| Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 1 | /**************************************************************************** |
| 2 | * Driver for Solarflare Solarstorm network controllers and boards |
| 3 | * Copyright 2006 Solarflare Communications Inc. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 as published |
| 7 | * by the Free Software Foundation, incorporated herein by reference. |
| 8 | */ |
| 9 | |
| 10 | #ifndef EFX_XENPACK_H |
| 11 | #define EFX_XENPACK_H |
| 12 | |
| 13 | /* Exported functions from Xenpack standard PHY control */ |
| 14 | |
| 15 | #include "mdio_10g.h" |
| 16 | |
| 17 | /****************************************************************************/ |
| 18 | /* XENPACK MDIO register extensions */ |
| 19 | #define MDIO_XP_LASI_RX_CTRL (0x9000) |
| 20 | #define MDIO_XP_LASI_TX_CTRL (0x9001) |
| 21 | #define MDIO_XP_LASI_CTRL (0x9002) |
| 22 | #define MDIO_XP_LASI_RX_STAT (0x9003) |
| 23 | #define MDIO_XP_LASI_TX_STAT (0x9004) |
| 24 | #define MDIO_XP_LASI_STAT (0x9005) |
| 25 | |
| 26 | /* Control/Status bits */ |
| 27 | #define XP_LASI_LS_ALARM (1 << 0) |
| 28 | #define XP_LASI_TX_ALARM (1 << 1) |
| 29 | #define XP_LASI_RX_ALARM (1 << 2) |
| 30 | /* These two are Quake vendor extensions to the standard XENPACK defines */ |
| 31 | #define XP_LASI_LS_INTB (1 << 3) |
| 32 | #define XP_LASI_TEST (1 << 7) |
| 33 | |
| 34 | /* Enable LASI interrupts for PHY */ |
| 35 | static inline void xenpack_enable_lasi_irqs(struct efx_nic *efx) |
| 36 | { |
| 37 | int reg; |
| 38 | int phy_id = efx->mii.phy_id; |
| 39 | /* Read to clear LASI status register */ |
| 40 | reg = mdio_clause45_read(efx, phy_id, MDIO_MMD_PMAPMD, |
| 41 | MDIO_XP_LASI_STAT); |
| 42 | |
| 43 | mdio_clause45_write(efx, phy_id, MDIO_MMD_PMAPMD, |
| 44 | MDIO_XP_LASI_CTRL, XP_LASI_LS_ALARM); |
| 45 | } |
| 46 | |
| 47 | /* Read the LASI interrupt status to clear the interrupt. */ |
| 48 | static inline int xenpack_clear_lasi_irqs(struct efx_nic *efx) |
| 49 | { |
| 50 | /* Read to clear link status alarm */ |
| 51 | return mdio_clause45_read(efx, efx->mii.phy_id, |
| 52 | MDIO_MMD_PMAPMD, MDIO_XP_LASI_STAT); |
| 53 | } |
| 54 | |
| 55 | /* Turn off LASI interrupts */ |
| 56 | static inline void xenpack_disable_lasi_irqs(struct efx_nic *efx) |
| 57 | { |
| 58 | mdio_clause45_write(efx, efx->mii.phy_id, MDIO_MMD_PMAPMD, |
| 59 | MDIO_XP_LASI_CTRL, 0); |
| 60 | } |
| 61 | |
| 62 | #endif /* EFX_XENPACK_H */ |