Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-30 00:21:06 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/board/trab/trab_fkt.c
kevin.morfitt@fearnside-systems.co.uk ac67804fbb Add a unified s3c24x0 header file 
This patch adds a unified s3c24x0 cpu header file that selects the header
file for the specific s3c24x0 cpu from the SOC and CPU configs defined in
board config file. This removes the current chain of s3c24-type #ifdef's
from the s3c24x0 code.

Signed-off-by: Kevin Morfitt <kevin.morfitt@fearnside-systems.co.uk>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2009-11-27 16:26:13 -06:00

1418 lines
33 KiB
C
Raw Blame History

/*
* (C) Copyright 2003
* Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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
*/
#define DEBUG
#include <common.h>
#include <exports.h>
#include <timestamp.h>
#include <asm/arch/s3c24x0_cpu.h>
#include "tsc2000.h"
#include "rs485.h"
/*
* define, to wait for the touch to be pressed, before reading coordinates in
* command do_touch. If not defined, an error message is printed, when the
* command do_touch is invoked and the touch is not pressed within an specific
* interval.
*/
#undef CONFIG_TOUCH_WAIT_PRESSED
/* max time to wait for touch is pressed */
#ifndef CONFIG_TOUCH_WAIT_PRESSED
#define TOUCH_TIMEOUT 5
#endif /* !CONFIG_TOUCH_WAIT_PRESSED */
/* assignment of CPU internal ADC channels with TRAB hardware */
#define VCC5V 2
#define VCC12V 3
/* CPLD-Register for controlling TRAB hardware functions */
#define CPLD_BUTTONS ((volatile unsigned long *)0x04020000)
#define CPLD_FILL_LEVEL ((volatile unsigned long *)0x04008000)
#define CPLD_ROTARY_SWITCH ((volatile unsigned long *)0x04018000)
#define CPLD_RS485_RE ((volatile unsigned long *)0x04028000)
/* timer configuration bits for buzzer and PWM */
#define START2 (1 << 12)
#define UPDATE2 (1 << 13)
#define INVERT2 (1 << 14)
#define RELOAD2 (1 << 15)
#define START3 (1 << 16)
#define UPDATE3 (1 << 17)
#define INVERT3 (1 << 18)
#define RELOAD3 (1 << 19)
#define PCLK 66000000
#define BUZZER_FREQ 1000 /* frequency in Hz */
#define PWM_FREQ 500
/* definitions of I2C EEPROM device address */
#define I2C_EEPROM_DEV_ADDR 0x54
/* definition for touch panel calibration points */
#define CALIB_TL 0 /* calibration point in (T)op (L)eft corner */
#define CALIB_DR 1 /* calibration point in (D)own (R)ight corner */
/* EEPROM address map */
#define SERIAL_NUMBER 8
#define TOUCH_X0 52
#define TOUCH_Y0 54
#define TOUCH_X1 56
#define TOUCH_Y1 58
#define CRC16 60
/* EEPROM stuff */
#define EEPROM_MAX_CRC_BUF 64
/* RS485 stuff */
#define RS485_MAX_RECEIVE_BUF_LEN 100
/* Bit definitions for ADCCON */
#define ADC_ENABLE_START 0x1
#define ADC_READ_START 0x2
#define ADC_STDBM 0x4
#define ADC_INP_AIN0 (0x0 << 3)
#define ADC_INP_AIN1 (0x1 << 3)
#define ADC_INP_AIN2 (0x2 << 3)
#define ADC_INP_AIN3 (0x3 << 3)
#define ADC_INP_AIN4 (0x4 << 3)
#define ADC_INP_AIN5 (0x5 << 3)
#define ADC_INP_AIN6 (0x6 << 3)
#define ADC_INP_AIN7 (0x7 << 3)
#define ADC_PRSCEN 0x4000
#define ADC_ECFLG 0x8000
/* function test functions */
int do_dip (void);
int do_info (void);
int do_vcc5v (void);
int do_vcc12v (void);
int do_buttons (void);
int do_fill_level (void);
int do_rotary_switch (void);
int do_pressure (void);
int do_v_bat (void);
int do_vfd_id (void);
int do_buzzer (char **);
int do_led (char **);
int do_full_bridge (char **);
int do_dac (char **);
int do_motor_contact (void);
int do_motor (char **);
int do_pwm (char **);
int do_thermo (char **);
int do_touch (char **);
int do_rs485 (char **);
int do_serial_number (char **);
int do_crc16 (void);
int do_power_switch (void);
int do_gain (char **);
int do_eeprom (char **);
/* helper functions */
static void adc_init (void);
static int adc_read (unsigned int channel);
static void print_identifier (void);
#ifdef CONFIG_TOUCH_WAIT_PRESSED
static void touch_wait_pressed (void);
#else
static int touch_check_pressed (void);
#endif /* CONFIG_TOUCH_WAIT_PRESSED */
static void touch_read_x_y (int *x, int *y);
static int touch_write_clibration_values (int calib_point, int x, int y);
static int rs485_send_line (const char *data);
static int rs485_receive_chars (char *data, int timeout);
static unsigned short updcrc(unsigned short icrc, unsigned char *icp,
unsigned int icnt);
#if defined(CONFIG_CMD_I2C)
static int trab_eeprom_read (char **argv);
static int trab_eeprom_write (char **argv);
int i2c_write_multiple (uchar chip, uint addr, int alen, uchar *buffer,
int len);
int i2c_read_multiple ( uchar chip, uint addr, int alen, uchar *buffer,
int len);
#endif
/*
* TRAB board specific commands. Especially commands for burn-in and function
* test.
*/
int trab_fkt (int argc, char *argv[])
{
int i;
app_startup(argv);
if (get_version () != XF_VERSION) {
printf ("Wrong XF_VERSION. Please re-compile with actual "
"u-boot sources\n");
printf ("Example expects ABI version %d\n", XF_VERSION);
printf ("Actual U-Boot ABI version %d\n", (int)get_version());
return 1;
}
debug ("argc = %d\n", argc);
for (i=0; i<=argc; ++i) {
debug ("argv[%d] = \"%s\"\n", i, argv[i] ? argv[i] : "<NULL>");
}
adc_init ();
switch (argc) {
case 0:
case 1:
break;
case 2:
if (strcmp (argv[1], "info") == 0) {
return (do_info ());
}
if (strcmp (argv[1], "dip") == 0) {
return (do_dip ());
}
if (strcmp (argv[1], "vcc5v") == 0) {
return (do_vcc5v ());
}
if (strcmp (argv[1], "vcc12v") == 0) {
return (do_vcc12v ());
}
if (strcmp (argv[1], "buttons") == 0) {
return (do_buttons ());
}
if (strcmp (argv[1], "fill_level") == 0) {
return (do_fill_level ());
}
if (strcmp (argv[1], "rotary_switch") == 0) {
return (do_rotary_switch ());
}
if (strcmp (argv[1], "pressure") == 0) {
return (do_pressure ());
}
if (strcmp (argv[1], "v_bat") == 0) {
return (do_v_bat ());
}
if (strcmp (argv[1], "vfd_id") == 0) {
return (do_vfd_id ());
}
if (strcmp (argv[1], "motor_contact") == 0) {
return (do_motor_contact ());
}
if (strcmp (argv[1], "crc16") == 0) {
return (do_crc16 ());
}
if (strcmp (argv[1], "power_switch") == 0) {
return (do_power_switch ());
}
break;
case 3:
if (strcmp (argv[1], "full_bridge") == 0) {
return (do_full_bridge (argv));
}
if (strcmp (argv[1], "dac") == 0) {
return (do_dac (argv));
}
if (strcmp (argv[1], "motor") == 0) {
return (do_motor (argv));
}
if (strcmp (argv[1], "pwm") == 0) {
return (do_pwm (argv));
}
if (strcmp (argv[1], "thermo") == 0) {
return (do_thermo (argv));
}
if (strcmp (argv[1], "touch") == 0) {
return (do_touch (argv));
}
if (strcmp (argv[1], "serial_number") == 0) {
return (do_serial_number (argv));
}
if (strcmp (argv[1], "buzzer") == 0) {
return (do_buzzer (argv));
}
if (strcmp (argv[1], "gain") == 0) {
return (do_gain (argv));
}
break;
case 4:
if (strcmp (argv[1], "led") == 0) {
return (do_led (argv));
}
if (strcmp (argv[1], "rs485") == 0) {
return (do_rs485 (argv));
}
if (strcmp (argv[1], "serial_number") == 0) {
return (do_serial_number (argv));
}
break;
case 5:
if (strcmp (argv[1], "eeprom") == 0) {
return (do_eeprom (argv));
}
break;
case 6:
if (strcmp (argv[1], "eeprom") == 0) {
return (do_eeprom (argv));
}
break;
default:
break;
}
printf ("Usage:\n<command> <parameter1> <parameter2> ...\n");
return 1;
}
void hang (void)
{
puts ("### ERROR ### Please RESET the board ###\n");
for (;;);
}
int do_info (void)
{
printf ("Stand-alone application for TRAB board function test\n");
printf ("Built: %s at %s\n", U_BOOT_DATE, U_BOOT_TIME);
return 0;
}
int do_dip (void)
{
unsigned int result = 0;
int adc_val;
int i;
/***********************************************************
DIP switch connection (according to wa4-cpu.sp.301.pdf, page 3):
SW1 - AIN4
SW2 - AIN5
SW3 - AIN6
SW4 - AIN7
"On" DIP switch position short-circuits the voltage from
the input channel (i.e. '0' conversion result means "on").
*************************************************************/
for (i = 7; i > 3; i--) {
if ((adc_val = adc_read (i)) == -1) {
printf ("Channel %d could not be read\n", i);
return 1;
}
/*
* Input voltage (switch open) is 1.8 V.
* (Vin_High/VRef)*adc_res = (1,8V/2,5V)*1023) = 736
* Set trigger at halve that value.
*/
if (adc_val < 368)
result |= (1 << (i-4));
}
/* print result to console */
print_identifier ();
for (i = 0; i < 4; i++) {
if ((result & (1 << i)) == 0)
printf("0");
else
printf("1");
}
printf("\n");
return 0;
}
int do_vcc5v (void)
{
int result;
/* VCC5V is connected to channel 2 */
if ((result = adc_read (VCC5V)) == -1) {
printf ("VCC5V could not be read\n");
return 1;
}
/*
* Calculate voltage value. Split in two parts because there is no
* floating point support. VCC5V is connected over an resistor divider:
* VCC5V=ADCval*2,5V/1023*(10K+30K)/10K.
*/
print_identifier ();
printf ("%d", (result & 0x3FF)* 10 / 1023);
printf (".%d", ((result & 0x3FF)* 10 % 1023)* 10 / 1023);
printf ("%d V\n", (((result & 0x3FF) * 10 % 1023 ) * 10 % 1023)
* 10 / 1024);
return 0;
}
int do_vcc12v (void)
{
int result;
if ((result = adc_read (VCC12V)) == -1) {
printf ("VCC12V could not be read\n");
return 1;
}
/*
* Calculate voltage value. Split in two parts because there is no
* floating point support. VCC5V is connected over an resistor divider:
* VCC12V=ADCval*2,5V/1023*(30K+270K)/30K.
*/
print_identifier ();
printf ("%d", (result & 0x3FF)* 25 / 1023);
printf (".%d V\n", ((result & 0x3FF)* 25 % 1023) * 10 / 1023);
return 0;
}
static int adc_read (unsigned int channel)
{
int j = 1000; /* timeout value for wait loop in us */
int result;
struct s3c2400_adc *padc;
padc = s3c2400_get_base_adc();
channel &= 0x7;
padc->ADCCON &= ~ADC_STDBM; /* select normal mode */
padc->ADCCON &= ~(0x7 << 3); /* clear the channel bits */
padc->ADCCON |= ((channel << 3) | ADC_ENABLE_START);
while (j--) {
if ((padc->ADCCON & ADC_ENABLE_START) == 0)
break;
udelay (1);
}
if (j == 0) {
printf("%s: ADC timeout\n", __FUNCTION__);
padc->ADCCON |= ADC_STDBM; /* select standby mode */
return -1;
}
result = padc->ADCDAT & 0x3FF;
padc->ADCCON |= ADC_STDBM; /* select standby mode */
debug ("%s: channel %d, result[DIGIT]=%d\n", __FUNCTION__,
(padc->ADCCON >> 3) & 0x7, result);
/*
* Wait for ADC to be ready for next conversion. This delay value was
* estimated, because the datasheet does not specify a value.
*/
udelay (1000);
return (result);
}
static void adc_init (void)
{
struct s3c2400_adc *padc;
padc = s3c2400_get_base_adc();
padc->ADCCON &= ~(0xff << 6); /* clear prescaler bits */
padc->ADCCON |= ((65 << 6) | ADC_PRSCEN); /* set prescaler */
/*
* Wait some time to avoid problem with very first call of
* adc_read(). Without * this delay, sometimes the first read adc
* value is 0. Perhaps because the * adjustment of prescaler takes
* some clock cycles?
*/
udelay (1000);
return;
}
int do_buttons (void)
{
int result;
int i;
result = *CPLD_BUTTONS; /* read CPLD */
debug ("%s: cpld_taster (32 bit) %#x\n", __FUNCTION__, result);
/* print result to console */
print_identifier ();
for (i = 16; i <= 19; i++) {
if ((result & (1 << i)) == 0)
printf("0");
else
printf("1");
}
printf("\n");
return 0;
}
int do_power_switch (void)
{
int result;
struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
/* configure GPE7 as input */
gpio->PECON &= ~(0x3 << (2 * 7));
/* signal GPE7 from power switch is low active: 0=on , 1=off */
result = ((gpio->PEDAT & (1 << 7)) == (1 << 7)) ? 0 : 1;
print_identifier ();
printf("%d\n", result);
return 0;
}
int do_fill_level (void)
{
int result;
result = *CPLD_FILL_LEVEL; /* read CPLD */
debug ("%s: cpld_fuellstand (32 bit) %#x\n", __FUNCTION__, result);
/* print result to console */
print_identifier ();
if ((result & (1 << 16)) == 0)
printf("0\n");
else
printf("1\n");
return 0;
}
int do_rotary_switch (void)
{
int result;
/*
* Please note, that the default values of the direction bits are
* undefined after reset. So it is a good idea, to make first a dummy
* call to this function, to clear the direction bits and set so to
* proper values.
*/
result = *CPLD_ROTARY_SWITCH; /* read CPLD */
debug ("%s: cpld_inc (32 bit) %#x\n", __FUNCTION__, result);
*CPLD_ROTARY_SWITCH |= (3 << 16); /* clear direction bits in CPLD */
/* print result to console */
print_identifier ();
if ((result & (1 << 16)) == (1 << 16))
printf("R");
if ((result & (1 << 17)) == (1 << 17))
printf("L");
if (((result & (1 << 16)) == 0) && ((result & (1 << 17)) == 0))
printf("0");
if ((result & (1 << 18)) == 0)
printf("0\n");
else
printf("1\n");
return 0;
}
int do_vfd_id (void)
{
int i;
long int pcup_old, pccon_old;
int vfd_board_id;
struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
/* try to red vfd board id from the value defined by pull-ups */
pcup_old = gpio->PCUP;
pccon_old = gpio->PCCON;
gpio->PCUP = (gpio->PCUP & 0xFFF0); /* activate GPC0...GPC3 pull-ups */
gpio->PCCON = (gpio->PCCON & 0xFFFFFF00); /* configure GPC0...GPC3 as
* inputs */
udelay (10); /* allow signals to settle */
vfd_board_id = (~gpio->PCDAT) & 0x000F; /* read GPC0...GPC3 port pins */
gpio->PCCON = pccon_old;
gpio->PCUP = pcup_old;
/* print vfd_board_id to console */
print_identifier ();
for (i = 0; i < 4; i++) {
if ((vfd_board_id & (1 << i)) == 0)
printf("0");
else
printf("1");
}
printf("\n");
return 0;
}
int do_buzzer (char **argv)
{
int counter;
struct s3c24x0_timers * const timers = s3c24x0_get_base_timers();
struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
/* set prescaler for timer 2, 3 and 4 */
timers->TCFG0 &= ~0xFF00;
timers->TCFG0 |= 0x0F00;
/* set divider for timer 2 */
timers->TCFG1 &= ~0xF00;
timers->TCFG1 |= 0x300;
/* set frequency */
counter = (PCLK / BUZZER_FREQ) >> 9;
timers->ch[2].TCNTB = counter;
timers->ch[2].TCMPB = counter / 2;
if (strcmp (argv[2], "on") == 0) {
debug ("%s: frequency: %d\n", __FUNCTION__,
BUZZER_FREQ);
/* configure pin GPD7 as TOUT2 */
gpio->PDCON &= ~0xC000;
gpio->PDCON |= 0x8000;
/* start */
timers->TCON = (timers->TCON | UPDATE2 | RELOAD2) &
~INVERT2;
timers->TCON = (timers->TCON | START2) & ~UPDATE2;
return (0);
}
else if (strcmp (argv[2], "off") == 0) {
/* stop */
timers->TCON &= ~(START2 | RELOAD2);
/* configure GPD7 as output and set to low */
gpio->PDCON &= ~0xC000;
gpio->PDCON |= 0x4000;
gpio->PDDAT &= ~0x80;
return (0);
}
printf ("%s: invalid parameter %s\n", __FUNCTION__, argv[2]);
return 1;
}
int do_led (char **argv)
{
struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
/* configure PC14 and PC15 as output */
gpio->PCCON &= ~(0xF << 28);
gpio->PCCON |= (0x5 << 28);
/* configure PD0 and PD4 as output */
gpio->PDCON &= ~((0x3 << 8) | 0x3);
gpio->PDCON |= ((0x1 << 8) | 0x1);
switch (simple_strtoul(argv[2], NULL, 10)) {
case 0:
case 1:
break;
case 2:
if (strcmp (argv[3], "on") == 0)
gpio->PCDAT |= (1 << 14);
else
gpio->PCDAT &= ~(1 << 14);
return 0;
case 3:
if (strcmp (argv[3], "on") == 0)
gpio->PCDAT |= (1 << 15);
else
gpio->PCDAT &= ~(1 << 15);
return 0;
case 4:
if (strcmp (argv[3], "on") == 0)
gpio->PDDAT |= (1 << 0);
else
gpio->PDDAT &= ~(1 << 0);
return 0;
case 5:
if (strcmp (argv[3], "on") == 0)
gpio->PDDAT |= (1 << 4);
else
gpio->PDDAT &= ~(1 << 4);
return 0;
default:
break;
}
printf ("%s: invalid parameter %s\n", __FUNCTION__, argv[2]);
return 1;
}
int do_full_bridge (char **argv)
{
struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
/* configure PD5 and PD6 as output */
gpio->PDCON &= ~((0x3 << 5*2) | (0x3 << 6*2));
gpio->PDCON |= ((0x1 << 5*2) | (0x1 << 6*2));
if (strcmp (argv[2], "+") == 0) {
gpio->PDDAT |= (1 << 5);
gpio->PDDAT |= (1 << 6);
return 0;
}
else if (strcmp (argv[2], "-") == 0) {
gpio->PDDAT &= ~(1 << 5);
gpio->PDDAT |= (1 << 6);
return 0;
}
else if (strcmp (argv[2], "off") == 0) {
gpio->PDDAT &= ~(1 << 5);
gpio->PDDAT &= ~(1 << 6);
return 0;
}
printf ("%s: invalid parameter %s\n", __FUNCTION__, argv[2]);
return 1;
}
/* val must be in [0, 4095] */
static inline unsigned long tsc2000_to_uv (u16 val)
{
return ((250000 * val) / 4096) * 10;
}
int do_dac (char **argv)
{
int brightness;
/* initialize SPI */
tsc2000_spi_init ();
if (((brightness = simple_strtoul (argv[2], NULL, 10)) < 0) ||
(brightness > 255)) {
printf ("%s: invalid parameter %s\n", __FUNCTION__, argv[2]);
return 1;
}
tsc2000_write(TSC2000_REG_DACCTL, 0x0); /* Power up DAC */
tsc2000_write(TSC2000_REG_DAC, brightness & 0xff);
return 0;
}
int do_v_bat (void)
{
unsigned long ret, res;
/* initialize SPI */
spi_init ();
tsc2000_write(TSC2000_REG_ADC, 0x1836);
/* now wait for data available */
adc_wait_conversion_done();
ret = tsc2000_read(TSC2000_REG_BAT1);
res = (tsc2000_to_uv(ret) + 1250) / 2500;
res += (ERROR_BATTERY * res) / 1000;
print_identifier ();
printf ("%ld", (res / 100));
printf (".%ld", ((res % 100) / 10));
printf ("%ld V\n", (res % 10));
return 0;
}
int do_pressure (void)
{
/* initialize SPI */
spi_init ();
tsc2000_write(TSC2000_REG_ADC, 0x2436);
/* now wait for data available */
adc_wait_conversion_done();
print_identifier ();
printf ("%d\n", tsc2000_read(TSC2000_REG_AUX2));
return 0;
}
int do_motor_contact (void)
{
int result;
result = *CPLD_FILL_LEVEL; /* read CPLD */
debug ("%s: cpld_fuellstand (32 bit) %#x\n", __FUNCTION__, result);
/* print result to console */
print_identifier ();
if ((result & (1 << 17)) == 0)
printf("0\n");
else
printf("1\n");
return 0;
}
int do_motor (char **argv)
{
struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
/* Configure I/O port */
gpio->PGCON &= ~(0x3 << 0);
gpio->PGCON |= (0x1 << 0);
if (strcmp (argv[2], "on") == 0) {
gpio->PGDAT &= ~(1 << 0);
return 0;
}
if (strcmp (argv[2], "off") == 0) {
gpio->PGDAT |= (1 << 0);
return 0;
}
printf ("%s: invalid parameter %s\n", __FUNCTION__, argv[2]);
return 1;
}
static void print_identifier (void)
{
printf ("## FKT: ");
}
int do_pwm (char **argv)
{
int counter;
struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
struct s3c24x0_timers * const timers = s3c24x0_get_base_timers();
if (strcmp (argv[2], "on") == 0) {
/* configure pin GPD8 as TOUT3 */
gpio->PDCON &= ~(0x3 << 8*2);
gpio->PDCON |= (0x2 << 8*2);
/* set prescaler for timer 2, 3 and 4 */
timers->TCFG0 &= ~0xFF00;
timers->TCFG0 |= 0x0F00;
/* set divider for timer 3 */
timers->TCFG1 &= ~(0xf << 12);
timers->TCFG1 |= (0x3 << 12);
/* set frequency */
counter = (PCLK / PWM_FREQ) >> 9;
timers->ch[3].TCNTB = counter;
timers->ch[3].TCMPB = counter / 2;
/* start timer */
timers->TCON = (timers->TCON | UPDATE3 | RELOAD3) & ~INVERT3;
timers->TCON = (timers->TCON | START3) & ~UPDATE3;
return 0;
}
if (strcmp (argv[2], "off") == 0) {
/* stop timer */
timers->TCON &= ~(START2 | RELOAD2);
/* configure pin GPD8 as output and set to 0 */
gpio->PDCON &= ~(0x3 << 8*2);
gpio->PDCON |= (0x1 << 8*2);
gpio->PDDAT &= ~(1 << 8);
return 0;
}
printf ("%s: invalid parameter %s\n", __FUNCTION__, argv[2]);
return 1;
}
int do_thermo (char **argv)
{
int channel, res;
tsc2000_reg_init ();
if (strcmp (argv[2], "all") == 0) {
int i;
for (i=0; i <= 15; i++) {
res = tsc2000_read_channel(i);
print_identifier ();
printf ("c%d: %d\n", i, res);
}
return 0;
}
channel = simple_strtoul (argv[2], NULL, 10);
res = tsc2000_read_channel(channel);
print_identifier ();
printf ("%d\n", res);
return 0; /* return OK */
}
int do_touch (char **argv)
{
int x, y;
if (strcmp (argv[2], "tl") == 0) {
#ifdef CONFIG_TOUCH_WAIT_PRESSED
touch_wait_pressed();
#else
{
int i;
for (i = 0; i < (TOUCH_TIMEOUT * 1000); i++) {
if (touch_check_pressed ()) {
break;
}
udelay (1000); /* pause 1 ms */
}
}
if (!touch_check_pressed()) {
print_identifier ();
printf ("error: touch not pressed\n");
return 1;
}
#endif /* CONFIG_TOUCH_WAIT_PRESSED */
touch_read_x_y (&x, &y);
print_identifier ();
printf ("x=%d y=%d\n", x, y);
return touch_write_clibration_values (CALIB_TL, x, y);
}
else if (strcmp (argv[2], "dr") == 0) {
#ifdef CONFIG_TOUCH_WAIT_PRESSED
touch_wait_pressed();
#else
{
int i;
for (i = 0; i < (TOUCH_TIMEOUT * 1000); i++) {
if (touch_check_pressed ()) {
break;
}
udelay (1000); /* pause 1 ms */
}
}
if (!touch_check_pressed()) {
print_identifier ();
printf ("error: touch not pressed\n");
return 1;
}
#endif /* CONFIG_TOUCH_WAIT_PRESSED */
touch_read_x_y (&x, &y);
print_identifier ();
printf ("x=%d y=%d\n", x, y);
return touch_write_clibration_values (CALIB_DR, x, y);
}
return 1; /* not "tl", nor "dr", so return error */
}
#ifdef CONFIG_TOUCH_WAIT_PRESSED
static void touch_wait_pressed (void)
{
while (!(tsc2000_read(TSC2000_REG_ADC) & TC_PSM));
}
#else
static int touch_check_pressed (void)
{
return (tsc2000_read(TSC2000_REG_ADC) & TC_PSM);
}
#endif /* CONFIG_TOUCH_WAIT_PRESSED */
static int touch_write_clibration_values (int calib_point, int x, int y)
{
#if defined(CONFIG_CMD_I2C)
int x_verify = 0;
int y_verify = 0;
tsc2000_reg_init ();
if (calib_point == CALIB_TL) {
if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, TOUCH_X0, 1,
(unsigned char *)&x, 2)) {
return 1;
}
if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, TOUCH_Y0, 1,
(unsigned char *)&y, 2)) {
return 1;
}
/* verify written values */
if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, TOUCH_X0, 1,
(unsigned char *)&x_verify, 2)) {
return 1;
}
if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, TOUCH_Y0, 1,
(unsigned char *)&y_verify, 2)) {
return 1;
}
if ((y != y_verify) || (x != x_verify)) {
print_identifier ();
printf ("error: verify error\n");
return 1;
}
return 0; /* no error */
}
else if (calib_point == CALIB_DR) {
if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, TOUCH_X1, 1,
(unsigned char *)&x, 2)) {
return 1;
}
if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, TOUCH_Y1, 1,
(unsigned char *)&y, 2)) {
return 1;
}
/* verify written values */
if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, TOUCH_X1, 1,
(unsigned char *)&x_verify, 2)) {
return 1;
}
if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, TOUCH_Y1, 1,
(unsigned char *)&y_verify, 2)) {
return 1;
}
if ((y != y_verify) || (x != x_verify)) {
print_identifier ();
printf ("error: verify error\n");
return 1;
}
return 0;
}
return 1;
#else
printf ("No I2C support enabled (CONFIG_CMD_I2C), could not write "
"to EEPROM\n");
return (1);
#endif
}
static void touch_read_x_y (int *px, int *py)
{
tsc2000_write(TSC2000_REG_ADC, DEFAULT_ADC | TC_AD0 | TC_AD1);
adc_wait_conversion_done();
*px = tsc2000_read(TSC2000_REG_X);
tsc2000_write(TSC2000_REG_ADC, DEFAULT_ADC | TC_AD2);
adc_wait_conversion_done();
*py = tsc2000_read(TSC2000_REG_Y);
}
int do_rs485 (char **argv)
{
int timeout;
char data[RS485_MAX_RECEIVE_BUF_LEN];
if (strcmp (argv[2], "send") == 0) {
return (rs485_send_line (argv[3]));
}
else if (strcmp (argv[2], "receive") == 0) {
timeout = simple_strtoul(argv[3], NULL, 10);
if (rs485_receive_chars (data, timeout) != 0) {
print_identifier ();
printf ("## nothing received\n");
return (1);
}
else {
print_identifier ();
printf ("%s\n", data);
return (0);
}
}
printf ("%s: unknown command %s\n", __FUNCTION__, argv[2]);
return (1); /* unknown command, return error */
}
static int rs485_send_line (const char *data)
{
rs485_init ();
trab_rs485_enable_tx ();
rs485_puts (data);
rs485_putc ('\n');
return (0);
}
static int rs485_receive_chars (char *data, int timeout)
{
int i;
int receive_count = 0;
rs485_init ();
trab_rs485_enable_rx ();
/* test every 1 ms for received characters to avoid a receive FIFO
* overrun (@ 38.400 Baud) */
for (i = 0; i < (timeout * 1000); i++) {
while (rs485_tstc ()) {
if (receive_count >= RS485_MAX_RECEIVE_BUF_LEN-1)
break;
*data++ = rs485_getc ();
receive_count++;
}
udelay (1000); /* pause 1 ms */
}
*data = '\0'; /* terminate string */
if (receive_count == 0)
return (1);
else
return (0);
}
int do_serial_number (char **argv)
{
#if defined(CONFIG_CMD_I2C)
unsigned int serial_number;
if (strcmp (argv[2], "read") == 0) {
if (i2c_read (I2C_EEPROM_DEV_ADDR, SERIAL_NUMBER, 1,
(unsigned char *)&serial_number, 4)) {
printf ("could not read from eeprom\n");
return (1);
}
print_identifier ();
printf ("%08d\n", serial_number);
return (0);
}
else if (strcmp (argv[2], "write") == 0) {
serial_number = simple_strtoul(argv[3], NULL, 10);
if (i2c_write (I2C_EEPROM_DEV_ADDR, SERIAL_NUMBER, 1,
(unsigned char *)&serial_number, 4)) {
printf ("could not write to eeprom\n");
return (1);
}
return (0);
}
printf ("%s: unknown command %s\n", __FUNCTION__, argv[2]);
return (1); /* unknown command, return error */
#else
printf ("No I2C support enabled (CONFIG_CMD_I2C), could not write "
"to EEPROM\n");
return (1);
#endif
}
int do_crc16 (void)
{
#if defined(CONFIG_CMD_I2C)
int crc;
unsigned char buf[EEPROM_MAX_CRC_BUF];
if (i2c_read (I2C_EEPROM_DEV_ADDR, 0, 1, buf, 60)) {
printf ("could not read from eeprom\n");
return (1);
}
crc = 0; /* start value of crc calculation */
crc = updcrc (crc, buf, 60);
print_identifier ();
printf ("crc16=%#04x\n", crc);
if (i2c_write (I2C_EEPROM_DEV_ADDR, CRC16, 1, (unsigned char *)&crc,
sizeof (crc))) {
printf ("could not read from eeprom\n");
return (1);
}
return (0);
#else
printf ("No I2C support enabled (CONFIG_CMD_I2C), could not write "
"to EEPROM\n");
return (1);
#endif
}
/*
* Calculate, intelligently, the CRC of a dataset incrementally given a
* buffer full at a time.
* Initialize crc to 0 for XMODEM, -1 for CCITT.
*
* Usage:
* newcrc = updcrc( oldcrc, bufadr, buflen )
* unsigned int oldcrc, buflen;
* char *bufadr;
*
* Compile with -DTEST to generate program that prints CRC of stdin to stdout.
* Compile with -DMAKETAB to print values for crctab to stdout
*/
/* the CRC polynomial. This is used by XMODEM (almost CCITT).
* If you change P, you must change crctab[]'s initial value to what is
* printed by initcrctab()
*/
#define P 0x1021
/* number of bits in CRC: don't change it. */
#define W 16
/* this the number of bits per char: don't change it. */
#define B 8
static unsigned short crctab[1<<B] = { /* as calculated by initcrctab() */
0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0
};
static unsigned short updcrc(unsigned short icrc, unsigned char *icp,
unsigned int icnt )
{
register unsigned short crc = icrc;
register unsigned char *cp = icp;
register unsigned int cnt = icnt;
while (cnt--)
crc = (crc<<B) ^ crctab[(crc>>(W-B)) ^ *cp++];
return (crc);
}
int do_gain (char **argv)
{
int range;
range = simple_strtoul (argv[2], NULL, 10);
if ((range < 1) || (range > 3))
{
printf ("%s: invalid parameter %s\n", __FUNCTION__, argv[2]);
return 1;
}
tsc2000_set_range (range);
return (0);
}
int do_eeprom (char **argv)
{
#if defined(CONFIG_CMD_I2C)
if (strcmp (argv[2], "read") == 0) {
return (trab_eeprom_read (argv));
}
else if (strcmp (argv[2], "write") == 0) {
return (trab_eeprom_write (argv));
}
printf ("%s: invalid parameter %s\n", __FUNCTION__, argv[2]);
return (1);
#else
printf ("No I2C support enabled (CONFIG_CMD_I2C), could not write "
"to EEPROM\n");
return (1);
#endif
}
#if defined(CONFIG_CMD_I2C)
static int trab_eeprom_read (char **argv)
{
int i;
int len;
unsigned int addr;
long int value = 0;
uchar *buffer;
buffer = (uchar *) &value;
addr = simple_strtoul (argv[3], NULL, 10);
addr &= 0xfff;
len = simple_strtoul (argv[4], NULL, 10);
if ((len < 1) || (len > 4)) {
printf ("%s: invalid parameter %s\n", __FUNCTION__,
argv[4]);
return (1);
}
for (i = 0; i < len; i++) {
if (i2c_read (I2C_EEPROM_DEV_ADDR, addr+i, 1, buffer+i, 1)) {
printf ("%s: could not read from i2c device %#x"
", addr %d\n", __FUNCTION__,
I2C_EEPROM_DEV_ADDR, addr);
return (1);
}
}
print_identifier ();
if (strcmp (argv[5], "-") == 0) {
if (len == 1)
printf ("%d\n", (signed char) value);
else if (len == 2)
printf ("%d\n", (signed short int) value);
else
printf ("%ld\n", value);
}
else {
if (len == 1)
printf ("%d\n", (unsigned char) value);
else if (len == 2)
printf ("%d\n", (unsigned short int) value);
else
printf ("%ld\n", (unsigned long int) value);
}
return (0);
}
static int trab_eeprom_write (char **argv)
{
int i;
int len;
unsigned int addr;
long int value = 0;
uchar *buffer;
buffer = (uchar *) &value;
addr = simple_strtoul (argv[3], NULL, 10);
addr &= 0xfff;
len = simple_strtoul (argv[4], NULL, 10);
if ((len < 1) || (len > 4)) {
printf ("%s: invalid parameter %s\n", __FUNCTION__,
argv[4]);
return (1);
}
value = simple_strtol (argv[5], NULL, 10);
debug ("value=%ld\n", value);
for (i = 0; i < len; i++) {
if (i2c_write (I2C_EEPROM_DEV_ADDR, addr+i, 1, buffer+i, 1)) {
printf ("%s: could not write to i2c device %d"
", addr %d\n", __FUNCTION__,
I2C_EEPROM_DEV_ADDR, addr);
return (1);
}
#if 0
printf ("chip=%#x, addr+i=%#x+%d=%p, alen=%d, *buffer+i="
"%#x+%d=%p=%#x \n",I2C_EEPROM_DEV_ADDR_DEV_ADDR , addr,
i, addr+i, 1, buffer, i, buffer+i, *(buffer+i));
#endif
udelay (30000); /* wait for EEPROM ready */
}
return (0);
}
int i2c_write_multiple (uchar chip, uint addr, int alen,
uchar *buffer, int len)
{
int i;
if (alen != 1) {
printf ("%s: addr len other than 1 not supported\n",
__FUNCTION__);
return (1);
}
for (i = 0; i < len; i++) {
if (i2c_write (chip, addr+i, alen, buffer+i, 1)) {
printf ("%s: could not write to i2c device %d"
", addr %d\n", __FUNCTION__, chip, addr);
return (1);
}
#if 0
printf ("chip=%#x, addr+i=%#x+%d=%p, alen=%d, *buffer+i="
"%#x+%d=%p=\"%.1s\"\n", chip, addr, i, addr+i,
alen, buffer, i, buffer+i, buffer+i);
#endif
udelay (30000);
}
return (0);
}
int i2c_read_multiple ( uchar chip, uint addr, int alen,
uchar *buffer, int len)
{
int i;
if (alen != 1) {
printf ("%s: addr len other than 1 not supported\n",
__FUNCTION__);
return (1);
}
for (i = 0; i < len; i++) {
if (i2c_read (chip, addr+i, alen, buffer+i, 1)) {
printf ("%s: could not read from i2c device %#x"
", addr %d\n", __FUNCTION__, chip, addr);
return (1);
}
}
return (0);
}
#endif
Reference in a new issue View git blame Copy permalink