+++ /dev/null
-/*
- * addi_eeprom.c - ADDI EEPROM Module
- * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module.
- * Project manager: Eric Stolz
- *
- * ADDI-DATA GmbH
- * Dieselstrasse 3
- * D-77833 Ottersweier
- * Tel: +19(0)7223/9493-0
- * Fax: +49(0)7223/9493-92
- * http://www.addi-data.com
- * info@addi-data.com
- *
- * 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.
- */
-
-#include <linux/delay.h>
-
-#define NVRAM_USER_DATA_START 0x100
-
-#define NVCMD_BEGIN_READ (0x7 << 5) /* nvRam begin read command */
-#define NVCMD_LOAD_LOW (0x4 << 5) /* nvRam load low command */
-#define NVCMD_LOAD_HIGH (0x5 << 5) /* nvRam load high command */
-
-#define EE93C76_CLK_BIT (1 << 0)
-#define EE93C76_CS_BIT (1 << 1)
-#define EE93C76_DOUT_BIT (1 << 2)
-#define EE93C76_DIN_BIT (1 << 3)
-#define EE93C76_READ_CMD (0x0180 << 4)
-#define EE93C76_CMD_LEN 13
-
-#define EEPROM_DIGITALINPUT 0
-#define EEPROM_DIGITALOUTPUT 1
-#define EEPROM_ANALOGINPUT 2
-#define EEPROM_ANALOGOUTPUT 3
-#define EEPROM_TIMER 4
-#define EEPROM_WATCHDOG 5
-#define EEPROM_TIMER_WATCHDOG_COUNTER 10
-
-static void addi_eeprom_clk_93c76(unsigned long iobase, unsigned int val)
-{
- outl(val & ~EE93C76_CLK_BIT, iobase);
- udelay(100);
-
- outl(val | EE93C76_CLK_BIT, iobase);
- udelay(100);
-}
-
-static unsigned int addi_eeprom_cmd_93c76(unsigned long iobase,
- unsigned int cmd,
- unsigned char len)
-{
- unsigned int val = EE93C76_CS_BIT;
- int i;
-
- /* Toggle EEPROM's Chip select to get it out of Shift Register Mode */
- outl(val, iobase);
- udelay(100);
-
- /* Send EEPROM command - one bit at a time */
- for (i = (len - 1); i >= 0; i--) {
- if (cmd & (1 << i))
- val |= EE93C76_DOUT_BIT;
- else
- val &= ~EE93C76_DOUT_BIT;
-
- /* Write the command */
- outl(val, iobase);
- udelay(100);
-
- addi_eeprom_clk_93c76(iobase, val);
- }
- return val;
-}
-
-static unsigned short addi_eeprom_readw_93c76(unsigned long iobase,
- unsigned short addr)
-{
- unsigned short val = 0;
- unsigned int cmd;
- unsigned int tmp;
- int i;
-
- /* Send EEPROM read command and offset to EEPROM */
- cmd = EE93C76_READ_CMD | (addr / 2);
- cmd = addi_eeprom_cmd_93c76(iobase, cmd, EE93C76_CMD_LEN);
-
- /* Get the 16-bit value */
- for (i = 0; i < 16; i++) {
- addi_eeprom_clk_93c76(iobase, cmd);
-
- tmp = inl(iobase);
- udelay(100);
-
- val <<= 1;
- if (tmp & EE93C76_DIN_BIT)
- val |= 0x1;
- }
-
- /* Toggle EEPROM's Chip select to get it out of Shift Register Mode */
- outl(0, iobase);
- udelay(100);
-
- return val;
-}
-
-static void addi_eeprom_nvram_wait(unsigned long iobase)
-{
- unsigned char val;
-
- do {
- val = inb(iobase + AMCC_OP_REG_MCSR_NVCMD);
- } while (val & 0x80);
-}
-
-static unsigned short addi_eeprom_readw_nvram(unsigned long iobase,
- unsigned short addr)
-{
- unsigned short val = 0;
- unsigned char tmp;
- unsigned char i;
-
- for (i = 0; i < 2; i++) {
- /* Load the low 8 bit address */
- outb(NVCMD_LOAD_LOW, iobase + AMCC_OP_REG_MCSR_NVCMD);
- addi_eeprom_nvram_wait(iobase);
- outb((addr + i) & 0xff, iobase + AMCC_OP_REG_MCSR_NVDATA);
- addi_eeprom_nvram_wait(iobase);
-
- /* Load the high 8 bit address */
- outb(NVCMD_LOAD_HIGH, iobase + AMCC_OP_REG_MCSR_NVCMD);
- addi_eeprom_nvram_wait(iobase);
- outb(((addr + i) >> 8) & 0xff,
- iobase + AMCC_OP_REG_MCSR_NVDATA);
- addi_eeprom_nvram_wait(iobase);
-
- /* Read the eeprom data byte */
- outb(NVCMD_BEGIN_READ, iobase + AMCC_OP_REG_MCSR_NVCMD);
- addi_eeprom_nvram_wait(iobase);
- tmp = inb(iobase + AMCC_OP_REG_MCSR_NVDATA);
- addi_eeprom_nvram_wait(iobase);
-
- if (i == 0)
- val |= tmp;
- else
- val |= (tmp << 8);
- }
-
- return val;
-}
-
-static unsigned short addi_eeprom_readw(unsigned long iobase,
- char *type,
- unsigned short addr)
-{
- unsigned short val = 0;
-
- /* Add the offset to the start of the user data */
- addr += NVRAM_USER_DATA_START;
-
- if (!strcmp(type, "S5920") || !strcmp(type, "S5933"))
- val = addi_eeprom_readw_nvram(iobase, addr);
-
- if (!strcmp(type, "93C76"))
- val = addi_eeprom_readw_93c76(iobase, addr);
-
- return val;
-}
-
-static void addi_eeprom_read_di_info(struct comedi_device *dev,
- unsigned long iobase,
- unsigned short addr)
-{
- const struct addi_board *this_board = dev->board_ptr;
- struct addi_private *devpriv = dev->private;
- char *type = this_board->pc_EepromChip;
- unsigned short tmp;
-
- /* Number of channels */
- tmp = addi_eeprom_readw(iobase, type, addr + 6);
- devpriv->s_EeParameters.i_NbrDiChannel = tmp;
-
- /* Interruptible or not */
- tmp = addi_eeprom_readw(iobase, type, addr + 8);
- tmp = (tmp >> 7) & 0x01;
-
- /* How many interruptible logic */
- tmp = addi_eeprom_readw(iobase, type, addr + 10);
-}
-
-static void addi_eeprom_read_do_info(struct comedi_device *dev,
- unsigned long iobase,
- unsigned short addr)
-{
- const struct addi_board *this_board = dev->board_ptr;
- struct addi_private *devpriv = dev->private;
- char *type = this_board->pc_EepromChip;
- unsigned short tmp;
-
- /* Number of channels */
- tmp = addi_eeprom_readw(iobase, type, addr + 6);
- devpriv->s_EeParameters.i_NbrDoChannel = tmp;
-
- devpriv->s_EeParameters.i_DoMaxdata = 0xffffffff >> (32 - tmp);
-}
-
-static void addi_eeprom_read_timer_info(struct comedi_device *dev,
- unsigned long iobase,
- unsigned short addr)
-{
- struct addi_private *devpriv = dev->private;
-#if 0
- const struct addi_board *this_board = dev->board_ptr;
- char *type = this_board->pc_EepromChip;
- unsigned short offset = 0;
- unsigned short ntimers;
- unsigned short tmp;
- int i;
-
- /* Number of Timers */
- ntimers = addi_eeprom_readw(iobase, type, addr + 6);
-
- /* Read header size */
- for (i = 0; i < ntimers; i++) {
- unsigned short size;
- unsigned short res;
- unsigned short mode;
- unsigned short min_timing;
- unsigned short timebase;
-
- size = addi_eeprom_readw(iobase, type, addr + 8 + offset + 0);
-
- /* Resolution / Mode */
- tmp = addi_eeprom_readw(iobase, type, addr + 8 + offset + 2);
- res = (tmp >> 10) & 0x3f;
- mode = (tmp >> 4) & 0x3f;
-
- /* MinTiming / Timebase */
- tmp = addi_eeprom_readw(iobase, type, addr + 8 + offset + 4);
- min_timing = (tmp >> 6) & 0x3ff;
- Timebase = tmp & 0x3f;
-
- offset += size;
- }
-#endif
- /* Timer subdevice present */
- devpriv->s_EeParameters.i_Timer = 1;
-}
-
-static void addi_eeprom_read_ao_info(struct comedi_device *dev,
- unsigned long iobase,
- unsigned short addr)
-{
- const struct addi_board *this_board = dev->board_ptr;
- struct addi_private *devpriv = dev->private;
- char *type = this_board->pc_EepromChip;
- unsigned short tmp;
-
- /* No of channels for 1st hard component */
- tmp = addi_eeprom_readw(iobase, type, addr + 10);
- devpriv->s_EeParameters.i_NbrAoChannel = (tmp >> 4) & 0x3ff;
-
- /* Resolution for 1st hard component */
- tmp = addi_eeprom_readw(iobase, type, addr + 16);
- tmp = (tmp >> 8) & 0xff;
- devpriv->s_EeParameters.i_AoMaxdata = 0xfff >> (16 - tmp);
-}
-
-static void addi_eeprom_read_ai_info(struct comedi_device *dev,
- unsigned long iobase,
- unsigned short addr)
-{
- const struct addi_board *this_board = dev->board_ptr;
- struct addi_private *devpriv = dev->private;
- char *type = this_board->pc_EepromChip;
- unsigned short offset;
- unsigned short tmp;
-
- /* No of channels for 1st hard component */
- tmp = addi_eeprom_readw(iobase, type, addr + 10);
- devpriv->s_EeParameters.i_NbrAiChannel = (tmp >> 4) & 0x3ff;
- if (!strcmp(dev->board_name, "apci3200"))
- devpriv->s_EeParameters.i_NbrAiChannel *= 4;
-
- tmp = addi_eeprom_readw(iobase, type, addr + 16);
- devpriv->s_EeParameters.ui_MinAcquisitiontimeNs = tmp * 1000;
-
- tmp = addi_eeprom_readw(iobase, type, addr + 30);
- devpriv->s_EeParameters.ui_MinDelaytimeNs = tmp * 1000;
-
- tmp = addi_eeprom_readw(iobase, type, addr + 20);
- /* dma = (tmp >> 13) & 0x01; */
-
- tmp = addi_eeprom_readw(iobase, type, addr + 72) & 0xff;
- if (tmp) { /* > 0 */
- /* offset of first analog input single header */
- offset = 74 + (2 * tmp) + (10 * (1 + (tmp / 16)));
- } else { /* = 0 */
- offset = 74;
- }
-
- /* Resolution */
- tmp = addi_eeprom_readw(iobase, type, addr + offset + 2) & 0x1f;
- devpriv->s_EeParameters.i_AiMaxdata = 0xffff >> (16 - tmp);
-}
-
-static void addi_eeprom_read_info(struct comedi_device *dev,
- unsigned long iobase)
-{
- const struct addi_board *this_board = dev->board_ptr;
- char *type = this_board->pc_EepromChip;
- unsigned short size;
- unsigned char nfuncs;
- int i;
-
- size = addi_eeprom_readw(iobase, type, 8);
- nfuncs = addi_eeprom_readw(iobase, type, 10) & 0xff;
-
- /* Read functionality details */
- for (i = 0; i < nfuncs; i++) {
- unsigned short offset = i * 4;
- unsigned short addr;
- unsigned char func;
-
- func = addi_eeprom_readw(iobase, type, 12 + offset) & 0x3f;
- addr = addi_eeprom_readw(iobase, type, 14 + offset);
-
- switch (func) {
- case EEPROM_DIGITALINPUT:
- addi_eeprom_read_di_info(dev, iobase, addr);
- break;
-
- case EEPROM_DIGITALOUTPUT:
- addi_eeprom_read_do_info(dev, iobase, addr);
- break;
-
- case EEPROM_ANALOGINPUT:
- addi_eeprom_read_ai_info(dev, iobase, addr);
- break;
-
- case EEPROM_ANALOGOUTPUT:
- addi_eeprom_read_ao_info(dev, iobase, addr);
- break;
-
- case EEPROM_TIMER:
- case EEPROM_WATCHDOG:
- case EEPROM_TIMER_WATCHDOG_COUNTER:
- addi_eeprom_read_timer_info(dev, iobase, addr);
- break;
- }
- }
-}
projects / openwrt / staging / blogic.git / commitdiff