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Makefile
(615 B)
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api_public.h
(4.38 KB)
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console.c
(2.18 KB)
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copy.c
(5.35 KB)
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devicename.c
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disk.c
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elf_freebsd.c
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gfx_fb.c
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glue.c
(10.16 KB)
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glue.h
(3.32 KB)
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libuboot.h
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module.c
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net.c
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reboot.c
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time.c
(1.83 KB)
Editing: glue.c
/*- * Copyright (c) 2007-2008 Semihalf, Rafal Jaworowski <raj@semihalf.com> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/types.h> #include <zlib.h> #include <stand.h> #include "api_public.h" #include "glue.h" #ifdef DEBUG #define debugf(fmt, args...) do { printf("%s(): ", __func__); printf(fmt,##args); } while (0) #else #define debugf(fmt, args...) #endif /* Some random address used by U-Boot. */ extern long uboot_address; 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 = crc32(0, Z_NULL, 0); checksum = crc32(s.checksum, (void *)&s, sizeof(struct api_signature)); if (checksum != sig->checksum) return (0); return (1); } /* * Checks to see if API signature's address was given to us as a command line * argument by U-Boot. * * returns 1/0 depending on found/not found result */ int api_parse_cmdline_sig(int argc, char **argv, struct api_signature **sig) { unsigned long api_address; int c; api_address = 0; opterr = 0; optreset = 1; optind = 1; while ((c = getopt (argc, argv, "a:")) != -1) switch (c) { case 'a': api_address = strtoul(optarg, NULL, 16); break; default: break; } if (api_address != 0) { *sig = (struct api_signature *)api_address; if (valid_sig(*sig)) return (1); } return (0); } /* * 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, *spend; if (sig == NULL) return (0); if (uboot_address == 0) uboot_address = 255 * 1024 * 1024; sp = (void *)(uboot_address & API_SIG_SEARCH_MASK); spend = sp + API_SIG_SEARCH_LEN - API_SIG_MAGLEN; while (sp < spend) { if (!bcmp(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, &c)) return (-1); return (c); } int ub_tstc(void) { int t; if (!syscall(API_TSTC, NULL, &t)) return (-1); return (t); } void ub_putc(const char c) { syscall(API_PUTC, NULL, &c); } void ub_puts(const char *s) { syscall(API_PUTS, NULL, s); } /**************************************** * * system * ****************************************/ void ub_reset(void) { syscall(API_RESET, NULL); while (1); /* fallback if API_RESET failed */ __unreachable(); } 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, &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 = 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); } char * ub_stor_type(int type) { if (type & DT_STOR_IDE) return ("IDE"); if (type & DT_STOR_SCSI) return ("SCSI"); if (type & DT_STOR_USB) return ("USB"); if (type & DT_STOR_MMC) return ("MMC"); if (type & DT_STOR_SATA) return ("SATA"); return ("Unknown"); } char * ub_mem_type(int flags) { switch (flags & 0x000F) { case MR_ATTR_FLASH: return ("FLASH"); case MR_ATTR_DRAM: return ("DRAM"); case MR_ATTR_SRAM: return ("SRAM"); default: return ("Unknown"); } } void ub_dump_di(int handle) { struct device_info *di = ub_dev_get(handle); int i; printf("device info (%d):\n", handle); printf(" cookie\t= %p\n", 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", ub_stor_type(di->type)); printf(" blk size\t\t= %ld\n", di->di_stor.block_size); printf(" blk count\t\t= %ld\n", di->di_stor.block_count); } } void ub_dump_si(struct sys_info *si) { int i; printf("sys info:\n"); printf(" clkbus\t= %ld MHz\n", si->clk_bus / 1000 / 1000); printf(" clkcpu\t= %ld MHz\n", si->clk_cpu / 1000 / 1000); printf(" bar\t\t= 0x%08lx\n", 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); printf(" type\t= %s\n", ub_mem_type(si->mr[i].flags)); printf("---\n"); } } /**************************************** * * env vars * ****************************************/ char * ub_env_get(const char *name) { char *value; if (!syscall(API_ENV_GET, NULL, name, &value)) return (NULL); return (value); } void ub_env_set(const char *name, char *value) { syscall(API_ENV_SET, NULL, name, value); } static char env_name[256]; const char * ub_env_enum(const char *last) { const char *env, *str; int i; /* * 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 */ env = NULL; if (!syscall(API_ENV_ENUM, NULL, last, &env)) return (NULL); if (env == NULL || last == 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); }
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