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
pnx8550_timers_read(char * page,char ** start,off_t offset,int count,int * eof,void * data)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
pnx8550_registers_read(char * page,char ** start,off_t offset,int count,int * eof,void * data)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
pnx8550_proc_init(void)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);
111