arch/mips/pnx8550/common/proc.c

   1 /*
   2  *  This program is free software; you can distribute it and/or modify it
   3  *  under the terms of the GNU General Public License (Version 2) as
   4  *  published by the Free Software Foundation.
   5  *
   6  *  This program is distributed in the hope it will be useful, but WITHOUT
   7  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   8  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   9  *  for more details.
  10  *
  11  *  You should have received a copy of the GNU General Public License along
  12  *  with this program; if not, write to the Free Software Foundation, Inc.,
  13  *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  14  */
  15 #include <linux/init.h>
  16 #include <linux/proc_fs.h>
  17 #include <linux/irq.h>
  18 #include <linux/sched.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/kernel_stat.h>
  21 #include <linux/random.h>
  22
  23 #include <asm/io.h>
  24 #include <int.h>
  25 #include <uart.h>
  26
  27
  28 static int pnx8550_timers_read(char* page, char** start, off_t offset, int count, int* eof, void* data)
  29 {
  30         int len = 0;
  31         int configPR = read_c0_config7();
  32
  33         if (offset==0) {
  34                 len += sprintf(&page[len], "Timer:       count,  compare, tc, status\n");
  35                 len += sprintf(&page[len], "    1: %11i, %8i,  %1i, %s\n",
  36                                read_c0_count(), read_c0_compare(),
  37                               (configPR>>6)&0x1, ((configPR>>3)&0x1)? "off":"on");
  38                 len += sprintf(&page[len], "    2: %11i, %8i,  %1i, %s\n",
  39                                read_c0_count2(), read_c0_compare2(),
  40                               (configPR>>7)&0x1, ((configPR>>4)&0x1)? "off":"on");
  41                 len += sprintf(&page[len], "    3: %11i, %8i,  %1i, %s\n",
  42                                read_c0_count3(), read_c0_compare3(),
  43                               (configPR>>8)&0x1, ((configPR>>5)&0x1)? "off":"on");
  44         }
  45
  46         return len;
  47 }
  48
  49 static int pnx8550_registers_read(char* page, char** start, off_t offset, int count, int* eof, void* data)
  50 {
  51         int len = 0;
  52
  53         if (offset==0) {
  54                 len += sprintf(&page[len], "config1:   %#10.8x\n", read_c0_config1());
  55                 len += sprintf(&page[len], "config2:   %#10.8x\n", read_c0_config2());
  56                 len += sprintf(&page[len], "config3:   %#10.8x\n", read_c0_config3());
  57                 len += sprintf(&page[len], "configPR:  %#10.8x\n", read_c0_config7());
  58                 len += sprintf(&page[len], "status:    %#10.8x\n", read_c0_status());
  59                 len += sprintf(&page[len], "cause:     %#10.8x\n", read_c0_cause());
  60                 len += sprintf(&page[len], "count:     %#10.8x\n", read_c0_count());
  61                 len += sprintf(&page[len], "count_2:   %#10.8x\n", read_c0_count2());
  62                 len += sprintf(&page[len], "count_3:   %#10.8x\n", read_c0_count3());
  63                 len += sprintf(&page[len], "compare:   %#10.8x\n", read_c0_compare());
  64                 len += sprintf(&page[len], "compare_2: %#10.8x\n", read_c0_compare2());
  65                 len += sprintf(&page[len], "compare_3: %#10.8x\n", read_c0_compare3());
  66         }
  67
  68         return len;
  69 }
  70
  71 static struct proc_dir_entry* pnx8550_dir;
  72 static struct proc_dir_entry* pnx8550_timers;
  73 static struct proc_dir_entry* pnx8550_registers;
  74
  75 static int pnx8550_proc_init( void )
  76 {
  77
  78         // Create /proc/pnx8550
  79         pnx8550_dir = proc_mkdir("pnx8550", NULL);
  80         if (!pnx8550_dir) {
  81                 printk(KERN_ERR "Can't create pnx8550 proc dir\n");
  82                 return -1;
  83         }
  84
  85         // Create /proc/pnx8550/timers
  86         pnx8550_timers = create_proc_read_entry(
  87                 "timers",
  88                 0,
  89                 pnx8550_dir,
  90                 pnx8550_timers_read,
  91                 NULL);
  92
  93         if (!pnx8550_timers)
  94                 printk(KERN_ERR "Can't create pnx8550 timers proc file\n");
  95
  96         // Create /proc/pnx8550/registers
  97         pnx8550_registers = create_proc_read_entry(
  98                 "registers",
  99                 0,
 100                 pnx8550_dir,
 101                 pnx8550_registers_read,
 102                 NULL);
 103
 104         if (!pnx8550_registers)
 105                 printk(KERN_ERR "Can't create pnx8550 registers proc file\n");
 106
 107         return 0;
 108 }
 109
 110 __initcall(pnx8550_proc_init);