static void clear_chan_interrupts(int c)
{
out_le32(&(host_pvt.sata_dma_regs->interrupt_clear.tfr.low),
DMA_CHANNEL(c));
out_le32(&(host_pvt.sata_dma_regs->interrupt_clear.block.low),
DMA_CHANNEL(c));
out_le32(&(host_pvt.sata_dma_regs->interrupt_clear.srctran.low),
DMA_CHANNEL(c));
out_le32(&(host_pvt.sata_dma_regs->interrupt_clear.dsttran.low),
DMA_CHANNEL(c));
out_le32(&(host_pvt.sata_dma_regs->interrupt_clear.error.low),
DMA_CHANNEL(c));
}
/*
* Function: dma_request_channel
* arguments: None
* returns channel number if available else -1
* This function assigns the next available DMA channel from the list to the
* requester
*/
static int dma_request_channel(void)
{
/* Check if the channel is not currently in use */
if (!(in_le32(&(host_pvt.sata_dma_regs->dma_chan_en.low)) &
DMA_CHANNEL(host_pvt.dma_channel)))
return host_pvt.dma_channel;
dev_err(host_pvt.dwc_dev, "%s Channel %d is currently in use\n",
__func__, host_pvt.dma_channel);
return -1;
}
static void au1xmmc_data_complete(struct au1xmmc_host *host, u32 status)
{
struct mmc_request *mrq = host->mrq;
struct mmc_data *data;
u32 crc;
WARN_ON(host->status != HOST_S_DATA && host->status != HOST_S_STOP);
if (host->mrq == NULL)
return;
data = mrq->cmd->data;
if (status == 0)
status = au_readl(HOST_STATUS(host));
/* The transaction is really over when the SD_STATUS_DB bit is clear */
while((host->flags & HOST_F_XMIT) && (status & SD_STATUS_DB))
status = au_readl(HOST_STATUS(host));
data->error = MMC_ERR_NONE;
dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len, host->dma.dir);
/* Process any errors */
crc = (status & (SD_STATUS_WC | SD_STATUS_RC));
if (host->flags & HOST_F_XMIT)
crc |= ((status & 0x07) == 0x02) ? 0 : 1;
if (crc)
data->error = MMC_ERR_BADCRC;
/* Clear the CRC bits */
au_writel(SD_STATUS_WC | SD_STATUS_RC, HOST_STATUS(host));
data->bytes_xfered = 0;
if (data->error == MMC_ERR_NONE) {
if (host->flags & HOST_F_DMA) {
u32 chan = DMA_CHANNEL(host);
chan_tab_t *c = *((chan_tab_t **) chan);
au1x_dma_chan_t *cp = c->chan_ptr;
data->bytes_xfered = cp->ddma_bytecnt;
}
else
data->bytes_xfered =
(data->blocks * (1 << data->blksz_bits)) -
host->pio.len;
}
au1xmmc_finish_request(host);
}
static void au1xmmc_data_complete(struct au1xmmc_host *host, u32 status)
{
struct mmc_request *mrq = host->mrq;
struct mmc_data *data;
u32 crc;
WARN_ON((host->status != HOST_S_DATA) && (host->status != HOST_S_STOP));
if (host->mrq == NULL)
return;
data = mrq->cmd->data;
if (status == 0)
status = au_readl(HOST_STATUS(host));
while ((host->flags & HOST_F_XMIT) && (status & SD_STATUS_DB))
status = au_readl(HOST_STATUS(host));
data->error = 0;
dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len, host->dma.dir);
crc = (status & (SD_STATUS_WC | SD_STATUS_RC));
if (host->flags & HOST_F_XMIT)
crc |= ((status & 0x07) == 0x02) ? 0 : 1;
if (crc)
data->error = -EILSEQ;
au_writel(SD_STATUS_WC | SD_STATUS_RC, HOST_STATUS(host));
data->bytes_xfered = 0;
if (!data->error) {
if (host->flags & HOST_F_DMA) {
#ifdef CONFIG_SOC_AU1200
u32 chan = DMA_CHANNEL(host);
chan_tab_t *c = *((chan_tab_t **)chan);
au1x_dma_chan_t *cp = c->chan_ptr;
data->bytes_xfered = cp->ddma_bytecnt;
#endif
} else
data->bytes_xfered =
(data->blocks * data->blksz) - host->pio.len;
}
au1xmmc_finish_request(host);
}
static int dma_request_channel(void)
{
int i;
for (i = 0; i < DMA_NUM_CHANS; i++) {
if (!(in_le32(&(host_pvt.sata_dma_regs->dma_chan_en.low)) &\
DMA_CHANNEL(i)))
return i;
}
dev_err(host_pvt.dwc_dev, "%s NO channel chan_en: 0x%08x\n", __func__,
in_le32(&(host_pvt.sata_dma_regs->dma_chan_en.low)));
return -1;
}
//! This function dynamic allocate a channel according the DMA requests.
//! The \ref ulDMASrcRequest and \ref ulDMADestRequest can be:
//! - \ref DMA_REQUEST_ADC0_RX
//! - \ref DMA_REQUEST_TIM2_CH3
//! - \ref DMA_REQUEST_TIM4_CH1
//! - \ref DMA_REQUEST_UART3_TX
//! - \ref DMA_REQUEST_TIM1_CH1
//! - \ref DMA_REQUEST_TIM2_UP
//! - \ref DMA_REQUEST_TIM3_CH3
//! - \ref DMA_REQUEST_SPI1_RX
//! - \ref DMA_REQUEST_UART3_RX
//! - \ref DMA_REQUEST_TIM1_CH2
//! - \ref DMA_REQUEST_TIM3_CH4
//! - \ref DMA_REQUEST_TIM3_UP
//! - others refrence \ref STM32F1xx_DMA_Request_Connections
//! .
//!
//! \note ulDMASrcRequest can only be XX_RX and TIMx_CHx
//! ulDMADestRequest can only be XX_TX,TIMx_TRIG,TIMx_COM and TIMx_UP.
//!
//! \return Returns a Channel ID that dynamic assignment.
//! The channel ID can be:
//! - DMA1_CHANNEL_1
//! - DMA1_CHANNEL_2
//! - others refrence \ref STM32F1xx_DMA_Channel_IDs
//! .
//
//*****************************************************************************
unsigned long
DMAChannelDynamicAssign(unsigned long ulDMASrcRequest,
unsigned long ulDMADestRequest)
{
unsigned long ulChannelID;
//
// Check the arguments.
//
xASSERT((ulDMASrcRequest == DMA_REQUEST_ADC0_RX) ||
(ulDMASrcRequest == DMA_REQUEST_TIM2_CH3) ||
(ulDMASrcRequest == DMA_REQUEST_TIM4_CH1) ||
(ulDMASrcRequest == xDMA_REQUEST_MEM) ||
(ulDMASrcRequest == DMA_REQUEST_TIM1_CH1) ||
(ulDMASrcRequest == DMA_REQUEST_TIM3_CH3) ||
(ulDMASrcRequest == DMA_REQUEST_SPI1_RX) ||
(ulDMASrcRequest == DMA_REQUEST_TIM3_CH4) ||
(ulDMASrcRequest == DMA_REQUEST_TIM1_CH4) ||
(ulDMASrcRequest == DMA_REQUEST_TIM4_CH2) ||
(ulDMASrcRequest == DMA_REQUEST_SPI2_RX) ||
(ulDMASrcRequest == DMA_REQUEST_I2S2_RX) ||
(ulDMASrcRequest == DMA_REQUEST_TIM2_CH1) ||
(ulDMASrcRequest == DMA_REQUEST_TIM4_CH3) ||
(ulDMASrcRequest == DMA_REQUEST_I2C2_RX) ||
(ulDMASrcRequest == DMA_REQUEST_TIM1_CH3) ||
(ulDMASrcRequest == DMA_REQUEST_TIM3_CH1) ||
(ulDMASrcRequest == DMA_REQUEST_TIM2_CH2) ||
(ulDMASrcRequest == DMA_REQUEST_TIM2_CH4) ||
(ulDMASrcRequest == DMA_REQUEST_I2C1_RX) ||
(ulDMASrcRequest == DMA_REQUEST_TIM5_CH4) ||
(ulDMASrcRequest == DMA_REQUEST_TIM8_CH3) ||
(ulDMASrcRequest == DMA_REQUEST_SPI3_RX) ||
(ulDMASrcRequest == DMA_REQUEST_I2S3_RX) ||
(ulDMASrcRequest == DMA_REQUEST_TIM8_CH4) ||
(ulDMASrcRequest == DMA_REQUEST_TIM5_CH3) ||
(ulDMASrcRequest == DMA_REQUEST_TIM8_CH1) ||
(ulDMASrcRequest == DMA_REQUEST_TIM5_CH2) ||
(ulDMASrcRequest == DMA_REQUEST_SDIO_RX) ||
(ulDMASrcRequest == DMA_REQUEST_ADC3_RX) ||
(ulDMASrcRequest == DMA_REQUEST_TIM8_CH2) ||
(ulDMASrcRequest == DMA_REQUEST_TIM5_CH1) ||
(ulDMASrcRequest == DMA_REQUEST_TIM1_CH2)
);
xASSERT((ulDMADestRequest == DMA_REQUEST_UART3_TX) ||
(ulDMADestRequest == DMA_REQUEST_TIM1_UP) ||
(ulDMADestRequest == xDMA_REQUEST_MEM) ||
(ulDMADestRequest == DMA_REQUEST_TIM3_UP) ||
(ulDMADestRequest == DMA_REQUEST_SPI1_TX) ||
(ulDMADestRequest == DMA_REQUEST_UART1_TX) ||
(ulDMADestRequest == DMA_REQUEST_TIM1_TRIG) ||
(ulDMADestRequest == DMA_REQUEST_TIM1_COM) ||
(ulDMADestRequest == DMA_REQUEST_I2C2_TX) ||
(ulDMADestRequest == DMA_REQUEST_TIM1_UP) ||
(ulDMADestRequest == DMA_REQUEST_SPI2_TX) ||
(ulDMADestRequest == DMA_REQUEST_I2S2_TX) ||
(ulDMADestRequest == DMA_REQUEST_TIM3_TRIG) ||
(ulDMADestRequest == DMA_REQUEST_I2C1_TX) ||
(ulDMADestRequest == DMA_REQUEST_UART2_TX) ||
(ulDMADestRequest == DMA_REQUEST_TIM4_UP) ||
(ulDMADestRequest == DMA_REQUEST_TIM5_TRIG) ||
(ulDMADestRequest == DMA_REQUEST_TIM8_UP) ||
(ulDMADestRequest == DMA_REQUEST_TIM8_TRIG) ||
(ulDMADestRequest == DMA_REQUEST_TIM8_COM) ||
(ulDMADestRequest == DMA_REQUEST_TIM5_UP) ||
(ulDMADestRequest == DMA_REQUEST_SPI3_TX) ||
(ulDMADestRequest == DMA_REQUEST_I2S3_TX) ||
(ulDMADestRequest == DMA_REQUEST_TIM6_UP) ||
(ulDMADestRequest == DMA_REQUEST_DAC_CH1) ||
(ulDMADestRequest == DMA_REQUEST_SDIO_TX) ||
(ulDMADestRequest == DMA_REQUEST_TIM7_UP) ||
(ulDMADestRequest == DMA_REQUEST_DAC_CH2) ||
(ulDMADestRequest == DMA_REQUEST_UART4_TX)
);
//
// STM32F1xx DMA support P to P
//
if((ulDMASrcRequest != xDMA_REQUEST_MEM) &&
(ulDMADestRequest != xDMA_REQUEST_MEM))
{
if(g_psDMAChannelAssignTable[DMA_CHANNEL(ulDMASrcRequest)].bChannelAssigned ==
xfalse)
{
g_psDMAChannelAssignTable[DMA_CHANNEL(ulDMASrcRequest)].bChannelAssigned =
xtrue;
xHWREG(DMA_ADDR(ulDMASrcRequest)) &=
~(DMA_CCR1_DIR | DMA_CCR1_MEM2MEM);
xHWREG(DMA_ADDR(ulDMASrcRequest)) |=
DMA_CCR1_DIR;
return g_psDMAChannelAssignTable[DMA_CHANNEL(ulDMASrcRequest)].ulChannelID;
}
else
{
return xDMA_CHANNEL_NOT_EXIST;
}
}
if((ulDMASrcRequest == xDMA_REQUEST_MEM) && (ulDMADestRequest & 0x00000100))
{
if(g_psDMAChannelAssignTable[DMA_CHANNEL(ulDMADestRequest)].bChannelAssigned ==
xfalse)
{
g_psDMAChannelAssignTable[DMA_CHANNEL(ulDMADestRequest)].bChannelAssigned =
xtrue;
xHWREG(DMA_ADDR(ulDMADestRequest)) &=
~(DMA_CCR1_DIR | DMA_CCR1_MEM2MEM);
xHWREG(DMA_ADDR(ulDMADestRequest)) |=
DMA_CCR1_DIR;
return g_psDMAChannelAssignTable[DMA_CHANNEL(ulDMADestRequest)].ulChannelID;
}
else
{
return xDMA_CHANNEL_NOT_EXIST;
}
}
if((ulDMADestRequest == xDMA_REQUEST_MEM) && (ulDMASrcRequest != xDMA_REQUEST_MEM) &&
!(ulDMASrcRequest & 0x00000100))
{
if(g_psDMAChannelAssignTable[DMA_CHANNEL(ulDMASrcRequest)].bChannelAssigned ==
xfalse)
{
g_psDMAChannelAssignTable[DMA_CHANNEL(ulDMASrcRequest)].bChannelAssigned =
xtrue;
xHWREG(DMA_ADDR(ulDMASrcRequest)) &= ~(DMA_CCR1_DIR | DMA_CCR1_MEM2MEM);
return g_psDMAChannelAssignTable[DMA_CHANNEL(ulDMASrcRequest)].ulChannelID;
}
else
{
return xDMA_CHANNEL_NOT_EXIST;
}
}
//
// Mem to Mem type
//
if((ulDMASrcRequest & xDMA_REQUEST_MEM) &&
(ulDMADestRequest & xDMA_REQUEST_MEM))
{
for(ulChannelID = 0;
g_psDMAChannelAssignTable[ulChannelID].ulChannelID != xDMA_CHANNEL_NOT_EXIST;
ulChannelID++)
{
if(g_psDMAChannelAssignTable[ulChannelID].bChannelAssigned == xfalse)
{
g_psDMAChannelAssignTable[ulChannelID].bChannelAssigned = xtrue;
break;
}
}
xHWREG(g_psDMAChannel[ulChannelID]) &= ~(DMA_CCR1_DIR | DMA_CCR1_MEM2MEM);
xHWREG(g_psDMAChannel[ulChannelID]) |= (DMA_CCR1_MEM2MEM);
return g_psDMAChannelAssignTable[ulChannelID].ulChannelID;
}
//
// when the src request is tx type, or dest request is rx type, assign false.
//
return xDMA_CHANNEL_NOT_EXIST;
}
.addr = 0xfe1f0064,
.chcr = CHCR_TX(XMIT_SZ_32BIT),
.mid_rid = 0xb5,
},
};
#define DMA_CHANNEL(a, b, c) \
{ \
.offset = a, \
.dmars = b, \
.dmars_bit = c, \
.chclr_offset = (0x220 - 0x20) + a \
}
static const struct sh_dmae_channel r8a7740_dmae_channels[] = {
DMA_CHANNEL(0x00, 0, 0),
DMA_CHANNEL(0x10, 0, 8),
DMA_CHANNEL(0x20, 4, 0),
DMA_CHANNEL(0x30, 4, 8),
DMA_CHANNEL(0x50, 8, 0),
DMA_CHANNEL(0x60, 8, 8),
};
static struct sh_dmae_pdata dma_platform_data = {
.slave = r8a7740_dmae_slaves,
.slave_num = ARRAY_SIZE(r8a7740_dmae_slaves),
.channel = r8a7740_dmae_channels,
.channel_num = ARRAY_SIZE(r8a7740_dmae_channels),
.ts_low_shift = TS_LOW_SHIFT,
.ts_low_mask = TS_LOW_BIT << TS_LOW_SHIFT,
.ts_high_shift = TS_HI_SHIFT,
namespace chip
{
#ifdef DISTORTOS_CHIP_SPI1_ENABLE
/*---------------------------------------------------------------------------------------------------------------------+
| SPI1
+---------------------------------------------------------------------------------------------------------------------*/
namespace
{
/**
* \brief Low-level chip initializer for SPI1
*
* This function is called before constructors for global and static objects via BIND_LOW_LEVEL_INITIALIZER().
*/
void spi1LowLevelInitializer()
{
#if defined(RCC_APB1ENR_SPI1EN)
RCC->APB1ENR |= RCC_APB1ENR_SPI1EN;
#elif defined(RCC_APB1ENR1_SPI1EN)
RCC->APB1ENR1 |= RCC_APB1ENR1_SPI1EN;
#elif defined(RCC_APB2ENR_SPI1EN)
RCC->APB2ENR |= RCC_APB2ENR_SPI1EN;
#else
#error "Unsupported bus for SPI1!"
#endif
}
BIND_LOW_LEVEL_INITIALIZER(50, spi1LowLevelInitializer);
/// raw SPI1 peripheral
const SpiPeripheral spi1Peripheral {SPI1_BASE};
} // namespace
#ifdef DISTORTOS_CHIP_SPI1_DMA_BASED
SpiMasterLowLevelDmaBased spi1
{
spi1Peripheral,
DMA_CHANNEL(DISTORTOS_CHIP_SPI1_RX_DMA, DISTORTOS_CHIP_SPI1_RX_DMA_CHANNEL),
DISTORTOS_CHIP_SPI1_RX_DMA_REQUEST,
DMA_CHANNEL(DISTORTOS_CHIP_SPI1_TX_DMA, DISTORTOS_CHIP_SPI1_TX_DMA_CHANNEL),
DISTORTOS_CHIP_SPI1_TX_DMA_REQUEST
};
#else // !def DISTORTOS_CHIP_SPI1_DMA_BASED
SpiMasterLowLevelInterruptBased spi1 {spi1Peripheral};
/**
* \brief SPI1 interrupt handler
*/
extern "C" void SPI1_IRQHandler()
{
spi1.interruptHandler();
}
#endif // !def DISTORTOS_CHIP_SPI1_DMA_BASED
#endif // def DISTORTOS_CHIP_SPI1_ENABLE
#ifdef DISTORTOS_CHIP_SPI2_ENABLE
/*---------------------------------------------------------------------------------------------------------------------+
| SPI2
+---------------------------------------------------------------------------------------------------------------------*/
namespace
{
/**
* \brief Low-level chip initializer for SPI2
*
* This function is called before constructors for global and static objects via BIND_LOW_LEVEL_INITIALIZER().
*/
void spi2LowLevelInitializer()
{
#if defined(RCC_APB1ENR_SPI2EN)
RCC->APB1ENR |= RCC_APB1ENR_SPI2EN;
#elif defined(RCC_APB1ENR1_SPI2EN)
RCC->APB1ENR1 |= RCC_APB1ENR1_SPI2EN;
#elif defined(RCC_APB2ENR_SPI2EN)
RCC->APB2ENR |= RCC_APB2ENR_SPI2EN;
#else
#error "Unsupported bus for SPI2!"
#endif
}
BIND_LOW_LEVEL_INITIALIZER(50, spi2LowLevelInitializer);
/// raw SPI2 peripheral
const SpiPeripheral spi2Peripheral {SPI2_BASE};
} // namespace
#ifdef DISTORTOS_CHIP_SPI2_DMA_BASED
SpiMasterLowLevelDmaBased spi2
{
spi2Peripheral,
DMA_CHANNEL(DISTORTOS_CHIP_SPI2_RX_DMA, DISTORTOS_CHIP_SPI2_RX_DMA_CHANNEL),
DISTORTOS_CHIP_SPI2_RX_DMA_REQUEST,
DMA_CHANNEL(DISTORTOS_CHIP_SPI2_TX_DMA, DISTORTOS_CHIP_SPI2_TX_DMA_CHANNEL),
DISTORTOS_CHIP_SPI2_TX_DMA_REQUEST
};
#else // !def DISTORTOS_CHIP_SPI2_DMA_BASED
SpiMasterLowLevelInterruptBased spi2 {spi2Peripheral};
/**
* \brief SPI2 interrupt handler
*/
extern "C" void SPI2_IRQHandler()
{
spi2.interruptHandler();
}
#endif // !def DISTORTOS_CHIP_SPI2_DMA_BASED
#endif // def DISTORTOS_CHIP_SPI2_ENABLE
#ifdef DISTORTOS_CHIP_SPI3_ENABLE
/*---------------------------------------------------------------------------------------------------------------------+
| SPI3
+---------------------------------------------------------------------------------------------------------------------*/
namespace
{
/**
* \brief Low-level chip initializer for SPI3
*
* This function is called before constructors for global and static objects via BIND_LOW_LEVEL_INITIALIZER().
*/
void spi3LowLevelInitializer()
{
#if defined(RCC_APB1ENR_SPI3EN)
RCC->APB1ENR |= RCC_APB1ENR_SPI3EN;
#elif defined(RCC_APB1ENR1_SPI3EN)
RCC->APB1ENR1 |= RCC_APB1ENR1_SPI3EN;
#elif defined(RCC_APB2ENR_SPI3EN)
RCC->APB2ENR |= RCC_APB2ENR_SPI3EN;
#else
#error "Unsupported bus for SPI3!"
#endif
}
BIND_LOW_LEVEL_INITIALIZER(50, spi3LowLevelInitializer);
/// raw SPI3 peripheral
const SpiPeripheral spi3Peripheral {SPI3_BASE};
} // namespace
#ifdef DISTORTOS_CHIP_SPI3_DMA_BASED
SpiMasterLowLevelDmaBased spi3
{
spi3Peripheral,
DMA_CHANNEL(DISTORTOS_CHIP_SPI3_RX_DMA, DISTORTOS_CHIP_SPI3_RX_DMA_CHANNEL),
DISTORTOS_CHIP_SPI3_RX_DMA_REQUEST,
DMA_CHANNEL(DISTORTOS_CHIP_SPI3_TX_DMA, DISTORTOS_CHIP_SPI3_TX_DMA_CHANNEL),
DISTORTOS_CHIP_SPI3_TX_DMA_REQUEST
};
#else // !def DISTORTOS_CHIP_SPI3_DMA_BASED
SpiMasterLowLevelInterruptBased spi3 {spi3Peripheral};
/**
* \brief SPI3 interrupt handler
*/
extern "C" void SPI3_IRQHandler()
{
spi3.interruptHandler();
}
#endif // !def DISTORTOS_CHIP_SPI3_DMA_BASED
#endif // def DISTORTOS_CHIP_SPI3_ENABLE
#ifdef DISTORTOS_CHIP_SPI4_ENABLE
/*---------------------------------------------------------------------------------------------------------------------+
| SPI4
+---------------------------------------------------------------------------------------------------------------------*/
namespace
{
/**
* \brief Low-level chip initializer for SPI4
*
* This function is called before constructors for global and static objects via BIND_LOW_LEVEL_INITIALIZER().
*/
void spi4LowLevelInitializer()
{
#if defined(RCC_APB1ENR_SPI4EN)
RCC->APB1ENR |= RCC_APB1ENR_SPI4EN;
#elif defined(RCC_APB1ENR1_SPI4EN)
RCC->APB1ENR1 |= RCC_APB1ENR1_SPI4EN;
#elif defined(RCC_APB2ENR_SPI4EN)
RCC->APB2ENR |= RCC_APB2ENR_SPI4EN;
#else
#error "Unsupported bus for SPI4!"
#endif
}
BIND_LOW_LEVEL_INITIALIZER(50, spi4LowLevelInitializer);
/// raw SPI4 peripheral
const SpiPeripheral spi4Peripheral {SPI4_BASE};
} // namespace
#ifdef DISTORTOS_CHIP_SPI4_DMA_BASED
SpiMasterLowLevelDmaBased spi4
{
spi4Peripheral,
DMA_CHANNEL(DISTORTOS_CHIP_SPI4_RX_DMA, DISTORTOS_CHIP_SPI4_RX_DMA_CHANNEL),
DISTORTOS_CHIP_SPI4_RX_DMA_REQUEST,
DMA_CHANNEL(DISTORTOS_CHIP_SPI4_TX_DMA, DISTORTOS_CHIP_SPI4_TX_DMA_CHANNEL),
DISTORTOS_CHIP_SPI4_TX_DMA_REQUEST
};
#else // !def DISTORTOS_CHIP_SPI4_DMA_BASED
SpiMasterLowLevelInterruptBased spi4 {spi4Peripheral};
/**
* \brief SPI4 interrupt handler
*/
extern "C" void SPI4_IRQHandler()
{
spi4.interruptHandler();
}
#endif // !def DISTORTOS_CHIP_SPI4_DMA_BASED
#endif // def DISTORTOS_CHIP_SPI4_ENABLE
#ifdef DISTORTOS_CHIP_SPI5_ENABLE
/*---------------------------------------------------------------------------------------------------------------------+
| SPI5
+---------------------------------------------------------------------------------------------------------------------*/
namespace
{
/**
* \brief Low-level chip initializer for SPI5
*
* This function is called before constructors for global and static objects via BIND_LOW_LEVEL_INITIALIZER().
*/
void spi5LowLevelInitializer()
{
#if defined(RCC_APB1ENR_SPI5EN)
RCC->APB1ENR |= RCC_APB1ENR_SPI5EN;
#elif defined(RCC_APB1ENR1_SPI5EN)
RCC->APB1ENR1 |= RCC_APB1ENR1_SPI5EN;
#elif defined(RCC_APB2ENR_SPI5EN)
RCC->APB2ENR |= RCC_APB2ENR_SPI5EN;
#else
#error "Unsupported bus for SPI5!"
#endif
}
BIND_LOW_LEVEL_INITIALIZER(50, spi5LowLevelInitializer);
/// raw SPI5 peripheral
const SpiPeripheral spi5Peripheral {SPI5_BASE};
} // namespace
#ifdef DISTORTOS_CHIP_SPI5_DMA_BASED
SpiMasterLowLevelDmaBased spi5
{
spi5Peripheral,
DMA_CHANNEL(DISTORTOS_CHIP_SPI5_RX_DMA, DISTORTOS_CHIP_SPI5_RX_DMA_CHANNEL),
DISTORTOS_CHIP_SPI5_RX_DMA_REQUEST,
DMA_CHANNEL(DISTORTOS_CHIP_SPI5_TX_DMA, DISTORTOS_CHIP_SPI5_TX_DMA_CHANNEL),
DISTORTOS_CHIP_SPI5_TX_DMA_REQUEST
};
#else // !def DISTORTOS_CHIP_SPI5_DMA_BASED
SpiMasterLowLevelInterruptBased spi5 {spi5Peripheral};
/**
* \brief SPI5 interrupt handler
*/
extern "C" void SPI5_IRQHandler()
{
spi5.interruptHandler();
}
#endif // !def DISTORTOS_CHIP_SPI5_DMA_BASED
#endif // def DISTORTOS_CHIP_SPI5_ENABLE
#ifdef DISTORTOS_CHIP_SPI6_ENABLE
/*---------------------------------------------------------------------------------------------------------------------+
| SPI6
+---------------------------------------------------------------------------------------------------------------------*/
namespace
{
/**
* \brief Low-level chip initializer for SPI6
*
* This function is called before constructors for global and static objects via BIND_LOW_LEVEL_INITIALIZER().
*/
void spi6LowLevelInitializer()
{
#if defined(RCC_APB1ENR_SPI6EN)
RCC->APB1ENR |= RCC_APB1ENR_SPI6EN;
#elif defined(RCC_APB1ENR1_SPI6EN)
RCC->APB1ENR1 |= RCC_APB1ENR1_SPI6EN;
#elif defined(RCC_APB2ENR_SPI6EN)
RCC->APB2ENR |= RCC_APB2ENR_SPI6EN;
#else
#error "Unsupported bus for SPI6!"
#endif
}
BIND_LOW_LEVEL_INITIALIZER(50, spi6LowLevelInitializer);
/// raw SPI6 peripheral
const SpiPeripheral spi6Peripheral {SPI6_BASE};
} // namespace
#ifdef DISTORTOS_CHIP_SPI6_DMA_BASED
SpiMasterLowLevelDmaBased spi6
{
spi6Peripheral,
DMA_CHANNEL(DISTORTOS_CHIP_SPI6_RX_DMA, DISTORTOS_CHIP_SPI6_RX_DMA_CHANNEL),
DISTORTOS_CHIP_SPI6_RX_DMA_REQUEST,
DMA_CHANNEL(DISTORTOS_CHIP_SPI6_TX_DMA, DISTORTOS_CHIP_SPI6_TX_DMA_CHANNEL),
DISTORTOS_CHIP_SPI6_TX_DMA_REQUEST
};
#else // !def DISTORTOS_CHIP_SPI6_DMA_BASED
SpiMasterLowLevelInterruptBased spi6 {spi6Peripheral};
/**
* \brief SPI6 interrupt handler
*/
extern "C" void SPI6_IRQHandler()
{
spi6.interruptHandler();
}
#endif // !def DISTORTOS_CHIP_SPI6_DMA_BASED
#endif // def DISTORTOS_CHIP_SPI6_ENABLE
} // namespace chip
* DMA M2P channels.
*
* On the EP93xx chip the following peripherals my be allocated to the 10
* Memory to Internal Peripheral (M2P) channels (5 transmit + 5 receive).
*
* I2S contains 3 Tx and 3 Rx DMA Channels
* AAC contains 3 Tx and 3 Rx DMA Channels
* UART1 contains 1 Tx and 1 Rx DMA Channels
* UART2 contains 1 Tx and 1 Rx DMA Channels
* UART3 contains 1 Tx and 1 Rx DMA Channels
* IrDA contains 1 Tx and 1 Rx DMA Channels
*
* Registers are mapped statically in ep93xx_map_io().
*/
static struct ep93xx_dma_chan_data ep93xx_dma_m2p_channels[] = {
DMA_CHANNEL("m2p0", EP93XX_DMA_BASE + 0x0000, IRQ_EP93XX_DMAM2P0),
DMA_CHANNEL("m2p1", EP93XX_DMA_BASE + 0x0040, IRQ_EP93XX_DMAM2P1),
DMA_CHANNEL("m2p2", EP93XX_DMA_BASE + 0x0080, IRQ_EP93XX_DMAM2P2),
DMA_CHANNEL("m2p3", EP93XX_DMA_BASE + 0x00c0, IRQ_EP93XX_DMAM2P3),
DMA_CHANNEL("m2p4", EP93XX_DMA_BASE + 0x0240, IRQ_EP93XX_DMAM2P4),
DMA_CHANNEL("m2p5", EP93XX_DMA_BASE + 0x0200, IRQ_EP93XX_DMAM2P5),
DMA_CHANNEL("m2p6", EP93XX_DMA_BASE + 0x02c0, IRQ_EP93XX_DMAM2P6),
DMA_CHANNEL("m2p7", EP93XX_DMA_BASE + 0x0280, IRQ_EP93XX_DMAM2P7),
DMA_CHANNEL("m2p8", EP93XX_DMA_BASE + 0x0340, IRQ_EP93XX_DMAM2P8),
DMA_CHANNEL("m2p9", EP93XX_DMA_BASE + 0x0300, IRQ_EP93XX_DMAM2P9),
};
static struct ep93xx_dma_platform_data ep93xx_dma_m2p_data = {
.channels = ep93xx_dma_m2p_channels,
.num_channels = ARRAY_SIZE(ep93xx_dma_m2p_channels),
};
static irqreturn_t dma_dwc_interrupt(int irq, void *hsdev_instance)
{
int chan;
u32 tfr_reg, err_reg;
unsigned long flags;
struct sata_dwc_device *hsdev =
(struct sata_dwc_device *)hsdev_instance;
struct ata_host *host = (struct ata_host *)hsdev->host;
struct ata_port *ap;
struct sata_dwc_device_port *hsdevp;
u8 tag = 0;
unsigned int port = 0;
spin_lock_irqsave(&host->lock, flags);
ap = host->ports[port];
hsdevp = HSDEVP_FROM_AP(ap);
tag = ap->link.active_tag;
tfr_reg = in_le32(&(host_pvt.sata_dma_regs->interrupt_status.tfr\
.low));
err_reg = in_le32(&(host_pvt.sata_dma_regs->interrupt_status.error\
.low));
dev_dbg(ap->dev, "eot=0x%08x err=0x%08x pending=%d active port=%d\n",
tfr_reg, err_reg, hsdevp->dma_pending[tag], port);
for (chan = 0; chan < DMA_NUM_CHANS; chan++) {
if (tfr_reg & DMA_CHANNEL(chan)) {
host_pvt.dma_interrupt_count++;
sata_dwc_clear_dmacr(hsdevp, tag);
if (hsdevp->dma_pending[tag] ==
SATA_DWC_DMA_PENDING_NONE) {
dev_err(ap->dev, "DMA not pending eot=0x%08x "
"err=0x%08x tag=0x%02x pending=%d\n",
tfr_reg, err_reg, tag,
hsdevp->dma_pending[tag]);
}
if ((host_pvt.dma_interrupt_count % 2) == 0)
sata_dwc_dma_xfer_complete(ap, 1);
out_le32(&(host_pvt.sata_dma_regs->interrupt_clear\
.tfr.low),
DMA_CHANNEL(chan));
}
if (err_reg & DMA_CHANNEL(chan)) {
dev_err(ap->dev, "error interrupt err_reg=0x%08x\n",
err_reg);
out_le32(&(host_pvt.sata_dma_regs->interrupt_clear\
.error.low),
DMA_CHANNEL(chan));
}
}
spin_unlock_irqrestore(&host->lock, flags);
return IRQ_HANDLED;
}
/*
* Function: dma_dwc_interrupt
* arguments: irq, dev_id, pt_regs
* returns channel number if available else -1
* Interrupt Handler for DW AHB SATA DMA
*/
static irqreturn_t dma_dwc_interrupt(int irq, void *hsdev_instance)
{
int chan;
u32 tfr_reg, err_reg;
unsigned long flags;
struct sata_dwc_device *hsdev = hsdev_instance;
struct ata_host *host = (struct ata_host *)hsdev->host;
struct ata_port *ap;
struct sata_dwc_device_port *hsdevp;
u8 tag = 0;
unsigned int port = 0;
spin_lock_irqsave(&host->lock, flags);
ap = host->ports[port];
hsdevp = HSDEVP_FROM_AP(ap);
tag = ap->link.active_tag;
tfr_reg = in_le32(&(host_pvt.sata_dma_regs->interrupt_status.tfr\
.low));
err_reg = in_le32(&(host_pvt.sata_dma_regs->interrupt_status.error\
.low));
dev_dbg(ap->dev, "eot=0x%08x err=0x%08x pending=%d active port=%d\n",
tfr_reg, err_reg, hsdevp->dma_pending[tag], port);
chan = host_pvt.dma_channel;
if (chan >= 0) {
/* Check for end-of-transfer interrupt. */
if (tfr_reg & DMA_CHANNEL(chan)) {
/*
* Each DMA command produces 2 interrupts. Only
* complete the command after both interrupts have been
* seen. (See sata_dwc_isr())
*/
host_pvt.dma_interrupt_count++;
sata_dwc_clear_dmacr(hsdevp, tag);
if (hsdevp->dma_pending[tag] ==
SATA_DWC_DMA_PENDING_NONE) {
dev_err(ap->dev, "DMA not pending eot=0x%08x "
"err=0x%08x tag=0x%02x pending=%d\n",
tfr_reg, err_reg, tag,
hsdevp->dma_pending[tag]);
}
if ((host_pvt.dma_interrupt_count % 2) == 0)
sata_dwc_dma_xfer_complete(ap, 1);
/* Clear the interrupt */
out_le32(&(host_pvt.sata_dma_regs->interrupt_clear\
.tfr.low),
DMA_CHANNEL(chan));
}
/* Check for error interrupt. */
if (err_reg & DMA_CHANNEL(chan)) {
/* TODO Need error handler ! */
dev_err(ap->dev, "error interrupt err_reg=0x%08x\n",
err_reg);
/* Clear the interrupt. */
out_le32(&(host_pvt.sata_dma_regs->interrupt_clear\
.error.low),
DMA_CHANNEL(chan));
}
}
spin_unlock_irqrestore(&host->lock, flags);
return IRQ_HANDLED;
}