AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-26 16:06:30 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
f60d94c009
linux_dsm_epyc7002/drivers/net/ethernet/wiznet/w5100.h

36 lines
999 B
C
Raw Normal View History

net: w5100: add ability to support other bus interface The w5100 driver currently only supports direct and indirect bus interface mode which use MMIO space for accessing w5100 registers. In order to support SPI interface mode which is supported by W5100 chip, this makes the bus interface abstraction layer more generic so that separated w5100-spi driver can use w5100 driver as core module. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Mike Sinkovsky <msink@permonline.ru> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14 22:11:30 +07:00
/*
* Ethernet driver for the WIZnet W5100 chip.
*
* Copyright (C) 2006-2008 WIZnet Co.,Ltd.
* Copyright (C) 2012 Mike Sinkovsky <msink@permonline.ru>
*
* Licensed under the GPL-2 or later.
*/
net: w5100: support W5200 This adds support for W5200 chip. W5100 and W5200 have similar memory map although some of their offsets are different. The register access sequences between them are different but w5100 driver has abstraction layer for difference bus interface modes so it is easy to add W5200 support to w5100 and w5100-spi drivers. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Mike Sinkovsky <msink@permonline.ru> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14 22:11:33 +07:00
enum {
W5100,
W5200,
};
net: w5100: add ability to support other bus interface The w5100 driver currently only supports direct and indirect bus interface mode which use MMIO space for accessing w5100 registers. In order to support SPI interface mode which is supported by W5100 chip, this makes the bus interface abstraction layer more generic so that separated w5100-spi driver can use w5100 driver as core module. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Mike Sinkovsky <msink@permonline.ru> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14 22:11:30 +07:00
struct w5100_ops {
net: w5100: enable to support sleepable register access interface SPI transfer routines are callable only from contexts that can sleep. This adds ability to tell the core driver that the interface mode cannot access w5100 register on atomic contexts. In this case, workqueue and threaded irq are required. This also corrects timeout period waiting for command register to be automatically cleared because the latency of the register access with SPI transfer can be interfered by other contexts. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Mike Sinkovsky <msink@permonline.ru> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14 22:11:31 +07:00
bool may_sleep;
net: w5100: support W5200 This adds support for W5200 chip. W5100 and W5200 have similar memory map although some of their offsets are different. The register access sequences between them are different but w5100 driver has abstraction layer for difference bus interface modes so it is easy to add W5200 support to w5100 and w5100-spi drivers. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Mike Sinkovsky <msink@permonline.ru> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14 22:11:33 +07:00
int chip_id;
net: w5100: add ability to support other bus interface The w5100 driver currently only supports direct and indirect bus interface mode which use MMIO space for accessing w5100 registers. In order to support SPI interface mode which is supported by W5100 chip, this makes the bus interface abstraction layer more generic so that separated w5100-spi driver can use w5100 driver as core module. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Mike Sinkovsky <msink@permonline.ru> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-14 22:11:30 +07:00
int (*read)(struct net_device *ndev, u16 addr);
int (*write)(struct net_device *ndev, u16 addr, u8 data);
int (*read16)(struct net_device *ndev, u16 addr);
int (*write16)(struct net_device *ndev, u16 addr, u16 data);
int (*readbulk)(struct net_device *ndev, u16 addr, u8 *buf, int len);
int (*writebulk)(struct net_device *ndev, u16 addr, const u8 *buf,
int len);
int (*reset)(struct net_device *ndev);
int (*init)(struct net_device *ndev);
};
void *w5100_ops_priv(const struct net_device *ndev);
int w5100_probe(struct device *dev, const struct w5100_ops *ops,
int sizeof_ops_priv, u8 *mac_addr, int irq, int link_gpio);
int w5100_remove(struct device *dev);
extern const struct dev_pm_ops w5100_pm_ops;
Reference in New Issue Copy Permalink