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Delay calling libusb_set_option() until libusb is initialized

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G15daemon calls libg15Debug() before initLibG15(). This works well with
the legacy library, but the new one requres a context to be initialized
before calling any functions. This patch adds tracking of libusb
initialization status and never calls libusb_set_option() when library
is not initialized.
This commit is contained in:
Alexander Ponyatykh committed 2019-11-18 02:50:13 +03:00
1 parent 92e60dd1a4
commit 98449afc5d
1 file changed
+63 -47
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debian/patches/02-Migrate-from-legacy-libusb-0.1-to-libusb-1.0.patch
Vendored
+63 -47
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@@ -30,7 +30,7 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
AC_C_CONST
--- a/libg15.c
+++ b/libg15.c
@@ -24,14 +24,14 @@
@@ -24,14 +24,15 @@
#include "libg15.h"
#include <stdio.h>
#include <stdarg.h>
@@ -45,20 +45,22 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
+static libusb_device_handle *keyboard_device = 0;
static int libg15_debugging_enabled = 0;
-static int enospc_slowdown = 0;
+static int libusb_initialized = 0;
static int found_devicetype = -1;
static int shared_device = 0;
@@ -67,7 +67,8 @@
@@ -67,7 +68,9 @@
void libg15Debug(int option) {
libg15_debugging_enabled = option;
- usb_set_debug(option);
+ if (option)
+ libusb_set_option(NULL, LIBUSB_OPTION_LOG_LEVEL, LIBUSB_LOG_LEVEL_DEBUG);
+ if (option && libusb_initialized) {
+ libusb_set_option(NULL, LIBUSB_OPTION_LOG_LEVEL, LIBUSB_LOG_LEVEL_WARNING);
+ }
}
/* debugging wrapper */
@@ -86,191 +87,205 @@
@@ -86,191 +89,209 @@
/* return number of connected and supported devices */
int g15NumberOfConnectedDevices() {
@@ -102,23 +104,26 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
static int initLibUsb()
{
- usb_init();
-
+ int errcode = libusb_init(NULL);
- /**
- * usb_find_busses and usb_find_devices both report the number of devices
- * / busses added / removed since the last call. since this is the first
- * call we have to return values != 0 or else we didnt find anything */
+ int errcode = libusb_init(NULL);
- if (!usb_find_busses())
- return G15_ERROR_OPENING_USB_DEVICE;
-
- if (!usb_find_devices())
- if (!usb_find_busses())
+ if (errcode != 0)
+ {
+ g15_log(stderr, G15_LOG_WARN, "Failed to initialize libusb-1.0: %s\n", libusb_strerror(errcode));
return G15_ERROR_OPENING_USB_DEVICE;
+ }
- if (!usb_find_devices())
- return G15_ERROR_OPENING_USB_DEVICE;
+ libusb_initialized = 1;
+
+ libg15Debug(libg15_debugging_enabled);
return G15_NO_ERROR;
}
@@ -139,17 +144,17 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
+ int ret;
+
+ ssize_t cnt = libusb_get_device_list(NULL, &list);
- for (bus = usb_busses; bus; bus = bus->next)
+
+ if (cnt < 0)
{
- for (dev = bus->devices; dev; dev = dev->next)
+ {
+ g15_log(stderr, G15_LOG_WARN, "Unable to list USB devices: %s\n", libusb_strerror(cnt));
+ return 0;
+ }
+
- for (bus = usb_busses; bus; bus = bus->next)
+ for (ssize_t devno = 0; devno < cnt; devno++)
+ {
{
- for (dev = bus->devices; dev; dev = dev->next)
+ libusb_get_device_descriptor(list[devno], &desc);
+ if (desc.idVendor == handled_device.vendorid && desc.idProduct == handled_device.productid)
{
@@ -185,14 +190,13 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
+ }
+
+ found_devicetype = device_index;
+
+ g15_log(stderr,G15_LOG_INFO,"Found %s, trying to open it\n",handled_device.name);
- usleep(50*1000);
+ g15_log(stderr,G15_LOG_INFO,"Found %s, trying to open it\n",handled_device.name);
+
+ ret = libusb_open(dev, &devh);
+ libusb_free_device_list(list, 1);
- g15_log(stderr, G15_LOG_INFO, "Device has %i possible configurations\n",dev->descriptor.bNumConfigurations);
+
+ if (ret || !devh)
+ {
+ g15_log(stderr,G15_LOG_WARN, "Error, could not open the keyboard: %s\n", libusb_strerror(ret));
@@ -202,21 +206,17 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
+ usleep(50*1000);
+
+ g15_log(stderr, G15_LOG_INFO, "Device has %i possible configurations\n", desc.bNumConfigurations);
- /* if device is shared with another driver, such as the Z-10 speakers sharing with alsa, we have to disable some calls */
- if(g15DeviceCapabilities() & G15_DEVICE_IS_SHARED)
- shared_device = 1;
+
+ /* if device is shared with another driver, such as the Z-10 speakers sharing with alsa, we have to disable some calls */
+ if(g15DeviceCapabilities() & G15_DEVICE_IS_SHARED)
+ shared_device = 1;
- for (j = 0; j<dev->descriptor.bNumConfigurations;j++){
- struct usb_config_descriptor *cfg = &dev->config[j];
+
+ for (int j = 0; j < desc.bNumConfigurations; j++)
+ {
+ struct libusb_config_descriptor *cfg;
+ if (libusb_get_config_descriptor(dev, j, &cfg)) continue;
+
- g15_log(stderr, G15_LOG_INFO, "Device has %i possible configurations\n",dev->descriptor.bNumConfigurations);
+ for (int i = 0; i < cfg->bNumInterfaces; i++)
+ {
+ if (g15DeviceCapabilities() & G15_DEVICE_G510)
@@ -224,15 +224,17 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
+ if (i==G510_STANDARD_KEYBOARD_INTERFACE) continue;
+ }
- for (i=0;i<cfg->bNumInterfaces; i++){
- if (g15DeviceCapabilities()&G15_DEVICE_G510){
- if (i==G510_STANDARD_KEYBOARD_INTERFACE) continue;
- /* if device is shared with another driver, such as the Z-10 speakers sharing with alsa, we have to disable some calls */
- if(g15DeviceCapabilities() & G15_DEVICE_IS_SHARED)
- shared_device = 1;
+ const struct libusb_interface *ifp = &cfg->interface[i];
+ /* if endpoints are already known, finish up */
+ if (g15_keys_endpoint && g15_lcd_endpoint)
+ break;
+ g15_log(stderr, G15_LOG_INFO, "Device has %i Alternate Settings\n", ifp->num_altsetting);
+
- for (j = 0; j<dev->descriptor.bNumConfigurations;j++){
- struct usb_config_descriptor *cfg = &dev->config[j];
+ for (int k=0; k < ifp->num_altsetting; k++)
+ {
+ const struct libusb_interface_descriptor *as = &ifp->altsetting[k];
@@ -241,7 +243,10 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
+ {
+ g15_log(stderr, G15_LOG_INFO, "Interface %i has %i Endpoints\n", i, as->bNumEndpoints);
+ usleep(50*1000);
+
- for (i=0;i<cfg->bNumInterfaces; i++){
- if (g15DeviceCapabilities()&G15_DEVICE_G510){
- if (i==G510_STANDARD_KEYBOARD_INTERFACE) continue;
+ if (libusb_kernel_driver_active(devh, i) == 1)
+ {
+ g15_log(stderr, G15_LOG_INFO, "Trying to detach driver currently attached.\n");
@@ -409,7 +414,7 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
int i;
for (i=0; g15_devices[i].name !=NULL ;i++){
g15_log(stderr,G15_LOG_INFO,"Trying to find %s\n",g15_devices[i].name);
@@ -288,19 +303,13 @@
@@ -288,19 +309,13 @@
{
int retval = G15_NO_ERROR;
@@ -434,7 +439,7 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
keyboard_device=0;
return retval;
}
@@ -311,9 +320,6 @@
@@ -311,9 +326,6 @@
{
closeKeyboardDevice();
@@ -444,7 +449,7 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
keyboard_device = findAndOpenG15();
if (!keyboard_device)
return G15_ERROR_OPENING_USB_DEVICE;
@@ -330,10 +336,6 @@
@@ -330,10 +342,6 @@
g15_log(stderr,G15_LOG_INFO,"%s\n",PACKAGE_STRING);
@@ -455,7 +460,18 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
g15NumberOfConnectedDevices();
keyboard_device = findAndOpenG15();
@@ -428,36 +430,6 @@
@@ -347,7 +355,9 @@
int exitLibG15()
{
pthread_mutex_destroy(&libusb_mutex);
- return closeKeyboardDevice();
+ int ret = closeKeyboardDevice();
+ libusb_exit(NULL);
+ libusb_initialized = 0;
}
static void dumpPixmapIntoLCDFormat(unsigned char *lcd_buffer, unsigned char const *data)
@@ -428,36 +438,6 @@
}
}
@@ -492,7 +508,7 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
int writePixmapToLCD(unsigned char const *data)
{
int ret = 0;
@@ -474,43 +446,27 @@
@@ -474,43 +454,27 @@
/* the keyboard needs this magic byte */
lcd_buffer[0] = 0x03;
@@ -554,7 +570,7 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
return 0;
}
@@ -535,7 +491,9 @@
@@ -535,7 +499,9 @@
usb_data[3] = 18;
}
pthread_mutex_lock(&libusb_mutex);
@@ -565,7 +581,7 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
pthread_mutex_unlock(&libusb_mutex);
return retval;
}
@@ -553,7 +511,9 @@
@@ -553,7 +519,9 @@
return G15_ERROR_UNSUPPORTED;
pthread_mutex_lock(&libusb_mutex);
@@ -576,7 +592,7 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
pthread_mutex_unlock(&libusb_mutex);
return retval;
}
@@ -578,7 +538,9 @@
@@ -578,7 +546,9 @@
usb_data[2] = 0x00;
}
pthread_mutex_lock(&libusb_mutex);
@@ -587,7 +603,7 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
pthread_mutex_unlock(&libusb_mutex);
return retval;
}
@@ -604,7 +566,9 @@
@@ -604,7 +574,9 @@
usb_data[2] = 0x0;
}
pthread_mutex_lock(&libusb_mutex);
@@ -598,7 +614,7 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
pthread_mutex_unlock(&libusb_mutex);
return retval;
}
@@ -619,7 +583,9 @@
@@ -619,7 +591,9 @@
usb_data[3] = b;
pthread_mutex_lock(&libusb_mutex);
@@ -609,7 +625,7 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
pthread_mutex_unlock(&libusb_mutex);
return retval;
}
@@ -1033,18 +999,30 @@
@@ -1033,18 +1007,30 @@
int getPressedKeys(unsigned int *pressed_keys, unsigned int timeout)
{
unsigned char buffer[G15_KEY_READ_LENGTH];
@@ -647,7 +663,7 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
return G15_ERROR_TRY_AGAIN;
}
@@ -1054,7 +1032,7 @@
@@ -1054,7 +1040,7 @@
return G15_NO_ERROR;
}
@@ -656,7 +672,7 @@ Subject: Migrate from legacy libusb-0.1 to libusb-1.0
case 4:
processKeyEvent4Byte(pressed_keys, buffer);
return G15_NO_ERROR;
@@ -1065,6 +1043,6 @@
@@ -1065,6 +1051,6 @@
processKeyEvent9Byte(pressed_keys, buffer);
return G15_NO_ERROR;
default: