X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fzeroplus-logic-cube%2Fgl_usb.c;h=2443f455131308c99e039632419edc39ce953a43;hb=HEAD;hp=5fa7fd22182aaf29c290799b55374beaa301c111;hpb=cc8a7d250cf7daff452ce376224c9853529204ca;p=libsigrok.git diff --git a/hardware/zeroplus-logic-cube/gl_usb.c b/hardware/zeroplus-logic-cube/gl_usb.c deleted file mode 100644 index 5fa7fd22..00000000 --- a/hardware/zeroplus-logic-cube/gl_usb.c +++ /dev/null @@ -1,207 +0,0 @@ -/* - * This file is part of the sigrok project. - * - * Copyright (C) 2010 Sven Peter - * Copyright (C) 2010 Haxx Enterprises - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or - * without modification, are permitted provided that the following - * conditions are met: - * - * * Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * - * * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF - * THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include -#include -#include -#include "gl_usb.h" - -#define CTRL_IN (LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_ENDPOINT_IN | \ - LIBUSB_RECIPIENT_INTERFACE) -#define CTRL_OUT (LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_ENDPOINT_OUT | \ - LIBUSB_RECIPIENT_INTERFACE) - -const int PACKET_CTRL_LEN = 2; -const int PACKET_INT_LEN = 2; -const int PACKET_BULK_LEN = 64; -const int INTERFACE = 0; -const int ENDPOINT_INT_IN = 0x81; /* Endpoint 0x81 address for IN */ -const int ENDPOINT_INT_OUT = 0x01; /* Endpoint 1 address for OUT */ -const int ENDPOINT_BULK_IN = 0x81; /* Endpoint 0x81 address for IN */ -const int ENDPOINT_BULK_OUT = 0x02; /* Endpoint 1 address for OUT */ -const int TIMEOUT = 5000; /* Timeout in ms */ - -enum { - REQ_READBULK = 0x82, - REQ_WRITEADDR, - REQ_READDATA, - REQ_WRITEDATA, -}; - -static struct libusb_device_handle *g_devh = NULL; - -int gl_write_address(libusb_device_handle *devh, unsigned int address) -{ - unsigned char packet[8] = { address & 0xFF }; - int ret; - - ret = libusb_control_transfer(devh, CTRL_OUT, 0xc, REQ_WRITEADDR, - 0, packet, 1, TIMEOUT); - if (ret != 1) - sr_err("%s: libusb_control_transfer returned %d\n", - __func__, ret); - return ret; -} - -int gl_write_data(libusb_device_handle *devh, unsigned int val) -{ - unsigned char packet[8] = { val & 0xFF }; - int ret; - - ret = libusb_control_transfer(devh, CTRL_OUT, 0xc, REQ_WRITEDATA, - 0, packet, 1, TIMEOUT); - if (ret != 1) - sr_err("%s: libusb_control_transfer returned %d\n", - __func__, ret); - return ret; -} - -int gl_read_data(libusb_device_handle *devh) -{ - unsigned char packet[8] = { 0 }; - int ret; - - ret = libusb_control_transfer(devh, CTRL_IN, 0xc, REQ_READDATA, - 0, packet, 1, TIMEOUT); - if (ret != 1) - sr_err("%s: libusb_control_transfer returned %d, val=%hhx\n", - __func__, ret, packet[0]); - return (ret == 1) ? packet[0] : ret; -} - -int gl_read_bulk(libusb_device_handle *devh, void *buffer, unsigned int size) -{ - unsigned char packet[8] = - { 0, 0, 0, 0, size & 0xff, (size & 0xff00) >> 8, - (size & 0xff0000) >> 16, (size & 0xff000000) >> 24 }; - int ret, transferred = 0; - - ret = libusb_control_transfer(devh, CTRL_OUT, 0x4, REQ_READBULK, - 0, packet, 8, TIMEOUT); - if (ret != 8) - sr_err("%s: libusb_control_transfer returned %d\n", - __func__, ret); - - ret = libusb_bulk_transfer(devh, ENDPOINT_BULK_IN, buffer, size, - &transferred, TIMEOUT); - if (ret < 0) - sr_err("Bulk read error %d\n", ret); - return transferred; -} - -int gl_reg_write(libusb_device_handle *devh, unsigned int reg, - unsigned int val) -{ - int ret; - - ret = gl_write_address(devh, reg); - if (ret < 0) - return ret; - ret = gl_write_data(devh, val); - return ret; -} - -int gl_reg_read(libusb_device_handle *devh, unsigned int reg) -{ - int ret; - - ret = gl_write_address(devh, reg); - if (ret < 0) - return ret; - ret = gl_read_data(devh); - return ret; -} - -int gl_open(int vid) -{ - int ret; - struct libusb_device **devs; - struct libusb_device *dev; - size_t i = 0; - struct libusb_device_descriptor desc; - - ret = libusb_init(NULL); - if (ret < 0) - return GL_ELIBUSB; - - if (libusb_get_device_list(NULL, &devs) < 0) { - ret = GL_EOPEN; - goto gl_open_error; - } - - while ((dev = devs[i++]) != NULL) { - if (libusb_get_device_descriptor(dev, &desc) < 0) - break; - - if (desc.idVendor == vid) { - if (libusb_open(dev, &g_devh) < 0) - g_devh = NULL; - break; - } - } - - libusb_free_device_list(devs, 1); - - if (!g_devh) { - ret = GL_EOPEN; - goto gl_open_error; - } - - ret = libusb_set_configuration(g_devh, 1); - if (ret < 0) { - ret = GL_ESETCONFIG; - goto gl_open_error; - } - - ret = libusb_claim_interface(g_devh, 0); - if (ret < 0) { - ret = GL_ECLAIM; - goto gl_open_error; - } - - return GL_OK; - -gl_open_error: - gl_close(); - return ret; -} - -int gl_close(void) -{ - if (g_devh) { - libusb_release_interface(g_devh, 0); - libusb_reset_device(g_devh); - libusb_close(g_devh); - } - libusb_exit(NULL); - - return 0; -}