static void do_charset(void) {
// set the communication charset to PETSCII
strcpy(outbuf, cconv_charsetname(current_charset));
// prepare FS_CHARSET packet
packet_set_filled(&outpack, FSFD_CMD, FS_CHARSET, strlen(outbuf)+1);
// send the FS_CHARSET packet
endpoint->provider->submit_call(endpoint->provdata, FSFD_CMD, &outpack, &outpack, out_callback);
// must not wait, as we may be in callback from FS_RESET (from server),
// so serial_lock is set
}
void rtconfig_pullconfig(int argc, const char *argv[]) {
for (int i = 0; i < argc; i++) {
if (argv[i][0] == '-' && argv[i][1] == 'X') {
do_setopt((char*)argv[i]+2, strlen(argv[i]+2));
}
}
// prepare FS_RESET packet
packet_set_filled(&buspack, FSFD_SETOPT, FS_RESET, 0);
// send request, receive in same buffer we sent from
endpoint->provider->submit_call(endpoint->provdata, FSFD_SETOPT, &buspack, &buspack, setopt_callback);
debug_printf("sent reset packet on fd %d, charset=%d\n", FSFD_SETOPT, current_charset);
// send charset command
do_charset();
}
uint8_t file_submit_call(uint8_t channel_no, uint8_t type, uint8_t *cmd_buffer,
errormsg_t *errormsg, rtconfig_t *rtconf,
void (*callback)(int8_t errnum, uint8_t *rxdata), uint8_t iscmd) {
assert_not_null(errormsg, "file_submit_call: errormsg is null");
assert_not_null(rtconf, "file_submit_call: rtconf is null");
// check for default drive (here is the place to set the last used one)
if (nameinfo.drive == NAMEINFO_LAST_DRIVE) {
nameinfo.drive = rtconf->last_used_drive;
}
else if (nameinfo.drive == NAMEINFO_UNUSED_DRIVE) {
// TODO: match CBM behavior
nameinfo.drive = rtconf->last_used_drive;
}
else if (nameinfo.drive < MAX_DRIVES) {
// only save real drive numbers as last used default
rtconf->last_used_drive = nameinfo.drive;
}
// if second name does not have a drive, use drive from first,
// but only if it is defined
if (nameinfo.file[0].drive == NAMEINFO_UNUSED_DRIVE && nameinfo.drive != NAMEINFO_UNDEF_DRIVE) {
nameinfo.file[0].drive = nameinfo.drive;
}
// here is the place to plug in other file system providers,
// like SD-Card, or even an outgoing IEC or IEEE, to convert between
// the two bus systems. This is done depending on the drive number
// and managed with the ASSIGN call.
//provider_t *provider = &serial_provider;
endpoint_t *endpoint = NULL;
if (type == FS_OPEN_DIRECT) {
debug_printf("Getting direct endpoint provider for channel %d\n", channel_no);
endpoint = direct_provider();
} else {
endpoint = provider_lookup(nameinfo.drive, (char*) nameinfo.drivename);
}
// convert from bus' PETSCII to provider
// currently only up to the first zero byte is converted, options like file type
// are still ASCII only
// in the future the bus may have an own conversion option...
cconv_converter(CHARSET_PETSCII, endpoint->provider->charset(endpoint->provdata))
((char*)nameinfo.name, strlen((char*)nameinfo.name),
(char*)nameinfo.name, strlen((char*)nameinfo.name));
for (uint8_t i=0 ; i < nameinfo.num_files ; ++i) {
if (nameinfo.file[i].name != NULL) {
cconv_converter(CHARSET_PETSCII, endpoint->provider->charset(endpoint->provdata))
((char*)nameinfo.file[i].name, strlen((char*)nameinfo.file[i].name),
(char*)nameinfo.file[i].name, strlen((char*)nameinfo.file[i].name));
}
}
if (type == FS_MOVE
&& nameinfo.file[0].drive != NAMEINFO_UNUSED_DRIVE // then use ep from first drive anyway
&& nameinfo.file[0].drive != nameinfo.drive) { // no need to check if the same
// two-name command(s) with possibly different drive numbers
endpoint_t *endpoint2 = provider_lookup(nameinfo.file[0].drive, (char*) nameinfo.file[0].name);
if (endpoint2 != endpoint) {
debug_printf("ILLEGAL DRIVE COMBINATION: %d vs. %d\n", nameinfo.drive+0x30, nameinfo.file[0].drive+0x30);
set_error_tsd(errormsg, CBM_ERROR_DRIVE_NOT_READY, 0, 0, nameinfo.drive);
return -1;
}
}
// check the validity of the drive (note that in general provider_lookup
// returns a default provider - serial-over-USB to the PC, which then
// may do further checks
if (endpoint == NULL) {
debug_puts("ILLEGAL DRIVE: ");
debug_putc(0x30+nameinfo.drive);
debug_putcrlf();
set_error_tsd(errormsg, CBM_ERROR_DRIVE_NOT_READY, 0, 0, nameinfo.drive);
return -1;
}
provider_t *provider = endpoint->provider;
// find open slot
//int8_t slot = -1;
open_t *activeslot = NULL;
for (uint8_t i = 0; i < MAX_ACTIVE_OPEN; i++) {
if (active[i].channel_no < 0) {
//slot = i;
activeslot = (open_t*) &active[i];
break;
}
}
//if (slot < 0) {
if (activeslot == NULL) {
debug_puts("NO OPEN SLOT FOR OPEN!");
debug_putcrlf();
set_error_tsd(errormsg, CBM_ERROR_NO_CHANNEL, 0, 0, nameinfo.drive);
return -1;
}
activeslot->endpoint = endpoint;
uint8_t len = assemble_filename_packet(cmd_buffer, &nameinfo);
#ifdef DEBUG_FILE
debug_printf("LEN AFTER ASSEMBLE=%d\n", len);
#endif
packet_init(&activeslot->txbuf, len, cmd_buffer);
// store pointer to runtime config in packet
// used by providers running on the device
activeslot->txbuf.rtc = rtconf;
packet_set_filled(&activeslot->txbuf, channel_no, type, len);
if (!iscmd) {
// only for file opens
// note: we need the provider for the dir converter,
// so we can only do it in here.
// open channel
uint8_t writetype = WTYPE_READONLY;
if (type == FS_OPEN_WR || type == FS_OPEN_AP || type == FS_OPEN_OW) {
writetype = WTYPE_WRITEONLY;
} else if (type == FS_OPEN_RW) {
writetype = WTYPE_READWRITE;
}
if (nameinfo.options & NAMEOPT_NONBLOCKING) {
writetype |= WTYPE_NONBLOCKING;
}
int8_t (*converter)(void *, packet_t*, uint8_t) =
(type == FS_OPEN_DR) ? (provider->directory_converter) : NULL;
// TODO: if provider->channel_* are not NULL, we should probably not allocate a channel
// but that would break the FILE OPEN detection here.
channel_t *channel = channel_find(channel_no);
if (channel != NULL) {
// clean up
channel_close(channel_no);
// Note: it seems possible to open the same channel multiple times
// on a direct file
if (type != FS_OPEN_DIRECT) {
debug_puts("FILE OPEN ERROR");
debug_putcrlf();
set_error_tsd(errormsg, CBM_ERROR_NO_CHANNEL, 0, 0, nameinfo.drive);
return -1;
}
}
int8_t e = channel_open(channel_no, writetype, endpoint, converter, nameinfo.drive);
if (e < 0) {
debug_puts("E=");
debug_puthex(e);
debug_putcrlf();
set_error_tsd(errormsg, CBM_ERROR_NO_CHANNEL, 0, 0, nameinfo.drive);
return -1;
}
}
activeslot->callback = callback;
// no more error here, just the submit.
// so callers can be sure if this function returns <0, they do not need
// to close the channel, as it has not been opened
// If this function returns 0, a callback must be received and handled,
// and the channel is already opened.
activeslot->channel_no = channel_no;
// prepare response buffer
packet_init(&activeslot->rxbuf, OPEN_RX_DATA_LEN, activeslot->rxdata);
provider->submit_call(endpoint->provdata, channel_no, &activeslot->txbuf,
&activeslot->rxbuf, _file_open_callback);
return 0;
}
