mirror of https://github.com/hak5/openwrt.git
279 lines
7.2 KiB
Diff
279 lines
7.2 KiB
Diff
From a1bf12e78294c6cd3d8747e1e07c48977ca1e3e3 Mon Sep 17 00:00:00 2001
|
|
From: Hauke Mehrtens <hauke@hauke-m.de>
|
|
Date: Sat, 11 Jun 2011 16:47:38 +0200
|
|
Subject: [PATCH 01/26] bcma: move parsing of EEPROM into own function.
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
Move the parsing of the EEPROM data in scan function for one core into
|
|
an own function. Now we are able to use it in some other scan function
|
|
as well.
|
|
|
|
Acked-by: Rafał Miłecki <zajec5@gmail.com>
|
|
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|
---
|
|
drivers/bcma/scan.c | 230 ++++++++++++++++++++++++++-------------------------
|
|
1 files changed, 118 insertions(+), 112 deletions(-)
|
|
|
|
--- a/drivers/bcma/scan.c
|
|
+++ b/drivers/bcma/scan.c
|
|
@@ -200,16 +200,124 @@ static s32 bcma_erom_get_addr_desc(struc
|
|
return addrl;
|
|
}
|
|
|
|
+static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr,
|
|
+ struct bcma_device *core)
|
|
+{
|
|
+ s32 tmp;
|
|
+ u8 i, j;
|
|
+ s32 cia, cib;
|
|
+ u8 ports[2], wrappers[2];
|
|
+
|
|
+ /* get CIs */
|
|
+ cia = bcma_erom_get_ci(bus, eromptr);
|
|
+ if (cia < 0) {
|
|
+ bcma_erom_push_ent(eromptr);
|
|
+ if (bcma_erom_is_end(bus, eromptr))
|
|
+ return -ESPIPE;
|
|
+ return -EILSEQ;
|
|
+ }
|
|
+ cib = bcma_erom_get_ci(bus, eromptr);
|
|
+ if (cib < 0)
|
|
+ return -EILSEQ;
|
|
+
|
|
+ /* parse CIs */
|
|
+ core->id.class = (cia & SCAN_CIA_CLASS) >> SCAN_CIA_CLASS_SHIFT;
|
|
+ core->id.id = (cia & SCAN_CIA_ID) >> SCAN_CIA_ID_SHIFT;
|
|
+ core->id.manuf = (cia & SCAN_CIA_MANUF) >> SCAN_CIA_MANUF_SHIFT;
|
|
+ ports[0] = (cib & SCAN_CIB_NMP) >> SCAN_CIB_NMP_SHIFT;
|
|
+ ports[1] = (cib & SCAN_CIB_NSP) >> SCAN_CIB_NSP_SHIFT;
|
|
+ wrappers[0] = (cib & SCAN_CIB_NMW) >> SCAN_CIB_NMW_SHIFT;
|
|
+ wrappers[1] = (cib & SCAN_CIB_NSW) >> SCAN_CIB_NSW_SHIFT;
|
|
+ core->id.rev = (cib & SCAN_CIB_REV) >> SCAN_CIB_REV_SHIFT;
|
|
+
|
|
+ if (((core->id.manuf == BCMA_MANUF_ARM) &&
|
|
+ (core->id.id == 0xFFF)) ||
|
|
+ (ports[1] == 0)) {
|
|
+ bcma_erom_skip_component(bus, eromptr);
|
|
+ return -ENXIO;
|
|
+ }
|
|
+
|
|
+ /* check if component is a core at all */
|
|
+ if (wrappers[0] + wrappers[1] == 0) {
|
|
+ /* we could save addrl of the router
|
|
+ if (cid == BCMA_CORE_OOB_ROUTER)
|
|
+ */
|
|
+ bcma_erom_skip_component(bus, eromptr);
|
|
+ return -ENXIO;
|
|
+ }
|
|
+
|
|
+ if (bcma_erom_is_bridge(bus, eromptr)) {
|
|
+ bcma_erom_skip_component(bus, eromptr);
|
|
+ return -ENXIO;
|
|
+ }
|
|
+
|
|
+ /* get & parse master ports */
|
|
+ for (i = 0; i < ports[0]; i++) {
|
|
+ u32 mst_port_d = bcma_erom_get_mst_port(bus, eromptr);
|
|
+ if (mst_port_d < 0)
|
|
+ return -EILSEQ;
|
|
+ }
|
|
+
|
|
+ /* get & parse slave ports */
|
|
+ for (i = 0; i < ports[1]; i++) {
|
|
+ for (j = 0; ; j++) {
|
|
+ tmp = bcma_erom_get_addr_desc(bus, eromptr,
|
|
+ SCAN_ADDR_TYPE_SLAVE, i);
|
|
+ if (tmp < 0) {
|
|
+ /* no more entries for port _i_ */
|
|
+ /* pr_debug("erom: slave port %d "
|
|
+ * "has %d descriptors\n", i, j); */
|
|
+ break;
|
|
+ } else {
|
|
+ if (i == 0 && j == 0)
|
|
+ core->addr = tmp;
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+
|
|
+ /* get & parse master wrappers */
|
|
+ for (i = 0; i < wrappers[0]; i++) {
|
|
+ for (j = 0; ; j++) {
|
|
+ tmp = bcma_erom_get_addr_desc(bus, eromptr,
|
|
+ SCAN_ADDR_TYPE_MWRAP, i);
|
|
+ if (tmp < 0) {
|
|
+ /* no more entries for port _i_ */
|
|
+ /* pr_debug("erom: master wrapper %d "
|
|
+ * "has %d descriptors\n", i, j); */
|
|
+ break;
|
|
+ } else {
|
|
+ if (i == 0 && j == 0)
|
|
+ core->wrap = tmp;
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+
|
|
+ /* get & parse slave wrappers */
|
|
+ for (i = 0; i < wrappers[1]; i++) {
|
|
+ u8 hack = (ports[1] == 1) ? 0 : 1;
|
|
+ for (j = 0; ; j++) {
|
|
+ tmp = bcma_erom_get_addr_desc(bus, eromptr,
|
|
+ SCAN_ADDR_TYPE_SWRAP, i + hack);
|
|
+ if (tmp < 0) {
|
|
+ /* no more entries for port _i_ */
|
|
+ /* pr_debug("erom: master wrapper %d "
|
|
+ * has %d descriptors\n", i, j); */
|
|
+ break;
|
|
+ } else {
|
|
+ if (wrappers[0] == 0 && !i && !j)
|
|
+ core->wrap = tmp;
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+ return 0;
|
|
+}
|
|
+
|
|
int bcma_bus_scan(struct bcma_bus *bus)
|
|
{
|
|
u32 erombase;
|
|
u32 __iomem *eromptr, *eromend;
|
|
|
|
- s32 cia, cib;
|
|
- u8 ports[2], wrappers[2];
|
|
-
|
|
s32 tmp;
|
|
- u8 i, j;
|
|
|
|
int err;
|
|
|
|
@@ -236,112 +344,13 @@ int bcma_bus_scan(struct bcma_bus *bus)
|
|
INIT_LIST_HEAD(&core->list);
|
|
core->bus = bus;
|
|
|
|
- /* get CIs */
|
|
- cia = bcma_erom_get_ci(bus, &eromptr);
|
|
- if (cia < 0) {
|
|
- bcma_erom_push_ent(&eromptr);
|
|
- if (bcma_erom_is_end(bus, &eromptr))
|
|
- break;
|
|
- err= -EILSEQ;
|
|
- goto out;
|
|
- }
|
|
- cib = bcma_erom_get_ci(bus, &eromptr);
|
|
- if (cib < 0) {
|
|
- err= -EILSEQ;
|
|
- goto out;
|
|
- }
|
|
-
|
|
- /* parse CIs */
|
|
- core->id.class = (cia & SCAN_CIA_CLASS) >> SCAN_CIA_CLASS_SHIFT;
|
|
- core->id.id = (cia & SCAN_CIA_ID) >> SCAN_CIA_ID_SHIFT;
|
|
- core->id.manuf = (cia & SCAN_CIA_MANUF) >> SCAN_CIA_MANUF_SHIFT;
|
|
- ports[0] = (cib & SCAN_CIB_NMP) >> SCAN_CIB_NMP_SHIFT;
|
|
- ports[1] = (cib & SCAN_CIB_NSP) >> SCAN_CIB_NSP_SHIFT;
|
|
- wrappers[0] = (cib & SCAN_CIB_NMW) >> SCAN_CIB_NMW_SHIFT;
|
|
- wrappers[1] = (cib & SCAN_CIB_NSW) >> SCAN_CIB_NSW_SHIFT;
|
|
- core->id.rev = (cib & SCAN_CIB_REV) >> SCAN_CIB_REV_SHIFT;
|
|
-
|
|
- if (((core->id.manuf == BCMA_MANUF_ARM) &&
|
|
- (core->id.id == 0xFFF)) ||
|
|
- (ports[1] == 0)) {
|
|
- bcma_erom_skip_component(bus, &eromptr);
|
|
+ err = bcma_get_next_core(bus, &eromptr, core);
|
|
+ if (err == -ENXIO)
|
|
continue;
|
|
- }
|
|
-
|
|
- /* check if component is a core at all */
|
|
- if (wrappers[0] + wrappers[1] == 0) {
|
|
- /* we could save addrl of the router
|
|
- if (cid == BCMA_CORE_OOB_ROUTER)
|
|
- */
|
|
- bcma_erom_skip_component(bus, &eromptr);
|
|
- continue;
|
|
- }
|
|
-
|
|
- if (bcma_erom_is_bridge(bus, &eromptr)) {
|
|
- bcma_erom_skip_component(bus, &eromptr);
|
|
- continue;
|
|
- }
|
|
-
|
|
- /* get & parse master ports */
|
|
- for (i = 0; i < ports[0]; i++) {
|
|
- u32 mst_port_d = bcma_erom_get_mst_port(bus, &eromptr);
|
|
- if (mst_port_d < 0) {
|
|
- err= -EILSEQ;
|
|
- goto out;
|
|
- }
|
|
- }
|
|
-
|
|
- /* get & parse slave ports */
|
|
- for (i = 0; i < ports[1]; i++) {
|
|
- for (j = 0; ; j++) {
|
|
- tmp = bcma_erom_get_addr_desc(bus, &eromptr,
|
|
- SCAN_ADDR_TYPE_SLAVE, i);
|
|
- if (tmp < 0) {
|
|
- /* no more entries for port _i_ */
|
|
- /* pr_debug("erom: slave port %d "
|
|
- * "has %d descriptors\n", i, j); */
|
|
- break;
|
|
- } else {
|
|
- if (i == 0 && j == 0)
|
|
- core->addr = tmp;
|
|
- }
|
|
- }
|
|
- }
|
|
-
|
|
- /* get & parse master wrappers */
|
|
- for (i = 0; i < wrappers[0]; i++) {
|
|
- for (j = 0; ; j++) {
|
|
- tmp = bcma_erom_get_addr_desc(bus, &eromptr,
|
|
- SCAN_ADDR_TYPE_MWRAP, i);
|
|
- if (tmp < 0) {
|
|
- /* no more entries for port _i_ */
|
|
- /* pr_debug("erom: master wrapper %d "
|
|
- * "has %d descriptors\n", i, j); */
|
|
- break;
|
|
- } else {
|
|
- if (i == 0 && j == 0)
|
|
- core->wrap = tmp;
|
|
- }
|
|
- }
|
|
- }
|
|
-
|
|
- /* get & parse slave wrappers */
|
|
- for (i = 0; i < wrappers[1]; i++) {
|
|
- u8 hack = (ports[1] == 1) ? 0 : 1;
|
|
- for (j = 0; ; j++) {
|
|
- tmp = bcma_erom_get_addr_desc(bus, &eromptr,
|
|
- SCAN_ADDR_TYPE_SWRAP, i + hack);
|
|
- if (tmp < 0) {
|
|
- /* no more entries for port _i_ */
|
|
- /* pr_debug("erom: master wrapper %d "
|
|
- * has %d descriptors\n", i, j); */
|
|
- break;
|
|
- } else {
|
|
- if (wrappers[0] == 0 && !i && !j)
|
|
- core->wrap = tmp;
|
|
- }
|
|
- }
|
|
- }
|
|
+ else if (err == -ESPIPE)
|
|
+ break;
|
|
+ else if (err < 0)
|
|
+ return err;
|
|
|
|
pr_info("Core %d found: %s "
|
|
"(manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n",
|
|
@@ -351,9 +360,6 @@ int bcma_bus_scan(struct bcma_bus *bus)
|
|
|
|
core->core_index = bus->nr_cores++;
|
|
list_add(&core->list, &bus->cores);
|
|
- continue;
|
|
-out:
|
|
- return err;
|
|
}
|
|
|
|
return 0;
|