Merge branch 'bugfix/spi_gpio0' into 'master'

fix(spi): several fixes about maros (flags) and GPIO0.

See merge request idf/esp-idf!1666

components/driver/include/driver/spi_master.h

@@ -30,7 +30,7 @@ extern "C"
 
 #define SPI_DEVICE_TXBIT_LSBFIRST          (1<<0)  ///< Transmit command/address/data LSB first instead of the default MSB first
 #define SPI_DEVICE_RXBIT_LSBFIRST          (1<<1)  ///< Receive data LSB first instead of the default MSB first
-#define SPI_DEVICE_BIT_LSBFIRST            (SPI_DEVICE_TXBIT_LSBFIRST|SPI_DEVICE_RXBIT_LSBFIRST); ///< Transmit and receive LSB first
+#define SPI_DEVICE_BIT_LSBFIRST            (SPI_DEVICE_TXBIT_LSBFIRST|SPI_DEVICE_RXBIT_LSBFIRST) ///< Transmit and receive LSB first
 #define SPI_DEVICE_3WIRE                   (1<<2)  ///< Use MOSI (=spid) for both sending and receiving data
 #define SPI_DEVICE_POSITIVE_CS             (1<<3)  ///< Make CS positive during a transaction instead of negative
 #define SPI_DEVICE_HALFDUPLEX              (1<<4)  ///< Transmit data before receiving it, instead of simultaneously
@@ -62,11 +62,11 @@ typedef struct {
 
 #define SPI_TRANS_MODE_DIO            (1<<0)  ///< Transmit/receive data in 2-bit mode
 #define SPI_TRANS_MODE_QIO            (1<<1)  ///< Transmit/receive data in 4-bit mode
-#define SPI_TRANS_MODE_DIOQIO_ADDR    (1<<4)  ///< Also transmit address in mode selected by SPI_MODE_DIO/SPI_MODE_QIO
 #define SPI_TRANS_USE_RXDATA          (1<<2)  ///< Receive into rx_data member of spi_transaction_t instead into memory at rx_buffer.
 #define SPI_TRANS_USE_TXDATA          (1<<3)  ///< Transmit tx_data member of spi_transaction_t instead of data at tx_buffer. Do not set tx_buffer when using this.
-#define SPI_TRANS_VARIABLE_CMD        (1<<4)  ///< Use the ``command_bits`` in ``spi_transaction_ext_t`` rather than default value in ``spi_device_interface_config_t``.
-#define SPI_TRANS_VARIABLE_ADDR       (1<<5)  ///< Use the ``address_bits`` in ``spi_transaction_ext_t`` rather than default value in ``spi_device_interface_config_t``.
+#define SPI_TRANS_MODE_DIOQIO_ADDR    (1<<4)  ///< Also transmit address in mode selected by SPI_MODE_DIO/SPI_MODE_QIO
+#define SPI_TRANS_VARIABLE_CMD        (1<<5)  ///< Use the ``command_bits`` in ``spi_transaction_ext_t`` rather than default value in ``spi_device_interface_config_t``.
+#define SPI_TRANS_VARIABLE_ADDR       (1<<6)  ///< Use the ``address_bits`` in ``spi_transaction_ext_t`` rather than default value in ``spi_device_interface_config_t``.
 
 /**
  * This structure describes one SPI transaction. The descriptor should not be modified until the transaction finishes.

components/driver/include/driver/spi_slave.h

@@ -30,7 +30,7 @@ extern "C"
 
 #define SPI_SLAVE_TXBIT_LSBFIRST          (1<<0)  ///< Transmit command/address/data LSB first instead of the default MSB first
 #define SPI_SLAVE_RXBIT_LSBFIRST          (1<<1)  ///< Receive data LSB first instead of the default MSB first
-#define SPI_SLAVE_BIT_LSBFIRST            (SPI_TXBIT_LSBFIRST|SPI_RXBIT_LSBFIRST); ///< Transmit and receive LSB first
+#define SPI_SLAVE_BIT_LSBFIRST            (SPI_SLAVE_TXBIT_LSBFIRST|SPI_SLAVE_RXBIT_LSBFIRST) ///< Transmit and receive LSB first
 
 
 typedef struct spi_slave_transaction_t spi_slave_transaction_t;
@@ -163,4 +163,4 @@ esp_err_t spi_slave_transmit(spi_host_device_t host, spi_slave_transaction_t *tr
 }
 #endif
 
-#endif
+#endif

components/driver/spi_common.c

@@ -255,38 +255,38 @@ esp_err_t spicommon_bus_initialize_io(spi_host_device_t host, const spi_bus_conf
     if (native) {
         //All SPI native pin selections resolve to 1, so we put that here instead of trying to figure
         //out which FUNC_GPIOx_xSPIxx to grab; they all are defined to 1 anyway.
-        if (bus_config->mosi_io_num > 0) PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->mosi_io_num], 1);
-        if (bus_config->miso_io_num > 0) PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->miso_io_num], 1);
-        if (use_quad && bus_config->quadwp_io_num > 0) PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->quadwp_io_num], 1);
-        if (use_quad && bus_config->quadhd_io_num > 0) PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->quadhd_io_num], 1);
-        if (bus_config->sclk_io_num > 0) PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->sclk_io_num], 1);
+        if (bus_config->mosi_io_num >= 0) PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->mosi_io_num], 1);
+        if (bus_config->miso_io_num >= 0) PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->miso_io_num], 1);
+        if (use_quad && bus_config->quadwp_io_num >= 0) PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->quadwp_io_num], 1);
+        if (use_quad && bus_config->quadhd_io_num >= 0) PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->quadhd_io_num], 1);
+        if (bus_config->sclk_io_num >= 0) PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->sclk_io_num], 1);
     } else {
         //Use GPIO
-        if (bus_config->mosi_io_num > 0) {
+        if (bus_config->mosi_io_num >= 0) {
             PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->mosi_io_num], PIN_FUNC_GPIO);
             gpio_set_direction(bus_config->mosi_io_num, GPIO_MODE_INPUT_OUTPUT);
             gpio_matrix_out(bus_config->mosi_io_num, io_signal[host].spid_out, false, false);
             gpio_matrix_in(bus_config->mosi_io_num, io_signal[host].spid_in, false);
         }
-        if (bus_config->miso_io_num > 0) {
+        if (bus_config->miso_io_num >= 0) {
             PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->miso_io_num], PIN_FUNC_GPIO);
             gpio_set_direction(bus_config->miso_io_num, GPIO_MODE_INPUT_OUTPUT);
             gpio_matrix_out(bus_config->miso_io_num, io_signal[host].spiq_out, false, false);
             gpio_matrix_in(bus_config->miso_io_num, io_signal[host].spiq_in, false);
         }
-        if (use_quad && bus_config->quadwp_io_num > 0) {
+        if (use_quad && bus_config->quadwp_io_num >= 0) {
             PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->quadwp_io_num], PIN_FUNC_GPIO);
             gpio_set_direction(bus_config->quadwp_io_num, GPIO_MODE_INPUT_OUTPUT);
             gpio_matrix_out(bus_config->quadwp_io_num, io_signal[host].spiwp_out, false, false);
             gpio_matrix_in(bus_config->quadwp_io_num, io_signal[host].spiwp_in, false);
         }
-        if (use_quad && bus_config->quadhd_io_num > 0) {
+        if (use_quad && bus_config->quadhd_io_num >= 0) {
             PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->quadhd_io_num], PIN_FUNC_GPIO);
             gpio_set_direction(bus_config->quadhd_io_num, GPIO_MODE_INPUT_OUTPUT);
             gpio_matrix_out(bus_config->quadhd_io_num, io_signal[host].spihd_out, false, false);
             gpio_matrix_in(bus_config->quadhd_io_num, io_signal[host].spihd_in, false);
         }
-        if (bus_config->sclk_io_num > 0) {
+        if (bus_config->sclk_io_num >= 0) {
             PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[bus_config->sclk_io_num], PIN_FUNC_GPIO);
             gpio_set_direction(bus_config->sclk_io_num, GPIO_MODE_INPUT_OUTPUT);
             gpio_matrix_out(bus_config->sclk_io_num, io_signal[host].spiclk_out, false, false);