Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756455AbYHCEfo (ORCPT ); Sun, 3 Aug 2008 00:35:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751297AbYHCEek (ORCPT ); Sun, 3 Aug 2008 00:34:40 -0400 Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.122]:44127 "EHLO cdptpa-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751425AbYHCEeg (ORCPT ); Sun, 3 Aug 2008 00:34:36 -0400 Date: Sun, 03 Aug 2008 00:33:54 -0400 Message-ID: <87bq0a7m4t.wl%ysato@users.sourceforge.jp> From: Yoshinori Sato To: Andrew Morton Cc: lkml Subject: [PATCH 1/3] h8300 update timer handler - new files User-Agent: Wanderlust/2.15.6 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?ISO-8859-4?Q?Goj=F2?=) APEL/10.7 Emacs/22.2 (x86_64-pc-linux-gnu) MULE/5.0 (SAKAKI) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 10140 Lines: 446 New timer handler files. Signed-off-by: Yoshinori Sato diff --git a/arch/h8300/kernel/timer/Makefile b/arch/h8300/kernel/timer/Makefile new file mode 100644 index 0000000..bef0510 --- /dev/null +++ b/arch/h8300/kernel/timer/Makefile @@ -0,0 +1,6 @@ +# h8300 internal timer handler + +obj-$(CONFIG_H8300_TIMER8) := timer8.o +obj-$(CONFIG_H8300_TIMER16) := timer16.o +obj-$(CONFIG_H8300_ITU) := itu.o +obj-$(CONFIG_H8300_TPU) := tpu.o diff --git a/arch/h8300/kernel/timer/itu.c b/arch/h8300/kernel/timer/itu.c new file mode 100644 index 0000000..d1c9265 --- /dev/null +++ b/arch/h8300/kernel/timer/itu.c @@ -0,0 +1,83 @@ +/* + * linux/arch/h8300/kernel/timer/itu.c + * + * Yoshinori Sato + * + * ITU Timer Handler + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#if CONFIG_H8300_ITU_CH == 0 +#define ITUBASE 0xffff64 +#define ITUIRQ 24 +#elif CONFIG_H8300_ITU_CH == 1 +#define ITUBASE 0xffff6e +#define ITUIRQ 28 +#elif CONFIG_H8300_ITU_CH == 2 +#define ITUBASE 0xffff78 +#define ITUIRQ 32 +#elif CONFIG_H8300_ITU_CH == 3 +#define ITUBASE 0xffff82 +#define ITUIRQ 36 +#elif CONFIG_H8300_ITU_CH == 4 +#define ITUBASE 0xffff92 +#define ITUIRQ 40 +#else +#error Unknown timer channel. +#endif + +#define TCR 0 +#define TIOR 1 +#define TIER 2 +#define TSR 3 +#define TCNT 4 +#define GRA 6 +#define GRB 8 + +static irqreturn_t timer_interrupt(int irq, void *dev_id) +{ + h8300_timer_tick(); + ctrl_bclr(IMFA, ITUBASE + TSR); + return IRQ_HANDLED; +} + +static struct irqaction itu_irq = { + .name = "itu", + .handler = timer_interrupt, + .flags = IRQF_DISABLED | IRQF_TIMER, + .mask = CPU_MASK_NONE, +}; + +static const int __initdata divide_rate[] = {1, 2, 4, 8}; + +void __init h8300_timer_setup(void) +{ + unsigned int div; + unsigned int cnt; + + calc_param(cnt, div, divide_rate, 0x10000); + + setup_irq(ITUIRQ, &itu_irq); + + /* initalize timer */ + ctrl_outb(0, TSTR); + ctrl_outb(CCLR0 | div, ITUBASE + TCR); + ctrl_outb(0x01, ITUBASE + TIER); + ctrl_outw(cnt, ITUBASE + GRA); + ctrl_bset(CONFIG_H8300_ITU_CH, TSTR); +} diff --git a/arch/h8300/kernel/timer/timer16.c b/arch/h8300/kernel/timer/timer16.c new file mode 100644 index 0000000..e14271b --- /dev/null +++ b/arch/h8300/kernel/timer/timer16.c @@ -0,0 +1,78 @@ +/* + * linux/arch/h8300/kernel/timer/timer16.c + * + * Yoshinori Sato + * + * 16bit Timer Handler + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +/* 16bit timer */ +#if CONFIG_H8300_TIMER16_CH == 0 +#define _16BASE 0xffff78 +#define _16IRQ 24 +#elif CONFIG_H8300_TIMER16_CH == 1 +#define _16BASE 0xffff80 +#define _16IRQ 28 +#elif CONFIG_H8300_TIMER16_CH == 2 +#define _16BASE 0xffff88 +#define _16IRQ 32 +#else +#error Unknown timer channel. +#endif + +#define TCR 0 +#define TIOR 1 +#define TCNT 2 +#define GRA 4 +#define GRB 6 + +#define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*10000 /* Timer input freq. */ + +static irqreturn_t timer_interrupt(int irq, void *dev_id) +{ + h8300_timer_tick(); + ctrl_bclr(CONFIG_H8300_TIMER16_CH, TISRA); + return IRQ_HANDLED; +} + +static struct irqaction timer16_irq = { + .name = "timer-16", + .handler = timer_interrupt, + .flags = IRQF_DISABLED | IRQF_TIMER, + .mask = CPU_MASK_NONE, +}; + +static const int __initdata divide_rate[] = {1, 2, 4, 8}; + +void __init h8300_timer_setup(void) +{ + unsigned int div; + unsigned int cnt; + + calc_param(cnt, div, divide_rate, 0x10000); + + setup_irq(_16IRQ, &timer16_irq); + + /* initalize timer */ + ctrl_outb(0, TSTR); + ctrl_outb(CCLR0 | div, _16BASE + TCR); + ctrl_outw(cnt, _16BASE + GRA); + ctrl_bset(4 + CONFIG_H8300_TIMER16_CH, TISRA); + ctrl_bset(CONFIG_H8300_TIMER16_CH, TSTR); +} diff --git a/arch/h8300/kernel/timer/timer8.c b/arch/h8300/kernel/timer/timer8.c new file mode 100644 index 0000000..ae500e5 --- /dev/null +++ b/arch/h8300/kernel/timer/timer8.c @@ -0,0 +1,103 @@ +/* + * linux/arch/h8300/kernel/cpu/timer/timer8.c + * + * Yoshinori Sato + * + * 8bit Timer Handler + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#if defined(CONFIG_CPU_H8300H) +#include +#endif +#if defined(CONFIG_CPU_H8S) +#include +#endif + +/* 8bit timer x2 */ +#define CMFA 6 + +#if defined(CONFIG_H8300_TIMER8_CH0) +#define _8BASE _8TCR0 +#ifdef CONFIG_CPU_H8300H +#define _8IRQ 36 +#endif +#ifdef CONFIG_CPU_H8S +#define _8IRQ 72 +#endif +#elif defined(CONFIG_H8300_TIMER8_CH2) +#ifdef CONFIG_CPU_H8300H +#define _8BASE _8TCR2 +#define _8IRQ 40 +#endif +#endif + +#ifndef _8BASE +#error Unknown timer channel. +#endif + +#define _8TCR 0 +#define _8TCSR 2 +#define TCORA 4 +#define TCORB 6 +#define _8TCNT 8 + +#define CMIEA 0x40 +#define CCLR_CMA 0x08 +#define CKS2 0x04 + +/* + * timer_interrupt() needs to keep up the real-time clock, + * as well as call the "do_timer()" routine every clocktick + */ + +static irqreturn_t timer_interrupt(int irq, void *dev_id) +{ + h8300_timer_tick(); + ctrl_bclr(CMFA, _8BASE + _8TCSR); + return IRQ_HANDLED; +} + +static struct irqaction timer8_irq = { + .name = "timer-8", + .handler = timer_interrupt, + .flags = IRQF_DISABLED | IRQF_TIMER, + .mask = CPU_MASK_NONE, +}; + +static const int __initdata divide_rate[] = {8, 64, 8192}; + +void __init h8300_timer_setup(void) +{ + unsigned int div; + unsigned int cnt; + + calc_param(cnt, div, divide_rate, 0x10000); + div++; + + setup_irq(_8IRQ, &timer8_irq); + +#if defined(CONFIG_CPU_H8S) + /* Timer module enable */ + ctrl_bclr(0, MSTPCRL) +#endif + + /* initalize timer */ + ctrl_outw(cnt, _8BASE + TCORA); + ctrl_outw(0x0000, _8BASE + _8TCSR); + ctrl_outw((CMIEA|CCLR_CMA|CKS2) << 8 | div, + _8BASE + _8TCR); +} diff --git a/arch/h8300/kernel/timer/tpu.c b/arch/h8300/kernel/timer/tpu.c new file mode 100644 index 0000000..df7f453 --- /dev/null +++ b/arch/h8300/kernel/timer/tpu.c @@ -0,0 +1,102 @@ +/* + * linux/arch/h8300/kernel/timer/tpu.c + * + * Yoshinori Sato + * + * TPU Timer Handler + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +/* TPU */ +#if CONFIG_H8300_TPU_CH == 0 +#define TPUBASE 0xffffd0 +#define TPUIRQ 40 +#elif CONFIG_H8300_TPU_CH == 1 +#define TPUBASE 0xffffe0 +#define TPUIRQ 48 +#elif CONFIG_H8300_TPU_CH == 2 +#define TPUBASE 0xfffff0 +#define TPUIRQ 52 +#elif CONFIG_H8300_TPU_CH == 3 +#define TPUBASE 0xfffe80 +#define TPUIRQ 56 +#elif CONFIG_H8300_TPU_CH == 4 +#define TPUBASE 0xfffe90 +#define TPUIRQ 64 +#else +#error Unknown timer channel. +#endif + +#define _TCR 0 +#define _TMDR 1 +#define _TIOR 2 +#define _TIER 4 +#define _TSR 5 +#define _TCNT 6 +#define _GRA 8 +#define _GRB 10 + +#define CCLR0 0x20 + +static irqreturn_t timer_interrupt(int irq, void *dev_id) +{ + h8300_timer_tick(); + ctrl_bclr(0, TPUBASE + _TSR); + return IRQ_HANDLED; +} + +static struct irqaction tpu_irq = { + .name = "tpu", + .handler = timer_interrupt, + .flags = IRQF_DISABLED | IRQF_TIMER, + .mask = CPU_MASK_NONE, +}; + +const static int __initdata divide_rate[] = { +#if CONFIG_H8300_TPU_CH == 0 + 1,4,16,64,0,0,0,0, +#elif (CONFIG_H8300_TPU_CH == 1) || (CONFIG_H8300_TPU_CH == 5) + 1,4,16,64,0,0,256,0, +#elif (CONFIG_H8300_TPU_CH == 2) || (CONFIG_H8300_TPU_CH == 4) + 1,4,16,64,0,0,0,1024, +#elif CONFIG_H8300_TPU_CH == 3 + 1,4,16,64,0,1024,256,4096, +#endif +}; + +void __init h8300_timer_setup(void) +{ + unsigned int cnt; + unsigned int div; + + calc_param(cnt, div, divide_rate, 0x10000); + + setup_irq(TPUIRQ, &tpu_irq); + + /* TPU module enabled */ + ctrl_bclr(3, MSTPCRH); + + ctrl_outb(0, TSTR); + ctrl_outb(CCLR0 | div, TPUBASE + _TCR); + ctrl_outb(0, TPUBASE + _TMDR); + ctrl_outw(0, TPUBASE + _TIOR); + ctrl_outb(0x01, TPUBASE + _TIER); + ctrl_outw(cnt, TPUBASE + _GRA); + ctrl_bset(CONFIG_H8300_TPU_CH, TSTR); +} diff --git a/include/asm-h8300/timer.h b/include/asm-h8300/timer.h new file mode 100644 index 0000000..b4a8953 --- /dev/null +++ b/include/asm-h8300/timer.h @@ -0,0 +1,25 @@ +#ifndef __H8300_TIMER_H +#define __H8300_TIMER_H + +void h8300_timer_tick(void); +void h8300_timer_setup(void); +void h8300_gettod(unsigned int *year, unsigned int *mon, unsigned int *day, + unsigned int *hour, unsigned int *min, unsigned int *sec); + +#define TIMER_FREQ (CONFIG_CPU_CLOCK*10000) /* Timer input freq. */ + +#define calc_param(cnt, div, rate, limit) \ +do { \ + cnt = TIMER_FREQ / HZ; \ + for (div = 0; div < ARRAY_SIZE(divide_rate); div++) { \ + if (rate[div] == 0) \ + continue; \ + if ((cnt / rate[div]) > limit) \ + break; \ + } \ + if (div == ARRAY_SIZE(divide_rate)) \ + panic("Timer counter overflow"); \ + cnt /= divide_rate[div]; \ +} while(0) + +#endif -- Yoshinori Sato -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/