in first, since a
- // scatter-gather buffer could in theory start in the middle
- // of a page, which would be bad. A developer who wants a
- // challenge might want to write a limited-buffer
- // version of this code.
- totallen = sectors * info->ssize;
- do {
- // loop, never allocate or transfer more than 64k at once (min(128k, 255*info->ssize) is the real limit)
- len = min_t(int, totallen, 65536);
- if (use_sg) {
- sg = (struct scatterlist *) src;
- buffer = kmalloc(len, GFP_NOIO);
- if (buffer == NULL)
- return USB_STOR_TRANSPORT_ERROR;
- ptr = buffer;
- memset(buffer, 0, len);
- // copy the data from the sg bufs into the big contiguous buf
- //
- transferred = 0;
- while (transferred < len) {
- if (len - transferred >= sg[sg_idx].length - current_sg_offset) {
- US_DEBUGP("jumpshot_write_data: getting %d bytes from %d byte sg buffern", sg[sg_idx].length - current_sg_offset, sg[sg_idx].length);
- memcpy(ptr + transferred,
- sg[sg_idx].address + current_sg_offset,
- sg[sg_idx].length - current_sg_offset);
- transferred += sg[sg_idx].length - current_sg_offset;
- current_sg_offset = 0;
- // on to the next sg buffer
- ++sg_idx;
- } else {
- US_DEBUGP("jumpshot_write_data: getting %d bytes from %d byte sg buffern", len - transferred, sg[sg_idx].length);
- memcpy(ptr + transferred,
- sg[sg_idx].address + current_sg_offset,
- len - transferred);
- current_sg_offset += len - transferred;
- // we only copied part of this sg buffer
- break;
- }
- }
- } else {
- ptr = src;
- }
- thistime = (len / info->ssize) & 0xff;
- command[0] = 0;
- command[1] = thistime;
- command[2] = sector & 0xFF;
- command[3] = (sector >> 8) & 0xFF;
- command[4] = (sector >> 16) & 0xFF;
- command[5] |= (sector >> 24) & 0x0F;
- // send the setup + command
- result = jumpshot_send_control(us,
- usb_sndctrlpipe(us->pusb_dev, 0),
- 0, 0x20, 0, 1, command, 7);
- // send the data
- result = jumpshot_bulk_write(us, ptr, len);
- if (result != USB_STOR_TRANSPORT_GOOD) {
- if (use_sg)
- kfree(buffer);
- return result;
- }
- // read the result. apparently the bulk write can complete before the
- // jumpshot drive is finished writing. so we loop here until we
- // get a good return code
- waitcount = 0;
- do {
- result = jumpshot_get_status(us);
- if (result != USB_STOR_TRANSPORT_GOOD) {
- // I have not experimented to find the smallest value.
- //
- wait_ms(50);
- }
- } while ((result != USB_STOR_TRANSPORT_GOOD) && (waitcount < 10));
- if (result != USB_STOR_TRANSPORT_GOOD)
- US_DEBUGP("jumpshot_write_data: Gah! Waitcount = 10. Bad write!?n");
-
- sectors -= thistime;
- sector += thistime;
- if (use_sg) {
- kfree(buffer);
- } else {
- src += len;
- }
- totallen -= len;
- } while (totallen > 0);
- return result;
- }
- static int jumpshot_id_device(struct us_data *us,
- struct jumpshot_info *info)
- {
- unsigned char command[2] = { 0xe0, 0xec };
- unsigned char reply[512];
- int rc;
- if (!us || !info)
- return USB_STOR_TRANSPORT_ERROR;
- // send the setup
- rc = jumpshot_send_control(us,
- usb_sndctrlpipe(us->pusb_dev, 0),
- 0, 0x20, 0, 6, command, 2);
- if (rc != USB_STOR_TRANSPORT_GOOD) {
- US_DEBUGP("jumpshot_id_device: Gah! send_control for read_capacity failedn");
- return rc;
- }
- // read the reply
- rc = jumpshot_bulk_read(us, reply, sizeof(reply));
- if (rc != USB_STOR_TRANSPORT_GOOD)
- return rc;
- info->sectors = ((u32)(reply[117]) << 24) |
- ((u32)(reply[116]) << 16) |
- ((u32)(reply[115]) << 8) |
- ((u32)(reply[114]) );
- return USB_STOR_TRANSPORT_GOOD;
- }
- static int jumpshot_handle_mode_sense(struct us_data *us,
- Scsi_Cmnd * srb,
- unsigned char *ptr,
- int sense_6)
- {
- unsigned char mode_param_header[8] = {
- 0, 0, 0, 0, 0, 0, 0, 0
- };
- unsigned char rw_err_page[12] = {
- 0x1, 0xA, 0x21, 1, 0, 0, 0, 0, 1, 0, 0, 0
- };
- unsigned char cache_page[12] = {
- 0x8, 0xA, 0x1, 0, 0, 0, 0, 0, 0, 0, 0, 0
- };
- unsigned char rbac_page[12] = {
- 0x1B, 0xA, 0, 0x81, 0, 0, 0, 0, 0, 0, 0, 0
- };
- unsigned char timer_page[8] = {
- 0x1C, 0x6, 0, 0, 0, 0
- };
- unsigned char pc, page_code;
- unsigned short total_len = 0;
- unsigned short param_len, i = 0;
- if (sense_6)
- param_len = srb->cmnd[4];
- else
- param_len = ((u32) (srb->cmnd[7]) >> 8) | ((u32) (srb->cmnd[8]));
- pc = srb->cmnd[2] >> 6;
- page_code = srb->cmnd[2] & 0x3F;
- switch (pc) {
- case 0x0:
- US_DEBUGP("jumpshot_handle_mode_sense: Current valuesn");
- break;
- case 0x1:
- US_DEBUGP("jumpshot_handle_mode_sense: Changeable valuesn");
- break;
- case 0x2:
- US_DEBUGP("jumpshot_handle_mode_sense: Default valuesn");
- break;
- case 0x3:
- US_DEBUGP("jumpshot_handle_mode_sense: Saves valuesn");
- break;
- }
- mode_param_header[3] = 0x80; // write enable
- switch (page_code) {
- case 0x0:
- // vendor-specific mode
- return USB_STOR_TRANSPORT_ERROR;
- case 0x1:
- total_len = sizeof(rw_err_page);
- mode_param_header[0] = total_len >> 8;
- mode_param_header[1] = total_len & 0xFF;
- mode_param_header[3] = 0x00; // WP enable: 0x80
- memcpy(ptr, mode_param_header, sizeof(mode_param_header));
- i += sizeof(mode_param_header);
- memcpy(ptr + i, rw_err_page, sizeof(rw_err_page));
- break;
- case 0x8:
- total_len = sizeof(cache_page);
- mode_param_header[0] = total_len >> 8;
- mode_param_header[1] = total_len & 0xFF;
- mode_param_header[3] = 0x00; // WP enable: 0x80
- memcpy(ptr, mode_param_header, sizeof(mode_param_header));
- i += sizeof(mode_param_header);
- memcpy(ptr + i, cache_page, sizeof(cache_page));
- break;
- case 0x1B:
- total_len = sizeof(rbac_page);
- mode_param_header[0] = total_len >> 8;
- mode_param_header[1] = total_len & 0xFF;
- mode_param_header[3] = 0x00; // WP enable: 0x80
- memcpy(ptr, mode_param_header, sizeof(mode_param_header));
- i += sizeof(mode_param_header);
- memcpy(ptr + i, rbac_page, sizeof(rbac_page));
- break;
- case 0x1C:
- total_len = sizeof(timer_page);
- mode_param_header[0] = total_len >> 8;
- mode_param_header[1] = total_len & 0xFF;
- mode_param_header[3] = 0x00; // WP enable: 0x80
- memcpy(ptr, mode_param_header, sizeof(mode_param_header));
- i += sizeof(mode_param_header);
- memcpy(ptr + i, timer_page, sizeof(timer_page));
- break;
- case 0x3F:
- total_len = sizeof(timer_page) + sizeof(rbac_page) +
- sizeof(cache_page) + sizeof(rw_err_page);
- mode_param_header[0] = total_len >> 8;
- mode_param_header[1] = total_len & 0xFF;
- mode_param_header[3] = 0x00; // WP enable: 0x80
- memcpy(ptr, mode_param_header, sizeof(mode_param_header));
- i += sizeof(mode_param_header);
- memcpy(ptr + i, timer_page, sizeof(timer_page));
- i += sizeof(timer_page);
- memcpy(ptr + i, rbac_page, sizeof(rbac_page));
- i += sizeof(rbac_page);
- memcpy(ptr + i, cache_page, sizeof(cache_page));
- i += sizeof(cache_page);
- memcpy(ptr + i, rw_err_page, sizeof(rw_err_page));
- break;
- }
- return USB_STOR_TRANSPORT_GOOD;
- }
- void jumpshot_info_destructor(void *extra)
- {
- // this routine is a placeholder...
- // currently, we don't allocate any extra blocks so we're okay
- }
- // Transport for the Lexar 'Jumpshot'
- //
- int jumpshot_transport(Scsi_Cmnd * srb, struct us_data *us)
- {
- struct jumpshot_info *info;
- int rc;
- unsigned long block, blocks;
- unsigned char *ptr = NULL;
- unsigned char inquiry_response[36] = {
- 0x00, 0x80, 0x00, 0x01, 0x1F, 0x00, 0x00, 0x00
- };
- if (!us->extra) {
- us->extra = kmalloc(sizeof(struct jumpshot_info), GFP_NOIO);
- if (!us->extra) {
- US_DEBUGP("jumpshot_transport: Gah! Can't allocate storage for jumpshot info struct!n");
- return USB_STOR_TRANSPORT_ERROR;
- }
- memset(us->extra, 0, sizeof(struct jumpshot_info));
- us->extra_destructor = jumpshot_info_destructor;
- }
- info = (struct jumpshot_info *) (us->extra);
- ptr = (unsigned char *) srb->request_buffer;
- if (srb->cmnd[0] == INQUIRY) {
- US_DEBUGP("jumpshot_transport: INQUIRY. Returning bogus response.n");
- memset(inquiry_response + 8, 0, 28);
- fill_inquiry_response(us, inquiry_response, 36);
- return USB_STOR_TRANSPORT_GOOD;
- }
- if (srb->cmnd[0] == READ_CAPACITY) {
- info->ssize = 0x200; // hard coded 512 byte sectors as per ATA spec
- rc = jumpshot_get_status(us);
- if (rc != USB_STOR_TRANSPORT_GOOD)
- return rc;
- rc = jumpshot_id_device(us, info);
- if (rc != USB_STOR_TRANSPORT_GOOD)
- return rc;
- US_DEBUGP("jumpshot_transport: READ_CAPACITY: %ld sectors, %ld bytes per sectorn",
- info->sectors, info->ssize);
- // build the reply
- //
- ptr[0] = (info->sectors >> 24) & 0xFF;
- ptr[1] = (info->sectors >> 16) & 0xFF;
- ptr[2] = (info->sectors >> 8) & 0xFF;
- ptr[3] = (info->sectors) & 0xFF;
- ptr[4] = (info->ssize >> 24) & 0xFF;
- ptr[5] = (info->ssize >> 16) & 0xFF;
- ptr[6] = (info->ssize >> 8) & 0xFF;
- ptr[7] = (info->ssize) & 0xFF;
- return USB_STOR_TRANSPORT_GOOD;
- }
- if (srb->cmnd[0] == MODE_SELECT_10) {
- US_DEBUGP("jumpshot_transport: Gah! MODE_SELECT_10.n");
- return USB_STOR_TRANSPORT_ERROR;
- }
- if (srb->cmnd[0] == READ_10) {
- block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) |
- ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5]));
- blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8]));
- US_DEBUGP("jumpshot_transport: READ_10: read block 0x%04lx count %ldn", block, blocks);
- return jumpshot_read_data(us, info, block, blocks, ptr, srb->use_sg);
- }
- if (srb->cmnd[0] == READ_12) {
- // I don't think we'll ever see a READ_12 but support it anyway...
- //
- block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) |
- ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5]));
- blocks = ((u32)(srb->cmnd[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) |
- ((u32)(srb->cmnd[8]) << 8) | ((u32)(srb->cmnd[9]));
- US_DEBUGP("jumpshot_transport: READ_12: read block 0x%04lx count %ldn", block, blocks);
- return jumpshot_read_data(us, info, block, blocks, ptr, srb->use_sg);
- }
- if (srb->cmnd[0] == WRITE_10) {
- block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) |
- ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5]));
- blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8]));
- US_DEBUGP("jumpshot_transport: WRITE_10: write block 0x%04lx count %ldn", block, blocks);
- return jumpshot_write_data(us, info, block, blocks, ptr, srb->use_sg);
- }
- if (srb->cmnd[0] == WRITE_12) {
- // I don't think we'll ever see a WRITE_12 but support it anyway...
- //
- block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) |
- ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5]));
- blocks = ((u32)(srb->cmnd[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) |
- ((u32)(srb->cmnd[8]) << 8) | ((u32)(srb->cmnd[9]));
- US_DEBUGP("jumpshot_transport: WRITE_12: write block 0x%04lx count %ldn", block, blocks);
- return jumpshot_write_data(us, info, block, blocks, ptr, srb->use_sg);
- }
- if (srb->cmnd[0] == TEST_UNIT_READY) {
- US_DEBUGP("jumpshot_transport: TEST_UNIT_READY.n");
- return jumpshot_get_status(us);
- }
- if (srb->cmnd[0] == REQUEST_SENSE) {
- US_DEBUGP("jumpshot_transport: REQUEST_SENSE. Returning NO SENSE for nown");
- ptr[0] = 0xF0;
- ptr[2] = info->sense_key;
- ptr[7] = 11;
- ptr[12] = info->sense_asc;
- ptr[13] = info->sense_ascq;
- return USB_STOR_TRANSPORT_GOOD;
- }
- if (srb->cmnd[0] == MODE_SENSE) {
- US_DEBUGP("jumpshot_transport: MODE_SENSE_6 detectedn");
- return jumpshot_handle_mode_sense(us, srb, ptr, TRUE);
- }
- if (srb->cmnd[0] == MODE_SENSE_10) {
- US_DEBUGP("jumpshot_transport: MODE_SENSE_10 detectedn");
- return jumpshot_handle_mode_sense(us, srb, ptr, FALSE);
- }
-
- if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
- // sure. whatever. not like we can stop the user from popping
- // the media out of the device (no locking doors, etc)
- //
- return USB_STOR_TRANSPORT_GOOD;
- }
- US_DEBUGP("jumpshot_transport: Gah! Unknown command: %d (0x%x)n", srb->cmnd[0], srb->cmnd[0]);
- return USB_STOR_TRANSPORT_ERROR;
- }