Contiki 3.x
Macros | Functions
udma.h File Reference
cc2538 micro-DMA

Header file with register, macro and function declarations for the cc2538 micro-DMA controller module. More...

#include "contiki-conf.h"

Go to the source code of this file.

Macros

#define udma_xfer_size(len)   ((len - 1) << 4)
 Calculate the value of the xfersize field in the control structure. More...
 
uDMA Register offset declarations
#define UDMA_STAT   0x400FF000
 DMA status.
 
#define UDMA_CFG   0x400FF004
 DMA configuration.
 
#define UDMA_CTLBASE   0x400FF008
 DMA channel control base pointer.
 
#define UDMA_ALTBASE   0x400FF00C
 DMA alternate channel control base pointer.
 
#define UDMA_WAITSTAT   0x400FF010
 DMA channel wait-on-request status.
 
#define UDMA_SWREQ   0x400FF014
 DMA channel software request.
 
#define UDMA_USEBURSTSET   0x400FF018
 DMA channel useburst set.
 
#define UDMA_USEBURSTCLR   0x400FF01C
 DMA channel useburst clear.
 
#define UDMA_REQMASKSET   0x400FF020
 DMA channel request mask set.
 
#define UDMA_REQMASKCLR   0x400FF024
 DMA channel request mask clear.
 
#define UDMA_ENASET   0x400FF028
 DMA channel enable set.
 
#define UDMA_ENACLR   0x400FF02C
 DMA channel enable clear.
 
#define UDMA_ALTSET   0x400FF030
 DMA channel primary alternate set.
 
#define UDMA_ALTCLR   0x400FF034
 DMA channel primary alternate clear.
 
#define UDMA_PRIOSET   0x400FF038
 DMA channel priority set.
 
#define UDMA_PRIOCLR   0x400FF03C
 DMA channel priority clear.
 
#define UDMA_ERRCLR   0x400FF04C
 DMA bus error clear.
 
#define UDMA_CHASGN   0x400FF500
 DMA channel assignment.
 
#define UDMA_CHIS   0x400FF504
 DMA channel interrupt status.
 
#define UDMA_CHMAP0   0x400FF510
 DMA channel map select 0.
 
#define UDMA_CHMAP1   0x400FF514
 DMA channel map select 1.
 
#define UDMA_CHMAP2   0x400FF518
 DMA channel map select 2.
 
#define UDMA_CHMAP3   0x400FF51C
 DMA channel map select 3.
 
UDMA_STAT register bit masks
#define UDMA_STAT_DMACHANS   0x001F0000
 Available uDMA channels minus 1.
 
#define UDMA_STAT_STATE   0x000000F0
 Control state machine status.
 
#define UDMA_STAT_MASTEN   0x00000001
 Master enable status.
 
UDMA_CFG register bit masks
#define UDMA_CFG_MASTEN   0x00000001
 Controller master enable.
 
UDMA_CTLBASE register bit masks
#define UDMA_CTLBASE_ADDR   0xFFFFFC00
 Channel control base address.
 
UDMA_ALTBASE register bit masks
#define UDMA_ALTBASE_ADDR   0xFFFFFFFF
 Alternate channel address pointer.
 
UDMA_WAITSTAT register bit masks
#define UDMA_WAITSTAT_WAITREQ   0xFFFFFFFF
 Channel [n] wait status.
 
UDMA_SWREQ register bit masks
#define UDMA_SWREQ_SWREQ   0xFFFFFFFF
 Channel [n] software request.
 
UDMA_USEBURSTSET register bit masks
#define UDMA_USEBURSTSET_SET   0xFFFFFFFF
 Channel [n] useburst set.
 
UDMA_USEBURSTCLR register bit masks
#define UDMA_USEBURSTCLR_CLR   0xFFFFFFFF
 Channel [n] useburst clear.
 
UDMA_REQMASKSET register bit masks
#define UDMA_REQMASKSET_SET   0xFFFFFFFF
 Channel [n] request mask set.
 
UDMA_REQMASKCLR register bit masks
#define UDMA_REQMASKCLR_CLR   0xFFFFFFFF
 Channel [n] request mask clear.
 
UDMA_ENASET register bit masks
#define UDMA_ENASET_SET   0xFFFFFFFF
 Channel [n] enable set.
 
UDMA_ENACLR register bit masks
#define UDMA_ENACLR_CLR   0xFFFFFFFF
 Channel [n] enable clear.
 
UDMA_ALTSET register bit masks
#define UDMA_ALTSET_SET   0xFFFFFFFF
 Channel [n] alternate set.
 
UDMA_ALTCLR register bit masks
#define UDMA_ALTCLR_CLR   0xFFFFFFFF
 Channel [n] alternate clear.
 
UDMA_PRIOSET register bit masks
#define UDMA_PRIOSET_SET   0xFFFFFFFF
 Channel [n] priority set.
 
UDMA_PRIOCLR register bit masks
#define UDMA_PRIOCLR_CLR   0xFFFFFFFF
 Channel [n] priority clear.
 
UDMA_ERRCLR register bit masks
#define UDMA_ERRCLR_ERRCLR   0x00000001
 uDMA bus error status
 
UDMA_CHASGN register bit masks
#define UDMA_CHASGN_CHASGN   0xFFFFFFFF
 Channel [n] assignment select.
 
UDMA_CHIS register bit masks
#define UDMA_CHIS_CHIS   0xFFFFFFFF
 Channel [n] interrupt status.
 
UDMA_CHMAP0 register bit masks
#define UDMA_CHMAP0_CH7SEL   0xF0000000
 uDMA channel 7 source select
 
#define UDMA_CHMAP0_CH6SEL   0x0F000000
 uDMA channel 6 source select
 
#define UDMA_CHMAP0_CH5SEL   0x00F00000
 uDMA channel 5 source select
 
#define UDMA_CHMAP0_CH4SEL   0x000F0000
 uDMA channel 4 source select
 
#define UDMA_CHMAP0_CH3SEL   0x0000F000
 uDMA channel 3 source select
 
#define UDMA_CHMAP0_CH2SEL   0x00000F00
 uDMA channel 2 source select
 
#define UDMA_CHMAP0_CH1SEL   0x000000F0
 uDMA channel 1 source select
 
#define UDMA_CHMAP0_CH0SEL   0x0000000F
 uDMA channel 0 source select
 
UDMA_CHMAP1 register bit masks
#define UDMA_CHMAP1_CH15SEL   0xF0000000
 uDMA channel 15 source select
 
#define UDMA_CHMAP1_CH14SEL   0x0F000000
 uDMA channel 14 source select
 
#define UDMA_CHMAP1_CH13SEL   0x00F00000
 uDMA channel 13 source select
 
#define UDMA_CHMAP1_CH12SEL   0x000F0000
 uDMA channel 12 source select
 
#define UDMA_CHMAP1_CH11SEL   0x0000F000
 uDMA channel 11 source select
 
#define UDMA_CHMAP1_CH10SEL   0x00000F00
 uDMA channel 10 source select
 
#define UDMA_CHMAP1_CH9SEL   0x000000F0
 uDMA channel 9 source select
 
#define UDMA_CHMAP1_CH8SEL   0x0000000F
 uDMA channel 8 source select
 
UDMA_CHMAP2 register bit masks
#define UDMA_CHMAP2_CH23SEL   0xF0000000
 uDMA channel 23 source select
 
#define UDMA_CHMAP2_CH22SEL   0x0F000000
 uDMA channel 22 source select
 
#define UDMA_CHMAP2_CH21SEL   0x00F00000
 uDMA channel 21 source select
 
#define UDMA_CHMAP2_CH20SEL   0x000F0000
 uDMA channel 20 source select
 
#define UDMA_CHMAP2_CH19SEL   0x0000F000
 uDMA channel 19 source select
 
#define UDMA_CHMAP2_CH18SEL   0x00000F00
 uDMA channel 18 source select
 
#define UDMA_CHMAP2_CH17SEL   0x000000F0
 uDMA channel 17 source select
 
#define UDMA_CHMAP2_CH16SEL   0x0000000F
 uDMA channel 16 source select
 
UDMA_CHMAP3 register bit masks
#define UDMA_CHMAP3_CH31SEL   0xF0000000
 uDMA channel 31 source select
 
#define UDMA_CHMAP3_CH30SEL   0x0F000000
 uDMA channel 30 source select
 
#define UDMA_CHMAP3_CH29SEL   0x00F00000
 uDMA channel 29 source select
 
#define UDMA_CHMAP3_CH28SEL   0x000F0000
 uDMA channel 28 source select
 
#define UDMA_CHMAP3_CH27SEL   0x0000F000
 uDMA channel 27 source select
 
#define UDMA_CHMAP3_CH26SEL   0x00000F00
 uDMA channel 26 source select
 
#define UDMA_CHMAP3_CH25SEL   0x000000F0
 uDMA channel 25 source select
 
#define UDMA_CHMAP3_CH24SEL   0x0000000F
 uDMA channel 24 source select
 
uDMA Channel encoding assignments
#define UDMA_CH0_RESERVED0   0x00
 
#define UDMA_CH0_RESERVED1   0x01
 
#define UDMA_CH0_RESERVED2   0x02
 
#define UDMA_CH0_RESERVED3   0x03
 
#define UDMA_CH0_USB   0x04
 
#define UDMA_CH1_RESERVED0   0x00
 
#define UDMA_CH1_RESERVED1   0x01
 
#define UDMA_CH1_RESERVED2   0x02
 
#define UDMA_CH1_RESERVED3   0x03
 
#define UDMA_CH1_ADC   0x04
 
#define UDMA_CH2_RESERVED0   0x00
 
#define UDMA_CH2_TIMER3A   0x01
 
#define UDMA_CH2_RESERVED2   0x02
 
#define UDMA_CH2_RESERVED3   0x03
 
#define UDMA_CH2_FLASH   0x04
 
#define UDMA_CH3_RESERVED0   0x00
 
#define UDMA_CH3_TIMER3B   0x01
 
#define UDMA_CH3_RESERVED2   0x02
 
#define UDMA_CH3_RESERVED3   0x03
 
#define UDMA_CH3_RFCORETRG1   0x04
 
#define UDMA_CH4_RESERVED0   0x00
 
#define UDMA_CH4_TIMER2A   0x01
 
#define UDMA_CH4_RESERVED2   0x02
 
#define UDMA_CH4_RESERVED3   0x03
 
#define UDMA_CH4_RFCORETRG2   0x04
 
#define UDMA_CH5_RESERVED0   0x00
 
#define UDMA_CH5_TIMER2B   0x01
 
#define UDMA_CH5_RESERVED2   0x02
 
#define UDMA_CH5_RESERVED3   0x03
 
#define UDMA_CH5_RESERVED4   0x04
 
#define UDMA_CH6_RESERVED0   0x00
 
#define UDMA_CH6_TIMER2A   0x01
 
#define UDMA_CH6_RESERVED2   0x02
 
#define UDMA_CH6_RESERVED3   0x03
 
#define UDMA_CH6_RESERVED4   0x04
 
#define UDMA_CH7_RESERVED0   0x00
 
#define UDMA_CH7_TIMER2B   0x01
 
#define UDMA_CH7_RESERVED2   0x02
 
#define UDMA_CH7_RESERVED3   0x03
 
#define UDMA_CH7_RESERVED4   0x04
 
#define UDMA_CH8_UART0RX   0x00
 
#define UDMA_CH8_UART1RX   0x01
 
#define UDMA_CH8_RESERVED2   0x02
 
#define UDMA_CH8_RESERVED3   0x03
 
#define UDMA_CH8_RESERVED4   0x04
 
#define UDMA_CH9_UART0TX   0x00
 
#define UDMA_CH9_UART1TX   0x01
 
#define UDMA_CH9_RESERVED2   0x02
 
#define UDMA_CH9_RESERVED3   0x03
 
#define UDMA_CH9_RESERVED4   0x04
 
#define UDMA_CH10_SSI0RX   0x00
 
#define UDMA_CH10_SSI1RX   0x01
 
#define UDMA_CH10_RESERVED2   0x02
 
#define UDMA_CH10_RESERVED3   0x03
 
#define UDMA_CH10_RESERVED4   0x04
 
#define UDMA_CH11_SSI0TX   0x00
 
#define UDMA_CH11_SSI1TX   0x01
 
#define UDMA_CH11_RESERVED2   0x02
 
#define UDMA_CH11_RESERVED3   0x03
 
#define UDMA_CH11_RESERVED4   0x04
 
#define UDMA_CH12_RESERVED0   0x00
 
#define UDMA_CH12_RESERVED1   0x01
 
#define UDMA_CH12_RESERVED2   0x02
 
#define UDMA_CH12_RESERVED3   0x03
 
#define UDMA_CH12_RESERVED4   0x04
 
#define UDMA_CH13_RESERVED0   0x00
 
#define UDMA_CH13_RESERVED1   0x01
 
#define UDMA_CH13_RESERVED2   0x02
 
#define UDMA_CH13_RESERVED3   0x03
 
#define UDMA_CH13_RESERVED4   0x04
 
#define UDMA_CH14_ADC0   0x00
 
#define UDMA_CH14_TIMER2A   0x01
 
#define UDMA_CH14_RESERVED2   0x02
 
#define UDMA_CH14_RESERVED3   0x03
 
#define UDMA_CH14_RESERVED4   0x04
 
#define UDMA_CH15_ADC1   0x00
 
#define UDMA_CH15_TIMER2B   0x01
 
#define UDMA_CH15_RESERVED2   0x02
 
#define UDMA_CH15_RESERVED3   0x03
 
#define UDMA_CH15_RESERVED4   0x04
 
#define UDMA_CH16_ADC2   0x00
 
#define UDMA_CH16_RESERVED1   0x01
 
#define UDMA_CH16_RESERVED2   0x02
 
#define UDMA_CH16_RESERVED3   0x03
 
#define UDMA_CH16_RESERVED4   0x04
 
#define UDMA_CH17_ADC3   0x00
 
#define UDMA_CH17_RESERVED1   0x01
 
#define UDMA_CH17_RESERVED2   0x02
 
#define UDMA_CH17_RESERVED3   0x03
 
#define UDMA_CH17_RESERVED4   0x04
 
#define UDMA_CH18_TIMER0A   0x00
 
#define UDMA_CH18_TIMER1A   0x01
 
#define UDMA_CH18_RESERVED2   0x02
 
#define UDMA_CH18_RESERVED3   0x03
 
#define UDMA_CH18_RESERVED4   0x04
 
#define UDMA_CH19_TIMER0B   0x00
 
#define UDMA_CH19_TIMER1B   0x01
 
#define UDMA_CH19_RESERVED2   0x02
 
#define UDMA_CH19_RESERVED3   0x03
 
#define UDMA_CH19_RESERVED4   0x04
 
#define UDMA_CH20_TIMER1A   0x00
 
#define UDMA_CH20_RESERVED1   0x01
 
#define UDMA_CH20_RESERVED2   0x02
 
#define UDMA_CH20_RESERVED3   0x03
 
#define UDMA_CH20_RESERVED4   0x04
 
#define UDMA_CH21_TIMER1B   0x00
 
#define UDMA_CH21_RESERVED1   0x01
 
#define UDMA_CH21_RESERVED2   0x02
 
#define UDMA_CH21_RESERVED3   0x03
 
#define UDMA_CH21_RESERVED4   0x04
 
#define UDMA_CH22_UART1RX   0x00
 
#define UDMA_CH22_RESERVED1   0x01
 
#define UDMA_CH22_RESERVED2   0x02
 
#define UDMA_CH22_RESERVED3   0x03
 
#define UDMA_CH22_RESERVED4   0x04
 
#define UDMA_CH23_UART1TX   0x00
 
#define UDMA_CH23_RESERVED1   0x01
 
#define UDMA_CH23_RESERVED2   0x02
 
#define UDMA_CH23_RESERVED3   0x03
 
#define UDMA_CH23_RESERVED4   0x04
 
#define UDMA_CH24_SSI1RX   0x00
 
#define UDMA_CH24_ADC4   0x01
 
#define UDMA_CH24_RESERVED2   0x02
 
#define UDMA_CH24_RESERVED3   0x03
 
#define UDMA_CH24_RESERVED4   0x04
 
#define UDMA_CH25_SSI1TX   0x00
 
#define UDMA_CH25_ADC5   0x01
 
#define UDMA_CH25_RESERVED2   0x02
 
#define UDMA_CH25_RESERVED3   0x03
 
#define UDMA_CH25_RESERVED4   0x04
 
#define UDMA_CH26_RESERVED0   0x00
 
#define UDMA_CH26_ADC6   0x01
 
#define UDMA_CH26_RESERVED2   0x02
 
#define UDMA_CH26_RESERVED3   0x03
 
#define UDMA_CH26_RESERVED4   0x04
 
#define UDMA_CH27_RESERVED0   0x00
 
#define UDMA_CH27_ADC7   0x01
 
#define UDMA_CH27_RESERVED2   0x02
 
#define UDMA_CH27_RESERVED3   0x03
 
#define UDMA_CH27_RESERVED4   0x04
 
#define UDMA_CH28_RESERVED0   0x00
 
#define UDMA_CH28_RESERVED1   0x01
 
#define UDMA_CH28_RESERVED2   0x02
 
#define UDMA_CH28_RESERVED3   0x03
 
#define UDMA_CH28_RESERVED4   0x04
 
#define UDMA_CH29_RESERVED0   0x00
 
#define UDMA_CH29_RESERVED1   0x01
 
#define UDMA_CH29_RESERVED2   0x02
 
#define UDMA_CH29_RESERVED3   0x03
 
#define UDMA_CH29_RFCORET2TRG1   0x04
 
#define UDMA_CH30_SW   0x00
 
#define UDMA_CH30_RESERVED1   0x01
 
#define UDMA_CH30_RESERVED2   0x02
 
#define UDMA_CH30_RESERVED3   0x03
 
#define UDMA_CH30_RFCORET2TRG2   0x04
 
#define UDMA_CH31_RESERVED0   0x00
 
#define UDMA_CH31_RESERVED1   0x01
 
#define UDMA_CH31_RESERVED2   0x02
 
#define UDMA_CH31_RESERVED3   0x03
 
#define UDMA_CH31_RESERVED4   0x04
 
Values to ORd together as the ctrl argument of

udma_set_channel_control_word()

#define UDMA_CHCTL_DSTINC_NONE   0xC0000000
 Dst address no increment.
 
#define UDMA_CHCTL_DSTINC_32   0x80000000
 Dst address increment 32 bit.
 
#define UDMA_CHCTL_DSTINC_16   0x40000000
 Dst address increment 16 bit.
 
#define UDMA_CHCTL_DSTINC_8   0x00000000
 Dst address increment 8 bit.
 
#define UDMA_CHCTL_DSTSIZE_32   0x20000000
 Destination size 32 bit.
 
#define UDMA_CHCTL_DSTSIZE_16   0x10000000
 Destination size 16 bit.
 
#define UDMA_CHCTL_DSTSIZE_8   0x00000000
 Destination size 8 bit.
 
#define UDMA_CHCTL_SRCINC_NONE   0x0C000000
 Source address no increment.
 
#define UDMA_CHCTL_SRCINC_32   0x08000000
 Source address increment 32 bit.
 
#define UDMA_CHCTL_SRCINC_16   0x04000000
 Source address increment 16 bit.
 
#define UDMA_CHCTL_SRCINC_8   0x00000000
 Source address increment 8 bit.
 
#define UDMA_CHCTL_SRCSIZE_32   0x02000000
 Source size 32 bit.
 
#define UDMA_CHCTL_SRCSIZE_16   0x01000000
 Source size 16 bit.
 
#define UDMA_CHCTL_SRCSIZE_8   0x00000000
 Source size 8 bit.
 
#define UDMA_CHCTL_ARBSIZE_1   0x00000000
 Arbitration size 1 Transfer.
 
#define UDMA_CHCTL_ARBSIZE_2   0x00004000
 Arbitration size 2 Transfers.
 
#define UDMA_CHCTL_ARBSIZE_4   0x00008000
 Arbitration size 4 Transfers.
 
#define UDMA_CHCTL_ARBSIZE_8   0x0000C000
 Arbitration size 8 Transfers.
 
#define UDMA_CHCTL_ARBSIZE_16   0x00010000
 Arbitration size 16 Transfers.
 
#define UDMA_CHCTL_ARBSIZE_32   0x00014000
 Arbitration size 32 Transfers.
 
#define UDMA_CHCTL_ARBSIZE_64   0x00018000
 Arbitration size 64 Transfers.
 
#define UDMA_CHCTL_ARBSIZE_128   0x0001C000
 Arbitration size 128 Transfers.
 
#define UDMA_CHCTL_ARBSIZE_256   0x00020000
 Arbitration size 256 Transfers.
 
#define UDMA_CHCTL_ARBSIZE_512   0x00024000
 Arbitration size 512 Transfers.
 
#define UDMA_CHCTL_ARBSIZE_1024   0x00028000
 Arbitration size 1024 Transfers.
 
#define UDMA_CHCTL_XFERMODE_STOP   0x00000000
 Stop.
 
#define UDMA_CHCTL_XFERMODE_BASIC   0x00000001
 Basic.
 
#define UDMA_CHCTL_XFERMODE_AUTO   0x00000002
 Auto-Request.
 
#define UDMA_CHCTL_XFERMODE_PINGPONG   0x00000003
 Ping-Pong.
 
#define UDMA_CHCTL_XFERMODE_MEM_SG   0x00000004
 Memory Scatter-Gather.
 
#define UDMA_CHCTL_XFERMODE_MEM_SGA   0x00000005
 Memory Scatter-Gather Alt.
 
#define UDMA_CHCTL_XFERMODE_PER_SG   0x00000006
 Peripheral Scatter-Gather.
 
#define UDMA_CHCTL_XFERMODE_PER_SGA   0x00000007
 Peripheral Scatter-Gather Alt.
 

Functions

void udma_init (void)
 Initialise the uDMA driver. More...
 
void udma_set_channel_src (uint8_t channel, uint32_t src_end)
 Sets the channels source address. More...
 
void udma_set_channel_dst (uint8_t channel, uint32_t dst_end)
 
void udma_set_channel_control_word (uint8_t channel, uint32_t ctrl)
 Configure the channel's control word. More...
 
void udma_set_channel_assignment (uint8_t channel, uint8_t enc)
 Choose an encoding for a uDMA channel. More...
 
void udma_channel_enable (uint8_t channel)
 Enables a uDMA channel. More...
 
void udma_channel_disable (uint8_t channel)
 Disables a uDMA channel. More...
 
void udma_channel_use_alternate (uint8_t channel)
 Use the alternate control data structure for a channel. More...
 
void udma_channel_use_primary (uint8_t channel)
 Use the primary control data structure for a channel. More...
 
void udma_channel_prio_set_high (uint8_t channel)
 Set a uDMA channel to high priority. More...
 
void udma_channel_prio_set_default (uint8_t channel)
 Set a uDMA channel to default priority. More...
 
void udma_channel_use_burst (uint8_t channel)
 Configure a channel to only use burst transfers. More...
 
void udma_channel_use_single (uint8_t channel)
 Configure a channel to use single as well as burst requests. More...
 
void udma_channel_mask_set (uint8_t channel)
 Disable peripheral triggers for a uDMA channel. More...
 
void udma_channel_mask_clr (uint8_t channel)
 Enable peripheral triggers for a uDMA channel. More...
 
void udma_channel_sw_request (uint8_t channel)
 Generate a software trigger to start a transfer. More...
 
uint8_t udma_channel_get_mode (uint8_t channel)
 Retrieve the current mode for a channel. More...
 

Detailed Description

Header file with register, macro and function declarations for the cc2538 micro-DMA controller module.

Definition in file udma.h.

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