aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/nubus
diff options
context:
space:
mode:
authorFinn Thain <fthain@telegraphics.com.au>2018-01-13 17:37:13 -0500
committerGeert Uytterhoeven <geert@linux-m68k.org>2018-01-16 16:47:29 +0100
commit189e19e8cbb49f5bf483e55bdbd1e56d3d6bcf75 (patch)
tree8965cd03d125100f4788e69d2be0fcf92d31ed1f /drivers/nubus
parent2f7dd07ecadac6bdc3d55c217d65efa2834ba1cb (diff)
nubus: Rename struct nubus_dev
It is misleading to call a functional resource a "device". In adopting the Linux Driver Model, the struct device will be embedded in struct nubus_board. That will compound the terminlogy problem because drivers will bind with boards, not with functional resources. Avoid this by renaming struct nubus_dev as struct nubus_rsrc. "Functional resource" is the vendor's terminology so this helps avoid confusion. Cc: "David S. Miller" <davem@davemloft.net> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Tested-by: Stan Johnson <userm57@yahoo.com> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'drivers/nubus')
-rw-r--r--drivers/nubus/nubus.c105
-rw-r--r--drivers/nubus/proc.c15
2 files changed, 58 insertions, 62 deletions
diff --git a/drivers/nubus/nubus.c b/drivers/nubus/nubus.c
index f05541914c21..3657b13c0022 100644
--- a/drivers/nubus/nubus.c
+++ b/drivers/nubus/nubus.c
@@ -32,7 +32,7 @@
/* Globals */
-struct nubus_dev *nubus_devices;
+struct nubus_rsrc *nubus_func_rsrcs;
struct nubus_board *nubus_boards;
/* Meaning of "bytelanes":
@@ -228,12 +228,11 @@ int nubus_get_root_dir(const struct nubus_board *board,
EXPORT_SYMBOL(nubus_get_root_dir);
/* This is a slyly renamed version of the above */
-int nubus_get_func_dir(const struct nubus_dev *dev,
- struct nubus_dir *dir)
+int nubus_get_func_dir(const struct nubus_rsrc *fres, struct nubus_dir *dir)
{
- dir->ptr = dir->base = dev->directory;
+ dir->ptr = dir->base = fres->directory;
dir->done = 0;
- dir->mask = dev->board->lanes;
+ dir->mask = fres->board->lanes;
return 0;
}
EXPORT_SYMBOL(nubus_get_func_dir);
@@ -306,11 +305,10 @@ EXPORT_SYMBOL(nubus_rewinddir);
/* Driver interface functions, more or less like in pci.c */
-struct nubus_dev*
-nubus_find_type(unsigned short category, unsigned short type,
- const struct nubus_dev *from)
+struct nubus_rsrc *nubus_find_type(unsigned short category, unsigned short type,
+ const struct nubus_rsrc *from)
{
- struct nubus_dev *itor = from ? from->next : nubus_devices;
+ struct nubus_rsrc *itor = from ? from->next : nubus_func_rsrcs;
while (itor) {
if (itor->category == category && itor->type == type)
@@ -321,10 +319,10 @@ nubus_find_type(unsigned short category, unsigned short type,
}
EXPORT_SYMBOL(nubus_find_type);
-struct nubus_dev*
-nubus_find_slot(unsigned int slot, const struct nubus_dev *from)
+struct nubus_rsrc *nubus_find_slot(unsigned int slot,
+ const struct nubus_rsrc *from)
{
- struct nubus_dev *itor = from ? from->next : nubus_devices;
+ struct nubus_rsrc *itor = from ? from->next : nubus_func_rsrcs;
while (itor) {
if (itor->board->slot == slot)
@@ -403,19 +401,19 @@ static int __init nubus_get_display_vidmode(struct nubus_board *board,
return 0;
}
-static int __init nubus_get_display_resource(struct nubus_dev *dev,
+static int __init nubus_get_display_resource(struct nubus_rsrc *fres,
struct proc_dir_entry *procdir,
const struct nubus_dirent *ent)
{
switch (ent->type) {
case NUBUS_RESID_GAMMADIR:
pr_debug(" gamma directory offset: 0x%06x\n", ent->data);
- nubus_get_block_rsrc_dir(dev->board, procdir, ent);
+ nubus_get_block_rsrc_dir(fres->board, procdir, ent);
break;
case 0x0080 ... 0x0085:
pr_debug(" mode 0x%02x info offset: 0x%06x\n",
ent->type, ent->data);
- nubus_get_display_vidmode(dev->board, procdir, ent);
+ nubus_get_display_vidmode(fres->board, procdir, ent);
break;
default:
pr_debug(" unknown resource 0x%02x, data 0x%06x\n",
@@ -425,7 +423,7 @@ static int __init nubus_get_display_resource(struct nubus_dev *dev,
return 0;
}
-static int __init nubus_get_network_resource(struct nubus_dev *dev,
+static int __init nubus_get_network_resource(struct nubus_rsrc *fres,
struct proc_dir_entry *procdir,
const struct nubus_dirent *ent)
{
@@ -447,7 +445,7 @@ static int __init nubus_get_network_resource(struct nubus_dev *dev,
return 0;
}
-static int __init nubus_get_cpu_resource(struct nubus_dev *dev,
+static int __init nubus_get_cpu_resource(struct nubus_rsrc *fres,
struct proc_dir_entry *procdir,
const struct nubus_dirent *ent)
{
@@ -480,19 +478,19 @@ static int __init nubus_get_cpu_resource(struct nubus_dev *dev,
return 0;
}
-static int __init nubus_get_private_resource(struct nubus_dev *dev,
+static int __init nubus_get_private_resource(struct nubus_rsrc *fres,
struct proc_dir_entry *procdir,
const struct nubus_dirent *ent)
{
- switch (dev->category) {
+ switch (fres->category) {
case NUBUS_CAT_DISPLAY:
- nubus_get_display_resource(dev, procdir, ent);
+ nubus_get_display_resource(fres, procdir, ent);
break;
case NUBUS_CAT_NETWORK:
- nubus_get_network_resource(dev, procdir, ent);
+ nubus_get_network_resource(fres, procdir, ent);
break;
case NUBUS_CAT_CPU:
- nubus_get_cpu_resource(dev, procdir, ent);
+ nubus_get_cpu_resource(fres, procdir, ent);
break;
default:
pr_debug(" unknown resource 0x%02x, data 0x%06x\n",
@@ -502,24 +500,25 @@ static int __init nubus_get_private_resource(struct nubus_dev *dev,
return 0;
}
-static struct nubus_dev * __init
+static struct nubus_rsrc * __init
nubus_get_functional_resource(struct nubus_board *board, int slot,
const struct nubus_dirent *parent)
{
struct nubus_dir dir;
struct nubus_dirent ent;
- struct nubus_dev *dev;
+ struct nubus_rsrc *fres;
pr_debug(" Functional resource 0x%02x:\n", parent->type);
nubus_get_subdir(parent, &dir);
dir.procdir = nubus_proc_add_rsrc_dir(board->procdir, parent, board);
/* Actually we should probably panic if this fails */
- if ((dev = kzalloc(sizeof(*dev), GFP_ATOMIC)) == NULL)
+ fres = kzalloc(sizeof(*fres), GFP_ATOMIC);
+ if (!fres)
return NULL;
- dev->resid = parent->type;
- dev->directory = dir.base;
- dev->board = board;
+ fres->resid = parent->type;
+ fres->directory = dir.base;
+ fres->board = board;
while (nubus_readdir(&dir, &ent) != -1) {
switch (ent.type) {
@@ -528,10 +527,10 @@ nubus_get_functional_resource(struct nubus_board *board, int slot,
unsigned short nbtdata[4];
nubus_get_rsrc_mem(nbtdata, &ent, 8);
- dev->category = nbtdata[0];
- dev->type = nbtdata[1];
- dev->dr_sw = nbtdata[2];
- dev->dr_hw = nbtdata[3];
+ fres->category = nbtdata[0];
+ fres->type = nbtdata[1];
+ fres->dr_sw = nbtdata[2];
+ fres->dr_hw = nbtdata[3];
pr_debug(" type: [cat 0x%x type 0x%x sw 0x%x hw 0x%x]\n",
nbtdata[0], nbtdata[1], nbtdata[2], nbtdata[3]);
nubus_proc_add_rsrc_mem(dir.procdir, &ent, 8);
@@ -589,11 +588,11 @@ nubus_get_functional_resource(struct nubus_board *board, int slot,
default:
/* Local/Private resources have their own
function */
- nubus_get_private_resource(dev, dir.procdir, &ent);
+ nubus_get_private_resource(fres, dir.procdir, &ent);
}
}
- return dev;
+ return fres;
}
/* This is *really* cool. */
@@ -729,7 +728,6 @@ static int __init nubus_get_board_resource(struct nubus_board *board, int slot,
return 0;
}
-/* Add a board (might be many devices) to the list */
static struct nubus_board * __init nubus_add_board(int slot, int bytelanes)
{
struct nubus_board *board;
@@ -801,10 +799,11 @@ static struct nubus_board * __init nubus_add_board(int slot, int bytelanes)
pr_debug("Slot %X resources:\n", slot);
/* Each slot should have one board resource and any number of
- functional resources. So we'll fill in some fields in the
- struct nubus_board from the board resource, then walk down
- the list of functional resources, spinning out a nubus_dev
- for each of them. */
+ * functional resources. So we'll fill in some fields in the
+ * struct nubus_board from the board resource, then walk down
+ * the list of functional resources, spinning out a nubus_rsrc
+ * for each of them.
+ */
if (nubus_readdir(&dir, &ent) == -1) {
/* We can't have this! */
pr_err("Slot %X: Board resource not found!\n", slot);
@@ -819,32 +818,32 @@ static struct nubus_board * __init nubus_add_board(int slot, int bytelanes)
nubus_get_board_resource(board, slot, &ent);
while (nubus_readdir(&dir, &ent) != -1) {
- struct nubus_dev *dev;
- struct nubus_dev **devp;
+ struct nubus_rsrc *fres;
+ struct nubus_rsrc **fresp;
- dev = nubus_get_functional_resource(board, slot, &ent);
- if (dev == NULL)
+ fres = nubus_get_functional_resource(board, slot, &ent);
+ if (fres == NULL)
continue;
/* Resources should appear in ascending ID order. This sanity
* check prevents duplicate resource IDs.
*/
- if (dev->resid <= prev_resid) {
- kfree(dev);
+ if (fres->resid <= prev_resid) {
+ kfree(fres);
continue;
}
- prev_resid = dev->resid;
+ prev_resid = fres->resid;
/* We zeroed this out above */
- if (board->first_dev == NULL)
- board->first_dev = dev;
+ if (board->first_func_rsrc == NULL)
+ board->first_func_rsrc = fres;
- /* Put it on the global NuBus device chain. Keep entries in order. */
- for (devp = &nubus_devices; *devp != NULL;
- devp = &((*devp)->next))
+ /* Put it on the func. resource list. Keep entries in order. */
+ for (fresp = &nubus_func_rsrcs; *fresp != NULL;
+ fresp = &((*fresp)->next))
/* spin */;
- *devp = dev;
- dev->next = NULL;
+ *fresp = fres;
+ fres->next = NULL;
}
/* Put it on the global NuBus board chain. Keep entries in order. */
diff --git a/drivers/nubus/proc.c b/drivers/nubus/proc.c
index f47d90924ab4..f2b118330be0 100644
--- a/drivers/nubus/proc.c
+++ b/drivers/nubus/proc.c
@@ -36,17 +36,14 @@
static int
nubus_devices_proc_show(struct seq_file *m, void *v)
{
- struct nubus_dev *dev = nubus_devices;
+ struct nubus_rsrc *fres = nubus_func_rsrcs;
- while (dev) {
+ while (fres) {
seq_printf(m, "%x\t%04x %04x %04x %04x",
- dev->board->slot,
- dev->category,
- dev->type,
- dev->dr_sw,
- dev->dr_hw);
- seq_printf(m, "\t%08lx\n", dev->board->slot_addr);
- dev = dev->next;
+ fres->board->slot, fres->category, fres->type,
+ fres->dr_sw, fres->dr_hw);
+ seq_printf(m, "\t%08lx\n", fres->board->slot_addr);
+ fres = fres->next;
}
return 0;
}

Privacy Policy