b653d081c1
Bug: pnx8550 code creates directory but resets ->nlink to 1. create_proc_entry() et al will correctly set ->nlink for you. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Corey Minyard <minyard@acm.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Greg KH <greg@kroah.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
109 lines
4.1 KiB
C
109 lines
4.1 KiB
C
/*
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* This program is free software; you can distribute it and/or modify it
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* under the terms of the GNU General Public License (Version 2) as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
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*/
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#include <linux/init.h>
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#include <linux/proc_fs.h>
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#include <linux/irq.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/kernel_stat.h>
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#include <linux/random.h>
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#include <asm/io.h>
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#include <asm/gdb-stub.h>
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#include <int.h>
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#include <uart.h>
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static int pnx8550_timers_read (char* page, char** start, off_t offset, int count, int* eof, void* data)
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{
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int len = 0;
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int configPR = read_c0_config7();
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if (offset==0) {
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len += sprintf(&page[len],"Timer: count, compare, tc, status\n");
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len += sprintf(&page[len]," 1: %11i, %8i, %1i, %s\n",
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read_c0_count(), read_c0_compare(),
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(configPR>>6)&0x1, ((configPR>>3)&0x1)? "off":"on");
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len += sprintf(&page[len]," 2: %11i, %8i, %1i, %s\n",
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read_c0_count2(), read_c0_compare2(),
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(configPR>>7)&0x1, ((configPR>>4)&0x1)? "off":"on");
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len += sprintf(&page[len]," 3: %11i, %8i, %1i, %s\n",
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read_c0_count3(), read_c0_compare3(),
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(configPR>>8)&0x1, ((configPR>>5)&0x1)? "off":"on");
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}
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return len;
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}
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static int pnx8550_registers_read (char* page, char** start, off_t offset, int count, int* eof, void* data)
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{
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int len = 0;
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if (offset==0) {
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len += sprintf(&page[len],"config1: %#10.8x\n",read_c0_config1());
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len += sprintf(&page[len],"config2: %#10.8x\n",read_c0_config2());
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len += sprintf(&page[len],"config3: %#10.8x\n",read_c0_config3());
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len += sprintf(&page[len],"configPR: %#10.8x\n",read_c0_config7());
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len += sprintf(&page[len],"status: %#10.8x\n",read_c0_status());
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len += sprintf(&page[len],"cause: %#10.8x\n",read_c0_cause());
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len += sprintf(&page[len],"count: %#10.8x\n",read_c0_count());
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len += sprintf(&page[len],"count_2: %#10.8x\n",read_c0_count2());
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len += sprintf(&page[len],"count_3: %#10.8x\n",read_c0_count3());
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len += sprintf(&page[len],"compare: %#10.8x\n",read_c0_compare());
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len += sprintf(&page[len],"compare_2: %#10.8x\n",read_c0_compare2());
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len += sprintf(&page[len],"compare_3: %#10.8x\n",read_c0_compare3());
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}
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return len;
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}
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static struct proc_dir_entry* pnx8550_dir = NULL;
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static struct proc_dir_entry* pnx8550_timers = NULL;
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static struct proc_dir_entry* pnx8550_registers = NULL;
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static int pnx8550_proc_init( void )
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{
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// Create /proc/pnx8550
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pnx8550_dir = create_proc_entry("pnx8550", S_IFDIR|S_IRUGO, NULL);
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if (!pnx8550_dir) {
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printk(KERN_ERR "Can't create pnx8550 proc dir\n");
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return -1;
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}
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// Create /proc/pnx8550/timers
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pnx8550_timers = create_proc_entry("timers", S_IFREG|S_IRUGO, pnx8550_dir );
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if (pnx8550_timers){
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pnx8550_timers->read_proc = pnx8550_timers_read;
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}
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else {
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printk(KERN_ERR "Can't create pnx8550 timers proc file\n");
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}
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// Create /proc/pnx8550/registers
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pnx8550_registers = create_proc_entry("registers", S_IFREG|S_IRUGO, pnx8550_dir );
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if (pnx8550_registers){
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pnx8550_registers->read_proc = pnx8550_registers_read;
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}
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else {
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printk(KERN_ERR "Can't create pnx8550 registers proc file\n");
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}
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return 0;
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}
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__initcall(pnx8550_proc_init);
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