static inline void
uart_report_port(struct uart_driver *drv, struct uart_port *port)
{
char address[64];
switch (port->iotype) {
case UPIO_PORT:
snprintf(address, sizeof(address), "I/O 0x%lx", port->iobase);
break;
case UPIO_HUB6:
snprintf(address, sizeof(address),
"I/O 0x%lx offset 0x%x", port->iobase, port->hub6);
break;
case UPIO_MEM:
case UPIO_MEM32:
case UPIO_AU:
case UPIO_TSI:
snprintf(address, sizeof(address),
"MMIO 0x%llx", (unsigned long long)port->mapbase);
break;
default:
strlcpy(address, "*unknown*", sizeof(address));
break;
}
printk(KERN_INFO "%s%s%s%d at %s (irq = %d) is a %s\n",
port->dev ? dev_name(port->dev) : "",
port->dev ? ": " : "",
drv->dev_name,
drv->tty_driver->name_base + port->line,
address, port->irq, uart_type(port));
}
main()
{int i;
char * UARTname [] = {
"8250 without FIFO",
"16450 without FIFO",
"16550 with FIFO",
"16550A with FIFO"};
clrscr();
puts("Port Base addr UART type");
printf( "COM1 ");if((i=uart_type(0))!=-1)printf(UARTname[i-1]);else printf("Not found");
printf("\nCOM2 ");if((i=uart_type(1))!=-1)printf(UARTname[i-1]);else printf("Not found");
printf("\nCOM3 ");if((i=uart_type(2))!=-1)printf(UARTname[i-1]);else printf("Not found");
printf("\nCOM4 ");if((i=uart_type(3))!=-1)printf(UARTname[i-1]);else printf("Not found");
puts("");
}
static void serial_get(const char *device, enum print_mode mode)
{
int fd, ret;
const char *uart, *prefix, *postfix;
struct serial_struct serinfo;
fd = serial_open(device, /*quiet:*/ mode == PRINT_SUMMARY);
if (fd < 0)
return;
ret = serial_ctl(fd, CTL_GET | CTL_CLOSE | CTL_NODIE, &serinfo);
if (ret < 0)
return;
uart = uart_type(serinfo.type);
prefix = ", Flags: ";
postfix = "";
switch (mode) {
case PRINT_NORMAL:
printf("%s, UART: %s, Port: 0x%.4x, IRQ: %d",
device, uart, serinfo.port, serinfo.irq);
break;
case PRINT_SUMMARY:
if (!serinfo.type)
return;
printf("%s at 0x%.4x (irq = %d) is a %s",
device, serinfo.port, serinfo.irq, uart);
prefix = " (";
postfix = ")";
break;
case PRINT_FEDBACK:
printf("%s uart %s port 0x%.4x irq %d baud_base %d", device,
uart, serinfo.port, serinfo.irq, serinfo.baud_base);
prefix = " ";
break;
case PRINT_ALL:
printf("%s, Line %d, UART: %s, Port: 0x%.4x, IRQ: %d\n",
device, serinfo.line, uart, serinfo.port, serinfo.irq);
printf("\tBaud_base: %d, close_delay: %u, divisor: %d\n",
serinfo.baud_base, serinfo.close_delay,
serinfo.custom_divisor);
printf("\tclosing_wait: ");
print_closing_wait(serinfo.closing_wait);
prefix = "\tFlags: ";
postfix = "\n";
break;
default:
assert(0);
}
print_serial_flags(serinfo.flags, mode, prefix, postfix);
}
static void uart_line_info(struct seq_file *m, struct uart_driver *drv, int i)
{
struct uart_state *state = drv->state + i;
struct tty_port *port = &state->port;
int pm_state;
struct uart_port *uport = state->uart_port;
char stat_buf[32];
unsigned int status;
int mmio;
if (!uport)
return;
mmio = uport->iotype >= UPIO_MEM;
seq_printf(m, "%d: uart:%s %s%08llX irq:%d",
uport->line, uart_type(uport),
mmio ? "mmio:0x" : "port:",
mmio ? (unsigned long long)uport->mapbase
: (unsigned long long)uport->iobase,
uport->irq);
if (uport->type == PORT_UNKNOWN) {
seq_putc(m, '\n');
return;
}
if (capable(CAP_SYS_ADMIN)) {
mutex_lock(&port->mutex);
pm_state = state->pm_state;
if (pm_state)
uart_change_pm(state, 0);
spin_lock_irq(&uport->lock);
status = uport->ops->get_mctrl(uport);
spin_unlock_irq(&uport->lock);
if (pm_state)
uart_change_pm(state, pm_state);
mutex_unlock(&port->mutex);
seq_printf(m, " tx:%d rx:%d",
uport->icount.tx, uport->icount.rx);
if (uport->icount.frame)
seq_printf(m, " fe:%d",
uport->icount.frame);
if (uport->icount.parity)
seq_printf(m, " pe:%d",
uport->icount.parity);
if (uport->icount.brk)
seq_printf(m, " brk:%d",
uport->icount.brk);
if (uport->icount.overrun)
seq_printf(m, " oe:%d",
uport->icount.overrun);
#define INFOBIT(bit, str) \
if (uport->mctrl & (bit)) \
strncat(stat_buf, (str), sizeof(stat_buf) - \
strlen(stat_buf) - 2)
#define STATBIT(bit, str) \
if (status & (bit)) \
strncat(stat_buf, (str), sizeof(stat_buf) - \
strlen(stat_buf) - 2)
stat_buf[0] = '\0';
stat_buf[1] = '\0';
INFOBIT(TIOCM_RTS, "|RTS");
STATBIT(TIOCM_CTS, "|CTS");
INFOBIT(TIOCM_DTR, "|DTR");
STATBIT(TIOCM_DSR, "|DSR");
STATBIT(TIOCM_CAR, "|CD");
STATBIT(TIOCM_RNG, "|RI");
if (stat_buf[0])
stat_buf[0] = ' ';
seq_puts(m, stat_buf);
}
seq_putc(m, '\n');
#undef STATBIT
#undef INFOBIT
}
