openwrt/target/linux/bcm27xx/patches-4.19/950-0801-pisound-Added-reading-Pisound-board-hardware-revisio.patch
Adrian Schmutzler 7d7aa2fd92 brcm2708: rename target to bcm27xx
This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
2020-02-14 14:10:51 +01:00

202 lines
5.5 KiB
Diff

From a879ab9cad6b598c08988404934273d3cbfbd993 Mon Sep 17 00:00:00 2001
From: gtrainavicius <gtrainavicius@users.noreply.github.com>
Date: Tue, 28 Jan 2020 14:16:37 +0200
Subject: [PATCH] pisound: Added reading Pisound board hardware
revision and exposing it (#3425)
pisound: Added reading Pisound board hardware revision and exposing it in kernel log and sysfs file:
/sys/kernel/pisound/hw_version
Signed-off-by: Giedrius <giedrius@blokas.io>
---
sound/soc/bcm/pisound.c | 86 ++++++++++++++++++++++++++++-------------
1 file changed, 59 insertions(+), 27 deletions(-)
--- a/sound/soc/bcm/pisound.c
+++ b/sound/soc/bcm/pisound.c
@@ -51,7 +51,8 @@ static void pisnd_spi_set_callback(pisnd
static const char *pisnd_spi_get_serial(void);
static const char *pisnd_spi_get_id(void);
-static const char *pisnd_spi_get_version(void);
+static const char *pisnd_spi_get_fw_version(void);
+static const char *pisnd_spi_get_hw_version(void);
static int pisnd_midi_init(struct snd_card *card);
static void pisnd_midi_uninit(void);
@@ -222,7 +223,9 @@ static pisnd_spi_recv_cb g_recvCallback;
static char g_serial_num[11];
static char g_id[25];
-static char g_version[5];
+enum { MAX_VERSION_STR_LEN = 6 };
+static char g_fw_version[MAX_VERSION_STR_LEN];
+static char g_hw_version[MAX_VERSION_STR_LEN];
static uint8_t g_ledFlashDuration;
static bool g_ledFlashDurationChanged;
@@ -558,7 +561,8 @@ static int spi_read_info(void)
char *p;
memset(g_serial_num, 0, sizeof(g_serial_num));
- memset(g_version, 0, sizeof(g_version));
+ memset(g_fw_version, 0, sizeof(g_fw_version));
+ strcpy(g_hw_version, "1.0"); // Assume 1.0 hw version.
memset(g_id, 0, sizeof(g_id));
tmp = spi_transfer16(0);
@@ -581,12 +585,28 @@ static int spi_read_info(void)
return -EINVAL;
snprintf(
- g_version,
- sizeof(g_version),
+ g_fw_version,
+ MAX_VERSION_STR_LEN,
"%x.%02x",
buffer[0],
buffer[1]
);
+
+ g_fw_version[MAX_VERSION_STR_LEN-1] = '\0';
+ break;
+ case 3:
+ if (n != 2)
+ return -EINVAL;
+
+ snprintf(
+ g_hw_version,
+ MAX_VERSION_STR_LEN,
+ "%x.%x",
+ buffer[0],
+ buffer[1]
+ );
+
+ g_hw_version[MAX_VERSION_STR_LEN-1] = '\0';
break;
case 1:
if (n >= sizeof(g_serial_num))
@@ -596,12 +616,14 @@ static int spi_read_info(void)
break;
case 2:
{
- if (n >= sizeof(g_id))
+ if (n*2 >= sizeof(g_id))
return -EINVAL;
p = g_id;
for (j = 0; j < n; ++j)
p += sprintf(p, "%02x", buffer[j]);
+
+ *p = '\0';
}
break;
default:
@@ -619,7 +641,8 @@ static int pisnd_spi_init(struct device
memset(g_serial_num, 0, sizeof(g_serial_num));
memset(g_id, 0, sizeof(g_id));
- memset(g_version, 0, sizeof(g_version));
+ memset(g_fw_version, 0, sizeof(g_fw_version));
+ memset(g_hw_version, 0, sizeof(g_hw_version));
spi = pisnd_spi_find_device();
@@ -729,26 +752,22 @@ static void pisnd_spi_set_callback(pisnd
static const char *pisnd_spi_get_serial(void)
{
- if (strlen(g_serial_num))
- return g_serial_num;
-
- return "";
+ return g_serial_num;
}
static const char *pisnd_spi_get_id(void)
{
- if (strlen(g_id))
- return g_id;
-
- return "";
+ return g_id;
}
-static const char *pisnd_spi_get_version(void)
+static const char *pisnd_spi_get_fw_version(void)
{
- if (strlen(g_version))
- return g_version;
+ return g_fw_version;
+}
- return "";
+static const char *pisnd_spi_get_hw_version(void)
+{
+ return g_hw_version;
}
static const struct of_device_id pisound_of_match[] = {
@@ -1054,13 +1073,22 @@ static ssize_t pisnd_id_show(
return sprintf(buf, "%s\n", pisnd_spi_get_id());
}
-static ssize_t pisnd_version_show(
+static ssize_t pisnd_fw_version_show(
struct kobject *kobj,
struct kobj_attribute *attr,
char *buf
)
{
- return sprintf(buf, "%s\n", pisnd_spi_get_version());
+ return sprintf(buf, "%s\n", pisnd_spi_get_fw_version());
+}
+
+static ssize_t pisnd_hw_version_show(
+ struct kobject *kobj,
+ struct kobj_attribute *attr,
+ char *buf
+)
+{
+ return sprintf(buf, "%s\n", pisnd_spi_get_hw_version());
}
static ssize_t pisnd_led_store(
@@ -1085,15 +1113,18 @@ static struct kobj_attribute pisnd_seria
__ATTR(serial, 0444, pisnd_serial_show, NULL);
static struct kobj_attribute pisnd_id_attribute =
__ATTR(id, 0444, pisnd_id_show, NULL);
-static struct kobj_attribute pisnd_version_attribute =
- __ATTR(version, 0444, pisnd_version_show, NULL);
+static struct kobj_attribute pisnd_fw_version_attribute =
+ __ATTR(version, 0444, pisnd_fw_version_show, NULL);
+static struct kobj_attribute pisnd_hw_version_attribute =
+__ATTR(hw_version, 0444, pisnd_hw_version_show, NULL);
static struct kobj_attribute pisnd_led_attribute =
__ATTR(led, 0644, NULL, pisnd_led_store);
static struct attribute *attrs[] = {
&pisnd_serial_attribute.attr,
&pisnd_id_attribute.attr,
- &pisnd_version_attribute.attr,
+ &pisnd_fw_version_attribute.attr,
+ &pisnd_hw_version_attribute.attr,
&pisnd_led_attribute.attr,
NULL
};
@@ -1112,9 +1143,10 @@ static int pisnd_probe(struct platform_d
}
printi("Detected Pisound card:\n");
- printi("\tSerial: %s\n", pisnd_spi_get_serial());
- printi("\tVersion: %s\n", pisnd_spi_get_version());
- printi("\tId: %s\n", pisnd_spi_get_id());
+ printi("\tSerial: %s\n", pisnd_spi_get_serial());
+ printi("\tFirmware Version: %s\n", pisnd_spi_get_fw_version());
+ printi("\tHardware Version: %s\n", pisnd_spi_get_hw_version());
+ printi("\tId: %s\n", pisnd_spi_get_id());
pisnd_kobj = kobject_create_and_add("pisound", kernel_kobj);
if (!pisnd_kobj) {