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authorPeter Tyser <ptyser@xes-inc.com>2009-07-20 19:02:21 -0500
committerWolfgang Denk <wd@denx.de>2009-07-21 09:23:36 +0200
commitd4abc757c26c531293f5bbc4262ade44a317eec9 (patch)
tree125ef9d60654aafbf8c413cb8379957e14917196 /api_examples/glue.c
parentaf1d7d984a23a0faa1f436ebfeb55c876b1a99e1 (diff)
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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.c404
1 files changed, 0 insertions, 404 deletions
diff --git a/api_examples/glue.c b/api_examples/glue.c
deleted file mode 100644
index eff6a7e..0000000
--- 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;
-}