lincan/src/modparms.c

   1 /* mod_parms.c
   2  * Linux CAN-bus device driver.
   3  * Written by Arnaud Westenberg email:arnaud@wanadoo.nl
   4  * Rewritten for new CAN queues by Pavel Pisa - OCERA team member
   5  * email:pisa@cmp.felk.cvut.cz
   6  * This software is released under the GPL-License.
   7  * Version lincan-0.2  9 Jul 2003
   8  */
   9
  10
  11 #include <linux/autoconf.h>
  12
  13 #include ".supported_cards.h"
  14
  15 #ifndef ENABLE_CARD_pip
  16 #define ENABLE_CARD_pip 0
  17 #endif
  18 #ifndef ENABLE_CARD_smartcan
  19 #define ENABLE_CARD_smartcan 0
  20 #endif
  21 #ifndef ENABLE_CARD_pccan
  22 #define ENABLE_CARD_pccan 0
  23 #endif
  24 #ifndef ENABLE_CARD_nsi
  25 #define ENABLE_CARD_nsi 0
  26 #endif
  27 #ifndef ENABLE_CARD_cc_can104
  28 #define ENABLE_CARD_cc_can104 0
  29 #endif
  30 #ifndef ENABLE_CARD_aim104
  31 #define ENABLE_CARD_aim104 0
  32 #endif
  33 #ifndef ENABLE_CARD_pc_i03
  34 #define ENABLE_CARD_pc_i03 0
  35 #endif
  36 #ifndef ENABLE_CARD_pcm3680
  37 #define ENABLE_CARD_pcm3680 0
  38 #endif
  39 #ifndef ENABLE_CARD_m437
  40 #define ENABLE_CARD_m437 0
  41 #endif
  42 #ifndef ENABLE_CARD_pcccan
  43 #define ENABLE_CARD_pcccan 0
  44 #endif
  45 #ifndef ENABLE_CARD_ssv
  46 #define ENABLE_CARD_ssv 0
  47 #endif
  48 #ifndef ENABLE_CARD_bfadcan
  49 #define ENABLE_CARD_bfadcan 0
  50 #endif
  51 #ifndef ENABLE_CARD_pikronisa
  52 #define ENABLE_CARD_pikronisa 0
  53 #endif
  54 #ifndef ENABLE_CARD_template
  55 #define ENABLE_CARD_template 0
  56 #endif
  57
  58 #include <linux/string.h>
  59 #include <linux/fs.h>
  60
  61 #include "../include/main.h"
  62 #include "../include/modparms.h"
  63
  64 int parse_mod_parms(void)
  65 {
  66         int i=0,j=0,irq_needed=0,irq_supplied=0,io_needed=0,io_supplied=0,minor_needed=0,minor_supplied=0;
  67
  68         if ( (hw[0] == NULL) | (irq[0] == -1) | (io[0] == -1) ) {
  69                 CANMSG("You must supply your type of hardware, interrupt numbers and io address.\n");
  70                 CANMSG("Example: # insmod can.o hw=pip5 irq=4 io=0x8000\n");
  71                 return -ENODEV;
  72         }
  73
  74         while ( (hw[i] != NULL) && (i < MAX_HW_CARDS) ) {
  75                 if ( !strcmp(hw[i],"pip5") && ENABLE_CARD_pip )
  76                         irq_needed++;
  77                 else if (!strcmp(hw[i],"pip6") && ENABLE_CARD_pip)
  78                         irq_needed++;
  79                 else if (!strcmp(hw[i],"smartcan") && ENABLE_CARD_smartcan)
  80                         irq_needed++;
  81                 else if (!strcmp(hw[i],"pccan-q") && ENABLE_CARD_pccan)
  82                         irq_needed=irq_needed+4;
  83                 else if (!strcmp(hw[i],"pccan-f") && ENABLE_CARD_pccan)
  84                         irq_needed++;
  85                 else if (!strcmp(hw[i],"pccan-s") && ENABLE_CARD_pccan)
  86                         irq_needed++;
  87                 else if (!strcmp(hw[i],"pccan-d") && ENABLE_CARD_pccan)
  88                         irq_needed=irq_needed+2;
  89                 else if (!strcmp(hw[i],"nsican") && ENABLE_CARD_nsi)
  90                         irq_needed++;
  91                 else if (!strcmp(hw[i],"cc104") && ENABLE_CARD_cc_can104)
  92                         irq_needed++;
  93                 else if (!strcmp(hw[i],"aim104") && ENABLE_CARD_aim104)
  94                         irq_needed++;
  95                 else if (!strcmp(hw[i],"pc-i03") && ENABLE_CARD_pc_i03)
  96                         irq_needed++;
  97                 else if (!strcmp(hw[i],"pcm3680") && ENABLE_CARD_pcm3680)
  98                         irq_needed=irq_needed+2;
  99                 else if (!strcmp(hw[i],"m437") && ENABLE_CARD_m437)
 100                         irq_needed++;
 101                 else if (!strcmp(hw[i],"pcccan") && ENABLE_CARD_pcccan)
 102                         irq_needed++;
 103                 else if (!strcmp(hw[i],"ssv") && ENABLE_CARD_ssv)
 104                         irq_needed=irq_needed+2;
 105                 else if (!strcmp(hw[i],"bfadcan") && ENABLE_CARD_bfadcan)
 106                         irq_needed++;
 107                 else if (!strcmp(hw[i],"pikronisa") && ENABLE_CARD_pikronisa)
 108                         irq_needed++;
 109                 else if (!strcmp(hw[i],"template") && ENABLE_CARD_template);
 110                 else {
 111                         CANMSG("Sorry, hardware \"%s\" is currently not supported.\n",hw[i]);
 112                         return -EINVAL;
 113                 }
 114                 i++;
 115         }
 116
 117         /* Check wether the supplied number of io addresses is correct. */
 118         io_needed=i;
 119         while ( (io[io_supplied] != -1) & (io_supplied<MAX_HW_CARDS) )
 120                 io_supplied++;
 121         if (io_needed != io_supplied) {
 122                 CANMSG("Invalid number of io addresses.\n");
 123                 CANMSG("Supplied hardware needs %d io address(es).\n",io_needed);
 124                 return -EINVAL;
 125         }
 126
 127         /* Check wether the supplied number of irq's is correct. */
 128         while ( (irq[irq_supplied] != -1) & (irq_supplied<MAX_IRQ) )
 129                 irq_supplied++;
 130         while ( (hw[j] != NULL) && (j<MAX_HW_CARDS) ) {
 131                 if (!strcmp(hw[j],"template") && ENABLE_CARD_template)
 132                         irq_needed = irq_supplied;
 133                 j++;
 134         }
 135         if (irq_needed != irq_supplied) {
 136                 CANMSG("Invalid number of interrupts.\n");
 137                 CANMSG("Supplied harware needs %d irq number(s).\n",irq_needed);
 138                 return -EINVAL;
 139         }
 140
 141         /* In case minor numbers were assigned check wether the correct number
 142          * of minor numbers was supplied.
 143          */
 144         if (minor[0] != -1) {
 145                 minor_needed=irq_needed;
 146                 while ((minor[minor_supplied] != -1) & (minor_supplied<MAX_IRQ))
 147                         minor_supplied++;
 148                 if (minor_supplied != minor_needed) {
 149                         CANMSG("Invalid number of minor numbers.\n");
 150                         CANMSG("Supplied hardware needs %d minor number(s).\n",minor_needed);
 151                         return -EINVAL;
 152                 }
 153         }
 154
 155         return 0;
 156 }
 157 /* list_hw is used when debugging is on to show the hardware layout */
 158 int list_hw(void)
 159 {
 160         int i=0,j=0,k=0;
 161
 162         DEBUGMSG("Number of boards : %d\n",hardware_p->nr_boards);
 163
 164         while ( (hw[i] != NULL) & (i<=MAX_HW_CARDS-1) ) {
 165                 printk(KERN_ERR "\n");
 166                 DEBUGMSG("Hardware         : %s\n",hardware_p->candevice[i]->hwname);
 167                 DEBUGMSG("IO address       : 0x%lx\n",hardware_p->candevice[i]->io_addr);
 168                 DEBUGMSG("Nr. all chips    : %d\n",hardware_p->candevice[i]->nr_all_chips);
 169                 DEBUGMSG("Nr. of i82527    : %d\n",hardware_p->candevice[i]->nr_82527_chips);
 170                 DEBUGMSG("Nr. of sja1000   : %d\n",hardware_p->candevice[i]->nr_sja1000_chips);
 171                 for (j=0; j<hardware_p->candevice[i]->nr_all_chips; j++) {
 172                         DEBUGMSG("Chip%d type       : %s\n", j+1, hardware_p->candevice[i]->chip[j]->chip_type);
 173                         DEBUGMSG("Chip base        : 0x%lx\n",hardware_p->candevice[i]->chip[j]->chip_base_addr);
 174                         DEBUGMSG("Interrupt        : %d\n",hardware_p->candevice[i]->chip[j]->chip_irq);
 175
 176
 177                         for (k=0; k<hardware_p->candevice[i]->chip[j]->max_objects; k++)
 178                                 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);
 179
 180                 }
 181                 i++;
 182         }
 183         return 0;
 184 }