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a7c9310457
Initial support for the DS4510, a CPU supervisor with integrated EEPROM, SRAM, and 4 programmable non-volatile GPIO pins. The CONFIG_DS4510 define enables support for the device while the CONFIG_CMD_DS4510 define enables the ds4510 command. The additional CONFIG_DS4510_INFO, CONFIG_DS4510_MEM, and CONFIG_DS4510_RST defines add additional sub-commands to the ds4510 command when defined. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
/*
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* Copyright 2008 Extreme Engineering Solutions, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* Version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef __DS4510_H_
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#define __DS4510_H_
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/* General defines */
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#define DS4510_NUM_IO 0x04
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#define DS4510_IO_MASK ((1 << DS4510_NUM_IO) - 1)
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#define DS4510_EEPROM_PAGE_WRITE_DELAY_MS 20
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/* EEPROM from 0x00 - 0x39 */
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#define DS4510_EEPROM 0x00
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#define DS4510_EEPROM_SIZE 0x40
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#define DS4510_EEPROM_PAGE_SIZE 0x08
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#define DS4510_EEPROM_PAGE_OFFSET(x) ((x) & (DS4510_EEPROM_PAGE_SIZE - 1))
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/* SEEPROM from 0xf0 - 0xf7 */
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#define DS4510_SEEPROM 0xf0
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#define DS4510_SEEPROM_SIZE 0x08
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/* Registers overlapping SEEPROM from 0xf0 - 0xf7 */
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#define DS4510_PULLUP 0xF0
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#define DS4510_PULLUP_DIS 0x00
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#define DS4510_PULLUP_EN 0x01
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#define DS4510_RSTDELAY 0xF1
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#define DS4510_RSTDELAY_MASK 0x03
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#define DS4510_RSTDELAY_125 0x00
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#define DS4510_RSTDELAY_250 0x01
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#define DS4510_RSTDELAY_500 0x02
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#define DS4510_RSTDELAY_1000 0x03
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#define DS4510_IO3 0xF4
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#define DS4510_IO2 0xF5
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#define DS4510_IO1 0xF6
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#define DS4510_IO0 0xF7
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/* Status configuration registers from 0xf8 - 0xf9*/
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#define DS4510_IO_STATUS 0xF8
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#define DS4510_CFG 0xF9
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#define DS4510_CFG_READY 0x80
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#define DS4510_CFG_TRIP_POINT 0x40
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#define DS4510_CFG_RESET 0x20
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#define DS4510_CFG_SEE 0x10
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#define DS4510_CFG_SWRST 0x08
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/* SRAM from 0xfa - 0xff */
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#define DS4510_SRAM 0xfa
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#define DS4510_SRAM_SIZE 0x06
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int ds4510_mem_write(uint8_t chip, int offset, uint8_t *buf, int count);
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int ds4510_mem_read(uint8_t chip, int offset, uint8_t *buf, int count);
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int ds4510_see_write(uint8_t chip, uint8_t nv);
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int ds4510_rstdelay_write(uint8_t chip, uint8_t delay);
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int ds4510_pullup_write(uint8_t chip, uint8_t val);
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int ds4510_pullup_read(uint8_t chip);
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int ds4510_gpio_write(uint8_t chip, uint8_t val);
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int ds4510_gpio_read(uint8_t chip);
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int ds4510_gpio_read_val(uint8_t chip);
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#endif /* __DS4510_H_ */
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