248 lines
6.5 KiB
C
248 lines
6.5 KiB
C
/*
|
|
* (C) Copyright 2007-2013
|
|
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
|
|
* Jerry Wang <wangflord@allwinnertech.com>
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "usbc_i.h"
|
|
|
|
|
|
/*
|
|
***********************************************************************************
|
|
* USBC_Dma_Set_ChannalPara
|
|
*
|
|
* Description:
|
|
* 查询fifo是否为空
|
|
*
|
|
* Arguments:
|
|
* hUSB : input. USBC_open_otg获得的句柄, 记录了USBC所需要的一些关键数据
|
|
*
|
|
*
|
|
* Returns:
|
|
*
|
|
* note:
|
|
* 无
|
|
*
|
|
***********************************************************************************
|
|
*/
|
|
int USBC_Dma_Set_ChannalPara(__hdle hUSB, __u32 dma_chan, __u32 trans_dir, __u32 ep_type)
|
|
{
|
|
__usbc_otg_t *usbc_otg = (__usbc_otg_t *)hUSB;
|
|
uint reg_val;
|
|
|
|
if(usbc_otg == NULL)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
reg_val = readl((const volatile void __iomem *)(usbc_otg->base_addr + USBC_REG_o_DMA_CONFIG + 0x10 * dma_chan));
|
|
reg_val &= ~((1 << 4) | (0xf << 0));
|
|
reg_val |= ((trans_dir & 1) << 4);
|
|
reg_val |= ((ep_type & 0xf) << 0);
|
|
writel(reg_val, (volatile void __iomem *)(usbc_otg->base_addr + USBC_REG_o_DMA_CONFIG + 0x10 * dma_chan));
|
|
|
|
return 0;
|
|
}
|
|
/*
|
|
***********************************************************************************
|
|
* USBC_Dma_Set_PktLen
|
|
*
|
|
* Description:
|
|
* 查询fifo是否为空
|
|
*
|
|
* Arguments:
|
|
* hUSB : input. USBC_open_otg获得的句柄, 记录了USBC所需要的一些关键数据
|
|
*
|
|
*
|
|
* Returns:
|
|
*
|
|
* note:
|
|
* 无
|
|
*
|
|
***********************************************************************************
|
|
*/
|
|
int USBC_Dma_Set_PktLen(__hdle hUSB, __u32 dma_chan, __u32 pkt_len)
|
|
{
|
|
__usbc_otg_t *usbc_otg = (__usbc_otg_t *)hUSB;
|
|
uint reg_val;
|
|
|
|
if(usbc_otg == NULL)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
reg_val = readl((const volatile void __iomem *)(usbc_otg->base_addr + USBC_REG_o_DMA_CONFIG + 0x10 * dma_chan));
|
|
reg_val &= ~(0x7ff << 16);
|
|
//1650 burst len: datawidth is 32bit = 4byte,so burst len = pkt_len/4
|
|
//reg_val |= (((pkt_len/4) & 0x7ff) << 16);
|
|
|
|
//1667 burst len : datawidth is 8bit, so burst len = 1byte
|
|
reg_val |= (((pkt_len) & 0x7ff) << 16);
|
|
writel(reg_val, (volatile void __iomem *)(usbc_otg->base_addr + USBC_REG_o_DMA_CONFIG + 0x10 * dma_chan));
|
|
|
|
return 0;
|
|
}
|
|
/*
|
|
***********************************************************************************
|
|
* USBC_Dma_Start
|
|
*
|
|
* Description:
|
|
* 查询fifo是否为空
|
|
*
|
|
* Arguments:
|
|
* hUSB : input. USBC_open_otg获得的句柄, 记录了USBC所需要的一些关键数据
|
|
*
|
|
*
|
|
* Returns:
|
|
*
|
|
* note:
|
|
* 无
|
|
*
|
|
***********************************************************************************
|
|
*/
|
|
int USBC_Dma_Start(__hdle hUSB, __u32 dma_chan, __u32 addr, __u32 pkt_len)
|
|
{
|
|
__usbc_otg_t *usbc_otg = (__usbc_otg_t *)hUSB;
|
|
uint reg_val;
|
|
|
|
if(usbc_otg == NULL)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
if(pkt_len & 0x03)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
reg_val = readl((const volatile void __iomem *)(usbc_otg->base_addr + USBC_REG_o_DMA_ENABLE));
|
|
reg_val |= (1 << (dma_chan & 0xff));
|
|
writel(reg_val, (volatile void __iomem *)(usbc_otg->base_addr + USBC_REG_o_DMA_ENABLE));
|
|
|
|
writel(addr, (volatile void __iomem *)(usbc_otg->base_addr + USBC_REG_o_DMA_ADDR + 0x10 * dma_chan));
|
|
//1650 datawidth is 32 bit.so size=len/4
|
|
//writel(pkt_len/4, usbc_otg->base_addr + USBC_REG_o_DMA_SIZE + 0x10 * dma_chan);
|
|
|
|
//1667 datawidth is 8bit
|
|
writel(pkt_len, (volatile void __iomem *)(usbc_otg->base_addr + USBC_REG_o_DMA_SIZE + 0x10 * dma_chan));
|
|
|
|
reg_val = readl((const volatile void __iomem *)(usbc_otg->base_addr + USBC_REG_o_DMA_CONFIG + 0x10 * dma_chan));
|
|
reg_val |= (1U << 31);
|
|
|
|
writel(reg_val, (volatile void __iomem *)(usbc_otg->base_addr + USBC_REG_o_DMA_CONFIG + 0x10 * dma_chan));
|
|
|
|
return 0;
|
|
}
|
|
/*
|
|
***********************************************************************************
|
|
* USBC_Dma_Int_Stop
|
|
*
|
|
* Description:
|
|
* 查询fifo是否为空
|
|
*
|
|
* Arguments:
|
|
* hUSB : input. USBC_open_otg获得的句柄, 记录了USBC所需要的一些关键数据
|
|
*
|
|
*
|
|
* Returns:
|
|
*
|
|
* note:
|
|
* 无
|
|
*
|
|
***********************************************************************************
|
|
*/
|
|
int USBC_Dma_Int_Stop(__hdle hUSB, __u32 dma_chan)
|
|
{
|
|
__usbc_otg_t *usbc_otg = (__usbc_otg_t *)hUSB;
|
|
uint reg_val;
|
|
|
|
if(usbc_otg == NULL)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
reg_val = readl((const volatile void __iomem *)(usbc_otg->base_addr + USBC_REG_o_DMA_ENABLE));
|
|
reg_val &= ~(1 << (dma_chan & 0xff));
|
|
writel(reg_val, (volatile void __iomem *)(usbc_otg->base_addr + USBC_REG_o_DMA_ENABLE));
|
|
|
|
return 0;
|
|
}
|
|
/*
|
|
***********************************************************************************
|
|
* USBC_Dma_Int_Query
|
|
*
|
|
* Description:
|
|
* 查询fifo是否为空
|
|
*
|
|
* Arguments:
|
|
* hUSB : input. USBC_open_otg获得的句柄, 记录了USBC所需要的一些关键数据
|
|
*
|
|
*
|
|
* Returns:
|
|
*
|
|
* note:
|
|
* 无
|
|
*
|
|
***********************************************************************************
|
|
*/
|
|
int USBC_Dma_Int_Query(__hdle hUSB)
|
|
{
|
|
__usbc_otg_t *usbc_otg = (__usbc_otg_t *)hUSB;
|
|
|
|
if(usbc_otg == NULL)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
return readl((const volatile void __iomem *)(usbc_otg->base_addr + USBC_REG_o_DMA_STATUS));
|
|
}
|
|
/*
|
|
***********************************************************************************
|
|
* USBC_Dma_Int_Clear
|
|
*
|
|
* Description:
|
|
* 查询fifo是否为空
|
|
*
|
|
* Arguments:
|
|
* hUSB : input. USBC_open_otg获得的句柄, 记录了USBC所需要的一些关键数据
|
|
*
|
|
*
|
|
* Returns:
|
|
*
|
|
* note:
|
|
* 无
|
|
*
|
|
***********************************************************************************
|
|
*/
|
|
int USBC_Dma_Int_Clear(__hdle hUSB)
|
|
{
|
|
__usbc_otg_t *usbc_otg = (__usbc_otg_t *)hUSB;
|
|
|
|
if(usbc_otg == NULL)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
writel(0xff, (volatile void __iomem *)(usbc_otg->base_addr + USBC_REG_o_DMA_STATUS));
|
|
|
|
return 0;
|
|
}
|