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linux/arch/arm/mach-s3c64xx/include/mach/dma.h

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[ARM] S3C64XX: Initial arch header files Add the initial header files for the S3C64XX support to satisfy the minimal requirements to build a kernel. Some definitions will therefore be placeholders or empty functions that will ensure that the system can build and have base functionality. These will be filled in at a later date. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-10-21 21:06:40 +08:00
/* linux/arch/arm/mach-s3c6400/include/mach/dma.h
*
* Copyright 2008 Openmoko, Inc.
* Copyright 2008 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
* http://armlinux.simtec.co.uk/
*
* S3C6400 - DMA support
*/
#ifndef __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H __FILE__
ARM: s3c64xx: Add support for DMA using generic amba-pl08x driver This patch adds all required platform-specific data and initialization code to support the generic amba-pl08x driver on S3C64xx SoCs. Also some compatibility definitions are added to make the transition from legacy API to DMA engine easier. The biggest hack here is passing const char * pointers through DMA resource, casted to unsigned long, but this is how Samsung DMA wrappers (used to support both s3c-dma and DMA engine in drivers) are designed. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-10-17 03:10:54 +08:00
#define S3C64XX_DMA_CHAN(name) ((unsigned long)(name))
/* DMA0/SDMA0 */
ASoC: samsung: pass DMA channels as pointers ARM64 allmodconfig produces a bunch of warnings when building the samsung ASoC code: sound/soc/samsung/dmaengine.c: In function 'samsung_asoc_init_dma_data': sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] playback_data->filter_data = (void *)playback->channel; sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] capture_data->filter_data = (void *)capture->channel; We could easily shut up the warning by adding an intermediate cast, but there is a bigger underlying problem: The use of IORESOURCE_DMA to pass data from platform code to device drivers is dubious to start with, as what we really want is a pointer that can be passed into a filter function. Note that on s3c64xx, the pl08x DMA data is already a pointer, but gets cast to resource_size_t so we can pass it as a resource, and it then gets converted back to a pointer. In contrast, the data we pass for s3c24xx is an index into a device specific table, and we artificially convert that into a pointer for the filter function. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-11-18 22:25:23 +08:00
#define DMACH_UART0 "uart0_tx"
#define DMACH_UART0_SRC2 "uart0_rx"
#define DMACH_UART1 "uart1_tx"
#define DMACH_UART1_SRC2 "uart1_rx"
#define DMACH_UART2 "uart2_tx"
#define DMACH_UART2_SRC2 "uart2_rx"
#define DMACH_UART3 "uart3_tx"
#define DMACH_UART3_SRC2 "uart3_rx"
#define DMACH_PCM0_TX "pcm0_tx"
#define DMACH_PCM0_RX "pcm0_rx"
#define DMACH_I2S0_OUT "i2s0_tx"
#define DMACH_I2S0_IN "i2s0_rx"
ARM: s3c64xx: Add support for DMA using generic amba-pl08x driver This patch adds all required platform-specific data and initialization code to support the generic amba-pl08x driver on S3C64xx SoCs. Also some compatibility definitions are added to make the transition from legacy API to DMA engine easier. The biggest hack here is passing const char * pointers through DMA resource, casted to unsigned long, but this is how Samsung DMA wrappers (used to support both s3c-dma and DMA engine in drivers) are designed. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-10-17 03:10:54 +08:00
#define DMACH_SPI0_TX S3C64XX_DMA_CHAN("spi0_tx")
#define DMACH_SPI0_RX S3C64XX_DMA_CHAN("spi0_rx")
ASoC: samsung: pass DMA channels as pointers ARM64 allmodconfig produces a bunch of warnings when building the samsung ASoC code: sound/soc/samsung/dmaengine.c: In function 'samsung_asoc_init_dma_data': sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] playback_data->filter_data = (void *)playback->channel; sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] capture_data->filter_data = (void *)capture->channel; We could easily shut up the warning by adding an intermediate cast, but there is a bigger underlying problem: The use of IORESOURCE_DMA to pass data from platform code to device drivers is dubious to start with, as what we really want is a pointer that can be passed into a filter function. Note that on s3c64xx, the pl08x DMA data is already a pointer, but gets cast to resource_size_t so we can pass it as a resource, and it then gets converted back to a pointer. In contrast, the data we pass for s3c24xx is an index into a device specific table, and we artificially convert that into a pointer for the filter function. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-11-18 22:25:23 +08:00
#define DMACH_HSI_I2SV40_TX "i2s2_tx"
#define DMACH_HSI_I2SV40_RX "i2s2_rx"
ARM: s3c64xx: Add support for DMA using generic amba-pl08x driver This patch adds all required platform-specific data and initialization code to support the generic amba-pl08x driver on S3C64xx SoCs. Also some compatibility definitions are added to make the transition from legacy API to DMA engine easier. The biggest hack here is passing const char * pointers through DMA resource, casted to unsigned long, but this is how Samsung DMA wrappers (used to support both s3c-dma and DMA engine in drivers) are designed. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-10-17 03:10:54 +08:00
/* DMA1/SDMA1 */
ASoC: samsung: pass DMA channels as pointers ARM64 allmodconfig produces a bunch of warnings when building the samsung ASoC code: sound/soc/samsung/dmaengine.c: In function 'samsung_asoc_init_dma_data': sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] playback_data->filter_data = (void *)playback->channel; sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] capture_data->filter_data = (void *)capture->channel; We could easily shut up the warning by adding an intermediate cast, but there is a bigger underlying problem: The use of IORESOURCE_DMA to pass data from platform code to device drivers is dubious to start with, as what we really want is a pointer that can be passed into a filter function. Note that on s3c64xx, the pl08x DMA data is already a pointer, but gets cast to resource_size_t so we can pass it as a resource, and it then gets converted back to a pointer. In contrast, the data we pass for s3c24xx is an index into a device specific table, and we artificially convert that into a pointer for the filter function. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-11-18 22:25:23 +08:00
#define DMACH_PCM1_TX "pcm1_tx"
#define DMACH_PCM1_RX "pcm1_rx"
#define DMACH_I2S1_OUT "i2s1_tx"
#define DMACH_I2S1_IN "i2s1_rx"
ARM: s3c64xx: Add support for DMA using generic amba-pl08x driver This patch adds all required platform-specific data and initialization code to support the generic amba-pl08x driver on S3C64xx SoCs. Also some compatibility definitions are added to make the transition from legacy API to DMA engine easier. The biggest hack here is passing const char * pointers through DMA resource, casted to unsigned long, but this is how Samsung DMA wrappers (used to support both s3c-dma and DMA engine in drivers) are designed. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-10-17 03:10:54 +08:00
#define DMACH_SPI1_TX S3C64XX_DMA_CHAN("spi1_tx")
#define DMACH_SPI1_RX S3C64XX_DMA_CHAN("spi1_rx")
ASoC: samsung: pass DMA channels as pointers ARM64 allmodconfig produces a bunch of warnings when building the samsung ASoC code: sound/soc/samsung/dmaengine.c: In function 'samsung_asoc_init_dma_data': sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] playback_data->filter_data = (void *)playback->channel; sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] capture_data->filter_data = (void *)capture->channel; We could easily shut up the warning by adding an intermediate cast, but there is a bigger underlying problem: The use of IORESOURCE_DMA to pass data from platform code to device drivers is dubious to start with, as what we really want is a pointer that can be passed into a filter function. Note that on s3c64xx, the pl08x DMA data is already a pointer, but gets cast to resource_size_t so we can pass it as a resource, and it then gets converted back to a pointer. In contrast, the data we pass for s3c24xx is an index into a device specific table, and we artificially convert that into a pointer for the filter function. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-11-18 22:25:23 +08:00
#define DMACH_AC97_PCMOUT "ac97_out"
#define DMACH_AC97_PCMIN "ac97_in"
#define DMACH_AC97_MICIN "ac97_mic"
#define DMACH_PWM "pwm"
#define DMACH_IRDA "irda"
#define DMACH_EXTERNAL "external"
#define DMACH_SECURITY_RX "sec_rx"
#define DMACH_SECURITY_TX "sec_tx"
ARM: s3c64xx: Add support for DMA using generic amba-pl08x driver This patch adds all required platform-specific data and initialization code to support the generic amba-pl08x driver on S3C64xx SoCs. Also some compatibility definitions are added to make the transition from legacy API to DMA engine easier. The biggest hack here is passing const char * pointers through DMA resource, casted to unsigned long, but this is how Samsung DMA wrappers (used to support both s3c-dma and DMA engine in drivers) are designed. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-10-17 03:10:54 +08:00
enum dma_ch {
DMACH_MAX = 32
};
#include <linux/amba/pl08x.h>
[ARM] S3C64XX: Initial arch header files Add the initial header files for the S3C64XX support to satisfy the minimal requirements to build a kernel. Some definitions will therefore be placeholders or empty functions that will ensure that the system can build and have base functionality. These will be filled in at a later date. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-10-21 21:06:40 +08:00
#endif /* __ASM_ARCH_IRQ_H */