mirror of
https://github.com/Fishwaldo/Star64_linux.git
synced 2025-03-21 06:34:00 +00:00
net: ti: icssg-prueth: Add icssg queues APIs and macros
Add icssg_queue.c file. This file introduces macros and APIs related to ICSSG queues. These will be used by ICSSG Ethernet driver. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: MD Danish Anwar <danishanwar@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
e9b4ece7d7
commit
b8d5008f8c
2 changed files with 55 additions and 0 deletions
|
@ -209,4 +209,9 @@ int emac_set_port_state(struct prueth_emac *emac,
|
|||
enum icssg_port_state_cmd state);
|
||||
void icssg_config_set_speed(struct prueth_emac *emac);
|
||||
|
||||
/* Buffer queue helpers */
|
||||
int icssg_queue_pop(struct prueth *prueth, u8 queue);
|
||||
void icssg_queue_push(struct prueth *prueth, int queue, u16 addr);
|
||||
u32 icssg_queue_level(struct prueth *prueth, int queue);
|
||||
|
||||
#endif /* __NET_TI_ICSSG_PRUETH_H */
|
||||
|
|
50
drivers/net/ethernet/ti/icssg/icssg_queues.c
Normal file
50
drivers/net/ethernet/ti/icssg/icssg_queues.c
Normal file
|
@ -0,0 +1,50 @@
|
|||
// SPDX-License-Identifier: GPL-2.0
|
||||
/* ICSSG Buffer queue helpers
|
||||
*
|
||||
* Copyright (C) 2021 Texas Instruments Incorporated - https://www.ti.com
|
||||
*/
|
||||
|
||||
#include <linux/regmap.h>
|
||||
#include "icssg_prueth.h"
|
||||
|
||||
#define ICSSG_QUEUES_MAX 64
|
||||
#define ICSSG_QUEUE_OFFSET 0xd00
|
||||
#define ICSSG_QUEUE_PEEK_OFFSET 0xe00
|
||||
#define ICSSG_QUEUE_CNT_OFFSET 0xe40
|
||||
#define ICSSG_QUEUE_RESET_OFFSET 0xf40
|
||||
|
||||
int icssg_queue_pop(struct prueth *prueth, u8 queue)
|
||||
{
|
||||
u32 val, cnt;
|
||||
|
||||
if (queue >= ICSSG_QUEUES_MAX)
|
||||
return -EINVAL;
|
||||
|
||||
regmap_read(prueth->miig_rt, ICSSG_QUEUE_CNT_OFFSET + 4 * queue, &cnt);
|
||||
if (!cnt)
|
||||
return -EINVAL;
|
||||
|
||||
regmap_read(prueth->miig_rt, ICSSG_QUEUE_OFFSET + 4 * queue, &val);
|
||||
|
||||
return val;
|
||||
}
|
||||
|
||||
void icssg_queue_push(struct prueth *prueth, int queue, u16 addr)
|
||||
{
|
||||
if (queue >= ICSSG_QUEUES_MAX)
|
||||
return;
|
||||
|
||||
regmap_write(prueth->miig_rt, ICSSG_QUEUE_OFFSET + 4 * queue, addr);
|
||||
}
|
||||
|
||||
u32 icssg_queue_level(struct prueth *prueth, int queue)
|
||||
{
|
||||
u32 reg;
|
||||
|
||||
if (queue >= ICSSG_QUEUES_MAX)
|
||||
return 0;
|
||||
|
||||
regmap_read(prueth->miig_rt, ICSSG_QUEUE_CNT_OFFSET + 4 * queue, ®);
|
||||
|
||||
return reg;
|
||||
}
|
Loading…
Add table
Reference in a new issue