From 7632906fc290b652416ab59eb5fb49356c064ed6 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Thu, 19 Apr 2018 06:35:52 +0200 Subject: bsps: Move clock drivers to bsps This patch is a part of the BSP source reorganization. Update #3285. --- c/src/lib/libbsp/sh/gensh2/Makefile.am | 2 +- c/src/lib/libbsp/sh/gensh2/clock/ckinit.c | 243 ------------------------------ 2 files changed, 1 insertion(+), 244 deletions(-) delete mode 100644 c/src/lib/libbsp/sh/gensh2/clock/ckinit.c (limited to 'c/src/lib/libbsp/sh/gensh2') diff --git a/c/src/lib/libbsp/sh/gensh2/Makefile.am b/c/src/lib/libbsp/sh/gensh2/Makefile.am index 76fc51d858..205e13ca8c 100644 --- a/c/src/lib/libbsp/sh/gensh2/Makefile.am +++ b/c/src/lib/libbsp/sh/gensh2/Makefile.am @@ -34,7 +34,7 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/getentropy/getentropy librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspfatal-default.c librtemsbsp_a_SOURCES += ../shared/bsphwinit.c librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspreset-empty.c -librtemsbsp_a_SOURCES += clock/ckinit.c +librtemsbsp_a_SOURCES +=../../../../../../bsps/sh/gensh2/clock/ckinit.c librtemsbsp_a_SOURCES += startup/cpu_asm.c librtemsbsp_a_SOURCES += startup/ispsh7045.c librtemsbsp_a_SOURCES += timer/timer.c diff --git a/c/src/lib/libbsp/sh/gensh2/clock/ckinit.c b/c/src/lib/libbsp/sh/gensh2/clock/ckinit.c deleted file mode 100644 index 5120b594eb..0000000000 --- a/c/src/lib/libbsp/sh/gensh2/clock/ckinit.c +++ /dev/null @@ -1,243 +0,0 @@ -/* - * This file contains the clock driver the Hitachi SH 704X - */ - -/* - * Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and - * Bernd Becker (becker@faw.uni-ulm.de) - * - * COPYRIGHT (c) 1997-1998, FAW Ulm, Germany - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * - * COPYRIGHT (c) 1998. - * On-Line Applications Research Corporation (OAR). - * - * Modified to reflect registers of sh7045 processor: - * John M. Mills (jmills@tga.com) - * TGA Technologies, Inc. - * 100 Pinnacle Way, Suite 140 - * Norcross, GA 30071 U.S.A. - * August, 1999 - * - * This modified file may be copied and distributed in accordance - * the above-referenced license. It is provided for critique and - * developmental purposes without any warranty nor representation - * by the authors or by TGA Technologies. - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - */ - -#include - -#include - -#include -#include -#include -#include -#include - -extern uint32_t bsp_clicks_per_second; - -#define _MTU_COUNTER0_MICROSECOND (Clock_MHZ/16) - -#ifndef CLOCKPRIO -#define CLOCKPRIO 10 -#endif - -#define MTU0_STARTMASK 0xfe -#define MTU0_SYNCMASK 0xfe -#define MTU0_MODEMASK 0xc0 -#define MTU0_TCRMASK 0x22 /* bit 7 also used, vs 703x */ -#define MTU0_STAT_MASK 0xc0 -#define MTU0_IRQMASK 0xfe -#define MTU0_TIERMASK 0x01 -#define IPRC_MTU0_MASK 0xff0f -#define MTU0_TIORVAL 0x08 - -/* - * The interrupt vector number associated with the clock tick device - * driver. - */ - -#define CLOCK_VECTOR MTUA0_ISP_V - -/* - * Clock_driver_ticks is a monotonically increasing counter of the - * number of clock ticks since the driver was initialized. - */ -volatile uint32_t Clock_driver_ticks; - -static rtems_isr Clock_isr( rtems_vector_number vector ); -static uint32_t Clock_MHZ ; - -/* - * Clock_isrs is the number of clock ISRs until the next invocation of - * the RTEMS clock tick routine. The clock tick device driver - * gets an interrupt once a millisecond and counts down until the - * length of time between the user configured microseconds per tick - * has passed. - */ -uint32_t Clock_isrs; /* ISRs until next tick */ -static uint32_t Clock_isrs_const; /* only calculated once */ - -/* - * The previous ISR on this clock tick interrupt vector. - */ -rtems_isr_entry Old_ticker; - -/* - * Isr Handler - */ -static rtems_isr Clock_isr( - rtems_vector_number vector -) -{ - /* - * bump the number of clock driver ticks since initialization - * - - * determine if it is time to announce the passing of tick as configured - * to RTEMS through the rtems_clock_tick directive - * - * perform any timer dependent tasks - */ - uint8_t temp; - - /* reset the flags of the status register */ - temp = read8( MTU_TSR0) & MTU0_STAT_MASK; - write8( temp, MTU_TSR0); - - Clock_driver_ticks++ ; - - if( Clock_isrs == 1) - { - rtems_clock_tick(); - Clock_isrs = Clock_isrs_const; - } - else - { - Clock_isrs-- ; - } -} - -/* - * Install_clock - * - * Install a clock tick handler and reprograms the chip. This - * is used to initially establish the clock tick. - */ -static void Install_clock( - rtems_isr_entry clock_isr -) -{ - uint8_t temp8 = 0; - uint32_t factor = 1000000; - - /* - * Initialize the clock tick device driver variables - */ - - Clock_driver_ticks = 0; - Clock_isrs_const = rtems_configuration_get_microseconds_per_tick() / 10000; - Clock_isrs = Clock_isrs_const; - - factor /= rtems_configuration_get_microseconds_per_tick(); /* minimalization of integer division error */ - Clock_MHZ = bsp_clicks_per_second / factor ; - - rtems_interrupt_catch( Clock_isr, CLOCK_VECTOR, &Old_ticker ); - - /* - * Hardware specific initialize goes here - */ - - /* stop Timer 0 */ - temp8 = read8( MTU_TSTR) & MTU0_STARTMASK; - write8( temp8, MTU_TSTR); - - /* set initial counter value to 0 */ - write16( 0, MTU_TCNT0); - - /* Timer 0 runs independent */ - temp8 = read8( MTU_TSYR) & MTU0_SYNCMASK; - write8( temp8, MTU_TSYR); - - /* Timer 0 normal mode */ - temp8 = read8( MTU_TMDR0) & MTU0_MODEMASK; - write8( temp8, MTU_TMDR0); - - /* TCNT is cleared by GRA ; internal clock /16 */ - write8( MTU0_TCRMASK , MTU_TCR0); - - /* use GRA without I/O - pins */ - write8( MTU0_TIORVAL, MTU_TIORL0); - - /* reset flags of the status register */ - temp8 = read8( MTU_TSR0) & MTU0_STAT_MASK; - write8( temp8, MTU_TSR0); - - /* Irq if is equal GRA */ - temp8 = read8( MTU_TIER0) | MTU0_TIERMASK; - write8( temp8, MTU_TIER0); - - /* set interrupt priority */ - if( sh_set_irq_priority( CLOCK_VECTOR, CLOCKPRIO ) != RTEMS_SUCCESSFUL) - rtems_fatal_error_occurred( RTEMS_NOT_CONFIGURED); - - /* set counter limits */ - write16( _MTU_COUNTER0_MICROSECOND, MTU_GR0A); - - /* start counter */ - temp8 = read8( MTU_TSTR) |~MTU0_STARTMASK; - write8( temp8, MTU_TSTR); - - /* - * Schedule the clock cleanup routine to execute if the application exits. - */ - atexit( Clock_exit ); -} - -/* - * Clean up before the application exits - */ -void Clock_exit( void ) -{ - uint8_t temp8 = 0; - - /* turn off the timer interrupts */ - /* set interrupt priority to 0 */ - if( sh_set_irq_priority( CLOCK_VECTOR, 0 ) != RTEMS_SUCCESSFUL) - rtems_fatal_error_occurred( RTEMS_UNSATISFIED); - -/* - * temp16 = read16( MTU_TIER0) & IPRC_MTU0_IRQMASK; - * write16( temp16, MTU_TIER0); - */ - - /* stop counter */ - temp8 = read8( MTU_TSTR) & MTU0_STARTMASK; - write8( temp8, MTU_TSTR); - - /* old vector shall not be installed */ -} - -/* - * Clock_initialize - * - * Device driver entry point for clock tick driver initialization. - */ -rtems_device_driver Clock_initialize( - rtems_device_major_number major, - rtems_device_minor_number minor, - void *pargp -) -{ - Install_clock( Clock_isr ); - - return RTEMS_SUCCESSFUL; -} -- cgit v1.2.3