Rnamed PIO assembly program from duplex_slave_i2s to i2s_slave_duplex.

Following the rename of C++ classes.

Author: suikan4github

src/i2s/CMakeLists.txt

@@ -8,5 +8,5 @@ target_include_directories(rpp_driver INTERFACE .)
 # Bare metal specific declaration. 
 if(NOT (${WIN32}) AND NOT(${UNIX})) # Is Target bare metal? 
         # Generate PIO program. 
-        pico_generate_pio_header(rpp_driver ${CMAKE_CURRENT_LIST_DIR}/duplex_slave_i2s.pio)
+        pico_generate_pio_header(rpp_driver ${CMAKE_CURRENT_LIST_DIR}/i2s_slave_duplex.pio)
 endif()

src/i2s/duplex_slave_i2s.pio

@@ -31,7 +31,7 @@
 
 .pio_version 0              ; only requires PIO version 0
 
-.program duplex_slave_i2s   ; Program entry point. 
+.program i2s_slave_duplex   ; Program entry point. 
 
                             ; The following 3 loops avoid the trouble from the timing problem. 
                             ; The beginning of the PIO state machine program is not synchronized

src/i2s/duplexslavei2s.cpp

@@ -4,10 +4,10 @@
 
 #if __has_include(<hardware/pio.h>)  // Is build in Pico Environment?
 extern "C" {
-#include "duplex_slave_i2s.pio.h"  // Generated by PIO compiler.
+#include "i2s_slave_duplex.pio.h"  // Generated by PIO compiler.
 }
 #else
-static pio_program_t duplex_slave_i2s_program;
+static pio_program_t i2s_slave_duplex_program;
 #endif  // __has_include(<hardware/pio.h>)
 
 rpp_driver::I2sSlaveDuplex::I2sSlaveDuplex(::rpp_driver::SdkWrapper &sdk,
@@ -57,13 +57,13 @@ void rpp_driver::I2sSlaveDuplex::Start() {
 
   // Load the PIO program to the memory.
   uint instruction_offset =
-      sdk_.pio_add_program(pio_, &duplex_slave_i2s_program);
+      sdk_.pio_add_program(pio_, &i2s_slave_duplex_program);
 
   // Create a state machine configuration structure.
   // The duplex_i2s_program_get_default_config() is generated by the
   // PIO compiler. So, there is no wrapper.
   pio_sm_config config =
-      duplex_slave_i2s_program_get_default_config(instruction_offset);
+      i2s_slave_duplex_program_get_default_config(instruction_offset);
 
   // Assign GPIO pins to IN/OUT/JMP instructions inside SM.
   sdk_.sm_config_set_out_pins(&config,

src/i2s/duplexslavei2s.hpp

@@ -5,7 +5,7 @@
 #include "hardware/pio.h"
 #else
 // Alternate definition for unit test.
-#define duplex_slave_i2s_program_get_default_config(config) 1
+#define i2s_slave_duplex_program_get_default_config(config) 1
 #define clk_sys 51
 #endif  //__has_include(<hardware/i2c.h>)