/* * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved. * Copyright(c) 2006 Chris Snook <csnook@redhat.com> * Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.com> * * Derived from Intel e1000 driver * Copyright(c) 1999 - 2005 Intel Corporation. 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., 59 * Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <linux/types.h> #include <linux/moduleparam.h> #include <linux/pci.h> #include "atl1.h" /* * This is the only thing that needs to be changed to adjust the * maximum number of ports that the driver can manage. */ #define ATL1_MAX_NIC 4 #define OPTION_UNSET -1 #define OPTION_DISABLED 0 #define OPTION_ENABLED 1 #define ATL1_PARAM_INIT { [0 ... ATL1_MAX_NIC] = OPTION_UNSET } /* * Interrupt Moderate Timer in units of 2 us * * Valid Range: 10-65535 * * Default Value: 100 (200us) */ static int __devinitdata int_mod_timer[ATL1_MAX_NIC+1] = ATL1_PARAM_INIT; static int num_int_mod_timer = 0; module_param_array_named(int_mod_timer, int_mod_timer, int, &num_int_mod_timer, 0); MODULE_PARM_DESC(int_mod_timer, "Interrupt moderator timer"); /* * flash_vendor * * Valid Range: 0-2 * * 0 - Atmel * 1 - SST * 2 - ST * * Default Value: 0 */ static int __devinitdata flash_vendor[ATL1_MAX_NIC+1] = ATL1_PARAM_INIT; static int num_flash_vendor = 0; module_param_array_named(flash_vendor, flash_vendor, int, &num_flash_vendor, 0); MODULE_PARM_DESC(flash_vendor, "SPI flash vendor"); #define DEFAULT_INT_MOD_CNT 100 /* 200us */ #define MAX_INT_MOD_CNT 65000 #define MIN_INT_MOD_CNT 50 #define FLASH_VENDOR_DEFAULT 0 #define FLASH_VENDOR_MIN 0 #define FLASH_VENDOR_MAX 2 struct atl1_option { enum { enable_option, range_option, list_option } type; char *name; char *err; int def; union { struct { /* range_option info */ int min; int max; } r; struct { /* list_option info */ int nr; struct atl1_opt_list { int i; char *str; } *p; } l; } arg; }; static int __devinit atl1_validate_option(int *value, struct atl1_option *opt, struct pci_dev *pdev) { if (*value == OPTION_UNSET) { *value = opt->def; return 0; } switch (opt->type) { case enable_option: switch (*value) { case OPTION_ENABLED: dev_info(&pdev->dev, "%s enabled\n", opt->name); return 0; case OPTION_DISABLED: dev_info(&pdev->dev, "%s disabled\n", opt->name); return 0; } break; case range_option: if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) { dev_info(&pdev->dev, "%s set to %i\n", opt->name, *value); return 0; } break; case list_option:{ int i; struct atl1_opt_list *ent; for (i = 0; i < opt->arg.l.nr; i++) { ent = &opt->arg.l.p[i]; if (*value == ent->i) { if (ent->str[0] != '\0') dev_info(&pdev->dev, "%s\n", ent->str); return 0; } } } break; default: break; } dev_info(&pdev->dev, "invalid %s specified (%i) %s\n", opt->name, *value, opt->err); *value = opt->def; return -1; } /* * atl1_check_options - Range Checking for Command Line Parameters * @adapter: board private structure * * This routine checks all command line parameters for valid user * input. If an invalid value is given, or if no user specified * value exists, a default value is used. The final value is stored * in a variable in the adapter structure. */ void __devinit atl1_check_options(struct atl1_adapter *adapter) { struct pci_dev *pdev = adapter->pdev; int bd = adapter->bd_number; if (bd >= ATL1_MAX_NIC) { dev_notice(&pdev->dev, "no configuration for board#%i\n", bd); dev_notice(&pdev->dev, "using defaults for all values\n"); } { /* Interrupt Moderate Timer */ struct atl1_option opt = { .type = range_option, .name = "Interrupt Moderator Timer", .err = "using default of " __MODULE_STRING(DEFAULT_INT_MOD_CNT), .def = DEFAULT_INT_MOD_CNT, .arg = {.r = {.min = MIN_INT_MOD_CNT,.max = MAX_INT_MOD_CNT}} }; int val; if (num_int_mod_timer > bd) { val = int_mod_timer[bd]; atl1_validate_option(&val, &opt, pdev); adapter->imt = (u16) val; } else adapter->imt = (u16) (opt.def); } { /* Flash Vendor */ struct atl1_option opt = { .type = range_option, .name = "SPI Flash Vendor", .err = "using default of " __MODULE_STRING(FLASH_VENDOR_DEFAULT), .def = DEFAULT_INT_MOD_CNT, .arg = {.r = {.min = FLASH_VENDOR_MIN,.max = FLASH_VENDOR_MAX}} }; int val; if (num_flash_vendor > bd) { val = flash_vendor[bd]; atl1_validate_option(&val, &opt, pdev); adapter->hw.flash_vendor = (u8) val; } else adapter->hw.flash_vendor = (u8) (opt.def); } }