diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0402-pisound-Added-reading-Pisound-board-hardware-revisio.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0402-pisound-Added-reading-Pisound-board-hardware-revisio.patch | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0402-pisound-Added-reading-Pisound-board-hardware-revisio.patch b/target/linux/bcm27xx/patches-5.4/950-0402-pisound-Added-reading-Pisound-board-hardware-revisio.patch new file mode 100644 index 0000000000..df6f526e2e --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0402-pisound-Added-reading-Pisound-board-hardware-revisio.patch @@ -0,0 +1,201 @@ +From 21dace2c687d45819cb0dfc4f32f005da82d9197 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[] = { +@@ -1056,13 +1075,22 @@ 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( +@@ -1087,15 +1115,18 @@ 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 + }; +@@ -1114,9 +1145,10 @@ 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) { |