From 98e4c28b7ec390c2dad6a4c69d69629c0f7e8b10 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Mon, 14 Nov 2005 21:21:18 +0100 Subject: [PATCH] pcmcia: new suspend core Move the suspend and resume methods out of the event handler, and into special functions. Also use these functions for pre- and post-reset, as almost all drivers already do, and the remaining ones can easily be converted. Bugfix to include/pcmcia/ds.c Signed-off-by: Andrew Morton Signed-off-by: Dominik Brodowski --- drivers/net/pcmcia/3c589_cs.c | 56 ++++++++++++++++++++++++++----------------- 1 file changed, 34 insertions(+), 22 deletions(-) (limited to 'drivers/net/pcmcia/3c589_cs.c') diff --git a/drivers/net/pcmcia/3c589_cs.c b/drivers/net/pcmcia/3c589_cs.c index d83fdd8c194..bbda681ac10 100644 --- a/drivers/net/pcmcia/3c589_cs.c +++ b/drivers/net/pcmcia/3c589_cs.c @@ -421,6 +421,38 @@ static void tc589_release(dev_link_t *link) link->state &= ~DEV_CONFIG; } +static int tc589_suspend(struct pcmcia_device *p_dev) +{ + dev_link_t *link = dev_to_instance(p_dev); + struct net_device *dev = link->priv; + + link->state |= DEV_SUSPEND; + if (link->state & DEV_CONFIG) { + if (link->open) + netif_device_detach(dev); + pcmcia_release_configuration(link->handle); + } + + return 0; +} + +static int tc589_resume(struct pcmcia_device *p_dev) +{ + dev_link_t *link = dev_to_instance(p_dev); + struct net_device *dev = link->priv; + + link->state &= ~DEV_SUSPEND; + if (link->state & DEV_CONFIG) { + pcmcia_request_configuration(link->handle, &link->conf); + if (link->open) { + tc589_reset(dev); + netif_device_attach(dev); + } + } + + return 0; +} + /*====================================================================== The card status event handler. Mostly, this schedules other @@ -448,28 +480,6 @@ static int tc589_event(event_t event, int priority, link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; tc589_config(link); break; - case CS_EVENT_PM_SUSPEND: - link->state |= DEV_SUSPEND; - /* Fall through... */ - case CS_EVENT_RESET_PHYSICAL: - if (link->state & DEV_CONFIG) { - if (link->open) - netif_device_detach(dev); - pcmcia_release_configuration(link->handle); - } - break; - case CS_EVENT_PM_RESUME: - link->state &= ~DEV_SUSPEND; - /* Fall through... */ - case CS_EVENT_CARD_RESET: - if (link->state & DEV_CONFIG) { - pcmcia_request_configuration(link->handle, &link->conf); - if (link->open) { - tc589_reset(dev); - netif_device_attach(dev); - } - } - break; } return 0; } /* tc589_event */ @@ -1071,6 +1081,8 @@ static struct pcmcia_driver tc589_driver = { .event = tc589_event, .detach = tc589_detach, .id_table = tc589_ids, + .suspend = tc589_suspend, + .resume = tc589_resume, }; static int __init init_tc589(void) -- cgit v1.2.3-18-g5258 From cc3b4866bee996c922e875b8c8efe9f0d8803aae Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Mon, 14 Nov 2005 21:23:14 +0100 Subject: [PATCH] pcmcia: unify detach, REMOVAL_EVENT handlers into one remove callback Unify the "detach" and REMOVAL_EVENT handlers to one "remove" function. Old functionality is preserved, for the moment. Signed-off-by: Dominik Brodowski --- drivers/net/pcmcia/3c589_cs.c | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) (limited to 'drivers/net/pcmcia/3c589_cs.c') diff --git a/drivers/net/pcmcia/3c589_cs.c b/drivers/net/pcmcia/3c589_cs.c index bbda681ac10..09b96c76216 100644 --- a/drivers/net/pcmcia/3c589_cs.c +++ b/drivers/net/pcmcia/3c589_cs.c @@ -164,7 +164,7 @@ static struct ethtool_ops netdev_ethtool_ops; static dev_info_t dev_info = "3c589_cs"; static dev_link_t *tc589_attach(void); -static void tc589_detach(dev_link_t *); +static void tc589_detach(struct pcmcia_device *p_dev); static dev_link_t *dev_list; @@ -230,7 +230,7 @@ static dev_link_t *tc589_attach(void) ret = pcmcia_register_client(&link->handle, &client_reg); if (ret != 0) { cs_error(link->handle, RegisterClient, ret); - tc589_detach(link); + tc589_detach(link->handle); return NULL; } @@ -246,8 +246,9 @@ static dev_link_t *tc589_attach(void) ======================================================================*/ -static void tc589_detach(dev_link_t *link) +static void tc589_detach(struct pcmcia_device *p_dev) { + dev_link_t *link = dev_to_instance(p_dev); struct net_device *dev = link->priv; dev_link_t **linkp; @@ -264,10 +265,7 @@ static void tc589_detach(dev_link_t *link) if (link->state & DEV_CONFIG) tc589_release(link); - - if (link->handle) - pcmcia_deregister_client(link->handle); - + /* Unlink device structure, free bits */ *linkp = link->next; free_netdev(dev); @@ -466,16 +464,10 @@ static int tc589_event(event_t event, int priority, event_callback_args_t *args) { dev_link_t *link = args->client_data; - struct net_device *dev = link->priv; DEBUG(1, "3c589_event(0x%06x)\n", event); switch (event) { - case CS_EVENT_CARD_REMOVAL: - link->state &= ~DEV_PRESENT; - if (link->state & DEV_CONFIG) - netif_device_detach(dev); - break; case CS_EVENT_CARD_INSERTION: link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; tc589_config(link); @@ -1079,7 +1071,7 @@ static struct pcmcia_driver tc589_driver = { }, .attach = tc589_attach, .event = tc589_event, - .detach = tc589_detach, + .remove = tc589_detach, .id_table = tc589_ids, .suspend = tc589_suspend, .resume = tc589_resume, -- cgit v1.2.3-18-g5258 From b463581154f3f3eecda27cae60df813fefcd84d3 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Mon, 14 Nov 2005 21:25:35 +0100 Subject: [PATCH] pcmcia: remove dev_list from drivers The linked list of devices managed by each PCMCIA driver is, in very most cases, unused. Therefore, remove it from many drivers. Signed-off-by: Dominik Brodowski --- drivers/net/pcmcia/3c589_cs.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) (limited to 'drivers/net/pcmcia/3c589_cs.c') diff --git a/drivers/net/pcmcia/3c589_cs.c b/drivers/net/pcmcia/3c589_cs.c index 09b96c76216..3516c02b9c8 100644 --- a/drivers/net/pcmcia/3c589_cs.c +++ b/drivers/net/pcmcia/3c589_cs.c @@ -166,8 +166,6 @@ static dev_info_t dev_info = "3c589_cs"; static dev_link_t *tc589_attach(void); static void tc589_detach(struct pcmcia_device *p_dev); -static dev_link_t *dev_list; - /*====================================================================== tc589_attach() creates an "instance" of the driver, allocating @@ -222,8 +220,7 @@ static dev_link_t *tc589_attach(void) SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops); /* Register with Card Services */ - link->next = dev_list; - dev_list = link; + link->next = NULL; client_reg.dev_info = &dev_info; client_reg.Version = 0x0210; client_reg.event_callback_args.client_data = link; @@ -250,15 +247,8 @@ static void tc589_detach(struct pcmcia_device *p_dev) { dev_link_t *link = dev_to_instance(p_dev); struct net_device *dev = link->priv; - dev_link_t **linkp; - + DEBUG(0, "3c589_detach(0x%p)\n", link); - - /* Locate device structure */ - for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) - if (*linkp == link) break; - if (*linkp == NULL) - return; if (link->dev) unregister_netdev(dev); @@ -266,8 +256,6 @@ static void tc589_detach(struct pcmcia_device *p_dev) if (link->state & DEV_CONFIG) tc589_release(link); - /* Unlink device structure, free bits */ - *linkp = link->next; free_netdev(dev); } /* tc589_detach */ @@ -1085,7 +1073,6 @@ static int __init init_tc589(void) static void __exit exit_tc589(void) { pcmcia_unregister_driver(&tc589_driver); - BUG_ON(dev_list != NULL); } module_init(init_tc589); -- cgit v1.2.3-18-g5258 From f8cfa618dccbdc6dab5297f75779566a388a98fd Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Mon, 14 Nov 2005 21:25:51 +0100 Subject: [PATCH] pcmcia: unify attach, EVENT_CARD_INSERTION handlers into one probe callback Unify the EVENT_CARD_INSERTION and "attach" callbacks to one unified probe() callback. As all in-kernel drivers are changed to this new callback, there will be no temporary backwards-compatibility. Inside a probe() function, each driver _must_ set struct pcmcia_device *p_dev->instance and instance->handle correctly. With these patches, the basic driver interface for 16-bit PCMCIA drivers now has the classic four callbacks known also from other buses: int (*probe) (struct pcmcia_device *dev); void (*remove) (struct pcmcia_device *dev); int (*suspend) (struct pcmcia_device *dev); int (*resume) (struct pcmcia_device *dev); Signed-off-by: Dominik Brodowski --- drivers/net/pcmcia/3c589_cs.c | 63 +++++++++---------------------------------- 1 file changed, 12 insertions(+), 51 deletions(-) (limited to 'drivers/net/pcmcia/3c589_cs.c') diff --git a/drivers/net/pcmcia/3c589_cs.c b/drivers/net/pcmcia/3c589_cs.c index 3516c02b9c8..1c3c9c666f7 100644 --- a/drivers/net/pcmcia/3c589_cs.c +++ b/drivers/net/pcmcia/3c589_cs.c @@ -143,8 +143,6 @@ DRV_NAME ".c " DRV_VERSION " 2001/10/13 00:08:50 (David Hinds)"; static void tc589_config(dev_link_t *link); static void tc589_release(dev_link_t *link); -static int tc589_event(event_t event, int priority, - event_callback_args_t *args); static u16 read_eeprom(kio_addr_t ioaddr, int index); static void tc589_reset(struct net_device *dev); @@ -161,9 +159,6 @@ static void el3_tx_timeout(struct net_device *dev); static void set_multicast_list(struct net_device *dev); static struct ethtool_ops netdev_ethtool_ops; -static dev_info_t dev_info = "3c589_cs"; - -static dev_link_t *tc589_attach(void); static void tc589_detach(struct pcmcia_device *p_dev); /*====================================================================== @@ -174,20 +169,18 @@ static void tc589_detach(struct pcmcia_device *p_dev); ======================================================================*/ -static dev_link_t *tc589_attach(void) +static int tc589_attach(struct pcmcia_device *p_dev) { struct el3_private *lp; - client_reg_t client_reg; dev_link_t *link; struct net_device *dev; - int ret; DEBUG(0, "3c589_attach()\n"); - + /* Create new ethernet device */ dev = alloc_etherdev(sizeof(struct el3_private)); if (!dev) - return NULL; + return -ENOMEM; lp = netdev_priv(dev); link = &lp->link; link->priv = dev; @@ -204,7 +197,7 @@ static dev_link_t *tc589_attach(void) link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 1; link->conf.Present = PRESENT_OPTION; - + /* The EL3-specific entries in the device structure. */ SET_MODULE_OWNER(dev); dev->hard_start_xmit = &el3_start_xmit; @@ -219,19 +212,13 @@ static dev_link_t *tc589_attach(void) #endif SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops); - /* Register with Card Services */ - link->next = NULL; - client_reg.dev_info = &dev_info; - client_reg.Version = 0x0210; - client_reg.event_callback_args.client_data = link; - ret = pcmcia_register_client(&link->handle, &client_reg); - if (ret != 0) { - cs_error(link->handle, RegisterClient, ret); - tc589_detach(link->handle); - return NULL; - } - - return link; + link->handle = p_dev; + p_dev->instance = link; + + link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; + tc589_config(link); + + return 0; } /* tc589_attach */ /*====================================================================== @@ -439,31 +426,6 @@ static int tc589_resume(struct pcmcia_device *p_dev) return 0; } -/*====================================================================== - - The card status event handler. Mostly, this schedules other - stuff to run after an event is received. A CARD_REMOVAL event - also sets some flags to discourage the net drivers from trying - to talk to the card any more. - -======================================================================*/ - -static int tc589_event(event_t event, int priority, - event_callback_args_t *args) -{ - dev_link_t *link = args->client_data; - - DEBUG(1, "3c589_event(0x%06x)\n", event); - - switch (event) { - case CS_EVENT_CARD_INSERTION: - link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; - tc589_config(link); - break; - } - return 0; -} /* tc589_event */ - /*====================================================================*/ /* @@ -1057,8 +1019,7 @@ static struct pcmcia_driver tc589_driver = { .drv = { .name = "3c589_cs", }, - .attach = tc589_attach, - .event = tc589_event, + .probe = tc589_attach, .remove = tc589_detach, .id_table = tc589_ids, .suspend = tc589_suspend, -- cgit v1.2.3-18-g5258