472 lines
18 KiB
C
472 lines
18 KiB
C
/*
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* Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _DXE_H_
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#define _DXE_H_
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#include "wcn36xx.h"
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/*
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TX_LOW = DMA0
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TX_HIGH = DMA4
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RX_LOW = DMA1
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RX_HIGH = DMA3
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H2H_TEST_RX_TX = DMA2
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*/
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/* DXE registers */
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#define WCN36XX_DXE_MEM_REG 0
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#define WCN36XX_CCU_DXE_INT_SELECT_RIVA 0x310
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#define WCN36XX_CCU_DXE_INT_SELECT_PRONTO 0x10dc
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/* Descriptor valid */
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#define WCN36xx_DXE_CTRL_VLD BIT(0)
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/* End of packet */
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#define WCN36xx_DXE_CTRL_EOP BIT(3)
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/* BD handling bit */
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#define WCN36xx_DXE_CTRL_BDH BIT(4)
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/* Source is a queue */
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#define WCN36xx_DXE_CTRL_SIQ BIT(5)
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/* Destination is a queue */
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#define WCN36xx_DXE_CTRL_DIQ BIT(6)
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/* Pointer address is a queue */
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#define WCN36xx_DXE_CTRL_PIQ BIT(7)
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/* Release PDU when done */
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#define WCN36xx_DXE_CTRL_PDU_REL BIT(8)
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/* STOP channel processing */
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#define WCN36xx_DXE_CTRL_STOP BIT(16)
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/* INT on descriptor done */
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#define WCN36xx_DXE_CTRL_INT BIT(17)
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/* Endian byte swap enable */
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#define WCN36xx_DXE_CTRL_SWAP BIT(20)
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/* Master endianness */
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#define WCN36xx_DXE_CTRL_ENDIANNESS BIT(21)
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/* Transfer type */
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#define WCN36xx_DXE_CTRL_XTYPE_SHIFT 1
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#define WCN36xx_DXE_CTRL_XTYPE_MASK GENMASK(2, WCN36xx_DXE_CTRL_XTYPE_SHIFT)
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#define WCN36xx_DXE_CTRL_XTYPE_SET(x) ((x) << WCN36xx_DXE_CTRL_XTYPE_SHIFT)
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/* BMU Threshold select */
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#define WCN36xx_DXE_CTRL_BTHLD_SEL_SHIFT 9
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#define WCN36xx_DXE_CTRL_BTHLD_SEL_MASK GENMASK(12, WCN36xx_DXE_CTRL_BTHLD_SEL_SHIFT)
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#define WCN36xx_DXE_CTRL_BTHLD_SEL_SET(x) ((x) << WCN36xx_DXE_CTRL_BTHLD_SEL_SHIFT)
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/* Priority */
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#define WCN36xx_DXE_CTRL_PRIO_SHIFT 13
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#define WCN36xx_DXE_CTRL_PRIO_MASK GENMASK(15, WCN36xx_DXE_CTRL_PRIO_SHIFT)
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#define WCN36xx_DXE_CTRL_PRIO_SET(x) ((x) << WCN36xx_DXE_CTRL_PRIO_SHIFT)
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/* BD Template index */
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#define WCN36xx_DXE_CTRL_BDT_IDX_SHIFT 18
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#define WCN36xx_DXE_CTRL_BDT_IDX_MASK GENMASK(19, WCN36xx_DXE_CTRL_BDT_IDX_SHIFT)
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#define WCN36xx_DXE_CTRL_BDT_IDX_SET(x) ((x) << WCN36xx_DXE_CTRL_BDT_IDX_SHIFT)
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/* Transfer types: */
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/* Host to host */
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#define WCN36xx_DXE_XTYPE_H2H (0)
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/* Host to BMU */
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#define WCN36xx_DXE_XTYPE_H2B (2)
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/* BMU to host */
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#define WCN36xx_DXE_XTYPE_B2H (3)
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#define WCN36XX_DXE_CTRL_TX_L (WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \
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WCN36xx_DXE_CTRL_DIQ | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(5) | \
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WCN36xx_DXE_CTRL_PRIO_SET(4) | WCN36xx_DXE_CTRL_INT | \
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WCN36xx_DXE_CTRL_SWAP | WCN36xx_DXE_CTRL_ENDIANNESS)
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#define WCN36XX_DXE_CTRL_TX_H (WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \
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WCN36xx_DXE_CTRL_DIQ | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(7) | \
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WCN36xx_DXE_CTRL_PRIO_SET(6) | WCN36xx_DXE_CTRL_INT | \
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WCN36xx_DXE_CTRL_SWAP | WCN36xx_DXE_CTRL_ENDIANNESS)
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#define WCN36XX_DXE_CTRL_RX_L (WCN36xx_DXE_CTRL_VLD | \
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WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_B2H) | \
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WCN36xx_DXE_CTRL_EOP | WCN36xx_DXE_CTRL_SIQ | \
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WCN36xx_DXE_CTRL_PDU_REL | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(6) | \
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WCN36xx_DXE_CTRL_PRIO_SET(5) | WCN36xx_DXE_CTRL_INT | \
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WCN36xx_DXE_CTRL_SWAP)
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#define WCN36XX_DXE_CTRL_RX_H (WCN36xx_DXE_CTRL_VLD | \
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WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_B2H) | \
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WCN36xx_DXE_CTRL_EOP | WCN36xx_DXE_CTRL_SIQ | \
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WCN36xx_DXE_CTRL_PDU_REL | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(8) | \
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WCN36xx_DXE_CTRL_PRIO_SET(6) | WCN36xx_DXE_CTRL_INT | \
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WCN36xx_DXE_CTRL_SWAP)
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#define WCN36XX_DXE_CTRL_TX_H_BD (WCN36xx_DXE_CTRL_VLD | \
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WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \
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WCN36xx_DXE_CTRL_DIQ | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(7) | \
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WCN36xx_DXE_CTRL_PRIO_SET(6) | WCN36xx_DXE_CTRL_SWAP | \
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WCN36xx_DXE_CTRL_ENDIANNESS)
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#define WCN36XX_DXE_CTRL_TX_H_SKB (WCN36xx_DXE_CTRL_VLD | \
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WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \
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WCN36xx_DXE_CTRL_EOP | WCN36xx_DXE_CTRL_DIQ | \
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WCN36xx_DXE_CTRL_BTHLD_SEL_SET(7) | WCN36xx_DXE_CTRL_PRIO_SET(6) | \
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WCN36xx_DXE_CTRL_INT | WCN36xx_DXE_CTRL_SWAP | \
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WCN36xx_DXE_CTRL_ENDIANNESS)
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#define WCN36XX_DXE_CTRL_TX_L_BD (WCN36xx_DXE_CTRL_VLD | \
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WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \
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WCN36xx_DXE_CTRL_DIQ | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(5) | \
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WCN36xx_DXE_CTRL_PRIO_SET(4) | WCN36xx_DXE_CTRL_SWAP | \
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WCN36xx_DXE_CTRL_ENDIANNESS)
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#define WCN36XX_DXE_CTRL_TX_L_SKB (WCN36xx_DXE_CTRL_VLD | \
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WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \
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WCN36xx_DXE_CTRL_EOP | WCN36xx_DXE_CTRL_DIQ | \
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WCN36xx_DXE_CTRL_BTHLD_SEL_SET(5) | WCN36xx_DXE_CTRL_PRIO_SET(4) | \
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WCN36xx_DXE_CTRL_INT | WCN36xx_DXE_CTRL_SWAP | \
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WCN36xx_DXE_CTRL_ENDIANNESS)
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/* TODO This must calculated properly but not hardcoded */
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#define WCN36XX_DXE_WQ_TX_L 0x17
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#define WCN36XX_DXE_WQ_TX_H 0x17
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#define WCN36XX_DXE_WQ_RX_L 0xB
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#define WCN36XX_DXE_WQ_RX_H 0x4
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/* Channel enable or restart */
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#define WCN36xx_DXE_CH_CTRL_EN BIT(0)
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/* End of packet bit */
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#define WCN36xx_DXE_CH_CTRL_EOP BIT(3)
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/* BD Handling bit */
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#define WCN36xx_DXE_CH_CTRL_BDH BIT(4)
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/* Source is queue */
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#define WCN36xx_DXE_CH_CTRL_SIQ BIT(5)
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/* Destination is queue */
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#define WCN36xx_DXE_CH_CTRL_DIQ BIT(6)
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/* Pointer descriptor is queue */
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#define WCN36xx_DXE_CH_CTRL_PIQ BIT(7)
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/* Relase PDU when done */
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#define WCN36xx_DXE_CH_CTRL_PDU_REL BIT(8)
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/* Stop channel processing */
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#define WCN36xx_DXE_CH_CTRL_STOP BIT(16)
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/* Enable external descriptor interrupt */
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#define WCN36xx_DXE_CH_CTRL_INE_ED BIT(17)
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/* Enable channel interrupt on errors */
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#define WCN36xx_DXE_CH_CTRL_INE_ERR BIT(18)
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/* Enable Channel interrupt when done */
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#define WCN36xx_DXE_CH_CTRL_INE_DONE BIT(19)
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/* External descriptor enable */
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#define WCN36xx_DXE_CH_CTRL_EDEN BIT(20)
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/* Wait for valid bit */
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#define WCN36xx_DXE_CH_CTRL_EDVEN BIT(21)
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/* Endianness is little endian*/
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#define WCN36xx_DXE_CH_CTRL_ENDIANNESS BIT(26)
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/* Abort transfer */
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#define WCN36xx_DXE_CH_CTRL_ABORT BIT(27)
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/* Long descriptor format */
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#define WCN36xx_DXE_CH_CTRL_DFMT BIT(28)
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/* Endian byte swap enable */
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#define WCN36xx_DXE_CH_CTRL_SWAP BIT(31)
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/* Transfer type */
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#define WCN36xx_DXE_CH_CTRL_XTYPE_SHIFT 1
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#define WCN36xx_DXE_CH_CTRL_XTYPE_MASK GENMASK(2, WCN36xx_DXE_CH_CTRL_XTYPE_SHIFT)
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#define WCN36xx_DXE_CH_CTRL_XTYPE_SET(x) ((x) << WCN36xx_DXE_CH_CTRL_XTYPE_SHIFT)
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/* Channel BMU Threshold select */
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#define WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SHIFT 9
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#define WCN36xx_DXE_CH_CTRL_BTHLD_SEL_MASK GENMASK(12, WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SHIFT)
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#define WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SET(x) ((x) << WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SHIFT)
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/* Channel Priority */
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#define WCN36xx_DXE_CH_CTRL_PRIO_SHIFT 13
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#define WCN36xx_DXE_CH_CTRL_PRIO_MASK GENMASK(15, WCN36xx_DXE_CH_CTRL_PRIO_SHIFT)
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#define WCN36xx_DXE_CH_CTRL_PRIO_SET(x) ((x) << WCN36xx_DXE_CH_CTRL_PRIO_SHIFT)
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/* Counter select */
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#define WCN36xx_DXE_CH_CTRL_SEL_SHIFT 22
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#define WCN36xx_DXE_CH_CTRL_SEL_MASK GENMASK(25, WCN36xx_DXE_CH_CTRL_SEL_SHIFT)
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#define WCN36xx_DXE_CH_CTRL_SEL_SET(x) ((x) << WCN36xx_DXE_CH_CTRL_SEL_SHIFT)
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/* Channel BD template index */
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#define WCN36xx_DXE_CH_CTRL_BDT_IDX_SHIFT 29
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#define WCN36xx_DXE_CH_CTRL_BDT_IDX_MASK GENMASK(30, WCN36xx_DXE_CH_CTRL_BDT_IDX_SHIFT)
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#define WCN36xx_DXE_CH_CTRL_BDT_IDX_SET(x) ((x) << WCN36xx_DXE_CH_CTRL_BDT_IDX_SHIFT)
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/* DXE default control register values */
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#define WCN36XX_DXE_CH_DEFAULT_CTL_RX_L (WCN36xx_DXE_CH_CTRL_EN | \
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WCN36xx_DXE_CH_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_B2H) | \
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WCN36xx_DXE_CH_CTRL_EOP | WCN36xx_DXE_CH_CTRL_SIQ | \
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WCN36xx_DXE_CH_CTRL_PDU_REL | WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SET(6) | \
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WCN36xx_DXE_CH_CTRL_PRIO_SET(5) | WCN36xx_DXE_CH_CTRL_INE_ED | \
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WCN36xx_DXE_CH_CTRL_INE_ERR | WCN36xx_DXE_CH_CTRL_INE_DONE | \
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WCN36xx_DXE_CH_CTRL_EDEN | WCN36xx_DXE_CH_CTRL_EDVEN | \
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WCN36xx_DXE_CH_CTRL_SEL_SET(1) | WCN36xx_DXE_CH_CTRL_ENDIANNESS | \
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WCN36xx_DXE_CH_CTRL_SWAP)
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#define WCN36XX_DXE_CH_DEFAULT_CTL_RX_H (WCN36xx_DXE_CH_CTRL_EN | \
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WCN36xx_DXE_CH_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_B2H) | \
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WCN36xx_DXE_CH_CTRL_EOP | WCN36xx_DXE_CH_CTRL_SIQ | \
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WCN36xx_DXE_CH_CTRL_PDU_REL | WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SET(8) | \
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WCN36xx_DXE_CH_CTRL_PRIO_SET(6) | WCN36xx_DXE_CH_CTRL_INE_ED | \
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WCN36xx_DXE_CH_CTRL_INE_ERR | WCN36xx_DXE_CH_CTRL_INE_DONE | \
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WCN36xx_DXE_CH_CTRL_EDEN | WCN36xx_DXE_CH_CTRL_EDVEN | \
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WCN36xx_DXE_CH_CTRL_SEL_SET(3) | WCN36xx_DXE_CH_CTRL_ENDIANNESS | \
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WCN36xx_DXE_CH_CTRL_SWAP)
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#define WCN36XX_DXE_CH_DEFAULT_CTL_TX_H (WCN36xx_DXE_CH_CTRL_EN | \
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WCN36xx_DXE_CH_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \
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WCN36xx_DXE_CH_CTRL_EOP | WCN36xx_DXE_CH_CTRL_DIQ | \
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WCN36xx_DXE_CH_CTRL_PDU_REL | WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SET(7) | \
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WCN36xx_DXE_CH_CTRL_PRIO_SET(6) | WCN36xx_DXE_CH_CTRL_INE_ED | \
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WCN36xx_DXE_CH_CTRL_INE_ERR | WCN36xx_DXE_CH_CTRL_INE_DONE | \
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WCN36xx_DXE_CH_CTRL_EDEN | WCN36xx_DXE_CH_CTRL_EDVEN | \
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WCN36xx_DXE_CH_CTRL_SEL_SET(4) | WCN36xx_DXE_CH_CTRL_ENDIANNESS | \
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WCN36xx_DXE_CH_CTRL_SWAP)
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#define WCN36XX_DXE_CH_DEFAULT_CTL_TX_L (WCN36xx_DXE_CH_CTRL_EN | \
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WCN36xx_DXE_CH_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \
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WCN36xx_DXE_CH_CTRL_EOP | WCN36xx_DXE_CH_CTRL_DIQ | \
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WCN36xx_DXE_CH_CTRL_PDU_REL | WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SET(5) | \
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WCN36xx_DXE_CH_CTRL_PRIO_SET(4) | WCN36xx_DXE_CH_CTRL_INE_ED | \
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WCN36xx_DXE_CH_CTRL_INE_ERR | WCN36xx_DXE_CH_CTRL_INE_DONE | \
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WCN36xx_DXE_CH_CTRL_EDEN | WCN36xx_DXE_CH_CTRL_EDVEN | \
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WCN36xx_DXE_CH_CTRL_SEL_SET(0) | WCN36xx_DXE_CH_CTRL_ENDIANNESS | \
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WCN36xx_DXE_CH_CTRL_SWAP)
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/* Common DXE registers */
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#define WCN36XX_DXE_MEM_CSR (WCN36XX_DXE_MEM_REG + 0x00)
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#define WCN36XX_DXE_REG_CSR_RESET (WCN36XX_DXE_MEM_REG + 0x00)
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#define WCN36XX_DXE_ENCH_ADDR (WCN36XX_DXE_MEM_REG + 0x04)
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#define WCN36XX_DXE_REG_CH_EN (WCN36XX_DXE_MEM_REG + 0x08)
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#define WCN36XX_DXE_REG_CH_DONE (WCN36XX_DXE_MEM_REG + 0x0C)
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#define WCN36XX_DXE_REG_CH_ERR (WCN36XX_DXE_MEM_REG + 0x10)
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#define WCN36XX_DXE_INT_MASK_REG (WCN36XX_DXE_MEM_REG + 0x18)
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#define WCN36XX_DXE_INT_SRC_RAW_REG (WCN36XX_DXE_MEM_REG + 0x20)
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/* #define WCN36XX_DXE_INT_CH6_MASK 0x00000040 */
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/* #define WCN36XX_DXE_INT_CH5_MASK 0x00000020 */
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#define WCN36XX_DXE_INT_CH4_MASK 0x00000010
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#define WCN36XX_DXE_INT_CH3_MASK 0x00000008
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/* #define WCN36XX_DXE_INT_CH2_MASK 0x00000004 */
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#define WCN36XX_DXE_INT_CH1_MASK 0x00000002
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#define WCN36XX_DXE_INT_CH0_MASK 0x00000001
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#define WCN36XX_DXE_0_INT_CLR (WCN36XX_DXE_MEM_REG + 0x30)
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#define WCN36XX_DXE_0_INT_ED_CLR (WCN36XX_DXE_MEM_REG + 0x34)
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#define WCN36XX_DXE_0_INT_DONE_CLR (WCN36XX_DXE_MEM_REG + 0x38)
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#define WCN36XX_DXE_0_INT_ERR_CLR (WCN36XX_DXE_MEM_REG + 0x3C)
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#define WCN36XX_CH_STAT_INT_DONE_MASK 0x00008000
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#define WCN36XX_CH_STAT_INT_ERR_MASK 0x00004000
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#define WCN36XX_CH_STAT_INT_ED_MASK 0x00002000
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#define WCN36XX_DXE_0_CH0_STATUS (WCN36XX_DXE_MEM_REG + 0x404)
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#define WCN36XX_DXE_0_CH1_STATUS (WCN36XX_DXE_MEM_REG + 0x444)
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#define WCN36XX_DXE_0_CH2_STATUS (WCN36XX_DXE_MEM_REG + 0x484)
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#define WCN36XX_DXE_0_CH3_STATUS (WCN36XX_DXE_MEM_REG + 0x4C4)
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#define WCN36XX_DXE_0_CH4_STATUS (WCN36XX_DXE_MEM_REG + 0x504)
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#define WCN36XX_DXE_REG_RESET 0x5c89
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/* Temporary BMU Workqueue 4 */
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#define WCN36XX_DXE_BMU_WQ_RX_LOW 0xB
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#define WCN36XX_DXE_BMU_WQ_RX_HIGH 0x4
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/* DMA channel offset */
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#define WCN36XX_DXE_TX_LOW_OFFSET 0x400
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#define WCN36XX_DXE_TX_HIGH_OFFSET 0x500
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#define WCN36XX_DXE_RX_LOW_OFFSET 0x440
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#define WCN36XX_DXE_RX_HIGH_OFFSET 0x4C0
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/* Address of the next DXE descriptor */
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#define WCN36XX_DXE_CH_NEXT_DESC_ADDR 0x001C
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#define WCN36XX_DXE_CH_NEXT_DESC_ADDR_TX_L (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_TX_LOW_OFFSET + \
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WCN36XX_DXE_CH_NEXT_DESC_ADDR)
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#define WCN36XX_DXE_CH_NEXT_DESC_ADDR_TX_H (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_TX_HIGH_OFFSET + \
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WCN36XX_DXE_CH_NEXT_DESC_ADDR)
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#define WCN36XX_DXE_CH_NEXT_DESC_ADDR_RX_L (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_RX_LOW_OFFSET + \
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WCN36XX_DXE_CH_NEXT_DESC_ADDR)
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#define WCN36XX_DXE_CH_NEXT_DESC_ADDR_RX_H (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_RX_HIGH_OFFSET + \
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WCN36XX_DXE_CH_NEXT_DESC_ADDR)
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/* DXE Descriptor source address */
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#define WCN36XX_DXE_CH_SRC_ADDR 0x000C
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#define WCN36XX_DXE_CH_SRC_ADDR_RX_L (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_RX_LOW_OFFSET + \
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WCN36XX_DXE_CH_SRC_ADDR)
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#define WCN36XX_DXE_CH_SRC_ADDR_RX_H (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_RX_HIGH_OFFSET + \
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WCN36XX_DXE_CH_SRC_ADDR)
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/* DXE Descriptor address destination address */
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#define WCN36XX_DXE_CH_DEST_ADDR 0x0014
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#define WCN36XX_DXE_CH_DEST_ADDR_TX_L (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_TX_LOW_OFFSET + \
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WCN36XX_DXE_CH_DEST_ADDR)
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#define WCN36XX_DXE_CH_DEST_ADDR_TX_H (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_TX_HIGH_OFFSET + \
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WCN36XX_DXE_CH_DEST_ADDR)
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#define WCN36XX_DXE_CH_DEST_ADDR_RX_L (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_RX_LOW_OFFSET + \
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WCN36XX_DXE_CH_DEST_ADDR)
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#define WCN36XX_DXE_CH_DEST_ADDR_RX_H (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_RX_HIGH_OFFSET + \
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WCN36XX_DXE_CH_DEST_ADDR)
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/* Interrupt status */
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#define WCN36XX_DXE_CH_STATUS_REG_ADDR 0x0004
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#define WCN36XX_DXE_CH_STATUS_REG_ADDR_TX_L (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_TX_LOW_OFFSET + \
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WCN36XX_DXE_CH_STATUS_REG_ADDR)
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#define WCN36XX_DXE_CH_STATUS_REG_ADDR_TX_H (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_TX_HIGH_OFFSET + \
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WCN36XX_DXE_CH_STATUS_REG_ADDR)
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#define WCN36XX_DXE_CH_STATUS_REG_ADDR_RX_L (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_RX_LOW_OFFSET + \
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WCN36XX_DXE_CH_STATUS_REG_ADDR)
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#define WCN36XX_DXE_CH_STATUS_REG_ADDR_RX_H (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_RX_HIGH_OFFSET + \
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WCN36XX_DXE_CH_STATUS_REG_ADDR)
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/* DXE default control register */
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#define WCN36XX_DXE_REG_CTL_RX_L (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_RX_LOW_OFFSET)
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#define WCN36XX_DXE_REG_CTL_RX_H (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_RX_HIGH_OFFSET)
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#define WCN36XX_DXE_REG_CTL_TX_H (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_TX_HIGH_OFFSET)
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#define WCN36XX_DXE_REG_CTL_TX_L (WCN36XX_DXE_MEM_REG + \
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WCN36XX_DXE_TX_LOW_OFFSET)
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#define WCN36XX_SMSM_WLAN_TX_ENABLE 0x00000400
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#define WCN36XX_SMSM_WLAN_TX_RINGS_EMPTY 0x00000200
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/* Interrupt control channel mask */
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#define WCN36XX_INT_MASK_CHAN_TX_L 0x00000001
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#define WCN36XX_INT_MASK_CHAN_RX_L 0x00000002
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#define WCN36XX_INT_MASK_CHAN_RX_H 0x00000008
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#define WCN36XX_INT_MASK_CHAN_TX_H 0x00000010
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#define WCN36XX_BD_CHUNK_SIZE 128
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#define WCN36XX_PKT_SIZE 0xF20
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enum wcn36xx_dxe_ch_type {
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WCN36XX_DXE_CH_TX_L,
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WCN36XX_DXE_CH_TX_H,
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WCN36XX_DXE_CH_RX_L,
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WCN36XX_DXE_CH_RX_H
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};
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/* amount of descriptors per channel */
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enum wcn36xx_dxe_ch_desc_num {
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WCN36XX_DXE_CH_DESC_NUMB_TX_L = 128,
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WCN36XX_DXE_CH_DESC_NUMB_TX_H = 10,
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WCN36XX_DXE_CH_DESC_NUMB_RX_L = 512,
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WCN36XX_DXE_CH_DESC_NUMB_RX_H = 40
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};
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/**
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* struct wcn36xx_dxe_desc - describes descriptor of one DXE buffer
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*
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* @ctrl: is a union that consists of following bits:
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* union {
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* u32 valid :1; //0 = DMA stop, 1 = DMA continue with this
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* //descriptor
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* u32 transfer_type :2; //0 = Host to Host space
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* u32 eop :1; //End of Packet
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* u32 bd_handling :1; //if transferType = Host to BMU, then 0
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* // means first 128 bytes contain BD, and 1
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* // means create new empty BD
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* u32 siq :1; // SIQ
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* u32 diq :1; // DIQ
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* u32 pdu_rel :1; //0 = don't release BD and PDUs when done,
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* // 1 = release them
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* u32 bthld_sel :4; //BMU Threshold Select
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* u32 prio :3; //Specifies the priority level to use for
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* // the transfer
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* u32 stop_channel :1; //1 = DMA stops processing further, channel
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* //requires re-enabling after this
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* u32 intr :1; //Interrupt on Descriptor Done
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* u32 rsvd :1; //reserved
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* u32 size :14;//14 bits used - ignored for BMU transfers,
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* //only used for host to host transfers?
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* } ctrl;
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*/
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struct wcn36xx_dxe_desc {
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u32 ctrl;
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u32 fr_len;
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u32 src_addr_l;
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u32 dst_addr_l;
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u32 phy_next_l;
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u32 src_addr_h;
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u32 dst_addr_h;
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u32 phy_next_h;
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} __packed;
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/* DXE Control block */
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struct wcn36xx_dxe_ctl {
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struct wcn36xx_dxe_ctl *next;
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struct wcn36xx_dxe_desc *desc;
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unsigned int desc_phy_addr;
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int ctl_blk_order;
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struct sk_buff *skb;
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void *bd_cpu_addr;
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dma_addr_t bd_phy_addr;
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};
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struct wcn36xx_dxe_ch {
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spinlock_t lock; /* protects head/tail ptrs */
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enum wcn36xx_dxe_ch_type ch_type;
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void *cpu_addr;
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dma_addr_t dma_addr;
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enum wcn36xx_dxe_ch_desc_num desc_num;
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/* DXE control block ring */
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struct wcn36xx_dxe_ctl *head_blk_ctl;
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struct wcn36xx_dxe_ctl *tail_blk_ctl;
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/* DXE channel specific configs */
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u32 dxe_wq;
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u32 ctrl_bd;
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u32 ctrl_skb;
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u32 reg_ctrl;
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u32 def_ctrl;
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};
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/* Memory Pool for BD headers */
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struct wcn36xx_dxe_mem_pool {
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int chunk_size;
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void *virt_addr;
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dma_addr_t phy_addr;
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};
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struct wcn36xx_tx_bd;
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struct wcn36xx_vif;
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int wcn36xx_dxe_allocate_mem_pools(struct wcn36xx *wcn);
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void wcn36xx_dxe_free_mem_pools(struct wcn36xx *wcn);
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void wcn36xx_dxe_rx_frame(struct wcn36xx *wcn);
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int wcn36xx_dxe_alloc_ctl_blks(struct wcn36xx *wcn);
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void wcn36xx_dxe_free_ctl_blks(struct wcn36xx *wcn);
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int wcn36xx_dxe_init(struct wcn36xx *wcn);
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void wcn36xx_dxe_deinit(struct wcn36xx *wcn);
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int wcn36xx_dxe_init_channels(struct wcn36xx *wcn);
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int wcn36xx_dxe_tx_frame(struct wcn36xx *wcn,
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struct wcn36xx_vif *vif_priv,
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struct wcn36xx_tx_bd *bd,
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struct sk_buff *skb,
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bool is_low);
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int wcn36xx_dxe_tx_flush(struct wcn36xx *wcn);
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void wcn36xx_dxe_tx_ack_ind(struct wcn36xx *wcn, u32 status);
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#endif /* _DXE_H_ */
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