/*
- * arch/ppc/syslib/ppc_sys.c
- *
* PPC System library functions
*
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
*
* Copyright 2005 Freescale Semiconductor Inc.
* Copyright 2005 MontaVista, Inc. by Vitaly Bordug <vbordug@ru.mvista.com>
* option) any later version.
*/
+#include <linux/string.h>
+#include <linux/bootmem.h>
#include <asm/ppc_sys.h>
int (*ppc_sys_device_fixup) (struct platform_device * pdev);
static int ppc_sys_inited;
+static int ppc_sys_func_inited;
+
+static const char *ppc_sys_func_names[] = {
+ [PPC_SYS_FUNC_DUMMY] = "dummy",
+ [PPC_SYS_FUNC_ETH] = "eth",
+ [PPC_SYS_FUNC_UART] = "uart",
+ [PPC_SYS_FUNC_HLDC] = "hldc",
+ [PPC_SYS_FUNC_USB] = "usb",
+ [PPC_SYS_FUNC_IRDA] = "irda",
+};
void __init identify_ppc_sys_by_id(u32 id)
{
void __init identify_ppc_sys_by_name(char *name)
{
unsigned int i = 0;
- while (ppc_sys_specs[i].ppc_sys_name[0])
- {
+ while (ppc_sys_specs[i].ppc_sys_name[0]) {
if (!strcmp(ppc_sys_specs[i].ppc_sys_name, name))
break;
i++;
}
cur_ppc_sys_spec = &ppc_sys_specs[i];
+
return;
}
matched[j++] = i;
i++;
}
+
+ ret = i;
+
if (j != 0) {
for (i = 0; i < j; i++) {
if ((ppc_sys_specs[matched[i]].mask & id) ==
}
}
+/* Platform-notify mapping
+ * Helper function for BSP code to assign board-specific platfom-divice bits
+ */
+
+void platform_notify_map(const struct platform_notify_dev_map *map,
+ struct device *dev)
+{
+ struct platform_device *pdev;
+ int len, idx;
+ const char *s;
+
+ /* do nothing if no device or no bus_id */
+ if (!dev || !dev->bus_id)
+ return;
+
+ /* call per device map */
+ while (map->bus_id != NULL) {
+ idx = -1;
+ s = strrchr(dev->bus_id, '.');
+ if (s != NULL)
+ idx = (int)simple_strtol(s + 1, NULL, 10);
+ else
+ s = dev->bus_id;
+
+ len = s - dev->bus_id;
+
+ if (!strncmp(dev->bus_id, map->bus_id, len)) {
+ pdev = container_of(dev, struct platform_device, dev);
+ map->rtn(pdev, idx);
+ }
+ map++;
+ }
+}
+
+/*
+ Function assignment stuff.
+ Intended to work as follows:
+ the device name defined in foo_devices.c will be concatenated with :"func",
+ where func is string map of respective function from platfom_device_func enum
+
+ The PPC_SYS_FUNC_DUMMY function is intended to remove all assignments, making the device to appear
+ in platform bus with unmodified name.
+ */
+
+/*
+ Here we'll replace .name pointers with fixed-lenght strings
+ Hereby, this should be called *before* any func stuff triggeded.
+ */
+void ppc_sys_device_initfunc(void)
+{
+ int i;
+ const char *name;
+ static char new_names[NUM_PPC_SYS_DEVS][BUS_ID_SIZE];
+ enum ppc_sys_devices cur_dev;
+
+ /* If inited yet, do nothing */
+ if (ppc_sys_func_inited)
+ return;
+
+ for (i = 0; i < cur_ppc_sys_spec->num_devices; i++) {
+ if ((cur_dev = cur_ppc_sys_spec->device_list[i]) < 0)
+ continue;
+
+ if (ppc_sys_platform_devices[cur_dev].name) {
+ /*backup name */
+ name = ppc_sys_platform_devices[cur_dev].name;
+ strlcpy(new_names[i], name, BUS_ID_SIZE);
+ ppc_sys_platform_devices[cur_dev].name = new_names[i];
+ }
+ }
+
+ ppc_sys_func_inited = 1;
+}
+
+/*The "engine" of the func stuff. Here we either concat specified function string description
+ to the name, or remove it if PPC_SYS_FUNC_DUMMY parameter is passed here*/
+void ppc_sys_device_setfunc(enum ppc_sys_devices dev,
+ enum platform_device_func func)
+{
+ char *s;
+ char *name = (char *)ppc_sys_platform_devices[dev].name;
+ char tmp[BUS_ID_SIZE];
+
+ if (!ppc_sys_func_inited) {
+ printk(KERN_ERR "Unable to alter function - not inited!\n");
+ return;
+ }
+
+ if (ppc_sys_inited) {
+ platform_device_unregister(&ppc_sys_platform_devices[dev]);
+ }
+
+ if ((s = (char *)strchr(name, ':')) != NULL) { /* reassign */
+ /* Either change the name after ':' or remove func modifications */
+ if (func != PPC_SYS_FUNC_DUMMY)
+ strlcpy(s + 1, ppc_sys_func_names[func], BUS_ID_SIZE);
+ else
+ *s = 0;
+ } else if (func != PPC_SYS_FUNC_DUMMY) {
+ /* do assignment if it is not just "clear" request */
+ sprintf(tmp, "%s:%s", name, ppc_sys_func_names[func]);
+ strlcpy(name, tmp, BUS_ID_SIZE);
+ }
+
+ if (ppc_sys_inited) {
+ platform_device_register(&ppc_sys_platform_devices[dev]);
+ }
+}
+
+void ppc_sys_device_disable(enum ppc_sys_devices dev)
+{
+ BUG_ON(cur_ppc_sys_spec == NULL);
+
+ /*Check if it is enabled*/
+ if(!(cur_ppc_sys_spec->config[dev] & PPC_SYS_CONFIG_DISABLED)) {
+ if (ppc_sys_inited) {
+ platform_device_unregister(&ppc_sys_platform_devices[dev]);
+ }
+ cur_ppc_sys_spec->config[dev] |= PPC_SYS_CONFIG_DISABLED;
+ }
+}
+
+void ppc_sys_device_enable(enum ppc_sys_devices dev)
+{
+ BUG_ON(cur_ppc_sys_spec == NULL);
+
+ /*Check if it is disabled*/
+ if(cur_ppc_sys_spec->config[dev] & PPC_SYS_CONFIG_DISABLED) {
+ if (ppc_sys_inited) {
+ platform_device_register(&ppc_sys_platform_devices[dev]);
+ }
+ cur_ppc_sys_spec->config[dev] &= ~PPC_SYS_CONFIG_DISABLED;
+ }
+
+}
+
+void ppc_sys_device_enable_all(void)
+{
+ enum ppc_sys_devices cur_dev;
+ int i;
+
+ for (i = 0; i < cur_ppc_sys_spec->num_devices; i++) {
+ cur_dev = cur_ppc_sys_spec->device_list[i];
+ ppc_sys_device_enable(cur_dev);
+ }
+}
+
+void ppc_sys_device_disable_all(void)
+{
+ enum ppc_sys_devices cur_dev;
+ int i;
+
+ for (i = 0; i < cur_ppc_sys_spec->num_devices; i++) {
+ cur_dev = cur_ppc_sys_spec->device_list[i];
+ ppc_sys_device_disable(cur_dev);
+ }
+}
+
+
static int __init ppc_sys_init(void)
{
unsigned int i, dev_id, ret = 0;
for (i = 0; i < cur_ppc_sys_spec->num_devices; i++) {
dev_id = cur_ppc_sys_spec->device_list[i];
- if (dev_id != -1) {
+ if ((dev_id != -1) &&
+ !(cur_ppc_sys_spec->config[dev_id] & PPC_SYS_CONFIG_DISABLED)) {
if (ppc_sys_device_fixup != NULL)
ppc_sys_device_fixup(&ppc_sys_platform_devices
[dev_id]);
git.samba.org / sfrench / cifs-2.6.git / blobdiff