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wcn36xx: calculate DXE control registers values 

DXE descriptor control registers used hardcoded magic values.  Added bit
definitions of the control register and calculate this values in compilation
for clarity. No functional changes.

Signed-off-by: Ramon Fried <rfried@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Ramon Fried 2018-03-04 18:31:34 +02:00 committed by Kalle Valo
parent 1fb148f51e
commit 6ced795816
2 changed files with 103 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/wireless/ath/wcn36xx/dxe.c
View File

@ -376,7 +376,7 @@ static void reap_tx_dxes(struct wcn36xx *wcn, struct wcn36xx_dxe_ch *ch)
spin_lock_irqsave(&ch->lock, flags);
ctl = ch->tail_blk_ctl;
do {
if (ctl->desc->ctrl & WCN36XX_DXE_CTRL_VALID_MASK)
if (ctl->desc->ctrl & WCN36xx_DXE_CTRL_VLD)
break;
if (ctl->skb) {
dma_unmap_single(wcn->dev, ctl->desc->src_addr_l,
@ -397,7 +397,7 @@ static void reap_tx_dxes(struct wcn36xx *wcn, struct wcn36xx_dxe_ch *ch)
}
ctl = ctl->next;
} while (ctl != ch->head_blk_ctl &&
!(ctl->desc->ctrl & WCN36XX_DXE_CTRL_VALID_MASK));
!(ctl->desc->ctrl & WCN36xx_DXE_CTRL_VLD));
ch->tail_blk_ctl = ctl;
spin_unlock_irqrestore(&ch->lock, flags);
@ -503,7 +503,7 @@ static int wcn36xx_rx_handle_packets(struct wcn36xx *wcn,
int_mask = WCN36XX_DXE_INT_CH3_MASK;
}
while (!(dxe->ctrl & WCN36XX_DXE_CTRL_VALID_MASK)) {
while (!(dxe->ctrl & WCN36xx_DXE_CTRL_VLD)) {
skb = ctl->skb;
dma_addr = dxe->dst_addr_l;
ret = wcn36xx_dxe_fill_skb(wcn->dev, ctl);

112
drivers/net/wireless/ath/wcn36xx/dxe.h
View File

@ -33,15 +33,106 @@ H2H_TEST_RX_TX = DMA2
#define WCN36XX_CCU_DXE_INT_SELECT_RIVA 0x310
#define WCN36XX_CCU_DXE_INT_SELECT_PRONTO 0x10dc
/* TODO This must calculated properly but not hardcoded */
#define WCN36XX_DXE_CTRL_TX_L 0x328a44
#define WCN36XX_DXE_CTRL_TX_H 0x32ce44
#define WCN36XX_DXE_CTRL_RX_L 0x12ad2f
#define WCN36XX_DXE_CTRL_RX_H 0x12d12f
#define WCN36XX_DXE_CTRL_TX_H_BD 0x30ce45
#define WCN36XX_DXE_CTRL_TX_H_SKB 0x32ce4d
#define WCN36XX_DXE_CTRL_TX_L_BD 0x308a45
#define WCN36XX_DXE_CTRL_TX_L_SKB 0x328a4d
/* Descriptor valid */
#define WCN36xx_DXE_CTRL_VLD BIT(0)
/* End of packet */
#define WCN36xx_DXE_CTRL_EOP BIT(3)
/* BD handling bit */
#define WCN36xx_DXE_CTRL_BDH BIT(4)
/* Source is a queue */
#define WCN36xx_DXE_CTRL_SIQ BIT(5)
/* Destination is a queue */
#define WCN36xx_DXE_CTRL_DIQ BIT(6)
/* Pointer address is a queue */
#define WCN36xx_DXE_CTRL_PIQ BIT(7)
/* Release PDU when done */
#define WCN36xx_DXE_CTRL_PDU_REL BIT(8)
/* STOP channel processing */
#define WCN36xx_DXE_CTRL_STOP BIT(16)
/* INT on descriptor done */
#define WCN36xx_DXE_CTRL_INT BIT(17)
/* Endian byte swap enable */
#define WCN36xx_DXE_CTRL_SWAP BIT(20)
/* Master endianness */
#define WCN36xx_DXE_CTRL_ENDIANNESS BIT(21)
/* Transfer type */
#define WCN36xx_DXE_CTRL_XTYPE_SHIFT 1
#define WCN36xx_DXE_CTRL_XTYPE_MASK GENMASK(2, WCN36xx_DXE_CTRL_XTYPE_SHIFT)
#define WCN36xx_DXE_CTRL_XTYPE_SET(x) ((x) << WCN36xx_DXE_CTRL_XTYPE_SHIFT)
/* BMU Threshold select */
#define WCN36xx_DXE_CTRL_BTHLD_SEL_SHIFT 9
#define WCN36xx_DXE_CTRL_BTHLD_SEL_MASK GENMASK(12, WCN36xx_DXE_CTRL_BTHLD_SEL_SHIFT)
#define WCN36xx_DXE_CTRL_BTHLD_SEL_SET(x) ((x) << WCN36xx_DXE_CTRL_BTHLD_SEL_SHIFT)
/* Priority */
#define WCN36xx_DXE_CTRL_PRIO_SHIFT 13
#define WCN36xx_DXE_CTRL_PRIO_MASK GENMASK(15, WCN36xx_DXE_CTRL_PRIO_SHIFT)
#define WCN36xx_DXE_CTRL_PRIO_SET(x) ((x) << WCN36xx_DXE_CTRL_PRIO_SHIFT)
/* BD Template index */
#define WCN36xx_DXE_CTRL_BDT_IDX_SHIFT 18
#define WCN36xx_DXE_CTRL_BDT_IDX_MASK GENMASK(19, WCN36xx_DXE_CTRL_BDT_IDX_SHIFT)
#define WCN36xx_DXE_CTRL_BDT_IDX_SET(x) ((x) << WCN36xx_DXE_CTRL_BDT_IDX_SHIFT)
/* Transfer types: */
/* Host to host */
#define WCN36xx_DXE_XTYPE_H2H (0)
/* Host to BMU */
#define WCN36xx_DXE_XTYPE_H2B (2)
/* BMU to host */
#define WCN36xx_DXE_XTYPE_B2H (3)
#define WCN36XX_DXE_CTRL_TX_L (WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \
WCN36xx_DXE_CTRL_DIQ | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(5) | \
WCN36xx_DXE_CTRL_PRIO_SET(4) | WCN36xx_DXE_CTRL_INT | \
WCN36xx_DXE_CTRL_SWAP | WCN36xx_DXE_CTRL_ENDIANNESS)
#define WCN36XX_DXE_CTRL_TX_H (WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \
WCN36xx_DXE_CTRL_DIQ | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(7) | \
WCN36xx_DXE_CTRL_PRIO_SET(6) | WCN36xx_DXE_CTRL_INT | \
WCN36xx_DXE_CTRL_SWAP | WCN36xx_DXE_CTRL_ENDIANNESS)
#define WCN36XX_DXE_CTRL_RX_L (WCN36xx_DXE_CTRL_VLD | \
WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_B2H) | \
WCN36xx_DXE_CTRL_EOP | WCN36xx_DXE_CTRL_SIQ | \
WCN36xx_DXE_CTRL_PDU_REL | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(6) | \
WCN36xx_DXE_CTRL_PRIO_SET(5) | WCN36xx_DXE_CTRL_INT | \
WCN36xx_DXE_CTRL_SWAP)
#define WCN36XX_DXE_CTRL_RX_H (WCN36xx_DXE_CTRL_VLD | \
WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_B2H) | \
WCN36xx_DXE_CTRL_EOP | WCN36xx_DXE_CTRL_SIQ | \
WCN36xx_DXE_CTRL_PDU_REL | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(8) | \
WCN36xx_DXE_CTRL_PRIO_SET(6) | WCN36xx_DXE_CTRL_INT | \
WCN36xx_DXE_CTRL_SWAP)
#define WCN36XX_DXE_CTRL_TX_H_BD (WCN36xx_DXE_CTRL_VLD | \
WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \
WCN36xx_DXE_CTRL_DIQ | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(7) | \
WCN36xx_DXE_CTRL_PRIO_SET(6) | WCN36xx_DXE_CTRL_SWAP | \
WCN36xx_DXE_CTRL_ENDIANNESS)
#define WCN36XX_DXE_CTRL_TX_H_SKB (WCN36xx_DXE_CTRL_VLD | \
WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \
WCN36xx_DXE_CTRL_EOP | WCN36xx_DXE_CTRL_DIQ | \
WCN36xx_DXE_CTRL_BTHLD_SEL_SET(7) | WCN36xx_DXE_CTRL_PRIO_SET(6) | \
WCN36xx_DXE_CTRL_INT | WCN36xx_DXE_CTRL_SWAP | \
WCN36xx_DXE_CTRL_ENDIANNESS)
#define WCN36XX_DXE_CTRL_TX_L_BD (WCN36xx_DXE_CTRL_VLD | \
WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \
WCN36xx_DXE_CTRL_DIQ | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(5) | \
WCN36xx_DXE_CTRL_PRIO_SET(4) | WCN36xx_DXE_CTRL_SWAP | \
WCN36xx_DXE_CTRL_ENDIANNESS)
#define WCN36XX_DXE_CTRL_TX_L_SKB (WCN36xx_DXE_CTRL_VLD | \
WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \
WCN36xx_DXE_CTRL_EOP | WCN36xx_DXE_CTRL_DIQ | \
WCN36xx_DXE_CTRL_BTHLD_SEL_SET(5) | WCN36xx_DXE_CTRL_PRIO_SET(4) | \
WCN36xx_DXE_CTRL_INT | WCN36xx_DXE_CTRL_SWAP | \
WCN36xx_DXE_CTRL_ENDIANNESS)
/* TODO This must calculated properly but not hardcoded */
#define WCN36XX_DXE_WQ_TX_L 0x17
@ -49,9 +140,6 @@ H2H_TEST_RX_TX = DMA2
#define WCN36XX_DXE_WQ_RX_L 0xB
#define WCN36XX_DXE_WQ_RX_H 0x4
/* DXE descriptor control filed */
#define WCN36XX_DXE_CTRL_VALID_MASK (0x00000001)
/* TODO This must calculated properly but not hardcoded */
/* DXE default control register values */
#define WCN36XX_DXE_CH_DEFAULT_CTL_RX_L 0x847EAD2F