From f684252b2530d86f3a8330940105b86c770231f1 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Martin=20Schm=C3=B6lzer?= Date: Thu, 27 Jun 2013 19:26:19 +0200 Subject: [PATCH] ULINK driver: port from libusb-0.1 to libusb-1.0 API MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The ULINK driver now uses libusb-1.0 calls (synchronous device I/O) directly (not the common layer provided by libusb1_common.c) Successfully tested with ULINK probe and STM32F103 (debug, erase and write flash). Change-Id: Ic037a3582db85e49a8cc1ec0dd36f629e4757929 Signed-off-by: Martin Schmölzer Reviewed-on: http://openocd.zylin.com/1459 Tested-by: jenkins Reviewed-by: Spencer Oliver --- configure.ac | 4 +- src/jtag/drivers/ulink.c | 100 +++++++++++++++++++++++---------------- 2 files changed, 60 insertions(+), 44 deletions(-) diff --git a/configure.ac b/configure.ac index 2998ec79..18958136 100644 --- a/configure.ac +++ b/configure.ac @@ -1177,7 +1177,7 @@ fi # check if some driver requires libusb-0.1 need_usb0=no if test $build_vsllink = yes -o $build_usbprog = yes -o \ - $build_rlink = yes -o $build_ulink = yes -o $build_armjtagew = yes; then + $build_rlink = yes -o $build_armjtagew = yes; then need_usb0=yes fi @@ -1191,7 +1191,7 @@ fi # check if some driver requires libusb-1.x need_usb_ng=no if test $build_ftdi = yes -o $build_hladapter_icdi = yes -o \ - $build_hladapter_stlink = yes; then + $build_hladapter_stlink = yes -o $build_ulink = yes; then need_usb_ng=yes fi diff --git a/src/jtag/drivers/ulink.c b/src/jtag/drivers/ulink.c index c195bb2f..94f6c315 100644 --- a/src/jtag/drivers/ulink.c +++ b/src/jtag/drivers/ulink.c @@ -1,5 +1,5 @@ /*************************************************************************** - * Copyright (C) 2011 by Martin Schmoelzer * + * Copyright (C) 2011-2013 by Martin Schmoelzer * * * * * * This program is free software; you can redistribute it and/or modify * @@ -26,7 +26,7 @@ #include #include #include -#include "usb_common.h" +#include #include "OpenULINK/include/msgtypes.h" /** USB Vendor ID of ULINK device in unconfigured state (no firmware loaded @@ -146,7 +146,8 @@ struct ulink_cmd { /** Describes one driver instance */ struct ulink { - struct usb_dev_handle *usb_handle; + struct libusb_context *libusb_ctx; + struct libusb_device_handle *usb_device_handle; enum ulink_type type; int delay_scan_in; /* /< Delay value for SCAN_IN commands */ @@ -167,7 +168,7 @@ int ulink_usb_open(struct ulink **device); int ulink_usb_close(struct ulink **device); /* ULINK MCU (Cypress EZ-USB) specific functions */ -int ulink_cpu_reset(struct ulink *device, char reset_bit); +int ulink_cpu_reset(struct ulink *device, unsigned char reset_bit); int ulink_load_firmware_and_renumerate(struct ulink **device, char *filename, uint32_t delay); int ulink_load_firmware(struct ulink *device, char *filename); @@ -258,30 +259,46 @@ struct ulink *ulink_handle; /** * Opens the ULINK device and claims its USB interface. * + * Currently, only the original ULINK is supported + * * @param device pointer to struct ulink identifying ULINK driver instance. * @return on success: ERROR_OK * @return on failure: ERROR_FAIL */ int ulink_usb_open(struct ulink **device) { - int ret; - struct usb_dev_handle *usb_handle; + ssize_t num_devices, i; + bool found; + libusb_device **usb_devices; + struct libusb_device_descriptor usb_desc; + struct libusb_device_handle *usb_device_handle; - /* Currently, only original ULINK is supported */ - uint16_t vids[] = { ULINK_VID, 0 }; - uint16_t pids[] = { ULINK_PID, 0 }; + num_devices = libusb_get_device_list((*device)->libusb_ctx, &usb_devices); - ret = jtag_usb_open(vids, pids, &usb_handle); + if (num_devices <= 0) + return ERROR_FAIL; - if (ret != ERROR_OK) - return ret; + found = false; + for (i = 0; i < num_devices; i++) { + if (libusb_get_device_descriptor(usb_devices[i], &usb_desc) != 0) + continue; + else if (usb_desc.idVendor == ULINK_VID && usb_desc.idProduct == ULINK_PID) { + found = true; + break; + } + } + + if (!found) + return ERROR_FAIL; - ret = usb_claim_interface(usb_handle, 0); + if (libusb_open(usb_devices[i], &usb_device_handle) != 0) + return ERROR_FAIL; + libusb_free_device_list(usb_devices, 1); - if (ret != 0) - return ret; + if (libusb_claim_interface(usb_device_handle, 0) != 0) + return ERROR_FAIL; - (*device)->usb_handle = usb_handle; + (*device)->usb_device_handle = usb_device_handle; (*device)->type = ULINK_1; return ERROR_OK; @@ -296,13 +313,12 @@ int ulink_usb_open(struct ulink **device) */ int ulink_usb_close(struct ulink **device) { - if (usb_release_interface((*device)->usb_handle, 0) != 0) + if (libusb_release_interface((*device)->usb_device_handle, 0) != 0) return ERROR_FAIL; - if (usb_close((*device)->usb_handle) != 0) - return ERROR_FAIL; + libusb_close((*device)->usb_device_handle); - (*device)->usb_handle = NULL; + (*device)->usb_device_handle = NULL; return ERROR_OK; } @@ -318,12 +334,12 @@ int ulink_usb_close(struct ulink **device) * @return on success: ERROR_OK * @return on failure: ERROR_FAIL */ -int ulink_cpu_reset(struct ulink *device, char reset_bit) +int ulink_cpu_reset(struct ulink *device, unsigned char reset_bit) { int ret; - ret = usb_control_msg(device->usb_handle, - (USB_ENDPOINT_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE), + ret = libusb_control_transfer(device->usb_device_handle, + (LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE), REQUEST_FIRMWARE_LOAD, CPUCS_REG, 0, &reset_bit, 1, USB_TIMEOUT); /* usb_control_msg() returns the number of bytes transferred during the @@ -467,9 +483,9 @@ int ulink_write_firmware_section(struct ulink *device, else chunk_size = bytes_remaining; - ret = usb_control_msg(device->usb_handle, - (USB_ENDPOINT_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE), - REQUEST_FIRMWARE_LOAD, addr, FIRMWARE_ADDR, (char *)data_ptr, + ret = libusb_control_transfer(device->usb_device_handle, + (LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE), + REQUEST_FIRMWARE_LOAD, addr, FIRMWARE_ADDR, (unsigned char *)data_ptr, chunk_size, USB_TIMEOUT); if (ret != (int)chunk_size) { @@ -694,7 +710,7 @@ int ulink_append_queue(struct ulink *device, struct ulink_cmd *ulink_cmd) int ulink_execute_queued_commands(struct ulink *device, int timeout) { struct ulink_cmd *current; - int ret, i, index_out, index_in, count_out, count_in; + int ret, i, index_out, index_in, count_out, count_in, transferred; uint8_t buffer[64]; #ifdef _DEBUG_JTAG_IO_ @@ -719,20 +735,20 @@ int ulink_execute_queued_commands(struct ulink *device, int timeout) } /* Send packet to ULINK */ - ret = usb_bulk_write(device->usb_handle, (2 | USB_ENDPOINT_OUT), - (char *)buffer, count_out, timeout); - if (ret < 0) + ret = libusb_bulk_transfer(device->usb_device_handle, (2 | LIBUSB_ENDPOINT_OUT), + (unsigned char *)buffer, count_out, &transferred, timeout); + if (ret != 0) return ERROR_FAIL; - if (ret != count_out) + if (transferred != count_out) return ERROR_FAIL; /* Wait for response if commands contain IN payload data */ if (count_in > 0) { - ret = usb_bulk_read(device->usb_handle, (2 | USB_ENDPOINT_IN), - (char *)buffer, 64, timeout); - if (ret < 0) + ret = libusb_bulk_transfer(device->usb_device_handle, (2 | LIBUSB_ENDPOINT_IN), + (unsigned char *)buffer, 64, &transferred, timeout); + if (ret != 0) return ERROR_FAIL; - if (ret != count_in) + if (transferred != count_in) return ERROR_FAIL; /* Write back IN payload data */ @@ -2142,17 +2158,17 @@ static int ulink_speed_div(int speed, int *khz) */ static int ulink_init(void) { - int ret; + int ret, transferred; char str_manufacturer[20]; bool download_firmware = false; - uint8_t *dummy; + unsigned char *dummy; uint8_t input_signals, output_signals; ulink_handle = calloc(1, sizeof(struct ulink)); if (ulink_handle == NULL) return ERROR_FAIL; - usb_init(); + libusb_init(&ulink_handle->libusb_ctx); ret = ulink_usb_open(&ulink_handle); if (ret != ERROR_OK) { @@ -2163,7 +2179,7 @@ static int ulink_init(void) } /* Get String Descriptor to determine if firmware needs to be loaded */ - ret = usb_get_string_simple(ulink_handle->usb_handle, 1, str_manufacturer, 20); + ret = libusb_get_string_descriptor_ascii(ulink_handle->usb_device_handle, 1, (unsigned char *)str_manufacturer, 20); if (ret < 0) { /* Could not get descriptor -> Unconfigured or original Keil firmware */ download_firmware = true; @@ -2202,12 +2218,12 @@ static int ulink_init(void) * shut down by the user via Ctrl-C. Try to retrieve this Bulk IN packet. */ dummy = calloc(64, sizeof(uint8_t)); - ret = usb_bulk_read(ulink_handle->usb_handle, (2 | USB_ENDPOINT_IN), - (char *)dummy, 64, 200); + ret = libusb_bulk_transfer(ulink_handle->usb_device_handle, (2 | LIBUSB_ENDPOINT_IN), + dummy, 64, &transferred, 200); free(dummy); - if (ret < 0) { + if (ret != 0 || transferred == 0) { /* Bulk IN transfer failed -> unrecoverable error condition */ LOG_ERROR("Cannot communicate with ULINK device. Disconnect ULINK from " "the USB port and re-connect, then re-run OpenOCD"); -- 2.39.5