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Diffstat (limited to 'pickit2_spi.c')
-rw-r--r--pickit2_spi.c131
1 files changed, 56 insertions, 75 deletions
diff --git a/pickit2_spi.c b/pickit2_spi.c
index e13e7211c..6d9b28f6c 100644
--- a/pickit2_spi.c
+++ b/pickit2_spi.c
@@ -39,12 +39,7 @@
#include <string.h>
#include <limits.h>
#include <errno.h>
-
-#if IS_WINDOWS
-#include <lusb0_usb.h>
-#else
-#include <usb.h>
-#endif
+#include <libusb.h>
#include "flash.h"
#include "chipdrivers.h"
@@ -57,7 +52,7 @@ const struct dev_entry devs_pickit2_spi[] = {
{}
};
-static usb_dev_handle *pickit2_handle;
+static libusb_device_handle *pickit2_handle;
/* Default USB transaction timeout in ms */
#define DFLT_TIMEOUT 10000
@@ -94,36 +89,18 @@ static usb_dev_handle *pickit2_handle;
#define SCR_VDD_OFF 0xFE
#define SCR_VDD_ON 0xFF
-/* Might be useful for other USB devices as well. static for now.
- * device parameter allows user to specify one device of multiple installed */
-static struct usb_device *get_device_by_vid_pid(uint16_t vid, uint16_t pid, unsigned int device)
-{
- struct usb_bus *bus;
- struct usb_device *dev;
-
- for (bus = usb_get_busses(); bus; bus = bus->next)
- for (dev = bus->devices; dev; dev = dev->next)
- if ((dev->descriptor.idVendor == vid) &&
- (dev->descriptor.idProduct == pid)) {
- if (device == 0)
- return dev;
- device--;
- }
-
- return NULL;
-}
-
static int pickit2_get_firmware_version(void)
{
int ret;
uint8_t command[CMD_LENGTH] = {CMD_GET_VERSION, CMD_END_OF_BUFFER};
- ret = usb_interrupt_write(pickit2_handle, ENDPOINT_OUT, (char *)command, CMD_LENGTH, DFLT_TIMEOUT);
- ret = usb_interrupt_read(pickit2_handle, ENDPOINT_IN, (char *)command, CMD_LENGTH, DFLT_TIMEOUT);
+ int transferred;
+ ret = libusb_interrupt_transfer(pickit2_handle, ENDPOINT_OUT, command, CMD_LENGTH, &transferred, DFLT_TIMEOUT);
+ ret = libusb_interrupt_transfer(pickit2_handle, ENDPOINT_IN, command, CMD_LENGTH, &transferred, DFLT_TIMEOUT);
msg_pdbg("PICkit2 Firmware Version: %d.%d\n", (int)command[0], (int)command[1]);
- if (ret != CMD_LENGTH) {
- msg_perr("Command Get Firmware Version failed (%s)!\n", usb_strerror());
+ if (ret != 0) {
+ msg_perr("Command Get Firmware Version failed!\n");
return 1;
}
@@ -165,11 +142,11 @@ static int pickit2_set_spi_voltage(int millivolt)
voltage_selector * 13,
CMD_END_OF_BUFFER
};
+ int transferred;
+ int ret = libusb_interrupt_transfer(pickit2_handle, ENDPOINT_OUT, command, CMD_LENGTH, &transferred, DFLT_TIMEOUT);
- int ret = usb_interrupt_write(pickit2_handle, ENDPOINT_OUT, (char *)command, CMD_LENGTH, DFLT_TIMEOUT);
-
- if (ret != CMD_LENGTH) {
- msg_perr("Command Set Voltage failed (%s)!\n", usb_strerror());
+ if (ret != 0) {
+ msg_perr("Command Set Voltage failed!\n");
return 1;
}
@@ -201,10 +178,11 @@ static int pickit2_set_spi_speed(unsigned int spispeed_idx)
CMD_END_OF_BUFFER
};
- int ret = usb_interrupt_write(pickit2_handle, ENDPOINT_OUT, (char *)command, CMD_LENGTH, DFLT_TIMEOUT);
+ int transferred;
+ int ret = libusb_interrupt_transfer(pickit2_handle, ENDPOINT_OUT, command, CMD_LENGTH, &transferred, DFLT_TIMEOUT);
- if (ret != CMD_LENGTH) {
- msg_perr("Command Set SPI Speed failed (%s)!\n", usb_strerror());
+ if (ret != 0) {
+ msg_perr("Command Set SPI Speed failed!\n");
return 1;
}
@@ -270,18 +248,20 @@ static int pickit2_spi_send_command(struct flashctx *flash, unsigned int writecn
buf[i++] = CMD_UPLOAD_DATA;
buf[i++] = CMD_END_OF_BUFFER;
- int ret = usb_interrupt_write(pickit2_handle, ENDPOINT_OUT, (char *)buf, CMD_LENGTH, DFLT_TIMEOUT);
+ int transferred;
+ int ret = libusb_interrupt_transfer(pickit2_handle, ENDPOINT_OUT, buf, CMD_LENGTH, &transferred, DFLT_TIMEOUT);
- if (ret != CMD_LENGTH) {
- msg_perr("Send SPI failed, expected %i, got %i %s!\n", writecnt, ret, usb_strerror());
+ if (ret != 0) {
+ msg_perr("Send SPI failed!\n");
return 1;
}
if (readcnt) {
- ret = usb_interrupt_read(pickit2_handle, ENDPOINT_IN, (char *)buf, CMD_LENGTH, DFLT_TIMEOUT);
+ int length = 0;
+ ret = libusb_interrupt_transfer(pickit2_handle, ENDPOINT_IN, buf, CMD_LENGTH, &length, DFLT_TIMEOUT);
- if (ret != CMD_LENGTH) {
- msg_perr("Receive SPI failed, expected %i, got %i %s!\n", readcnt, ret, usb_strerror());
+ if (length == 0 || ret != 0) {
+ msg_perr("Receive SPI failed\n");
return 1;
}
@@ -376,27 +356,24 @@ static int pickit2_shutdown(void *data)
CMD_END_OF_BUFFER
};
- int ret = usb_interrupt_write(pickit2_handle, ENDPOINT_OUT, (char *)command, CMD_LENGTH, DFLT_TIMEOUT);
+ int transferred;
+ int ret = libusb_interrupt_transfer(pickit2_handle, ENDPOINT_OUT, command, CMD_LENGTH, &transferred, DFLT_TIMEOUT);
- if (ret != CMD_LENGTH) {
- msg_perr("Command Shutdown failed (%s)!\n", usb_strerror());
+ if (ret != 0) {
+ msg_perr("Command Shutdown failed!\n");
ret = 1;
}
- if (usb_release_interface(pickit2_handle, 0) != 0) {
+ if (libusb_release_interface(pickit2_handle, 0) != 0) {
msg_perr("Could not release USB interface!\n");
ret = 1;
}
- if (usb_close(pickit2_handle) != 0) {
- msg_perr("Could not close USB device!\n");
- ret = 1;
- }
+ libusb_close(pickit2_handle);
+ libusb_exit(NULL);
return ret;
}
int pickit2_spi_init(void)
{
- unsigned int usedevice = 0; // FIXME: Allow selecting one of multiple devices
-
uint8_t buf[CMD_LENGTH] = {
CMD_EXEC_SCRIPT,
10, /* Script length */
@@ -442,32 +419,36 @@ int pickit2_spi_init(void)
return 1;
}
- /* Here comes the USB stuff */
- usb_init();
- (void)usb_find_busses();
- (void)usb_find_devices();
+ if (libusb_init(NULL) < 0) {
+ msg_perr("Couldn't initialize libusb!\n");
+ return -1;
+ }
+
+#if LIBUSB_API_VERSION < 0x01000106
+ libusb_set_debug(NULL, 3);
+#else
+ libusb_set_option(NULL, LIBUSB_OPTION_LOG_LEVEL, LIBUSB_LOG_LEVEL_INFO);
+#endif
+
const uint16_t vid = devs_pickit2_spi[0].vendor_id;
const uint16_t pid = devs_pickit2_spi[0].device_id;
- struct usb_device *dev = get_device_by_vid_pid(vid, pid, usedevice);
- if (dev == NULL) {
- msg_perr("Could not find a PICkit2 on USB!\n");
+ pickit2_handle = libusb_open_device_with_vid_pid(NULL, vid, pid);
+ if (pickit2_handle == NULL) {
+ msg_perr("Could not open device PICkit2!\n");
+ libusb_exit(NULL);
return 1;
}
- msg_pdbg("Found USB device (%04x:%04x).\n", dev->descriptor.idVendor, dev->descriptor.idProduct);
- pickit2_handle = usb_open(dev);
- int ret = usb_set_configuration(pickit2_handle, 1);
- if (ret != 0) {
- msg_perr("Could not set USB device configuration: %i %s\n", ret, usb_strerror());
- if (usb_close(pickit2_handle) != 0)
- msg_perr("Could not close USB device!\n");
+ if (libusb_set_configuration(pickit2_handle, 1) != 0) {
+ msg_perr("Could not set USB device configuration.\n");
+ libusb_close(pickit2_handle);
+ libusb_exit(NULL);
return 1;
}
- ret = usb_claim_interface(pickit2_handle, 0);
- if (ret != 0) {
- msg_perr("Could not claim USB device interface %i: %i %s\n", 0, ret, usb_strerror());
- if (usb_close(pickit2_handle) != 0)
- msg_perr("Could not close USB device!\n");
+ if (libusb_claim_interface(pickit2_handle, 0) != 0) {
+ msg_perr("Could not claim USB device interface\n");
+ libusb_close(pickit2_handle);
+ libusb_exit(NULL);
return 1;
}
@@ -492,9 +473,9 @@ int pickit2_spi_init(void)
/* Perform basic setup.
* Configure pin directions and logic levels, turn Vdd on, turn busy LED on and clear buffers. */
- ret = usb_interrupt_write(pickit2_handle, ENDPOINT_OUT, (char *)buf, CMD_LENGTH, DFLT_TIMEOUT);
- if (ret != CMD_LENGTH) {
- msg_perr("Command Setup failed (%s)!\n", usb_strerror());
+ int transferred;
+ if (libusb_interrupt_transfer(pickit2_handle, ENDPOINT_OUT, buf, CMD_LENGTH, &transferred, DFLT_TIMEOUT) != 0) {
+ msg_perr("Command Setup failed!\n");
return 1;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-08 01:20:29 +0000