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-rw-r--r--oncology/dpfhack_display/dpflib/dpflib.c707
1 files changed, 707 insertions, 0 deletions
diff --git a/oncology/dpfhack_display/dpflib/dpflib.c b/oncology/dpfhack_display/dpflib/dpflib.c
new file mode 100644
index 00000000..e248eb09
--- /dev/null
+++ b/oncology/dpfhack_display/dpflib/dpflib.c
@@ -0,0 +1,707 @@
+/** DPF access library for AX206 based HW
+ *
+ * 12/2010 <hackfin@section5.ch>
+ *
+ * This is an ugly hack, because we use existing SCSI vendor specific
+ * extensions to pass on our requests to the DPF.
+ *
+ * One day we might use a proper protocol like netpp.
+ *
+ */
+
+// FIXME: Put all those SCSI commands in one (wrapped) place.
+
+#include "dpf.h"
+#include "sglib.h"
+
+#include "flash.h"
+#include <fcntl.h>
+#include "usbuser.h" // our user defined flash commands
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <scsi/scsi.h>
+#include <scsi/sg.h>
+#include <sys/ioctl.h>
+
+#ifdef DEBUG
+#define DEB(x) x
+#else
+#define DEB(x)
+#endif
+
+/** 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
+};
+
+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 wrap_scsi(DPFContext *h, unsigned char *cmd, int cmdlen, char out,
+ unsigned char *data, unsigned long block_len)
+{
+ int error;
+ if (h->mode == MODE_USB) {
+ error = emulate_scsi(h->dev.udev, cmd, cmdlen, out, data, block_len);
+ } else {
+ error = do_scsi(h->dev.fd, cmd, cmdlen, out, data, block_len);
+ }
+ return error;
+}
+
+/* device wrapper */
+
+const char idstring[] = "buildwin Photo Frame 1.01";
+
+#define INQ_REPLY_LEN 96
+
+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;
+}
+
+static
+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;
+}
+
+/*
+static
+int dpf_query(DPFHANDLE h)
+{
+ int ret;
+ unsigned char buf[64]; // Do not change size
+
+ static
+ unsigned char cmd[16] = {
+ 0xcd, 0, 0, 0,
+ 0, 3, 0, 0,
+ 0, 0, 0, 0,
+ 0, 0, 0, 0
+ };
+
+ return wrap_scsi(h, cmd, sizeof(cmd), DIR_IN, buf, sizeof(buf));
+}
+*/
+
+
+
+int dpf_open(const char *dev, DPFHANDLE *h)
+{
+ int error = 0;
+ DPFContext *dpf;
+ int i;
+ usb_dev_handle *u;
+
+ int fd;
+
+ if (!dev) {
+ fprintf(stderr, "Please specify a string like 'usb0' or a sg device\n");
+ return DEVERR_OPEN;
+ }
+
+ if (strncmp(dev, "usb", 3) == 0) {
+ i = dev[3] - '0';
+ u = dpf_usb_open(i);
+ if (!u) return DEVERR_OPEN;
+ i = MODE_USB;
+ } else {
+ fprintf(stderr, "Opening generic SCSI device '%s'\n", dev);
+ if (sgdev_open(dev, &fd) < 0) return DEVERR_OPEN;
+ i = MODE_SG;
+ }
+
+ dpf = (DPFHANDLE) malloc(sizeof(DPFContext));
+ if (!dpf) return DEVERR_MALLOC;
+
+ dpf->flags = 0;
+ dpf->mode = i;
+
+ if (dpf->mode == MODE_USB) {
+ dpf->dev.udev = u;
+ error = probe(dpf);
+ fprintf(stderr, "Got LCD dimensions: %dx%d\n", dpf->width, dpf->height);
+ } else {
+ dpf->dev.fd = fd;
+ }
+
+ *h = dpf;
+ return error;
+}
+
+void dpf_close(DPFContext *h)
+{
+ switch (h->mode) {
+ case MODE_SG:
+ close(h->dev.fd);
+ break;
+ case MODE_USB:
+ usb_release_interface(h->dev.udev, 0);
+ usb_close(h->dev.udev);
+ break;
+ }
+ free(h);
+}
+
+const char *dev_errstr(int err)
+{
+ switch (err) {
+ case DEVERR_FILE: return "File I/O error";
+ case DEVERR_OPEN: return "File open error";
+ case DEVERR_HEX: return "Hex file error";
+ case DEVERR_CHK: return "Checksum error";
+ case DEVERR_IO: return "Common I/O error";
+ default: return "Unknown error";
+ }
+}
+
+/* Flash stuff */
+
+int flash_cmd(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);
+}
+
+
+int flash_read(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
+int flash_writechunk(DPFContext *h, const unsigned char *buf, ADDR offset, int len)
+{
+ 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
+ };
+
+ 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_OUT,
+ (unsigned char*) buf, len);
+}
+
+int flash_write(DPFContext *h, const unsigned char *buf, ADDR offset, int len)
+{
+ int i;
+ int error = 0;
+
+ for (i = 0; i < len; i += 0x1000) {
+ error = flash_cmd(h, SPM_WREN, 1, 0);
+ DEB(printf("Write pages at %06x\n", offset));
+ error = flash_writechunk(h, buf, offset, 0x1000);
+ if (error < 0) break;
+ buf += 0x1000; offset += 0x1000;
+ }
+ return error;
+}
+
+
+int load_ihx(const char *fname, unsigned char *data,
+ unsigned int *buflen, unsigned int reloc)
+{
+ unsigned char csum_is, csum_need;
+ int ret;
+ FILE *f;
+
+ static char line[512];
+ static unsigned char buf[0x100];
+ int count;
+ unsigned int addr, len, type;
+ unsigned short b;
+ unsigned int total = 0;
+
+ DEB(printf("Opening %s...\n", fname));
+ f = fopen(fname, "r");
+ if (f == NULL) {
+ return DEVERR_OPEN;
+ }
+
+ while(1) {
+ fgets(line, sizeof(line), f);
+
+ if (feof(f) || ferror(f)) break;
+
+ if ((line[0] != ':') || (strlen(line) < 9)) {
+ fprintf(stderr, "invalid line in ihx\n");
+ break;
+ }
+
+ ret = sscanf(&line[1], "%02x", &len);
+ if (ret != 1) { ret = DEVERR_HEX; break; }
+
+ ret = sscanf(&line[3], "%04x", &addr);
+ if (ret != 1) { ret = DEVERR_HEX; break; }
+
+ ret = sscanf(&line[7], "%02x", &type);
+ if (ret != 1) { ret = DEVERR_HEX; break; }
+
+#ifdef DEBUG
+ printf("len %u addr %04x type %u\n", len, addr, type);
+#endif
+
+ if (type == 1) break;
+
+ if (type != 0) {
+ fprintf(stderr, "ihx: unknown type %u\n", type);
+ continue;
+ }
+
+ csum_need = len + (addr & 0xff) + (addr >> 8) + type;
+
+ total += len;
+ if (total > *buflen) {
+ fprintf(stderr, "Buffer length exceeded. IHX file too big.\n");
+ ret = DEVERR_HEX;
+ break;
+ }
+
+ if (len > sizeof(buf)) {
+ fprintf(stderr, "Buffer length exceeded. Too long lines.\n");
+ ret = DEVERR_HEX;
+ break;
+ }
+
+ for(count = 0; count < len; count++) {
+ ret = sscanf(&line[9 + count * 2], "%02hx", &b);
+ if (ret != 1) {
+ fprintf(stderr, "hex file: could not parse data!\n");
+ break;
+ }
+
+ buf[count] = b;
+ csum_need += buf[count];
+ }
+
+ if (ret != 1) { ret = DEVERR_HEX; break; }
+
+ ret = sscanf(&line[9 + len * 2], "%02hx", &b);
+ if (ret != 1) { ret = DEVERR_HEX; break; }
+
+ csum_is = b;
+ if (((csum_need+csum_is) & 0xff) != 0x00) {
+ fprintf(stderr, "ihx: checksum failure! is: %02x should be:%02x\n",
+ csum_is, csum_need);
+ ret = DEVERR_CHK;
+ break;
+ }
+
+ if (addr < reloc) {
+ fprintf(stderr, "Bad relocation value\n");
+ ret = DEVERR_HEX;
+ break;
+ }
+ // Copy to data buffer at relocated address
+ if (data) {
+ DEB(printf("Patching at offset %08x, chunk size %d\n",
+ addr - reloc, len));
+ memcpy(&data[addr - reloc], buf, len);
+ } else {
+ DEB(printf("Writing to %04x (CODE: %04x), chunk size %d\n",
+ addr - reloc, addr, len));
+ dpf_copy(addr - reloc, buf, len);
+ }
+ }
+ *buflen = total;
+ fclose(f);
+ return ret;
+}
+
+
+int flash_probe(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 flash_erase(DPFContext *h, ADDR addr)
+{
+ int error;
+ error = flash_cmd(h, SPM_RES, 1, 0);
+ error = flash_cmd(h, SPM_WREN, 1, 0);
+ error = flash_cmd(h, SPM_WRSR, 2, 0); // clr status
+
+ // now erase flash sector:
+ error = flash_cmd(h, SPM_WREN, 1, 0);
+ error = flash_cmd(h, SPM_FLASH_SE, 4, addr);
+ return error;
+}
+
+void dpf_flash_lock(DPFContext *h, char enable)
+{
+ unsigned char *cmd = g_excmd;
+
+ if (!(h->flags & FLAG_CAN_LOCK)) return;
+
+ 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);
+}
+
+
+int patch_sector(DPFContext *h,
+ ADDR reloc, unsigned long addr, const char *hexfile)
+{
+ int error;
+ unsigned short offset;
+ static
+ unsigned char readbuf[0x10000];
+ unsigned int len = sizeof(readbuf);
+
+ offset = addr & 0xffff;
+ addr -= offset;
+
+ error = flash_read(h, readbuf, addr, 0x10000);
+ if (error < 0) {
+ perror("Reading flash");
+ return error;
+ }
+
+ error = load_ihx(hexfile, &readbuf[offset], &len, reloc);
+ if (error < 0) {
+ fprintf(stderr, "Failed to load HEX file\n");
+ return error;
+ }
+ // Lock DPF handler so nothing can interfere with the flashing (in case
+ // we flash ourselves)
+ dpf_flash_lock(h, 1);
+ error = flash_cmd(h, SPM_WREN, 1, 0);
+ error = flash_cmd(h, SPM_WRSR, 2, 0); // clr status
+
+ error = flash_erase(h, addr);
+ if (error < 0) return error;
+
+ error = flash_write(h, readbuf, addr, 0x10000); // clr status
+ dpf_flash_lock(h, 0);
+
+ return error;
+}
+
+////////////////////////////////////////////////////////////////////////////
+// High level functions, generic
+// These require a hacked command handler with extended command set.
+
+
+static DPFHANDLE g_dpf;
+
+int write_mem(DPFContext *h, const char *hexfile)
+{
+ unsigned int len = 0xc000;
+ int error;
+
+ g_dpf = h;
+ error = load_ihx(hexfile, 0, &len, 0x800);
+ return error;
+}
+
+int read_blk(DPFContext *h, unsigned char *buf, ADDR offset, int len)
+{
+ unsigned char *cmd = g_excmd;
+
+ 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);
+}
+
+#define CHUNK_SIZE 1024
+
+int read_mem(DPFContext *h, unsigned char *buf, ADDR offset, int len)
+{
+ int error = 0;
+ while (len > CHUNK_SIZE && error >= 0) {
+ error = read_blk(h, buf, offset, CHUNK_SIZE);
+ offset += CHUNK_SIZE; len -= CHUNK_SIZE; buf += CHUNK_SIZE;
+ }
+ error = read_blk(h, buf, offset, len);
+
+ return error;
+}
+
+
+int code_go(DPFContext *h, ADDR start)
+{
+ unsigned char *cmd = g_excmd;
+ printf("Executing applet..\n");
+ cmd[6] = 0x02; // execute
+ cmd[7] = start;
+ cmd[8] = start >> 8;
+
+ return wrap_scsi(h, cmd, sizeof(g_excmd), DIR_IN, 0, 0);
+}
+
+
+
+////////////////////////////////////////////////////////////////////////////
+// High level functions, DPF specific
+
+/* Bootstrap mode: Expects contiguous memory block to download, then jumps
+ * into start address
+ */
+int dpf_bootstrap(DPFContext *h,
+ ADDR dest, unsigned char *src, unsigned short n, ADDR start)
+{
+ 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;
+
+ return wrap_scsi(h, cmd, sizeof(g_excmd), DIR_OUT, src, n);
+}
+
+int dpf_copy(ADDR dst, unsigned char *src, unsigned short n)
+{
+ unsigned char *cmd = g_excmd;
+
+ cmd[6] = 0x01; // memory_write
+ cmd[7] = dst;
+ cmd[8] = dst >> 8;
+ cmd[9] = n;
+ cmd[10] = n >> 8;
+
+ return wrap_scsi(g_dpf, cmd, sizeof(g_excmd), DIR_OUT, src, n);
+}
+
+/* Currently unused.
+int clr_screen(DPFContext *h, const unsigned char *col)
+{
+ unsigned char *cmd = g_excmd;
+
+ cmd[6] = USBCMD_PROBE;
+ cmd[7] = col[0];
+ cmd[8] = col[1];
+
+ return wrap_scsi(h, cmd, sizeof(g_excmd), DIR_IN, 0, 0);
+}
+*/
+
+/* This function is deprecated and may not be implemented on newer hacks
+ */
+int write_screen(DPFContext *h, const unsigned char *buf, unsigned int len)
+{
+ unsigned char *cmd = g_excmd;
+ unsigned int l;
+ unsigned char factor;
+
+ if (len > 0xffff) {
+ factor = 2; l = len >> 1;
+ } else {
+ factor = 1; l = len;
+ }
+
+ cmd[6] = USBCMD_WRITEFB;
+ cmd[7] = factor;
+ cmd[8] = 0;
+ cmd[9] = l;
+ cmd[10] = l >> 8;
+
+ return wrap_scsi(h, cmd, sizeof(g_excmd), DIR_OUT,
+ (unsigned char*) buf, len);
+}
+
+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;
+
+ 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);
+}
+
+void dpf_writefb(DPFContext *h, unsigned char *buffer)
+{
+ int len;
+
+ len = h->width * h->height * h->bpp;
+ write_screen(h, buffer, len);
+}
+
+int dpf_setproperty(DPFContext *h, int token, const DPFValue *value)
+{
+ unsigned char *cmd = g_excmd;
+
+ 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);
+}
+
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