diff options
Diffstat (limited to 'drivers/usb/storage/shuttle_usbat.c')
| -rw-r--r-- | drivers/usb/storage/shuttle_usbat.c | 858 |
1 files changed, 510 insertions, 348 deletions
diff --git a/drivers/usb/storage/shuttle_usbat.c b/drivers/usb/storage/shuttle_usbat.c index f3b60288696..008d805c3d2 100644 --- a/drivers/usb/storage/shuttle_usbat.c +++ b/drivers/usb/storage/shuttle_usbat.c @@ -1,6 +1,4 @@ -/* Driver for SCM Microsystems USB-ATAPI cable - * - * $Id: shuttle_usbat.c,v 1.17 2002/04/22 03:39:43 mdharm Exp $ +/* Driver for SCM Microsystems (a.k.a. Shuttle) USB-ATAPI cable * * Current development and maintenance by: * (c) 2000, 2001 Robert Baruch (autophile@starband.net) @@ -43,8 +41,8 @@ * 675 Mass Ave, Cambridge, MA 02139, USA. */ -#include <linux/sched.h> #include <linux/errno.h> +#include <linux/module.h> #include <linux/slab.h> #include <linux/cdrom.h> @@ -55,7 +53,100 @@ #include "transport.h" #include "protocol.h" #include "debug.h" -#include "shuttle_usbat.h" + +MODULE_DESCRIPTION("Driver for SCM Microsystems (a.k.a. Shuttle) USB-ATAPI cable"); +MODULE_AUTHOR("Daniel Drake <dsd@gentoo.org>, Robert Baruch <autophile@starband.net>"); +MODULE_LICENSE("GPL"); + +/* Supported device types */ +#define USBAT_DEV_HP8200 0x01 +#define USBAT_DEV_FLASH 0x02 + +#define USBAT_EPP_PORT 0x10 +#define USBAT_EPP_REGISTER 0x30 +#define USBAT_ATA 0x40 +#define USBAT_ISA 0x50 + +/* Commands (need to be logically OR'd with an access type */ +#define USBAT_CMD_READ_REG 0x00 +#define USBAT_CMD_WRITE_REG 0x01 +#define USBAT_CMD_READ_BLOCK 0x02 +#define USBAT_CMD_WRITE_BLOCK 0x03 +#define USBAT_CMD_COND_READ_BLOCK 0x04 +#define USBAT_CMD_COND_WRITE_BLOCK 0x05 +#define USBAT_CMD_WRITE_REGS 0x07 + +/* Commands (these don't need an access type) */ +#define USBAT_CMD_EXEC_CMD 0x80 +#define USBAT_CMD_SET_FEAT 0x81 +#define USBAT_CMD_UIO 0x82 + +/* Methods of accessing UIO register */ +#define USBAT_UIO_READ 1 +#define USBAT_UIO_WRITE 0 + +/* Qualifier bits */ +#define USBAT_QUAL_FCQ 0x20 /* full compare */ +#define USBAT_QUAL_ALQ 0x10 /* auto load subcount */ + +/* USBAT Flash Media status types */ +#define USBAT_FLASH_MEDIA_NONE 0 +#define USBAT_FLASH_MEDIA_CF 1 + +/* USBAT Flash Media change types */ +#define USBAT_FLASH_MEDIA_SAME 0 +#define USBAT_FLASH_MEDIA_CHANGED 1 + +/* USBAT ATA registers */ +#define USBAT_ATA_DATA 0x10 /* read/write data (R/W) */ +#define USBAT_ATA_FEATURES 0x11 /* set features (W) */ +#define USBAT_ATA_ERROR 0x11 /* error (R) */ +#define USBAT_ATA_SECCNT 0x12 /* sector count (R/W) */ +#define USBAT_ATA_SECNUM 0x13 /* sector number (R/W) */ +#define USBAT_ATA_LBA_ME 0x14 /* cylinder low (R/W) */ +#define USBAT_ATA_LBA_HI 0x15 /* cylinder high (R/W) */ +#define USBAT_ATA_DEVICE 0x16 /* head/device selection (R/W) */ +#define USBAT_ATA_STATUS 0x17 /* device status (R) */ +#define USBAT_ATA_CMD 0x17 /* device command (W) */ +#define USBAT_ATA_ALTSTATUS 0x0E /* status (no clear IRQ) (R) */ + +/* USBAT User I/O Data registers */ +#define USBAT_UIO_EPAD 0x80 /* Enable Peripheral Control Signals */ +#define USBAT_UIO_CDT 0x40 /* Card Detect (Read Only) */ + /* CDT = ACKD & !UI1 & !UI0 */ +#define USBAT_UIO_1 0x20 /* I/O 1 */ +#define USBAT_UIO_0 0x10 /* I/O 0 */ +#define USBAT_UIO_EPP_ATA 0x08 /* 1=EPP mode, 0=ATA mode */ +#define USBAT_UIO_UI1 0x04 /* Input 1 */ +#define USBAT_UIO_UI0 0x02 /* Input 0 */ +#define USBAT_UIO_INTR_ACK 0x01 /* Interrupt (ATA/ISA)/Acknowledge (EPP) */ + +/* USBAT User I/O Enable registers */ +#define USBAT_UIO_DRVRST 0x80 /* Reset Peripheral */ +#define USBAT_UIO_ACKD 0x40 /* Enable Card Detect */ +#define USBAT_UIO_OE1 0x20 /* I/O 1 set=output/clr=input */ + /* If ACKD=1, set OE1 to 1 also. */ +#define USBAT_UIO_OE0 0x10 /* I/O 0 set=output/clr=input */ +#define USBAT_UIO_ADPRST 0x01 /* Reset SCM chip */ + +/* USBAT Features */ +#define USBAT_FEAT_ETEN 0x80 /* External trigger enable */ +#define USBAT_FEAT_U1 0x08 +#define USBAT_FEAT_U0 0x04 +#define USBAT_FEAT_ET1 0x02 +#define USBAT_FEAT_ET2 0x01 + +struct usbat_info { + int devicetype; + + /* Used for Flash readers only */ + unsigned long sectors; /* total sector count */ + unsigned long ssize; /* sector size in bytes */ + + unsigned char sense_key; + unsigned long sense_asc; /* additional sense code */ + unsigned long sense_ascq; /* additional sense code qualifier */ +}; #define short_pack(LSB,MSB) ( ((u16)(LSB)) | ( ((u16)(MSB))<<8 ) ) #define LSB_of(s) ((s)&0xFF) @@ -66,11 +157,53 @@ static int transferred = 0; static int usbat_flash_transport(struct scsi_cmnd * srb, struct us_data *us); static int usbat_hp8200e_transport(struct scsi_cmnd *srb, struct us_data *us); +static int init_usbat_cd(struct us_data *us); +static int init_usbat_flash(struct us_data *us); + + +/* + * The table of devices + */ +#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ + vendorName, productName, useProtocol, useTransport, \ + initFunction, flags) \ +{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ + .driver_info = (flags) } + +static struct usb_device_id usbat_usb_ids[] = { +# include "unusual_usbat.h" + { } /* Terminating entry */ +}; +MODULE_DEVICE_TABLE(usb, usbat_usb_ids); + +#undef UNUSUAL_DEV + +/* + * The flags table + */ +#define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \ + vendor_name, product_name, use_protocol, use_transport, \ + init_function, Flags) \ +{ \ + .vendorName = vendor_name, \ + .productName = product_name, \ + .useProtocol = use_protocol, \ + .useTransport = use_transport, \ + .initFunction = init_function, \ +} + +static struct us_unusual_dev usbat_unusual_dev_list[] = { +# include "unusual_usbat.h" + { } /* Terminating entry */ +}; + +#undef UNUSUAL_DEV + /* - * Convenience function to produce an ATAPI read/write sectors command + * Convenience function to produce an ATA read/write sectors command * Use cmd=0x20 for read, cmd=0x30 for write */ -static void usbat_pack_atapi_sector_cmd(unsigned char *buf, +static void usbat_pack_ata_sector_cmd(unsigned char *buf, unsigned char thistime, u32 sector, unsigned char cmd) { @@ -131,28 +264,30 @@ static int usbat_write(struct us_data *us, * Convenience function to perform a bulk read */ static int usbat_bulk_read(struct us_data *us, - unsigned char *data, - unsigned int len) + void* buf, + unsigned int len, + int use_sg) { if (len == 0) return USB_STOR_XFER_GOOD; - US_DEBUGP("usbat_bulk_read: len = %d\n", len); - return usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, data, len, NULL); + usb_stor_dbg(us, "len = %d\n", len); + return usb_stor_bulk_transfer_sg(us, us->recv_bulk_pipe, buf, len, use_sg, NULL); } /* * Convenience function to perform a bulk write */ static int usbat_bulk_write(struct us_data *us, - unsigned char *data, - unsigned int len) + void* buf, + unsigned int len, + int use_sg) { if (len == 0) return USB_STOR_XFER_GOOD; - US_DEBUGP("usbat_bulk_write: len = %d\n", len); - return usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, data, len, NULL); + usb_stor_dbg(us, "len = %d\n", len); + return usb_stor_bulk_transfer_sg(us, us->send_bulk_pipe, buf, len, use_sg, NULL); } /* @@ -177,7 +312,7 @@ static int usbat_get_status(struct us_data *us, unsigned char *status) int rc; rc = usbat_read(us, USBAT_ATA, USBAT_ATA_STATUS, status); - US_DEBUGP("usbat_get_status: 0x%02X\n", (unsigned short) (*status)); + usb_stor_dbg(us, "0x%02X\n", *status); return rc; } @@ -189,24 +324,23 @@ static int usbat_check_status(struct us_data *us) unsigned char *reply = us->iobuf; int rc; - if (!us) - return USB_STOR_TRANSPORT_ERROR; - rc = usbat_get_status(us, reply); if (rc != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_FAILED; - if (*reply & 0x01 && *reply != 0x51) // error/check condition (0x51 is ok) + /* error/check condition (0x51 is ok) */ + if (*reply & 0x01 && *reply != 0x51) return USB_STOR_TRANSPORT_FAILED; - if (*reply & 0x20) // device fault + /* device fault */ + if (*reply & 0x20) return USB_STOR_TRANSPORT_FAILED; return USB_STOR_TRANSPORT_GOOD; } /* - * Stores critical information in internal registers in prepartion for the execution + * Stores critical information in internal registers in preparation for the execution * of a conditional usbat_read_blocks or usbat_write_blocks call. */ static int usbat_set_shuttle_features(struct us_data *us, @@ -222,29 +356,39 @@ static int usbat_set_shuttle_features(struct us_data *us, command[0] = 0x40; command[1] = USBAT_CMD_SET_FEAT; - // The only bit relevant to ATA access is bit 6 - // which defines 8 bit data access (set) or 16 bit (unset) + /* + * The only bit relevant to ATA access is bit 6 + * which defines 8 bit data access (set) or 16 bit (unset) + */ command[2] = epp_control; - // If FCQ is set in the qualifier (defined in R/W cmd), then bits U0, U1, - // ET1 and ET2 define an external event to be checked for on event of a - // _read_blocks or _write_blocks operation. The read/write will not take - // place unless the defined trigger signal is active. + /* + * If FCQ is set in the qualifier (defined in R/W cmd), then bits U0, U1, + * ET1 and ET2 define an external event to be checked for on event of a + * _read_blocks or _write_blocks operation. The read/write will not take + * place unless the defined trigger signal is active. + */ command[3] = external_trigger; - // The resultant byte of the mask operation (see mask_byte) is compared for - // equivalence with this test pattern. If equal, the read/write will take - // place. + /* + * The resultant byte of the mask operation (see mask_byte) is compared for + * equivalence with this test pattern. If equal, the read/write will take + * place. + */ command[4] = test_pattern; - // This value is logically ANDed with the status register field specified - // in the read/write command. + /* + * This value is logically ANDed with the status register field specified + * in the read/write command. + */ command[5] = mask_byte; - // If ALQ is set in the qualifier, this field contains the address of the - // registers where the byte count should be read for transferring the data. - // If ALQ is not set, then this field contains the number of bytes to be - // transferred. + /* + * If ALQ is set in the qualifier, this field contains the address of the + * registers where the byte count should be read for transferring the data. + * If ALQ is not set, then this field contains the number of bytes to be + * transferred. + */ command[6] = subcountL; command[7] = subcountH; @@ -273,30 +417,30 @@ static int usbat_wait_not_busy(struct us_data *us, int minutes) if (result!=USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; - if (*status & 0x01) { // check condition + if (*status & 0x01) { /* check condition */ result = usbat_read(us, USBAT_ATA, 0x10, status); return USB_STOR_TRANSPORT_FAILED; } - if (*status & 0x20) // device fault + if (*status & 0x20) /* device fault */ return USB_STOR_TRANSPORT_FAILED; - if ((*status & 0x80)==0x00) { // not busy - US_DEBUGP("Waited not busy for %d steps\n", i); + if ((*status & 0x80)==0x00) { /* not busy */ + usb_stor_dbg(us, "Waited not busy for %d steps\n", i); return USB_STOR_TRANSPORT_GOOD; } if (i<500) - msleep(10); // 5 seconds + msleep(10); /* 5 seconds */ else if (i<700) - msleep(50); // 10 seconds + msleep(50); /* 10 seconds */ else if (i<1200) - msleep(100); // 50 seconds + msleep(100); /* 50 seconds */ else - msleep(1000); // X minutes + msleep(1000); /* X minutes */ } - US_DEBUGP("Waited not busy for %d minutes, timing out.\n", - minutes); + usb_stor_dbg(us, "Waited not busy for %d minutes, timing out\n", + minutes); return USB_STOR_TRANSPORT_FAILED; } @@ -304,8 +448,9 @@ static int usbat_wait_not_busy(struct us_data *us, int minutes) * Read block data from the data register */ static int usbat_read_block(struct us_data *us, - unsigned char *content, - unsigned short len) + void* buf, + unsigned short len, + int use_sg) { int result; unsigned char *command = us->iobuf; @@ -326,7 +471,7 @@ static int usbat_read_block(struct us_data *us, if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; - result = usbat_bulk_read(us, content, len); + result = usbat_bulk_read(us, buf, len, use_sg); return (result == USB_STOR_XFER_GOOD ? USB_STOR_TRANSPORT_GOOD : USB_STOR_TRANSPORT_ERROR); } @@ -336,9 +481,10 @@ static int usbat_read_block(struct us_data *us, */ static int usbat_write_block(struct us_data *us, unsigned char access, - unsigned char *content, + void* buf, unsigned short len, - int minutes) + int minutes, + int use_sg) { int result; unsigned char *command = us->iobuf; @@ -360,7 +506,7 @@ static int usbat_write_block(struct us_data *us, if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; - result = usbat_bulk_write(us, content, len); + result = usbat_bulk_write(us, buf, len, use_sg); if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; @@ -380,7 +526,7 @@ static int usbat_hp8200e_rw_block_test(struct us_data *us, unsigned char timeout, unsigned char qualifier, int direction, - unsigned char *content, + void *buf, unsigned short len, int use_sg, int minutes) @@ -412,9 +558,12 @@ static int usbat_hp8200e_rw_block_test(struct us_data *us, if (i==0) { cmdlen = 16; - // Write to multiple registers - // Not really sure the 0x07, 0x17, 0xfc, 0xe7 is necessary here, - // but that's what came out of the trace every single time. + /* + * Write to multiple registers + * Not really sure the 0x07, 0x17, 0xfc, 0xe7 is + * necessary here, but that's what came out of the + * trace every single time. + */ command[0] = 0x40; command[1] = access | USBAT_CMD_WRITE_REGS; command[2] = 0x07; @@ -426,7 +575,7 @@ static int usbat_hp8200e_rw_block_test(struct us_data *us, } else cmdlen = 8; - // Conditionally read or write blocks + /* Conditionally read or write blocks */ command[cmdlen-8] = (direction==DMA_TO_DEVICE ? 0x40 : 0xC0); command[cmdlen-7] = access | (direction==DMA_TO_DEVICE ? @@ -450,19 +599,14 @@ static int usbat_hp8200e_rw_block_test(struct us_data *us, data[1+(j<<1)] = data_out[j]; } - result = usbat_bulk_write(us, data, num_registers*2); + result = usbat_bulk_write(us, data, num_registers*2, 0); if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; } - - //US_DEBUGP("Transfer %s %d bytes, sg buffers %d\n", - // direction == DMA_TO_DEVICE ? "out" : "in", - // len, use_sg); - result = usb_stor_bulk_transfer_sg(us, - pipe, content, len, use_sg, NULL); + pipe, buf, len, use_sg, NULL); /* * If we get a stall on the bulk download, we'll retry @@ -508,13 +652,14 @@ static int usbat_hp8200e_rw_block_test(struct us_data *us, if (result!=USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; - if (*status & 0x01) // check condition + if (*status & 0x01) /* check condition */ return USB_STOR_TRANSPORT_FAILED; - if (*status & 0x20) // device fault + if (*status & 0x20) /* device fault */ return USB_STOR_TRANSPORT_FAILED; - US_DEBUGP("Redoing %s\n", - direction==DMA_TO_DEVICE ? "write" : "read"); + usb_stor_dbg(us, "Redoing %s\n", + direction == DMA_TO_DEVICE + ? "write" : "read"); } else if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; @@ -523,8 +668,8 @@ static int usbat_hp8200e_rw_block_test(struct us_data *us, } - US_DEBUGP("Bummer! %s bulk data 20 times failed.\n", - direction==DMA_TO_DEVICE ? "Writing" : "Reading"); + usb_stor_dbg(us, "Bummer! %s bulk data 20 times failed\n", + direction == DMA_TO_DEVICE ? "Writing" : "Reading"); return USB_STOR_TRANSPORT_FAILED; } @@ -547,33 +692,33 @@ static int usbat_multiple_write(struct us_data *us, BUG_ON(num_registers > US_IOBUF_SIZE/2); - // Write to multiple registers, ATA access + /* Write to multiple registers, ATA access */ command[0] = 0x40; command[1] = USBAT_ATA | USBAT_CMD_WRITE_REGS; - // No relevance + /* No relevance */ command[2] = 0; command[3] = 0; command[4] = 0; command[5] = 0; - // Number of bytes to be transferred (incl. addresses and data) + /* Number of bytes to be transferred (incl. addresses and data) */ command[6] = LSB_of(num_registers*2); command[7] = MSB_of(num_registers*2); - // The setup command + /* The setup command */ result = usbat_execute_command(us, command, 8); if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; - // Create the reg/data, reg/data sequence + /* Create the reg/data, reg/data sequence */ for (i=0; i<num_registers; i++) { data[i<<1] = registers[i]; data[1+(i<<1)] = data_out[i]; } - // Send the data - result = usbat_bulk_write(us, data, num_registers*2); + /* Send the data */ + result = usbat_bulk_write(us, data, num_registers*2, 0); if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; @@ -596,8 +741,9 @@ static int usbat_multiple_write(struct us_data *us, * other related details) are defined beforehand with _set_shuttle_features(). */ static int usbat_read_blocks(struct us_data *us, - unsigned char *buffer, - int len) + void* buffer, + int len, + int use_sg) { int result; unsigned char *command = us->iobuf; @@ -606,18 +752,18 @@ static int usbat_read_blocks(struct us_data *us, command[1] = USBAT_ATA | USBAT_CMD_COND_READ_BLOCK; command[2] = USBAT_ATA_DATA; command[3] = USBAT_ATA_STATUS; - command[4] = 0xFD; // Timeout (ms); + command[4] = 0xFD; /* Timeout (ms); */ command[5] = USBAT_QUAL_FCQ; command[6] = LSB_of(len); command[7] = MSB_of(len); - // Multiple block read setup command + /* Multiple block read setup command */ result = usbat_execute_command(us, command, 8); if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_FAILED; - // Read the blocks we just asked for - result = usbat_bulk_read(us, buffer, len); + /* Read the blocks we just asked for */ + result = usbat_bulk_read(us, buffer, len, use_sg); if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_FAILED; @@ -637,8 +783,9 @@ static int usbat_read_blocks(struct us_data *us, * other related details) are defined beforehand with _set_shuttle_features(). */ static int usbat_write_blocks(struct us_data *us, - unsigned char *buffer, - int len) + void* buffer, + int len, + int use_sg) { int result; unsigned char *command = us->iobuf; @@ -647,18 +794,18 @@ static int usbat_write_blocks(struct us_data *us, command[1] = USBAT_ATA | USBAT_CMD_COND_WRITE_BLOCK; command[2] = USBAT_ATA_DATA; command[3] = USBAT_ATA_STATUS; - command[4] = 0xFD; // Timeout (ms) + command[4] = 0xFD; /* Timeout (ms) */ command[5] = USBAT_QUAL_FCQ; command[6] = LSB_of(len); command[7] = MSB_of(len); - // Multiple block write setup command + /* Multiple block write setup command */ result = usbat_execute_command(us, command, 8); if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_FAILED; - // Write the data - result = usbat_bulk_write(us, buffer, len); + /* Write the data */ + result = usbat_bulk_write(us, buffer, len, use_sg); if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_FAILED; @@ -681,7 +828,7 @@ static int usbat_read_user_io(struct us_data *us, unsigned char *data_flags) data_flags, USBAT_UIO_READ); - US_DEBUGP("usbat_read_user_io: UIO register reads %02X\n", (unsigned short) (*data_flags)); + usb_stor_dbg(us, "UIO register reads %02X\n", *data_flags); return result; } @@ -711,16 +858,20 @@ static int usbat_device_reset(struct us_data *us) { int rc; - // Reset peripheral, enable peripheral control signals - // (bring reset signal up) + /* + * Reset peripheral, enable peripheral control signals + * (bring reset signal up) + */ rc = usbat_write_user_io(us, USBAT_UIO_DRVRST | USBAT_UIO_OE1 | USBAT_UIO_OE0, USBAT_UIO_EPAD | USBAT_UIO_1); if (rc != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; - // Enable peripheral control signals - // (bring reset signal down) + /* + * Enable peripheral control signals + * (bring reset signal down) + */ rc = usbat_write_user_io(us, USBAT_UIO_OE1 | USBAT_UIO_OE0, USBAT_UIO_EPAD | USBAT_UIO_1); @@ -737,7 +888,7 @@ static int usbat_device_enable_cdt(struct us_data *us) { int rc; - // Enable peripheral control signals and card detect + /* Enable peripheral control signals and card detect */ rc = usbat_write_user_io(us, USBAT_UIO_ACKD | USBAT_UIO_OE1 | USBAT_UIO_OE0, USBAT_UIO_EPAD | USBAT_UIO_1); @@ -750,10 +901,11 @@ static int usbat_device_enable_cdt(struct us_data *us) /* * Determine if media is present. */ -static int usbat_flash_check_media_present(unsigned char *uio) +static int usbat_flash_check_media_present(struct us_data *us, + unsigned char *uio) { if (*uio & USBAT_UIO_UI0) { - US_DEBUGP("usbat_flash_check_media_present: no media detected\n"); + usb_stor_dbg(us, "no media detected\n"); return USBAT_FLASH_MEDIA_NONE; } @@ -763,10 +915,11 @@ static int usbat_flash_check_media_present(unsigned char *uio) /* * Determine if media has changed since last operation */ -static int usbat_flash_check_media_changed(unsigned char *uio) +static int usbat_flash_check_media_changed(struct us_data *us, + unsigned char *uio) { if (*uio & USBAT_UIO_0) { - US_DEBUGP("usbat_flash_check_media_changed: media change detected\n"); + usb_stor_dbg(us, "media change detected\n"); return USBAT_FLASH_MEDIA_CHANGED; } @@ -786,8 +939,8 @@ static int usbat_flash_check_media(struct us_data *us, if (rc != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; - // Check for media existence - rc = usbat_flash_check_media_present(uio); + /* Check for media existence */ + rc = usbat_flash_check_media_present(us, uio); if (rc == USBAT_FLASH_MEDIA_NONE) { info->sense_key = 0x02; info->sense_asc = 0x3A; @@ -795,11 +948,11 @@ static int usbat_flash_check_media(struct us_data *us, return USB_STOR_TRANSPORT_FAILED; } - // Check for media change - rc = usbat_flash_check_media_changed(uio); + /* Check for media change */ + rc = usbat_flash_check_media_changed(us, uio); if (rc == USBAT_FLASH_MEDIA_CHANGED) { - // Reset and re-enable card detect + /* Reset and re-enable card detect */ rc = usbat_device_reset(us); if (rc != USB_STOR_TRANSPORT_GOOD) return rc; @@ -839,33 +992,30 @@ static int usbat_identify_device(struct us_data *us, rc = usbat_device_reset(us); if (rc != USB_STOR_TRANSPORT_GOOD) return rc; + msleep(500); /* - * By examining the device signature after a reset, we can identify - * whether the device supports the ATAPI packet interface. - * The flash-devices do not support this, whereas the HP CDRW's obviously - * do. - * - * This method is not ideal, but works because no other devices have been - * produced based on the USBAT/USBAT02. - * - * Section 9.1 of the ATAPI-4 spec states (amongst other things) that - * after a device reset, a Cylinder low of 0x14 indicates that the device - * does support packet commands. + * In attempt to distinguish between HP CDRW's and Flash readers, we now + * execute the IDENTIFY PACKET DEVICE command. On ATA devices (i.e. flash + * readers), this command should fail with error. On ATAPI devices (i.e. + * CDROM drives), it should succeed. */ - rc = usbat_read(us, USBAT_ATA, USBAT_ATA_LBA_ME, &status); - if (rc != USB_STOR_XFER_GOOD) - return USB_STOR_TRANSPORT_ERROR; - - US_DEBUGP("usbat_identify_device: Cylinder low is %02X\n", status); - - if (status == 0x14) { - // Device is HP 8200 - US_DEBUGP("usbat_identify_device: Detected HP8200 CDRW\n"); + rc = usbat_write(us, USBAT_ATA, USBAT_ATA_CMD, 0xA1); + if (rc != USB_STOR_XFER_GOOD) + return USB_STOR_TRANSPORT_ERROR; + + rc = usbat_get_status(us, &status); + if (rc != USB_STOR_XFER_GOOD) + return USB_STOR_TRANSPORT_ERROR; + + /* Check for error bit, or if the command 'fell through' */ + if (status == 0xA1 || !(status & 0x01)) { + /* Device is HP 8200 */ + usb_stor_dbg(us, "Detected HP8200 CDRW\n"); info->devicetype = USBAT_DEV_HP8200; } else { - // Device is a CompactFlash reader/writer - US_DEBUGP("usbat_identify_device: Detected Flash reader/writer\n"); + /* Device is a CompactFlash reader/writer */ + usb_stor_dbg(us, "Detected Flash reader/writer\n"); info->devicetype = USBAT_DEV_FLASH; } @@ -876,22 +1026,28 @@ static int usbat_identify_device(struct us_data *us, * Set the transport function based on the device type */ static int usbat_set_transport(struct us_data *us, - struct usbat_info *info) + struct usbat_info *info, + int devicetype) { - int rc; - if (!info->devicetype) { - rc = usbat_identify_device(us, info); - if (rc != USB_STOR_TRANSPORT_GOOD) { - US_DEBUGP("usbat_set_transport: Could not identify device\n"); - return 1; - } - } + if (!info->devicetype) + info->devicetype = devicetype; - if (usbat_get_device_type(us) == USBAT_DEV_HP8200) + if (!info->devicetype) + usbat_identify_device(us, info); + + switch (info->devicetype) { + default: + return USB_STOR_TRANSPORT_ERROR; + + case USBAT_DEV_HP8200: us->transport = usbat_hp8200e_transport; - else if (usbat_get_device_type(us) == USBAT_DEV_FLASH) + break; + + case USBAT_DEV_FLASH: us->transport = usbat_flash_transport; + break; + } return 0; } @@ -919,15 +1075,15 @@ static int usbat_flash_get_sector_count(struct us_data *us, if (!reply) return USB_STOR_TRANSPORT_ERROR; - // ATAPI command : IDENTIFY DEVICE + /* ATA command : IDENTIFY DEVICE */ rc = usbat_multiple_write(us, registers, command, 3); if (rc != USB_STOR_XFER_GOOD) { - US_DEBUGP("usbat_flash_get_sector_count: Gah! identify_device failed\n"); + usb_stor_dbg(us, "Gah! identify_device failed\n"); rc = USB_STOR_TRANSPORT_ERROR; goto leave; } - // Read device status + /* Read device status */ if (usbat_get_status(us, &status) != USB_STOR_XFER_GOOD) { rc = USB_STOR_TRANSPORT_ERROR; goto leave; @@ -935,8 +1091,8 @@ static int usbat_flash_get_sector_count(struct us_data *us, msleep(100); - // Read the device identification data - rc = usbat_read_block(us, reply, 512); + /* Read the device identification data */ + rc = usbat_read_block(us, reply, 512, 0); if (rc != USB_STOR_TRANSPORT_GOOD) goto leave; @@ -974,25 +1130,30 @@ static int usbat_flash_read_data(struct us_data *us, unsigned char thistime; unsigned int totallen, alloclen; int len, result; - unsigned int sg_idx = 0, sg_offset = 0; + unsigned int sg_offset = 0; + struct scatterlist *sg = NULL; result = usbat_flash_check_media(us, info); if (result != USB_STOR_TRANSPORT_GOOD) return result; - // 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. + /* + * 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; totallen = sectors * info->ssize; - // Since we don't read more than 64 KB at a time, we have to create - // a bounce buffer and move the data a piece at a time between the - // bounce buffer and the actual transfer buffer. + /* + * Since we don't read more than 64 KB at a time, we have to create + * a bounce buffer and move the data a piece at a time between the + * bounce buffer and the actual transfer buffer. + */ alloclen = min(totallen, 65536u); buffer = kmalloc(alloclen, GFP_NOIO); @@ -1000,29 +1161,31 @@ static int usbat_flash_read_data(struct us_data *us, return USB_STOR_TRANSPORT_ERROR; do { - // loop, never allocate or transfer more than 64k at once - // (min(128k, 255*info->ssize) is the real limit) + /* + * loop, never allocate or transfer more than 64k at once + * (min(128k, 255*info->ssize) is the real limit) + */ len = min(totallen, alloclen); thistime = (len / info->ssize) & 0xff; - // ATAPI command 0x20 (READ SECTORS) - usbat_pack_atapi_sector_cmd(command, thistime, sector, 0x20); + /* ATA command 0x20 (READ SECTORS) */ + usbat_pack_ata_sector_cmd(command, thistime, sector, 0x20); - // Write/execute ATAPI read command + /* Write/execute ATA read command */ result = usbat_multiple_write(us, registers, command, 7); if (result != USB_STOR_TRANSPORT_GOOD) goto leave; - // Read the data we just requested - result = usbat_read_blocks(us, buffer, len); + /* Read the data we just requested */ + result = usbat_read_blocks(us, buffer, len, 0); if (result != USB_STOR_TRANSPORT_GOOD) goto leave; - US_DEBUGP("usbat_flash_read_data: %d bytes\n", len); + usb_stor_dbg(us, "%d bytes\n", len); - // Store the data in the transfer buffer + /* Store the data in the transfer buffer */ usb_stor_access_xfer_buf(buffer, len, us->srb, - &sg_idx, &sg_offset, TO_XFER_BUF); + &sg, &sg_offset, TO_XFER_BUF); sector += thistime; totallen -= len; @@ -1058,25 +1221,30 @@ static int usbat_flash_write_data(struct us_data *us, unsigned char thistime; unsigned int totallen, alloclen; int len, result; - unsigned int sg_idx = 0, sg_offset = 0; + unsigned int sg_offset = 0; + struct scatterlist *sg = NULL; result = usbat_flash_check_media(us, info); if (result != USB_STOR_TRANSPORT_GOOD) return result; - // 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. + /* + * we're working in LBA mode. according to the ATA spec, + * we can support up to 28-bit addressing. I don't know if the device + * supports beyond 24-bit addressing. It's kind of hard to test + * since it requires > 8GB media. + */ if (sector > 0x0FFFFFFF) return USB_STOR_TRANSPORT_ERROR; totallen = sectors * info->ssize; - // Since we don't write more than 64 KB at a time, we have to create - // a bounce buffer and move the data a piece at a time between the - // bounce buffer and the actual transfer buffer. + /* + * Since we don't write more than 64 KB at a time, we have to create + * a bounce buffer and move the data a piece at a time between the + * bounce buffer and the actual transfer buffer. + */ alloclen = min(totallen, 65536u); buffer = kmalloc(alloclen, GFP_NOIO); @@ -1084,25 +1252,27 @@ static int usbat_flash_write_data(struct us_data *us, return USB_STOR_TRANSPORT_ERROR; do { - // loop, never allocate or transfer more than 64k at once - // (min(128k, 255*info->ssize) is the real limit) + /* + * loop, never allocate or transfer more than 64k at once + * (min(128k, 255*info->ssize) is the real limit) + */ len = min(totallen, alloclen); thistime = (len / info->ssize) & 0xff; - // Get the data from the transfer buffer + /* Get the data from the transfer buffer */ usb_stor_access_xfer_buf(buffer, len, us->srb, - &sg_idx, &sg_offset, FROM_XFER_BUF); + &sg, &sg_offset, FROM_XFER_BUF); - // ATAPI command 0x30 (WRITE SECTORS) - usbat_pack_atapi_sector_cmd(command, thistime, sector, 0x30); + /* ATA command 0x30 (WRITE SECTORS) */ + usbat_pack_ata_sector_cmd(command, thistime, sector, 0x30); - // Write/execute ATAPI write command + /* Write/execute ATA write command */ result = usbat_multiple_write(us, registers, command, 7); if (result != USB_STOR_TRANSPORT_GOOD) goto leave; - // Write the data - result = usbat_write_blocks(us, buffer, len); + /* Write the data */ + result = usbat_write_blocks(us, buffer, len, 0); if (result != USB_STOR_TRANSPORT_GOOD) goto leave; @@ -1131,21 +1301,20 @@ static int usbat_hp8200e_handle_read10(struct us_data *us, unsigned char *buffer; unsigned int len; unsigned int sector; - unsigned int sg_segment = 0; unsigned int sg_offset = 0; + struct scatterlist *sg = NULL; - US_DEBUGP("handle_read10: transfersize %d\n", - srb->transfersize); + usb_stor_dbg(us, "transfersize %d\n", srb->transfersize); - if (srb->request_bufflen < 0x10000) { + if (scsi_bufflen(srb) < 0x10000) { result = usbat_hp8200e_rw_block_test(us, USBAT_ATA, registers, data, 19, USBAT_ATA_DATA, USBAT_ATA_STATUS, 0xFD, (USBAT_QUAL_FCQ | USBAT_QUAL_ALQ), DMA_FROM_DEVICE, - srb->request_buffer, - srb->request_bufflen, srb->use_sg, 1); + scsi_sglist(srb), + scsi_bufflen(srb), scsi_sg_count(srb), 1); return result; } @@ -1162,52 +1331,51 @@ static int usbat_hp8200e_handle_read10(struct us_data *us, len = short_pack(data[7+9], data[7+8]); len <<= 16; len |= data[7+7]; - US_DEBUGP("handle_read10: GPCMD_READ_CD: len %d\n", len); - srb->transfersize = srb->request_bufflen/len; + usb_stor_dbg(us, "GPCMD_READ_CD: len %d\n", len); + srb->transfersize = scsi_bufflen(srb)/len; } if (!srb->transfersize) { srb->transfersize = 2048; /* A guess */ - US_DEBUGP("handle_read10: transfersize 0, forcing %d\n", - srb->transfersize); + usb_stor_dbg(us, "transfersize 0, forcing %d\n", + srb->transfersize); } - // Since we only read in one block at a time, we have to create - // a bounce buffer and move the data a piece at a time between the - // bounce buffer and the actual transfer buffer. + /* + * Since we only read in one block at a time, we have to create + * a bounce buffer and move the data a piece at a time between the + * bounce buffer and the actual transfer buffer. + */ len = (65535/srb->transfersize) * srb->transfersize; - US_DEBUGP("Max read is %d bytes\n", len); - len = min(len, srb->request_bufflen); + usb_stor_dbg(us, "Max read is %d bytes\n", len); + len = min(len, scsi_bufflen(srb)); buffer = kmalloc(len, GFP_NOIO); - if (buffer == NULL) // bloody hell! + if (buffer == NULL) /* bloody hell! */ return USB_STOR_TRANSPORT_FAILED; sector = short_pack(data[7+3], data[7+2]); sector <<= 16; sector |= short_pack(data[7+5], data[7+4]); transferred = 0; - sg_segment = 0; // for keeping track of where we are in - sg_offset = 0; // the scatter/gather list + while (transferred != scsi_bufflen(srb)) { - while (transferred != srb->request_bufflen) { + if (len > scsi_bufflen(srb) - transferred) + len = scsi_bufflen(srb) - transferred; - if (len > srb->request_bufflen - transferred) - len = srb->request_bufflen - transferred; + data[3] = len&0xFF; /* (cylL) = expected length (L) */ + data[4] = (len>>8)&0xFF; /* (cylH) = expected length (H) */ - data[3] = len&0xFF; // (cylL) = expected length (L) - data[4] = (len>>8)&0xFF; // (cylH) = expected length (H) + /* Fix up the SCSI command sector and num sectors */ - // Fix up the SCSI command sector and num sectors - - data[7+2] = MSB_of(sector>>16); // SCSI command sector + data[7+2] = MSB_of(sector>>16); /* SCSI command sector */ data[7+3] = LSB_of(sector>>16); data[7+4] = MSB_of(sector&0xFFFF); data[7+5] = LSB_of(sector&0xFFFF); if (data[7+0] == GPCMD_READ_CD) data[7+6] = 0; - data[7+7] = MSB_of(len / srb->transfersize); // SCSI command - data[7+8] = LSB_of(len / srb->transfersize); // num sectors + data[7+7] = MSB_of(len / srb->transfersize); /* SCSI command */ + data[7+8] = LSB_of(len / srb->transfersize); /* num sectors */ result = usbat_hp8200e_rw_block_test(us, USBAT_ATA, registers, data, 19, @@ -1220,16 +1388,16 @@ static int usbat_hp8200e_handle_read10(struct us_data *us, if (result != USB_STOR_TRANSPORT_GOOD) break; - // Store the data in the transfer buffer + /* Store the data in the transfer buffer */ usb_stor_access_xfer_buf(buffer, len, srb, - &sg_segment, &sg_offset, TO_XFER_BUF); + &sg, &sg_offset, TO_XFER_BUF); - // Update the amount transferred and the sector number + /* Update the amount transferred and the sector number */ transferred += len; sector += len / srb->transfersize; - } // while transferred != srb->request_bufflen + } /* while transferred != scsi_bufflen(srb) */ kfree(buffer); return result; @@ -1239,16 +1407,10 @@ static int usbat_select_and_test_registers(struct us_data *us) { int selector; unsigned char *status = us->iobuf; - unsigned char max_selector = 0xB0; - if (usbat_get_device_type(us) == USBAT_DEV_FLASH) - max_selector = 0xA0; - - // try device = master, then device = slave. - for (selector = 0xA0; selector <= max_selector; selector += 0x10) { - - if (usbat_get_device_type(us) == USBAT_DEV_HP8200 && - usbat_write(us, USBAT_ATA, USBAT_ATA_DEVICE, selector) != + /* try device = master, then device = slave. */ + for (selector = 0xA0; selector <= 0xB0; selector += 0x10) { + if (usbat_write(us, USBAT_ATA, USBAT_ATA_DEVICE, selector) != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; @@ -1291,7 +1453,7 @@ static int usbat_select_and_test_registers(struct us_data *us) /* * Initialize the USBAT processor and the storage device */ -int init_usbat(struct us_data *us) +static int init_usbat(struct us_data *us, int devicetype) { int rc; struct usbat_info *info; @@ -1299,22 +1461,20 @@ int init_usbat(struct us_data *us) unsigned char subcountL = USBAT_ATA_LBA_ME; unsigned char *status = us->iobuf; - us->extra = kmalloc(sizeof(struct usbat_info), GFP_NOIO); - if (!us->extra) { - US_DEBUGP("init_usbat: Gah! Can't allocate storage for usbat info struct!\n"); + us->extra = kzalloc(sizeof(struct usbat_info), GFP_NOIO); + if (!us->extra) return 1; - } - memset(us->extra, 0, sizeof(struct usbat_info)); + info = (struct usbat_info *) (us->extra); - // Enable peripheral control signals + /* Enable peripheral control signals */ rc = usbat_write_user_io(us, USBAT_UIO_OE1 | USBAT_UIO_OE0, USBAT_UIO_EPAD | USBAT_UIO_1); if (rc != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; - US_DEBUGP("INIT 1\n"); + usb_stor_dbg(us, "INIT 1\n"); msleep(2000); @@ -1322,7 +1482,7 @@ int init_usbat(struct us_data *us) if (rc != USB_STOR_TRANSPORT_GOOD) return rc; - US_DEBUGP("INIT 2\n"); + usb_stor_dbg(us, "INIT 2\n"); rc = usbat_read_user_io(us, status); if (rc != USB_STOR_XFER_GOOD) @@ -1332,62 +1492,32 @@ int init_usbat(struct us_data *us) if (rc != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; - US_DEBUGP("INIT 3\n"); - - // At this point, we need to detect which device we are using - if (usbat_set_transport(us, info)) - return USB_STOR_TRANSPORT_ERROR; - - US_DEBUGP("INIT 4\n"); - - if (usbat_get_device_type(us) == USBAT_DEV_HP8200) { - msleep(250); - - // Write 0x80 to ISA port 0x3F - rc = usbat_write(us, USBAT_ISA, 0x3F, 0x80); - if (rc != USB_STOR_XFER_GOOD) - return USB_STOR_TRANSPORT_ERROR; - - US_DEBUGP("INIT 5\n"); - - // Read ISA port 0x27 - rc = usbat_read(us, USBAT_ISA, 0x27, status); - if (rc != USB_STOR_XFER_GOOD) - return USB_STOR_TRANSPORT_ERROR; - - US_DEBUGP("INIT 6\n"); - - rc = usbat_read_user_io(us, status); - if (rc != USB_STOR_XFER_GOOD) - return USB_STOR_TRANSPORT_ERROR; - - US_DEBUGP("INIT 7\n"); - } + usb_stor_dbg(us, "INIT 3\n"); rc = usbat_select_and_test_registers(us); if (rc != USB_STOR_TRANSPORT_GOOD) return rc; - US_DEBUGP("INIT 8\n"); + usb_stor_dbg(us, "INIT 4\n"); rc = usbat_read_user_io(us, status); if (rc != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; - US_DEBUGP("INIT 9\n"); + usb_stor_dbg(us, "INIT 5\n"); - // Enable peripheral control signals and card detect + /* Enable peripheral control signals and card detect */ rc = usbat_device_enable_cdt(us); if (rc != USB_STOR_TRANSPORT_GOOD) return rc; - US_DEBUGP("INIT 10\n"); + usb_stor_dbg(us, "INIT 6\n"); rc = usbat_read_user_io(us, status); if (rc != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; - US_DEBUGP("INIT 11\n"); + usb_stor_dbg(us, "INIT 7\n"); msleep(1400); @@ -1395,13 +1525,19 @@ int init_usbat(struct us_data *us) if (rc != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; - US_DEBUGP("INIT 12\n"); + usb_stor_dbg(us, "INIT 8\n"); rc = usbat_select_and_test_registers(us); if (rc != USB_STOR_TRANSPORT_GOOD) return rc; - US_DEBUGP("INIT 13\n"); + usb_stor_dbg(us, "INIT 9\n"); + + /* At this point, we need to detect which device we are using */ + if (usbat_set_transport(us, info, devicetype)) + return USB_STOR_TRANSPORT_ERROR; + + usb_stor_dbg(us, "INIT 10\n"); if (usbat_get_device_type(us) == USBAT_DEV_FLASH) { subcountH = 0x02; @@ -1412,7 +1548,7 @@ int init_usbat(struct us_data *us) if (rc != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; - US_DEBUGP("INIT 14\n"); + usb_stor_dbg(us, "INIT 11\n"); return USB_STOR_TRANSPORT_GOOD; } @@ -1428,9 +1564,8 @@ static int usbat_hp8200e_transport(struct scsi_cmnd *srb, struct us_data *us) unsigned char data[32]; unsigned int len; int i; - char string[64]; - len = srb->request_bufflen; + len = scsi_bufflen(srb); /* Send A0 (ATA PACKET COMMAND). Note: I guess we're never going to get any of the ATA @@ -1447,10 +1582,10 @@ static int usbat_hp8200e_transport(struct scsi_cmnd *srb, struct us_data *us) data[0] = 0x00; data[1] = 0x00; data[2] = 0x00; - data[3] = len&0xFF; // (cylL) = expected length (L) - data[4] = (len>>8)&0xFF; // (cylH) = expected length (H) - data[5] = 0xB0; // (device sel) = slave - data[6] = 0xA0; // (command) = ATA PACKET COMMAND + data[3] = len&0xFF; /* (cylL) = expected length (L) */ + data[4] = (len>>8)&0xFF; /* (cylH) = expected length (H) */ + data[5] = 0xB0; /* (device sel) = slave */ + data[6] = 0xA0; /* (command) = ATA PACKET COMMAND */ for (i=7; i<19; i++) { registers[i] = 0x10; @@ -1458,7 +1593,7 @@ static int usbat_hp8200e_transport(struct scsi_cmnd *srb, struct us_data *us) } result = usbat_get_status(us, status); - US_DEBUGP("Status = %02X\n", *status); + usb_stor_dbg(us, "Status = %02X\n", *status); if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; if (srb->cmnd[0] == TEST_UNIT_READY) @@ -1471,12 +1606,12 @@ static int usbat_hp8200e_transport(struct scsi_cmnd *srb, struct us_data *us) USBAT_ATA_DATA, USBAT_ATA_STATUS, 0xFD, (USBAT_QUAL_FCQ | USBAT_QUAL_ALQ), DMA_TO_DEVICE, - srb->request_buffer, - len, srb->use_sg, 10); + scsi_sglist(srb), + len, scsi_sg_count(srb), 10); if (result == USB_STOR_TRANSPORT_GOOD) { transferred += len; - US_DEBUGP("Wrote %08X bytes\n", transferred); + usb_stor_dbg(us, "Wrote %08X bytes\n", transferred); } return result; @@ -1489,44 +1624,44 @@ static int usbat_hp8200e_transport(struct scsi_cmnd *srb, struct us_data *us) } if (len > 0xFFFF) { - US_DEBUGP("Error: len = %08X... what do I do now?\n", - len); + usb_stor_dbg(us, "Error: len = %08X... what do I do now?\n", + len); return USB_STOR_TRANSPORT_ERROR; } - if ( (result = usbat_multiple_write(us, - registers, data, 7)) != USB_STOR_TRANSPORT_GOOD) { - return result; - } + result = usbat_multiple_write(us, registers, data, 7); - // Write the 12-byte command header. + if (result != USB_STOR_TRANSPORT_GOOD) + return result; - // If the command is BLANK then set the timer for 75 minutes. - // Otherwise set it for 10 minutes. + /* + * Write the 12-byte command header. + * + * If the command is BLANK then set the timer for 75 minutes. + * Otherwise set it for 10 minutes. + * + * NOTE: THE 8200 DOCUMENTATION STATES THAT BLANKING A CDRW + * AT SPEED 4 IS UNRELIABLE!!! + */ - // NOTE: THE 8200 DOCUMENTATION STATES THAT BLANKING A CDRW - // AT SPEED 4 IS UNRELIABLE!!! + result = usbat_write_block(us, USBAT_ATA, srb->cmnd, 12, + srb->cmnd[0] == GPCMD_BLANK ? 75 : 10, 0); - if ( (result = usbat_write_block(us, - USBAT_ATA, srb->cmnd, 12, - srb->cmnd[0]==GPCMD_BLANK ? 75 : 10)) != - USB_STOR_TRANSPORT_GOOD) { + if (result != USB_STOR_TRANSPORT_GOOD) return result; - } - // If there is response data to be read in - // then do it here. + /* If there is response data to be read in then do it here. */ if (len != 0 && (srb->sc_data_direction == DMA_FROM_DEVICE)) { - // How many bytes to read in? Check cylL register + /* How many bytes to read in? Check cylL register */ if (usbat_read(us, USBAT_ATA, USBAT_ATA_LBA_ME, status) != USB_STOR_XFER_GOOD) { return USB_STOR_TRANSPORT_ERROR; } - if (len > 0xFF) { // need to read cylH also + if (len > 0xFF) { /* need to read cylH also */ len = *status; if (usbat_read(us, USBAT_ATA, USBAT_ATA_LBA_HI, status) != USB_STOR_XFER_GOOD) { @@ -1538,23 +1673,8 @@ static int usbat_hp8200e_transport(struct scsi_cmnd *srb, struct us_data *us) len = *status; - result = usbat_read_block(us, srb->request_buffer, len); - - /* Debug-print the first 32 bytes of the transfer */ - - if (!srb->use_sg) { - string[0] = 0; - for (i=0; i<len && i<32; i++) { - sprintf(string+strlen(string), "%02X ", - ((unsigned char *)srb->request_buffer)[i]); - if ((i%16)==15) { - US_DEBUGP("%s\n", string); - string[0] = 0; - } - } - if (string[0]!=0) - US_DEBUGP("%s\n", string); - } + result = usbat_read_block(us, scsi_sglist(srb), len, + scsi_sg_count(srb)); } return result; @@ -1574,7 +1694,7 @@ static int usbat_flash_transport(struct scsi_cmnd * srb, struct us_data *us) }; if (srb->cmnd[0] == INQUIRY) { - US_DEBUGP("usbat_flash_transport: INQUIRY. Returning bogus response.\n"); + usb_stor_dbg(us, "INQUIRY - Returning bogus response\n"); memcpy(ptr, inquiry_response, sizeof(inquiry_response)); fill_inquiry_response(us, ptr, 36); return USB_STOR_TRANSPORT_GOOD; @@ -1589,13 +1709,16 @@ static int usbat_flash_transport(struct scsi_cmnd * srb, struct us_data *us) if (rc != USB_STOR_TRANSPORT_GOOD) return rc; - info->ssize = 0x200; // hard coded 512 byte sectors as per ATA spec - US_DEBUGP("usbat_flash_transport: READ_CAPACITY: %ld sectors, %ld bytes per sector\n", - info->sectors, info->ssize); + /* hard coded 512 byte sectors as per ATA spec */ + info->ssize = 0x200; + usb_stor_dbg(us, "READ_CAPACITY: %ld sectors, %ld bytes per sector\n", + info->sectors, info->ssize); - // build the reply - // note: must return the sector number of the last sector, - // *not* the total number of sectors + /* + * build the reply + * note: must return the sector number of the last sector, + * *not* the total number of sectors + */ ((__be32 *) ptr)[0] = cpu_to_be32(info->sectors - 1); ((__be32 *) ptr)[1] = cpu_to_be32(info->ssize); usb_stor_set_xfer_buf(ptr, 8, srb); @@ -1604,7 +1727,7 @@ static int usbat_flash_transport(struct scsi_cmnd * srb, struct us_data *us) } if (srb->cmnd[0] == MODE_SELECT_10) { - US_DEBUGP("usbat_flash_transport: Gah! MODE_SELECT_10.\n"); + usb_stor_dbg(us, "Gah! MODE_SELECT_10\n"); return USB_STOR_TRANSPORT_ERROR; } @@ -1614,19 +1737,23 @@ static int usbat_flash_transport(struct scsi_cmnd * srb, struct us_data *us) blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8])); - US_DEBUGP("usbat_flash_transport: READ_10: read block 0x%04lx count %ld\n", block, blocks); + usb_stor_dbg(us, "READ_10: read block 0x%04lx count %ld\n", + block, blocks); return usbat_flash_read_data(us, info, block, blocks); } if (srb->cmnd[0] == READ_12) { - // I don't think we'll ever see a READ_12 but support it anyway... + /* + * 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("usbat_flash_transport: READ_12: read block 0x%04lx count %ld\n", block, blocks); + usb_stor_dbg(us, "READ_12: read block 0x%04lx count %ld\n", + block, blocks); return usbat_flash_read_data(us, info, block, blocks); } @@ -1636,25 +1763,29 @@ static int usbat_flash_transport(struct scsi_cmnd * srb, struct us_data *us) blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8])); - US_DEBUGP("usbat_flash_transport: WRITE_10: write block 0x%04lx count %ld\n", block, blocks); + usb_stor_dbg(us, "WRITE_10: write block 0x%04lx count %ld\n", + block, blocks); return usbat_flash_write_data(us, info, block, blocks); } if (srb->cmnd[0] == WRITE_12) { - // I don't think we'll ever see a WRITE_12 but support it anyway... + /* + * 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("usbat_flash_transport: WRITE_12: write block 0x%04lx count %ld\n", block, blocks); + usb_stor_dbg(us, "WRITE_12: write block 0x%04lx count %ld\n", + block, blocks); return usbat_flash_write_data(us, info, block, blocks); } if (srb->cmnd[0] == TEST_UNIT_READY) { - US_DEBUGP("usbat_flash_transport: TEST_UNIT_READY.\n"); + usb_stor_dbg(us, "TEST_UNIT_READY\n"); rc = usbat_flash_check_media(us, info); if (rc != USB_STOR_TRANSPORT_GOOD) @@ -1664,7 +1795,7 @@ static int usbat_flash_transport(struct scsi_cmnd * srb, struct us_data *us) } if (srb->cmnd[0] == REQUEST_SENSE) { - US_DEBUGP("usbat_flash_transport: REQUEST_SENSE.\n"); + usb_stor_dbg(us, "REQUEST_SENSE\n"); memset(ptr, 0, 18); ptr[0] = 0xF0; @@ -1678,35 +1809,66 @@ static int usbat_flash_transport(struct scsi_cmnd * srb, struct us_data *us) } 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) + /* + * 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("usbat_flash_transport: Gah! Unknown command: %d (0x%x)\n", - srb->cmnd[0], srb->cmnd[0]); + usb_stor_dbg(us, "Gah! Unknown command: %d (0x%x)\n", + srb->cmnd[0], srb->cmnd[0]); info->sense_key = 0x05; info->sense_asc = 0x20; info->sense_ascq = 0x00; return USB_STOR_TRANSPORT_FAILED; } -/* - * Default transport function. Attempts to detect which transport function - * should be called, makes it the new default, and calls it. - * - * This function should never be called. Our usbat_init() function detects the - * device type and changes the us->transport ptr to the transport function - * relevant to the device. - * However, we'll support this impossible(?) case anyway. - */ -int usbat_transport(struct scsi_cmnd *srb, struct us_data *us) +static int init_usbat_cd(struct us_data *us) { - struct usbat_info *info = (struct usbat_info*) (us->extra); + return init_usbat(us, USBAT_DEV_HP8200); +} - if (usbat_set_transport(us, info)) - return USB_STOR_TRANSPORT_ERROR; +static int init_usbat_flash(struct us_data *us) +{ + return init_usbat(us, USBAT_DEV_FLASH); +} - return us->transport(srb, us); +static int usbat_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct us_data *us; + int result; + + result = usb_stor_probe1(&us, intf, id, + (id - usbat_usb_ids) + usbat_unusual_dev_list); + if (result) + return result; + + /* The actual transport will be determined later by the + * initialization routine; this is just a placeholder. + */ + us->transport_name = "Shuttle USBAT"; + us->transport = usbat_flash_transport; + us->transport_reset = usb_stor_CB_reset; + us->max_lun = 0; + + result = usb_stor_probe2(us); + return result; } +static struct usb_driver usbat_driver = { + .name = "ums-usbat", + .probe = usbat_probe, + .disconnect = usb_stor_disconnect, + .suspend = usb_stor_suspend, + .resume = usb_stor_resume, + .reset_resume = usb_stor_reset_resume, + .pre_reset = usb_stor_pre_reset, + .post_reset = usb_stor_post_reset, + .id_table = usbat_usb_ids, + .soft_unbind = 1, + .no_dynamic_id = 1, +}; + +module_usb_driver(usbat_driver); |