SAMV7 MCAN Driver. Initial commit is just the SAMA5 CAN driver with naming changes. It should not even compile yet
This commit is contained in:
Gregory Nutt
parent
ee72304b25
commit
1638d61389
@ -65,7 +65,7 @@ config ARCH_CHIP_SAMV71Q
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bool
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default n
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select ARCH_CHIP_SAMV71
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select SAMV7_HAVE_CAN1
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select SAMV7_HAVE_MCAN1
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select SAMV7_HAVE_DAC1
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select SAMV7_HAVE_EBI
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select SAMV7_HAVE_HSMCI0
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@ -82,7 +82,7 @@ config ARCH_CHIP_SAMV71N
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bool
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default n
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select ARCH_CHIP_SAMV71
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select SAMV7_HAVE_CAN1
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select SAMV7_HAVE_MCAN1
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select SAMV7_HAVE_DAC1
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select SAMV7_HAVE_HSMCI0
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select SAMV7_HAVE_SPI0
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@ -102,7 +102,11 @@ config ARCH_CHIP_SAMV71J
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# Chip Capabilities
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config SAMV7_HAVE_CAN1
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config SAMV7_MCAN
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bool
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default n
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config SAMV7_HAVE_MCAN1
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bool
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default n
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@ -207,14 +211,18 @@ config SAMV7_AFEC1
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bool "Analog Front End 1 (AFEC1)"
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default n
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config SAMV7_CAN0
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bool "CAN0"
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config SAMV7_MCAN0
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bool "CAN controller 0 (MCAN0)"
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default n
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select CAN
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select SAMV7_MCAN
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config SAMV7_CAN1
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bool "CAN1"
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config SAMV7_MCAN1
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bool "CAN controller 1 (MCAN1)"
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default n
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depends on SAMV7_HAVE_CAN1
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depends on SAMV7_HAVE_MCAN1
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select CAN
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select SAMV7_MCAN
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config SAMV7_DAC0
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bool "Digital To Analog Converter 0 (DAC0)"
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@ -1296,3 +1304,214 @@ config SAMV7_USBHS_REGDEBUG
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depends on DEBUG
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endmenu # USB High Speed Device Controller driver (DCD) options
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if SAMV7_MCAN
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menu "MCAN device driver options"
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if SAMV7_MCAN0
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config SAMV7_MCAN0_BAUD
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int "CAN0 BAUD"
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default 250000
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depends on SAMV7_MCAN0
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---help---
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CAN0 BAUD rate. Required if SAMV7_MCAN0 is defined.
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config SAMV7_MCAN0_NRECVMB
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int "Number of receive mailboxes"
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default 1
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range 1 3
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---help---
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The SAMV7 CAN0 peripheral supports 8 mailboxes that can be used for
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sending and receiving messages. Up the three of these can be set
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aside statically for message reception. The remainder can be
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configured dynamically to send CAN messages. Multiple receive
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mailboxes might needed to either (1) receive bursts of messages, or
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(2) to support multiple groups of messages filtered on message ID.
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NOTE: The maximum of 3 is a completely arbitrary design decision
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and can certainly be changed if you need more.
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config SAMV7_MCAN0_ADDR0
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hex "Mailbox 0 address"
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---help---
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This setting defines the address for receive mailbox 0. If CAN_EXTID
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is defined, this should be a 29-bit extended CAN address; otherwise
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it should be an 11-bit standard CAN address.
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config SAMV7_MCAN0_MASK0
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hex "Mailbox 0 address mask"
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default 0x7fff if !CAN_EXTID
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default 0x1fffffff if CAN_EXTID
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---help---
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This setting defines the address mask for receive mailbox 0. And
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address matching SAMV7_MCAN0_ADDR0 under this mask are accepted. The
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default, all ones, forces an exact match. A value of zero will accept
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any address.
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If CAN_EXTID is defined, this should be a 29-bit extended CAN address
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mask; otherwise it should be an 11-bit standard CAN address.
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config SAMV7_MCAN0_ADDR1
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hex "Mailbox 1 address"
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---help---
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This setting defines the address for receive mailbox 1. If CAN_EXTID
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is defined, this should be a 29-bit extended CAN address; otherwise
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it should be an 11-bit standard CAN address.
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This setting is ignored if SAMV7_MCAN0_NRECVMB is less than 2.
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config SAMV7_MCAN0_MASK1
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hex "Mailbox 1 address mask"
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default 0x7fff if !CAN_EXTID
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default 0x1fffffff if CAN_EXTID
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---help---
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This setting defines the address mask for receive mailbox 1. And
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address matching SAMV7_MCAN0_ADDR1 under this mask are accepted. The
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default, all ones, forces an exact match. A value of zero will accept
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any address.
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If CAN_EXTID is defined, this should be a 29-bit extended CAN address
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mask; otherwise it should be an 11-bit standard CAN address.
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This setting is ignored if SAMV7_MCAN0_NRECVMB is less than 2.
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config SAMV7_MCAN0_ADDR2
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hex "Mailbox 2 address"
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---help---
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This setting defines the address for receive mailbox 2. If CAN_EXTID
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is defined, this should be a 29-bit extended CAN address; otherwise
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it should be an 11-bit standard CAN address.
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This setting is ignored if SAMV7_MCAN0_NRECVMB is less than 3.
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config SAMV7_MCAN0_MASK2
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hex "Mailbox 1 address mask"
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default 0x7fff if !CAN_EXTID
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default 0x1fffffff if CAN_EXTID
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---help---
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This setting defines the address mask for receive mailbox 2. And
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address matching SAMV7_MCAN0_ADDR2 under this mask are accepted. The
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default, all ones, forces an exact match. A value of zero will accept
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any address.
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If CAN_EXTID is defined, this should be a 29-bit extended CAN address
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mask; otherwise it should be an 11-bit standard CAN address.
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This setting is ignored if SAMV7_MCAN0_NRECVMB is less than 2.
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endif # SAMV7_MCAN0
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if SAMV7_MCAN1
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config SAMV7_MCAN1_BAUD
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int "CAN1 BAUD"
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default 250000
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depends on SAMV7_MCAN1
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---help---
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CAN1 BAUD rate. Required if SAMV7_MCAN1 is defined.
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config SAMV7_MCAN1_NRECVMB
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int "Number of receive mailboxes"
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default 1
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range 1 3
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---help---
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The SAMV7 CAN1 peripheral supports 8 mailboxes that can be used for
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sending and receiving messages. Up the three of these can be set
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aside statically for message reception. The remainder can be
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configured dynamically to send CAN messages. Multiple receive
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mailboxes might needed to either (1) receive bursts of messages, or
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(2) to support multiple groups of messages filtered on message ID.
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NOTE: The maximum of 3 is a completely arbitrary design decision
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and can certainly be changed if you need more.
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config SAMV7_MCAN1_ADDR0
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hex "Mailbox 0 address"
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---help---
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This setting defines the address for receive mailbox 0. If CAN_EXTID
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is defined, this should be a 29-bit extended CAN address; otherwise
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it should be an 11-bit standard CAN address.
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config SAMV7_MCAN1_MASK0
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hex "Mailbox 0 address mask"
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default 0x7fff if !CAN_EXTID
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default 0x1fffffff if CAN_EXTID
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---help---
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This setting defines the address mask for receive mailbox 0. And
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address matching SAMV7_MCAN1_ADDR0 under this mask are accepted. The
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default, all ones, forces an exact match. A value of zero will accept
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any address.
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If CAN_EXTID is defined, this should be a 29-bit extended CAN address
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mask; otherwise it should be an 11-bit standard CAN address.
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config SAMV7_MCAN1_ADDR1
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hex "Mailbox 1 address"
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---help---
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This setting defines the address for receive mailbox 1. If CAN_EXTID
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is defined, this should be a 29-bit extended CAN address; otherwise
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it should be an 11-bit standard CAN address.
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This setting is ignored if SAMV7_MCAN0_NRECVMB is less than 2.
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config SAMV7_MCAN1_MASK1
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hex "Mailbox 1 address mask"
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default 0x7fff if !CAN_EXTID
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default 0x1fffffff if CAN_EXTID
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---help---
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This setting defines the address mask for receive mailbox 1. And
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address matching SAMV7_MCAN1_ADDR1 under this mask are accepted. The
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default, all ones, forces an exact match. A value of zero will accept
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any address.
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If CAN_EXTID is defined, this should be a 29-bit extended CAN address
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mask; otherwise it should be an 11-bit standard CAN address.
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This setting is ignored if SAMV7_MCAN1_NRECVMB is less than 2.
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config SAMV7_MCAN1_ADDR2
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hex "Mailbox 2 address"
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---help---
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This setting defines the address for receive mailbox 2. If CAN_EXTID
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is defined, this should be a 29-bit extended CAN address; otherwise
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it should be an 11-bit standard CAN address.
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This setting is ignored if SAMV7_MCAN1_NRECVMB is less than 3.
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config SAMV7_MCAN1_MASK2
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hex "Mailbox 2 address mask"
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default 0x7fff if !CAN_EXTID
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default 0x1fffffff if CAN_EXTID
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---help---
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This setting defines the address mask for receive mailbox 2. And
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address matching SAMV7_MCAN1_ADDR2 under this mask are accepted. The
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default, all ones, forces an exact match. A value of zero will accept
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any address.
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If CAN_EXTID is defined, this should be a 29-bit extended CAN address
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mask; otherwise it should be an 11-bit standard CAN address.
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This setting is ignored if SAMV7_MCAN1_NRECVMB is less than 3.
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endif # SAMV7_MCAN1
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config SAMV7_MCAN_AUTOBAUD
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bool "Enable auto-baud"
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default n
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depends on EXPERIMENTAL
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---help---
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Enable the SAMV7 auto-baud feature. NOTE: This feature is not yet
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fully implemented.
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config SAMV7_MCAN_REGDEBUG
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bool "CAN Register level debug"
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depends on DEBUG
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default n
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---help---
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Output detailed register-level CAN device debug information.
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Requires also DEBUG.
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endmenu # CAN device driver options
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endif # SAMV7_MCAN
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@ -150,6 +150,10 @@ ifeq ($(CONFIG_SAMV7_EMAC),y)
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CHIP_CSRCS += sam_emac.c sam_ethernet.c
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endif
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ifeq ($(CONFIG_SAMV7_MCAN),y)
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CHIP_CSRCS += sam_mcan.c
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endif
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ifeq ($(CONFIG_SAMV7_USBDEVHS),y)
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CHIP_CSRCS += sam_usbdevhs.c
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endif
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2011
arch/arm/src/samv7/sam_mcan.c
Normal file
2011
arch/arm/src/samv7/sam_mcan.c
Normal file
File diff suppressed because it is too large
Load Diff
153
arch/arm/src/samv7/sam_mcan.h
Normal file
153
arch/arm/src/samv7/sam_mcan.h
Normal file
@ -0,0 +1,153 @@
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/****************************************************************************
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* arch/arm/src/samv7/sam_mcan.h
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_SAMV7_SAM_MCAN_H
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#define __ARCH_ARM_SRC_SAMV7_SAM_MCAN_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include "chip.h"
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#include "chip/sam_mcan.h"
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#include <nuttx/can.h>
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#if defined(CONFIG_CAN) && (defined(CONFIG_SAMV7_CAN0) || \
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defined(CONFIG_SAMV7_CAN1))
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/* CAN BAUD */
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#if defined(CONFIG_SAMV7_CAN0) && !defined(CONFIG_SAMV7_CAN0_BAUD)
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# error "CONFIG_SAMV7_CAN0_BAUD is not defined"
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#endif
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#if defined(CONFIG_SAMV7_CAN1) && !defined(CONFIG_SAMV7_CAN1_BAUD)
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# error "CONFIG_SAMV7_CAN1_BAUD is not defined"
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#endif
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/* There must be at least one but not more than three receive mailboxes */
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#ifdef CONFIG_SAMV7_CAN0
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# if !defined(CONFIG_SAMV7_CAN0_NRECVMB) || CONFIG_SAMV7_CAN0_NRECVMB < 1
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# undef CONFIG_SAMV7_CAN0_NRECVMB
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# define CONFIG_SAMV7_CAN0_NRECVMB 1
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# endif
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# if CONFIG_SAMV7_CAN0_NRECVMB > 3
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# warning Current implementation only supports up to three receive mailboxes
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# undef CONFIG_SAMV7_CAN0_NRECVMB
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# define CONFIG_SAMV7_CAN0_NRECVMB 3
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# endif
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#else
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# undef CONFIG_SAMV7_CAN0_NRECVMB
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# define CONFIG_SAMV7_CAN0_NRECVMB 0
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#endif
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#ifdef CONFIG_SAMV7_CAN1
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# if !defined(CONFIG_SAMV7_CAN1_NRECVMB) || CONFIG_SAMV7_CAN1_NRECVMB < 1
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# undef CONFIG_SAMV7_CAN1_NRECVMB
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# define CONFIG_SAMV7_CAN1_NRECVMB 1
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# endif
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# if CONFIG_SAMV7_CAN1_NRECVMB > 3
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# warning Current implementation only supports up to three receive mailboxes
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# undef CONFIG_SAMV7_CAN1_NRECVMB
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# define CONFIG_SAMV7_CAN1_NRECVMB 3
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# endif
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#else
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# undef CONFIG_SAMV7_CAN1_NRECVMB
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# define CONFIG_SAMV7_CAN1_NRECVMB 0
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#endif
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/* Port numbers for use with sam_mcan_initialize() */
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#define MCAN0 0
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#define MCAN1 1
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/***************************************************************************
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* Public Types
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***************************************************************************/
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#ifndef __ASSEMBLY__
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/***************************************************************************
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* Public Functions
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***************************************************************************/
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/****************************************************************************
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* Name: sam_mcan_initialize
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*
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* Description:
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* Initialize the selected MCAN port
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*
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* Input Parameter:
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* port - Port number (for hardware that has multiple CAN interfaces),
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* 0=MCAN0, 1=NCAN1
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*
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* Returned Value:
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* Valid CAN device structure reference on success; a NULL on failure
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*
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****************************************************************************/
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struct can_dev_s;
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FAR struct can_dev_s *sam_mcan_initialize(int port);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_CAN && (CONFIG_SAMV7_CAN0 || CONFIG_SAMV7_CAN1) */
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#endif /* __ARCH_ARM_SRC_SAMV7_SAM_MCAN_H */
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