#include "z180-serv.h"
#include "timer.h"
+
+#define DEBUG_CPM_SDIO 0 /* set to 1 to debug */
+
+#define debug_cpmsd(fmt, args...) \
+ debug_cond(DEBUG_CPM_SDIO, fmt, ##args)
+
+
+
/*--------------------------------------------------------------------------*/
uint8_t drv;
uint8_t device;
char *img_name;
+ bool dirty;
FIL fd;
};
static uint8_t disk_buffer[BLOCK_SIZE];
static struct cpm_drive_s drv_table[MAX_DRIVE];
+static int handle_cpm_drv_to;
+
+#define f_dirty(fp) ((fp)->fs->wflag != 0)
+
+
+int cpm_drv_to(int state)
+{
+ static uint32_t ts;
+
+ switch(state) {
+ case 0:
+ break;
+
+ case 1:
+ ts = get_timer(0);
+ state = 2;
+ break;
+
+ case 2:
+ if (get_timer(ts) > 1000) {
+ for (uint_fast8_t i=0; i < MAX_DRIVE; i++) {
+// if (&drv_table[i].fd && f_dirty(&drv_table[i].fd)) {
+ if (drv_table[i].dirty) {
+ f_sync(&drv_table[i].fd);
+ drv_table[i].dirty = false;
+ debug_cpmsd("## %7lu f_sync: %c:\n", get_timer(0), i+'A');
+ }
+ }
+ state = 0;
+ }
+ }
+ return state;
+}
+
+
+void msg_cpm_result(uint8_t subf, uint8_t rc, int res)
+{
+ uint8_t result_msg[3];
+
+ if (res)
+ rc |= 0x80;
+
+ result_msg[0] = rc;
+ result_msg[1] = res;
+ result_msg[2] = res >> 8;
+
+ if (rc) {
+ debug_cpmsd("###%7lu error rc: %.02x, res: %d\n", get_timer(0), rc, res);
+ }
+
+ msg_xmit(2, subf, sizeof(result_msg), result_msg);
+}
/*
db 2 ; disk command
{
FRESULT res = 0;
- uint8_t rc = 0;
uint8_t drv;
char *np;
- uint8_t result_msg[3];
(void)subf;
if (len != 5) { /* TODO: check adrv, rdrv */
- rc = 0x01;
- goto out;
+ return msg_cpm_result(subf, 0x01, res);
}
- debug("\n## %7lu login: %c:\n", get_timer(0), msg[0]+'A');
+ debug_cpmsd("\n## %7lu login: %c:\n", get_timer(0), msg[0]+'A');
drv = msg[0];
if ( drv>= MAX_DRIVE) {
- rc = 0x02;
- goto out;
+ return msg_cpm_result(subf, 0x02, res);
}
/*
*/
if (drv_table[drv].img_name != NULL) {
- debug("## %7lu close: '%s'\n", get_timer(0), drv_table[drv].img_name);
+ 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;
}
disk_buffer[3] = msg[0] + '0';
if (((np = getenv((char*)disk_buffer)) == NULL) ||
((drv_table[drv].img_name = strdup(np)) == NULL)) {
- rc = 0x03;
- goto out;
+ return msg_cpm_result(subf, 0x03, res);
}
res = f_open(&drv_table[drv].fd, drv_table[drv].img_name,
FA_WRITE | FA_READ);
- debug("## %7lu open: '%s', (env: '%s'), res: %d\n", get_timer(0),
+ debug_cpmsd("## %7lu open: '%s', (env: '%s'), res: %d\n", get_timer(0),
drv_table[drv].img_name, disk_buffer, res);
-out:
-
- if (res)
- rc |= 0x80;
-
- result_msg[0] = rc;
- result_msg[1] = res;
- result_msg[2] = res >> 8;
-
- if (rc) {
- debug("## %7lu error rc: %.02x, res: %d\n", get_timer(0), rc, res);
- };
-
/* send result*/
- msg_xmit(2, subf, sizeof(result_msg), result_msg);
+ msg_cpm_result(subf, 0x00, res);
}
uint8_t drv;
uint32_t addr;
uint32_t pos;
- unsigned int bytes;
+ uint8_t secs;
bool dowrite = (subf == 2);
- bool hightpa = false;
FRESULT res = 0;
uint8_t rc = 0;
bool buserr = 0;
- uint8_t result_msg[3];
if (len != 10) { /* TODO: check adrv, rdrv */
- rc = 0x01;
- goto out;
+ return msg_cpm_result(subf, 0x01, res);
}
drv = msg[ADRV];
if ( drv>= MAX_DRIVE) {
- rc = 0x02;
- goto out;
+ return msg_cpm_result(subf, 0x02, res);
}
- bytes = msg[CNT] * BLOCK_SIZE;
+ secs = msg[CNT];
addr = ((uint32_t)msg[ADDR+2] << 16) + ((uint16_t)msg[ADDR+1] << 8) + msg[ADDR];
pos = (((uint16_t)(msg[TRK+1] << 8) + msg[TRK]) * 8
+ ((uint32_t)(msg[SEC+1] << 8) + msg[SEC])) * BLOCK_SIZE;
- debug("## %7lu cpm_rw: %s %c: trk: %4d, sec: %d, pos: 0x%.8lx, secs: %2d\n",
- get_timer(0), dowrite ? "write" : " read", msg[ADRV]+'A',
- ((uint16_t)(msg[TRK+1] << 8) + msg[TRK]), msg[SEC], pos, msg[CNT]);
-
-
-
- /* TODO: check bank boundary crossing */
+ 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[ADRV]+'A', ((uint16_t)(msg[TRK+1] << 8) + msg[TRK]), msg[SEC],
+ pos, msg[CNT], addr);
res = f_lseek(&drv_table[drv].fd, pos);
- while (!res && bytes) {
+ while (!res && secs--) {
unsigned int cnt, br;
- if (bytes >= BLOCK_SIZE)
- cnt = BLOCK_SIZE;
- else
- cnt = bytes;
-
+ /* check bank boundary crossing */
+ cnt = 0;
if (addr < (TPA_BASE + COMMON_BASE) &&
- (addr + cnt) > (TPA_BASE + COMMON_BASE)) {
+ (addr + BLOCK_SIZE) > (TPA_BASE + COMMON_BASE)) {
cnt = (TPA_BASE + COMMON_BASE) - addr;
- hightpa = true;
}
- bytes -= cnt;
-
- debug("## %7lu "
- " addr: 0x%.5lx, cnt: %3d\n",
- get_timer(0), addr, cnt);
+ if (cnt) {
+ debug_cpmsd("## %67c addr: %.5lx, cnt: %3d\n", ' ', addr, cnt);
+ debug_cpmsd("## %67c addr: %.5lx, cnt: %3d\n", ' ', addr+cnt-TPA_BASE, BLOCK_SIZE-cnt);
+ }
if (dowrite) {
if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
buserr = 1;
+ break;
} else {
- z80_read_block(disk_buffer, addr, cnt);
+ if (cnt) {
+ z80_read_block(disk_buffer, addr, cnt);
+ addr = addr + cnt - TPA_BASE;
+ }
+ z80_read_block(disk_buffer+cnt, addr, BLOCK_SIZE - cnt);
z80_bus_cmd(Release);
- res = f_write(&drv_table[drv].fd, disk_buffer, cnt, &br);
}
+ res = f_write(&drv_table[drv].fd, disk_buffer, BLOCK_SIZE, &br);
} else {
- res = f_read(&drv_table[drv].fd, disk_buffer, cnt, &br);
- if (res == FR_OK) {
+ res = f_read(&drv_table[drv].fd, disk_buffer, BLOCK_SIZE, &br);
+ if (res == FR_OK && br == BLOCK_SIZE) {
if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
buserr = 1;
+ break;
} else {
- z80_write_block(disk_buffer, addr, br);
+ if (cnt) {
+ z80_write_block(disk_buffer, addr, cnt);
+ addr = addr + cnt - TPA_BASE;
+ }
+ z80_write_block(disk_buffer+cnt, addr, BLOCK_SIZE - cnt);
z80_bus_cmd(Release);
}
}
}
- addr += br;
- if (hightpa) {
- addr -= TPA_BASE;
- hightpa = false;
- }
-
- if (br != cnt) {
- debug("## %7lu f_read res: %d, bytes rd/wr: %u\n", get_timer(0), res, br);
+ if (br != BLOCK_SIZE) {
+ debug_cpmsd("## %7lu f_read res: %d, bytes rd/wr: %u\n", get_timer(0), res, br);
dump_ram(disk_buffer, 0, 64, "Read Data");
res = -1;
}
+ addr += BLOCK_SIZE;
}
- if (dowrite && !res)
- res = f_sync(&drv_table[drv].fd);
-
-out:
- if (buserr) {
- debug("Bus timeout\n");
- rc = 0x03;
+ if (dowrite && !res) {
+// res = f_sync(&drv_table[drv].fd);
+ drv_table[drv].dirty = true;
+ bg_setstat(handle_cpm_drv_to, 1);
}
- if (res)
- rc |= 0x80;
- result_msg[0] = rc;
- result_msg[1] = res;
- result_msg[2] = res >> 8;
- if (rc) {
- debug("###%7lu error rc: %.02x, res: %d\n", get_timer(0), rc, res);
+ if (buserr) {
+ debug_cpmsd("Bus timeout\n");
+ rc = 0x03;
}
/* send result*/
- msg_xmit(2, subf, sizeof(result_msg), result_msg);
+ msg_cpm_result(subf, rc, res);
}
{
handle_msg_handling = bg_register(msg_handling, 0);
+ handle_cpm_drv_to = bg_register(cpm_drv_to, 0);
}
void restart_z180_serv(void)