sr: fx2lafw: Only check for correct major FW version.

[libsigrok.git] / hardware / fx2lafw / fx2lafw.c

diff --git a/hardware/fx2lafw/fx2lafw.c b/hardware/fx2lafw/fx2lafw.c
index 8132251f4410a296af06e03a3ae767bc52dd1f89..0ea4030d7b1fcffb2f81f191275f43fa3a17fab8 100644 (file)
--- a/hardware/fx2lafw/fx2lafw.c
+++ b/hardware/fx2lafw/fx2lafw.c
@@ -1,6 +1,7 @@
 /*
  * This file is part of the sigrok project.
  *
+ * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
  *
  * This program is free software: you can redistribute it and/or modify
@@ -32,6 +33,7 @@ static const struct fx2lafw_profile supported_fx2[] = {
        /*
         * CWAV USBee AX
         * EE Electronics ESLA201A
+        * ARMFLY AX-Pro
         */
        { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL,
                FIRMWARE_DIR "/fx2lafw-cwav-usbeeax.fw", 8 },
@@ -249,11 +251,15 @@ static int fx2lafw_dev_open(int dev_index)
                        break;
                }
 
-               if (vi.major != FX2LAFW_VERSION_MAJOR ||
-                   vi.minor != FX2LAFW_VERSION_MINOR) {
-                       sr_err("fx2lafw: Expected firmware version %d.%d "
-                              "got %d.%d.", FX2LAFW_VERSION_MAJOR,
-                              FX2LAFW_VERSION_MINOR, vi.major, vi.minor);
+               /*
+                * Changes in major version mean incompatible/API changes, so
+                * bail out if we encounter an incompatible version.
+                * Different minor versions are OK, they should be compatible.
+                */
+               if (vi.major != FX2LAFW_REQUIRED_VERSION_MAJOR) {
+                       sr_err("fx2lafw: Expected firmware version %d.x, "
+                              "got %d.%d.", FX2LAFW_REQUIRED_VERSION_MAJOR,
+                              vi.major, vi.minor);
                        break;
                }
 
@@ -371,7 +377,7 @@ static int hw_init(const char *devinfo)
                return 0;
        }
 
-       /* Find all fx2lafw compatible devices and upload firware to them. */
+       /* Find all fx2lafw compatible devices and upload firmware to them. */
        libusb_get_device_list(usb_context, &devlist);
        for (i = 0; devlist[i]; i++) {
 
@@ -414,7 +420,7 @@ static int hw_init(const char *devinfo)
                        if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION,
                                prof->firmware) == SR_OK)
                                /* Remember when the firmware on this device was updated */
-                               g_get_current_time(&ctx->fw_updated);
+                               ctx->fw_updated = g_get_monotonic_time();
                        else
                                sr_err("fx2lafw: Firmware upload failed for "
                                       "device %d.", devcnt);
@@ -431,33 +437,37 @@ static int hw_init(const char *devinfo)
 
 static int hw_dev_open(int dev_index)
 {
-       GTimeVal cur_time;
        struct sr_dev_inst *sdi;
        struct context *ctx;
-       int timediff, ret;
+       int ret;
+       int64_t timediff_us, timediff_ms;
 
        if (!(sdi = sr_dev_inst_get(dev_insts, dev_index)))
                return SR_ERR;
        ctx = sdi->priv;
 
        /*
-        * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY ms
-        * for the FX2 to renumerate.
+        * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
+        * milliseconds for the FX2 to renumerate.
         */
        ret = 0;
-       if (GTV_TO_MSEC(ctx->fw_updated) > 0) {
+
+       if (ctx->fw_updated > 0) {
                sr_info("fx2lafw: Waiting for device to reset.");
                /* takes at least 300ms for the FX2 to be gone from the USB bus */
                g_usleep(300 * 1000);
-               timediff = 0;
-               while (timediff < MAX_RENUM_DELAY) {
+               timediff_ms = 0;
+               while (timediff_ms < MAX_RENUM_DELAY_MS) {
                        if ((ret = fx2lafw_dev_open(dev_index)) == SR_OK)
                                break;
                        g_usleep(100 * 1000);
-                       g_get_current_time(&cur_time);
-                       timediff = GTV_TO_MSEC(cur_time) - GTV_TO_MSEC(ctx->fw_updated);
+
+                       timediff_us = g_get_monotonic_time() - ctx->fw_updated;
+                       timediff_ms = timediff_us / G_USEC_PER_SEC;
+                       sr_spew("fx2lafw: timediff: %" PRIi64 " us.",
+                               timediff_us);
                }
-               sr_info("fx2lafw: Device came back after %d ms.", timediff);
+               sr_info("fx2lafw: Device came back after %d ms.", timediff_ms);
        } else {
                ret = fx2lafw_dev_open(dev_index);
        }