Firmware/MNRS-BM-BSP
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raven FW with data and interrupt transfer (based on bldc project)

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This commit is contained in:
Stanislaw Kaushanski
2020-09-16 10:28:54 +02:00
parent 4c790f8810
commit 9157a42042
99 changed files with 4254 additions and 3162 deletions
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25
raven/bsp/drivers/plic/plic_driver.c
View File

@ -22,19 +22,20 @@ void PLIC_init (
plic_instance_t * this_plic,
uintptr_t base_addr,
uint32_t num_sources,
uint32_t num_priorities
uint32_t num_priorities,
uint32_t target_hartid
)
{
this_plic->base_addr = base_addr;
this_plic->num_sources = num_sources;
this_plic->num_priorities = num_priorities;
this_plic->target_hartid = target_hartid;
// Disable all interrupts (don't assume that these registers are reset).
unsigned long hart_id = read_csr(mhartid);
volatile_memzero((uint8_t*) (this_plic->base_addr +
PLIC_ENABLE_OFFSET +
(hart_id << PLIC_ENABLE_SHIFT_PER_TARGET)),
(this_plic->target_hartid << PLIC_ENABLE_SHIFT_PER_TARGET)),
(num_sources + 8) / 8);
// Set all priorities to 0 (equal priority -- don't assume that these are reset).
@ -46,7 +47,7 @@ void PLIC_init (
volatile plic_threshold* threshold = (plic_threshold*)
(this_plic->base_addr +
PLIC_THRESHOLD_OFFSET +
(hart_id << PLIC_THRESHOLD_SHIFT_PER_TARGET));
(this_plic->target_hartid << PLIC_THRESHOLD_SHIFT_PER_TARGET));
*threshold = 0;
@ -55,10 +56,9 @@ void PLIC_init (
void PLIC_set_threshold (plic_instance_t * this_plic,
plic_threshold threshold){
unsigned long hart_id = read_csr(mhartid);
volatile plic_threshold* threshold_ptr = (plic_threshold*) (this_plic->base_addr +
PLIC_THRESHOLD_OFFSET +
(hart_id << PLIC_THRESHOLD_SHIFT_PER_TARGET));
(this_plic->target_hartid << PLIC_THRESHOLD_SHIFT_PER_TARGET));
*threshold_ptr = threshold;
@ -67,10 +67,9 @@ void PLIC_set_threshold (plic_instance_t * this_plic,
void PLIC_enable_interrupt (plic_instance_t * this_plic, plic_source source){
unsigned long hart_id = read_csr(mhartid);
volatile uint8_t * current_ptr = (volatile uint8_t *)(this_plic->base_addr +
PLIC_ENABLE_OFFSET +
(hart_id << PLIC_ENABLE_SHIFT_PER_TARGET) +
(this_plic->target_hartid << PLIC_ENABLE_SHIFT_PER_TARGET) +
(source >> 3));
uint8_t current = *current_ptr;
current = current | ( 1 << (source & 0x7));
@ -80,10 +79,9 @@ void PLIC_enable_interrupt (plic_instance_t * this_plic, plic_source source){
void PLIC_disable_interrupt (plic_instance_t * this_plic, plic_source source){
unsigned long hart_id = read_csr(mhartid);
volatile uint8_t * current_ptr = (volatile uint8_t *) (this_plic->base_addr +
PLIC_ENABLE_OFFSET +
(hart_id << PLIC_ENABLE_SHIFT_PER_TARGET) +
(this_plic->target_hartid << PLIC_ENABLE_SHIFT_PER_TARGET) +
(source >> 3));
uint8_t current = *current_ptr;
current = current & ~(( 1 << (source & 0x7)));
@ -104,12 +102,10 @@ void PLIC_set_priority (plic_instance_t * this_plic, plic_source source, plic_pr
plic_source PLIC_claim_interrupt(plic_instance_t * this_plic){
unsigned long hart_id = read_csr(mhartid);
volatile plic_source * claim_addr = (volatile plic_source * )
(this_plic->base_addr +
PLIC_CLAIM_OFFSET +
(hart_id << PLIC_CLAIM_SHIFT_PER_TARGET));
(this_plic->target_hartid << PLIC_CLAIM_SHIFT_PER_TARGET));
return *claim_addr;
@ -117,10 +113,9 @@ plic_source PLIC_claim_interrupt(plic_instance_t * this_plic){
void PLIC_complete_interrupt(plic_instance_t * this_plic, plic_source source){
unsigned long hart_id = read_csr(mhartid);
volatile plic_source * claim_addr = (volatile plic_source *) (this_plic->base_addr +
PLIC_CLAIM_OFFSET +
(hart_id << PLIC_CLAIM_SHIFT_PER_TARGET));
(this_plic->target_hartid << PLIC_CLAIM_SHIFT_PER_TARGET));
*claim_addr = source;
}

5
raven/bsp/drivers/plic/plic_driver.h
View File

@ -14,7 +14,7 @@ typedef struct __plic_instance_t
uint32_t num_sources;
uint32_t num_priorities;
uint32_t target_hartid;
} plic_instance_t;
typedef uint32_t plic_source;
@ -25,7 +25,8 @@ void PLIC_init (
plic_instance_t * this_plic,
uintptr_t base_addr,
uint32_t num_sources,
uint32_t num_priorities
uint32_t num_priorities,
uint32_t target_hartid
);
void PLIC_set_threshold (plic_instance_t * this_plic,