[flashrom] Add a "device" parameter for Dediprog
David Hendricks
dhendrix at google.com
Thu Nov 1 18:12:01 CET 2012
This patch adds a "device" parameter for Dediprog which enables use of
multiple dediprogs connected to a single machine. Very handy for test racks.
Example usage:
flashrom -p dediprog:device=0
flashrom -p dediprog:device=1
etc...
The patch was originally written by Nathan Laredo, I'm just forwarding it
upstream:
Signed-off-by: Nathan Laredo <nil at google.com>
Signed-off-by: David Hendricks <dhendrix at google.com>
Index: dediprog.c
===================================================================
--- dediprog.c (revision 1620)
+++ dediprog.c (working copy)
@@ -46,7 +46,9 @@
#endif
/* Might be useful for other USB devices as well. static for now. */
-static struct usb_device *get_device_by_vid_pid(uint16_t vid, uint16_t pid)
+/* 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,
+ int device)
{
struct usb_bus *bus;
struct usb_device *dev;
@@ -54,8 +56,11 @@
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))
- return dev;
+ (dev->descriptor.idProduct == pid)) {
+ if (device == 0)
+ return dev;
+ device--;
+ }
return NULL;
}
@@ -777,8 +782,9 @@
int dediprog_init(void)
{
struct usb_device *dev;
- char *voltage;
+ char *voltage, *device;
int millivolt = 3500;
+ int usedevice = 0;
int ret;
msg_pspew("%s\n", __func__);
@@ -792,11 +798,21 @@
msg_pinfo("Setting voltage to %i mV\n", millivolt);
}
+ device = extract_programmer_param("device");
+ if (device) {
+ usedevice = strtol(device, NULL, 0);
+ free(device);
+ if (usedevice < 0)
+ return 1;
+ msg_pinfo("Using device %i\n", usedevice);
+ }
+
+
/* Here comes the USB stuff. */
usb_init();
usb_find_busses();
usb_find_devices();
- dev = get_device_by_vid_pid(0x0483, 0xdada);
+ dev = get_device_by_vid_pid(0x0483, 0xdada, usedevice);
if (!dev) {
msg_perr("Could not find a Dediprog SF100 on USB!\n");
return 1;
--
David Hendricks (dhendrix)
Systems Software Engineer, Google Inc.
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