diff options
Diffstat (limited to 'c/src/lib/libcpu/powerpc/mpc55xx/include/edma.h')
| -rw-r--r-- | c/src/lib/libcpu/powerpc/mpc55xx/include/edma.h | 329 |
1 files changed, 0 insertions, 329 deletions
diff --git a/c/src/lib/libcpu/powerpc/mpc55xx/include/edma.h b/c/src/lib/libcpu/powerpc/mpc55xx/include/edma.h deleted file mode 100644 index 281cdf1c28..0000000000 --- a/c/src/lib/libcpu/powerpc/mpc55xx/include/edma.h +++ /dev/null @@ -1,329 +0,0 @@ -/** - * @file - * - * @ingroup mpc55xx - * - * @brief Enhanced Direct Memory Access (eDMA). - */ - -/* - * Copyright (c) 2008-2013 embedded brains GmbH. All rights reserved. - * - * embedded brains GmbH - * Dornierstr. 4 - * 82178 Puchheim - * Germany - * <rtems@embedded-brains.de> - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - */ - -#ifndef LIBCPU_POWERPC_MPC55XX_EDMA_H -#define LIBCPU_POWERPC_MPC55XX_EDMA_H - -#include <mpc55xx/regs.h> - -#include <rtems.h> -#include <rtems/chain.h> - -#ifdef __cplusplus -extern "C" { -#endif /* __cplusplus */ - -#if MPC55XX_CHIP_FAMILY == 551 - #define EDMA_CHANNEL_COUNT 16U -#elif MPC55XX_CHIP_FAMILY == 564 - #define EDMA_CHANNEL_COUNT 16U -#elif MPC55XX_CHIP_FAMILY == 567 - #define EDMA_CHANNEL_COUNT 96U -#else - #define EDMA_CHANNEL_COUNT 64U -#endif - -#define EDMA_MODULE_COUNT ((EDMA_CHANNEL_COUNT + 63U) / 64U) - -#define EDMA_CHANNELS_PER_MODULE 64U - -#if EDMA_MODULE_COUNT == 1 - #define EDMA_TCD_BY_CHANNEL_INDEX(channel_index) \ - (&EDMA.TCD[(channel_index)]) -#elif EDMA_MODULE_COUNT == 2 - #define EDMA_TCD_BY_CHANNEL_INDEX(channel_index) \ - ((channel_index) < EDMA_CHANNELS_PER_MODULE ? \ - &EDMA_A.TCD[(channel_index)] \ - : &EDMA_B.TCD[(channel_index) - EDMA_CHANNELS_PER_MODULE]) -#else - #error "unsupported module count" -#endif - -/* FIXME: These values are only valid for the MPC5566 and MPC5674F */ -typedef enum { - EDMA_EQADC_A_FISR0_CFFF0 = 0, - EDMA_EQADC_A_FISR0_RFDF0 = 1, - EDMA_EQADC_A_FISR1_CFFF1 = 2, - EDMA_EQADC_A_FISR1_RFDF1 = 3, - EDMA_EQADC_A_FISR2_CFFF2 = 4, - EDMA_EQADC_A_FISR2_RFDF2 = 5, - EDMA_EQADC_A_FISR3_CFFF3 = 6, - EDMA_EQADC_A_FISR3_RFDF3 = 7, - EDMA_EQADC_A_FISR4_CFFF4 = 8, - EDMA_EQADC_A_FISR4_RFDF4 = 9, - EDMA_EQADC_A_FISR5_CFFF5 = 10, - EDMA_EQADC_A_FISR5_RFDF5 = 11, - EDMA_DSPI_B_SR_TFFF = 12, - EDMA_DSPI_B_SR_RFDF = 13, - EDMA_DSPI_C_SR_TFFF = 14, - EDMA_DSPI_C_SR_RFDF = 15, - EDMA_DSPI_D_SR_TFFF = 16, - EDMA_DSPI_D_SR_RFDF = 17, - EDMA_ESCI_A_COMBTX = 18, - EDMA_ESCI_A_COMBRX = 19, - EDMA_EMIOS_GFR_F0 = 20, - EDMA_EMIOS_GFR_F1 = 21, - EDMA_EMIOS_GFR_F2 = 22, - EDMA_EMIOS_GFR_F3 = 23, - EDMA_EMIOS_GFR_F4 = 24, - EDMA_EMIOS_GFR_F8 = 25, - EDMA_EMIOS_GFR_F9 = 26, - EDMA_ETPU_CDTRSR_A_DTRS0 = 27, - EDMA_ETPU_CDTRSR_A_DTRS1 = 28, - EDMA_ETPU_CDTRSR_A_DTRS2 = 29, - EDMA_ETPU_CDTRSR_A_DTRS14 = 30, - EDMA_ETPU_CDTRSR_A_DTRS15 = 31, - EDMA_DSPI_A_SR_TFFF = 32, - EDMA_DSPI_A_SR_RFDF = 33, - EDMA_ESCI_B_COMBTX = 34, - EDMA_ESCI_B_COMBRX = 35, - EDMA_EMIOS_GFR_F6 = 36, - EDMA_EMIOS_GFR_F7 = 37, - EDMA_EMIOS_GFR_F10 = 38, - EDMA_EMIOS_GFR_F11 = 39, - EDMA_EMIOS_GFR_F16 = 40, - EDMA_EMIOS_GFR_F17 = 41, - EDMA_EMIOS_GFR_F18 = 42, - EDMA_EMIOS_GFR_F19 = 43, - EDMA_ETPU_CDTRSR_A_DTRS12 = 44, - EDMA_ETPU_CDTRSR_A_DTRS13 = 45, - EDMA_ETPU_CDTRSR_A_DTRS28 = 46, - EDMA_ETPU_CDTRSR_A_DTRS29 = 47, - EDMA_SIU_EISR_EIF0 = 48, - EDMA_SIU_EISR_EIF1 = 49, - EDMA_SIU_EISR_EIF2 = 50, - EDMA_SIU_EISR_EIF3 = 51, - EDMA_ETPU_CDTRSR_B_DTRS0 = 52, - EDMA_ETPU_CDTRSR_B_DTRS1 = 53, - EDMA_ETPU_CDTRSR_B_DTRS2 = 54, - EDMA_ETPU_CDTRSR_B_DTRS3 = 55, - EDMA_ETPU_CDTRSR_B_DTRS12 = 56, - EDMA_ETPU_CDTRSR_B_DTRS13 = 57, - EDMA_ETPU_CDTRSR_B_DTRS14 = 58, - EDMA_ETPU_CDTRSR_B_DTRS15 = 59, - EDMA_ETPU_CDTRSR_B_DTRS28 = 60, - EDMA_ETPU_CDTRSR_B_DTRS29 = 61, - EDMA_ETPU_CDTRSR_B_DTRS30 = 62, - EDMA_ETPU_CDTRSR_B_DTRS31 = 63 - #if MPC55XX_CHIP_FAMILY == 567 - , - EDMA_EQADC_B_FISR0_CFFF0 = 64 + 0, - EDMA_EQADC_B_FISR0_RFDF0 = 64 + 1, - EDMA_EQADC_B_FISR1_CFFF1 = 64 + 2, - EDMA_EQADC_B_FISR1_RFDF1 = 64 + 3, - EDMA_EQADC_B_FISR2_CFFF2 = 64 + 4, - EDMA_EQADC_B_FISR2_RFDF2 = 64 + 5, - EDMA_EQADC_B_FISR3_CFFF3 = 64 + 6, - EDMA_EQADC_B_FISR3_RFDF3 = 64 + 7, - EDMA_EQADC_B_FISR4_CFFF4 = 64 + 8, - EDMA_EQADC_B_FISR4_RFDF4 = 64 + 9, - EDMA_EQADC_B_FISR5_CFFF5 = 64 + 10, - EDMA_EQADC_B_FISR5_RFDF5 = 64 + 11, - EDMA_DECFILTER_A_IB = 64 + 12, - EDMA_DECFILTER_A_OB = 64 + 13, - EDMA_DECFILTER_B_IB = 64 + 14, - EDMA_DECFILTER_B_OB = 64 + 15, - EDMA_DECFILTER_C_IB = 64 + 16, - EDMA_DECFILTER_C_OB = 64 + 17, - EDMA_DECFILTER_D_IB = 64 + 18, - EDMA_DECFILTER_D_OB = 64 + 19, - EDMA_DECFILTER_E_IB = 64 + 20, - EDMA_DECFILTER_E_OB = 64 + 21, - EDMA_DECFILTER_F_IB = 64 + 22, - EDMA_DECFILTER_F_OB = 64 + 23, - EDMA_DECFILTER_G_IB = 64 + 24, - EDMA_DECFILTER_G_OB = 64 + 25, - EDMA_DECFILTER_H_IB = 64 + 26, - EDMA_DECFILTER_H_OB = 64 + 27 - #endif -} edma_channel; - -typedef struct edma_channel_context { - rtems_chain_node node; - volatile struct tcd_t *edma_tcd; - void (*done)(struct edma_channel_context *, uint32_t); -} edma_channel_context; - -void mpc55xx_edma_init(void); - -/** - * @brief Obtains an eDMA channel. - * - * @retval RTEMS_SUCCESSFUL Successful operation. - * @retval RTEMS_RESOURCE_IN_USE The channel is already in use. - */ -rtems_status_code mpc55xx_edma_obtain_channel_by_tcd( - volatile struct tcd_t *edma_tcd -); - -void mpc55xx_edma_release_channel_by_tcd(volatile struct tcd_t *edma_tcd); - -/** - * @brief Obtains an eDMA channel and registers the channel context. - * - * The done handler of the channel context will be called - * - during minor or major loop completions if interrupts are enabled in the - * corresponding TCD, or - * - in case a channel error occurs. - * - * An error status value not equal to zero indicates an error. - * - * @retval RTEMS_SUCCESSFUL Successful operation. - * @retval RTEMS_RESOURCE_IN_USE The channel is already in use. - * @retval RTEMS_IO_ERROR Unable to install interrupt handler for this channel. - */ -rtems_status_code mpc55xx_edma_obtain_channel( - edma_channel_context *ctx, - unsigned irq_priority -); - -void mpc55xx_edma_release_channel(edma_channel_context *ctx); - -/** - * @brief Copies a source TCD to an eDMA TCD. - * - * The DONE flag of the eDMA TCD is cleared before the actual copy operation. - * This enables the setting of channel link or scatter/gather options. - * - * This function can be used to start the channel if the START flags is - * set in the source TCD. - */ -void mpc55xx_edma_copy( - volatile struct tcd_t *edma_tcd, - const struct tcd_t *source_tcd -); - -/** - * @brief Copies a source TCD to an eDMA TCD and enables hardware requests. - * - * The DONE flag of the eDMA TCD is cleared before the actual copy operation. - * This enables the setting of channel link or scatter/gather options. - */ -void mpc55xx_edma_copy_and_enable_hardware_requests( - volatile struct tcd_t *edma_tcd, - const struct tcd_t *source_tcd -); - -void mpc55xx_edma_sg_link( - volatile struct tcd_t *edma_tcd, - const struct tcd_t *source_tcd -); - -static inline volatile struct EDMA_tag *mpc55xx_edma_by_tcd( - volatile struct tcd_t *edma_tcd -) -{ - return (volatile struct EDMA_tag *) - ((uintptr_t) edma_tcd & ~(uintptr_t) 0x1fff); -} - -static inline unsigned mpc55xx_edma_channel_by_tcd( - volatile struct tcd_t *edma_tcd -) -{ - volatile struct EDMA_tag *edma = mpc55xx_edma_by_tcd(edma_tcd); - - return edma_tcd - &edma->TCD[0]; -} - -static inline void mpc55xx_edma_enable_hardware_requests( - volatile struct tcd_t *edma_tcd -) -{ - volatile struct EDMA_tag *edma = mpc55xx_edma_by_tcd(edma_tcd); - unsigned channel = edma_tcd - &edma->TCD[0]; - - edma->SERQR.R = (uint8_t) channel; -} - -static inline void mpc55xx_edma_disable_hardware_requests( - volatile struct tcd_t *edma_tcd -) -{ - volatile struct EDMA_tag *edma = mpc55xx_edma_by_tcd(edma_tcd); - unsigned channel = edma_tcd - &edma->TCD[0]; - - edma->CERQR.R = (uint8_t) channel; -} - -static inline void mpc55xx_edma_enable_error_interrupts( - volatile struct tcd_t *edma_tcd -) -{ - volatile struct EDMA_tag *edma = mpc55xx_edma_by_tcd(edma_tcd); - unsigned channel = edma_tcd - &edma->TCD[0]; - - edma->SEEIR.R = (uint8_t) channel; -} - -static inline void mpc55xx_edma_disable_error_interrupts( - volatile struct tcd_t *edma_tcd -) -{ - volatile struct EDMA_tag *edma = mpc55xx_edma_by_tcd(edma_tcd); - unsigned channel = edma_tcd - &edma->TCD[0]; - - edma->CEEIR.R = (uint8_t) channel; -} - -static inline void mpc55xx_edma_set_start( - volatile struct tcd_t *edma_tcd -) -{ - volatile struct EDMA_tag *edma = mpc55xx_edma_by_tcd(edma_tcd); - unsigned channel = edma_tcd - &edma->TCD[0]; - - edma->SSBR.R = (uint8_t) channel; -} - -static inline void mpc55xx_edma_clear_done( - volatile struct tcd_t *edma_tcd -) -{ - volatile struct EDMA_tag *edma = mpc55xx_edma_by_tcd(edma_tcd); - unsigned channel = edma_tcd - &edma->TCD[0]; - - edma->CDSBR.R = (uint8_t) channel; -} - -static inline void mpc55xx_edma_clear_interrupts( - volatile struct tcd_t *edma_tcd -) -{ - volatile struct EDMA_tag *edma = mpc55xx_edma_by_tcd(edma_tcd); - unsigned channel = edma_tcd - &edma->TCD[0]; - - edma->CIRQR.R = (uint8_t) channel; -} - -static inline bool mpc55xx_edma_is_done( - volatile struct tcd_t *edma_tcd -) -{ - return edma_tcd->BMF.B.DONE; -} - -#ifdef __cplusplus -} -#endif /* __cplusplus */ - -#endif /* LIBCPU_POWERPC_MPC55XX_EDMA_H */ |