#include "bcd.h"
#include "rtc.h"
-#define DEBUG_CPM_SDIO 1 /* set to 1 to debug */
+#define DEBUG_CPM_SDIO 0 /* set to 1 to debug */
#define debug_cpmsd(fmt, args...) \
debug_cond(DEBUG_CPM_SDIO, fmt, ##args)
/* ---------------------------------------------------------------------------*/
+static uint8_t drv;
static uint8_t disk_buffer[CONFIG_CPM_BLOCK_SIZE];
static struct cpm_drive_s drv_table[CONFIG_CPM_MAX_DRIVE];
static int handle_cpm_drv_to;
+typedef enum {SINGLE, START, MIDDLE, END} dbgmsg_t;
+
+void drv_debug(dbgmsg_t phase, const FLASH char *const fmt, ...) \
+{
+ struct cpm_drive_s *dp = &drv_table[drv];
+
+ if (dp->opt & DRV_OPT_DEBUG) {
+
+ va_list ap;
+ va_start (ap, fmt);
+
+ if (phase == SINGLE || phase == START)
+ printf_P(PSTR("# %7lu dsk%d: "), get_timer(0), drv);
+
+ vfprintf_P (stdout, fmt, ap);
+
+ if (phase == SINGLE || phase == END)
+ putc('\n', stdout);
+
+ va_end (ap);
+ }
+}
int drv_list(void)
{
return 0;
}
-int drv_detach(uint8_t drv)
+int drv_detach(uint8_t unit)
{
+ drv = unit;
if (drv < CONFIG_CPM_MAX_DRIVE) {
struct cpm_drive_s *p = &drv_table[drv];
- debug_cpmsd("## detach dsk%d: %s\n", drv,
- p->img_name ? p->img_name : "-");
+ drv_debug(SINGLE, PSTR("detach from '%s'"), p->img_name ? p->img_name : "-");
if (p->img_name) {
f_close(&p->fd);
- p->opt = 0;
- p->dirty = false;
free(p->img_name);
+ p->opt = 0;
+ p->flags &= ~DRV_FLG_DIRTY;
p->img_name = NULL;
+
+ uint32_t scb = getenv_ulong(PSTR(ENV_CPM3_SCB), 16, 0);
+ if (scb && (z80_bus_cmd(Request) & ZST_ACQUIRED)) {
+ z80_write(scb + 0xf0, 0xff);
+ z80_write(p->dph + 11, 0xff);
+ z80_bus_cmd(Release);
+ }
}
}
return 0;
return -1;
}
-int drv_attach(uint8_t drv, const char *filename, drv_opt_t options)
+int drv_attach(uint8_t unit, const char *filename, drv_opt_t options)
{
int res;
+ drv = unit;
if (drv >= CONFIG_CPM_MAX_DRIVE)
return AT_RANGE;
return AT_NOT;
}
- p->opt = options & ~DRV_OPT_REATTATCH;
+ /* change options */
+ if ((p->opt ^ options) & DRV_OPT_RO) {
+ f_close(&p->fd);
+ res = f_open(&p->fd, p->img_name,
+ FA_READ | (options&DRV_OPT_RO ? 0 : FA_WRITE));
+ }
- /* TODO: change options */
+ p->opt = options & ~DRV_OPT_REATTATCH;
} else {
if (drv_find_file_attached(filename) >= 0)
return AT_OTHER;
- p->opt = options & ~DRV_OPT_REATTATCH;
+ p->opt = options;
/* new attachment */
return AT_NOMEM;
res = f_open(&p->fd, p->img_name,
- FA_WRITE | FA_READ);
+ FA_READ | (options&DRV_OPT_RO ? 0 : FA_WRITE));
if (!res && f_size(&p->fd) < CONFIG_CPM_DISKSIZE) {
+#if 0
unsigned int bw;
-
debug_cpmsd(" expanding image file from %ld to %ld\n",
f_size(&p->fd), CONFIG_CPM_DISKSIZE);
if (res || bw < CONFIG_CPM_BLOCK_SIZE) {
debug_cpmsd(" failed! res: %d, bytes written: %u\n", res, bw);
}
- p->dirty = true;
+ p->flags |= DRV_FLG_DIRTY;
bg_setstat(handle_cpm_drv_to, 1);
}
+#else
+ drv_debug(SINGLE, PSTR("wrong image file size: %ld, should be %ld"),
+ f_size(&p->fd), CONFIG_CPM_DISKSIZE);
+ res = 64;
+#endif
}
if (res) {
drv_detach(drv);
case 2:
if (get_timer(ts) > 1000) {
for (uint_fast8_t i=0; i < CONFIG_CPM_MAX_DRIVE; i++) {
- if (drv_table[i].dirty) {
+ if (drv_table[i].flags & DRV_FLG_DIRTY) {
+ drv_table[i].flags &= ~DRV_FLG_DIRTY;
f_sync(&drv_table[i].fd);
- drv_table[i].dirty = false;
- debug_cpmsd("## %7lu f_sync: %c:\n", get_timer(0), i + CONFIG_CPM_BASE_DRIVE);
+ drv = i;
+ drv_debug(SINGLE, PSTR("f_sync"));
}
}
state = 0;
return state;
}
+static const FLASH char * const FLASH rc_messages[] = {
+ FSTR("OK"),
+ FSTR("Internal error: wrong message len"), /* 01 */
+ FSTR("Invalid relative drive #"), /* 02 */
+ FSTR("Bus timeout"), /* 03 */
+ FSTR("Access byond disk size"), /* 04 */
+ FSTR("Write protect"), /* 05 */
+ FSTR("No media"), /* 06 */
+ FSTR("R/W address == 0 !!!!"), /* 07 */
+ };
void msg_cpm_result(uint8_t subf, uint8_t rc, int res)
{
result_msg[1] = res;
result_msg[2] = res >> 8;
+ msg_xmit(2, subf, sizeof(result_msg), result_msg);
+
if (rc) {
- debug_cpmsd("###%7lu error rc: %.02x, res: %d\n", get_timer(0), rc, res);
- }
+#if GCC_BUG_61443
+ char msg[40];
+ strncpy_P(msg, rc_messages[rc & 0x7f], sizeof msg -1);
+ drv_debug(END, PSTR(" rc: %.02x/%d, '%s'"),
+ rc, res, msg);
+#else
+ drv_debug(END, PSTR(" rc: %.02x/%d, '%S'"),
+ rc, res, rc_messages[rc & 0x7f]);
+#endif
+ } else
+ drv_debug(END, PSTR(""));
- msg_xmit(2, subf, sizeof(result_msg), result_msg);
}
/*
void do_msg_cpm_login(uint8_t subf, int len, uint8_t * msg)
{
+ struct cpm_drive_s *dp;
FRESULT res = 0;
- uint8_t drv;
- char *np;
(void)subf;
+ /* Get relative drive number */
+ drv = msg[1];
+ drv_debug(START, PSTR("login"));
+
if (len != 5) {
return msg_cpm_result(subf, 0x01, res);
}
- debug_cpmsd("\n## %7lu login: %c:\n", get_timer(0), msg[1]+CONFIG_CPM_BASE_DRIVE);
-
- /* Get relative drive number */
- drv = msg[1];
if ( drv >= CONFIG_CPM_MAX_DRIVE) {
+ /* invalid relative drive number */
return msg_cpm_result(subf, 0x02, res);
}
+ dp = &drv_table[drv];
+ dp->flags &= ~DRV_FLG_OPEN;
+ dp->dph = ((uint32_t)msg[4] << 16) + ((uint16_t)msg[3] << 8) + msg[2];
- drv_table[drv].dph = ((uint32_t)msg[4] << 16) + ((uint16_t)msg[3] << 8) + msg[2];
-
-
- if (drv_table[drv].img_name != NULL) {
- debug_cpmsd("## %7lu close: '%s'\n", get_timer(0), drv_table[drv].img_name);
- f_close(&drv_table[drv].fd);
- drv_table[drv].dirty = false;
- free(drv_table[drv].img_name);
- drv_table[drv].img_name = NULL;
- }
-
- strcpy_P((char *)disk_buffer, PSTR("dsk0"));
- disk_buffer[3] = msg[0] + '0';
- if (((np = getenv_char((char*)disk_buffer)) == NULL) ||
- ((drv_table[drv].img_name = strdup(np)) == NULL)) {
- return msg_cpm_result(subf, 0x03, res);
+ if (dp->img_name == NULL) {
+ /* no file attached */
+ return msg_cpm_result(subf, 0x06, res);
}
+ f_close(&dp->fd);
+ res = f_open(&dp->fd, dp->img_name,
+ FA_READ | (dp->opt&DRV_OPT_RO ? 0 : FA_WRITE));
- res = f_open(&drv_table[drv].fd, drv_table[drv].img_name,
- FA_WRITE | FA_READ);
-
- debug_cpmsd("## %7lu open: '%s', (env: '%s'), res: %d\n", get_timer(0),
- drv_table[drv].img_name, disk_buffer, res);
-
- if (!res && f_size(&drv_table[drv].fd) < CONFIG_CPM_DISKSIZE) {
- unsigned int bw;
-
- debug_cpmsd(" expanding image file from %ld to %ld\n",
- f_size(&drv_table[drv].fd), CONFIG_CPM_DISKSIZE);
-
- res = f_lseek(&drv_table[drv].fd, CONFIG_CPM_DISKSIZE-CONFIG_CPM_BLOCK_SIZE);
- if (!res) {
- memset(disk_buffer, 0xe5, CONFIG_CPM_BLOCK_SIZE);
- res = f_write(&drv_table[drv].fd, disk_buffer, CONFIG_CPM_BLOCK_SIZE, &bw);
- if (res || bw < CONFIG_CPM_BLOCK_SIZE) {
- debug_cpmsd(" failed! res: %d, bytes written: %u\n", res, bw);
- }
- drv_table[drv].dirty = true;
- bg_setstat(handle_cpm_drv_to, 1);
- }
- }
+ dp->flags |= DRV_FLG_OPEN;
/* send result*/
msg_cpm_result(subf, 0x00, res);
void do_msg_cpm_rw(uint8_t subf, int len, uint8_t * msg)
{
- uint8_t drv;
+ struct cpm_drive_s *dp;
uint32_t addr;
uint32_t pos;
+ uint16_t track;
+ uint16_t sec;
uint8_t secs;
- bool dowrite = (subf == 2);
+ bool dowrite;
FRESULT res = 0;
uint8_t rc = 0;
bool buserr = 0;
+ drv = msg[RDRV];
+ dowrite = (subf == 2);
+
+ drv_debug(START, PSTR("%2S"), dowrite ? PSTR("W ") : PSTR(" R"));
+
if (len != 10) {
return msg_cpm_result(subf, 0x01, res);
}
-
- drv = msg[RDRV];
if ( drv>= CONFIG_CPM_MAX_DRIVE) {
return msg_cpm_result(subf, 0x02, res);
}
+ dp = &drv_table[drv];
+ track = (uint16_t)(msg[TRK+1] << 8) + msg[TRK];
+ sec = (uint16_t)(msg[SEC+1] << 8) + msg[SEC];
secs = msg[CNT];
addr = ((uint32_t)msg[ADDR+2] << 16) + ((uint16_t)msg[ADDR+1] << 8) + msg[ADDR];
+ if (dp->img_name == NULL) {
+ /* no media */
+ return msg_cpm_result(subf, 0x06, res);
+ }
/* TODO: tracks per sector from dpb */
- pos = (((uint16_t)(msg[TRK+1] << 8) + msg[TRK]) * 8
- + ((uint32_t)(msg[SEC+1] << 8) + msg[SEC])) * CONFIG_CPM_BLOCK_SIZE;
+ pos = (track * 8UL + sec) * CONFIG_CPM_BLOCK_SIZE;
+
+ drv_debug(MIDDLE, PSTR(" T:%4d, S:%2d, cnt:%2d, lba: %.8lx, addr: %.5lx"),
+ track, sec, secs, pos, addr);
+
+ if (addr == 0) {
+ return msg_cpm_result(subf, 0x07, res);
+ }
+
+ if (dowrite && dp->opt & DRV_OPT_RO) {
+ return msg_cpm_result(subf, 0x05, res);
+ }
- debug_cpmsd("## %7lu cpm_rw: %s %c: trk:%4d, sec: %d, pos: %.8lx, secs: %2d, "
- "addr: %.5lx\n", get_timer(0), dowrite ? "write" : " read",
- msg[RDRV]+CONFIG_CPM_BASE_DRIVE,
- ((uint16_t)(msg[TRK+1] << 8) + msg[TRK]), msg[SEC], pos, msg[CNT], addr);
if (pos + secs * CONFIG_CPM_BLOCK_SIZE > CONFIG_CPM_DISKSIZE) {
- debug_cpmsd(" access > DISKSIZE (%.8lx > %.8lx) aborted!\n",
- pos + secs * CONFIG_CPM_BLOCK_SIZE, CONFIG_CPM_DISKSIZE);
+ drv_debug(MIDDLE, PSTR(" access > DISKSIZE:%.8lx!"),
+ CONFIG_CPM_DISKSIZE);
return msg_cpm_result(subf, 0x04, res);
}
- res = f_lseek(&drv_table[drv].fd, pos);
+ res = f_lseek(&dp->fd, pos);
while (!res && secs--) {
unsigned int brw;
z80_read_block(disk_buffer, addr, CONFIG_CPM_BLOCK_SIZE);
z80_bus_cmd(Release);
}
- res = f_write(&drv_table[drv].fd, disk_buffer, CONFIG_CPM_BLOCK_SIZE, &brw);
+ res = f_write(&dp->fd, disk_buffer, CONFIG_CPM_BLOCK_SIZE, &brw);
} else {
- res = f_read(&drv_table[drv].fd, disk_buffer, CONFIG_CPM_BLOCK_SIZE, &brw);
+ res = f_read(&dp->fd, disk_buffer, CONFIG_CPM_BLOCK_SIZE, &brw);
if (res == FR_OK) {
if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
buserr = 1;
}
}
if (brw != CONFIG_CPM_BLOCK_SIZE) {
- debug_cpmsd(" short read or write: res: %d, bytes rd/wr: %u\n", res, brw);
+ drv_debug(MIDDLE, PSTR(" short rd/wr: res: %d, brw: %u"),
+ res, brw);
res = 64;
}
addr += CONFIG_CPM_BLOCK_SIZE;
}
if (dowrite && !res) {
- drv_table[drv].dirty = true;
+ dp->flags |= DRV_FLG_DIRTY;
bg_setstat(handle_cpm_drv_to, 1);
}
if (buserr) {
- debug_cpmsd("Bus timeout\n");
+ /* Bus timeout. how can this happen? */
rc = 0x03;
}
projects / z180-stamp.git / blobdiff