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https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-11-07 04:09:21 +00:00
h8300: update timer handler - new files
New timer handler files. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Yoshinori Sato
Linus Torvalds
parent
4b6aba51fb
commit
e0b0f9e4ea
6 changed files with 397 additions and 0 deletions
6
arch/h8300/kernel/timer/Makefile
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6
arch/h8300/kernel/timer/Makefile
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# h8300 internal timer handler
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obj-$(CONFIG_H8300_TIMER8) := timer8.o
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obj-$(CONFIG_H8300_TIMER16) := timer16.o
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obj-$(CONFIG_H8300_ITU) := itu.o
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obj-$(CONFIG_H8300_TPU) := tpu.o
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83
arch/h8300/kernel/timer/itu.c
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83
arch/h8300/kernel/timer/itu.c
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/*
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* linux/arch/h8300/kernel/timer/itu.c
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*
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* Yoshinori Sato <ysato@users.sourcefoge.jp>
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*
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* ITU Timer Handler
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*
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*/
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#include <linux/errno.h>
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#include <linux/sched.h>
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#include <linux/kernel.h>
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#include <linux/param.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/timex.h>
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#include <asm/segment.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/regs306x.h>
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#if CONFIG_H8300_ITU_CH == 0
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#define ITUBASE 0xffff64
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#define ITUIRQ 24
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#elif CONFIG_H8300_ITU_CH == 1
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#define ITUBASE 0xffff6e
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#define ITUIRQ 28
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#elif CONFIG_H8300_ITU_CH == 2
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#define ITUBASE 0xffff78
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#define ITUIRQ 32
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#elif CONFIG_H8300_ITU_CH == 3
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#define ITUBASE 0xffff82
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#define ITUIRQ 36
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#elif CONFIG_H8300_ITU_CH == 4
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#define ITUBASE 0xffff92
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#define ITUIRQ 40
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#else
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#error Unknown timer channel.
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#endif
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#define TCR 0
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#define TIOR 1
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#define TIER 2
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#define TSR 3
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#define TCNT 4
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#define GRA 6
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#define GRB 8
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static irqreturn_t timer_interrupt(int irq, void *dev_id)
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{
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h8300_timer_tick();
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ctrl_bclr(IMFA, ITUBASE + TSR);
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return IRQ_HANDLED;
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}
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static struct irqaction itu_irq = {
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.name = "itu",
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.handler = timer_interrupt,
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.flags = IRQF_DISABLED | IRQF_TIMER,
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.mask = CPU_MASK_NONE,
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};
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static const int __initdata divide_rate[] = {1, 2, 4, 8};
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void __init h8300_timer_setup(void)
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{
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unsigned int div;
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unsigned int cnt;
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calc_param(cnt, div, divide_rate, 0x10000);
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setup_irq(ITUIRQ, &itu_irq);
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/* initalize timer */
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ctrl_outb(0, TSTR);
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ctrl_outb(CCLR0 | div, ITUBASE + TCR);
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ctrl_outb(0x01, ITUBASE + TIER);
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ctrl_outw(cnt, ITUBASE + GRA);
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ctrl_bset(CONFIG_H8300_ITU_CH, TSTR);
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}
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78
arch/h8300/kernel/timer/timer16.c
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arch/h8300/kernel/timer/timer16.c
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/*
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* linux/arch/h8300/kernel/timer/timer16.c
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*
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* Yoshinori Sato <ysato@users.sourcefoge.jp>
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*
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* 16bit Timer Handler
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*
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*/
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#include <linux/errno.h>
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#include <linux/sched.h>
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#include <linux/kernel.h>
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#include <linux/param.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/timex.h>
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#include <asm/segment.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/regs306x.h>
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/* 16bit timer */
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#if CONFIG_H8300_TIMER16_CH == 0
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#define _16BASE 0xffff78
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#define _16IRQ 24
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#elif CONFIG_H8300_TIMER16_CH == 1
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#define _16BASE 0xffff80
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#define _16IRQ 28
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#elif CONFIG_H8300_TIMER16_CH == 2
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#define _16BASE 0xffff88
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#define _16IRQ 32
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#else
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#error Unknown timer channel.
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#endif
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#define TCR 0
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#define TIOR 1
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#define TCNT 2
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#define GRA 4
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#define GRB 6
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#define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*10000 /* Timer input freq. */
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static irqreturn_t timer_interrupt(int irq, void *dev_id)
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{
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h8300_timer_tick();
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ctrl_bclr(CONFIG_H8300_TIMER16_CH, TISRA);
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return IRQ_HANDLED;
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}
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static struct irqaction timer16_irq = {
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.name = "timer-16",
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.handler = timer_interrupt,
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.flags = IRQF_DISABLED | IRQF_TIMER,
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.mask = CPU_MASK_NONE,
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};
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static const int __initdata divide_rate[] = {1, 2, 4, 8};
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void __init h8300_timer_setup(void)
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{
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unsigned int div;
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unsigned int cnt;
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calc_param(cnt, div, divide_rate, 0x10000);
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setup_irq(_16IRQ, &timer16_irq);
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/* initalize timer */
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ctrl_outb(0, TSTR);
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ctrl_outb(CCLR0 | div, _16BASE + TCR);
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ctrl_outw(cnt, _16BASE + GRA);
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ctrl_bset(4 + CONFIG_H8300_TIMER16_CH, TISRA);
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ctrl_bset(CONFIG_H8300_TIMER16_CH, TSTR);
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}
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103
arch/h8300/kernel/timer/timer8.c
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103
arch/h8300/kernel/timer/timer8.c
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/*
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* linux/arch/h8300/kernel/cpu/timer/timer8.c
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*
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* Yoshinori Sato <ysato@users.sourcefoge.jp>
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*
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* 8bit Timer Handler
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*
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*/
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#include <linux/errno.h>
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#include <linux/sched.h>
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#include <linux/kernel.h>
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#include <linux/param.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/profile.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/timer.h>
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#if defined(CONFIG_CPU_H8300H)
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#include <asm/regs306x.h>
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#endif
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#if defined(CONFIG_CPU_H8S)
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#include <asm/regs267x.h>
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#endif
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/* 8bit timer x2 */
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#define CMFA 6
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#if defined(CONFIG_H8300_TIMER8_CH0)
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#define _8BASE _8TCR0
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#ifdef CONFIG_CPU_H8300H
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#define _8IRQ 36
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#endif
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#ifdef CONFIG_CPU_H8S
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#define _8IRQ 72
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#endif
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#elif defined(CONFIG_H8300_TIMER8_CH2)
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#ifdef CONFIG_CPU_H8300H
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#define _8BASE _8TCR2
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#define _8IRQ 40
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#endif
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#endif
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#ifndef _8BASE
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#error Unknown timer channel.
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#endif
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#define _8TCR 0
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#define _8TCSR 2
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#define TCORA 4
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#define TCORB 6
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#define _8TCNT 8
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#define CMIEA 0x40
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#define CCLR_CMA 0x08
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#define CKS2 0x04
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/*
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* timer_interrupt() needs to keep up the real-time clock,
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* as well as call the "do_timer()" routine every clocktick
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*/
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static irqreturn_t timer_interrupt(int irq, void *dev_id)
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{
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h8300_timer_tick();
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ctrl_bclr(CMFA, _8BASE + _8TCSR);
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return IRQ_HANDLED;
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}
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static struct irqaction timer8_irq = {
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.name = "timer-8",
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.handler = timer_interrupt,
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.flags = IRQF_DISABLED | IRQF_TIMER,
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.mask = CPU_MASK_NONE,
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};
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static const int __initdata divide_rate[] = {8, 64, 8192};
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void __init h8300_timer_setup(void)
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{
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unsigned int div;
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unsigned int cnt;
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calc_param(cnt, div, divide_rate, 0x10000);
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div++;
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setup_irq(_8IRQ, &timer8_irq);
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#if defined(CONFIG_CPU_H8S)
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/* Timer module enable */
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ctrl_bclr(0, MSTPCRL)
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#endif
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/* initalize timer */
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ctrl_outw(cnt, _8BASE + TCORA);
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ctrl_outw(0x0000, _8BASE + _8TCSR);
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ctrl_outw((CMIEA|CCLR_CMA|CKS2) << 8 | div,
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_8BASE + _8TCR);
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}
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102
arch/h8300/kernel/timer/tpu.c
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102
arch/h8300/kernel/timer/tpu.c
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/*
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* linux/arch/h8300/kernel/timer/tpu.c
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*
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* Yoshinori Sato <ysato@users.sourceforge.jp>
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*
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* TPU Timer Handler
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*
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*/
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#include <linux/config.h>
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#include <linux/errno.h>
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#include <linux/sched.h>
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#include <linux/kernel.h>
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#include <linux/param.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/timex.h>
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#include <asm/segment.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/regs267x.h>
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/* TPU */
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#if CONFIG_H8300_TPU_CH == 0
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#define TPUBASE 0xffffd0
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#define TPUIRQ 40
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#elif CONFIG_H8300_TPU_CH == 1
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#define TPUBASE 0xffffe0
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#define TPUIRQ 48
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#elif CONFIG_H8300_TPU_CH == 2
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#define TPUBASE 0xfffff0
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#define TPUIRQ 52
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#elif CONFIG_H8300_TPU_CH == 3
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#define TPUBASE 0xfffe80
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#define TPUIRQ 56
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#elif CONFIG_H8300_TPU_CH == 4
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#define TPUBASE 0xfffe90
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#define TPUIRQ 64
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#else
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#error Unknown timer channel.
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#endif
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#define _TCR 0
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#define _TMDR 1
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#define _TIOR 2
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#define _TIER 4
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#define _TSR 5
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#define _TCNT 6
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#define _GRA 8
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#define _GRB 10
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#define CCLR0 0x20
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static irqreturn_t timer_interrupt(int irq, void *dev_id)
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{
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h8300_timer_tick();
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ctrl_bclr(0, TPUBASE + _TSR);
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return IRQ_HANDLED;
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}
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static struct irqaction tpu_irq = {
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.name = "tpu",
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.handler = timer_interrupt,
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.flags = IRQF_DISABLED | IRQF_TIMER,
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.mask = CPU_MASK_NONE,
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};
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const static int __initdata divide_rate[] = {
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#if CONFIG_H8300_TPU_CH == 0
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1,4,16,64,0,0,0,0,
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#elif (CONFIG_H8300_TPU_CH == 1) || (CONFIG_H8300_TPU_CH == 5)
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1,4,16,64,0,0,256,0,
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#elif (CONFIG_H8300_TPU_CH == 2) || (CONFIG_H8300_TPU_CH == 4)
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1,4,16,64,0,0,0,1024,
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#elif CONFIG_H8300_TPU_CH == 3
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1,4,16,64,0,1024,256,4096,
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#endif
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};
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void __init h8300_timer_setup(void)
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{
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unsigned int cnt;
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unsigned int div;
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calc_param(cnt, div, divide_rate, 0x10000);
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setup_irq(TPUIRQ, &tpu_irq);
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/* TPU module enabled */
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ctrl_bclr(3, MSTPCRH);
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ctrl_outb(0, TSTR);
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ctrl_outb(CCLR0 | div, TPUBASE + _TCR);
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ctrl_outb(0, TPUBASE + _TMDR);
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ctrl_outw(0, TPUBASE + _TIOR);
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ctrl_outb(0x01, TPUBASE + _TIER);
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ctrl_outw(cnt, TPUBASE + _GRA);
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ctrl_bset(CONFIG_H8300_TPU_CH, TSTR);
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}
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25
include/asm-h8300/timer.h
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25
include/asm-h8300/timer.h
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#ifndef __H8300_TIMER_H
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#define __H8300_TIMER_H
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void h8300_timer_tick(void);
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void h8300_timer_setup(void);
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void h8300_gettod(unsigned int *year, unsigned int *mon, unsigned int *day,
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unsigned int *hour, unsigned int *min, unsigned int *sec);
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#define TIMER_FREQ (CONFIG_CPU_CLOCK*10000) /* Timer input freq. */
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#define calc_param(cnt, div, rate, limit) \
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do { \
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cnt = TIMER_FREQ / HZ; \
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for (div = 0; div < ARRAY_SIZE(divide_rate); div++) { \
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if (rate[div] == 0) \
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continue; \
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if ((cnt / rate[div]) > limit) \
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break; \
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} \
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if (div == ARRAY_SIZE(divide_rate)) \
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panic("Timer counter overflow"); \
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cnt /= divide_rate[div]; \
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} while(0)
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#endif
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