/*
* Finds the device node with device_type "rtc" and opens it to
* execute the get-time method
*/
static int
todds1307_setup_prom()
{
pnode_t todnode;
char tod1307_devpath[MAXNAMELEN];
if ((todnode = prom_findnode_bydevtype(prom_rootnode(),
DS1307_DEVICE_TYPE)) == OBP_NONODE)
return (DDI_FAILURE);
/*
* We now have the phandle of the rtc node, we need to open the
* node and get the ihandle
*/
if (prom_phandle_to_path(todnode, tod1307_devpath,
sizeof (tod1307_devpath)) < 0) {
cmn_err(CE_WARN, "prom_phandle_to_path failed");
return (DDI_FAILURE);
}
/*
* Now open the node and store it's ihandle
*/
if ((todds1307_ihandle = prom_open(tod1307_devpath)) == NULL) {
cmn_err(CE_WARN, "prom_open failed");
return (DDI_FAILURE);
}
return (DDI_SUCCESS);
}
ihandle_t
get_parent_ihandle(ihandle_t child_ihandle)
{
char parent_name[OBP_MAXPATHLEN];
phandle_t child_phandle, parent_phandle;
child_phandle = prom_getphandle(child_ihandle);
parent_phandle = prom_parentnode(child_phandle);
prom_phandle_to_path(parent_phandle, parent_name, OBP_MAXPATHLEN);
return (prom_open(parent_name));
}
/*ARGSUSED*/
int
check_status(int id, char *buf, dev_info_t *parent)
{
char status_buf[64];
char devtype_buf[OBP_MAXPROPNAME];
char board_buf[32];
char path[OBP_MAXPATHLEN];
int boardnum;
int retval = DDI_FAILURE;
extern int status_okay(int, char *, int);
/*
* is the status okay?
*/
if (status_okay(id, status_buf, sizeof (status_buf)))
return (DDI_SUCCESS);
/*
* a status property indicating bad memory will be associated
* with a node which has a "device_type" property with a value of
* "memory-controller". in this situation, return DDI_SUCCESS
*/
if (getlongprop_buf(id, OBP_DEVICETYPE, devtype_buf,
sizeof (devtype_buf)) > 0) {
if (strcmp(devtype_buf, "memory-controller") == 0)
retval = DDI_SUCCESS;
}
/*
* get the full OBP pathname of this node
*/
if (prom_phandle_to_path((phandle_t)id, path, sizeof (path)) < 0)
cmn_err(CE_WARN, "prom_phandle_to_path(%d) failed", id);
/*
* get the board number, if one exists
*/
if ((boardnum = get_boardnum(id, parent)) >= 0)
(void) sprintf(board_buf, " on board %d", boardnum);
else
board_buf[0] = '\0';
/*
* print the status property information
*/
cmn_err(CE_WARN, "status '%s' for '%s'%s",
status_buf, path, board_buf);
return (retval);
}
/*
* If we don't already have a master SBBC selected,
* get the <sbbc> property from the /chosen node. If
* the pathname matches, this is the master SBBC and
* we set up the console/TOD SRAM mapping here.
*/
static void
sbbc_chosen_init(sbbc_softstate_t *softsp)
{
char master_sbbc[MAXNAMELEN];
char pn[MAXNAMELEN];
int nodeid, len;
pnode_t dnode;
if (master_chosen != FALSE) {
/*
* We've got one already
*/
return;
}
/*
* Get /chosen node info. prom interface will handle errors.
*/
dnode = prom_chosennode();
/*
* Look for the "iosram" property on the chosen node with a prom
* interface as ddi_find_devinfo() couldn't be used (calls
* ddi_walk_devs() that creates one extra lock on the device tree).
*/
if (prom_getprop(dnode, IOSRAM_CHOSEN_PROP, (caddr_t)&nodeid) <= 0) {
/*
* No I/O Board SBBC set up as console, what to do ?
*/
SBBC_ERR(CE_PANIC, "No SBBC found for Console/TOD \n");
}
if (prom_getprop(dnode, IOSRAM_TOC_PROP,
(caddr_t)&softsp->sram_toc) <= 0) {
/*
* SRAM TOC Offset defaults to 0
*/
SBBC_ERR(CE_WARN, "No SBBC TOC Offset found\n");
softsp->sram_toc = 0;
}
/*
* get the full OBP pathname of this node
*/
if (prom_phandle_to_path((phandle_t)nodeid, master_sbbc,
sizeof (master_sbbc)) < 0) {
SBBC_ERR1(CE_PANIC, "prom_phandle_to_path(%d) failed\n",
nodeid);
}
SGSBBC_DBG_ALL("chosen pathname : %s\n", master_sbbc);
SGSBBC_DBG_ALL("device pathname : %s\n", ddi_pathname(softsp->dip, pn));
if (strcmp(master_sbbc, ddi_pathname(softsp->dip, pn)) == 0) {
/*
* map in the SBBC regs
*/
if (sbbc_map_regs(softsp) != DDI_SUCCESS) {
SBBC_ERR(CE_PANIC, "Can't map the SBBC regs \n");
}
/*
* Only the 'chosen' node is used for iosram_read()/_write()
* Must initialise the tunnel before the console/tod
*
*/
if (iosram_tunnel_init(softsp) == DDI_FAILURE) {
SBBC_ERR(CE_PANIC, "Can't create the SRAM <-> SC "
"comm. tunnel \n");
}
master_chosen = TRUE;
/*
* Verify that an 'interrupts' property
* exists for this device
*/
if (ddi_getproplen(DDI_DEV_T_ANY, softsp->dip,
DDI_PROP_DONTPASS, "interrupts",
&len) != DDI_PROP_SUCCESS) {
SBBC_ERR(CE_PANIC, "No 'interrupts' property for the "
"'chosen' SBBC \n");
}
/*
* add the interrupt handler
* NB
* should this be a high-level interrupt ?
* NB
*/
if (sbbc_add_intr(softsp) == DDI_FAILURE) {
SBBC_ERR(CE_PANIC, "Can't add interrupt handler for "
"'chosen' SBBC \n");
}
sbbc_enable_intr(softsp);
/*
* Create the mailbox
*/
if (sbbc_mbox_create(softsp) != 0) {
cmn_err(CE_WARN, "No IOSRAM MailBox created!\n");
}
}
}
