From f695df295da82c8ef801906ad8b00b0e8afa7502 Mon Sep 17 00:00:00 2001 From: Nathaniel Graff Date: Thu, 7 Mar 2019 09:27:31 -0800 Subject: Remove legacy BSP Signed-off-by: Nathaniel Graff --- bsp/drivers/clic/clic_driver.c | 163 ----------------------------------------- bsp/drivers/clic/clic_driver.h | 44 ----------- 2 files changed, 207 deletions(-) delete mode 100644 bsp/drivers/clic/clic_driver.c delete mode 100644 bsp/drivers/clic/clic_driver.h (limited to 'bsp/drivers/clic') diff --git a/bsp/drivers/clic/clic_driver.c b/bsp/drivers/clic/clic_driver.c deleted file mode 100644 index 136ccee..0000000 --- a/bsp/drivers/clic/clic_driver.c +++ /dev/null @@ -1,163 +0,0 @@ -// See LICENSE for license details. - -#include "sifive/devices/clic.h" -#include "clic/clic_driver.h" -#include "platform.h" -#include "encoding.h" -#include - - -void volatile_memzero(uint8_t * base, unsigned int size) { - volatile uint8_t * ptr; - for (ptr = base; ptr < (base + size); ptr++){ - *ptr = 0; - } -} - -// Note that there are no assertions or bounds checking on these -// parameter values. -void clic_init ( - clic_instance_t * this_clic, - uintptr_t hart_addr, - interrupt_function_ptr_t* vect_table, - interrupt_function_ptr_t default_handler, - uint32_t num_irq, - uint32_t num_config_bits - ) -{ - this_clic->hart_addr= hart_addr; - this_clic->vect_table= vect_table; - this_clic->num_config_bits= num_config_bits; - - //initialize vector table - for(int i=0;ivect_table[i] = default_handler; - } - - //set base vectors - write_csr(mtvt, vect_table); - - - //clear all interrupt enables and pending - volatile_memzero((uint8_t*)(this_clic->hart_addr+CLIC_INTIE), num_irq); - volatile_memzero((uint8_t*)(this_clic->hart_addr+CLIC_INTIP), num_irq); - - //clear nlbits and nvbits; all interrupts trap to level 15 - *(volatile uint8_t*)(this_clic->hart_addr+CLIC_CFG)=0; - -} - -void clic_install_handler (clic_instance_t * this_clic, uint32_t source, interrupt_function_ptr_t handler) { - this_clic->vect_table[source] = handler; -} - -void clic_enable_interrupt (clic_instance_t * this_clic, uint32_t source) { - *(volatile uint8_t*)(this_clic->hart_addr+CLIC_INTIE+source) = 1; -} - -void clic_disable_interrupt (clic_instance_t * this_clic, uint32_t source){ - *(volatile uint8_t*)(this_clic->hart_addr+CLIC_INTIE+source) = 0; -} - -void clic_set_pending(clic_instance_t * this_clic, uint32_t source){ - *(volatile uint8_t*)(this_clic->hart_addr+CLIC_INTIP+source) = 1; -} - -void clic_clear_pending(clic_instance_t * this_clic, uint32_t source){ - *(volatile uint8_t*)(this_clic->hart_addr+CLIC_INTIP+source) = 0; -} - -void clic_set_intcfg (clic_instance_t * this_clic, uint32_t source, uint32_t intcfg){ - *(volatile uint8_t*)(this_clic->hart_addr+CLIC_INTCFG+source) = intcfg; -} - -uint8_t clic_get_intcfg (clic_instance_t * this_clic, uint32_t source){ - return *(volatile uint8_t*)(this_clic->hart_addr+CLIC_INTCFG+source); -} - -void clic_set_cliccfg (clic_instance_t * this_clic, uint32_t cfg){ - *(volatile uint8_t*)(this_clic->hart_addr+CLIC_CFG) = cfg; -} - -uint8_t clic_get_cliccfg (clic_instance_t * this_clic){ - return *(volatile uint8_t*)(this_clic->hart_addr+CLIC_CFG); -} - -//sets an interrupt level based encoding of nmbits, nlbits -uint8_t clic_set_int_level( clic_instance_t * this_clic, uint32_t source, uint8_t level) { - //extract nlbits - uint8_t nlbits = clic_get_cliccfg(this_clic); - nlbits = (nlbits >>1) & 0x7; - - //shift level right to mask off unused bits - level = level>>((this_clic->num_config_bits)-nlbits); //plus this_clic->nmbits which is always 0 for now. - //shift level into correct bit position - level = level << (8-this_clic->num_config_bits) + (this_clic->num_config_bits - nlbits); - - //write to clicintcfg - uint8_t current_intcfg = clic_get_intcfg(this_clic, source); - clic_set_intcfg(this_clic, source, (current_intcfg | level)); - - return level; -} - -//gets an interrupt level based encoding of nmbits, nlbits -uint8_t clic_get_int_level( clic_instance_t * this_clic, uint32_t source) { - uint8_t level; - level = clic_get_intcfg(this_clic, source); - - //extract nlbits - uint8_t nlbits = clic_get_cliccfg(this_clic); - nlbits = (nlbits >>1) & 0x7; - - //shift level - level = level >> (8-(this_clic->num_config_bits)); - - //shift level right to mask off priority bits - level = level>>(this_clic->num_config_bits-nlbits); //this_clic->nmbits which is always 0 for now. - - return level; -} - -//sets an interrupt priority based encoding of nmbits, nlbits -uint8_t clic_set_int_priority( clic_instance_t * this_clic, uint32_t source, uint8_t priority) { - //priority bits = num_config_bits - nlbits - //extract nlbits - uint8_t nlbits = clic_get_cliccfg(this_clic); - nlbits = (nlbits >>1) & 0x7; - - uint8_t priority_bits = this_clic->num_config_bits-nlbits; - if(priority_bits = 0) { - //no bits to set - return 0; - } - //mask off unused bits - priority = priority >> (8-priority_bits); - //shift into the correct bit position - priority = priority << (8-(this_clic->num_config_bits)); - - //write to clicintcfg - uint8_t current_intcfg = clic_get_intcfg(this_clic, source); - clic_set_intcfg(this_clic, source, (current_intcfg | priority)); - return current_intcfg; -} - -//gets an interrupt priority based encoding of nmbits, nlbits -uint8_t clic_get_int_priority( clic_instance_t * this_clic, uint32_t source) { - uint8_t priority; - priority = clic_get_intcfg(this_clic, source); - - //extract nlbits - uint8_t nlbits = clic_get_cliccfg(this_clic); - nlbits = (nlbits >>1) & 0x7; - - //shift left to mask off level bits - priority = priority << nlbits; - - //shift priority - priority = priority >> (8-((this_clic->num_config_bits)+nlbits)); - - return priority; -} - - diff --git a/bsp/drivers/clic/clic_driver.h b/bsp/drivers/clic/clic_driver.h deleted file mode 100644 index 27c34c2..0000000 --- a/bsp/drivers/clic/clic_driver.h +++ /dev/null @@ -1,44 +0,0 @@ -// See LICENSE file for licence details - -#ifndef PLIC_DRIVER_H -#define PLIC_DRIVER_H - - -__BEGIN_DECLS - -#include "platform.h" - -typedef void (*interrupt_function_ptr_t) (void); - -typedef struct __clic_instance_t -{ - uintptr_t hart_addr; - interrupt_function_ptr_t* vect_table; - uint32_t num_config_bits; - uint32_t num_sources; -} clic_instance_t; - -// Note that there are no assertions or bounds checking on these -// parameter values. -void clic_init (clic_instance_t * this_clic, uintptr_t hart_addr, interrupt_function_ptr_t* vect_table, interrupt_function_ptr_t default_handler, uint32_t num_irq,uint32_t num_config_bits); -void clic_install_handler (clic_instance_t * this_clic, uint32_t source, interrupt_function_ptr_t handler); -void clic_enable_interrupt (clic_instance_t * this_clic, uint32_t source); -void clic_disable_interrupt (clic_instance_t * this_clic, uint32_t source); -void clic_set_pending(clic_instance_t * this_clic, uint32_t source); -void clic_clear_pending(clic_instance_t * this_clic, uint32_t source); -void clic_set_intcfg (clic_instance_t * this_clic, uint32_t source, uint32_t intcfg); -uint8_t clic_get_intcfg (clic_instance_t * this_clic, uint32_t source); -void clic_set_cliccfg (clic_instance_t * this_clic, uint32_t cfg); -uint8_t clic_get_cliccfg (clic_instance_t * this_clic); -//sets an interrupt level based encoding of nmbits, nlbits -uint8_t clic_set_int_level( clic_instance_t * this_clic, uint32_t source, uint8_t level); -//get an interrupt level based encoding of nmbits, nlbits -uint8_t clic_get_int_level( clic_instance_t * this_clic, uint32_t source); -//sets an interrupt priority based encoding of nmbits, nlbits -uint8_t clic_set_int_priority( clic_instance_t * this_clic, uint32_t source, uint8_t priority); -//sets an interrupt priority based encoding of nmbits, nlbits -uint8_t clic_get_int_priority( clic_instance_t * this_clic, uint32_t source); - -__END_DECLS - -#endif -- cgit v1.2.3