From: Peter Tyser Date: Tue, 21 Jul 2009 00:02:21 +0000 (-0500) Subject: Move api_examples to examples/api X-Git-Tag: v2009.08-rc1~40 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=d4abc757c26c531293f5bbc4262ade44a317eec9;p=oweals%2Fu-boot.git 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 --- diff --git a/Makefile b/Makefile index 9ffba2e937..25a62541d1 100644 --- a/Makefile +++ b/Makefile @@ -141,7 +141,7 @@ endif # Don't include stuff already done in $(LIBS) SUBDIRS = tools \ examples/standalone \ - api_examples + examples/api .PHONY : $(SUBDIRS) @@ -3601,6 +3601,7 @@ clean: $(obj)examples/standalone/smc91111_eeprom \ $(obj)examples/standalone/test_burst \ $(obj)examples/standalone/timer + @rm -f $(obj)examples/api/demo{,.bin} @rm -f $(obj)tools/bmp_logo $(obj)tools/easylogo/easylogo \ $(obj)tools/env/{fw_printenv,fw_setenv} \ $(obj)tools/envcrc \ @@ -3617,7 +3618,7 @@ clean: @rm -f $(obj)include/bmp_logo.h @rm -f $(obj)nand_spl/{u-boot-spl,u-boot-spl.map,System.map} @rm -f $(obj)onenand_ipl/onenand-{ipl,ipl.bin,ipl-2k.bin,ipl-4k.bin,ipl.map} - @rm -f $(obj)api_examples/demo $(TIMESTAMP_FILE) $(VERSION_FILE) + @rm -f $(TIMESTAMP_FILE) $(VERSION_FILE) @find $(OBJTREE) -type f \ \( -name 'core' -o -name '*.bak' -o -name '*~' \ -o -name '*.o' -o -name '*.a' -o -name '*.exe' \) -print \ diff --git a/api_examples/.gitignore b/api_examples/.gitignore deleted file mode 100644 index d7b18dcef5..0000000000 --- a/api_examples/.gitignore +++ /dev/null @@ -1,2 +0,0 @@ -demo -demo.bin diff --git a/api_examples/Makefile b/api_examples/Makefile deleted file mode 100644 index 2a30bef69d..0000000000 --- a/api_examples/Makefile +++ /dev/null @@ -1,90 +0,0 @@ -# -# (C) Copyright 2007 Semihalf -# -# 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 Foundatio; 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 -# - -ifeq ($(ARCH),ppc) -LOAD_ADDR = 0x40000 -endif -ifeq ($(ARCH),arm) -LOAD_ADDR = 0x1000000 -endif - -include $(TOPDIR)/config.mk - -# Resulting ELF and binary exectuables will be named demo and demo.bin -OUTPUT-$(CONFIG_API) = $(obj)demo -OUTPUT = $(OUTPUT-y) - -# Source files located in the api_examples directory -SOBJ_FILES-$(CONFIG_API) += crt0.o -COBJ_FILES-$(CONFIG_API) += demo.o -COBJ_FILES-$(CONFIG_API) += glue.o -COBJ_FILES-$(CONFIG_API) += libgenwrap.o - -# Source files which exist outside the api_examples directory -EXT_COBJ_FILES-$(CONFIG_API) += lib_generic/crc32.o -EXT_COBJ_FILES-$(CONFIG_API) += lib_generic/ctype.o -EXT_COBJ_FILES-$(CONFIG_API) += lib_generic/string.o -EXT_COBJ_FILES-$(CONFIG_API) += lib_generic/vsprintf.o -ifeq ($(ARCH),ppc) -EXT_SOBJ_FILES-$(CONFIG_API) += lib_ppc/ppcstring.o -endif - -# Create a list of source files so their dependencies can be auto-generated -SRCS += $(addprefix $(SRCTREE)/,$(EXT_COBJ_FILES-y:.o=.c)) -SRCS += $(addprefix $(SRCTREE)/,$(EXT_SOBJ_FILES-y:.o=.S)) -SRCS += $(addprefix $(SRCTREE)/api_examples/,$(COBJ_FILES-y:.o=.c)) -SRCS += $(addprefix $(SRCTREE)/api_examples/,$(SOBJ_FILES-y:.o=.S)) - -# Create a list of object files to be compiled -OBJS += $(addprefix $(obj),$(SOBJ_FILES-y)) -OBJS += $(addprefix $(obj),$(COBJ_FILES-y)) -OBJS += $(addprefix $(obj),$(notdir $(EXT_COBJ_FILES-y))) -OBJS += $(addprefix $(obj),$(notdir $(EXT_SOBJ_FILES-y))) - -gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`) - -CPPFLAGS += -I.. - -all: $(obj).depend $(OUTPUT) - -######################################################################### - -$(OUTPUT): $(OBJS) - $(LD) -Ttext $(LOAD_ADDR) -o $@ $^ -L$(gcclibdir) -lgcc - $(OBJCOPY) -O binary $@ $(OUTPUT).bin 2>/dev/null - -# Rule to build generic library C files -$(obj)%.o: $(SRCTREE)/lib_generic/%.c - $(CC) -g $(CFLAGS) -c -o $@ $< - -# Rule to build architecture-specific library assembly files -$(obj)%.o: $(SRCTREE)/lib_$(ARCH)/%.S - $(CC) -g $(CFLAGS) -c -o $@ $< - -######################################################################### - -# defines $(obj).depend target -include $(SRCTREE)/rules.mk - -sinclude $(obj).depend - -######################################################################### diff --git a/api_examples/crt0.S b/api_examples/crt0.S deleted file mode 100644 index 6daf127893..0000000000 --- a/api_examples/crt0.S +++ /dev/null @@ -1,71 +0,0 @@ -/* - * (C) Copyright 2007 Semihalf - * - * Written by: Rafal Jaworowski - * - * 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 - * - */ - -#if defined(CONFIG_PPC) - - .text - .globl _start -_start: - lis %r11, search_hint@ha - addi %r11, %r11, search_hint@l - stw %r1, 0(%r11) - b main - - - .globl syscall -syscall: - lis %r11, syscall_ptr@ha - addi %r11, %r11, syscall_ptr@l - lwz %r11, 0(%r11) - mtctr %r11 - bctr - -#elif defined(CONFIG_ARM) - - .text - .globl _start -_start: - ldr ip, =search_hint - str sp, [ip] - b main - - - .globl syscall -syscall: - ldr ip, =syscall_ptr - ldr pc, [ip] - -#else -#error No support for this arch! -#endif - - .globl syscall_ptr -syscall_ptr: - .align 4 - .long 0 - - .globl search_hint -search_hint: - .long 0 diff --git a/api_examples/demo.c b/api_examples/demo.c deleted file mode 100644 index df9c4bd8bc..0000000000 --- a/api_examples/demo.c +++ /dev/null @@ -1,300 +0,0 @@ -/* - * (C) Copyright 2007-2008 Semihalf - * - * Written by: Rafal Jaworowski - * - * 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 -#include -#include - -#include "glue.h" - -#define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0) - -#define BUF_SZ 2048 -#define WAIT_SECS 5 - -void test_dump_buf(void *, int); -void test_dump_di(int); -void test_dump_si(struct sys_info *); -void test_dump_sig(struct api_signature *); - -static char buf[BUF_SZ]; - -int main(int argc, char *argv[]) -{ - int rv = 0, h, i, j, devs_no; - struct api_signature *sig = NULL; - ulong start, now; - struct device_info *di; - lbasize_t rlen; - - if (!api_search_sig(&sig)) - return -1; - - syscall_ptr = sig->syscall; - if (syscall_ptr == NULL) - return -2; - - if (sig->version > API_SIG_VERSION) - return -3; - - printf("API signature found @%x\n", (unsigned int)sig); - test_dump_sig(sig); - - printf("\n*** Consumer API test ***\n"); - printf("syscall ptr 0x%08x@%08x\n", (unsigned int)syscall_ptr, - (unsigned int)&syscall_ptr); - - /* console activities */ - ub_putc('B'); - - printf("*** Press any key to continue ***\n"); - printf("got char 0x%x\n", ub_getc()); - - /* system info */ - test_dump_si(ub_get_sys_info()); - - /* timing */ - printf("\n*** Timing - wait a couple of secs ***\n"); - start = ub_get_timer(0); - printf("\ntime: start %lu\n\n", start); - for (i = 0; i < WAIT_SECS; i++) - for (j = 0; j < 1000; j++) - ub_udelay(1000); /* wait 1 ms */ - - /* this is the number of milliseconds that passed from ub_get_timer(0) */ - now = ub_get_timer(start); - printf("\ntime: now %lu\n\n", now); - - /* enumerate devices */ - printf("\n*** Enumerate devices ***\n"); - devs_no = ub_dev_enum(); - - printf("Number of devices found: %d\n", devs_no); - if (devs_no == 0) - return -1; - - printf("\n*** Show devices ***\n"); - for (i = 0; i < devs_no; i++) { - test_dump_di(i); - printf("\n"); - } - - printf("\n*** Operations on devices ***\n"); - - /* test opening a device already opened */ - h = 0; - if ((rv = ub_dev_open(h)) != 0) { - errf("open device %d error %d\n", h, rv); - return -1; - } - if ((rv = ub_dev_open(h)) != 0) - errf("open device %d error %d\n", h, rv); - - ub_dev_close(h); - - /* test storage */ - printf("Trying storage devices...\n"); - for (i = 0; i < devs_no; i++) { - di = ub_dev_get(i); - - if (di->type & DEV_TYP_STOR) - break; - - } - if (i == devs_no) - printf("No storage devices available\n"); - else { - memset(buf, 0, BUF_SZ); - - if ((rv = ub_dev_open(i)) != 0) - errf("open device %d error %d\n", i, rv); - - else if ((rv = ub_dev_read(i, buf, 1, 0, &rlen)) != 0) - errf("could not read from device %d, error %d\n", i, rv); - else { - printf("Sector 0 dump (512B):\n"); - test_dump_buf(buf, 512); - } - - ub_dev_close(i); - } - - /* test networking */ - printf("Trying network devices...\n"); - for (i = 0; i < devs_no; i++) { - di = ub_dev_get(i); - - if (di->type == DEV_TYP_NET) - break; - - } - if (i == devs_no) - printf("No network devices available\n"); - else { - if ((rv = ub_dev_open(i)) != 0) - errf("open device %d error %d\n", i, rv); - else if ((rv = ub_dev_send(i, &buf, 2048)) != 0) - errf("could not send to device %d, error %d\n", i, rv); - - ub_dev_close(i); - } - - if (ub_dev_close(h) != 0) - errf("could not close device %d\n", h); - - printf("\n*** Env vars ***\n"); - - printf("ethact = %s\n", ub_env_get("ethact")); - printf("old fileaddr = %s\n", ub_env_get("fileaddr")); - ub_env_set("fileaddr", "deadbeef"); - printf("new fileaddr = %s\n", ub_env_get("fileaddr")); - - const char *env = NULL; - - while ((env = ub_env_enum(env)) != NULL) - printf("%s = %s\n", env, ub_env_get(env)); - - /* reset */ - printf("\n*** Resetting board ***\n"); - ub_reset(); - printf("\nHmm, reset returned...?!\n"); - - return rv; -} - -void test_dump_sig(struct api_signature *sig) -{ - printf("signature:\n"); - printf(" version\t= %d\n", sig->version); - printf(" checksum\t= 0x%08x\n", sig->checksum); - printf(" sc entry\t= 0x%08x\n", (unsigned int)sig->syscall); -} - -void test_dump_si(struct sys_info *si) -{ - int i; - - printf("sys info:\n"); - printf(" clkbus\t= 0x%08x\n", (unsigned int)si->clk_bus); - printf(" clkcpu\t= 0x%08x\n", (unsigned int)si->clk_cpu); - printf(" bar\t\t= 0x%08x\n", (unsigned int)si->bar); - - printf("---\n"); - for (i = 0; i < si->mr_no; i++) { - if (si->mr[i].flags == 0) - break; - - printf(" start\t= 0x%08lx\n", si->mr[i].start); - printf(" size\t= 0x%08lx\n", si->mr[i].size); - - switch(si->mr[i].flags & 0x000F) { - case MR_ATTR_FLASH: - printf(" type FLASH\n"); - break; - case MR_ATTR_DRAM: - printf(" type DRAM\n"); - break; - case MR_ATTR_SRAM: - printf(" type SRAM\n"); - break; - default: - printf(" type UNKNOWN\n"); - } - printf("---\n"); - } -} - -static char *test_stor_typ(int type) -{ - if (type & DT_STOR_IDE) - return "IDE"; - - if (type & DT_STOR_MMC) - return "MMC"; - - if (type & DT_STOR_SATA) - return "SATA"; - - if (type & DT_STOR_SCSI) - return "SCSI"; - - if (type & DT_STOR_USB) - return "USB"; - - return "Unknown"; -} - -void test_dump_buf(void *buf, int len) -{ - int i; - int line_counter = 0; - int sep_flag = 0; - int addr = 0; - - printf("%07x:\t", addr); - - for (i = 0; i < len; i++) { - if (line_counter++ > 15) { - line_counter = 0; - sep_flag = 0; - addr += 16; - i--; - printf("\n%07x:\t", addr); - continue; - } - - if (sep_flag++ > 1) { - sep_flag = 1; - printf(" "); - } - - printf("%02x", *((char *)buf++)); - } - - printf("\n"); -} - -void test_dump_di(int handle) -{ - int i; - struct device_info *di = ub_dev_get(handle); - - printf("device info (%d):\n", handle); - printf(" cookie\t= 0x%08x\n", (uint32_t)di->cookie); - printf(" type\t\t= 0x%08x\n", di->type); - - if (di->type == DEV_TYP_NET) { - printf(" hwaddr\t= "); - for (i = 0; i < 6; i++) - printf("%02x ", di->di_net.hwaddr[i]); - - printf("\n"); - - } else if (di->type & DEV_TYP_STOR) { - printf(" type\t\t= %s\n", test_stor_typ(di->type)); - printf(" blk size\t\t= %d\n", (unsigned int)di->di_stor.block_size); - printf(" blk count\t\t= %d\n", (unsigned int)di->di_stor.block_count); - } -} diff --git a/api_examples/glue.c b/api_examples/glue.c deleted file mode 100644 index eff6a7e62f..0000000000 --- a/api_examples/glue.c +++ /dev/null @@ -1,404 +0,0 @@ -/* - * (C) Copyright 2007-2008 Semihalf, Rafal Jaworowski - * - * 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 -#include -#include - -#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; -} diff --git a/api_examples/glue.h b/api_examples/glue.h deleted file mode 100644 index 6bf47d07c8..0000000000 --- a/api_examples/glue.h +++ /dev/null @@ -1,80 +0,0 @@ -/* - * (C) Copyright 2007 Semihalf - * - * Written by: Rafal Jaworowski - * - * 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 - * - */ - -/* - * This is the header file for conveniency wrapper routines (API glue) - */ - -#ifndef _API_GLUE_H_ -#define _API_GLUE_H_ - -#define API_SEARCH_LEN (3 * 1024 * 1024) /* 3MB search range */ - -#define UB_MAX_MR 5 /* max mem regions number */ -#define UB_MAX_DEV 6 /* max devices number */ - -extern void *syscall_ptr; -extern uint32_t search_hint; - -int syscall(int, int *, ...); -int api_search_sig(struct api_signature **sig); - -/* - * The ub_ library calls are part of the application, not U-Boot code! They - * are front-end wrappers that are used by the consumer application: they - * prepare arguments for particular syscall and jump to the low level - * syscall() - */ - -/* console */ -int ub_getc(void); -int ub_tstc(void); -void ub_putc(char c); -void ub_puts(const char *s); - -/* system */ -void ub_reset(void); -struct sys_info * ub_get_sys_info(void); - -/* time */ -void ub_udelay(unsigned long); -unsigned long ub_get_timer(unsigned long); - -/* env vars */ -char * ub_env_get(const char *name); -void ub_env_set(const char *name, char *value); -const char * ub_env_enum(const char *last); - -/* devices */ -int ub_dev_enum(void); -int ub_dev_open(int handle); -int ub_dev_close(int handle); -int ub_dev_read(int handle, void *buf, lbasize_t len, - lbastart_t start, lbasize_t *rlen); -int ub_dev_send(int handle, void *buf, int len); -int ub_dev_recv(int handle, void *buf, int len, int *rlen); -struct device_info * ub_dev_get(int); - -#endif /* _API_GLUE_H_ */ diff --git a/api_examples/libgenwrap.c b/api_examples/libgenwrap.c deleted file mode 100644 index 2b62badfb8..0000000000 --- a/api_examples/libgenwrap.c +++ /dev/null @@ -1,95 +0,0 @@ -/* - * (C) Copyright 2007 Semihalf - * - * Written by: Rafal Jaworowski - * - * 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 - * - * - * This is is a set of wrappers/stubs that allow to use certain routines from - * U-Boot's lib_generic in the standalone app. This way way we can re-use - * existing code e.g. operations on strings and similar. - * - */ - -#include -#include -#include - -#include "glue.h" - -/* - * printf() and vprintf() are stolen from u-boot/common/console.c - */ -void printf (const char *fmt, ...) -{ - va_list args; - uint i; - char printbuffer[256]; - - va_start (args, fmt); - - /* For this to work, printbuffer must be larger than - * anything we ever want to print. - */ - i = vsprintf (printbuffer, fmt, args); - va_end (args); - - /* Print the string */ - ub_puts (printbuffer); -} - -void vprintf (const char *fmt, va_list args) -{ - uint i; - char printbuffer[256]; - - /* For this to work, printbuffer must be larger than - * anything we ever want to print. - */ - i = vsprintf (printbuffer, fmt, args); - - /* Print the string */ - ub_puts (printbuffer); -} - -void putc (const char c) -{ - ub_putc(c); -} - -void udelay(unsigned long usec) -{ - ub_udelay(usec); -} - -void do_reset (void) -{ - ub_reset(); -} - -void *malloc (size_t len) -{ - return NULL; -} - -void hang (void) -{ - while (1) ; -} diff --git a/examples/api/.gitignore b/examples/api/.gitignore new file mode 100644 index 0000000000..d7b18dcef5 --- /dev/null +++ b/examples/api/.gitignore @@ -0,0 +1,2 @@ +demo +demo.bin diff --git a/examples/api/Makefile b/examples/api/Makefile new file mode 100644 index 0000000000..2d05a0121e --- /dev/null +++ b/examples/api/Makefile @@ -0,0 +1,90 @@ +# +# (C) Copyright 2007 Semihalf +# +# 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 Foundatio; 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 +# + +ifeq ($(ARCH),ppc) +LOAD_ADDR = 0x40000 +endif +ifeq ($(ARCH),arm) +LOAD_ADDR = 0x1000000 +endif + +include $(TOPDIR)/config.mk + +# Resulting ELF and binary exectuables will be named demo and demo.bin +OUTPUT-$(CONFIG_API) = $(obj)demo +OUTPUT = $(OUTPUT-y) + +# Source files located in the examples/api directory +SOBJ_FILES-$(CONFIG_API) += crt0.o +COBJ_FILES-$(CONFIG_API) += demo.o +COBJ_FILES-$(CONFIG_API) += glue.o +COBJ_FILES-$(CONFIG_API) += libgenwrap.o + +# Source files which exist outside the examples/api directory +EXT_COBJ_FILES-$(CONFIG_API) += lib_generic/crc32.o +EXT_COBJ_FILES-$(CONFIG_API) += lib_generic/ctype.o +EXT_COBJ_FILES-$(CONFIG_API) += lib_generic/string.o +EXT_COBJ_FILES-$(CONFIG_API) += lib_generic/vsprintf.o +ifeq ($(ARCH),ppc) +EXT_SOBJ_FILES-$(CONFIG_API) += lib_ppc/ppcstring.o +endif + +# Create a list of source files so their dependencies can be auto-generated +SRCS += $(addprefix $(SRCTREE)/,$(EXT_COBJ_FILES-y:.o=.c)) +SRCS += $(addprefix $(SRCTREE)/,$(EXT_SOBJ_FILES-y:.o=.S)) +SRCS += $(addprefix $(SRCTREE)/examples/api/,$(COBJ_FILES-y:.o=.c)) +SRCS += $(addprefix $(SRCTREE)/examples/api/,$(SOBJ_FILES-y:.o=.S)) + +# Create a list of object files to be compiled +OBJS += $(addprefix $(obj),$(SOBJ_FILES-y)) +OBJS += $(addprefix $(obj),$(COBJ_FILES-y)) +OBJS += $(addprefix $(obj),$(notdir $(EXT_COBJ_FILES-y))) +OBJS += $(addprefix $(obj),$(notdir $(EXT_SOBJ_FILES-y))) + +gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`) + +CPPFLAGS += -I.. + +all: $(obj).depend $(OUTPUT) + +######################################################################### + +$(OUTPUT): $(OBJS) + $(LD) -Ttext $(LOAD_ADDR) -o $@ $^ -L$(gcclibdir) -lgcc + $(OBJCOPY) -O binary $@ $(OUTPUT).bin 2>/dev/null + +# Rule to build generic library C files +$(obj)%.o: $(SRCTREE)/lib_generic/%.c + $(CC) -g $(CFLAGS) -c -o $@ $< + +# Rule to build architecture-specific library assembly files +$(obj)%.o: $(SRCTREE)/lib_$(ARCH)/%.S + $(CC) -g $(CFLAGS) -c -o $@ $< + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/examples/api/crt0.S b/examples/api/crt0.S new file mode 100644 index 0000000000..6daf127893 --- /dev/null +++ b/examples/api/crt0.S @@ -0,0 +1,71 @@ +/* + * (C) Copyright 2007 Semihalf + * + * Written by: Rafal Jaworowski + * + * 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 + * + */ + +#if defined(CONFIG_PPC) + + .text + .globl _start +_start: + lis %r11, search_hint@ha + addi %r11, %r11, search_hint@l + stw %r1, 0(%r11) + b main + + + .globl syscall +syscall: + lis %r11, syscall_ptr@ha + addi %r11, %r11, syscall_ptr@l + lwz %r11, 0(%r11) + mtctr %r11 + bctr + +#elif defined(CONFIG_ARM) + + .text + .globl _start +_start: + ldr ip, =search_hint + str sp, [ip] + b main + + + .globl syscall +syscall: + ldr ip, =syscall_ptr + ldr pc, [ip] + +#else +#error No support for this arch! +#endif + + .globl syscall_ptr +syscall_ptr: + .align 4 + .long 0 + + .globl search_hint +search_hint: + .long 0 diff --git a/examples/api/demo.c b/examples/api/demo.c new file mode 100644 index 0000000000..df9c4bd8bc --- /dev/null +++ b/examples/api/demo.c @@ -0,0 +1,300 @@ +/* + * (C) Copyright 2007-2008 Semihalf + * + * Written by: Rafal Jaworowski + * + * 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 +#include +#include + +#include "glue.h" + +#define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0) + +#define BUF_SZ 2048 +#define WAIT_SECS 5 + +void test_dump_buf(void *, int); +void test_dump_di(int); +void test_dump_si(struct sys_info *); +void test_dump_sig(struct api_signature *); + +static char buf[BUF_SZ]; + +int main(int argc, char *argv[]) +{ + int rv = 0, h, i, j, devs_no; + struct api_signature *sig = NULL; + ulong start, now; + struct device_info *di; + lbasize_t rlen; + + if (!api_search_sig(&sig)) + return -1; + + syscall_ptr = sig->syscall; + if (syscall_ptr == NULL) + return -2; + + if (sig->version > API_SIG_VERSION) + return -3; + + printf("API signature found @%x\n", (unsigned int)sig); + test_dump_sig(sig); + + printf("\n*** Consumer API test ***\n"); + printf("syscall ptr 0x%08x@%08x\n", (unsigned int)syscall_ptr, + (unsigned int)&syscall_ptr); + + /* console activities */ + ub_putc('B'); + + printf("*** Press any key to continue ***\n"); + printf("got char 0x%x\n", ub_getc()); + + /* system info */ + test_dump_si(ub_get_sys_info()); + + /* timing */ + printf("\n*** Timing - wait a couple of secs ***\n"); + start = ub_get_timer(0); + printf("\ntime: start %lu\n\n", start); + for (i = 0; i < WAIT_SECS; i++) + for (j = 0; j < 1000; j++) + ub_udelay(1000); /* wait 1 ms */ + + /* this is the number of milliseconds that passed from ub_get_timer(0) */ + now = ub_get_timer(start); + printf("\ntime: now %lu\n\n", now); + + /* enumerate devices */ + printf("\n*** Enumerate devices ***\n"); + devs_no = ub_dev_enum(); + + printf("Number of devices found: %d\n", devs_no); + if (devs_no == 0) + return -1; + + printf("\n*** Show devices ***\n"); + for (i = 0; i < devs_no; i++) { + test_dump_di(i); + printf("\n"); + } + + printf("\n*** Operations on devices ***\n"); + + /* test opening a device already opened */ + h = 0; + if ((rv = ub_dev_open(h)) != 0) { + errf("open device %d error %d\n", h, rv); + return -1; + } + if ((rv = ub_dev_open(h)) != 0) + errf("open device %d error %d\n", h, rv); + + ub_dev_close(h); + + /* test storage */ + printf("Trying storage devices...\n"); + for (i = 0; i < devs_no; i++) { + di = ub_dev_get(i); + + if (di->type & DEV_TYP_STOR) + break; + + } + if (i == devs_no) + printf("No storage devices available\n"); + else { + memset(buf, 0, BUF_SZ); + + if ((rv = ub_dev_open(i)) != 0) + errf("open device %d error %d\n", i, rv); + + else if ((rv = ub_dev_read(i, buf, 1, 0, &rlen)) != 0) + errf("could not read from device %d, error %d\n", i, rv); + else { + printf("Sector 0 dump (512B):\n"); + test_dump_buf(buf, 512); + } + + ub_dev_close(i); + } + + /* test networking */ + printf("Trying network devices...\n"); + for (i = 0; i < devs_no; i++) { + di = ub_dev_get(i); + + if (di->type == DEV_TYP_NET) + break; + + } + if (i == devs_no) + printf("No network devices available\n"); + else { + if ((rv = ub_dev_open(i)) != 0) + errf("open device %d error %d\n", i, rv); + else if ((rv = ub_dev_send(i, &buf, 2048)) != 0) + errf("could not send to device %d, error %d\n", i, rv); + + ub_dev_close(i); + } + + if (ub_dev_close(h) != 0) + errf("could not close device %d\n", h); + + printf("\n*** Env vars ***\n"); + + printf("ethact = %s\n", ub_env_get("ethact")); + printf("old fileaddr = %s\n", ub_env_get("fileaddr")); + ub_env_set("fileaddr", "deadbeef"); + printf("new fileaddr = %s\n", ub_env_get("fileaddr")); + + const char *env = NULL; + + while ((env = ub_env_enum(env)) != NULL) + printf("%s = %s\n", env, ub_env_get(env)); + + /* reset */ + printf("\n*** Resetting board ***\n"); + ub_reset(); + printf("\nHmm, reset returned...?!\n"); + + return rv; +} + +void test_dump_sig(struct api_signature *sig) +{ + printf("signature:\n"); + printf(" version\t= %d\n", sig->version); + printf(" checksum\t= 0x%08x\n", sig->checksum); + printf(" sc entry\t= 0x%08x\n", (unsigned int)sig->syscall); +} + +void test_dump_si(struct sys_info *si) +{ + int i; + + printf("sys info:\n"); + printf(" clkbus\t= 0x%08x\n", (unsigned int)si->clk_bus); + printf(" clkcpu\t= 0x%08x\n", (unsigned int)si->clk_cpu); + printf(" bar\t\t= 0x%08x\n", (unsigned int)si->bar); + + printf("---\n"); + for (i = 0; i < si->mr_no; i++) { + if (si->mr[i].flags == 0) + break; + + printf(" start\t= 0x%08lx\n", si->mr[i].start); + printf(" size\t= 0x%08lx\n", si->mr[i].size); + + switch(si->mr[i].flags & 0x000F) { + case MR_ATTR_FLASH: + printf(" type FLASH\n"); + break; + case MR_ATTR_DRAM: + printf(" type DRAM\n"); + break; + case MR_ATTR_SRAM: + printf(" type SRAM\n"); + break; + default: + printf(" type UNKNOWN\n"); + } + printf("---\n"); + } +} + +static char *test_stor_typ(int type) +{ + if (type & DT_STOR_IDE) + return "IDE"; + + if (type & DT_STOR_MMC) + return "MMC"; + + if (type & DT_STOR_SATA) + return "SATA"; + + if (type & DT_STOR_SCSI) + return "SCSI"; + + if (type & DT_STOR_USB) + return "USB"; + + return "Unknown"; +} + +void test_dump_buf(void *buf, int len) +{ + int i; + int line_counter = 0; + int sep_flag = 0; + int addr = 0; + + printf("%07x:\t", addr); + + for (i = 0; i < len; i++) { + if (line_counter++ > 15) { + line_counter = 0; + sep_flag = 0; + addr += 16; + i--; + printf("\n%07x:\t", addr); + continue; + } + + if (sep_flag++ > 1) { + sep_flag = 1; + printf(" "); + } + + printf("%02x", *((char *)buf++)); + } + + printf("\n"); +} + +void test_dump_di(int handle) +{ + int i; + struct device_info *di = ub_dev_get(handle); + + printf("device info (%d):\n", handle); + printf(" cookie\t= 0x%08x\n", (uint32_t)di->cookie); + printf(" type\t\t= 0x%08x\n", di->type); + + if (di->type == DEV_TYP_NET) { + printf(" hwaddr\t= "); + for (i = 0; i < 6; i++) + printf("%02x ", di->di_net.hwaddr[i]); + + printf("\n"); + + } else if (di->type & DEV_TYP_STOR) { + printf(" type\t\t= %s\n", test_stor_typ(di->type)); + printf(" blk size\t\t= %d\n", (unsigned int)di->di_stor.block_size); + printf(" blk count\t\t= %d\n", (unsigned int)di->di_stor.block_count); + } +} diff --git a/examples/api/glue.c b/examples/api/glue.c new file mode 100644 index 0000000000..eff6a7e62f --- /dev/null +++ b/examples/api/glue.c @@ -0,0 +1,404 @@ +/* + * (C) Copyright 2007-2008 Semihalf, Rafal Jaworowski + * + * 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 +#include +#include + +#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; +} diff --git a/examples/api/glue.h b/examples/api/glue.h new file mode 100644 index 0000000000..6bf47d07c8 --- /dev/null +++ b/examples/api/glue.h @@ -0,0 +1,80 @@ +/* + * (C) Copyright 2007 Semihalf + * + * Written by: Rafal Jaworowski + * + * 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 + * + */ + +/* + * This is the header file for conveniency wrapper routines (API glue) + */ + +#ifndef _API_GLUE_H_ +#define _API_GLUE_H_ + +#define API_SEARCH_LEN (3 * 1024 * 1024) /* 3MB search range */ + +#define UB_MAX_MR 5 /* max mem regions number */ +#define UB_MAX_DEV 6 /* max devices number */ + +extern void *syscall_ptr; +extern uint32_t search_hint; + +int syscall(int, int *, ...); +int api_search_sig(struct api_signature **sig); + +/* + * The ub_ library calls are part of the application, not U-Boot code! They + * are front-end wrappers that are used by the consumer application: they + * prepare arguments for particular syscall and jump to the low level + * syscall() + */ + +/* console */ +int ub_getc(void); +int ub_tstc(void); +void ub_putc(char c); +void ub_puts(const char *s); + +/* system */ +void ub_reset(void); +struct sys_info * ub_get_sys_info(void); + +/* time */ +void ub_udelay(unsigned long); +unsigned long ub_get_timer(unsigned long); + +/* env vars */ +char * ub_env_get(const char *name); +void ub_env_set(const char *name, char *value); +const char * ub_env_enum(const char *last); + +/* devices */ +int ub_dev_enum(void); +int ub_dev_open(int handle); +int ub_dev_close(int handle); +int ub_dev_read(int handle, void *buf, lbasize_t len, + lbastart_t start, lbasize_t *rlen); +int ub_dev_send(int handle, void *buf, int len); +int ub_dev_recv(int handle, void *buf, int len, int *rlen); +struct device_info * ub_dev_get(int); + +#endif /* _API_GLUE_H_ */ diff --git a/examples/api/libgenwrap.c b/examples/api/libgenwrap.c new file mode 100644 index 0000000000..2b62badfb8 --- /dev/null +++ b/examples/api/libgenwrap.c @@ -0,0 +1,95 @@ +/* + * (C) Copyright 2007 Semihalf + * + * Written by: Rafal Jaworowski + * + * 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 + * + * + * This is is a set of wrappers/stubs that allow to use certain routines from + * U-Boot's lib_generic in the standalone app. This way way we can re-use + * existing code e.g. operations on strings and similar. + * + */ + +#include +#include +#include + +#include "glue.h" + +/* + * printf() and vprintf() are stolen from u-boot/common/console.c + */ +void printf (const char *fmt, ...) +{ + va_list args; + uint i; + char printbuffer[256]; + + va_start (args, fmt); + + /* For this to work, printbuffer must be larger than + * anything we ever want to print. + */ + i = vsprintf (printbuffer, fmt, args); + va_end (args); + + /* Print the string */ + ub_puts (printbuffer); +} + +void vprintf (const char *fmt, va_list args) +{ + uint i; + char printbuffer[256]; + + /* For this to work, printbuffer must be larger than + * anything we ever want to print. + */ + i = vsprintf (printbuffer, fmt, args); + + /* Print the string */ + ub_puts (printbuffer); +} + +void putc (const char c) +{ + ub_putc(c); +} + +void udelay(unsigned long usec) +{ + ub_udelay(usec); +} + +void do_reset (void) +{ + ub_reset(); +} + +void *malloc (size_t len) +{ + return NULL; +} + +void hang (void) +{ + while (1) ; +}