Jay Cliburn | f3cc28c | 2007-02-08 10:42:37 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved. |
| 3 | * Copyright(c) 2006 Chris Snook <csnook@redhat.com> |
| 4 | * Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.com> |
| 5 | * |
| 6 | * Derived from Intel e1000 driver |
| 7 | * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify it |
| 10 | * under the terms of the GNU General Public License as published by the Free |
| 11 | * Software Foundation; either version 2 of the License, or (at your option) |
| 12 | * any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 15 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 17 | * more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License along with |
| 20 | * this program; if not, write to the Free Software Foundation, Inc., 59 |
| 21 | * Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 22 | */ |
| 23 | |
| 24 | #include <linux/types.h> |
Jay Cliburn | f3cc28c | 2007-02-08 10:42:37 -0500 | [diff] [blame] | 25 | #include <linux/moduleparam.h> |
Jeff Garzik | e824f78 | 2007-05-08 02:32:17 -0400 | [diff] [blame] | 26 | #include <linux/pci.h> |
Jay Cliburn | f3cc28c | 2007-02-08 10:42:37 -0500 | [diff] [blame] | 27 | #include "atl1.h" |
| 28 | |
| 29 | /* |
| 30 | * This is the only thing that needs to be changed to adjust the |
| 31 | * maximum number of ports that the driver can manage. |
| 32 | */ |
| 33 | #define ATL1_MAX_NIC 4 |
| 34 | |
| 35 | #define OPTION_UNSET -1 |
| 36 | #define OPTION_DISABLED 0 |
| 37 | #define OPTION_ENABLED 1 |
| 38 | |
| 39 | #define ATL1_PARAM_INIT { [0 ... ATL1_MAX_NIC] = OPTION_UNSET } |
| 40 | |
| 41 | /* |
| 42 | * Interrupt Moderate Timer in units of 2 us |
| 43 | * |
| 44 | * Valid Range: 10-65535 |
| 45 | * |
| 46 | * Default Value: 100 (200us) |
| 47 | */ |
| 48 | static int __devinitdata int_mod_timer[ATL1_MAX_NIC+1] = ATL1_PARAM_INIT; |
| 49 | static int num_int_mod_timer = 0; |
| 50 | module_param_array_named(int_mod_timer, int_mod_timer, int, &num_int_mod_timer, 0); |
| 51 | MODULE_PARM_DESC(int_mod_timer, "Interrupt moderator timer"); |
| 52 | |
| 53 | /* |
| 54 | * flash_vendor |
| 55 | * |
| 56 | * Valid Range: 0-2 |
| 57 | * |
| 58 | * 0 - Atmel |
| 59 | * 1 - SST |
| 60 | * 2 - ST |
| 61 | * |
| 62 | * Default Value: 0 |
| 63 | */ |
| 64 | static int __devinitdata flash_vendor[ATL1_MAX_NIC+1] = ATL1_PARAM_INIT; |
| 65 | static int num_flash_vendor = 0; |
| 66 | module_param_array_named(flash_vendor, flash_vendor, int, &num_flash_vendor, 0); |
| 67 | MODULE_PARM_DESC(flash_vendor, "SPI flash vendor"); |
| 68 | |
| 69 | #define DEFAULT_INT_MOD_CNT 100 /* 200us */ |
| 70 | #define MAX_INT_MOD_CNT 65000 |
| 71 | #define MIN_INT_MOD_CNT 50 |
| 72 | |
| 73 | #define FLASH_VENDOR_DEFAULT 0 |
| 74 | #define FLASH_VENDOR_MIN 0 |
| 75 | #define FLASH_VENDOR_MAX 2 |
| 76 | |
| 77 | struct atl1_option { |
| 78 | enum { enable_option, range_option, list_option } type; |
| 79 | char *name; |
| 80 | char *err; |
| 81 | int def; |
| 82 | union { |
| 83 | struct { /* range_option info */ |
| 84 | int min; |
| 85 | int max; |
| 86 | } r; |
| 87 | struct { /* list_option info */ |
| 88 | int nr; |
| 89 | struct atl1_opt_list { |
| 90 | int i; |
| 91 | char *str; |
| 92 | } *p; |
| 93 | } l; |
| 94 | } arg; |
| 95 | }; |
| 96 | |
Jay Cliburn | 1e00636 | 2007-04-29 21:42:10 -0500 | [diff] [blame] | 97 | static int __devinit atl1_validate_option(int *value, struct atl1_option *opt, struct pci_dev *pdev) |
Jay Cliburn | f3cc28c | 2007-02-08 10:42:37 -0500 | [diff] [blame] | 98 | { |
| 99 | if (*value == OPTION_UNSET) { |
| 100 | *value = opt->def; |
| 101 | return 0; |
| 102 | } |
| 103 | |
| 104 | switch (opt->type) { |
| 105 | case enable_option: |
| 106 | switch (*value) { |
| 107 | case OPTION_ENABLED: |
Jay Cliburn | 1e00636 | 2007-04-29 21:42:10 -0500 | [diff] [blame] | 108 | dev_info(&pdev->dev, "%s enabled\n", opt->name); |
Jay Cliburn | f3cc28c | 2007-02-08 10:42:37 -0500 | [diff] [blame] | 109 | return 0; |
| 110 | case OPTION_DISABLED: |
Jay Cliburn | 1e00636 | 2007-04-29 21:42:10 -0500 | [diff] [blame] | 111 | dev_info(&pdev->dev, "%s disabled\n", opt->name); |
Jay Cliburn | f3cc28c | 2007-02-08 10:42:37 -0500 | [diff] [blame] | 112 | return 0; |
| 113 | } |
| 114 | break; |
| 115 | case range_option: |
| 116 | if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) { |
Jay Cliburn | 1e00636 | 2007-04-29 21:42:10 -0500 | [diff] [blame] | 117 | dev_info(&pdev->dev, "%s set to %i\n", opt->name, |
| 118 | *value); |
Jay Cliburn | f3cc28c | 2007-02-08 10:42:37 -0500 | [diff] [blame] | 119 | return 0; |
| 120 | } |
| 121 | break; |
| 122 | case list_option:{ |
| 123 | int i; |
| 124 | struct atl1_opt_list *ent; |
| 125 | |
| 126 | for (i = 0; i < opt->arg.l.nr; i++) { |
| 127 | ent = &opt->arg.l.p[i]; |
| 128 | if (*value == ent->i) { |
| 129 | if (ent->str[0] != '\0') |
Jay Cliburn | 1e00636 | 2007-04-29 21:42:10 -0500 | [diff] [blame] | 130 | dev_info(&pdev->dev, "%s\n", |
| 131 | ent->str); |
Jay Cliburn | f3cc28c | 2007-02-08 10:42:37 -0500 | [diff] [blame] | 132 | return 0; |
| 133 | } |
| 134 | } |
| 135 | } |
| 136 | break; |
| 137 | |
| 138 | default: |
| 139 | break; |
| 140 | } |
| 141 | |
Jay Cliburn | 1e00636 | 2007-04-29 21:42:10 -0500 | [diff] [blame] | 142 | dev_info(&pdev->dev, "invalid %s specified (%i) %s\n", |
| 143 | opt->name, *value, opt->err); |
Jay Cliburn | f3cc28c | 2007-02-08 10:42:37 -0500 | [diff] [blame] | 144 | *value = opt->def; |
| 145 | return -1; |
| 146 | } |
| 147 | |
| 148 | /* |
| 149 | * atl1_check_options - Range Checking for Command Line Parameters |
| 150 | * @adapter: board private structure |
| 151 | * |
| 152 | * This routine checks all command line parameters for valid user |
| 153 | * input. If an invalid value is given, or if no user specified |
| 154 | * value exists, a default value is used. The final value is stored |
| 155 | * in a variable in the adapter structure. |
| 156 | */ |
| 157 | void __devinit atl1_check_options(struct atl1_adapter *adapter) |
| 158 | { |
Jay Cliburn | 1e00636 | 2007-04-29 21:42:10 -0500 | [diff] [blame] | 159 | struct pci_dev *pdev = adapter->pdev; |
Jay Cliburn | f3cc28c | 2007-02-08 10:42:37 -0500 | [diff] [blame] | 160 | int bd = adapter->bd_number; |
| 161 | if (bd >= ATL1_MAX_NIC) { |
Jay Cliburn | 1e00636 | 2007-04-29 21:42:10 -0500 | [diff] [blame] | 162 | dev_notice(&pdev->dev, "no configuration for board#%i\n", bd); |
| 163 | dev_notice(&pdev->dev, "using defaults for all values\n"); |
Jay Cliburn | f3cc28c | 2007-02-08 10:42:37 -0500 | [diff] [blame] | 164 | } |
| 165 | { /* Interrupt Moderate Timer */ |
| 166 | struct atl1_option opt = { |
| 167 | .type = range_option, |
| 168 | .name = "Interrupt Moderator Timer", |
| 169 | .err = "using default of " |
| 170 | __MODULE_STRING(DEFAULT_INT_MOD_CNT), |
| 171 | .def = DEFAULT_INT_MOD_CNT, |
| 172 | .arg = {.r = |
| 173 | {.min = MIN_INT_MOD_CNT,.max = MAX_INT_MOD_CNT}} |
| 174 | }; |
| 175 | int val; |
| 176 | if (num_int_mod_timer > bd) { |
| 177 | val = int_mod_timer[bd]; |
Jay Cliburn | 1e00636 | 2007-04-29 21:42:10 -0500 | [diff] [blame] | 178 | atl1_validate_option(&val, &opt, pdev); |
Jay Cliburn | f3cc28c | 2007-02-08 10:42:37 -0500 | [diff] [blame] | 179 | adapter->imt = (u16) val; |
| 180 | } else |
| 181 | adapter->imt = (u16) (opt.def); |
| 182 | } |
| 183 | |
| 184 | { /* Flash Vendor */ |
| 185 | struct atl1_option opt = { |
| 186 | .type = range_option, |
| 187 | .name = "SPI Flash Vendor", |
| 188 | .err = "using default of " |
| 189 | __MODULE_STRING(FLASH_VENDOR_DEFAULT), |
| 190 | .def = DEFAULT_INT_MOD_CNT, |
| 191 | .arg = {.r = |
| 192 | {.min = FLASH_VENDOR_MIN,.max = |
| 193 | FLASH_VENDOR_MAX}} |
| 194 | }; |
| 195 | int val; |
| 196 | if (num_flash_vendor > bd) { |
| 197 | val = flash_vendor[bd]; |
Jay Cliburn | 1e00636 | 2007-04-29 21:42:10 -0500 | [diff] [blame] | 198 | atl1_validate_option(&val, &opt, pdev); |
Jay Cliburn | f3cc28c | 2007-02-08 10:42:37 -0500 | [diff] [blame] | 199 | adapter->hw.flash_vendor = (u8) val; |
| 200 | } else |
| 201 | adapter->hw.flash_vendor = (u8) (opt.def); |
| 202 | } |
| 203 | } |