^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Driver for Alauda-based card readers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Current development and maintenance by:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * (c) 2005 Daniel Drake <dsd@gentoo.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * The 'Alauda' is a chip manufacturered by RATOC for OEM use.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Alauda implements a vendor-specific command set to access two media reader
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * ports (XD, SmartMedia). This driver converts SCSI commands to the commands
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * which are accepted by these devices.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * The driver was developed through reverse-engineering, with the help of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * sddr09 driver which has many similarities, and with some help from the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * (very old) vendor-supplied GPL sma03 driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * For protocol info, see http://alauda.sourceforge.net
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <scsi/scsi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <scsi/scsi_cmnd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <scsi/scsi_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include "usb.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include "transport.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include "protocol.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include "debug.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include "scsiglue.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define DRV_NAME "ums-alauda"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) MODULE_DESCRIPTION("Driver for Alauda-based card readers");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) MODULE_AUTHOR("Daniel Drake <dsd@gentoo.org>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) MODULE_IMPORT_NS(USB_STORAGE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * Status bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define ALAUDA_STATUS_ERROR 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define ALAUDA_STATUS_READY 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * Control opcodes (for request field)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define ALAUDA_GET_XD_MEDIA_STATUS 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define ALAUDA_GET_SM_MEDIA_STATUS 0x98
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define ALAUDA_ACK_XD_MEDIA_CHANGE 0x0a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define ALAUDA_ACK_SM_MEDIA_CHANGE 0x9a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define ALAUDA_GET_XD_MEDIA_SIG 0x86
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define ALAUDA_GET_SM_MEDIA_SIG 0x96
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * Bulk command identity (byte 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define ALAUDA_BULK_CMD 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * Bulk opcodes (byte 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define ALAUDA_BULK_GET_REDU_DATA 0x85
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define ALAUDA_BULK_READ_BLOCK 0x94
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #define ALAUDA_BULK_ERASE_BLOCK 0xa3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) #define ALAUDA_BULK_WRITE_BLOCK 0xb4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #define ALAUDA_BULK_GET_STATUS2 0xb7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define ALAUDA_BULK_RESET_MEDIA 0xe0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) * Port to operate on (byte 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #define ALAUDA_PORT_XD 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #define ALAUDA_PORT_SM 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * LBA and PBA are unsigned ints. Special values.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) #define UNDEF 0xffff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #define SPARE 0xfffe
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #define UNUSABLE 0xfffd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) struct alauda_media_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) unsigned long capacity; /* total media size in bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) unsigned int pagesize; /* page size in bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) unsigned int blocksize; /* number of pages per block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) unsigned int uzonesize; /* number of usable blocks per zone */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) unsigned int zonesize; /* number of blocks per zone */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) unsigned int blockmask; /* mask to get page from address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) unsigned char pageshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) unsigned char blockshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) unsigned char zoneshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) u16 **lba_to_pba; /* logical to physical block map */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) u16 **pba_to_lba; /* physical to logical block map */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct alauda_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) struct alauda_media_info port[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) int wr_ep; /* endpoint to write data out of */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) unsigned char sense_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) unsigned long sense_asc; /* additional sense code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) unsigned long sense_ascq; /* additional sense code qualifier */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #define short_pack(lsb,msb) ( ((u16)(lsb)) | ( ((u16)(msb))<<8 ) )
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define LSB_of(s) ((s)&0xFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) #define MSB_of(s) ((s)>>8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #define MEDIA_PORT(us) us->srb->device->lun
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) #define MEDIA_INFO(us) ((struct alauda_info *)us->extra)->port[MEDIA_PORT(us)]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) #define PBA_LO(pba) ((pba & 0xF) << 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) #define PBA_HI(pba) (pba >> 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) #define PBA_ZONE(pba) (pba >> 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) static int init_alauda(struct us_data *us);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) * The table of devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) vendorName, productName, useProtocol, useTransport, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) initFunction, flags) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) .driver_info = (flags) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) static struct usb_device_id alauda_usb_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) # include "unusual_alauda.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) { } /* Terminating entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) MODULE_DEVICE_TABLE(usb, alauda_usb_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) #undef UNUSUAL_DEV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) * The flags table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) vendor_name, product_name, use_protocol, use_transport, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) init_function, Flags) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) .vendorName = vendor_name, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) .productName = product_name, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) .useProtocol = use_protocol, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) .useTransport = use_transport, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) .initFunction = init_function, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) static struct us_unusual_dev alauda_unusual_dev_list[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) # include "unusual_alauda.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) { } /* Terminating entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) #undef UNUSUAL_DEV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) * Media handling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) struct alauda_card_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) unsigned char id; /* id byte */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) unsigned char chipshift; /* 1<<cs bytes total capacity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) unsigned char pageshift; /* 1<<ps bytes in a page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) unsigned char blockshift; /* 1<<bs pages per block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) unsigned char zoneshift; /* 1<<zs blocks per zone */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) static struct alauda_card_info alauda_card_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) /* NAND flash */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) { 0x6e, 20, 8, 4, 8}, /* 1 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) { 0xe8, 20, 8, 4, 8}, /* 1 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) { 0xec, 20, 8, 4, 8}, /* 1 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) { 0x64, 21, 8, 4, 9}, /* 2 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) { 0xea, 21, 8, 4, 9}, /* 2 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) { 0x6b, 22, 9, 4, 9}, /* 4 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) { 0xe3, 22, 9, 4, 9}, /* 4 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) { 0xe5, 22, 9, 4, 9}, /* 4 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) { 0xe6, 23, 9, 4, 10}, /* 8 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) { 0x73, 24, 9, 5, 10}, /* 16 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) { 0x75, 25, 9, 5, 10}, /* 32 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) { 0x76, 26, 9, 5, 10}, /* 64 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) { 0x79, 27, 9, 5, 10}, /* 128 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) { 0x71, 28, 9, 5, 10}, /* 256 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) /* MASK ROM */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) { 0x5d, 21, 9, 4, 8}, /* 2 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) { 0xd5, 22, 9, 4, 9}, /* 4 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) { 0xd6, 23, 9, 4, 10}, /* 8 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) { 0x57, 24, 9, 4, 11}, /* 16 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) { 0x58, 25, 9, 4, 12}, /* 32 MB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) { 0,}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) static struct alauda_card_info *alauda_card_find_id(unsigned char id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) for (i = 0; alauda_card_ids[i].id != 0; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) if (alauda_card_ids[i].id == id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) return &(alauda_card_ids[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) * ECC computation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) static unsigned char parity[256];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) static unsigned char ecc2[256];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) static void nand_init_ecc(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) int i, j, a;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) parity[0] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) for (i = 1; i < 256; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) parity[i] = (parity[i&(i-1)] ^ 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) for (i = 0; i < 256; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) a = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) for (j = 0; j < 8; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) if (i & (1<<j)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) if ((j & 1) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) a ^= 0x04;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) if ((j & 2) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) a ^= 0x10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) if ((j & 4) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) a ^= 0x40;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) ecc2[i] = ~(a ^ (a<<1) ^ (parity[i] ? 0xa8 : 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) /* compute 3-byte ecc on 256 bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) static void nand_compute_ecc(unsigned char *data, unsigned char *ecc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) int i, j, a;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) unsigned char par = 0, bit, bits[8] = {0};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) /* collect 16 checksum bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) for (i = 0; i < 256; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) par ^= data[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) bit = parity[data[i]];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) for (j = 0; j < 8; j++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) if ((i & (1<<j)) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) bits[j] ^= bit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) /* put 4+4+4 = 12 bits in the ecc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) a = (bits[3] << 6) + (bits[2] << 4) + (bits[1] << 2) + bits[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) ecc[0] = ~(a ^ (a<<1) ^ (parity[par] ? 0xaa : 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) a = (bits[7] << 6) + (bits[6] << 4) + (bits[5] << 2) + bits[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) ecc[1] = ~(a ^ (a<<1) ^ (parity[par] ? 0xaa : 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) ecc[2] = ecc2[par];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) static int nand_compare_ecc(unsigned char *data, unsigned char *ecc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) return (data[0] == ecc[0] && data[1] == ecc[1] && data[2] == ecc[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) static void nand_store_ecc(unsigned char *data, unsigned char *ecc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) memcpy(data, ecc, 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) * Alauda driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) * Forget our PBA <---> LBA mappings for a particular port
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) static void alauda_free_maps (struct alauda_media_info *media_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) unsigned int shift = media_info->zoneshift
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) + media_info->blockshift + media_info->pageshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) unsigned int num_zones = media_info->capacity >> shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) if (media_info->lba_to_pba != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) for (i = 0; i < num_zones; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) kfree(media_info->lba_to_pba[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) media_info->lba_to_pba[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) if (media_info->pba_to_lba != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) for (i = 0; i < num_zones; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) kfree(media_info->pba_to_lba[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) media_info->pba_to_lba[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) * Returns 2 bytes of status data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) * The first byte describes media status, and second byte describes door status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) static int alauda_get_media_status(struct us_data *us, unsigned char *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) unsigned char command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) if (MEDIA_PORT(us) == ALAUDA_PORT_XD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) command = ALAUDA_GET_XD_MEDIA_STATUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) command = ALAUDA_GET_SM_MEDIA_STATUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) rc = usb_stor_ctrl_transfer(us, us->recv_ctrl_pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) command, 0xc0, 0, 1, data, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) usb_stor_dbg(us, "Media status %02X %02X\n", data[0], data[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) * Clears the "media was changed" bit so that we know when it changes again
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) * in the future.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) static int alauda_ack_media(struct us_data *us)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) unsigned char command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) if (MEDIA_PORT(us) == ALAUDA_PORT_XD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) command = ALAUDA_ACK_XD_MEDIA_CHANGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) command = ALAUDA_ACK_SM_MEDIA_CHANGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) return usb_stor_ctrl_transfer(us, us->send_ctrl_pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) command, 0x40, 0, 1, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) * Retrieves a 4-byte media signature, which indicates manufacturer, capacity,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) * and some other details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) static int alauda_get_media_signature(struct us_data *us, unsigned char *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) unsigned char command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) if (MEDIA_PORT(us) == ALAUDA_PORT_XD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) command = ALAUDA_GET_XD_MEDIA_SIG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) command = ALAUDA_GET_SM_MEDIA_SIG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) return usb_stor_ctrl_transfer(us, us->recv_ctrl_pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) command, 0xc0, 0, 0, data, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) * Resets the media status (but not the whole device?)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) static int alauda_reset_media(struct us_data *us)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) unsigned char *command = us->iobuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) memset(command, 0, 9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) command[0] = ALAUDA_BULK_CMD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) command[1] = ALAUDA_BULK_RESET_MEDIA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) command[8] = MEDIA_PORT(us);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) return usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) command, 9, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) * Examines the media and deduces capacity, etc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) static int alauda_init_media(struct us_data *us)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) unsigned char *data = us->iobuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) int ready = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) struct alauda_card_info *media_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) unsigned int num_zones;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) while (ready == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) msleep(20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) if (alauda_get_media_status(us, data) != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) return USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) if (data[0] & 0x10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) ready = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) usb_stor_dbg(us, "We are ready for action!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) if (alauda_ack_media(us) != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) return USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) msleep(10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) if (alauda_get_media_status(us, data) != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) return USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) if (data[0] != 0x14) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) usb_stor_dbg(us, "Media not ready after ack\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) return USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) if (alauda_get_media_signature(us, data) != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) return USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) usb_stor_dbg(us, "Media signature: %4ph\n", data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) media_info = alauda_card_find_id(data[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) if (media_info == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) pr_warn("alauda_init_media: Unrecognised media signature: %4ph\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) return USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) MEDIA_INFO(us).capacity = 1 << media_info->chipshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) usb_stor_dbg(us, "Found media with capacity: %ldMB\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) MEDIA_INFO(us).capacity >> 20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) MEDIA_INFO(us).pageshift = media_info->pageshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) MEDIA_INFO(us).blockshift = media_info->blockshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) MEDIA_INFO(us).zoneshift = media_info->zoneshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) MEDIA_INFO(us).pagesize = 1 << media_info->pageshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) MEDIA_INFO(us).blocksize = 1 << media_info->blockshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) MEDIA_INFO(us).zonesize = 1 << media_info->zoneshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) MEDIA_INFO(us).uzonesize = ((1 << media_info->zoneshift) / 128) * 125;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) MEDIA_INFO(us).blockmask = MEDIA_INFO(us).blocksize - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) num_zones = MEDIA_INFO(us).capacity >> (MEDIA_INFO(us).zoneshift
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) + MEDIA_INFO(us).blockshift + MEDIA_INFO(us).pageshift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) MEDIA_INFO(us).pba_to_lba = kcalloc(num_zones, sizeof(u16*), GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) MEDIA_INFO(us).lba_to_pba = kcalloc(num_zones, sizeof(u16*), GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) if (alauda_reset_media(us) != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) return USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) return USB_STOR_TRANSPORT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) * Examines the media status and does the right thing when the media has gone,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) * appeared, or changed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) static int alauda_check_media(struct us_data *us)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) struct alauda_info *info = (struct alauda_info *) us->extra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) unsigned char status[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) alauda_get_media_status(us, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) /* Check for no media or door open */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) if ((status[0] & 0x80) || ((status[0] & 0x1F) == 0x10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) || ((status[1] & 0x01) == 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) usb_stor_dbg(us, "No media, or door open\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) alauda_free_maps(&MEDIA_INFO(us));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) info->sense_key = 0x02;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) info->sense_asc = 0x3A;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) info->sense_ascq = 0x00;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) return USB_STOR_TRANSPORT_FAILED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) /* Check for media change */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) if (status[0] & 0x08) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) usb_stor_dbg(us, "Media change detected\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) alauda_free_maps(&MEDIA_INFO(us));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) alauda_init_media(us);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) info->sense_key = UNIT_ATTENTION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) info->sense_asc = 0x28;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) info->sense_ascq = 0x00;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) return USB_STOR_TRANSPORT_FAILED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) return USB_STOR_TRANSPORT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) * Checks the status from the 2nd status register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) * Returns 3 bytes of status data, only the first is known
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) static int alauda_check_status2(struct us_data *us)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) unsigned char command[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) ALAUDA_BULK_CMD, ALAUDA_BULK_GET_STATUS2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) 0, 0, 0, 0, 3, 0, MEDIA_PORT(us)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) unsigned char data[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) rc = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) command, 9, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) if (rc != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) rc = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) data, 3, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) if (rc != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) usb_stor_dbg(us, "%3ph\n", data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) if (data[0] & ALAUDA_STATUS_ERROR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) return USB_STOR_XFER_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) return USB_STOR_XFER_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) * Gets the redundancy data for the first page of a PBA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) * Returns 16 bytes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) static int alauda_get_redu_data(struct us_data *us, u16 pba, unsigned char *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) unsigned char command[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) ALAUDA_BULK_CMD, ALAUDA_BULK_GET_REDU_DATA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) PBA_HI(pba), PBA_ZONE(pba), 0, PBA_LO(pba), 0, 0, MEDIA_PORT(us)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) rc = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) command, 9, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) if (rc != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) return usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) data, 16, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) * Finds the first unused PBA in a zone
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) * Returns the absolute PBA of an unused PBA, or 0 if none found.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) static u16 alauda_find_unused_pba(struct alauda_media_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) unsigned int zone)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) u16 *pba_to_lba = info->pba_to_lba[zone];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) for (i = 0; i < info->zonesize; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) if (pba_to_lba[i] == UNDEF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) return (zone << info->zoneshift) + i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) * Reads the redundancy data for all PBA's in a zone
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) * Produces lba <--> pba mappings
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) static int alauda_read_map(struct us_data *us, unsigned int zone)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) unsigned char *data = us->iobuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) int result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) unsigned int zonesize = MEDIA_INFO(us).zonesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) unsigned int uzonesize = MEDIA_INFO(us).uzonesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) unsigned int lba_offset, lba_real, blocknum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) unsigned int zone_base_lba = zone * uzonesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) unsigned int zone_base_pba = zone * zonesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) u16 *lba_to_pba = kcalloc(zonesize, sizeof(u16), GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) u16 *pba_to_lba = kcalloc(zonesize, sizeof(u16), GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) if (lba_to_pba == NULL || pba_to_lba == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) result = USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) usb_stor_dbg(us, "Mapping blocks for zone %d\n", zone);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) /* 1024 PBA's per zone */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) for (i = 0; i < zonesize; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) lba_to_pba[i] = pba_to_lba[i] = UNDEF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) for (i = 0; i < zonesize; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) blocknum = zone_base_pba + i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) result = alauda_get_redu_data(us, blocknum, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) if (result != USB_STOR_XFER_GOOD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) result = USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) /* special PBAs have control field 0^16 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) for (j = 0; j < 16; j++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) if (data[j] != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) goto nonz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) pba_to_lba[i] = UNUSABLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) usb_stor_dbg(us, "PBA %d has no logical mapping\n", blocknum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) nonz:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) /* unwritten PBAs have control field FF^16 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) for (j = 0; j < 16; j++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) if (data[j] != 0xff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) goto nonff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) nonff:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) /* normal PBAs start with six FFs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) if (j < 6) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) usb_stor_dbg(us, "PBA %d has no logical mapping: reserved area = %02X%02X%02X%02X data status %02X block status %02X\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) blocknum,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) data[0], data[1], data[2], data[3],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) data[4], data[5]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) pba_to_lba[i] = UNUSABLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) if ((data[6] >> 4) != 0x01) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) usb_stor_dbg(us, "PBA %d has invalid address field %02X%02X/%02X%02X\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) blocknum, data[6], data[7],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) data[11], data[12]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) pba_to_lba[i] = UNUSABLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) /* check even parity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) if (parity[data[6] ^ data[7]]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) printk(KERN_WARNING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) "alauda_read_map: Bad parity in LBA for block %d"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) " (%02X %02X)\n", i, data[6], data[7]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) pba_to_lba[i] = UNUSABLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) lba_offset = short_pack(data[7], data[6]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) lba_offset = (lba_offset & 0x07FF) >> 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) lba_real = lba_offset + zone_base_lba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) * Every 1024 physical blocks ("zone"), the LBA numbers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) * go back to zero, but are within a higher block of LBA's.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) * Also, there is a maximum of 1000 LBA's per zone.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) * In other words, in PBA 1024-2047 you will find LBA 0-999
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) * which are really LBA 1000-1999. This allows for 24 bad
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) * or special physical blocks per zone.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) if (lba_offset >= uzonesize) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) printk(KERN_WARNING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) "alauda_read_map: Bad low LBA %d for block %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) lba_real, blocknum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) if (lba_to_pba[lba_offset] != UNDEF) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) printk(KERN_WARNING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) "alauda_read_map: "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) "LBA %d seen for PBA %d and %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) lba_real, lba_to_pba[lba_offset], blocknum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) pba_to_lba[i] = lba_real;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) lba_to_pba[lba_offset] = blocknum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) MEDIA_INFO(us).lba_to_pba[zone] = lba_to_pba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) MEDIA_INFO(us).pba_to_lba[zone] = pba_to_lba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) result = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) kfree(lba_to_pba);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) kfree(pba_to_lba);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) return result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) * Checks to see whether we have already mapped a certain zone
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) * If we haven't, the map is generated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) static void alauda_ensure_map_for_zone(struct us_data *us, unsigned int zone)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) if (MEDIA_INFO(us).lba_to_pba[zone] == NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) || MEDIA_INFO(us).pba_to_lba[zone] == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) alauda_read_map(us, zone);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) * Erases an entire block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) static int alauda_erase_block(struct us_data *us, u16 pba)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) unsigned char command[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) ALAUDA_BULK_CMD, ALAUDA_BULK_ERASE_BLOCK, PBA_HI(pba),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) PBA_ZONE(pba), 0, PBA_LO(pba), 0x02, 0, MEDIA_PORT(us)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) unsigned char buf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) usb_stor_dbg(us, "Erasing PBA %d\n", pba);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) rc = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) command, 9, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) if (rc != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) rc = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) buf, 2, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) if (rc != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) usb_stor_dbg(us, "Erase result: %02X %02X\n", buf[0], buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) * Reads data from a certain offset page inside a PBA, including interleaved
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) * redundancy data. Returns (pagesize+64)*pages bytes in data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) static int alauda_read_block_raw(struct us_data *us, u16 pba,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) unsigned int page, unsigned int pages, unsigned char *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) unsigned char command[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) ALAUDA_BULK_CMD, ALAUDA_BULK_READ_BLOCK, PBA_HI(pba),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) PBA_ZONE(pba), 0, PBA_LO(pba) + page, pages, 0, MEDIA_PORT(us)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) usb_stor_dbg(us, "pba %d page %d count %d\n", pba, page, pages);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) rc = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) command, 9, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) if (rc != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) return usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) data, (MEDIA_INFO(us).pagesize + 64) * pages, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) * Reads data from a certain offset page inside a PBA, excluding redundancy
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) * data. Returns pagesize*pages bytes in data. Note that data must be big enough
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) * to hold (pagesize+64)*pages bytes of data, but you can ignore those 'extra'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) * trailing bytes outside this function.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) static int alauda_read_block(struct us_data *us, u16 pba,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) unsigned int page, unsigned int pages, unsigned char *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) int i, rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) unsigned int pagesize = MEDIA_INFO(us).pagesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) rc = alauda_read_block_raw(us, pba, page, pages, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) if (rc != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) /* Cut out the redundancy data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) for (i = 0; i < pages; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) int dest_offset = i * pagesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) int src_offset = i * (pagesize + 64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) memmove(data + dest_offset, data + src_offset, pagesize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) * Writes an entire block of data and checks status after write.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) * Redundancy data must be already included in data. Data should be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) * (pagesize+64)*blocksize bytes in length.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) static int alauda_write_block(struct us_data *us, u16 pba, unsigned char *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) struct alauda_info *info = (struct alauda_info *) us->extra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) unsigned char command[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) ALAUDA_BULK_CMD, ALAUDA_BULK_WRITE_BLOCK, PBA_HI(pba),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) PBA_ZONE(pba), 0, PBA_LO(pba), 32, 0, MEDIA_PORT(us)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) usb_stor_dbg(us, "pba %d\n", pba);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) rc = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) command, 9, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) if (rc != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) rc = usb_stor_bulk_transfer_buf(us, info->wr_ep, data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) (MEDIA_INFO(us).pagesize + 64) * MEDIA_INFO(us).blocksize,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) if (rc != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) return alauda_check_status2(us);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) * Write some data to a specific LBA.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) static int alauda_write_lba(struct us_data *us, u16 lba,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) unsigned int page, unsigned int pages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) unsigned char *ptr, unsigned char *blockbuffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) u16 pba, lbap, new_pba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) unsigned char *bptr, *cptr, *xptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) unsigned char ecc[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) int i, result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) unsigned int uzonesize = MEDIA_INFO(us).uzonesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) unsigned int zonesize = MEDIA_INFO(us).zonesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) unsigned int pagesize = MEDIA_INFO(us).pagesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) unsigned int blocksize = MEDIA_INFO(us).blocksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) unsigned int lba_offset = lba % uzonesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) unsigned int new_pba_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) unsigned int zone = lba / uzonesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) alauda_ensure_map_for_zone(us, zone);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) pba = MEDIA_INFO(us).lba_to_pba[zone][lba_offset];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) if (pba == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) * Maybe it is impossible to write to PBA 1.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) * Fake success, but don't do anything.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) printk(KERN_WARNING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) "alauda_write_lba: avoid writing to pba 1\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) return USB_STOR_TRANSPORT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) new_pba = alauda_find_unused_pba(&MEDIA_INFO(us), zone);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) if (!new_pba) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) printk(KERN_WARNING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) "alauda_write_lba: Out of unused blocks\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) return USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) /* read old contents */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) if (pba != UNDEF) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) result = alauda_read_block_raw(us, pba, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) blocksize, blockbuffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) if (result != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) return result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) memset(blockbuffer, 0, blocksize * (pagesize + 64));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) lbap = (lba_offset << 1) | 0x1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) if (parity[MSB_of(lbap) ^ LSB_of(lbap)])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) lbap ^= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) /* check old contents and fill lba */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) for (i = 0; i < blocksize; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) bptr = blockbuffer + (i * (pagesize + 64));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) cptr = bptr + pagesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) nand_compute_ecc(bptr, ecc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) if (!nand_compare_ecc(cptr+13, ecc)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) usb_stor_dbg(us, "Warning: bad ecc in page %d- of pba %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) i, pba);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) nand_store_ecc(cptr+13, ecc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) nand_compute_ecc(bptr + (pagesize / 2), ecc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) if (!nand_compare_ecc(cptr+8, ecc)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) usb_stor_dbg(us, "Warning: bad ecc in page %d+ of pba %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) i, pba);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) nand_store_ecc(cptr+8, ecc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) cptr[6] = cptr[11] = MSB_of(lbap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) cptr[7] = cptr[12] = LSB_of(lbap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) /* copy in new stuff and compute ECC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) xptr = ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) for (i = page; i < page+pages; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) bptr = blockbuffer + (i * (pagesize + 64));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) cptr = bptr + pagesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) memcpy(bptr, xptr, pagesize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) xptr += pagesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) nand_compute_ecc(bptr, ecc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) nand_store_ecc(cptr+13, ecc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) nand_compute_ecc(bptr + (pagesize / 2), ecc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) nand_store_ecc(cptr+8, ecc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) result = alauda_write_block(us, new_pba, blockbuffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) if (result != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) return result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) new_pba_offset = new_pba - (zone * zonesize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) MEDIA_INFO(us).pba_to_lba[zone][new_pba_offset] = lba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) MEDIA_INFO(us).lba_to_pba[zone][lba_offset] = new_pba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) usb_stor_dbg(us, "Remapped LBA %d to PBA %d\n", lba, new_pba);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) if (pba != UNDEF) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) unsigned int pba_offset = pba - (zone * zonesize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) result = alauda_erase_block(us, pba);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) if (result != USB_STOR_XFER_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) return result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) MEDIA_INFO(us).pba_to_lba[zone][pba_offset] = UNDEF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) return USB_STOR_TRANSPORT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) * Read data from a specific sector address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) static int alauda_read_data(struct us_data *us, unsigned long address,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) unsigned int sectors)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) unsigned char *buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) u16 lba, max_lba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) unsigned int page, len, offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) unsigned int blockshift = MEDIA_INFO(us).blockshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) unsigned int pageshift = MEDIA_INFO(us).pageshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) unsigned int blocksize = MEDIA_INFO(us).blocksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) unsigned int pagesize = MEDIA_INFO(us).pagesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) unsigned int uzonesize = MEDIA_INFO(us).uzonesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) struct scatterlist *sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) int result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) * Since we only read in one block at a time, we have to create
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) * a bounce buffer and move the data a piece at a time between the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) * bounce buffer and the actual transfer buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) * We make this buffer big enough to hold temporary redundancy data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) * which we use when reading the data blocks.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) len = min(sectors, blocksize) * (pagesize + 64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) buffer = kmalloc(len, GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) if (!buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) return USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) /* Figure out the initial LBA and page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) lba = address >> blockshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) page = (address & MEDIA_INFO(us).blockmask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) max_lba = MEDIA_INFO(us).capacity >> (blockshift + pageshift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) result = USB_STOR_TRANSPORT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) sg = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) while (sectors > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) unsigned int zone = lba / uzonesize; /* integer division */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) unsigned int lba_offset = lba - (zone * uzonesize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) unsigned int pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) u16 pba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) alauda_ensure_map_for_zone(us, zone);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) /* Not overflowing capacity? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) if (lba >= max_lba) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) usb_stor_dbg(us, "Error: Requested lba %u exceeds maximum %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) lba, max_lba);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) result = USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) /* Find number of pages we can read in this block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) pages = min(sectors, blocksize - page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) len = pages << pageshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) /* Find where this lba lives on disk */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) pba = MEDIA_INFO(us).lba_to_pba[zone][lba_offset];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) if (pba == UNDEF) { /* this lba was never written */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) usb_stor_dbg(us, "Read %d zero pages (LBA %d) page %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) pages, lba, page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) * This is not really an error. It just means
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) * that the block has never been written.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) * Instead of returning USB_STOR_TRANSPORT_ERROR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) * it is better to return all zero data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) memset(buffer, 0, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) usb_stor_dbg(us, "Read %d pages, from PBA %d (LBA %d) page %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) pages, pba, lba, page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) result = alauda_read_block(us, pba, page, pages, buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) if (result != USB_STOR_TRANSPORT_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) /* Store the data in the transfer buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) usb_stor_access_xfer_buf(buffer, len, us->srb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) &sg, &offset, TO_XFER_BUF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) page = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) lba++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) sectors -= pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) kfree(buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) return result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) * Write data to a specific sector address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) static int alauda_write_data(struct us_data *us, unsigned long address,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) unsigned int sectors)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) unsigned char *buffer, *blockbuffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) unsigned int page, len, offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) unsigned int blockshift = MEDIA_INFO(us).blockshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) unsigned int pageshift = MEDIA_INFO(us).pageshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) unsigned int blocksize = MEDIA_INFO(us).blocksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) unsigned int pagesize = MEDIA_INFO(us).pagesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) struct scatterlist *sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) u16 lba, max_lba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) int result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) * Since we don't write the user data directly to the device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) * we have to create a bounce buffer and move the data a piece
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) * at a time between the bounce buffer and the actual transfer buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) len = min(sectors, blocksize) * pagesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) buffer = kmalloc(len, GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) if (!buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) return USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) * We also need a temporary block buffer, where we read in the old data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) * overwrite parts with the new data, and manipulate the redundancy data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) blockbuffer = kmalloc_array(pagesize + 64, blocksize, GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) if (!blockbuffer) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) kfree(buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) return USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) /* Figure out the initial LBA and page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) lba = address >> blockshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) page = (address & MEDIA_INFO(us).blockmask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) max_lba = MEDIA_INFO(us).capacity >> (pageshift + blockshift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) result = USB_STOR_TRANSPORT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) sg = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) while (sectors > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) /* Write as many sectors as possible in this block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) unsigned int pages = min(sectors, blocksize - page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) len = pages << pageshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) /* Not overflowing capacity? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) if (lba >= max_lba) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) usb_stor_dbg(us, "Requested lba %u exceeds maximum %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) lba, max_lba);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) result = USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) /* Get the data from the transfer buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) usb_stor_access_xfer_buf(buffer, len, us->srb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) &sg, &offset, FROM_XFER_BUF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) result = alauda_write_lba(us, lba, page, pages, buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) blockbuffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) if (result != USB_STOR_TRANSPORT_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) page = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) lba++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) sectors -= pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) kfree(buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) kfree(blockbuffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) return result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) * Our interface with the rest of the world
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) static void alauda_info_destructor(void *extra)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) struct alauda_info *info = (struct alauda_info *) extra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) int port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) if (!info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) for (port = 0; port < 2; port++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) struct alauda_media_info *media_info = &info->port[port];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) alauda_free_maps(media_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) kfree(media_info->lba_to_pba);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) kfree(media_info->pba_to_lba);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) * Initialize alauda_info struct and find the data-write endpoint
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) static int init_alauda(struct us_data *us)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) struct alauda_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) struct usb_host_interface *altsetting = us->pusb_intf->cur_altsetting;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) nand_init_ecc();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) us->extra = kzalloc(sizeof(struct alauda_info), GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) if (!us->extra)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) return USB_STOR_TRANSPORT_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) info = (struct alauda_info *) us->extra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) us->extra_destructor = alauda_info_destructor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) info->wr_ep = usb_sndbulkpipe(us->pusb_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) altsetting->endpoint[0].desc.bEndpointAddress
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) & USB_ENDPOINT_NUMBER_MASK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) return USB_STOR_TRANSPORT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) static int alauda_transport(struct scsi_cmnd *srb, struct us_data *us)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) struct alauda_info *info = (struct alauda_info *) us->extra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) unsigned char *ptr = us->iobuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) static unsigned char inquiry_response[36] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) 0x00, 0x80, 0x00, 0x01, 0x1F, 0x00, 0x00, 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) if (srb->cmnd[0] == INQUIRY) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) usb_stor_dbg(us, "INQUIRY - Returning bogus response\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) memcpy(ptr, inquiry_response, sizeof(inquiry_response));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) fill_inquiry_response(us, ptr, 36);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) return USB_STOR_TRANSPORT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) if (srb->cmnd[0] == TEST_UNIT_READY) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) usb_stor_dbg(us, "TEST_UNIT_READY\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) return alauda_check_media(us);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) if (srb->cmnd[0] == READ_CAPACITY) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) unsigned int num_zones;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) unsigned long capacity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) rc = alauda_check_media(us);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) if (rc != USB_STOR_TRANSPORT_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) num_zones = MEDIA_INFO(us).capacity >> (MEDIA_INFO(us).zoneshift
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) + MEDIA_INFO(us).blockshift + MEDIA_INFO(us).pageshift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) capacity = num_zones * MEDIA_INFO(us).uzonesize
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) * MEDIA_INFO(us).blocksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) /* Report capacity and page size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) ((__be32 *) ptr)[0] = cpu_to_be32(capacity - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) ((__be32 *) ptr)[1] = cpu_to_be32(512);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) usb_stor_set_xfer_buf(ptr, 8, srb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) return USB_STOR_TRANSPORT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) if (srb->cmnd[0] == READ_10) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) unsigned int page, pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) rc = alauda_check_media(us);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) if (rc != USB_STOR_TRANSPORT_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) page = short_pack(srb->cmnd[3], srb->cmnd[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) page <<= 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) page |= short_pack(srb->cmnd[5], srb->cmnd[4]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) pages = short_pack(srb->cmnd[8], srb->cmnd[7]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) usb_stor_dbg(us, "READ_10: page %d pagect %d\n", page, pages);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) return alauda_read_data(us, page, pages);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) if (srb->cmnd[0] == WRITE_10) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) unsigned int page, pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) rc = alauda_check_media(us);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) if (rc != USB_STOR_TRANSPORT_GOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) page = short_pack(srb->cmnd[3], srb->cmnd[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) page <<= 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) page |= short_pack(srb->cmnd[5], srb->cmnd[4]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) pages = short_pack(srb->cmnd[8], srb->cmnd[7]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) usb_stor_dbg(us, "WRITE_10: page %d pagect %d\n", page, pages);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) return alauda_write_data(us, page, pages);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) if (srb->cmnd[0] == REQUEST_SENSE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) usb_stor_dbg(us, "REQUEST_SENSE\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) memset(ptr, 0, 18);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) ptr[0] = 0xF0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) ptr[2] = info->sense_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) ptr[7] = 11;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) ptr[12] = info->sense_asc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) ptr[13] = info->sense_ascq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) usb_stor_set_xfer_buf(ptr, 18, srb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) return USB_STOR_TRANSPORT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) * sure. whatever. not like we can stop the user from popping
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) * the media out of the device (no locking doors, etc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) return USB_STOR_TRANSPORT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) usb_stor_dbg(us, "Gah! Unknown command: %d (0x%x)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) srb->cmnd[0], srb->cmnd[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) info->sense_key = 0x05;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) info->sense_asc = 0x20;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) info->sense_ascq = 0x00;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) return USB_STOR_TRANSPORT_FAILED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) static struct scsi_host_template alauda_host_template;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) static int alauda_probe(struct usb_interface *intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) const struct usb_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) struct us_data *us;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) int result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) result = usb_stor_probe1(&us, intf, id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) (id - alauda_usb_ids) + alauda_unusual_dev_list,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) &alauda_host_template);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) if (result)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) return result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) us->transport_name = "Alauda Control/Bulk";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) us->transport = alauda_transport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) us->transport_reset = usb_stor_Bulk_reset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) us->max_lun = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) result = usb_stor_probe2(us);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) return result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) static struct usb_driver alauda_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) .name = DRV_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) .probe = alauda_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) .disconnect = usb_stor_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) .suspend = usb_stor_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) .resume = usb_stor_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) .reset_resume = usb_stor_reset_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) .pre_reset = usb_stor_pre_reset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) .post_reset = usb_stor_post_reset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) .id_table = alauda_usb_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) .soft_unbind = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) .no_dynamic_id = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) module_usb_stor_driver(alauda_driver, alauda_host_template, DRV_NAME);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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