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/* boot loader for Calypso phones */
/* (C) 2010 by Ingo Albrecht <prom@berlin.ccc.de>
*
* All Rights Reserved
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <debug.h>
#include <memory.h>
#include <rffe.h>
#include <keypad.h>
#include <board.h>
#include <console.h>
#include <abb/twl3025.h>
#include <display/st7558.h>
#include <rf/trf6151.h>
#include <comm/sercomm.h>
#include <calypso/clock.h>
#include <calypso/tpu.h>
#include <calypso/tsp.h>
#include <calypso/irq.h>
#include <calypso/misc.h>
#include <calypso/uart.h>
#include <calypso/timer.h>
#include <layer1/sync.h>
#include <layer1/tpu_window.h>
#include "protocol.h"
struct loader_mem_read {
uint8_t cmd;
uint8_t nbytes;
uint32_t address;
uint8_t data[0];
} __attribute__((__packed__));
uint32_t htonl(uint32_t hostlong) {
#if BYTE_ORDER==LITTLE_ENDIAN
return (hostlong>>24) | ((hostlong&0xff0000)>>8) |
((hostlong&0xff00)<<8) | (hostlong<<24);
#else
return hostlong;
#endif
}
uint32_t ntohl(uint32_t hostlong) __attribute__((weak,alias("htonl")));
uint16_t htons(uint16_t hostshort) {
#if BYTE_ORDER==LITTLE_ENDIAN
return ((hostshort>>8)&0xff) | (hostshort<<8);
#else
return hostshort;
#endif
}
uint16_t ntohs(uint16_t hostshort) __attribute__((weak,alias("htons")));
#define SCAN
#ifdef SCAN
/* if scanning is enabled, scan from 0 ... 124 */
#define BASE_ARFCN 0
#else
/* fixed ARFCN in GSM1800 at which Harald has his GSM test license */
#define BASE_ARFCN 871
#endif
/* FIXME: We need proper calibrated delay loops at some point! */
void delay_us(unsigned int us)
{
volatile unsigned int i;
for (i= 0; i < us*4; i++) { i; }
}
void delay_ms(unsigned int ms)
{
volatile unsigned int i;
for (i= 0; i < ms*1300; i++) { i; }
}
/* Main Program */
const char *hr = "======================================================================\n";
static void key_handler(enum key_codes code, enum key_states state);
static void cmd_handler(uint8_t dlci, struct msgb *msg);
int flag = 0;
void poweroff(void) {
unsigned i;
for(i = 0; i < 10; i++) {
uart_poll(SERCOMM_UART_NR);
delay_ms(10);
}
twl3025_power_off();
}
int main(void)
{
/* Always disable wdt (some platforms enable it on boot) */
wdog_enable(0);
/* Initialize TWL3025 for power control */
twl3025_init();
/* Initialize UART without interrupts */
uart_init(SERCOMM_UART_NR, 0);
uart_baudrate(SERCOMM_UART_NR, UART_115200);
/* Initialize HDLC subsystem */
sercomm_init();
/* Say hi */
puts("\n\nOSMOCOM Calypso loader\n");
puts(hr);
/* Set up a key handler for powering off */
keypad_set_handler(&key_handler);
/* Set up loader communications */
sercomm_register_rx_cb(SC_DLCI_LOADER, &cmd_handler);
/* Wait for events */
while (1) {
keypad_poll();
uart_poll(SERCOMM_UART_NR);
}
/* NOT REACHED */
twl3025_power_off();
}
static void cmd_handler(uint8_t dlci, struct msgb *msg) {
if(msg->data_len < 1) {
return;
}
uint8_t command = 0; //= msgb_get_u8(msg);
printf("command %u\n", command);
msgb_free(msg);
return;
uint8_t nbytes;
uint32_t address;
struct msgb *reply;
switch(command) {
case LOADER_PING:
printf("ping\n");
//sercomm_sendmsg(dlci, msg);
//msg = NULL;
break;
case LOADER_MEM_READ:
nbytes = msgb_get_u8(msg);
address = msgb_get_u32(msg);
printf("mem read %u @ %p\n", nbytes, (void*)address);
reply = sercomm_alloc_msgb(6 + nbytes);
msgb_put_u8(reply, LOADER_MEM_READ);
msgb_put_u8(reply, nbytes);
msgb_put_u32(reply, address);
memcpy(msgb_put(reply, nbytes), (void*)address, nbytes);
sercomm_sendmsg(dlci, reply);
break;
}
if(msg) {
msgb_free(msg);
}
}
static void key_handler(enum key_codes code, enum key_states state)
{
if (state != PRESSED)
return;
switch (code) {
case KEY_POWER:
poweroff();
break;
default:
break;
}
}
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