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-rw-r--r--board/linkstation/avr.c280
1 files changed, 0 insertions, 280 deletions
diff --git a/board/linkstation/avr.c b/board/linkstation/avr.c
deleted file mode 100644
index 62e586b..0000000
--- a/board/linkstation/avr.c
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- * avr.c
- *
- * AVR functions
- *
- * Copyright (C) 2006 Mihai Georgian <u-boot@linuxnotincluded.org.uk>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-#include <common.h>
-#include <ns16550.h>
-#include <stdio_dev.h>
-
-/* Button codes from the AVR */
-#define PWRR 0x20 /* Power button release */
-#define PWRP 0x21 /* Power button push */
-#define RESR 0x22 /* Reset button release */
-#define RESP 0x23 /* Reset button push */
-#define AVRINIT 0x33 /* Init complete */
-#define AVRRESET 0x31 /* Reset request */
-
-/* LED commands */
-#define PWRBLINKSTRT '[' /* Blink power LED */
-#define PWRBLINKSTOP 'Z' /* Solid power LED */
-#define HDDLEDON 'W' /* HDD LED on */
-#define HDDLEDOFF 'V' /* HDD LED off */
-#define HDDBLINKSTRT 'Y' /* HDD LED start blink */
-#define HDDBLINKSTOP 'X' /* HDD LED stop blink */
-
-/* Timings for LEDs blinking to show choice */
-#define PULSETIME 250 /* msecs */
-#define LONGPAUSE (5 * PULSETIME)
-
-/* Button press times */
-#define PUSHHOLD 1000 /* msecs */
-#define NOBUTTON (6 * (LONGPAUSE+PULSETIME))
-
-/* Boot and console choices */
-#define MAX_BOOT_CHOICE 3
-
-static char *consoles[] = {
- "serial",
-#if defined(CONFIG_NETCONSOLE)
- "nc",
-#endif
-};
-#define MAX_CONS_CHOICE (sizeof(consoles)/sizeof(char *))
-
-#if !defined(CONFIG_NETCONSOLE)
-#define DEF_CONS_CHOICE 0
-#else
-#define DEF_CONS_CHOICE 1
-#endif
-
-#define perror(fmt, args...) printf("%s: " fmt, __FUNCTION__ , ##args)
-
-extern void miconCntl_SendCmd(unsigned char dat);
-extern void miconCntl_DisWDT(void);
-
-static int boot_stop;
-
-static int boot_choice = 1;
-static int cons_choice = DEF_CONS_CHOICE;
-
-static char envbuffer[16];
-
-void init_AVR_DUART (void)
-{
- NS16550_t AVR_port = (NS16550_t) CONFIG_SYS_NS16550_COM2;
- int clock_divisor = CONFIG_SYS_NS16550_CLK / 16 / 9600;
-
- /*
- * AVR port init sequence taken from
- * the original Linkstation init code
- * Normal U-Boot serial reinit doesn't
- * work because the AVR uses even parity
- */
- AVR_port->lcr = 0x00;
- AVR_port->ier = 0x00;
- AVR_port->lcr = UART_LCR_BKSE;
- AVR_port->dll = clock_divisor & 0xff;
- AVR_port->dlm = (clock_divisor >> 8) & 0xff;
- AVR_port->lcr = UART_LCR_WLS_8 | UART_LCR_PEN | UART_LCR_EPS;
- AVR_port->mcr = 0x00;
- AVR_port->fcr = UART_FCR_FIFO_EN | UART_FCR_RXSR | UART_FCR_TXSR;
-
- miconCntl_DisWDT();
-
- boot_stop = 0;
- miconCntl_SendCmd(PWRBLINKSTRT);
-}
-
-static inline int avr_tstc(void)
-{
- return (NS16550_tstc((NS16550_t)CONFIG_SYS_NS16550_COM2));
-}
-
-static inline char avr_getc(void)
-{
- return (NS16550_getc((NS16550_t)CONFIG_SYS_NS16550_COM2));
-}
-
-static int push_timeout(char button_code)
-{
- ulong push_start = get_timer(0);
- while (get_timer(push_start) <= PUSHHOLD)
- if (avr_tstc() && avr_getc() == button_code)
- return 0;
- return 1;
-}
-
-static void next_boot_choice(void)
-{
- ulong return_start;
- ulong pulse_start;
- int on_times;
- int button_on;
- int led_state;
- char c;
-
- button_on = 0;
- return_start = get_timer(0);
-
- on_times = boot_choice;
- led_state = 0;
- miconCntl_SendCmd(HDDLEDOFF);
- pulse_start = get_timer(0);
-
- while (get_timer(return_start) <= NOBUTTON || button_on) {
- if (avr_tstc()) {
- c = avr_getc();
- if (c == PWRP)
- button_on = 1;
- else if (c == PWRR) {
- button_on = 0;
- return_start = get_timer(0);
- if (++boot_choice > MAX_BOOT_CHOICE)
- boot_choice = 1;
- sprintf(envbuffer, "bootcmd%d", boot_choice);
- if (getenv(envbuffer)) {
- sprintf(envbuffer, "run bootcmd%d", boot_choice);
- setenv("bootcmd", envbuffer);
- }
- on_times = boot_choice;
- led_state = 1;
- miconCntl_SendCmd(HDDLEDON);
- pulse_start = get_timer(0);
- } else {
- perror("Unexpected code: 0x%02X\n", c);
- }
- }
- if (on_times && get_timer(pulse_start) > PULSETIME) {
- if (led_state == 1) {
- --on_times;
- led_state = 0;
- miconCntl_SendCmd(HDDLEDOFF);
- } else {
- led_state = 1;
- miconCntl_SendCmd(HDDLEDON);
- }
- pulse_start = get_timer(0);
- }
- if (!on_times && get_timer(pulse_start) > LONGPAUSE) {
- on_times = boot_choice;
- led_state = 1;
- miconCntl_SendCmd(HDDLEDON);
- pulse_start = get_timer(0);
- }
- }
- if (led_state)
- miconCntl_SendCmd(HDDLEDOFF);
-}
-
-void next_cons_choice(int console)
-{
- ulong return_start;
- ulong pulse_start;
- int on_times;
- int button_on;
- int led_state;
- char c;
-
- button_on = 0;
- cons_choice = console;
- return_start = get_timer(0);
-
- on_times = cons_choice+1;
- led_state = 1;
- miconCntl_SendCmd(HDDLEDON);
- pulse_start = get_timer(0);
-
- while (get_timer(return_start) <= NOBUTTON || button_on) {
- if (avr_tstc()) {
- c = avr_getc();
- if (c == RESP)
- button_on = 1;
- else if (c == RESR) {
- button_on = 0;
- return_start = get_timer(0);
- cons_choice = (cons_choice + 1) % MAX_CONS_CHOICE;
- console_assign(stdin, consoles[cons_choice]);
- console_assign(stdout, consoles[cons_choice]);
- console_assign(stderr, consoles[cons_choice]);
- on_times = cons_choice+1;
- led_state = 0;
- miconCntl_SendCmd(HDDLEDOFF);
- pulse_start = get_timer(0);
- } else {
- perror("Unexpected code: 0x%02X\n", c);
- }
- }
- if (on_times && get_timer(pulse_start) > PULSETIME) {
- if (led_state == 0) {
- --on_times;
- led_state = 1;
- miconCntl_SendCmd(HDDLEDON);
- } else {
- led_state = 0;
- miconCntl_SendCmd(HDDLEDOFF);
- }
- pulse_start = get_timer(0);
- }
- if (!on_times && get_timer(pulse_start) > LONGPAUSE) {
- on_times = cons_choice+1;
- led_state = 0;
- miconCntl_SendCmd(HDDLEDOFF);
- pulse_start = get_timer(0);
- }
- }
- if (led_state);
- miconCntl_SendCmd(HDDLEDOFF);
-}
-
-int avr_input(void)
-{
- char avr_button;
-
- if (!avr_tstc())
- return 0;
-
- avr_button = avr_getc();
- switch (avr_button) {
- case PWRP:
- if (push_timeout(PWRR)) {
- /* Timeout before power button release */
- boot_stop = ~boot_stop;
- if (boot_stop)
- miconCntl_SendCmd(PWRBLINKSTOP);
- else
- miconCntl_SendCmd(PWRBLINKSTRT);
- /* Wait for power button release */
- while (avr_getc() != PWRR)
- ;
- } else
- /* Power button released */
- next_boot_choice();
- break;
- case RESP:
- /* Wait for Reset button release */
- while (avr_getc() != RESR)
- ;
- next_cons_choice(cons_choice);
- break;
- case AVRINIT:
- return 0;
- default:
- perror("Unexpected code: 0x%02X\n", avr_button);
- return 0;
- }
- if (boot_stop)
- return (-3);
- else
- return (-2);
-}
-
-void avr_StopBoot(void)
-{
- boot_stop = ~0;
- miconCntl_SendCmd(PWRBLINKSTOP);
-}
generated by cgit v1.1 at 2025-01-04 08:10:31 +0000