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/* OpenPICC Main Program
* (C) 2006 by Harald Welte <hwelte@hmw-consulting.de>
*
* 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 <errno.h>
#include <include/lib_AT91SAM7.h>
#include <include/openpcd.h>
#include <os/dbgu.h>
#include <os/led.h>
#include <os/pcd_enumerate.h>
#include <os/usb_handler.h>
#include "../openpcd.h"
#include <os/main.h>
#include <os/pwm.h>
#include <os/tc_cdiv.h>
#include <os/pio_irq.h>
#include <picc/da.h>
#include <picc/pll.h>
#include <picc/ssc_picc.h>
#include <picc/load_modulation.h>
static const uint16_t cdivs[] = { 8192, 2048, 1024, 512, 128, 64, 32, 16 };
static uint8_t cdiv_idx = 6;
static uint16_t duty_percent = 22;
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
static uint32_t pwm_freq[] = { 105937, 211875, 423750, 847500 };
static uint8_t pwm_freq_idx = 0;
static uint8_t load_mod = 0;
#define DA_BASELINE 192
void _init_func(void)
{
/* low-level hardware initialization */
pio_irq_init();
pll_init();
da_init();
load_mod_init();
tc_cdiv_init();
//tc_fdt_init();
pwm_init();
adc_init();
ssc_rx_init();
ssc_tx_init();
/* high-level protocol */
decoder_init();
opicc_usbapi_init();
AT91F_PIO_CfgInput(AT91C_BASE_PIOA, OPENPICC_PIO_BOOTLDR);
da_comp_carr(DA_BASELINE);
}
static void help(void)
{
DEBUGPCR("q: da decrease w: da increase\r\n"
"e: da retransmit P: PLL inhibit toggle");
DEBUGPCR("o: decrease duty p: increase duty\r\n"
"k: stop pwm l: start pwn\r\n"
"n: decrease freq m: incresae freq");
DEBUGPCR("u: PA23 const 1 y: PA23 const 0\r\n"
"t: PA23 PWM0 L: display PLL LOCK\r\n"
"{: decrease cdiv_idx }: increse cdiv idx\r\n"
"<: decrease cdiv_phase >: increase cdiv_phase");
DEBUGPCR("v: decrease load_mod b: increase load_mod\r\n"
"B: read button S: toggle nSLAVE_RESET\r\n"
"a: SSC stop s: SSC start\r\n"
"d: SSC mode select T: TC_CDIV_HELP enable\r\n");
}
int _main_dbgu(char key)
{
static uint8_t poti = DA_BASELINE;
static uint8_t pll_inh = 1;
static uint8_t ssc_mode = 1;
static uint8_t sync_enabled = 0;
DEBUGPCRF("main_dbgu");
switch (key) {
case 'q':
if (poti > 0)
poti--;
da_comp_carr(poti);
DEBUGPCRF("DA: %u", poti);
break;
case 'w':
if (poti < 255)
poti++;
da_comp_carr(poti);
DEBUGPCRF("DA: %u", poti);
break;
case 'e':
da_comp_carr(poti);
DEBUGPCRF("DA: %u", poti);
break;
case 'P':
pll_inh++;
pll_inh &= 0x01;
pll_inhibit(pll_inh);
DEBUGPCRF("PLL Inhibit: %u", pll_inh);
break;
case 'L':
DEBUGPCRF("PLL Lock: %u", pll_is_locked());
break;
case 'o':
if (duty_percent >= 1)
duty_percent--;
pwm_duty_set_percent(0, duty_percent);
break;
case 'p':
if (duty_percent <= 99)
duty_percent++;
pwm_duty_set_percent(0, duty_percent);
break;
case 'k':
pwm_stop(0);
break;
case 'l':
pwm_start(0);
break;
case 'n':
if (pwm_freq_idx > 0) {
pwm_freq_idx--;
pwm_stop(0);
pwm_freq_set(0, pwm_freq[pwm_freq_idx]);
pwm_start(0);
pwm_duty_set_percent(0, 22); /* 22% of 9.43uS = 2.07uS */
}
break;
case 'm':
if (pwm_freq_idx < ARRAY_SIZE(pwm_freq)-1) {
pwm_freq_idx++;
pwm_stop(0);
pwm_freq_set(0, pwm_freq[pwm_freq_idx]);
pwm_start(0);
pwm_duty_set_percent(0, 22); /* 22% of 9.43uS = 2.07uS */
}
break;
case 'u':
DEBUGPCRF("PA23 output high");
AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, AT91C_PIO_PA23);
AT91F_PIO_SetOutput(AT91C_BASE_PIOA, AT91C_PIO_PA23);
break;
case 'y':
DEBUGPCRF("PA23 output low");
AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, AT91C_PIO_PA23);
AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, AT91C_PIO_PA23);
break;
case 't':
DEBUGPCRF("PA23 PeriphA (PWM)");
AT91F_PIO_CfgPeriph(AT91C_BASE_PIOA, 0, AT91C_PA23_PWM0);
break;
case '?':
help();
break;
case '<':
tc_cdiv_phase_inc();
break;
case '>':
tc_cdiv_phase_dec();
break;
case '{':
if (cdiv_idx > 0)
cdiv_idx--;
tc_cdiv_set_divider(cdivs[cdiv_idx]);
break;
case '}':
if (cdiv_idx < ARRAY_SIZE(cdivs)-1)
cdiv_idx++;
tc_cdiv_set_divider(cdivs[cdiv_idx]);
break;
case 'v':
if (load_mod > 0)
load_mod--;
load_mod_level(load_mod);
DEBUGPCR("load_mod: %u\n", load_mod);
break;
case 'b':
if (load_mod < 3)
load_mod++;
load_mod_level(load_mod);
DEBUGPCR("load_mod: %u\n", load_mod);
break;
case 'B':
DEBUGPCRF("Button status: %u\n",
AT91F_PIO_IsInputSet(AT91C_BASE_PIOA, AT91F_PIO_IsInputSet));
break;
case 'S':
if (AT91F_PIO_IsOutputSet(AT91C_BASE_PIOA, OPENPICC_PIO_nSLAVE_RESET)) {
AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPICC_PIO_nSLAVE_RESET);
DEBUGPCRF("nSLAVE_RESET == LOW");
} else {
AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPICC_PIO_nSLAVE_RESET);
DEBUGPCRF("nSLAVE_RESET == HIGH");
}
break;
case 'a':
DEBUGPCRF("SSC RX STOP");
ssc_rx_stop();
break;
case 's':
DEBUGPCRF("SSC RX START");
ssc_rx_start();
break;
case 'd':
ssc_mode++;
if (ssc_mode >= 6)
ssc_mode = 0;
ssc_rx_mode_set(ssc_mode);
DEBUGPCRF("SSC MODE %u", ssc_mode);
break;
case 'T':
if (sync_enabled) {
tc_cdiv_sync_disable();
sync_enabled = 0;
} else {
tc_cdiv_sync_enable();
sync_enabled = 1;
}
break;
}
tc_cdiv_print();
//tc_fdt_print();
ssc_print();
return -EINVAL;
}
void _main_func(void)
{
/* first we try to get rid of pending to-be-sent stuff */
usb_out_process();
/* next we deal with incoming requests from USB EP1 (OUT) */
usb_in_process();
udp_unthrottle();
ssc_rx_unthrottle();
}
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