Re: [PATCHv2 3/6] android: Add basic mgmt initialization sequence

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Szymon,

On Wed, Oct 16, 2013 at 02:03:54PM +0200, Szymon Janc wrote:
> Hi Andrei,
> 
> > From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
> > 
> > Initialize bluetooth controller via mgmt interface.
> > ---
> >  Makefile.android   |    4 +-
> >  android/Android.mk |    5 ++
> >  android/main.c     |  168 ++++++++++++++++++++++++++++++++++++++++++++++++++++
> >  3 files changed, 176 insertions(+), 1 deletion(-)
> > 
> > diff --git a/Makefile.android b/Makefile.android
> > index 3ceefd8..7371a77 100644
> > --- a/Makefile.android
> > +++ b/Makefile.android
> > @@ -1,7 +1,9 @@
> >  if ANDROID
> >  noinst_PROGRAMS += android/bluetoothd
> >  
> > -android_bluetoothd_SOURCES = android/main.c src/log.c
> > +android_bluetoothd_SOURCES = android/main.c src/log.c \
> > +				src/shared/util.h src/shared/util.c \
> > +				src/shared/mgmt.h src/shared/mgmt.c
> >  android_bluetoothd_LDADD = @GLIB_LIBS@
> >  endif
> >  
> > diff --git a/android/Android.mk b/android/Android.mk
> > index 0e025ac..4996080 100644
> > --- a/android/Android.mk
> > +++ b/android/Android.mk
> > @@ -15,10 +15,15 @@ include $(CLEAR_VARS)
> >  LOCAL_SRC_FILES := \
> >  	main.c \
> >  	log.c \
> > +	../src/shared/mgmt.c \
> > +	../src/shared/util.c \
> >  
> >  LOCAL_C_INCLUDES := \
> >  	$(call include-path-for, glib) \
> >  	$(call include-path-for, glib)/glib \
> > +
> > +LOCAL_C_INCLUDES += \
> > +	$(LOCAL_PATH)/../ \
> >  	$(LOCAL_PATH)/../src \
> >  
> >  LOCAL_CFLAGS := -DVERSION=\"$(BLUEZ_VERSION)\"
> > diff --git a/android/main.c b/android/main.c
> > index f75b0a8..ba25b84 100644
> > --- a/android/main.c
> > +++ b/android/main.c
> > @@ -25,6 +25,7 @@
> >  #include <config.h>
> >  #endif
> >  
> > +#include <stdbool.h>
> >  #include <signal.h>
> >  #include <stdint.h>
> >  #include <stdio.h>
> > @@ -36,9 +37,17 @@
> >  
> >  #include "log.h"
> >  
> > +#include "lib/bluetooth.h"
> > +#include "lib/mgmt.h"
> > +#include "src/shared/mgmt.h"
> > +
> >  #define SHUTDOWN_GRACE_SECONDS 10
> >  
> >  static GMainLoop *event_loop;
> > +static struct mgmt *mgmt_if = NULL;
> > +
> > +static uint8_t mgmt_version = 0;
> > +static uint8_t mgmt_revision = 0;
> >  
> >  static gboolean quit_eventloop(gpointer user_data)
> >  {
> > @@ -67,6 +76,161 @@ static GOptionEntry options[] = {
> >  	{ NULL }
> >  };
> >  
> > +static void read_info_complete(uint8_t status, uint16_t length,
> > +					const void *param, void *user_data)
> > +{
> > +	/* TODO: Store Controller information */
> > +
> > +	/* TODO: Register all event notification handlers */
> > +}
> > +
> > +
> > +static void mgmt_index_added_event(uint16_t index, uint16_t length,
> > +					const void *param, void *user_data)
> > +{
> > +	DBG("index %u", index);
> > +
> > +	if (mgmt_send(mgmt_if, MGMT_OP_READ_INFO, index, 0, NULL,
> > +					read_info_complete, NULL, NULL) > 0)
> > +		return;
> > +
> > +	error("Failed to read adapter info for index %u", index);
> > +
> > +}
> > +
> > +static void mgmt_index_removed_event(uint16_t index, uint16_t length,
> > +					const void *param, void *user_data)
> > +{
> > +	DBG("index %u", index);
> > +}
> > +
> > +static void read_index_list_complete(uint8_t status, uint16_t length,
> > +					const void *param, void *user_data)
> > +{
> > +	const struct mgmt_rp_read_index_list *rp = param;
> > +	uint16_t num;
> > +	int i;
> > +
> > +	info(__func__);
> > +
> > +	if (!status) {
> > +		error("%s: Failed to read index list: %s (0x%02x)",
> > +					__func__, mgmt_errstr(status), status);
> > +		return;
> > +	}
> > +
> > +	if (length < sizeof(*rp)) {
> > +		error("%s: Wrong size of read index list response", __func__);
> > +		return;
> > +	}
> > +
> > +	num = btohs(rp->num_controllers);
> > +
> > +	DBG("%s: Number of controllers: %u", __func__, num);
> > +
> > +	if (num * sizeof(uint16_t) + sizeof(*rp) != length) {
> > +		error("%s: Incorrect pkt size for index list rsp", __func__);
> > +		return;
> > +	}
> > +
> > +	for (i = 0; i < num; i++) {
> > +		uint16_t index;
> > +
> > +		index = btohs(rp->index[i]);
> > +
> > +		/**
> > +		 * Use index added event notification.
> > +		 */
> > +		mgmt_index_added_event(index, 0, NULL, NULL);
> > +	}
> > +}
> > +
> > +static void read_commands_complete(uint8_t status, uint16_t length,
> > +					const void *param, void *user_data)
> > +{
> > +	const struct mgmt_rp_read_commands *rp = param;
> > +
> > +	DBG("");
> > +
> > +	if (!status) {
> > +		error("Failed to read supported commands: %s (0x%02x)",
> > +						mgmt_errstr(status), status);
> > +		return;
> > +	}
> 
> This will always fail... I would use explicit comparison to MGMT status code
> if (status != MGMT_STATUS_SUCCESS) { ... }

Yes, sorry this was automatic style change :( I just check for status
then.

Best regards 
Andrei Emeltchenko 

> 
> > +
> > +	if (length < sizeof(*rp)) {
> > +		error("Wrong size response");
> > +		return;
> > +	}
> > +}
> > +
> > +static void read_version_complete(uint8_t status, uint16_t length,
> > +					const void *param, void *user_data)
> > +{
> > +	const struct mgmt_rp_read_version *rp = param;
> > +
> > +	DBG("");
> > +
> > +	if (!status) {
> > +		error("Failed to read version information: %s (0x%02x)",
> > +						mgmt_errstr(status), status);
> > +		return;
> > +	}
> 
> Ditto.
> 
> > +
> > +	if (length < sizeof(*rp)) {
> > +		error("Wrong size response");
> > +		return;
> > +	}
> > +
> > +	mgmt_version = rp->version;
> > +	mgmt_revision = btohs(rp->revision);
> > +
> > +	info("Bluetooth management interface %u.%u initialized",
> > +						mgmt_version, mgmt_revision);
> > +
> > +	if (mgmt_version < 1) {
> > +		error("Version 1.0 or later of management interface required");
> > +		abort();
> > +	}
> > +
> > +	mgmt_send(mgmt_if, MGMT_OP_READ_COMMANDS, MGMT_INDEX_NONE, 0, NULL,
> > +					read_commands_complete, NULL, NULL);
> > +
> > +	mgmt_register(mgmt_if, MGMT_EV_INDEX_ADDED, MGMT_INDEX_NONE,
> > +					mgmt_index_added_event, NULL, NULL);
> > +	mgmt_register(mgmt_if, MGMT_EV_INDEX_REMOVED, MGMT_INDEX_NONE,
> > +					mgmt_index_removed_event, NULL, NULL);
> > +
> > +	if (mgmt_send(mgmt_if, MGMT_OP_READ_INDEX_LIST, MGMT_INDEX_NONE, 0,
> > +			NULL, read_index_list_complete, NULL, NULL) > 0)
> > +		return;
> > +
> > +	error("Failed to read controller index list");
> > +}
> > +
> > +static bool init_mgmt_interface(void)
> > +{
> > +	mgmt_if = mgmt_new_default();
> > +	if (!mgmt_if) {
> > +		error("Failed to access management interface");
> > +		return false;
> > +	}
> > +
> > +	if (mgmt_send(mgmt_if, MGMT_OP_READ_VERSION, MGMT_INDEX_NONE, 0, NULL,
> > +				read_version_complete, NULL, NULL) == 0) {
> > +		error("Error sending READ_VERSION mgmt command");
> > +		return false;
> > +	}
> > +
> > +	return true;
> > +}
> > +
> > +static void cleanup_mgmt_interface(void)
> > +{
> > +	mgmt_unref(mgmt_if);
> > +	mgmt_if = NULL;
> > +}
> > +
> >  int main(int argc, char *argv[])
> >  {
> >  	GOptionContext *context;
> > @@ -100,10 +264,14 @@ int main(int argc, char *argv[])
> >  	sigaction(SIGINT, &sa, NULL);
> >  	sigaction(SIGTERM, &sa, NULL);
> >  
> > +	if (!init_mgmt_interface())
> > +		return EXIT_FAILURE;
> > +
> >  	DBG("Entering main loop");
> >  
> >  	g_main_loop_run(event_loop);
> >  
> > +	cleanup_mgmt_interface();
> >  	g_main_loop_unref(event_loop);
> >  
> >  	info("Exit");
> > 
> 
> -- 
> BR
> Szymon Janc
> 
--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Bluez Devel]     [Linux Wireless Networking]     [Linux Wireless Personal Area Networking]     [Linux ATH6KL]     [Linux USB Devel]     [Linux Media Drivers]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Big List of Linux Books]

  Powered by Linux