From ecab413359541b1dbe8e8c91cb5fa8eafa662c05 Mon Sep 17 00:00:00 2001 From: Marc Butler Date: Fri, 23 Mar 2007 10:24:02 -0600 Subject: [PATCH] firewire: Add phy register defines. MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Signed-off-by: Marc Butler Signed-off-by: Kristian Høgsberg Signed-off-by: Stefan Richter (added whitespace) --- drivers/firewire/fw-card.c | 14 ++++++++++---- drivers/firewire/fw-transaction.h | 6 ++++++ 2 files changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/firewire/fw-card.c b/drivers/firewire/fw-card.c index d929eb6fef6..34863b60e23 100644 --- a/drivers/firewire/fw-card.c +++ b/drivers/firewire/fw-card.c @@ -395,9 +395,9 @@ fw_card_add(struct fw_card *card, card->link_speed = link_speed; card->guid = guid; - /* FIXME: add #define's for phy registers. */ /* Activate link_on bit and contender bit in our self ID packets.*/ - if (card->driver->update_phy_reg(card, 4, 0, 0x80 | 0x40) < 0) + if (card->driver->update_phy_reg(card, 4, 0, + PHY_LINK_ACTIVE | PHY_CONTENDER) < 0) return -EIO; /* The subsystem grabs a reference when the card is added and @@ -483,7 +483,8 @@ static struct fw_card_driver dummy_driver = { void fw_core_remove_card(struct fw_card *card) { - card->driver->update_phy_reg(card, 4, 0x80 | 0x40, 0); + card->driver->update_phy_reg(card, 4, + PHY_LINK_ACTIVE | PHY_CONTENDER, 0); fw_core_initiate_bus_reset(card, 1); down_write(&fw_bus_type.subsys.rwsem); @@ -531,6 +532,11 @@ EXPORT_SYMBOL(fw_card_put); int fw_core_initiate_bus_reset(struct fw_card *card, int short_reset) { - return card->driver->update_phy_reg(card, short_reset ? 5 : 1, 0, 0x40); + int reg = short_reset ? 5 : 1; + /* The following values happen to be the same bit. However be + * explicit for clarity. */ + int bit = short_reset ? PHY_BUS_SHORT_RESET : PHY_BUS_RESET; + + return card->driver->update_phy_reg(card, reg, 0, bit); } EXPORT_SYMBOL(fw_core_initiate_bus_reset); diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h index 662149723e9..63527340152 100644 --- a/drivers/firewire/fw-transaction.h +++ b/drivers/firewire/fw-transaction.h @@ -107,6 +107,12 @@ #define PHY_PACKET_LINK_ON 0x1 #define PHY_PACKET_SELF_ID 0x2 +/* Bit fields _within_ the PHY registers. */ +#define PHY_LINK_ACTIVE 0x80 +#define PHY_CONTENDER 0x40 +#define PHY_BUS_RESET 0x40 +#define PHY_BUS_SHORT_RESET 0x40 + #define CSR_REGISTER_BASE 0xfffff0000000ULL /* register offsets relative to CSR_REGISTER_BASE */ -- 2.20.1