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// SPDX-License-Identifier: ISC
/*
* Copyright (c) 2014 Broadcom Corporation
*/
#include <linux/init.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_net.h>
#include <defs.h>
#include "debug.h"
#include "core.h"
#include "common.h"
#include "of.h"
static int brcmf_of_get_country_codes(struct device *dev,
struct brcmf_mp_device *settings)
{
struct device_node *np = dev->of_node;
struct brcmfmac_pd_cc_entry *cce;
struct brcmfmac_pd_cc *cc;
int count;
int i;
count = of_property_count_strings(np, "brcm,ccode-map");
if (count < 0) {
/* If no explicit country code map is specified, check whether
* the trivial map should be used.
*/
settings->trivial_ccode_map =
of_property_read_bool(np, "brcm,ccode-map-trivial");
/* The property is optional, so return success if it doesn't
* exist. Otherwise propagate the error code.
*/
return (count == -EINVAL) ? 0 : count;
}
cc = devm_kzalloc(dev, struct_size(cc, table, count), GFP_KERNEL);
if (!cc)
return -ENOMEM;
cc->table_size = count;
for (i = 0; i < count; i++) {
const char *map;
cce = &cc->table[i];
if (of_property_read_string_index(np, "brcm,ccode-map",
i, &map))
continue;
/* String format e.g. US-Q2-86 */
if (sscanf(map, "%2c-%2c-%d", cce->iso3166, cce->cc,
&cce->rev) != 3)
brcmf_err("failed to read country map %s\n", map);
else
brcmf_dbg(INFO, "%s-%s-%d\n", cce->iso3166, cce->cc,
cce->rev);
}
settings->country_codes = cc;
return 0;
}
void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
struct brcmf_mp_device *settings)
{
struct brcmfmac_sdio_pd *sdio = &settings->bus.sdio;
struct device_node *root, *np = dev->of_node;
const char *prop;
int irq;
int err;
u32 irqf;
u32 val;
/* Apple ARM64 platforms have their own idea of board type, passed in
* via the device tree. They also have an antenna SKU parameter
*/
err = of_property_read_string(np, "brcm,board-type", &prop);
if (!err)
settings->board_type = prop;
if (!of_property_read_string(np, "apple,antenna-sku", &prop))
settings->antenna_sku = prop;
/* The WLAN calibration blob is normally stored in SROM, but Apple
* ARM64 platforms pass it via the DT instead.
*/
prop = of_get_property(np, "brcm,cal-blob", &settings->cal_size);
if (prop && settings->cal_size)
settings->cal_blob = prop;
/* Set board-type to the first string of the machine compatible prop */
root = of_find_node_by_path("/");
if (root && err) {
char *board_type;
const char *tmp;
of_property_read_string_index(root, "compatible", 0, &tmp);
/* get rid of '/' in the compatible string to be able to find the FW */
board_type = devm_kstrdup(dev, tmp, GFP_KERNEL);
if (!board_type) {
of_node_put(root);
return;
}
strreplace(board_type, '/', '-');
settings->board_type = board_type;
of_node_put(root);
}
if (!np || !of_device_is_compatible(np, "brcm,bcm4329-fmac"))
return;
err = brcmf_of_get_country_codes(dev, settings);
if (err)
brcmf_err("failed to get OF country code map (err=%d)\n", err);
of_get_mac_address(np, settings->mac);
if (bus_type != BRCMF_BUSTYPE_SDIO)
return;
if (of_property_read_u32(np, "brcm,drive-strength", &val) == 0)
sdio->drive_strength = val;
/* make sure there are interrupts defined in the node */
if (!of_property_present(np, "interrupts"))
return;
irq = irq_of_parse_and_map(np, 0);
if (!irq) {
brcmf_err("interrupt could not be mapped\n");
return;
}
irqf = irqd_get_trigger_type(irq_get_irq_data(irq));
sdio->oob_irq_supported = true;
sdio->oob_irq_nr = irq;
sdio->oob_irq_flags = irqf;
}
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