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Made the libatspi API driver-agnostic.

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- tools/include/atspi.h: API is now driver-independent
- tools/lib/driver.h: API between driver and frontend
- tools/lib/atspi.c: renamed to atusb.c and updated for driver API
- tools/lib/atspi.c: frontend functions for the driver API
- tools/lib/Makefile: added atusb.o
This commit is contained in:
Werner Almesberger
2010-09-05 18:59:42 -03:00
parent 36e73c4abb
commit e2b2df2e31
5 changed files with 286 additions and 137 deletions
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166
tools/lib/atspi.c
View File

@@ -11,171 +11,83 @@
*/
#include <stdlib.h>
#include <stdio.h>
#include <usb.h>
#include "f32xbase/usb.h"
#include "atspi/ep0.h"
#include "atspi/usb-ids.h"
#include "driver.h"
#include "atspi.h"
#define FROM_DEV ATSPI_FROM_DEV(0)
#define TO_DEV ATSPI_TO_DEV(0)
extern struct atspi_driver atusb_driver;
/* ----- error handling ---------------------------------------------------- */
struct atspi_dsc {
struct atspi_driver *driver;
void *handle;
};
static int error;
int atspi_error(void)
struct atspi_dsc *atspi_open(void)
{
return error;
}
struct atspi_dsc *dsc;
struct atspi_driver *driver;
void *handle;
int atspi_clear_error(void)
{
int ret;
ret = error;
error = 0;
return ret;
}
/* ----- open/close -------------------------------------------------------- */
usb_dev_handle *atspi_open(void)
{
usb_dev_handle *dev;
dev = open_usb(USB_VENDOR, USB_PRODUCT);
if (dev) {
error = 0;
} else {
fprintf(stderr, ":-(\n");
error = 1;
driver = &atusb_driver;
handle = driver->open();
if (!handle)
return NULL;
dsc = malloc(sizeof(*dsc));
if (!dsc) {
perror("malloc");
exit(1);
}
return dev;
dsc->driver = driver;
dsc->handle = handle;
return dsc;
}
void atspi_close(usb_dev_handle *dev)
void atspi_close(struct atspi_dsc *dsc)
{
/* to do */
if (dsc->driver->close)
dsc->driver->close(dsc->handle);
free(dsc);
}
/* ----- device mode ------------------------------------------------------- */
void atspi_reset(usb_dev_handle *dev)
void atspi_reset(struct atspi_dsc *dsc)
{
int res;
if (error)
return;
res =
usb_control_msg(dev, TO_DEV, ATSPI_RESET, 0, 0, NULL, 0, 1000);
if (res < 0) {
fprintf(stderr, "ATSPI_RESET: %d\n", res);
error = 1;
}
if (dsc->driver->reset)
dsc->driver->reset(dsc->handle);
}
void atspi_reset_rf(usb_dev_handle *dev)
void atspi_reset_rf(struct atspi_dsc *dsc)
{
int res;
if (error)
return;
res =
usb_control_msg(dev, TO_DEV, ATSPI_RF_RESET, 0, 0, NULL, 0, 1000);
if (res < 0) {
fprintf(stderr, "ATSPI_RF_RESET: %d\n", res);
error = 1;
}
dsc->driver->reset_rf(dsc->handle);
}
/* ----- register access --------------------------------------------------- */
void atspi_reg_write(usb_dev_handle *dev, uint8_t reg, uint8_t value)
void atspi_reg_write(struct atspi_dsc *dsc, uint8_t reg, uint8_t value)
{
int res;
if (error)
return;
res = usb_control_msg(dev, TO_DEV, ATSPI_REG_WRITE, value, reg,
NULL, 0, 1000);
if (res < 0) {
fprintf(stderr, "ATSPI_REG_WRITE: %d\n", res);
error = 1;
}
dsc->driver->reg_write(dsc->handle, reg, value);
}
uint8_t atspi_reg_read(usb_dev_handle *dev, uint8_t reg)
uint8_t atspi_reg_read(struct atspi_dsc *dsc, uint8_t reg)
{
uint8_t value = 0;
int res;
if (error)
return 0;
res = usb_control_msg(dev, FROM_DEV, ATSPI_REG_READ, 0, reg,
(void *) &value, 1, 1000);
if (res < 0) {
fprintf(stderr, "ATSPI_REG_READ: %d\n", res);
error = 1;
}
return value;
return dsc->driver->reg_read(dsc->handle, reg);
}
/* ----- frame buffer access ----------------------------------------------- */
void atspi_buf_write(usb_dev_handle *dev, const void *buf, int size)
void atspi_buf_write(struct atspi_dsc *dsc, const void *buf, int size)
{
int res;
if (error)
return;
res = usb_control_msg(dev, TO_DEV, ATSPI_BUF_WRITE, 0, 0,
(void *) buf, size, 1000);
if (res < 0) {
fprintf(stderr, "ATSPI_BUF_WRITE: %d\n", res);
error = 1;
}
dsc->driver->buf_write(dsc->handle, buf, size);
}
int atspi_buf_read(usb_dev_handle *dev, void *buf, int size)
int atspi_buf_read(struct atspi_dsc *dsc, void *buf, int size)
{
int res;
if (error)
return -1;
res = usb_control_msg(dev, FROM_DEV, ATSPI_BUF_READ, 0, 0,
buf, size, 1000);
if (res < 0) {
fprintf(stderr, "ATSPI_BUF_READ: %d\n", res);
error = 1;
}
return res;
return dsc->driver->buf_read(dsc->handle, buf, size);
}