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##=============================================================================
##
##      spi_stm32.cdl
##
##      STM32 SPI driver configuration options.
##
##=============================================================================
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##=============================================================================
#######DESCRIPTIONBEGIN####
##
## Author(s):   Chris Holgate
## Contributor: jld
## Date:        2008-11-27
## Purpose:     Configure STM32 SPI driver.
##
######DESCRIPTIONEND####
##
##=============================================================================

cdl_package CYGPKG_DEVS_SPI_CORTEXM_STM32 {
    display       "ST STM32 SPI driver"
    description   "
        This package provides SPI driver support for the ST STM32 series
        of microcontrollers.
    "
    parent        CYGPKG_IO_SPI
    active_if     CYGPKG_IO_SPI
    requires      CYGPKG_HAL_CORTEXM_STM32 
    hardware
    include_dir   cyg/io
    compile       spi_stm32.c

cdl_option CYGNUM_DEVS_SPI_CORTEXM_STM32_PIN_TOGGLE_RATE {
    display       "Pin toggle rate"
    description   "
        Selects the pin toggle rate in MHz to be used for the SPI interfaces.  Higher toggle
        rates allow increased baud rates at the expense of power and EMI.
    "
    flavor        data
    default_value { 2 }
    legal_values  { 2 10 50 }
}

cdl_component CYGHWR_DEVS_SPI_CORTEXM_STM32_BUS1 {
    display       "ST STM32 SPI bus 1"
    description   "
        Enable SPI bus 1 on the STM32 device.
    "
    flavor        bool
    default_value false

    cdl_option CYGHWR_DEVS_SPI_CORTEXM_STM32_BUS1_CS_GPIOS {
        display       "SPI chip selects"
        description   "
            This is a comma separated list of GPIOs which are to be used as chip
            select lines for the SPI bus.  For the purposes of specifying
            which GPIOs to use, they are numbered consecutively from 0 (A0)
            through 16 (B0) to 111 (G15).
        "
        flavor        data
        default_value { "4" }
    }

    cdl_option CYGNUM_DEVS_SPI_CORTEXM_STM32_BUS1_BBUF_SIZE {
        display       "Bounce buffer size"
        description   "
            DMA bounce buffers are required when running out of external
            memory.  Set this to the maximum SPI packet size which will be
            used to enable the DMA bounce buffers.  Set to 0 to disable
            bounce buffers when running from on-chip memory.
        "
        flavor        data 
        default_value 0
    }

    cdl_option CYGNUM_DEVS_SPI_CORTEXM_STM32_BUS1_TXINTR_PRI {
        display       "Transmit DMA interrupt priority"
        flavor        data
        default_value 5
    }

    cdl_option CYGNUM_DEVS_SPI_CORTEXM_STM32_BUS1_RXINTR_PRI {
        display       "Receive DMA interrupt priority"
        flavor        data
        default_value 6
    }
}

cdl_component CYGHWR_DEVS_SPI_CORTEXM_STM32_BUS2 {
    display       "ST STM32 SPI bus 2"
    description   "
        Enable SPI bus 2 on the STM32 device.
    "
    flavor        bool
    default_value false

    cdl_option CYGHWR_DEVS_SPI_CORTEXM_STM32_BUS2_CS_GPIOS {
        display       "SPI chip selects"
        description   "
            This is a comma separated list of GPIOs which are to be used as chip
            select lines for the SPI bus.  For the purposes of specifying
            which GPIOs to use, they are numbered consecutively from 0 (A0)
            through 16 (B0) to 111 (G15).
        "
        flavor        data
        default_value { "28" }
    }

    cdl_option CYGNUM_DEVS_SPI_CORTEXM_STM32_BUS2_BBUF_SIZE {
        display       "Bounce buffer size"
        description   "
            DMA bounce buffers are required when running out of external
            memory.  Set this to the maximum SPI packet size which will be
            used to enable the DMA bounce buffers.  Set to 0 to disable
            bounce buffers when running from on-chip memory.
        "
        flavor        data 
        default_value 0
    }

    cdl_option CYGNUM_DEVS_SPI_CORTEXM_STM32_BUS2_TXINTR_PRI {
        display       "Transmit DMA interrupt priority"
        flavor        data
        default_value 7
    }

    cdl_option CYGNUM_DEVS_SPI_CORTEXM_STM32_BUS2_RXINTR_PRI {
        display       "Receive DMA interrupt priority"
        flavor        data
        default_value 8
    }
}

cdl_component CYGHWR_DEVS_SPI_CORTEXM_STM32_BUS3 {
    display       "ST STM32 SPI bus 3"
    description   "
        Enable SPI bus 3 on the STM32 device.  Note that SPI bus 3 shares pins
        with the JTAG port which means that debug should ideally be disabled 
        on startup.  However, there is also the option of disabling it during 
        SPI bus initialisation instead.
    "
    flavor        bool
    default_value false

    cdl_option CYGHWR_DEVS_SPI_CORTEXM_STM32_BUS3_DISABLE_DEBUG_PORT {
        display       "Disable debug port"
        description   "
            When set the debug port will automatically be disabled on 
            initialising SPI bus 3, freeing up the SPI interface pins.
        "
        flavor        bool
        default_value false
    }

    cdl_option CYGHWR_DEVS_SPI_CORTEXM_STM32_BUS3_CS_GPIOS {
        display       "SPI chip selects"
        description   "
            This is a comma separated list of GPIOs which are to be used as chip
            select lines for the SPI bus.  For the purposes of specifying
            which GPIOs to use, they are numbered consecutively from 0 (A0)
            through 16 (B0) to 111 (G15).
        "
        flavor        data
        default_value { "15" }
    }

    cdl_option CYGNUM_DEVS_SPI_CORTEXM_STM32_BUS3_BBUF_SIZE {
        display       "Bounce buffer size"
        description   "
            DMA bounce buffers are required when running out of external
            memory.  Set this to the maximum SPI packet size which will be
            used to enable the DMA bounce buffers.  Set to 0 to disable
            bounce buffers when running from on-chip memory.
        "
        flavor        data 
        default_value 0
    }

    cdl_option CYGNUM_DEVS_SPI_CORTEXM_STM32_BUS3_TXINTR_PRI {
        display       "Transmit DMA interrupt priority"
        flavor        data
        default_value 9
    }

    cdl_option CYGNUM_DEVS_SPI_CORTEXM_STM32_BUS3_RXINTR_PRI {
        display       "Receive DMA interrupt priority"
        flavor        data
        default_value 10
    }
}

cdl_component CYGPKG_DEVS_SPI_CORTEXM_STM32_OPTIONS {
    display "ST STM32 SPI driver build options"
    flavor  none
    description   "
        Package specific build options including control over
        compiler flags used only in building this package,
        and details of which tests are built."

    cdl_option CYGPKG_DEVS_SPI_CORTEXM_STM32_CFLAGS_ADD {
        display "Additional compiler flags"
        flavor  data
        no_define
        default_value { "" }
        description   "
            This option modifies the set of compiler flags for
            building the STM32 SPI driver. These flags are used in addition
            to the set of global flags."
    }

    cdl_option CYGPKG_DEVS_SPI_CORTEXM_STM32_CFLAGS_REMOVE {
        display "Suppressed compiler flags"
        flavor  data
        no_define
        default_value { "" }
        description   "
            This option modifies the set of compiler flags for
            building the STM32 SPI driver. These flags are removed from
            the set of global flags if present."
    }

    cdl_option CYGBLD_DEVS_SPI_CORTEXM_STM32_LOOPBACK_TEST {
        display       "Build STM32 SPI loopback test"
        flavor        bool
        no_define
        default_value 0
        requires      CYGHWR_DEVS_SPI_CORTEXM_STM32_BUS1
        description   "
            This option enables the building of the STM32 SPI loopback test.
            Refer to the comments in tests/loopback.c for details of how to
            use this test."
    }

    cdl_option CYGPKG_DEVS_SPI_CORTEXM_STM32_TESTS {
        display         "STM32 SPI tests"
        flavor          data
        no_define
        calculated      { CYGBLD_DEVS_SPI_CORTEXM_STM32_LOOPBACK_TEST ? "tests/loopback" : "" } 
    }
}

}
# EOF spi_stm32.cdl