/******************************************************************************
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*
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* Copyright(c) 2015 - 2018 Realtek Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*****************************************************************************/
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#define _RTL8822BS_IO_C_
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#include <drv_types.h> /* PADAPTER and etc. */
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#include <hal_data.h> /* HAL_DATA_TYPE */
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#include <rtw_sdio.h> /* rtw_sdio_write_cmd53() */
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#include <sdio_ops_linux.h> /* SDIO_ERR_VAL8 and etc. */
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#include "rtl8822bs.h" /* rtl8822bs_get_interrupt(), rtl8822bs_clear_interrupt() and etc. */
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#include "../../hal_halmac.h" /* rtw_halmac_sdio_get_rx_addr() */
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/*
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* For Core I/O API
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*/
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static u8 sdio_f0_read8(struct intf_hdl *pintfhdl, u32 addr)
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{
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struct dvobj_priv *d;
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u8 val = 0;
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u8 ret;
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d = pintfhdl->pintf_dev;
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ret = rtw_sdio_f0_read(d, addr, &val, 1);
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if (_FAIL == ret)
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RTW_ERR("%s: Read f0 register(0x%x) FAIL!\n",
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__FUNCTION__, addr);
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return val;
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}
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/*
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* Description:
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* Read from RX FIFO
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* Round read size to block size,
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* and make sure data transfer will be done in one command.
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*
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* Parameters:
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* d a pointer of dvobj_priv
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* addr not use
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* cnt size to write
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* mem buffer to write
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*
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* Return:
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* _SUCCESS(1) Success
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* _FAIL(0) Fail
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*/
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u32 rtl8822bs_read_port(struct dvobj_priv *d, u32 cnt, u8 *mem)
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{
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struct _ADAPTER *adapter;
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struct hal_com_data *hal;
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u32 rxaddr;
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void *buf;
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size_t buflen;
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u32 ret;
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adapter = dvobj_get_primary_adapter(d);
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hal = GET_HAL_DATA(adapter);
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rxaddr = rtw_halmac_sdio_get_rx_addr(d, &hal->SdioRxFIFOCnt);
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buf = mem;
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/* align size to guarantee I/O would be done in one command */
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buflen = rtw_sdio_cmd53_align_size(d, cnt);
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if (buflen != cnt) {
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buf = rtw_zmalloc(buflen);
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if (!buf)
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return _FAIL;
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}
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ret = rtw_sdio_read_cmd53(d, rxaddr, buf, buflen);
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if (buflen != cnt) {
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_rtw_memcpy(mem, buf, cnt);
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rtw_mfree(buf, buflen);
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}
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return ret;
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}
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/*
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* Description:
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* Read from RX FIFO
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* Round read size to block size,
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* and make sure data transfer will be done in one command.
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*
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* Parameters:
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* pintfhdl a pointer of intf_hdl
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* addr port ID
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* cnt size to read
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* mem struct recv_buf*
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*
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* Return:
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* _SUCCESS(1) Success
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* _FAIL(0) Fail
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*/
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static u32 sdio_read_port(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *mem)
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{
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struct recv_buf *recvbuf;
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recvbuf = (struct recv_buf *)mem;
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return rtl8822bs_read_port(pintfhdl->pintf_dev, cnt, recvbuf->pbuf);
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}
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/*
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* Description:
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* Write to TX FIFO
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* Align write size to block size,
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* and check enough FIFO size to write.
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*
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* Parameters:
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* d a pointer of dvobj_priv
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* addr not use
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* cnt size to write
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* mem buffer to write
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*
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* Return:
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* _SUCCESS(1) Success
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* _FAIL(0) Fail
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*/
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u32 rtl8822bs_write_port(struct dvobj_priv *d, u32 cnt, u8 *mem)
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{
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u32 txaddr, txsize;
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u32 ret = _FAIL;
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txaddr = rtw_halmac_sdio_get_tx_addr(d, mem, cnt);
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if (!txaddr)
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goto exit;
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/*
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* Align size to SDIO IC excpeted,
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* and this would be done by calling halmac function later.
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*/
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cnt = _RND4(cnt);
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/* align size to guarantee I/O would be done in one command */
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txsize = rtw_sdio_cmd53_align_size(d, cnt);
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ret = rtw_sdio_write_cmd53(d, txaddr, mem, txsize);
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exit:
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return ret;
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}
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/*
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* Description:
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* Write to TX FIFO
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* Align write size to block size,
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* and check enough FIFO size to write.
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*
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* Parameters:
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* pintfhdl a pointer of intf_hdl
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* addr not use
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* cnt size to write
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* mem struct xmit_buf*
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*
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* Return:
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* _SUCCESS(1) Success
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* _FAIL(0) Fail
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*/
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static u32 sdio_write_port(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *mem)
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{
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struct dvobj_priv *d;
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PADAPTER adapter;
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struct xmit_buf *xmitbuf;
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u32 txaddr, txsize;
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u32 ret = _FAIL;
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d = pintfhdl->pintf_dev;
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adapter = pintfhdl->padapter;
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xmitbuf = (struct xmit_buf *)mem;
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#if 0 /* who will call this when hardware not be initialized? */
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if (!rtw_is_hw_init_completed(adapter)) {
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RTW_INFO("%s [addr=0x%x cnt=%d] adapter->hw_init_completed == _FALSE\n",
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__FUNCTION__, addr, cnt);
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goto exit;
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}
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#endif
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ret = rtl8822bs_write_port(d, cnt, xmitbuf->pdata);
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rtw_sctx_done_err(&xmitbuf->sctx,
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(_FAIL == ret) ? RTW_SCTX_DONE_WRITE_PORT_ERR : RTW_SCTX_DONE_SUCCESS);
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return ret;
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}
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void sdio_set_intf_ops(PADAPTER adapter, struct _io_ops *pops)
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{
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pops->_read8 = rtw_halmac_read8;
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pops->_read16 = rtw_halmac_read16;
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pops->_read32 = rtw_halmac_read32;
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pops->_read_mem = rtw_halmac_read_mem;
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pops->_read_port = sdio_read_port;
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pops->_write8 = rtw_halmac_write8;
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pops->_write16 = rtw_halmac_write16;
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pops->_write32 = rtw_halmac_write32;
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pops->_writeN = NULL;
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pops->_write_mem = NULL;
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pops->_write_port = sdio_write_port;
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pops->_sd_f0_read8 = sdio_f0_read8;
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#ifdef CONFIG_SDIO_INDIRECT_ACCESS
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pops->_sd_iread8 = rtw_halmac_iread8;
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pops->_sd_iread16 = rtw_halmac_iread16;
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pops->_sd_iread32 = rtw_halmac_iread32;
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pops->_sd_iwrite8 = rtw_halmac_write8;
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pops->_sd_iwrite16 = rtw_halmac_write16;
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pops->_sd_iwrite32 = rtw_halmac_write32;
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#endif /* CONFIG_SDIO_INDIRECT_ACCESS */
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}
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static struct recv_buf *sd_recv_rxfifo(PADAPTER adapter, u32 size)
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{
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struct dvobj_priv *d;
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struct recv_priv *recvpriv;
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struct recv_buf *recvbuf;
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u32 readsz, bufsz;
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u8 *rbuf;
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_pkt *pkt;
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s32 ret;
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d = adapter_to_dvobj(adapter);
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/*
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* Patch for some SDIO Host 4 bytes issue
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* ex. RK3188
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*/
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readsz = RND4(size);
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/* round to block size */
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bufsz = rtw_sdio_cmd53_align_size(d, readsz);
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/* 1. alloc recvbuf */
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recvpriv = &adapter->recvpriv;
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recvbuf = rtw_dequeue_recvbuf(&recvpriv->free_recv_buf_queue);
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if (recvbuf == NULL) {
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#ifndef CONFIG_RECV_THREAD_MODE
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RTW_WARN("%s:alloc recvbuf FAIL!\n", __FUNCTION__);
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#endif /* !CONFIG_RECV_THREAD_MODE */
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return NULL;
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}
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/* 2. alloc skb */
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pkt = rtl8822bs_alloc_recvbuf_skb(recvbuf, bufsz);
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if (!pkt) {
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RTW_ERR("%s: alloc_skb fail! alloc=%d read=%d\n", __FUNCTION__, bufsz, size);
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rtw_enqueue_recvbuf(recvbuf, &recvpriv->free_recv_buf_queue);
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return NULL;
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}
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/* 3. read data from rxfifo */
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rbuf = skb_put(pkt, size);
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ret = rtl8822bs_read_port(d, bufsz, rbuf);
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if (_FAIL == ret) {
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RTW_ERR("%s: read port FAIL!\n", __FUNCTION__);
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rtl8822bs_free_recvbuf_skb(recvbuf);
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rtw_enqueue_recvbuf(recvbuf, &recvpriv->free_recv_buf_queue);
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return NULL;
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}
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/* 4. init recvbuf */
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recvbuf->len = pkt->len;
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recvbuf->phead = pkt->head;
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recvbuf->pdata = pkt->data;
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recvbuf->ptail = skb_tail_pointer(pkt);
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recvbuf->pend = skb_end_pointer(pkt);
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return recvbuf;
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}
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#ifdef CONFIG_RECV_THREAD_MODE
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static u32 sdio_recv_and_drop(PADAPTER adapter, u32 size)
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{
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struct dvobj_priv *d;
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u32 readsz, bufsz;
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u8 *rbuf;
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s32 ret = _SUCCESS;
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d = adapter_to_dvobj(adapter);
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/*
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* Patch for some SDIO Host 4 bytes issue
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* ex. RK3188
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*/
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readsz = RND4(size);
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/* round to block size */
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bufsz = rtw_sdio_cmd53_align_size(d, readsz);
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rbuf = rtw_zmalloc(bufsz);
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if (NULL == rbuf) {
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ret = _FAIL;
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goto _exit;
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}
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ret = rtl8822bs_read_port(d, bufsz, rbuf);
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if (_FAIL == ret)
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RTW_ERR("%s: read port FAIL!\n", __FUNCTION__);
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if (NULL != rbuf)
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rtw_mfree(rbuf, bufsz);
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_exit:
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return ret;
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}
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#endif
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void sd_int_dpc(PADAPTER adapter)
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{
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PHAL_DATA_TYPE phal;
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struct dvobj_priv *dvobj;
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struct pwrctrl_priv *pwrctl;
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phal = GET_HAL_DATA(adapter);
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dvobj = adapter_to_dvobj(adapter);
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pwrctl = dvobj_to_pwrctl(dvobj);
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#ifdef CONFIG_SDIO_TX_ENABLE_AVAL_INT
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if (phal->sdio_hisr & BIT_SDIO_AVAL_8822B)
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_rtw_up_sema(&adapter->xmitpriv.xmit_sema);
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#endif /* CONFIG_SDIO_TX_ENABLE_AVAL_INT */
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if (phal->sdio_hisr & BIT_SDIO_CPWM1_8822B) {
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struct reportpwrstate_parm report;
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#ifdef CONFIG_LPS_RPWM_TIMER
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_cancel_timer_ex(&pwrctl->pwr_rpwm_timer);
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#endif /* CONFIG_LPS_RPWM_TIMER */
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report.state = rtw_read8(adapter, REG_SDIO_HCPWM1_V2_8822B);
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#ifdef CONFIG_LPS_LCLK
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_set_workitem(&(pwrctl->cpwm_event));
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#endif /* CONFIG_LPS_LCLK */
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}
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if (phal->sdio_hisr & BIT_SDIO_TXERR_8822B) {
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u32 status;
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u32 addr;
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addr = REG_TXDMA_STATUS_8822B;
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status = rtw_read32(adapter, addr);
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rtw_write32(adapter, addr, status);
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RTW_INFO("%s: SDIO_HISR_TXERR (0x%08x)\n", __FUNCTION__, status);
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}
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if (phal->sdio_hisr & BIT_SDIO_TXBCNOK_8822B)
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RTW_INFO("%s: SDIO_HISR_TXBCNOK\n", __FUNCTION__);
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if (phal->sdio_hisr & BIT_SDIO_TXBCNERR_8822B)
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RTW_INFO("%s: SDIO_HISR_TXBCNERR\n", __FUNCTION__);
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if (phal->sdio_hisr & BIT_SDIO_RXFOVW_8822B)
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RTW_INFO("%s: Rx Overflow\n", __FUNCTION__);
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if (phal->sdio_hisr & BIT_SDIO_RXERR_8822B)
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RTW_INFO("%s: Rx Error\n", __FUNCTION__);
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if (phal->sdio_hisr & BIT_RX_REQUEST_8822B) {
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struct recv_buf *precvbuf;
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int rx_fail_time = 0;
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u16 rx_len;
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/* No need to write 1 clear for RX_REQUEST */
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phal->sdio_hisr ^= BIT_RX_REQUEST_8822B;
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rx_len = phal->SdioRxFIFOSize;
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do {
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if (!rx_len)
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break;
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precvbuf = sd_recv_rxfifo(adapter, rx_len);
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if (precvbuf) {
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rtl8822bs_rxhandler(adapter, precvbuf);
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} else {
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rx_fail_time++;
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#ifdef CONFIG_RECV_THREAD_MODE
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if (rx_fail_time >= 10) {
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if (_FAIL == sdio_recv_and_drop(adapter, rx_len))
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break;
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rx_fail_time = 0;
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} else {
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rtw_msleep_os(1);
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continue;
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}
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#else /* !CONFIG_RECV_THREAD_MODE */
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RTW_WARN("%s: recv fail!(time=%d)\n", __FUNCTION__, rx_fail_time);
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if (rx_fail_time >= 10)
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break;
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#endif /* !CONFIG_RECV_THREAD_MODE */
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}
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rx_len = 0;
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rtl8822bs_get_interrupt(adapter, NULL, &rx_len);
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} while (1);
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if (rx_fail_time == 10)
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RTW_ERR("%s: exit because recv failed more than 10 times!\n", __FUNCTION__);
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}
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}
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void sd_int_hdl(PADAPTER adapter)
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{
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PHAL_DATA_TYPE phal;
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u8 pwr;
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if (RTW_CANNOT_RUN(adapter))
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return;
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phal = GET_HAL_DATA(adapter);
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rtw_hal_get_hwreg(adapter, HW_VAR_APFM_ON_MAC, &pwr);
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if (pwr != _TRUE) {
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RTW_WARN("%s: unexpected interrupt!\n", __FUNCTION__);
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return;
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}
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rtl8822bs_get_interrupt(adapter, &phal->sdio_hisr, &phal->SdioRxFIFOSize);
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if (phal->sdio_hisr & phal->sdio_himr) {
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phal->sdio_hisr &= phal->sdio_himr;
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sd_int_dpc(adapter);
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rtl8822bs_clear_interrupt(adapter, phal->sdio_hisr);
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} else {
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RTW_INFO("%s: HISR(0x%08x) and HIMR(0x%08x) no match!\n",
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__FUNCTION__, phal->sdio_hisr, phal->sdio_himr);
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}
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}
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#if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN)
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u8 rtw_hal_enable_cpwm2(_adapter *adapter)
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{
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rtl8822bs_disable_interrupt_but_cpwm2(adapter);
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return _SUCCESS;
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}
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u8 RecvOnePkt(PADAPTER adapter)
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{
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struct recv_buf *precvbuf;
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struct dvobj_priv *psddev;
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PSDIO_DATA psdio_data;
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PHAL_DATA_TYPE phal;
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struct sdio_func *func;
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u8 res = _TRUE;
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u32 len = 0;
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if (adapter == NULL) {
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RTW_ERR("%s: adapter is NULL!\n", __func__);
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return _FALSE;
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}
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psddev = adapter->dvobj;
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psdio_data = &psddev->intf_data;
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func = psdio_data->func;
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phal = GET_HAL_DATA(adapter);
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rtl8822bs_get_interrupt(adapter, &phal->sdio_hisr,
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&phal->SdioRxFIFOSize);
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len = phal->SdioRxFIFOSize;
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RTW_DBG("+%s: hisr: %08x size=%d+\n",
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__func__, phal->sdio_hisr, phal->SdioRxFIFOSize);
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if (len) {
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sdio_claim_host(func);
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precvbuf = sd_recv_rxfifo(adapter, len);
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if (precvbuf)
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rtl8822bs_rxhandler(adapter, precvbuf);
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else
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res = _FALSE;
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sdio_release_host(func);
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}
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return res;
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}
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#endif /* CONFIG_WOWLAN */
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