lincan/src/modparms.c

   1 /* mod_parms.c
   2  * Linux CAN-bus device driver.
   3  * Written by Arnaud Westenberg email:arnaud@wanadoo.nl
   4  * This software is released under the GPL-License.
   5  * Version 0.7  6 Aug 2001
   6  */
   7
   8
   9 #include <linux/autoconf.h>
  10 #if defined (CONFIG_MODVERSIONS) && !defined (MODVERSIONS)
  11 #define MODVERSIONS
  12 #endif
  13
  14 #if defined (MODVERSIONS)
  15 #include <linux/modversions.h>
  16 #endif
  17
  18 #include ".supported_cards.h"
  19
  20 #ifndef ENABLE_CARD_pip
  21 #define ENABLE_CARD_pip 0
  22 #endif
  23 #ifndef ENABLE_CARD_smartcan
  24 #define ENABLE_CARD_smartcan 0
  25 #endif
  26 #ifndef ENABLE_CARD_pccan
  27 #define ENABLE_CARD_pccan 0
  28 #endif
  29 #ifndef ENABLE_CARD_nsi
  30 #define ENABLE_CARD_nsi 0
  31 #endif
  32 #ifndef ENABLE_CARD_cc_can104
  33 #define ENABLE_CARD_cc_can104 0
  34 #endif
  35 #ifndef ENABLE_CARD_aim104
  36 #define ENABLE_CARD_aim104 0
  37 #endif
  38 #ifndef ENABLE_CARD_pc_i03
  39 #define ENABLE_CARD_pc_i03 0
  40 #endif
  41 #ifndef ENABLE_CARD_pcm3680
  42 #define ENABLE_CARD_pcm3680 0
  43 #endif
  44 #ifndef ENABLE_CARD_m437
  45 #define ENABLE_CARD_m437 0
  46 #endif
  47 #ifndef ENABLE_CARD_pcccan
  48 #define ENABLE_CARD_pcccan 0
  49 #endif
  50 #ifndef ENABLE_CARD_ssv
  51 #define ENABLE_CARD_ssv 0
  52 #endif
  53 #ifndef ENABLE_CARD_bfadcan
  54 #define ENABLE_CARD_bfadcan 0
  55 #endif
  56 #ifndef ENABLE_CARD_pikronisa
  57 #define ENABLE_CARD_pikronisa 0
  58 #endif
  59 #ifndef ENABLE_CARD_template
  60 #define ENABLE_CARD_template 0
  61 #endif
  62
  63 #include <linux/string.h>
  64 #include <linux/fs.h>
  65
  66 #include "../include/main.h"
  67 #include "../include/modparms.h"
  68
  69 int parse_mod_parms(void)
  70 {
  71         int i=0,j=0,irq_needed=0,irq_supplied=0,io_needed=0,io_supplied=0,minor_needed=0,minor_supplied=0;
  72
  73         if ( (hw[0] == NULL) | (irq[0] == -1) | (io[0] == -1) ) {
  74                 CANMSG("You must supply your type of hardware, interrupt numbers and io address.\n");
  75                 CANMSG("Example: # insmod can.o hw=pip5 irq=4 io=0x8000\n");
  76                 return -ENODEV;
  77         }
  78
  79         while ( (hw[i] != NULL) && (i < MAX_HW_CARDS) ) {
  80                 if ( !strcmp(hw[i],"pip5") && ENABLE_CARD_pip )
  81                         irq_needed++;
  82                 else if (!strcmp(hw[i],"pip6") && ENABLE_CARD_pip)
  83                         irq_needed++;
  84                 else if (!strcmp(hw[i],"smartcan") && ENABLE_CARD_smartcan)
  85                         irq_needed++;
  86                 else if (!strcmp(hw[i],"pccan-q") && ENABLE_CARD_pccan)
  87                         irq_needed=irq_needed+4;
  88                 else if (!strcmp(hw[i],"pccan-f") && ENABLE_CARD_pccan)
  89                         irq_needed++;
  90                 else if (!strcmp(hw[i],"pccan-s") && ENABLE_CARD_pccan)
  91                         irq_needed++;
  92                 else if (!strcmp(hw[i],"pccan-d") && ENABLE_CARD_pccan)
  93                         irq_needed=irq_needed+2;
  94                 else if (!strcmp(hw[i],"nsican") && ENABLE_CARD_nsi)
  95                         irq_needed++;
  96                 else if (!strcmp(hw[i],"cc104") && ENABLE_CARD_cc_can104)
  97                         irq_needed++;
  98                 else if (!strcmp(hw[i],"aim104") && ENABLE_CARD_aim104)
  99                         irq_needed++;
 100                 else if (!strcmp(hw[i],"pc-i03") && ENABLE_CARD_pc_i03)
 101                         irq_needed++;
 102                 else if (!strcmp(hw[i],"pcm3680") && ENABLE_CARD_pcm3680)
 103                         irq_needed=irq_needed+2;
 104                 else if (!strcmp(hw[i],"m437") && ENABLE_CARD_m437)
 105                         irq_needed++;
 106                 else if (!strcmp(hw[i],"pcccan") && ENABLE_CARD_pcccan)
 107                         irq_needed++;
 108                 else if (!strcmp(hw[i],"ssv") && ENABLE_CARD_ssv)
 109                         irq_needed=irq_needed+2;
 110                 else if (!strcmp(hw[i],"bfadcan") && ENABLE_CARD_bfadcan)
 111                         irq_needed++;
 112                 else if (!strcmp(hw[i],"pikronisa") && ENABLE_CARD_pikronisa)
 113                         irq_needed++;
 114                 else if (!strcmp(hw[i],"template") && ENABLE_CARD_template);
 115                 else {
 116                         CANMSG("Sorry, hardware \"%s\" is currently not supported.\n",hw[i]);
 117                         return -EINVAL;
 118                 }
 119                 i++;
 120         }
 121
 122         /* Check wether the supplied number of io addresses is correct. */
 123         io_needed=i;
 124         while ( (io[io_supplied] != -1) & (io_supplied<MAX_HW_CARDS) )
 125                 io_supplied++;
 126         if (io_needed != io_supplied) {
 127                 CANMSG("Invalid number of io addresses.\n");
 128                 CANMSG("Supplied hardware needs %d io address(es).\n",io_needed);
 129                 return -EINVAL;
 130         }
 131
 132         /* Check wether the supplied number of irq's is correct. */
 133         while ( (irq[irq_supplied] != -1) & (irq_supplied<MAX_IRQ) )
 134                 irq_supplied++;
 135         while ( (hw[j] != NULL) && (j<MAX_HW_CARDS) ) {
 136                 if (!strcmp(hw[j],"template") && ENABLE_CARD_template)
 137                         irq_needed = irq_supplied;
 138                 j++;
 139         }
 140         if (irq_needed != irq_supplied) {
 141                 CANMSG("Invalid number of interrupts.\n");
 142                 CANMSG("Supplied harware needs %d irq number(s).\n",irq_needed);
 143                 return -EINVAL;
 144         }
 145
 146         /* In case minor numbers were assigned check wether the correct number
 147          * of minor numbers was supplied.
 148          */
 149         if (minor[0] != -1) {
 150                 minor_needed=irq_needed;
 151                 while ((minor[minor_supplied] != -1) & (minor_supplied<MAX_IRQ))
 152                         minor_supplied++;
 153                 if (minor_supplied != minor_needed) {
 154                         CANMSG("Invalid number of minor numbers.\n");
 155                         CANMSG("Supplied hardware needs %d minor number(s).\n",minor_needed);
 156                         return -EINVAL;
 157                 }
 158         }
 159
 160         return 0;
 161 }
 162 /* list_hw is used when debugging is on to show the hardware layout */
 163 int list_hw(void)
 164 {
 165         int i=0,j=0,k=0;
 166
 167         DEBUGMSG("Number of boards : %d\n",hardware_p->nr_boards);
 168
 169         while ( (hw[i] != NULL) & (i<=MAX_HW_CARDS-1) ) {
 170                 printk(KERN_ERR "\n");
 171                 DEBUGMSG("Hardware         : %s\n",hardware_p->candevice[i]->hwname);
 172                 DEBUGMSG("IO address       : 0x%lx\n",hardware_p->candevice[i]->io_addr);
 173                 DEBUGMSG("Nr. of i82527    : %d\n",hardware_p->candevice[i]->nr_82527_chips);
 174                 DEBUGMSG("Nr. of sja1000   : %d\n",hardware_p->candevice[i]->nr_sja1000_chips);
 175                 for (j=0; j<hardware_p->candevice[i]->nr_82527_chips+hardware_p->candevice[i]->nr_sja1000_chips; j++) {
 176                         DEBUGMSG("Chip%d type       : %s\n", j+1, hardware_p->candevice[i]->chip[j]->chip_type);
 177                         DEBUGMSG("Chip base        : 0x%lx\n",hardware_p->candevice[i]->chip[j]->chip_base_addr);
 178                         DEBUGMSG("Interrupt        : %d\n",hardware_p->candevice[i]->chip[j]->chip_irq);
 179
 180
 181                         if (!strcmp(hardware_p->candevice[i]->chip[j]->chip_type,"i82527")) {
 182                                 for (k=0; k<15; k++)
 183                                         DEBUGMSG("Obj%d: minor: %d base: 0x%lx\n",k,hardware_p->candevice[i]->chip[j]->msgobj[k]->minor,hardware_p->candevice[i]->chip[j]->msgobj[k]->obj_base_addr);
 184                         }
 185
 186                         if (!strcmp(hardware_p->candevice[i]->chip[j]->chip_type,"sja1000")) {
 187                                 for (k=0; k<1; k++)
 188                                         DEBUGMSG("Obj%d: minor: %d base: 0x%lx\n",k,hardware_p->candevice[i]->chip[j]->msgobj[k]->minor,hardware_p->candevice[i]->chip[j]->msgobj[k]->obj_base_addr);
 189                         }
 190
 191
 192                 }
 193                 i++;
 194         }
 195         return 0;
 196 }