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author | Sascha Hauer <s.hauer@pengutronix.de> | 2013-11-25 15:39:11 +0100 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2013-11-27 10:42:54 +0100 |
commit | f92f309c54996e0b4d09953820919161fbecac1d (patch) | |
tree | 4cdd66efc24941724fb7b2dbcd865037e8071035 /drivers/base | |
parent | 54f55d79d92986477c08791fe8cbdef32e3eae6f (diff) | |
download | barebox-f92f309c54996e0b4d09953820919161fbecac1d.tar.gz barebox-f92f309c54996e0b4d09953820919161fbecac1d.tar.xz |
device: Add functions to add resources
We currently have functions to add a device based on function parameters.
This adds the corresponding functions to add resources to a device without
registering the device itself. This is useful to manipulate devices before
registering them.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/base')
-rw-r--r-- | drivers/base/resource.c | 60 |
1 files changed, 47 insertions, 13 deletions
diff --git a/drivers/base/resource.c b/drivers/base/resource.c index 2985c78e39..71ae0fe3cc 100644 --- a/drivers/base/resource.c +++ b/drivers/base/resource.c @@ -20,33 +20,67 @@ #include <common.h> #include <driver.h> #include <xfuncs.h> +#include <malloc.h> -static struct device_d *alloc_device(const char* devname, int id, void *pdata) +struct device_d *device_alloc(const char *devname, int id) { struct device_d *dev; dev = xzalloc(sizeof(*dev)); strcpy(dev->name, devname); dev->id = id; - dev->platform_data = pdata; return dev; } +int device_add_data(struct device_d *dev, void *data, size_t size) +{ + free(dev->platform_data); + + if (data) + dev->platform_data = xmemdup(data, size); + else + dev->platform_data = NULL; + + return 0; +} + +int device_add_resources(struct device_d *dev, const struct resource *res, int num) +{ + dev->resource = xmemdup(res, sizeof(*res) * num); + dev->num_resources = num; + + return 0; +} + +int device_add_resource(struct device_d *dev, const char *resname, + resource_size_t start, resource_size_t size, unsigned int flags) +{ + struct resource res = { + .start = start, + .end = start + size - 1, + .flags = flags, + }; + + if (resname) + res.name = xstrdup(resname); + + return device_add_resources(dev, &res, 1); +} + struct device_d *add_generic_device(const char* devname, int id, const char *resname, resource_size_t start, resource_size_t size, unsigned int flags, void *pdata) { - struct resource *res; + struct device_d *dev; - res = xzalloc(sizeof(struct resource)); - if (resname) - res[0].name = xstrdup(resname); - res[0].start = start; - res[0].end = start + size - 1; - res[0].flags = flags; + dev = device_alloc(devname, id); + dev->platform_data = pdata; + device_add_resource(dev, resname, start, size, flags); + + platform_device_register(dev); - return add_generic_device_res(devname, id, res, 1, pdata); + return dev; } EXPORT_SYMBOL(add_generic_device); @@ -55,9 +89,9 @@ struct device_d *add_generic_device_res(const char* devname, int id, { struct device_d *dev; - dev = alloc_device(devname, id, pdata); - dev->resource = res; - dev->num_resources = nb; + dev = device_alloc(devname, id); + dev->platform_data = pdata; + device_add_resources(dev, res, nb); platform_device_register(dev); |