ws2812: replace RGBLED_NUM with driver-owned constant to decouple driver from RGBLEDs/RGBMATRIX defines (#18036)
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@ -56,6 +56,12 @@
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# define WS2812_TRST_US 280
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# define WS2812_TRST_US 280
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#endif
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#endif
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#if defined(RGBLED_NUM)
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# define WS2812_LED_COUNT RGBLED_NUM
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#elif defined(RGB_MATRIX_LED_COUNT)
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# define WS2812_LED_COUNT RGB_MATRIX_LED_COUNT
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#endif
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/* User Interface
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/* User Interface
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*
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*
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* Input:
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* Input:
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@ -36,10 +36,10 @@ static int state_machine = -1;
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// clang-format off
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// clang-format off
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static const uint16_t ws2812_program_instructions[] = {
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static const uint16_t ws2812_program_instructions[] = {
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// .wrap_target
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// .wrap_target
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0x7221, // 0: out x, 1 side 1 [2]
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0x7221, // 0: out x, 1 side 1 [2]
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0x0123, // 1: jmp !x, 3 side 0 [1]
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0x0123, // 1: jmp !x, 3 side 0 [1]
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0x0400, // 2: jmp 0 side 0 [4]
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0x0400, // 2: jmp 0 side 0 [4]
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0xb442, // 3: nop side 1 [4]
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0xb442, // 3: nop side 1 [4]
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// .wrap
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// .wrap
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};
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};
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@ -62,7 +62,7 @@ static const pio_program_t ws2812_program = {
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.origin = -1,
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.origin = -1,
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};
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};
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static uint32_t WS2812_BUFFER[RGBLED_NUM];
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static uint32_t WS2812_BUFFER[WS2812_LED_COUNT];
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static const rp_dma_channel_t* WS2812_DMA_CHANNEL;
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static const rp_dma_channel_t* WS2812_DMA_CHANNEL;
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bool ws2812_init(void) {
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bool ws2812_init(void) {
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@ -154,7 +154,7 @@ static inline void sync_ws2812_transfer(void) {
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// Abort the synchronization if we have to wait longer than the total
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// Abort the synchronization if we have to wait longer than the total
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// count of LEDs in millisecounds. This is safely much longer than it
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// count of LEDs in millisecounds. This is safely much longer than it
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// would take to push all the data out.
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// would take to push all the data out.
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if (unlikely(timer_elapsed_fast(start) > RGBLED_NUM)) {
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if (unlikely(timer_elapsed_fast(start) > WS2812_LED_COUNT)) {
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dprintln("ERROR: WS2812 DMA transfer has stalled, aborting!");
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dprintln("ERROR: WS2812 DMA transfer has stalled, aborting!");
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dmaChannelDisableX(WS2812_DMA_CHANNEL);
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dmaChannelDisableX(WS2812_DMA_CHANNEL);
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return;
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return;
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@ -88,8 +88,8 @@
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*/
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*/
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#define WS2812_COLOR_BITS (WS2812_CHANNELS * 8)
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#define WS2812_COLOR_BITS (WS2812_CHANNELS * 8)
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#define WS2812_RESET_BIT_N (1000 * WS2812_TRST_US / WS2812_TIMING)
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#define WS2812_RESET_BIT_N (1000 * WS2812_TRST_US / WS2812_TIMING)
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#define WS2812_COLOR_BIT_N (RGBLED_NUM * WS2812_COLOR_BITS) /**< Number of data bits */
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#define WS2812_COLOR_BIT_N (WS2812_LED_COUNT * WS2812_COLOR_BITS) /**< Number of data bits */
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#define WS2812_BIT_N (WS2812_COLOR_BIT_N + WS2812_RESET_BIT_N) /**< Total number of bits in a frame */
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#define WS2812_BIT_N (WS2812_COLOR_BIT_N + WS2812_RESET_BIT_N) /**< Total number of bits in a frame */
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/**
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/**
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* @brief High period for a zero, in ticks
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* @brief High period for a zero, in ticks
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@ -133,7 +133,7 @@
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/**
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/**
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* @brief Determine the index in @ref ws2812_frame_buffer "the frame buffer" of a given bit
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* @brief Determine the index in @ref ws2812_frame_buffer "the frame buffer" of a given bit
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*
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*
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* @param[in] led: The led index [0, @ref RGBLED_NUM)
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* @param[in] led: The led index [0, @ref WS2812_LED_COUNT)
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* @param[in] byte: The byte number [0, 2]
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* @param[in] byte: The byte number [0, 2]
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* @param[in] bit: The bit number [0, 7]
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* @param[in] bit: The bit number [0, 7]
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*
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*
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@ -147,7 +147,7 @@
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*
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*
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* @note The red byte is the middle byte in the color packet
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* @note The red byte is the middle byte in the color packet
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*
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*
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* @param[in] led: The led index [0, @ref RGBLED_NUM)
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* @param[in] led: The led index [0, @ref WS2812_LED_COUNT)
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* @param[in] bit: The bit number [0, 7]
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* @param[in] bit: The bit number [0, 7]
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*
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*
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* @return The bit index
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* @return The bit index
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@ -159,7 +159,7 @@
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*
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*
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* @note The red byte is the first byte in the color packet
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* @note The red byte is the first byte in the color packet
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*
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*
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* @param[in] led: The led index [0, @ref RGBLED_NUM)
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* @param[in] led: The led index [0, @ref WS2812_LED_COUNT)
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* @param[in] bit: The bit number [0, 7]
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* @param[in] bit: The bit number [0, 7]
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*
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*
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* @return The bit index
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* @return The bit index
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@ -171,7 +171,7 @@
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*
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*
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* @note The red byte is the last byte in the color packet
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* @note The red byte is the last byte in the color packet
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*
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*
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* @param[in] led: The led index [0, @ref RGBLED_NUM)
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* @param[in] led: The led index [0, @ref WS2812_LED_COUNT)
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* @param[in] bit: The bit index [0, 7]
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* @param[in] bit: The bit index [0, 7]
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*
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*
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* @return The bit index
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* @return The bit index
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@ -184,7 +184,7 @@
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*
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*
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* @note The red byte is the middle byte in the color packet
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* @note The red byte is the middle byte in the color packet
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*
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*
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* @param[in] led: The led index [0, @ref RGBLED_NUM)
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* @param[in] led: The led index [0, @ref WS2812_LED_COUNT)
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* @param[in] bit: The bit number [0, 7]
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* @param[in] bit: The bit number [0, 7]
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*
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*
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* @return The bit index
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* @return The bit index
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@ -196,7 +196,7 @@
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*
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*
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* @note The red byte is the first byte in the color packet
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* @note The red byte is the first byte in the color packet
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*
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*
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* @param[in] led: The led index [0, @ref RGBLED_NUM)
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* @param[in] led: The led index [0, @ref WS2812_LED_COUNT)
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* @param[in] bit: The bit number [0, 7]
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* @param[in] bit: The bit number [0, 7]
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*
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*
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* @return The bit index
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* @return The bit index
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@ -208,7 +208,7 @@
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*
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*
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* @note The red byte is the last byte in the color packet
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* @note The red byte is the last byte in the color packet
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*
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*
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* @param[in] led: The led index [0, @ref RGBLED_NUM)
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* @param[in] led: The led index [0, @ref WS2812_LED_COUNT)
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* @param[in] bit: The bit index [0, 7]
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* @param[in] bit: The bit index [0, 7]
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*
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*
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* @return The bit index
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* @return The bit index
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@ -221,7 +221,7 @@
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*
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*
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* @note The red byte is the middle byte in the color packet
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* @note The red byte is the middle byte in the color packet
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*
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*
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* @param[in] led: The led index [0, @ref RGBLED_NUM)
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* @param[in] led: The led index [0, @ref WS2812_LED_COUNT)
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* @param[in] bit: The bit number [0, 7]
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* @param[in] bit: The bit number [0, 7]
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*
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*
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* @return The bit index
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* @return The bit index
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@ -233,7 +233,7 @@
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*
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*
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* @note The red byte is the first byte in the color packet
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* @note The red byte is the first byte in the color packet
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*
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*
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* @param[in] led: The led index [0, @ref RGBLED_NUM)
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* @param[in] led: The led index [0, @ref WS2812_LED_COUNT)
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* @param[in] bit: The bit number [0, 7]
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* @param[in] bit: The bit number [0, 7]
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*
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*
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* @return The bit index
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* @return The bit index
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@ -245,7 +245,7 @@
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*
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*
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* @note The red byte is the last byte in the color packet
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* @note The red byte is the last byte in the color packet
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*
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*
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* @param[in] led: The led index [0, @ref RGBLED_NUM)
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* @param[in] led: The led index [0, @ref WS2812_LED_COUNT)
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* @param[in] bit: The bit index [0, 7]
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* @param[in] bit: The bit index [0, 7]
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*
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*
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* @return The bit index
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* @return The bit index
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@ -80,7 +80,7 @@
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# define WS2812_CHANNELS 3
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# define WS2812_CHANNELS 3
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#endif
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#endif
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#define BYTES_FOR_LED (BYTES_FOR_LED_BYTE * WS2812_CHANNELS)
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#define BYTES_FOR_LED (BYTES_FOR_LED_BYTE * WS2812_CHANNELS)
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#define DATA_SIZE (BYTES_FOR_LED * RGBLED_NUM)
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#define DATA_SIZE (BYTES_FOR_LED * WS2812_LED_COUNT)
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#define RESET_SIZE (1000 * WS2812_TRST_US / (2 * WS2812_TIMING))
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#define RESET_SIZE (1000 * WS2812_TRST_US / (2 * WS2812_TIMING))
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#define PREAMBLE_SIZE 4
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#define PREAMBLE_SIZE 4
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