objects/flasher_obj.c - openbmc/skeleton - Gitiles

 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <fcntl.h>
 #include <sys/mman.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
 #include <byteswap.h>
 #include <stdint.h>
 #include <stdbool.h>
 #include <getopt.h>
 #include <limits.h>
 #include <arpa/inet.h>
 #include <assert.h>

 #include <libflash/libflash.h>
 #include <libflash/libffs.h>
 #include "progress.h"
 #include "io.h"
 #include "ast.h"
 #include "sfc-ctrl.h"
 #include "interfaces/openbmc_intf.h"
 #include "includes/openbmc.h"

 static const gchar* dbus_object_path = "/org/openbmc/control";
 static const gchar* dbus_name = "org.openbmc.control.Flasher";

 static GDBusObjectManagerServer *manager = NULL;

 #define __aligned(x)			__attribute__((aligned(x)))

 #define PFLASH_VERSION	"0.8.6"

 static bool need_relock;
 #ifdef __powerpc__
 static bool using_sfc;
 #endif

 #define FILE_BUF_SIZE	0x10000
 static uint8_t file_buf[FILE_BUF_SIZE] __aligned(0x1000);

 static struct spi_flash_ctrl	*fl_ctrl;
 static struct flash_chip	*fl_chip;
 static struct ffs_handle	*ffsh;
 static uint32_t			fl_total_size, fl_erase_granule;
 static const char		*fl_name;
 static int32_t			ffs_index = -1;

 static uint8_t FLASH_OK = 0;
 static uint8_t FLASH_ERROR = 0x01;
 static uint8_t FLASH_SETUP_ERROR = 0x02;

 static int
 erase_chip(void)
 {
 	int rc = 0;

 	printf("Erasing... (may take a while !) ");
 	fflush(stdout);

 	rc = flash_erase_chip(fl_chip);
 	if(rc) {
 		fprintf(stderr, "Error %d erasing chip\n", rc);
 		return(rc);
 	}

 	printf("done !\n");
 	return(rc);
 }

 void
 flash_message(GDBusConnection* connection,char* obj_path,char* method, char* error_msg)
 {
 	GDBusProxy *proxy;
 	GError *error;
 	GVariant *parm = NULL;
 	error = NULL;
 	proxy = g_dbus_proxy_new_sync(connection,
 			G_DBUS_PROXY_FLAGS_NONE,
 			NULL, /* GDBusInterfaceInfo* */
 			"org.openbmc.control.Flash", /* name */
 			obj_path, /* object path */
 			"org.openbmc.Flash", /* interface name */
 			NULL, /* GCancellable */
 			&error);
 	g_assert_no_error(error);

 	error = NULL;
 	if(strcmp(method,"error")==0) {
 		parm = g_variant_new("(s)",error_msg);
 	}
 	g_dbus_proxy_call_sync(proxy,
 			method,
 			parm,
 			G_DBUS_CALL_FLAGS_NONE,
 			-1,
 			NULL,
 			&error);

 	g_assert_no_error(error);
 }

 static int
 program_file(FlashControl* flash_control, const char *file, uint32_t start, uint32_t size)
 {
 	int fd, rc;
 	ssize_t len;
 	uint32_t actual_size = 0;

 	fd = open(file, O_RDONLY);
 	if(fd == -1) {
 		perror("Failed to open file");
 		return(fd);
 	}
 	printf("About to program \"%s\" at 0x%08x..0x%08x !\n",
 			file, start, size);

 	printf("Programming & Verifying...\n");
 	//progress_init(size >> 8);
 	unsigned int save_size = size;
 	uint8_t last_progress = 0;
 	while(size) {
 		len = read(fd, file_buf, FILE_BUF_SIZE);
 		if(len < 0) {
 			perror("Error reading file");
 			return(1);
 		}
 		if(len == 0)
 			break;
 		if(len > size)
 			len = size;
 		size -= len;
 		actual_size += len;
 		rc = flash_write(fl_chip, start, file_buf, len, true);
 		if(rc) {
 			if(rc == FLASH_ERR_VERIFY_FAILURE)
 				fprintf(stderr, "Verification failed for"
 						" chunk at 0x%08x\n", start);
 			else
 				fprintf(stderr, "Flash write error %d for"
 						" chunk at 0x%08x\n", rc, start);
 			return(rc);
 		}
 		start += len;
 		unsigned int percent = (100*actual_size/save_size);
 		uint8_t progress = (uint8_t)(percent);
 		if(progress != last_progress) {
 			flash_control_emit_progress(flash_control,file,progress);
 			last_progress = progress;
 		}
 	}
 	close(fd);

 	/* If this is a flash partition, adjust its size */
 	if(ffsh && ffs_index >= 0) {
 		printf("Updating actual size in partition header...\n");
 		ffs_update_act_size(ffsh, ffs_index, actual_size);
 	}
 	return(0);
 }

 static void
 flash_access_cleanup_bmc(void)
 {
 	if(ffsh)
 		ffs_close(ffsh);
 	flash_exit(fl_chip);
 	ast_sf_close(fl_ctrl);
 	close_devs();
 }

 static int
 flash_access_setup_bmc(bool use_lpc, bool need_write)
 {
 	int rc;
 	printf("Setting up BMC flash\n");
 	/* Open and map devices */
 	open_devs(use_lpc, true);

 	/* Create the AST flash controller */
 	rc = ast_sf_open(AST_SF_TYPE_BMC, &fl_ctrl);
 	if(rc) {
 		fprintf(stderr, "Failed to open controller\n");
 		return FLASH_SETUP_ERROR;
 	}

 	/* Open flash chip */
 	rc = flash_init(fl_ctrl, &fl_chip);
 	if(rc) {
 		fprintf(stderr, "Failed to open flash chip\n");
 		return FLASH_SETUP_ERROR;
 	}

 	/* Setup cleanup function */
 	atexit(flash_access_cleanup_bmc);
 	return FLASH_OK;
 }

 static void
 flash_access_cleanup_pnor(void)
 {
 	/* Re-lock flash */
 	if(need_relock)
 		set_wrprotect(true);

 	if(ffsh)
 		ffs_close(ffsh);
 	flash_exit(fl_chip);
 #ifdef __powerpc__
 	if(using_sfc)
 		sfc_close(fl_ctrl);
 	else
 		ast_sf_close(fl_ctrl);
 #else
 	ast_sf_close(fl_ctrl);
 #endif
 	close_devs();
 }

 static int
 flash_access_setup_pnor(bool use_lpc, bool use_sfc, bool need_write)
 {
 	int rc;
 	printf("Setting up BIOS flash\n");

 	/* Open and map devices */
 	open_devs(use_lpc, false);

 #ifdef __powerpc__
 	if(use_sfc) {
 		/* Create the SFC flash controller */
 		rc = sfc_open(&fl_ctrl);
 		if(rc) {
 			fprintf(stderr, "Failed to open controller\n");
 			return FLASH_SETUP_ERROR;
 		}
 		using_sfc = true;
 	} else {
 #endif
 		/* Create the AST flash controller */
 		rc = ast_sf_open(AST_SF_TYPE_PNOR, &fl_ctrl);
 		if(rc) {
 			fprintf(stderr, "Failed to open controller\n");
 			return FLASH_SETUP_ERROR;
 		}
 #ifdef __powerpc__
 	}
 #endif

 	/* Open flash chip */
 	rc = flash_init(fl_ctrl, &fl_chip);
 	if(rc) {
 		fprintf(stderr, "Failed to open flash chip\n");
 		return FLASH_SETUP_ERROR;
 	}

 	/* Unlock flash (PNOR only) */
 	if(need_write)
 		need_relock = set_wrprotect(false);

 	/* Setup cleanup function */
 	atexit(flash_access_cleanup_pnor);
 	return FLASH_OK;
 }

 uint8_t
 flash(FlashControl* flash_control,bool bmc_flash, uint32_t address, char* write_file, char* obj_path)
 {
 	bool has_sfc = false, has_ast = false, use_lpc = true;
 	bool erase = true, program = true;

 	int rc;
 	printf("flasher: %s, BMC = %d, address = 0x%x\n",write_file,bmc_flash,address);
 #ifdef __arm__
 	/* Check platform */
 	check_platform(&has_sfc, &has_ast);

 	/* Prepare for access */
 	if(bmc_flash) {
 		if(!has_ast) {
 			fprintf(stderr, "No BMC on this platform\n");
 			return FLASH_SETUP_ERROR;
 		}
 		rc = flash_access_setup_bmc(use_lpc, erase || program);
 		if(rc) {
 			return FLASH_SETUP_ERROR;
 		}
 	} else {
 		if(!has_ast && !has_sfc) {
 			fprintf(stderr, "No BMC nor SFC on this platform\n");
 			return FLASH_SETUP_ERROR;
 		}
 		rc = flash_access_setup_pnor(use_lpc, has_sfc, erase || program);
 		if(rc) {
 			return FLASH_SETUP_ERROR;
 		}
 	}

 	rc = flash_get_info(fl_chip, &fl_name,
 			&fl_total_size, &fl_erase_granule);
 	if(rc) {
 		fprintf(stderr, "Error %d getting flash info\n", rc);
 		return FLASH_SETUP_ERROR;
 	}
 #endif
 	if(strcmp(write_file,"")!=0)
 	{
 		// If file specified but not size, get size from file
 		struct stat stbuf;
 		if(stat(write_file, &stbuf)) {
 			perror("Failed to get file size");
 			return FLASH_ERROR;
 		}
 		uint32_t write_size = stbuf.st_size;
 #ifdef __arm__
 		rc = erase_chip();
 		if(rc) {
 			return FLASH_ERROR;
 		}
 		rc = program_file(flash_control, write_file, address, write_size);
 		if(rc) {
 			return FLASH_ERROR;
 		}
 #endif

 		printf("Flash done\n");
 	}
 	else
 	{
 		printf("Flash tuned\n");
 	}
 	return FLASH_OK;
 }

 static void
 on_bus_acquired(GDBusConnection *connection,
 		const gchar *name,
 		gpointer user_data)
 {
 	cmdline *cmd = user_data;
 	if(cmd->argc < 4)
 	{
 		g_print("flasher [flash name] [filename] [source object]\n");
 		g_main_loop_quit(cmd->loop);
 		return;
 	}
 	printf("Starting flasher: %s,%s,%s,\n",cmd->argv[1],cmd->argv[2],cmd->argv[3]);
 	ObjectSkeleton *object;
 	manager = g_dbus_object_manager_server_new(dbus_object_path);
 	gchar *s;
 	s = g_strdup_printf("%s/%s",dbus_object_path,cmd->argv[1]);

 	object = object_skeleton_new(s);
 	g_free(s);

 	FlashControl* flash_control = flash_control_skeleton_new();
 	object_skeleton_set_flash_control(object, flash_control);
 	g_object_unref(flash_control);

 	/* Export the object (@manager takes its own reference to @object) */
 	g_dbus_object_manager_server_export(manager, G_DBUS_OBJECT_SKELETON(object));
 	g_object_unref(object);

 	/* Export all objects */
 	g_dbus_object_manager_server_set_connection(manager, connection);
 	bool bmc_flash = false;
 	uint32_t address = 0;
 	if(strcmp(cmd->argv[1],"bmc")==0) {
 		bmc_flash = true;
 	}
 	if(strcmp(cmd->argv[1],"bmc_ramdisk")==0) {
 		bmc_flash = true;
 		address = 0x20300000;
 	}
 	if(strcmp(cmd->argv[1],"bmc_kernel")==0) {
 		bmc_flash = true;
 		address = 0x20080000;
 	}

 	int rc = flash(flash_control,bmc_flash,address,cmd->argv[2],cmd->argv[3]);
 	if(rc) {
 		flash_message(connection,cmd->argv[3],"error","Flash Error");
 	} else {
 		flash_message(connection,cmd->argv[3],"done","");
 	}

 	//Object exits when done flashing
 	g_main_loop_quit(cmd->loop);
 }

 int
 main(int argc, char *argv[])
 {
 	GMainLoop *loop;
 	cmdline cmd;
 	cmd.argc = argc;
 	cmd.argv = argv;

 	guint id;
 	loop = g_main_loop_new(NULL, FALSE);
 	cmd.loop = loop;

 	id = g_bus_own_name(DBUS_TYPE,
 			dbus_name,
 			G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT |
 			G_BUS_NAME_OWNER_FLAGS_REPLACE,
 			on_bus_acquired,
 			NULL,
 			NULL,
 			&cmd,
 			NULL);

 	g_main_loop_run(loop);

 	g_bus_unown_name(id);
 	g_main_loop_unref(loop);

 	return 0;
 }
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <fcntl.h>
	#include <sys/mman.h>
	#include <sys/types.h>
	#include <sys/stat.h>
	#include <unistd.h>
	#include <byteswap.h>
	#include <stdint.h>
	#include <stdbool.h>
	#include <getopt.h>
	#include <limits.h>
	#include <arpa/inet.h>
	#include <assert.h>

	#include <libflash/libflash.h>
	#include <libflash/libffs.h>
	#include "progress.h"
	#include "io.h"
	#include "ast.h"
	#include "sfc-ctrl.h"
	#include "interfaces/openbmc_intf.h"
	#include "includes/openbmc.h"

	static const gchar* dbus_object_path = "/org/openbmc/control";
	static const gchar* dbus_name = "org.openbmc.control.Flasher";

	static GDBusObjectManagerServer *manager = NULL;

	#define __aligned(x) __attribute__((aligned(x)))

	#define PFLASH_VERSION "0.8.6"

	static bool need_relock;
	#ifdef __powerpc__
	static bool using_sfc;
	#endif

	#define FILE_BUF_SIZE 0x10000
	static uint8_t file_buf[FILE_BUF_SIZE] __aligned(0x1000);

	static struct spi_flash_ctrl *fl_ctrl;
	static struct flash_chip *fl_chip;
	static struct ffs_handle *ffsh;
	static uint32_t fl_total_size, fl_erase_granule;
	static const char *fl_name;
	static int32_t ffs_index = -1;

	static uint8_t FLASH_OK = 0;
	static uint8_t FLASH_ERROR = 0x01;
	static uint8_t FLASH_SETUP_ERROR = 0x02;

	static int
	erase_chip(void)
	{
	int rc = 0;

	printf("Erasing... (may take a while !) ");
	fflush(stdout);

	rc = flash_erase_chip(fl_chip);
	if(rc) {
	fprintf(stderr, "Error %d erasing chip\n", rc);
	return(rc);
	}

	printf("done !\n");
	return(rc);
	}

	void
	flash_message(GDBusConnection* connection,char* obj_path,char* method, char* error_msg)
	{
	GDBusProxy *proxy;
	GError *error;
	GVariant *parm = NULL;
	error = NULL;
	proxy = g_dbus_proxy_new_sync(connection,
	G_DBUS_PROXY_FLAGS_NONE,
	NULL, /* GDBusInterfaceInfo* */
	"org.openbmc.control.Flash", /* name */
	obj_path, /* object path */
	"org.openbmc.Flash", /* interface name */
	NULL, /* GCancellable */
	&error);
	g_assert_no_error(error);

	error = NULL;
	if(strcmp(method,"error")==0) {
	parm = g_variant_new("(s)",error_msg);
	}
	g_dbus_proxy_call_sync(proxy,
	method,
	parm,
	G_DBUS_CALL_FLAGS_NONE,
	-1,
	NULL,
	&error);

	g_assert_no_error(error);
	}

	static int
	program_file(FlashControl* flash_control, const char *file, uint32_t start, uint32_t size)
	{
	int fd, rc;
	ssize_t len;
	uint32_t actual_size = 0;

	fd = open(file, O_RDONLY);
	if(fd == -1) {
	perror("Failed to open file");
	return(fd);
	}
	printf("About to program \"%s\" at 0x%08x..0x%08x !\n",
	file, start, size);

	printf("Programming & Verifying...\n");
	//progress_init(size >> 8);
	unsigned int save_size = size;
	uint8_t last_progress = 0;
	while(size) {
	len = read(fd, file_buf, FILE_BUF_SIZE);
	if(len < 0) {
	perror("Error reading file");
	return(1);
	}
	if(len == 0)
	break;
	if(len > size)
	len = size;
	size -= len;
	actual_size += len;
	rc = flash_write(fl_chip, start, file_buf, len, true);
	if(rc) {
	if(rc == FLASH_ERR_VERIFY_FAILURE)
	fprintf(stderr, "Verification failed for"
	" chunk at 0x%08x\n", start);
	else
	fprintf(stderr, "Flash write error %d for"
	" chunk at 0x%08x\n", rc, start);
	return(rc);
	}
	start += len;
	unsigned int percent = (100*actual_size/save_size);
	uint8_t progress = (uint8_t)(percent);
	if(progress != last_progress) {
	flash_control_emit_progress(flash_control,file,progress);
	last_progress = progress;
	}
	}
	close(fd);

	/* If this is a flash partition, adjust its size */
	if(ffsh && ffs_index >= 0) {
	printf("Updating actual size in partition header...\n");
	ffs_update_act_size(ffsh, ffs_index, actual_size);
	}
	return(0);
	}

	static void
	flash_access_cleanup_bmc(void)
	{
	if(ffsh)
	ffs_close(ffsh);
	flash_exit(fl_chip);
	ast_sf_close(fl_ctrl);
	close_devs();
	}

	static int
	flash_access_setup_bmc(bool use_lpc, bool need_write)
	{
	int rc;
	printf("Setting up BMC flash\n");
	/* Open and map devices */
	open_devs(use_lpc, true);

	/* Create the AST flash controller */
	rc = ast_sf_open(AST_SF_TYPE_BMC, &fl_ctrl);
	if(rc) {
	fprintf(stderr, "Failed to open controller\n");
	return FLASH_SETUP_ERROR;
	}

	/* Open flash chip */
	rc = flash_init(fl_ctrl, &fl_chip);
	if(rc) {
	fprintf(stderr, "Failed to open flash chip\n");
	return FLASH_SETUP_ERROR;
	}

	/* Setup cleanup function */
	atexit(flash_access_cleanup_bmc);
	return FLASH_OK;
	}

	static void
	flash_access_cleanup_pnor(void)
	{
	/* Re-lock flash */
	if(need_relock)
	set_wrprotect(true);

	if(ffsh)
	ffs_close(ffsh);
	flash_exit(fl_chip);
	#ifdef __powerpc__
	if(using_sfc)
	sfc_close(fl_ctrl);
	else
	ast_sf_close(fl_ctrl);
	#else
	ast_sf_close(fl_ctrl);
	#endif
	close_devs();
	}

	static int
	flash_access_setup_pnor(bool use_lpc, bool use_sfc, bool need_write)
	{
	int rc;
	printf("Setting up BIOS flash\n");

	/* Open and map devices */
	open_devs(use_lpc, false);

	#ifdef __powerpc__
	if(use_sfc) {
	/* Create the SFC flash controller */
	rc = sfc_open(&fl_ctrl);
	if(rc) {
	fprintf(stderr, "Failed to open controller\n");
	return FLASH_SETUP_ERROR;
	}
	using_sfc = true;
	} else {
	#endif
	/* Create the AST flash controller */
	rc = ast_sf_open(AST_SF_TYPE_PNOR, &fl_ctrl);
	if(rc) {
	fprintf(stderr, "Failed to open controller\n");
	return FLASH_SETUP_ERROR;
	}
	#ifdef __powerpc__
	}
	#endif

	/* Open flash chip */
	rc = flash_init(fl_ctrl, &fl_chip);
	if(rc) {
	fprintf(stderr, "Failed to open flash chip\n");
	return FLASH_SETUP_ERROR;
	}

	/* Unlock flash (PNOR only) */
	if(need_write)
	need_relock = set_wrprotect(false);

	/* Setup cleanup function */
	atexit(flash_access_cleanup_pnor);
	return FLASH_OK;
	}

	uint8_t
	flash(FlashControl* flash_control,bool bmc_flash, uint32_t address, char* write_file, char* obj_path)
	{
	bool has_sfc = false, has_ast = false, use_lpc = true;
	bool erase = true, program = true;

	int rc;
	printf("flasher: %s, BMC = %d, address = 0x%x\n",write_file,bmc_flash,address);
	#ifdef __arm__
	/* Check platform */
	check_platform(&has_sfc, &has_ast);

	/* Prepare for access */
	if(bmc_flash) {
	if(!has_ast) {
	fprintf(stderr, "No BMC on this platform\n");
	return FLASH_SETUP_ERROR;
	}
	rc = flash_access_setup_bmc(use_lpc, erase \|\| program);
	if(rc) {
	return FLASH_SETUP_ERROR;
	}
	} else {
	if(!has_ast && !has_sfc) {
	fprintf(stderr, "No BMC nor SFC on this platform\n");
	return FLASH_SETUP_ERROR;
	}
	rc = flash_access_setup_pnor(use_lpc, has_sfc, erase \|\| program);
	if(rc) {
	return FLASH_SETUP_ERROR;
	}
	}

	rc = flash_get_info(fl_chip, &fl_name,
	&fl_total_size, &fl_erase_granule);
	if(rc) {
	fprintf(stderr, "Error %d getting flash info\n", rc);
	return FLASH_SETUP_ERROR;
	}
	#endif
	if(strcmp(write_file,"")!=0)
	{
	// If file specified but not size, get size from file
	struct stat stbuf;
	if(stat(write_file, &stbuf)) {
	perror("Failed to get file size");
	return FLASH_ERROR;
	}
	uint32_t write_size = stbuf.st_size;
	#ifdef __arm__
	rc = erase_chip();
	if(rc) {
	return FLASH_ERROR;
	}
	rc = program_file(flash_control, write_file, address, write_size);
	if(rc) {
	return FLASH_ERROR;
	}
	#endif

	printf("Flash done\n");
	}
	else
	{
	printf("Flash tuned\n");
	}
	return FLASH_OK;
	}

	static void
	on_bus_acquired(GDBusConnection *connection,
	const gchar *name,
	gpointer user_data)
	{
	cmdline *cmd = user_data;
	if(cmd->argc < 4)
	{
	g_print("flasher [flash name] [filename] [source object]\n");
	g_main_loop_quit(cmd->loop);
	return;
	}
	printf("Starting flasher: %s,%s,%s,\n",cmd->argv[1],cmd->argv[2],cmd->argv[3]);
	ObjectSkeleton *object;
	manager = g_dbus_object_manager_server_new(dbus_object_path);
	gchar *s;
	s = g_strdup_printf("%s/%s",dbus_object_path,cmd->argv[1]);

	object = object_skeleton_new(s);
	g_free(s);

	FlashControl* flash_control = flash_control_skeleton_new();
	object_skeleton_set_flash_control(object, flash_control);
	g_object_unref(flash_control);

	/* Export the object (@manager takes its own reference to @object) */
	g_dbus_object_manager_server_export(manager, G_DBUS_OBJECT_SKELETON(object));
	g_object_unref(object);

	/* Export all objects */
	g_dbus_object_manager_server_set_connection(manager, connection);
	bool bmc_flash = false;
	uint32_t address = 0;
	if(strcmp(cmd->argv[1],"bmc")==0) {
	bmc_flash = true;
	}
	if(strcmp(cmd->argv[1],"bmc_ramdisk")==0) {
	bmc_flash = true;
	address = 0x20300000;
	}
	if(strcmp(cmd->argv[1],"bmc_kernel")==0) {
	bmc_flash = true;
	address = 0x20080000;
	}

	int rc = flash(flash_control,bmc_flash,address,cmd->argv[2],cmd->argv[3]);
	if(rc) {
	flash_message(connection,cmd->argv[3],"error","Flash Error");
	} else {
	flash_message(connection,cmd->argv[3],"done","");
	}

	//Object exits when done flashing
	g_main_loop_quit(cmd->loop);
	}

	int
	main(int argc, char *argv[])
	{
	GMainLoop *loop;
	cmdline cmd;
	cmd.argc = argc;
	cmd.argv = argv;

	guint id;
	loop = g_main_loop_new(NULL, FALSE);
	cmd.loop = loop;

	id = g_bus_own_name(DBUS_TYPE,
	dbus_name,
	G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT \|
	G_BUS_NAME_OWNER_FLAGS_REPLACE,
	on_bus_acquired,
	NULL,
	NULL,
	&cmd,
	NULL);

	g_main_loop_run(loop);

	g_bus_unown_name(id);
	g_main_loop_unref(loop);

	return 0;
	}