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| author | Peter Tyser <ptyser@xes-inc.com> | 2009-07-20 19:02:21 -0500 | 
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2009-07-21 09:23:36 +0200 | 
| commit | d4abc757c26c531293f5bbc4262ade44a317eec9 (patch) | |
| tree | 125ef9d60654aafbf8c413cb8379957e14917196 /api_examples/glue.c | |
| parent | af1d7d984a23a0faa1f436ebfeb55c876b1a99e1 (diff) | |
| download | olio-uboot-2014.01-d4abc757c26c531293f5bbc4262ade44a317eec9.tar.xz olio-uboot-2014.01-d4abc757c26c531293f5bbc4262ade44a317eec9.zip  | |
Move api_examples to examples/api
Also add a rule to remove demo.bin which was previously leftover
after a "make clean"
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'api_examples/glue.c')
| -rw-r--r-- | api_examples/glue.c | 404 | 
1 files changed, 0 insertions, 404 deletions
diff --git a/api_examples/glue.c b/api_examples/glue.c deleted file mode 100644 index eff6a7e62..000000000 --- a/api_examples/glue.c +++ /dev/null @@ -1,404 +0,0 @@ -/* - * (C) Copyright 2007-2008 Semihalf, Rafal Jaworowski <raj@semihalf.com> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * - */ - -#include <common.h> -#include <linux/types.h> -#include <api_public.h> - -#include "glue.h" - -static int valid_sig(struct api_signature *sig) -{ -	uint32_t checksum; -	struct api_signature s; - -	if (sig == NULL) -		return 0; -	/* -	 * Clear the checksum field (in the local copy) so as to calculate the -	 * CRC with the same initial contents as at the time when the sig was -	 * produced -	 */ -	s = *sig; -	s.checksum = 0; - -	checksum = crc32(0, (unsigned char *)&s, sizeof(struct api_signature)); - -	if (checksum != sig->checksum) -		return 0; - -	return 1; -} - -/* - * Searches for the U-Boot API signature - * - * returns 1/0 depending on found/not found result - */ -int api_search_sig(struct api_signature **sig) -{ -	unsigned char *sp; -	uint32_t search_start = 0; -	uint32_t search_end = 0; - -	if (sig == NULL) -		return 0; - -	if (search_hint == 0) -		search_hint = 255 * 1024 * 1024; - -	search_start = search_hint & ~0x000fffff; -	search_end = search_start + API_SEARCH_LEN - API_SIG_MAGLEN; - -	sp = (unsigned char *)search_start; -	while ((sp + API_SIG_MAGLEN) < (unsigned char *)search_end) { -		if (!memcmp(sp, API_SIG_MAGIC, API_SIG_MAGLEN)) { -			*sig = (struct api_signature *)sp; -			if (valid_sig(*sig)) -				return 1; -		} -		sp += API_SIG_MAGLEN; -	} - -	*sig = NULL; -	return 0; -} - -/**************************************** - * - * console - * - ****************************************/ - -int ub_getc(void) -{ -	int c; - -	if (!syscall(API_GETC, NULL, (uint32_t)&c)) -		return -1; - -	return c; -} - -int ub_tstc(void) -{ -	int t; - -	if (!syscall(API_TSTC, NULL, (uint32_t)&t)) -		return -1; - -	return t; -} - -void ub_putc(char c) -{ -	syscall(API_PUTC, NULL, (uint32_t)&c); -} - -void ub_puts(const char *s) -{ -	syscall(API_PUTS, NULL, (uint32_t)s); -} - -/**************************************** - * - * system - * - ****************************************/ - -void ub_reset(void) -{ -	syscall(API_RESET, NULL); -} - -static struct mem_region mr[UB_MAX_MR]; -static struct sys_info si; - -struct sys_info * ub_get_sys_info(void) -{ -	int err = 0; - -	memset(&si, 0, sizeof(struct sys_info)); -	si.mr = mr; -	si.mr_no = UB_MAX_MR; -	memset(&mr, 0, sizeof(mr)); - -	if (!syscall(API_GET_SYS_INFO, &err, (u_int32_t)&si)) -		return NULL; - -	return ((err) ? NULL : &si); -} - -/**************************************** - * - * timing - * - ****************************************/ - -void ub_udelay(unsigned long usec) -{ -	syscall(API_UDELAY, NULL, &usec); -} - -unsigned long ub_get_timer(unsigned long base) -{ -	unsigned long cur; - -	if (!syscall(API_GET_TIMER, NULL, &cur, &base)) -		return 0; - -	return cur; -} - - -/**************************************************************************** - * - * devices - * - * Devices are identified by handles: numbers 0, 1, 2, ..., UB_MAX_DEV-1 - * - ***************************************************************************/ - -static struct device_info devices[UB_MAX_DEV]; - -struct device_info * ub_dev_get(int i) -{ -	return ((i < 0 || i >= UB_MAX_DEV) ? NULL : &devices[i]); -} - -/* - * Enumerates the devices: fills out device_info elements in the devices[] - * array. - * - * returns:		number of devices found - */ -int ub_dev_enum(void) -{ -	struct device_info *di; -	int n = 0; - -	memset(&devices, 0, sizeof(struct device_info) * UB_MAX_DEV); -	di = &devices[0]; - -	if (!syscall(API_DEV_ENUM, NULL, di)) -		return 0; - -	while (di->cookie != NULL) { - -		if (++n >= UB_MAX_DEV) -			break; - -		/* take another device_info */ -		di++; - -		/* pass on the previous cookie */ -		di->cookie = devices[n - 1].cookie; - -		if (!syscall(API_DEV_ENUM, NULL, di)) -			return 0; -	} - -	return n; -} - -/* - * handle:	0-based id of the device - * - * returns:	0 when OK, err otherwise - */ -int ub_dev_open(int handle) -{ -	struct device_info *di; -	int err = 0; - -	if (handle < 0 || handle >= UB_MAX_DEV) -		return API_EINVAL; - -	di = &devices[handle]; - -	if (!syscall(API_DEV_OPEN, &err, di)) -		return -1; - -	return err; -} - -int ub_dev_close(int handle) -{ -	struct device_info *di; - -	if (handle < 0 || handle >= UB_MAX_DEV) -		return API_EINVAL; - -	di = &devices[handle]; -	if (!syscall(API_DEV_CLOSE, NULL, di)) -		return -1; - -	return 0; -} - -/* - * - * Validates device for read/write, it has to: - * - * - have sane handle - * - be opened - * - * returns:	0/1 accordingly - */ -static int dev_valid(int handle) -{ -	if (handle < 0 || handle >= UB_MAX_DEV) -		return 0; - -	if (devices[handle].state != DEV_STA_OPEN) -		return 0; - -	return 1; -} - -static int dev_stor_valid(int handle) -{ -	if (!dev_valid(handle)) -		return 0; - -	if (!(devices[handle].type & DEV_TYP_STOR)) -		return 0; - -	return 1; -} - -int ub_dev_read(int handle, void *buf, lbasize_t len, lbastart_t start, -		lbasize_t *rlen) -{ -	struct device_info *di; -	lbasize_t act_len; -	int err = 0; - -	if (!dev_stor_valid(handle)) -		return API_ENODEV; - -	di = &devices[handle]; -	if (!syscall(API_DEV_READ, &err, di, buf, &len, &start, &act_len)) -		return API_ESYSC; - -	if (!err && rlen) -		*rlen = act_len; - -	return err; -} - -static int dev_net_valid(int handle) -{ -	if (!dev_valid(handle)) -		return 0; - -	if (devices[handle].type != DEV_TYP_NET) -		return 0; - -	return 1; -} - -int ub_dev_recv(int handle, void *buf, int len, int *rlen) -{ -	struct device_info *di; -	int err = 0, act_len; - -	if (!dev_net_valid(handle)) -		return API_ENODEV; - -	di = &devices[handle]; -	if (!syscall(API_DEV_READ, &err, di, buf, &len, &act_len)) -		return API_ESYSC; - -	if (!err && rlen) -		*rlen = act_len; - -	 return (err); -} - -int ub_dev_send(int handle, void *buf, int len) -{ -	struct device_info *di; -	int err = 0; - -	if (!dev_net_valid(handle)) -		return API_ENODEV; - -	di = &devices[handle]; -	if (!syscall(API_DEV_WRITE, &err, di, buf, &len)) -		return API_ESYSC; - -	return err; -} - -/**************************************** - * - * env vars - * - ****************************************/ - -char * ub_env_get(const char *name) -{ -	char *value; - -	if (!syscall(API_ENV_GET, NULL, (uint32_t)name, (uint32_t)&value)) -		return NULL; - -	return value; -} - -void ub_env_set(const char *name, char *value) -{ -	syscall(API_ENV_SET, NULL, (uint32_t)name, (uint32_t)value); -} - -static char env_name[256]; - -const char * ub_env_enum(const char *last) -{ -	const char *env, *str; -	int i; - -	env = NULL; - -	/* -	 * It's OK to pass only the name piece as last (and not the whole -	 * 'name=val' string), since the API_ENUM_ENV call uses envmatch() -	 * internally, which handles such case -	 */ -	if (!syscall(API_ENV_ENUM, NULL, (uint32_t)last, (uint32_t)&env)) -		return NULL; - -	if (!env) -		/* no more env. variables to enumerate */ -		return NULL; - -	/* next enumerated env var */ -	memset(env_name, 0, 256); -	for (i = 0, str = env; *str != '=' && *str != '\0';) -		env_name[i++] = *str++; - -	env_name[i] = '\0'; - -	return env_name; -}  |