diff options
Diffstat (limited to 'libdpf/scsi.c')
| -rw-r--r-- | libdpf/scsi.c | 629 |
1 files changed, 322 insertions, 307 deletions
diff --git a/libdpf/scsi.c b/libdpf/scsi.c index 3f82fc7..e761299 100644 --- a/libdpf/scsi.c +++ b/libdpf/scsi.c @@ -4,7 +4,7 @@ */ #include "sglib.h" -#include "usbuser.h" // our user defined flash commands +#include "usbuser.h" // our user defined flash commands #include "dpf.h" #include <scsi/scsi.h> @@ -16,64 +16,72 @@ #include <fcntl.h> -int do_scsi(int fd, unsigned char *cmd, int cmdlen, char out, - unsigned char *data, unsigned long block_len) +int +do_scsi (int fd, unsigned char *cmd, int cmdlen, char out, + unsigned char *data, unsigned long block_len) { - int error; - unsigned char sensebuf[32]; - sg_io_hdr_t io_hdr; - memset(&io_hdr, 0, sizeof(sg_io_hdr_t)); - - io_hdr.interface_id = 'S'; - io_hdr.sbp = sensebuf; - io_hdr.mx_sb_len = sizeof(sensebuf); - if (data == 0) { - io_hdr.dxfer_direction = SG_DXFER_NONE; - } else { - if (out) { - io_hdr.dxfer_direction = SG_DXFER_TO_DEV; - } else { - io_hdr.dxfer_direction = SG_DXFER_FROM_DEV; - } - } - io_hdr.dxferp = data; - io_hdr.dxfer_len = block_len; - io_hdr.cmdp = cmd; - io_hdr.cmd_len = cmdlen; - io_hdr.timeout = 5000; // in ms - error = ioctl(fd, SG_IO, &io_hdr); - if (error < 0) perror("calling SCSI ioctl()"); - return error; + int error; + unsigned char sensebuf[32]; + sg_io_hdr_t io_hdr; + memset (&io_hdr, 0, sizeof (sg_io_hdr_t)); + + io_hdr.interface_id = 'S'; + io_hdr.sbp = sensebuf; + io_hdr.mx_sb_len = sizeof (sensebuf); + if (data == 0) + { + io_hdr.dxfer_direction = SG_DXFER_NONE; + } + else + { + if (out) + { + io_hdr.dxfer_direction = SG_DXFER_TO_DEV; + } + else + { + io_hdr.dxfer_direction = SG_DXFER_FROM_DEV; + } + } + io_hdr.dxferp = data; + io_hdr.dxfer_len = block_len; + io_hdr.cmdp = cmd; + io_hdr.cmd_len = cmdlen; + io_hdr.timeout = 5000; // in ms + error = ioctl (fd, SG_IO, &io_hdr); + if (error < 0) + perror ("calling SCSI ioctl()"); + return error; } -int wrap_scsi(DPFContext *h, unsigned char *cmd, int cmdlen, char out, - unsigned char *data, unsigned long block_len) +int +wrap_scsi (DPFContext * h, unsigned char *cmd, int cmdlen, char out, + unsigned char *data, unsigned long block_len) { - int error; - switch (h->mode) { - case MODE_USB: - error = emulate_scsi(h->dev.udev, - cmd, cmdlen, out, data, block_len); - break; - case MODE_SG: - error = do_scsi(h->dev.fd, cmd, cmdlen, out, data, block_len); - break; - case MODE_USBHID: - fprintf(stderr, "USBHID mode not (yet) supported\n"); - error = -1; - } - return error; + int error; + switch (h->mode) + { + case MODE_USB: + error = emulate_scsi (h->dev.udev, cmd, cmdlen, out, data, block_len); + break; + case MODE_SG: + error = do_scsi (h->dev.fd, cmd, cmdlen, out, data, block_len); + break; + case MODE_USBHID: + fprintf (stderr, "USBHID mode not (yet) supported\n"); + error = -1; + } + return error; } /** Vendor command for our hacks */ -static -unsigned char g_excmd[16] = { - 0xcd, 0, 0, 0, - 0, 6, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0 +static unsigned char g_excmd[16] = { + 0xcd, 0, 0, 0, + 0, 6, 0, 0, + 0, 0, 0, 0, + 0, 0, 0, 0 }; @@ -83,330 +91,337 @@ const char idstring[] = "buildwin Photo Frame 1.01"; #define INQ_REPLY_LEN 96 -int sgdev_open(const char *portname, int *fd) +int +sgdev_open (const char *portname, int *fd) { - int error; - - static - unsigned char inquiry[] = { - INQUIRY, 0, 0, 0, - INQ_REPLY_LEN, 0 - }; - - static unsigned char inqbuf[INQ_REPLY_LEN + 2]; - - *fd = open(portname, O_RDONLY | O_NONBLOCK ); - error = do_scsi(*fd, inquiry, sizeof(inquiry), DIR_IN, inqbuf, - INQ_REPLY_LEN); - - if (error < 0) { - fprintf(stderr, "SCSI inquiry failed\n"); - close(*fd); error = DEVERR_OPEN; - } else - if (memcmp(idstring, &inqbuf[8], sizeof(idstring) - 1) != 0) { - close(*fd); error = DEVERR_OPEN; - fprintf(stderr, "Not a photo frame. Refuse to open device.\n"); - } - return error; + int error; + + static unsigned char inquiry[] = { + INQUIRY, 0, 0, 0, + INQ_REPLY_LEN, 0 + }; + + static unsigned char inqbuf[INQ_REPLY_LEN + 2]; + + *fd = open (portname, O_RDONLY | O_NONBLOCK); + error = do_scsi (*fd, inquiry, sizeof (inquiry), DIR_IN, inqbuf, + INQ_REPLY_LEN); + + if (error < 0) + { + fprintf (stderr, "SCSI inquiry failed\n"); + close (*fd); + error = DEVERR_OPEN; + } + else if (memcmp (idstring, &inqbuf[8], sizeof (idstring) - 1) != 0) + { + close (*fd); + error = DEVERR_OPEN; + fprintf (stderr, "Not a photo frame. Refuse to open device.\n"); + } + return error; } -int probe(DPFHANDLE h) +int +probe (DPFHANDLE h) { - int ret; - - // We abuse a command that just responds with a '0' status in the - // original firmware. - static unsigned char buf[5]; - - - static - unsigned char cmd[16] = { - 0xcd, 0, 0, 0, - 0, 3, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0 - }; - - cmd[5] = 3; - ret = wrap_scsi(h, cmd, sizeof(cmd), DIR_IN, 0, 0); - - switch (ret) { - case 0: - // The original protocol. - fprintf(stderr, - "Warning: This firmware can not lock the flash\n"); - break; - case 1: - // The improved hack - h->flags |= FLAG_CAN_LOCK; - break; - } - - cmd[5] = 2; // get LCD parameters - ret = wrap_scsi(h, cmd, sizeof(cmd), DIR_IN, buf, 5); - h->width = (buf[0]) | (buf[1] << 8); - h->height = (buf[2]) | (buf[3] << 8); - h->bpp = 2; - - return ret; + int ret; + + // We abuse a command that just responds with a '0' status in the + // original firmware. + static unsigned char buf[5]; + + + static unsigned char cmd[16] = { + 0xcd, 0, 0, 0, + 0, 3, 0, 0, + 0, 0, 0, 0, + 0, 0, 0, 0 + }; + + cmd[5] = 3; + ret = wrap_scsi (h, cmd, sizeof (cmd), DIR_IN, 0, 0); + + switch (ret) + { + case 0: + // The original protocol. + fprintf (stderr, "Warning: This firmware can not lock the flash\n"); + break; + case 1: + // The improved hack + h->flags |= FLAG_CAN_LOCK; + break; + } + + cmd[5] = 2; // get LCD parameters + ret = wrap_scsi (h, cmd, sizeof (cmd), DIR_IN, buf, 5); + h->width = (buf[0]) | (buf[1] << 8); + h->height = (buf[2]) | (buf[3] << 8); + h->bpp = 2; + + return ret; } /* Memory stuff */ -static -int mem_read_scsi(DPFContext *h, unsigned char *buf, ADDR offset, int len) +static int +mem_read_scsi (DPFContext * h, unsigned char *buf, ADDR offset, int len) { - unsigned char *cmd = g_excmd; + unsigned char *cmd = g_excmd; - if (h->mode == MODE_USBHID) return DEVERR_UNSUPP; + if (h->mode == MODE_USBHID) + return DEVERR_UNSUPP; - cmd[6] = USBCMD_MEMREAD; // memory_read - cmd[7] = offset; - cmd[8] = offset >> 8; - cmd[9] = len; - cmd[10] = len >> 8; + cmd[6] = USBCMD_MEMREAD; // memory_read + cmd[7] = offset; + cmd[8] = offset >> 8; + cmd[9] = len; + cmd[10] = len >> 8; - return wrap_scsi(h, cmd, sizeof(g_excmd), DIR_IN, buf, len); + return wrap_scsi (h, cmd, sizeof (g_excmd), DIR_IN, buf, len); } -int mem_write_scsi(DPFContext *h, - ADDR dst, const unsigned char *src, unsigned short n) +int +mem_write_scsi (DPFContext * h, + ADDR dst, const unsigned char *src, unsigned short n) { - unsigned char *cmd = g_excmd; + unsigned char *cmd = g_excmd; - cmd[6] = 0x01; // memory_write - cmd[7] = dst; - cmd[8] = dst >> 8; - cmd[9] = n; - cmd[10] = n >> 8; + cmd[6] = 0x01; // memory_write + cmd[7] = dst; + cmd[8] = dst >> 8; + cmd[9] = n; + cmd[10] = n >> 8; - return wrap_scsi(h, cmd, sizeof(g_excmd), DIR_OUT, (unsigned char *) src, n); + return wrap_scsi (h, cmd, sizeof (g_excmd), DIR_OUT, (unsigned char *) src, + n); } /* Flash stuff, SCSI wrapped */ -static -int flash_cmd_scsi(DPFContext *h, int command, int cmdlen, ADDR addr) +static int +flash_cmd_scsi (DPFContext * h, int command, int cmdlen, ADDR addr) { - static - unsigned char cmd[16] = { - 0xcb, 0, 0, 0, 0, 0, - 1, 0, 0, 0, - 0, 0, 0, 0, - 0, 0 - }; - - cmd[10] = command; - cmd[6] = cmdlen; - - // Sector number or addr: - cmd[13] = addr; - cmd[12] = addr >> 8; - cmd[11] = addr >> 16; - - return wrap_scsi(h, cmd, sizeof(cmd), DIR_IN, 0, 0); + static unsigned char cmd[16] = { + 0xcb, 0, 0, 0, 0, 0, + 1, 0, 0, 0, + 0, 0, 0, 0, + 0, 0 + }; + + cmd[10] = command; + cmd[6] = cmdlen; + + // Sector number or addr: + cmd[13] = addr; + cmd[12] = addr >> 8; + cmd[11] = addr >> 16; + + return wrap_scsi (h, cmd, sizeof (cmd), DIR_IN, 0, 0); } -int flash_status_scsi(DPFHANDLE h, uint8_t *status) +int +flash_status_scsi (DPFHANDLE h, uint8_t * status) { - *status = 0; - // FIXME : Really get status - return 0; + *status = 0; + // FIXME : Really get status + return 0; } -static -int flash_read_scsi(DPFContext *h, unsigned char *buf, ADDR offset, int len) +static int +flash_read_scsi (DPFContext * h, unsigned char *buf, ADDR offset, int len) { - static - unsigned char cmd[16] = { - 0xcd, 0, 0, 0, 0, 0, - 0x04, /* num of bytes: */ 0, 0, 0, - SPM_READ, /* SPI offset: */ 0, 0, 0, - 0, 0 - }; - - cmd[9] = len >> 0; - cmd[8] = len >> 8; - cmd[7] = len >> 16; - - cmd[13] = offset >> 0; - cmd[12] = offset >> 8; - cmd[11] = offset >> 16; - - return wrap_scsi(h, cmd, sizeof(cmd), DIR_IN, buf, len); + static unsigned char cmd[16] = { + 0xcd, 0, 0, 0, 0, 0, + 0x04, /* num of bytes: */ 0, 0, 0, + SPM_READ, /* SPI offset: */ 0, 0, 0, + 0, 0 + }; + + cmd[9] = len >> 0; + cmd[8] = len >> 8; + cmd[7] = len >> 16; + + cmd[13] = offset >> 0; + cmd[12] = offset >> 8; + cmd[11] = offset >> 16; + + return wrap_scsi (h, cmd, sizeof (cmd), DIR_IN, buf, len); } -static -int flash_writechunk_scsi(DPFContext *h, - const unsigned char *buf, ADDR offset, int len) +static int +flash_writechunk_scsi (DPFContext * h, + const unsigned char *buf, ADDR offset, int len) { - int error; - static - unsigned char cmd[16] = { - 0xcb, 0, 0, 0, 0, 0, - 4, /* num of bytes: */ 0, 0, 0, - SPM_PP, /* SPI offset: */ 0, 0, 0, - 0, 0 - }; - - if (len > MAX_CHUNKSIZE) len = MAX_CHUNKSIZE; - - cmd[9] = len >> 0; - cmd[8] = len >> 8; - cmd[7] = len >> 16; - - cmd[13] = offset >> 0; - cmd[12] = offset >> 8; - cmd[11] = offset >> 16; - - error = wrap_scsi(h, cmd, sizeof(cmd), DIR_OUT, - (unsigned char*) buf, len); - if (error < 0) return error; - return len; + int error; + static unsigned char cmd[16] = { + 0xcb, 0, 0, 0, 0, 0, + 4, /* num of bytes: */ 0, 0, 0, + SPM_PP, /* SPI offset: */ 0, 0, 0, + 0, 0 + }; + + if (len > MAX_CHUNKSIZE) + len = MAX_CHUNKSIZE; + + cmd[9] = len >> 0; + cmd[8] = len >> 8; + cmd[7] = len >> 16; + + cmd[13] = offset >> 0; + cmd[12] = offset >> 8; + cmd[11] = offset >> 16; + + error = wrap_scsi (h, cmd, sizeof (cmd), DIR_OUT, + (unsigned char *) buf, len); + if (error < 0) + return error; + return len; } -int flash_lock_usb(DPFContext *h, char enable) +int +flash_lock_usb (DPFContext * h, char enable) { - unsigned char *cmd = g_excmd; + unsigned char *cmd = g_excmd; - if (!(h->flags & FLAG_CAN_LOCK)) return DEVERR_UNSUPP; + if (!(h->flags & FLAG_CAN_LOCK)) + return DEVERR_UNSUPP; - printf("Lock flash %d\n", enable); - cmd[6] = USBCMD_FLASHLOCK; // flash lock - cmd[7] = enable; + printf ("Lock flash %d\n", enable); + cmd[6] = USBCMD_FLASHLOCK; // flash lock + cmd[7] = enable; - wrap_scsi(h, cmd, sizeof(g_excmd), DIR_IN, 0, 0); - return 0; + wrap_scsi (h, cmd, sizeof (g_excmd), DIR_IN, 0, 0); + return 0; } -static -int flash_probe_scsi(DPFContext *h, unsigned char *id) +static int +flash_probe_scsi (DPFContext * h, unsigned char *id) { - int error; - static - unsigned char buf[64]; - static - unsigned char cmd[16] = { - 0xcd, 0, 0, 0, 0, 0, - 1, sizeof(buf) >> 16, sizeof(buf) >> 8, sizeof(buf) >> 0, - // flash command sequence: - SPM_RDID, 0, 0, 0, - 0, 0 - }; - - error = wrap_scsi(h, cmd, sizeof(cmd), DIR_IN, buf, sizeof(buf)); - id[0] = buf[0]; id[1] = buf[1]; id[2] = buf[2]; - return error; + int error; + static unsigned char buf[64]; + static unsigned char cmd[16] = { + 0xcd, 0, 0, 0, 0, 0, + 1, sizeof (buf) >> 16, sizeof (buf) >> 8, sizeof (buf) >> 0, + // flash command sequence: + SPM_RDID, 0, 0, 0, + 0, 0 + }; + + error = wrap_scsi (h, cmd, sizeof (cmd), DIR_IN, buf, sizeof (buf)); + id[0] = buf[0]; + id[1] = buf[1]; + id[2] = buf[2]; + return error; } -static -int go_scsi(DPFContext *h, ADDR start) +static int +go_scsi (DPFContext * h, ADDR start) { - unsigned char *cmd = g_excmd; - cmd[6] = 0x02; // execute - cmd[7] = start; - cmd[8] = start >> 8; + unsigned char *cmd = g_excmd; + cmd[6] = 0x02; // execute + cmd[7] = start; + cmd[8] = start >> 8; - return wrap_scsi(h, cmd, sizeof(g_excmd), DIR_IN, 0, 0); + return wrap_scsi (h, cmd, sizeof (g_excmd), DIR_IN, 0, 0); } -static -int bootstrap_scsi(DPFContext *h, - ADDR dest, unsigned char *src, unsigned short n, ADDR start) +static int +bootstrap_scsi (DPFContext * h, + ADDR dest, unsigned char *src, unsigned short n, ADDR start) { - unsigned char *cmd = g_excmd; + unsigned char *cmd = g_excmd; - cmd[6] = USBCMD_APPLOAD; // Enter bootstrap mode - cmd[7] = dest; - cmd[8] = dest >> 8; - cmd[9] = n; - cmd[10] = n >> 8; - cmd[11] = start; - cmd[12] = start >> 8; + cmd[6] = USBCMD_APPLOAD; // Enter bootstrap mode + cmd[7] = dest; + cmd[8] = dest >> 8; + cmd[9] = n; + cmd[10] = n >> 8; + cmd[11] = start; + cmd[12] = start >> 8; - return wrap_scsi(h, cmd, sizeof(g_excmd), DIR_OUT, src, n); + return wrap_scsi (h, cmd, sizeof (g_excmd), DIR_OUT, src, n); } -AccessMethods -scsi_methods = { - .mem_read = mem_read_scsi, - .mem_write = mem_write_scsi, - .go = go_scsi, - .bootstrap = bootstrap_scsi, - .flash_probe = flash_probe_scsi, - .flash_cmd = flash_cmd_scsi, - .flash_status = flash_status_scsi, - .flash_read = flash_read_scsi, - .flash_writechunk = flash_writechunk_scsi, - .flash_lock = flash_lock_usb, -}; +AccessMethods scsi_methods = +{ +.mem_read = mem_read_scsi,.mem_write = mem_write_scsi,.go = + go_scsi,.bootstrap = bootstrap_scsi,.flash_probe = + flash_probe_scsi,.flash_cmd = flash_cmd_scsi,.flash_status = + flash_status_scsi,.flash_read = flash_read_scsi,.flash_writechunk = + flash_writechunk_scsi,.flash_lock = flash_lock_usb,}; //////////////////////////////////////////////////////////////////////////// // SCSI only high level commands: -int dpf_setcol(DPFContext *h, const unsigned char *rgb) +int +dpf_setcol (DPFContext * h, const unsigned char *rgb) { - unsigned char *cmd = g_excmd; + unsigned char *cmd = g_excmd; - if (h->mode == MODE_USBHID) return DEVERR_UNSUPP; + if (h->mode == MODE_USBHID) + return DEVERR_UNSUPP; - cmd[6] = USBCMD_SETPROPERTY; - cmd[7] = PROPERTY_FGCOLOR; - cmd[8] = PROPERTY_FGCOLOR >> 8; + cmd[6] = USBCMD_SETPROPERTY; + cmd[7] = PROPERTY_FGCOLOR; + cmd[8] = PROPERTY_FGCOLOR >> 8; - cmd[9] = RGB565_0(rgb[0], rgb[1], rgb[2]); - cmd[10] = RGB565_1(rgb[0], rgb[1], rgb[2]); + cmd[9] = RGB565_0 (rgb[0], rgb[1], rgb[2]); + cmd[10] = RGB565_1 (rgb[0], rgb[1], rgb[2]); - return wrap_scsi(h, cmd, sizeof(g_excmd), DIR_OUT, NULL, 0); + return wrap_scsi (h, cmd, sizeof (g_excmd), DIR_OUT, NULL, 0); } -int dpf_screen_blit(DPFContext *h, - const unsigned char *buf, short rect[4]) +int +dpf_screen_blit (DPFContext * h, const unsigned char *buf, short rect[4]) { - unsigned long len = (rect[2] - rect[0]) * (rect[3] - rect[1]); - len <<= 1; - unsigned char *cmd = g_excmd; - - if (h->mode == MODE_USBHID) return DEVERR_UNSUPP; - - cmd[6] = USBCMD_BLIT; - cmd[7] = rect[0]; - cmd[8] = rect[0] >> 8; - cmd[9] = rect[1]; - cmd[10] = rect[1] >> 8; - cmd[11] = rect[2] - 1; - cmd[12] = (rect[2] - 1) >> 8; - cmd[13] = rect[3] - 1; - cmd[14] = (rect[3] - 1) >> 8; - cmd[15] = 0; - - return wrap_scsi(h, cmd, sizeof(g_excmd), DIR_OUT, - (unsigned char*) buf, len); + unsigned long len = (rect[2] - rect[0]) * (rect[3] - rect[1]); + len <<= 1; + unsigned char *cmd = g_excmd; + + if (h->mode == MODE_USBHID) + return DEVERR_UNSUPP; + + cmd[6] = USBCMD_BLIT; + cmd[7] = rect[0]; + cmd[8] = rect[0] >> 8; + cmd[9] = rect[1]; + cmd[10] = rect[1] >> 8; + cmd[11] = rect[2] - 1; + cmd[12] = (rect[2] - 1) >> 8; + cmd[13] = rect[3] - 1; + cmd[14] = (rect[3] - 1) >> 8; + cmd[15] = 0; + + return wrap_scsi (h, cmd, sizeof (g_excmd), DIR_OUT, + (unsigned char *) buf, len); } -int dpf_setproperty(DPFContext *h, int token, const DPFValue *value) +int +dpf_setproperty (DPFContext * h, int token, const DPFValue * value) { - unsigned char *cmd = g_excmd; - - if (h->mode == MODE_USBHID) return DEVERR_UNSUPP; - - cmd[6] = USBCMD_SETPROPERTY; - cmd[7] = token; - cmd[8] = token >> 8; - - switch (value->type) { - case TYPE_INTEGER: - cmd[9] = value->value.integer; - cmd[10] = value->value.integer >> 8; - break; - default: - break; - } - - return wrap_scsi(h, cmd, sizeof(g_excmd), DIR_OUT, NULL, 0); + unsigned char *cmd = g_excmd; + + if (h->mode == MODE_USBHID) + return DEVERR_UNSUPP; + + cmd[6] = USBCMD_SETPROPERTY; + cmd[7] = token; + cmd[8] = token >> 8; + + switch (value->type) + { + case TYPE_INTEGER: + cmd[9] = value->value.integer; + cmd[10] = value->value.integer >> 8; + break; + default: + break; + } + + return wrap_scsi (h, cmd, sizeof (g_excmd), DIR_OUT, NULL, 0); } - - |