X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=blobdiff_plain;f=hardware%2Fzeroplus-logic-cube%2Fgl_usb.c;h=20993286d275ffde471cebbe9809b4ef850c76f7;hp=b371ba5979c8afe1d6292febbd9cc2f28b83ad0d;hb=43cd4637285833706f8a404ca027bcf0ee75b9ae;hpb=a5e18535ad897084b9a67dbee19bcc1ebd21ae7a diff --git a/hardware/zeroplus-logic-cube/gl_usb.c b/hardware/zeroplus-logic-cube/gl_usb.c index b371ba59..20993286 100644 --- a/hardware/zeroplus-logic-cube/gl_usb.c +++ b/hardware/zeroplus-logic-cube/gl_usb.c @@ -1,5 +1,5 @@ /* - * This file is part of the sigrok project. + * This file is part of the libsigrok project. * * Copyright (C) 2010 Sven Peter * Copyright (C) 2010 Haxx Enterprises @@ -29,24 +29,20 @@ * THE POSSIBILITY OF SUCH DAMAGE. */ -#include #include +#include +#include "libsigrok.h" +#include "libsigrok-internal.h" #include "gl_usb.h" +#include "protocol.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) +#define EP1_BULK_IN (LIBUSB_ENDPOINT_IN | 1) -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 */ +#define TIMEOUT 5000 /* Timeout in ms */ enum { REQ_READBULK = 0x82, @@ -55,9 +51,7 @@ enum { REQ_WRITEDATA, }; -static struct libusb_device_handle *g_devh = NULL; - -int gl_write_address(libusb_device_handle *devh, unsigned int address) +static int gl_write_address(libusb_device_handle *devh, unsigned int address) { unsigned char packet[8] = { address & 0xFF }; int ret; @@ -65,12 +59,11 @@ int gl_write_address(libusb_device_handle *devh, unsigned int address) ret = libusb_control_transfer(devh, CTRL_OUT, 0xc, REQ_WRITEADDR, 0, packet, 1, TIMEOUT); if (ret != 1) - printf("%s: libusb_control_transfer returned %d\n", - __FUNCTION__, ret); + sr_err("%s: %s.", __func__, libusb_error_name(ret)); return ret; } -int gl_write_data(libusb_device_handle *devh, unsigned int val) +static int gl_write_data(libusb_device_handle *devh, unsigned int val) { unsigned char packet[8] = { val & 0xFF }; int ret; @@ -78,12 +71,11 @@ int gl_write_data(libusb_device_handle *devh, unsigned int val) ret = libusb_control_transfer(devh, CTRL_OUT, 0xc, REQ_WRITEDATA, 0, packet, 1, TIMEOUT); if (ret != 1) - printf("%s: libusb_control_transfer returned %d\n", - __FUNCTION__, ret); + sr_err("%s: %s.", __func__, libusb_error_name(ret)); return ret; } -int gl_read_data(libusb_device_handle *devh) +static int gl_read_data(libusb_device_handle *devh) { unsigned char packet[8] = { 0 }; int ret; @@ -91,12 +83,13 @@ int gl_read_data(libusb_device_handle *devh) ret = libusb_control_transfer(devh, CTRL_IN, 0xc, REQ_READDATA, 0, packet, 1, TIMEOUT); if (ret != 1) - printf("%s: libusb_control_transfer returned %d, val=%hhx\n", - __FUNCTION__, ret, packet[0]); + sr_err("%s: %s, val=%hhx.", __func__, + libusb_error_name(ret), packet[0]); return (ret == 1) ? packet[0] : ret; } -int gl_read_bulk(libusb_device_handle *devh, void *buffer, unsigned int size) +SR_PRIV 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, @@ -106,17 +99,18 @@ int gl_read_bulk(libusb_device_handle *devh, void *buffer, unsigned int size) ret = libusb_control_transfer(devh, CTRL_OUT, 0x4, REQ_READBULK, 0, packet, 8, TIMEOUT); if (ret != 8) - printf("%s: libusb_control_transfer returned %d\n", - __FUNCTION__, ret); + sr_err("%s: libusb_control_transfer: %s.", __func__, + libusb_error_name(ret)); - ret = libusb_bulk_transfer(devh, ENDPOINT_BULK_IN, buffer, size, + ret = libusb_bulk_transfer(devh, EP1_BULK_IN, buffer, size, &transferred, TIMEOUT); if (ret < 0) - fprintf(stderr, "Bulk read error %d\n", ret); + sr_err("%s: libusb_bulk_transfer: %s.", __func__, + libusb_error_name(ret)); return transferred; } -int gl_reg_write(libusb_device_handle *devh, unsigned int reg, +SR_PRIV int gl_reg_write(libusb_device_handle *devh, unsigned int reg, unsigned int val) { int ret; @@ -128,7 +122,7 @@ int gl_reg_write(libusb_device_handle *devh, unsigned int reg, return ret; } -int gl_reg_read(libusb_device_handle *devh, unsigned int reg) +SR_PRIV int gl_reg_read(libusb_device_handle *devh, unsigned int reg) { int ret; @@ -139,68 +133,20 @@ int gl_reg_read(libusb_device_handle *devh, unsigned int reg) return ret; } -int gl_open(int vid) +SR_PRIV int gl_reg_read_buf(libusb_device_handle *devh, unsigned int reg, + unsigned char *buf, unsigned int len) { int ret; - struct libusb_device **devs; - struct libusb_device *dev; - size_t i = 0; - struct libusb_device_descriptor desc; + unsigned int i; - ret = libusb_init(NULL); + ret = gl_write_address(devh, reg); 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); + return ret; + for (i = 0; i < len; i++) { + ret = gl_read_data(devh); + if (ret < 0) + return ret; + buf[i] = ret; } - libusb_exit(NULL); - return 0; }