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authorPeter Tyser <ptyser@xes-inc.com>2009-07-10 11:03:19 -0500
committerWolfgang Denk <wd@denx.de>2009-07-21 00:13:21 +0200
commit1bc1538613d66cef3cbce680fc8d7c3561a0fbd0 (patch)
treef832202519d4077e8ca735948198691f054fe968 /examples/smc911x_eeprom.c
parentb220c64d86f7c705a183302c3b50076d7e5d876c (diff)
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Move examples/ to examples/standalone
The current files in examples are all standalone application examples, so put them in their own subdirectory for organizational purposes Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'examples/smc911x_eeprom.c')
-rw-r--r--examples/smc911x_eeprom.c383
1 files changed, 0 insertions, 383 deletions
diff --git a/examples/smc911x_eeprom.c b/examples/smc911x_eeprom.c
deleted file mode 100644
index bf22f0a..0000000
--- a/examples/smc911x_eeprom.c
+++ /dev/null
@@ -1,383 +0,0 @@
-/*
- * smc911x_eeprom.c - EEPROM interface to SMC911x parts.
- * Only tested on SMSC9118 though ...
- *
- * Copyright 2004-2008 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- *
- * Based on smc91111_eeprom.c which:
- * Heavily borrowed from the following peoples GPL'ed software:
- * - Wolfgang Denk, DENX Software Engineering, wd@denx.de
- * Das U-boot
- * - Ladislav Michl ladis@linux-mips.org
- * A rejected patch on the U-Boot mailing list
- */
-
-#include <common.h>
-#include <exports.h>
-
-#ifdef CONFIG_DRIVER_SMC911X
-
-#include "../drivers/net/smc911x.h"
-
-/**
- * smsc_ctrlc - detect press of CTRL+C (common ctrlc() isnt exported!?)
- */
-static int smsc_ctrlc(void)
-{
- return (tstc() && getc() == 0x03);
-}
-
-/**
- * usage - dump usage information
- */
-static void usage(void)
-{
- puts(
- "MAC/EEPROM Commands:\n"
- " P : Print the MAC addresses\n"
- " D : Dump the EEPROM contents\n"
- " M : Dump the MAC contents\n"
- " C : Copy the MAC address from the EEPROM to the MAC\n"
- " W : Write a register in the EEPROM or in the MAC\n"
- " Q : Quit\n"
- "\n"
- "Some commands take arguments:\n"
- " W <E|M> <register> <value>\n"
- " E: EEPROM M: MAC\n"
- );
-}
-
-/**
- * dump_regs - dump the MAC registers
- *
- * Registers 0x00 - 0x50 are FIFOs. The 0x50+ are the control registers
- * and they're all 32bits long. 0xB8+ are reserved, so don't bother.
- */
-static void dump_regs(void)
-{
- u8 i, j = 0;
- for (i = 0x50; i < 0xB8; i += sizeof(u32))
- printf("%02x: 0x%08x %c", i,
- smc911x_reg_read(CONFIG_DRIVER_SMC911X_BASE + i),
- (j++ % 2 ? '\n' : ' '));
-}
-
-/**
- * do_eeprom_cmd - handle eeprom communication
- */
-static int do_eeprom_cmd(int cmd, u8 reg)
-{
- if (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY) {
- printf("eeprom_cmd: busy at start (E2P_CMD = 0x%08x)\n",
- smc911x_reg_read(E2P_CMD));
- return -1;
- }
-
- smc911x_reg_write(E2P_CMD, E2P_CMD_EPC_BUSY | cmd | reg);
-
- while (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY)
- if (smsc_ctrlc()) {
- printf("eeprom_cmd: timeout (E2P_CMD = 0x%08x)\n",
- smc911x_reg_read(E2P_CMD));
- return -1;
- }
-
- return 0;
-}
-
-/**
- * read_eeprom_reg - read specified register in EEPROM
- */
-static u8 read_eeprom_reg(u8 reg)
-{
- int ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_READ, reg);
- return (ret ? : smc911x_reg_read(E2P_DATA));
-}
-
-/**
- * write_eeprom_reg - write specified value into specified register in EEPROM
- */
-static int write_eeprom_reg(u8 value, u8 reg)
-{
- int ret;
-
- /* enable erasing/writing */
- ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_EWEN, reg);
- if (ret)
- goto done;
-
- /* erase the eeprom reg */
- ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_ERASE, reg);
- if (ret)
- goto done;
-
- /* write the eeprom reg */
- smc911x_reg_write(E2P_DATA, value);
- ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_WRITE, reg);
- if (ret)
- goto done;
-
- /* disable erasing/writing */
- ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_EWDS, reg);
-
- done:
- return ret;
-}
-
-/**
- * skip_space - find first non-whitespace in given pointer
- */
-static char *skip_space(char *buf)
-{
- while (buf[0] == ' ' || buf[0] == '\t')
- ++buf;
- return buf;
-}
-
-/**
- * write_stuff - handle writing of MAC registers / eeprom
- */
-static void write_stuff(char *line)
-{
- char dest;
- char *endp;
- u8 reg;
- u32 value;
-
- /* Skip over the "W " part of the command */
- line = skip_space(line + 1);
-
- /* Figure out destination */
- switch (line[0]) {
- case 'E':
- case 'M':
- dest = line[0];
- break;
- default:
- invalid_usage:
- printf("ERROR: Invalid write usage\n");
- usage();
- return;
- }
-
- /* Get the register to write */
- line = skip_space(line + 1);
- reg = simple_strtoul(line, &endp, 16);
- if (line == endp)
- goto invalid_usage;
-
- /* Get the value to write */
- line = skip_space(endp);
- value = simple_strtoul(line, &endp, 16);
- if (line == endp)
- goto invalid_usage;
-
- /* Check for trailing cruft */
- line = skip_space(endp);
- if (line[0])
- goto invalid_usage;
-
- /* Finally, execute the command */
- if (dest == 'E') {
- printf("Writing EEPROM register %02x with %02x\n", reg, value);
- write_eeprom_reg(value, reg);
- } else {
- printf("Writing MAC register %02x with %08x\n", reg, value);
- smc911x_reg_write(CONFIG_DRIVER_SMC911X_BASE + reg, value);
- }
-}
-
-/**
- * copy_from_eeprom - copy MAC address in eeprom to address registers
- */
-static void copy_from_eeprom(void)
-{
- ulong addrl =
- read_eeprom_reg(0x01) |
- read_eeprom_reg(0x02) << 8 |
- read_eeprom_reg(0x03) << 16 |
- read_eeprom_reg(0x04) << 24;
- ulong addrh =
- read_eeprom_reg(0x05) |
- read_eeprom_reg(0x06) << 8;
- smc911x_set_mac_csr(ADDRL, addrl);
- smc911x_set_mac_csr(ADDRH, addrh);
- puts("EEPROM contents copied to MAC\n");
-}
-
-/**
- * print_macaddr - print MAC address registers and MAC address in eeprom
- */
-static void print_macaddr(void)
-{
- puts("Current MAC Address in MAC: ");
- ulong addrl = smc911x_get_mac_csr(ADDRL);
- ulong addrh = smc911x_get_mac_csr(ADDRH);
- printf("%02x:%02x:%02x:%02x:%02x:%02x\n",
- (u8)(addrl), (u8)(addrl >> 8), (u8)(addrl >> 16),
- (u8)(addrl >> 24), (u8)(addrh), (u8)(addrh >> 8));
-
- puts("Current MAC Address in EEPROM: ");
- int i;
- for (i = 1; i < 6; ++i)
- printf("%02x:", read_eeprom_reg(i));
- printf("%02x\n", read_eeprom_reg(i));
-}
-
-/**
- * dump_eeprom - dump the whole content of the EEPROM
- */
-static void dump_eeprom(void)
-{
- int i;
- puts("EEPROM:\n");
- for (i = 0; i < 7; ++i)
- printf("%02x: 0x%02x\n", i, read_eeprom_reg(i));
-}
-
-/**
- * smc911x_init - get the MAC/EEPROM up and ready for use
- */
-static int smc911x_init(void)
-{
- /* See if there is anything there */
- if (!smc911x_detect_chip())
- return 1;
-
- smc911x_reset();
-
- /* Make sure we set EEDIO/EECLK to the EEPROM */
- if (smc911x_reg_read(GPIO_CFG) & GPIO_CFG_EEPR_EN) {
- while (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY)
- if (smsc_ctrlc()) {
- printf("init: timeout (E2P_CMD = 0x%08x)\n",
- smc911x_reg_read(E2P_CMD));
- return 1;
- }
- smc911x_reg_write(GPIO_CFG, smc911x_reg_read(GPIO_CFG) & ~GPIO_CFG_EEPR_EN);
- }
-
- return 0;
-}
-
-/**
- * getline - consume a line of input and handle some escape sequences
- */
-static char *getline(void)
-{
- static char buffer[100];
- char c;
- size_t i;
-
- i = 0;
- while (1) {
- buffer[i] = '\0';
- while (!tstc())
- continue;
-
- c = getc();
- /* Convert to uppercase */
- if (c >= 'a' && c <= 'z')
- c -= ('a' - 'A');
-
- switch (c) {
- case '\r': /* Enter/Return key */
- case '\n':
- puts("\n");
- return buffer;
-
- case 0x03: /* ^C - break */
- return NULL;
-
- case 0x5F:
- case 0x08: /* ^H - backspace */
- case 0x7F: /* DEL - backspace */
- if (i) {
- puts("\b \b");
- i--;
- }
- break;
-
- default:
- /* Ignore control characters */
- if (c < 0x20)
- break;
- /* Queue up all other characters */
- buffer[i++] = c;
- printf("%c", c);
- break;
- }
- }
-}
-
-/**
- * smc911x_eeprom - our application's main() function
- */
-int smc911x_eeprom(int argc, char *argv[])
-{
- /* Print the ABI version */
- app_startup(argv);
- if (XF_VERSION != get_version()) {
- printf("Expects ABI version %d\n", XF_VERSION);
- printf("Actual U-Boot ABI version %lu\n", get_version());
- printf("Can't run\n\n");
- return 1;
- }
-
- /* Initialize the MAC/EEPROM somewhat */
- puts("\n");
- if (smc911x_init())
- return 1;
-
- /* Dump helpful usage information */
- puts("\n");
- usage();
- puts("\n");
-
- while (1) {
- char *line;
-
- /* Send the prompt and wait for a line */
- puts("eeprom> ");
- line = getline();
-
- /* Got a ctrl+c */
- if (!line)
- return 0;
-
- /* Eat leading space */
- line = skip_space(line);
-
- /* Empty line, try again */
- if (!line[0])
- continue;
-
- /* Only accept 1 letter commands */
- if (line[0] && line[1] && line[1] != ' ' && line[1] != '\t')
- goto unknown_cmd;
-
- /* Now parse the command */
- switch (line[0]) {
- case 'W': write_stuff(line); break;
- case 'D': dump_eeprom(); break;
- case 'M': dump_regs(); break;
- case 'C': copy_from_eeprom(); break;
- case 'P': print_macaddr(); break;
- unknown_cmd:
- default: puts("ERROR: Unknown command!\n\n");
- case '?':
- case 'H': usage(); break;
- case 'Q': return 0;
- }
- }
-}
-
-#else
-int smc911x_eeprom(int argc, char *argv[])
-{
- puts("Not supported for this board\n");
- return 1;
-}
-#endif