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-rw-r--r--memdump/serial.c106
1 files changed, 53 insertions, 53 deletions
diff --git a/memdump/serial.c b/memdump/serial.c
index 902dcc3d..c8330f71 100644
--- a/memdump/serial.c
+++ b/memdump/serial.c
@@ -3,78 +3,78 @@
#include "io.h"
enum {
- THR = 0,
- RBR = 0,
- DLL = 0,
- DLM = 1,
- IER = 1,
- IIR = 2,
- FCR = 2,
- LCR = 3,
- MCR = 4,
- LSR = 5,
- MSR = 6,
- SCR = 7,
+ THR = 0,
+ RBR = 0,
+ DLL = 0,
+ DLM = 1,
+ IER = 1,
+ IIR = 2,
+ FCR = 2,
+ LCR = 3,
+ MCR = 4,
+ LSR = 5,
+ MSR = 6,
+ SCR = 7,
};
int serial_init(struct serial_if *sif)
{
- uint16_t port = sif->port;
- uint8_t dll, dlm, lcr;
+ uint16_t port = sif->port;
+ uint8_t dll, dlm, lcr;
- /* Set 115200n81 */
- outb(0x83, port+LCR);
- outb(0x01, port+DLL);
- outb(0x00, port+DLM);
- (void)inb(port+IER); /* Synchronize */
- dll = inb(port+DLL);
- dlm = inb(port+DLM);
- lcr = inb(port+LCR);
- outb(0x03, port+LCR);
- (void)inb(port+IER); /* Synchronize */
+ /* Set 115200n81 */
+ outb(0x83, port + LCR);
+ outb(0x01, port + DLL);
+ outb(0x00, port + DLM);
+ (void)inb(port + IER); /* Synchronize */
+ dll = inb(port + DLL);
+ dlm = inb(port + DLM);
+ lcr = inb(port + LCR);
+ outb(0x03, port + LCR);
+ (void)inb(port + IER); /* Synchronize */
- if (dll != 0x01 || dlm != 0x00 || lcr != 0x83)
- return -1; /* This doesn't look like a serial port */
+ if (dll != 0x01 || dlm != 0x00 || lcr != 0x83)
+ return -1; /* This doesn't look like a serial port */
- /* Disable interrupts */
- outb(port+IER, 0);
+ /* Disable interrupts */
+ outb(port + IER, 0);
- /* Enable 16550A FIFOs if available */
- outb(port+FCR, 0x01); /* Enable FIFO */
- (void)inb(port+IER); /* Synchronize */
- if (inb(port+IIR) < 0xc0)
- outb(port+FCR, 0x00); /* Disable FIFOs if non-functional */
- (void)inb(port+IER); /* Synchronize */
+ /* Enable 16550A FIFOs if available */
+ outb(port + FCR, 0x01); /* Enable FIFO */
+ (void)inb(port + IER); /* Synchronize */
+ if (inb(port + IIR) < 0xc0)
+ outb(port + FCR, 0x00); /* Disable FIFOs if non-functional */
+ (void)inb(port + IER); /* Synchronize */
- return 0;
+ return 0;
}
void serial_write(struct serial_if *sif, const void *data, size_t n)
{
- uint16_t port = sif->port;
- const char *p = data;
- uint8_t lsr;
+ uint16_t port = sif->port;
+ const char *p = data;
+ uint8_t lsr;
- while (n--) {
- do {
- lsr = inb(port+LSR);
- } while (!(lsr & 0x20));
+ while (n--) {
+ do {
+ lsr = inb(port + LSR);
+ } while (!(lsr & 0x20));
- outb(*p++, port+THR);
- }
+ outb(*p++, port + THR);
+ }
}
void serial_read(struct serial_if *sif, void *data, size_t n)
{
- uint16_t port = sif->port;
- char *p = data;
- uint8_t lsr;
+ uint16_t port = sif->port;
+ char *p = data;
+ uint8_t lsr;
- while (n--) {
- do {
- lsr = inb(port+LSR);
- } while (!(lsr & 0x01));
+ while (n--) {
+ do {
+ lsr = inb(port + LSR);
+ } while (!(lsr & 0x01));
- *p++ = inb(port+RBR);
- }
+ *p++ = inb(port + RBR);
+ }
}