diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0564-pisound-improvements-1778.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0564-pisound-improvements-1778.patch | 294 |
1 files changed, 0 insertions, 294 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0564-pisound-improvements-1778.patch b/target/linux/brcm2708/patches-4.4/0564-pisound-improvements-1778.patch deleted file mode 100644 index 31dd3d6f18..0000000000 --- a/target/linux/brcm2708/patches-4.4/0564-pisound-improvements-1778.patch +++ /dev/null @@ -1,294 +0,0 @@ -From afc3cd61521da7103489081731b1036d9d925197 Mon Sep 17 00:00:00 2001 -From: gtrainavicius <gtrainavicius@users.noreply.github.com> -Date: Thu, 5 Jan 2017 17:08:45 +0200 -Subject: [PATCH] pisound improvements: (#1778) - -* Added a writable sysfs object to enable scripts / user space software -to blink MIDI activity LEDs for variable duration. -* Improved hw_param constraints setting. -* Added compatibility with S16_LE sample format. -* Exposed some simple placeholder volume controls, so the card appears -in volumealsa widget. - -Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io> ---- - sound/soc/bcm/pisound.c | 175 ++++++++++++++++++++++++++++++++++++++++++------ - 1 file changed, 154 insertions(+), 21 deletions(-) - ---- a/sound/soc/bcm/pisound.c -+++ b/sound/soc/bcm/pisound.c -@@ -36,6 +36,7 @@ - #include <sound/jack.h> - #include <sound/rawmidi.h> - #include <sound/asequencer.h> -+#include <sound/control.h> - - static int pisnd_spi_init(struct device *dev); - static void pisnd_spi_uninit(void); -@@ -214,6 +215,9 @@ static char g_serial_num[11]; - static char g_id[25]; - static char g_version[5]; - -+static uint8_t g_ledFlashDuration; -+static bool g_ledFlashDurationChanged; -+ - DEFINE_KFIFO(spi_fifo_in, uint8_t, FIFO_SIZE); - DEFINE_KFIFO(spi_fifo_out, uint8_t, FIFO_SIZE); - -@@ -396,8 +400,13 @@ static void pisnd_work_handler(struct wo - val = 0; - tx = 0; - -- if (kfifo_get(&spi_fifo_out, &val)) -+ if (g_ledFlashDurationChanged) { -+ tx = 0xf000 | g_ledFlashDuration; -+ g_ledFlashDuration = 0; -+ g_ledFlashDurationChanged = false; -+ } else if (kfifo_get(&spi_fifo_out, &val)) { - tx = 0x0f00 | val; -+ } - - rx = spi_transfer16(tx); - -@@ -410,6 +419,7 @@ static void pisnd_work_handler(struct wo - } while (rx != 0 - || !kfifo_is_empty(&spi_fifo_out) - || pisnd_spi_has_more() -+ || g_ledFlashDurationChanged - ); - - if (!kfifo_is_empty(&spi_fifo_in) && g_recvCallback) -@@ -569,7 +579,7 @@ static int pisnd_spi_init(struct device - } - - /* Flash the LEDs. */ -- spi_transfer16(0xf000); -+ spi_transfer16(0xf008); - - ret = pisnd_spi_gpio_irq_init(dev); - if (ret < 0) { -@@ -610,6 +620,14 @@ static void pisnd_spi_uninit(void) - pisnd_spi_gpio_uninit(); - } - -+static void pisnd_spi_flash_leds(uint8_t duration) -+{ -+ g_ledFlashDuration = duration; -+ g_ledFlashDurationChanged = true; -+ printd("schedule from spi_flash_leds\n"); -+ pisnd_schedule_process(TASK_PROCESS); -+} -+ - static void pisnd_spi_send(uint8_t val) - { - kfifo_put(&spi_fifo_out, val); -@@ -658,6 +676,83 @@ static const struct of_device_id pisound - {}, - }; - -+enum { -+ SWITCH = 0, -+ VOLUME = 1, -+}; -+ -+static int pisnd_ctl_info(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_info *uinfo) -+{ -+ if (kcontrol->private_value == SWITCH) { -+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; -+ uinfo->count = 1; -+ uinfo->value.integer.min = 0; -+ uinfo->value.integer.max = 1; -+ return 0; -+ } else if (kcontrol->private_value == VOLUME) { -+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; -+ uinfo->count = 1; -+ uinfo->value.integer.min = 0; -+ uinfo->value.integer.max = 100; -+ return 0; -+ } -+ return -EINVAL; -+} -+ -+static int pisnd_ctl_get(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ if (kcontrol->private_value == SWITCH) { -+ ucontrol->value.integer.value[0] = 1; -+ return 0; -+ } else if (kcontrol->private_value == VOLUME) { -+ ucontrol->value.integer.value[0] = 100; -+ return 0; -+ } -+ -+ return -EINVAL; -+} -+ -+static struct snd_kcontrol_new pisnd_ctl[] = { -+ { -+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, -+ .name = "PCM Playback Switch", -+ .index = 0, -+ .private_value = SWITCH, -+ .access = SNDRV_CTL_ELEM_ACCESS_READ, -+ .info = pisnd_ctl_info, -+ .get = pisnd_ctl_get, -+ }, -+ { -+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, -+ .name = "PCM Playback Volume", -+ .index = 0, -+ .private_value = VOLUME, -+ .access = SNDRV_CTL_ELEM_ACCESS_READ, -+ .info = pisnd_ctl_info, -+ .get = pisnd_ctl_get, -+ }, -+}; -+ -+static int pisnd_ctl_init(struct snd_card *card) -+{ -+ int err, i; -+ -+ for (i = 0; i < ARRAY_SIZE(pisnd_ctl); ++i) { -+ err = snd_ctl_add(card, snd_ctl_new1(&pisnd_ctl[i], NULL)); -+ if (err < 0) -+ return err; -+ } -+ -+ return 0; -+} -+ -+static int pisnd_ctl_uninit(void) -+{ -+ return 0; -+} -+ - static struct gpio_desc *osr0, *osr1, *osr2; - static struct gpio_desc *reset; - static struct gpio_desc *button; -@@ -667,6 +762,14 @@ static int pisnd_hw_params( - struct snd_pcm_hw_params *params - ) - { -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai; -+ -+ /* pisound runs on fixed 32 clock counts per channel, -+ * as generated by the master ADC. -+ */ -+ snd_soc_dai_set_bclk_ratio(cpu_dai, 32*2); -+ - printd("rate = %d\n", params_rate(params)); - printd("ch = %d\n", params_channels(params)); - printd("bits = %u\n", -@@ -711,16 +814,6 @@ static struct snd_pcm_hw_constraint_list - .mask = 0, - }; - --static unsigned int sample_bits[] = { -- 24, 32 --}; -- --static struct snd_pcm_hw_constraint_list constraints_sample_bits = { -- .count = ARRAY_SIZE(sample_bits), -- .list = sample_bits, -- .mask = 0, --}; -- - static int pisnd_startup(struct snd_pcm_substream *substream) - { - int err = snd_pcm_hw_constraint_list( -@@ -733,11 +826,21 @@ static int pisnd_startup(struct snd_pcm_ - if (err < 0) - return err; - -- err = snd_pcm_hw_constraint_list( -+ err = snd_pcm_hw_constraint_single( - substream->runtime, -- 0, -- SNDRV_PCM_HW_PARAM_SAMPLE_BITS, -- &constraints_sample_bits -+ SNDRV_PCM_HW_PARAM_CHANNELS, -+ 2 -+ ); -+ -+ if (err < 0) -+ return err; -+ -+ err = snd_pcm_hw_constraint_mask64( -+ substream->runtime, -+ SNDRV_PCM_HW_PARAM_FORMAT, -+ SNDRV_PCM_FMTBIT_S16_LE | -+ SNDRV_PCM_FMTBIT_S24_LE | -+ SNDRV_PCM_FMTBIT_S32_LE - ); - - if (err < 0) -@@ -771,14 +874,23 @@ static int pisnd_card_probe(struct snd_s - { - int err = pisnd_midi_init(card->snd_card); - -- if (err < 0) -+ if (err < 0) { - printe("pisnd_midi_init failed: %d\n", err); -+ return err; -+ } - -- return err; -+ err = pisnd_ctl_init(card->snd_card); -+ if (err < 0) { -+ printe("pisnd_ctl_init failed: %d\n", err); -+ return err; -+ } -+ -+ return 0; - } - - static int pisnd_card_remove(struct snd_soc_card *card) - { -+ pisnd_ctl_uninit(); - pisnd_midi_uninit(); - return 0; - } -@@ -870,17 +982,38 @@ static ssize_t pisnd_version_show( - return sprintf(buf, "%s\n", pisnd_spi_get_version()); - } - -+static ssize_t pisnd_led_store( -+ struct kobject *kobj, -+ struct kobj_attribute *attr, -+ const char *buf, -+ size_t length -+ ) -+{ -+ uint32_t timeout; -+ int err; -+ -+ err = kstrtou32(buf, 10, &timeout); -+ -+ if (err == 0 && timeout <= 255) -+ pisnd_spi_flash_leds(timeout); -+ -+ return length; -+} -+ - static struct kobj_attribute pisnd_serial_attribute = -- __ATTR(serial, 0644, pisnd_serial_show, NULL); -+ __ATTR(serial, 0444, pisnd_serial_show, NULL); - static struct kobj_attribute pisnd_id_attribute = -- __ATTR(id, 0644, pisnd_id_show, NULL); -+ __ATTR(id, 0444, pisnd_id_show, NULL); - static struct kobj_attribute pisnd_version_attribute = -- __ATTR(version, 0644, pisnd_version_show, NULL); -+ __ATTR(version, 0444, pisnd_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_led_attribute.attr, - NULL - }; - |