rp2040,rp23xx,rp23xx-rv: allow up to 32 PIO instructions

Previously only up to 31 PIO instructions were accepted.
But the hardware allowed 32 instructions.

Now we accept 32 instructions.

See the corresponding commit in the pico-sdk repository:

  raspberrypi/pico-sdk@6f7dc67

Signed-off-by: Lars Kruse <devel@sumpfralle.de>

Author: sumpfralle

arch/arm/src/rp2040/rp2040_pio.c

@@ -133,7 +133,7 @@ static void hw_claim_clear(uint8_t *bits, uint32_t bit_index)
 static int _pio_find_offset_for_program(uint32_t pio,
                                         const rp2040_pio_program_t *program)
 {
-  ASSERT(program->length < PIO_INSTRUCTION_COUNT);
+  ASSERT(program->length <= PIO_INSTRUCTION_COUNT);
   uint32_t used_mask = _used_instruction_space[rp2040_pio_get_index(pio)];
   uint32_t program_mask = (1u << program->length) - 1;
 

arch/arm/src/rp23xx/rp23xx_pio.c

@@ -120,7 +120,7 @@ static void hw_claim_clear(uint8_t *bits, uint32_t bit_index)
 static int _pio_find_offset_for_program(uint32_t pio,
                                         const rp23xx_pio_program_t *program)
 {
-  ASSERT(program->length < PIO_INSTRUCTION_COUNT);
+  ASSERT(program->length <= PIO_INSTRUCTION_COUNT);
   uint32_t used_mask = _used_instruction_space[rp23xx_pio_get_index(pio)];
   uint32_t program_mask = (1u << program->length) - 1;
 

arch/risc-v/src/rp23xx-rv/rp23xx_pio.c

@@ -120,7 +120,7 @@ static void hw_claim_clear(uint8_t *bits, uint32_t bit_index)
 static int _pio_find_offset_for_program(uint32_t pio,
                                         const rp23xx_pio_program_t *program)
 {
-  ASSERT(program->length < PIO_INSTRUCTION_COUNT);
+  ASSERT(program->length <= PIO_INSTRUCTION_COUNT);
   uint32_t used_mask = _used_instruction_space[rp23xx_pio_get_index(pio)];
   uint32_t program_mask = (1u << program->length) - 1;