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author | Greg Kroah-Hartman <greg@kroah.com> | 2014-12-11 17:10:55 -0500 |
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committer | Greg Kroah-Hartman <greg@kroah.com> | 2014-12-11 19:53:59 -0500 |
commit | e50522209a2e86ffac2d8c9a99c0979914cff5dd (patch) | |
tree | a12bcdfafaad4dce61f2bcbb611d25206c4b9a94 /drivers/staging/greybus/module.c | |
parent | 1cd9ba1477f25e9137403162092452f176dd30b4 (diff) | |
download | linux-e50522209a2e86ffac2d8c9a99c0979914cff5dd.tar.gz linux-e50522209a2e86ffac2d8c9a99c0979914cff5dd.tar.bz2 linux-e50522209a2e86ffac2d8c9a99c0979914cff5dd.zip |
greybus: interface_block: rename module.[c|h] to interface_block.[c|h]
"modules" in the driver model here, are really "interface blocks" as
that is what they are physically tied to. So rename the files before we
start changing the code to make it obvious what is going on.
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
Diffstat (limited to 'drivers/staging/greybus/module.c')
-rw-r--r-- | drivers/staging/greybus/module.c | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/drivers/staging/greybus/module.c b/drivers/staging/greybus/module.c deleted file mode 100644 index c424a5ac25e7..000000000000 --- a/drivers/staging/greybus/module.c +++ /dev/null @@ -1,201 +0,0 @@ -/* - * Greybus modules - * - * Copyright 2014 Google Inc. - * - * Released under the GPLv2 only. - */ - -#include "greybus.h" - -/* XXX This could be per-host device */ -static DEFINE_SPINLOCK(gb_modules_lock); - -static int gb_module_match_one_id(struct gb_module *gmod, - const struct greybus_module_id *id) -{ - if ((id->match_flags & GREYBUS_DEVICE_ID_MATCH_VENDOR) && - (id->vendor != gmod->vendor)) - return 0; - - if ((id->match_flags & GREYBUS_DEVICE_ID_MATCH_PRODUCT) && - (id->product != gmod->product)) - return 0; - - if ((id->match_flags & GREYBUS_DEVICE_ID_MATCH_SERIAL) && - (id->unique_id != gmod->unique_id)) - return 0; - - return 1; -} - -const struct greybus_module_id *gb_module_match_id(struct gb_module *gmod, - const struct greybus_module_id *id) -{ - if (id == NULL) - return NULL; - - for (; id->vendor || id->product || id->unique_id || - id->driver_info; id++) { - if (gb_module_match_one_id(gmod, id)) - return id; - } - - return NULL; -} - -struct gb_module *gb_module_find(struct greybus_host_device *hd, u8 module_id) -{ - struct gb_module *module; - - list_for_each_entry(module, &hd->modules, links) - if (module->module_id == module_id) - return module; - - return NULL; -} - -static void greybus_module_release(struct device *dev) -{ - struct gb_module *gmod = to_gb_module(dev); - - kfree(gmod); -} - -struct device_type greybus_module_type = { - .name = "greybus_module", - .release = greybus_module_release, -}; - -/* - * A Greybus module represents a user-replicable component on an Ara - * phone. - * - * Create a gb_module structure to represent a discovered module. - * The position within the Endo is encoded in the "module_id" argument. - * Returns a pointer to the new module or a null pointer if a - * failure occurs due to memory exhaustion. - */ -struct gb_module *gb_module_create(struct greybus_host_device *hd, u8 module_id) -{ - struct gb_module *gmod; - int retval; - - gmod = gb_module_find(hd, module_id); - if (gmod) { - dev_err(hd->parent, "Duplicate module id %d will not be created\n", - module_id); - return NULL; - } - - gmod = kzalloc(sizeof(*gmod), GFP_KERNEL); - if (!gmod) - return NULL; - - gmod->hd = hd; /* XXX refcount? */ - gmod->module_id = module_id; - INIT_LIST_HEAD(&gmod->interfaces); - - gmod->dev.parent = hd->parent; - gmod->dev.bus = &greybus_bus_type; - gmod->dev.type = &greybus_module_type; - gmod->dev.groups = greybus_module_groups; - gmod->dev.dma_mask = hd->parent->dma_mask; - device_initialize(&gmod->dev); - dev_set_name(&gmod->dev, "%d", module_id); - - retval = device_add(&gmod->dev); - if (retval) { - pr_err("failed to add module device for id 0x%02hhx\n", - module_id); - put_device(&gmod->dev); - kfree(gmod); - return NULL; - } - - spin_lock_irq(&gb_modules_lock); - list_add_tail(&gmod->links, &hd->modules); - spin_unlock_irq(&gb_modules_lock); - - return gmod; -} - -/* - * Tear down a previously set up module. - */ -void gb_module_destroy(struct gb_module *gmod) -{ - if (WARN_ON(!gmod)) - return; - - spin_lock_irq(&gb_modules_lock); - list_del(&gmod->links); - spin_unlock_irq(&gb_modules_lock); - - gb_interface_destroy(gmod); - - kfree(gmod->product_string); - kfree(gmod->vendor_string); - /* kref_put(module->hd); */ - - device_del(&gmod->dev); -} - -/** - * gb_add_module - * - * Pass in a buffer that _should_ contain a Greybus module manifest - * and register a greybus device structure with the kernel core. - */ -void gb_add_module(struct greybus_host_device *hd, u8 module_id, - u8 *data, int size) -{ - struct gb_module *gmod; - - gmod = gb_module_create(hd, module_id); - if (!gmod) { - dev_err(hd->parent, "failed to create module\n"); - return; - } - - /* - * Parse the manifest and build up our data structures - * representing what's in it. - */ - if (!gb_manifest_parse(gmod, data, size)) { - dev_err(hd->parent, "manifest error\n"); - goto err_module; - } - - /* - * XXX - * We've successfully parsed the manifest. Now we need to - * allocate CPort Id's for connecting to the CPorts found on - * other modules. For each of these, establish a connection - * between the local and remote CPorts (including - * configuring the switch to allow them to communicate). - */ - - return; - -err_module: - gb_module_destroy(gmod); -} - -void gb_remove_module(struct greybus_host_device *hd, u8 module_id) -{ - struct gb_module *gmod = gb_module_find(hd, module_id); - - if (gmod) - gb_module_destroy(gmod); - else - dev_err(hd->parent, "module id %d not found\n", module_id); -} - -void gb_remove_modules(struct greybus_host_device *hd) -{ - struct gb_module *gmod, *temp; - - list_for_each_entry_safe(gmod, temp, &hd->modules, links) - gb_module_destroy(gmod); -} |