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
 28static 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
 49static 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
 71static struct proc_dir_entry* pnx8550_dir;
 72static struct proc_dir_entry* pnx8550_timers;
 73static struct proc_dir_entry* pnx8550_registers;
 74
 75static 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);