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imxrt:serial add TX & RX DMA support

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imxrt:serial ioctl should call to proper setup
This commit is contained in:
David Sidrane
2022-06-09 13:31:43 -07:00
committed by Xiang Xiao
parent 85ec2e1446
commit fa58381e58
2 changed files with 1656 additions and 326 deletions
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1798
arch/arm/src/imxrt/imxrt_serial.c
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184
arch/arm/src/imxrt/imxrt_serial.h
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@@ -34,6 +34,190 @@
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#if defined(CONFIG_IMXRT_LPUART1) || defined(CONFIG_IMXRT_LPUART2) || \
defined(CONFIG_IMXRT_LPUART3) || defined(CONFIG_IMXRT_LPUART4) || \
defined(CONFIG_IMXRT_LPUART5) || defined(CONFIG_IMXRT_LPUART6) || \
defined(CONFIG_IMXRT_LPUART7) || defined(CONFIG_IMXRT_LPUART8)
# define HAVE_UART 1
#endif
/* Assume DMA is not used on the console UART */
#undef SERIAL_HAVE_CONSOLE_RXDMA
#undef SERIAL_HAVE_CONSOLE_TXDMA
#if !defined(HAVE_UART) || !defined(CONFIG_ARCH_DMA)
# undef CONFIG_LPUART1_RXDMA
# undef CONFIG_LPUART1_TXDMA
# undef CONFIG_LPUART2_RXDMA
# undef CONFIG_LPUART2_TXDMA
# undef CONFIG_LPUART3_RXDMA
# undef CONFIG_LPUART3_TXDMA
# undef CONFIG_LPUART4_RXDMA
# undef CONFIG_LPUART4_TXDMA
# undef CONFIG_LPUART5_RXDMA
# undef CONFIG_LPUART5_TXDMA
# undef CONFIG_LPUART6_RXDMA
# undef CONFIG_LPUART6_TXDMA
# undef CONFIG_LPUART7_RXDMA
# undef CONFIG_LPUART7_TXDMA
# undef CONFIG_LPUART8_RXDMA
# undef CONFIG_LPUART8_TXDMA
#endif
/* Disable the DMA configuration on all unused LPUARTs */
#ifndef CONFIG_IMXRT_LPUART1
# undef CONFIG_LPUART1_RXDMA
# undef CONFIG_LPUART1_TXDMA
#endif
#ifndef CONFIG_IMXRT_LPUART2
# undef CONFIG_LPUART2_RXDMA
# undef CONFIG_LPUART2_TXDMA
#endif
#ifndef CONFIG_IMXRT_LPUART3
# undef CONFIG_LPUART3_RXDMA
# undef CONFIG_LPUART3_TXDMA
#endif
#ifndef CONFIG_IMXRT_LPUART4
# undef CONFIG_LPUART4_RXDMA
# undef CONFIG_LPUART4_TXDMA
#endif
#ifndef CONFIG_IMXRT_LPUART5
# undef CONFIG_LPUART5_RXDMA
# undef CONFIG_LPUART5_TXDMA
#endif
#ifndef CONFIG_IMXRT_LPUART6
# undef CONFIG_LPUART6_RXDMA
# undef CONFIG_LPUART6_TXDMA
#endif
#ifndef CONFIG_IMXRT_LPUART7
# undef CONFIG_LPUART7_RXDMA
# undef CONFIG_LPUART7_TXDMA
#endif
#ifndef CONFIG_IMXRT_LPUART8
# undef CONFIG_LPUART8_RXDMA
# undef CONFIG_LPUART8_TXDMA
#endif
/* Is RX DMA available on any (enabled) LPUART? */
#undef SERIAL_HAVE_RXDMA
#if defined(CONFIG_LPUART1_RXDMA) || defined(CONFIG_LPUART2_RXDMA) || \
defined(CONFIG_LPUART3_RXDMA) || defined(CONFIG_LPUART4_RXDMA) || \
defined(CONFIG_LPUART5_RXDMA) || defined(CONFIG_LPUART6_RXDMA) || \
defined(CONFIG_LPUART7_RXDMA) || defined(CONFIG_LPUART8_RXDMA)
# define SERIAL_HAVE_RXDMA 1
#endif
/* Is TX DMA available on any (enabled) LPUART? */
#undef SERIAL_HAVE_TXDMA
#if defined(CONFIG_LPUART1_TXDMA) || defined(CONFIG_LPUART2_TXDMA) || \
defined(CONFIG_LPUART3_TXDMA) || defined(CONFIG_LPUART4_TXDMA) || \
defined(CONFIG_LPUART5_TXDMA) || defined(CONFIG_LPUART6_TXDMA) || \
defined(CONFIG_LPUART7_TXDMA) || defined(CONFIG_LPUART8_TXDMA)
# define SERIAL_HAVE_TXDMA 1
#endif
/* Is RX DMA used on all (enabled) LPUARTs */
#define SERIAL_HAVE_ONLY_RXDMA 1
#if defined(CONFIG_IMXRT_LPUART1) && !defined(CONFIG_LPUART1_RXDMA)
# undef SERIAL_HAVE_ONLY_RXDMA
#elif defined(CONFIG_IMXRT_LPUART2) && !defined(CONFIG_LPUART2_RXDMA)
# undef SERIAL_HAVE_ONLY_RXDMA
#elif defined(CONFIG_IMXRT_LPUART3) && !defined(CONFIG_LPUART3_RXDMA)
# undef SERIAL_HAVE_ONLY_RXDMA
#elif defined(CONFIG_IMXRT_LPUART4) && !defined(CONFIG_LPUART4_RXDMA)
# undef SERIAL_HAVE_ONLY_RXDMA
#elif defined(CONFIG_IMXRT_LPUART5) && !defined(CONFIG_LPUART5_RXDMA)
# undef SERIAL_HAVE_ONLY_RXDMA
#elif defined(CONFIG_IMXRT_LPUART6) && !defined(CONFIG_LPUART6_RXDMA)
# undef SERIAL_HAVE_ONLY_RXDMA
#elif defined(CONFIG_IMXRT_LPUART7) && !defined(CONFIG_LPUART7_RXDMA)
# undef SERIAL_HAVE_ONLY_RXDMA
#elif defined(CONFIG_IMXRT_LPUART8) && !defined(CONFIG_LPUART8_RXDMA)
# undef SERIAL_HAVE_ONLY_RXDMA
#endif
/* Is TX DMA used on all (enabled) LPUARTs */
#define SERIAL_HAVE_ONLY_TXDMA 1
#if defined(CONFIG_IMXRT_LPUART1) && !defined(CONFIG_LPUART1_TXDMA)
# undef SERIAL_HAVE_ONLY_TXDMA
#elif defined(CONFIG_IMXRT_LPUART2) && !defined(CONFIG_LPUART2_TXDMA)
# undef SERIAL_HAVE_ONLY_TXDMA
#elif defined(CONFIG_IMXRT_LPUART3) && !defined(CONFIG_LPUART3_TXDMA)
# undef SERIAL_HAVE_ONLY_TXDMA
#elif defined(CONFIG_IMXRT_LPUART4) && !defined(CONFIG_LPUART4_TXDMA)
# undef SERIAL_HAVE_ONLY_TXDMA
#elif defined(CONFIG_IMXRT_LPUART5) && !defined(CONFIG_LPUART5_TXDMA)
# undef SERIAL_HAVE_ONLY_TXDMA
#elif defined(CONFIG_IMXRT_LPUART6) && !defined(CONFIG_LPUART6_TXDMA)
# undef SERIAL_HAVE_ONLY_TXDMA
#elif defined(CONFIG_IMXRT_LPUART7) && !defined(CONFIG_LPUART7_TXDMA)
# undef SERIAL_HAVE_ONLY_TXDMA
#elif defined(CONFIG_IMXRT_LPUART8) && !defined(CONFIG_LPUART8_TXDMA)
# undef SERIAL_HAVE_ONLY_TXDMA
#endif
#undef SERIAL_HAVE_ONLY_DMA
#if defined(SERIAL_HAVE_ONLY_RXDMA) && defined(SERIAL_HAVE_ONLY_TXDMA)
#define SERIAL_HAVE_ONLY_DMA
#endif
/* Verify that DMA has been enabled and the DMA channel has been defined.
*/
# if defined(SERIAL_HAVE_TXDMA) || defined(SERIAL_HAVE_RXDMA)
# ifndef CONFIG_IMXRT_EDMA
# error IMXRT LPUART receive or transmit DMA requires CONFIG_IMXRT_EDMA
# endif
# endif
#if defined(SERIAL_HAVE_RXDMA)
/* Currently RS-485 support cannot be enabled when RXDMA is in use due to
* lack of testing.
*/
# if (defined(CONFIG_LPUART1_RXDMA) && defined(CONFIG_LPUART1_RS485)) || \
(defined(CONFIG_LPUART2_RXDMA) && defined(CONFIG_LPUART2_RS485)) || \
(defined(CONFIG_LPUART3_RXDMA) && defined(CONFIG_LPUART3_RS485)) || \
(defined(CONFIG_LPUART4_RXDMA) && defined(CONFIG_LPUART4_RS485)) || \
(defined(CONFIG_LPUART5_RXDMA) && defined(CONFIG_LPUART5_RS485)) || \
(defined(CONFIG_LPUART6_RXDMA) && defined(CONFIG_LPUART6_RS485)) || \
(defined(CONFIG_LPUART7_RXDMA) && defined(CONFIG_LPUART7_RS485)) || \
(defined(CONFIG_LPUART8_RXDMA) && defined(CONFIG_LPUART8_RS485))
# error "RXDMA and RS-485 cannot be enabled at the same time for the same LPUART"
# endif
#endif /* SERIAL_HAVE_RXDMA */
/* Currently RS-485 support cannot be enabled when TXDMA is in use due to
* lack of testing.
*/
#if (defined(CONFIG_LPUART1_TXDMA) && defined(CONFIG_LPUART1_RS485)) || \
(defined(CONFIG_LPUART2_TXDMA) && defined(CONFIG_LPUART2_RS485)) || \
(defined(CONFIG_LPUART3_TXDMA) && defined(CONFIG_LPUART3_RS485)) || \
(defined(CONFIG_LPUART4_TXDMA) && defined(CONFIG_LPUART4_RS485)) || \
(defined(CONFIG_LPUART5_TXDMA) && defined(CONFIG_LPUART5_RS485)) || \
(defined(CONFIG_LPUART6_TXDMA) && defined(CONFIG_LPUART6_RS485)) || \
(defined(CONFIG_LPUART7_TXDMA) && defined(CONFIG_LPUART7_RS485)) || \
(defined(CONFIG_LPUART8_TXDMA) && defined(CONFIG_LPUART8_RS485))
# error "TXDMA and RS-485 cannot be enabled at the same time for the same LPUART"
#endif
/****************************************************************************
* Public Types
****************************************************************************/