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/slab.h> 20#include <linux/interrupt.h> 21#include <linux/kernel_stat.h> 22#include <linux/random.h> 23 24#include <asm/io.h> 25#include <asm/gdb-stub.h> 26#include <int.h> 27#include <uart.h> 28 29 30static int pnx8550_timers_read (char* page, char** start, off_t offset, int count, int* eof, void* data) 31{ 32 int len = 0; 33 int configPR = read_c0_config7(); 34 35 if (offset==0) { 36 len += sprintf(&page[len],"Timer: count, compare, tc, status\n"); 37 len += sprintf(&page[len]," 1: %11i, %8i, %1i, %s\n", 38 read_c0_count(), read_c0_compare(), 39 (configPR>>6)&0x1, ((configPR>>3)&0x1)? "off":"on"); 40 len += sprintf(&page[len]," 2: %11i, %8i, %1i, %s\n", 41 read_c0_count2(), read_c0_compare2(), 42 (configPR>>7)&0x1, ((configPR>>4)&0x1)? "off":"on"); 43 len += sprintf(&page[len]," 3: %11i, %8i, %1i, %s\n", 44 read_c0_count3(), read_c0_compare3(), 45 (configPR>>8)&0x1, ((configPR>>5)&0x1)? "off":"on"); 46 } 47 48 return len; 49} 50 51static int pnx8550_registers_read (char* page, char** start, off_t offset, int count, int* eof, void* data) 52{ 53 int len = 0; 54 55 if (offset==0) { 56 len += sprintf(&page[len],"config1: %#10.8x\n",read_c0_config1()); 57 len += sprintf(&page[len],"config2: %#10.8x\n",read_c0_config2()); 58 len += sprintf(&page[len],"config3: %#10.8x\n",read_c0_config3()); 59 len += sprintf(&page[len],"configPR: %#10.8x\n",read_c0_config7()); 60 len += sprintf(&page[len],"status: %#10.8x\n",read_c0_status()); 61 len += sprintf(&page[len],"cause: %#10.8x\n",read_c0_cause()); 62 len += sprintf(&page[len],"count: %#10.8x\n",read_c0_count()); 63 len += sprintf(&page[len],"count_2: %#10.8x\n",read_c0_count2()); 64 len += sprintf(&page[len],"count_3: %#10.8x\n",read_c0_count3()); 65 len += sprintf(&page[len],"compare: %#10.8x\n",read_c0_compare()); 66 len += sprintf(&page[len],"compare_2: %#10.8x\n",read_c0_compare2()); 67 len += sprintf(&page[len],"compare_3: %#10.8x\n",read_c0_compare3()); 68 } 69 70 return len; 71} 72 73static struct proc_dir_entry* pnx8550_dir = NULL; 74static struct proc_dir_entry* pnx8550_timers = NULL; 75static struct proc_dir_entry* pnx8550_registers = NULL; 76 77static int pnx8550_proc_init( void ) 78{ 79 80 // Create /proc/pnx8550 81 pnx8550_dir = create_proc_entry("pnx8550", S_IFDIR|S_IRUGO, NULL); 82 if (!pnx8550_dir) { 83 printk(KERN_ERR "Can't create pnx8550 proc dir\n"); 84 return -1; 85 } 86 87 // Create /proc/pnx8550/timers 88 pnx8550_timers = create_proc_entry("timers", S_IFREG|S_IRUGO, pnx8550_dir ); 89 if (pnx8550_timers){ 90 pnx8550_timers->read_proc = pnx8550_timers_read; 91 } 92 else { 93 printk(KERN_ERR "Can't create pnx8550 timers proc file\n"); 94 } 95 96 // Create /proc/pnx8550/registers 97 pnx8550_registers = create_proc_entry("registers", S_IFREG|S_IRUGO, pnx8550_dir ); 98 if (pnx8550_registers){ 99 pnx8550_registers->read_proc = pnx8550_registers_read; 100 } 101 else { 102 printk(KERN_ERR "Can't create pnx8550 registers proc file\n"); 103 } 104 105 return 0; 106} 107 108__initcall(pnx8550_proc_init); 109