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Small API additions and minor fixes (#406)

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* Add missing DREQ_s

* store actual clock frequency in clock_configure (fixes #368)

* use dma DREQ values defined in dreqs/dma.h

* Fix hw_is_claimed, and add xxx_is_claimed APIs

* Add some PIO irq helper methods

* Add DMA channel IRQ status getter and clear methods

* Implement the correct PIO IRQ status/clear methods (good to have methods here as the h/w interrupt registers are super confusing)

* fix pico_multicore dependencies

* add missing wrapper func __aeabi_f2d

* Further DMA/PIO IRQ API cleanup (and review fixes)

* add PICO_INT64_OPS_IN_RAM flag
This commit is contained in:
Graham Sanderson
2021-06-02 13:12:27 -05:00
committed by GitHub
parent 91e9327ff1
commit 5afa3636d6
21 changed files with 368 additions and 36 deletions
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19
src/rp2_common/hardware_claim/claim.c
View File

@ -14,22 +14,13 @@ void hw_claim_unlock(uint32_t save) {
spin_unlock(spin_lock_instance(PICO_SPINLOCK_ID_HARDWARE_CLAIM), save);
}
bool hw_is_claimed(uint8_t *bits, uint bit_index) {
bool rc;
uint32_t save = hw_claim_lock();
if (bits[bit_index >> 3u] & (1u << (bit_index & 7u))) {
rc = false;
} else {
bits[bit_index >> 3u] |= (uint8_t)(1u << (bit_index & 7u));
rc = true;
}
hw_claim_unlock(save);
return rc;
inline bool hw_is_claimed(const uint8_t *bits, uint bit_index) {
return (bits[bit_index >> 3u] & (1u << (bit_index & 7u)));
}
void hw_claim_or_assert(uint8_t *bits, uint bit_index, const char *message) {
uint32_t save = hw_claim_lock();
if (bits[bit_index >> 3u] & (1u << (bit_index & 7u))) {
if (hw_is_claimed(bits, bit_index)) {
panic(message, bit_index);
} else {
bits[bit_index >> 3u] |= (uint8_t)(1u << (bit_index & 7u));
@ -42,7 +33,7 @@ int hw_claim_unused_from_range(uint8_t *bits, bool required, uint bit_lsb, uint
uint32_t save = hw_claim_lock();
int found_bit = -1;
for(uint bit=bit_lsb; bit <= bit_msb; bit++) {
if (!(bits[bit >> 3u] & (1u << (bit & 7u)))) {
if (!hw_is_claimed(bits, bit)) {
bits[bit >> 3u] |= (uint8_t)(1u << (bit & 7u));
found_bit = (int)bit;
break;
@ -57,7 +48,7 @@ int hw_claim_unused_from_range(uint8_t *bits, bool required, uint bit_lsb, uint
void hw_claim_clear(uint8_t *bits, uint bit_index) {
uint32_t save = hw_claim_lock();
assert(bits[bit_index >> 3u] & (1u << (bit_index & 7u)));
assert(hw_is_claimed(bits, bit_index));
bits[bit_index >> 3u] &= (uint8_t) ~(1u << (bit_index & 7u));
hw_claim_unlock(save);
}

4
src/rp2_common/hardware_claim/include/hardware/claim.h
View File

@ -65,10 +65,10 @@ int hw_claim_unused_from_range(uint8_t *bits, bool required, uint bit_lsb, uint
* The resource ownership is indicated by the bit_index bit in an array of bits.
*
* \param bits pointer to an array of bits (8 bits per byte)
* \param bit_index resource to unclaim (bit index into array of bits)
* \param bit_index resource to check (bit index into array of bits)
* \return true if the resource is claimed
*/
bool hw_is_claimed(uint8_t *bits, uint bit_index);
bool hw_is_claimed(const uint8_t *bits, uint bit_index);
/*! \brief Atomically unclaim a resource
* \ingroup hardware_claim