From 071106ecf68c401173c58808b1cf5f68cc50d390 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 05 Jan 2024 08:39:27 +0000
Subject: [PATCH] change wifi driver to cypress
---
kernel/sound/soc/jz4740/jz4740-i2s.c | 154 +++++++++++++++++++++++++++++++--------------------
1 files changed, 94 insertions(+), 60 deletions(-)
diff --git a/kernel/sound/soc/jz4740/jz4740-i2s.c b/kernel/sound/soc/jz4740/jz4740-i2s.c
index 2c6b0ac..fb6476b 100644
--- a/kernel/sound/soc/jz4740/jz4740-i2s.c
+++ b/kernel/sound/soc/jz4740/jz4740-i2s.c
@@ -1,15 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
*/
#include <linux/init.h>
@@ -58,12 +49,8 @@
#define JZ_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET 12
#define JZ_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET 8
-#define JZ4780_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET 24
-#define JZ4780_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET 16
-#define JZ4780_AIC_CONF_FIFO_RX_THRESHOLD_MASK \
- (0xf << JZ4780_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET)
-#define JZ4780_AIC_CONF_FIFO_TX_THRESHOLD_MASK \
- (0x1f << JZ4780_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET)
+#define JZ4760_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET 24
+#define JZ4760_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET 16
#define JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_MASK (0x7 << 19)
#define JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_MASK (0x7 << 16)
@@ -72,7 +59,8 @@
#define JZ_AIC_CTRL_MONO_TO_STEREO BIT(11)
#define JZ_AIC_CTRL_SWITCH_ENDIANNESS BIT(10)
#define JZ_AIC_CTRL_SIGNED_TO_UNSIGNED BIT(9)
-#define JZ_AIC_CTRL_FLUSH BIT(8)
+#define JZ_AIC_CTRL_TFLUSH BIT(8)
+#define JZ_AIC_CTRL_RFLUSH BIT(7)
#define JZ_AIC_CTRL_ENABLE_ROR_INT BIT(6)
#define JZ_AIC_CTRL_ENABLE_TUR_INT BIT(5)
#define JZ_AIC_CTRL_ENABLE_RFS_INT BIT(4)
@@ -99,7 +87,16 @@
enum jz47xx_i2s_version {
JZ_I2S_JZ4740,
+ JZ_I2S_JZ4760,
+ JZ_I2S_JZ4770,
JZ_I2S_JZ4780,
+};
+
+struct i2s_soc_info {
+ enum jz47xx_i2s_version version;
+ struct snd_soc_dai_driver *dai;
+
+ bool shared_fifo_flush;
};
struct jz4740_i2s {
@@ -113,7 +110,7 @@
struct snd_dmaengine_dai_dma_data playback_dma_data;
struct snd_dmaengine_dai_dma_data capture_dma_data;
- enum jz47xx_i2s_version version;
+ const struct i2s_soc_info *soc_info;
};
static inline uint32_t jz4740_i2s_read(const struct jz4740_i2s *i2s,
@@ -128,19 +125,44 @@
writel(value, i2s->base + reg);
}
+static inline void jz4740_i2s_set_bits(const struct jz4740_i2s *i2s,
+ unsigned int reg, uint32_t bits)
+{
+ uint32_t value = jz4740_i2s_read(i2s, reg);
+ value |= bits;
+ jz4740_i2s_write(i2s, reg, value);
+}
+
static int jz4740_i2s_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
- uint32_t conf, ctrl;
+ uint32_t conf;
int ret;
- if (dai->active)
+ /*
+ * When we can flush FIFOs independently, only flush the FIFO
+ * that is starting up. We can do this when the DAI is active
+ * because it does not disturb other active substreams.
+ */
+ if (!i2s->soc_info->shared_fifo_flush) {
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ jz4740_i2s_set_bits(i2s, JZ_REG_AIC_CTRL, JZ_AIC_CTRL_TFLUSH);
+ else
+ jz4740_i2s_set_bits(i2s, JZ_REG_AIC_CTRL, JZ_AIC_CTRL_RFLUSH);
+ }
+
+ if (snd_soc_dai_active(dai))
return 0;
- ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL);
- ctrl |= JZ_AIC_CTRL_FLUSH;
- jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl);
+ /*
+ * When there is a shared flush bit for both FIFOs, the TFLUSH
+ * bit flushes both FIFOs. Flushing while the DAI is active would
+ * cause FIFO underruns in other active substreams so we have to
+ * guard this behind the snd_soc_dai_active() check.
+ */
+ if (i2s->soc_info->shared_fifo_flush)
+ jz4740_i2s_set_bits(i2s, JZ_REG_AIC_CTRL, JZ_AIC_CTRL_TFLUSH);
ret = clk_prepare_enable(i2s->clk_i2s);
if (ret)
@@ -159,7 +181,7 @@
struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
uint32_t conf;
- if (dai->active)
+ if (snd_soc_dai_active(dai))
return;
conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);
@@ -293,7 +315,7 @@
ctrl &= ~JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_MASK;
ctrl |= sample_size << JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_OFFSET;
- if (i2s->version >= JZ_I2S_JZ4780) {
+ if (i2s->soc_info->version >= JZ_I2S_JZ4770) {
div_reg &= ~I2SDIV_IDV_MASK;
div_reg |= (div - 1) << I2SDIV_IDV_SHIFT;
} else {
@@ -337,12 +359,12 @@
return ret;
}
-static int jz4740_i2s_suspend(struct snd_soc_dai *dai)
+static int jz4740_i2s_suspend(struct snd_soc_component *component)
{
- struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
+ struct jz4740_i2s *i2s = snd_soc_component_get_drvdata(component);
uint32_t conf;
- if (dai->active) {
+ if (snd_soc_component_active(component)) {
conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);
conf &= ~JZ_AIC_CONF_ENABLE;
jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);
@@ -355,9 +377,9 @@
return 0;
}
-static int jz4740_i2s_resume(struct snd_soc_dai *dai)
+static int jz4740_i2s_resume(struct snd_soc_component *component)
{
- struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
+ struct jz4740_i2s *i2s = snd_soc_component_get_drvdata(component);
uint32_t conf;
int ret;
@@ -365,7 +387,7 @@
if (ret)
return ret;
- if (dai->active) {
+ if (snd_soc_component_active(component)) {
ret = clk_prepare_enable(i2s->clk_i2s);
if (ret) {
clk_disable_unprepare(i2s->clk_aic);
@@ -411,9 +433,9 @@
snd_soc_dai_init_dma_data(dai, &i2s->playback_dma_data,
&i2s->capture_dma_data);
- if (i2s->version >= JZ_I2S_JZ4780) {
- conf = (7 << JZ4780_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET) |
- (8 << JZ4780_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET) |
+ if (i2s->soc_info->version >= JZ_I2S_JZ4760) {
+ conf = (7 << JZ4760_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET) |
+ (8 << JZ4760_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET) |
JZ_AIC_CONF_OVERFLOW_PLAY_LAST |
JZ_AIC_CONF_I2S |
JZ_AIC_CONF_INTERNAL_CODEC;
@@ -468,11 +490,20 @@
},
.symmetric_rates = 1,
.ops = &jz4740_i2s_dai_ops,
- .suspend = jz4740_i2s_suspend,
- .resume = jz4740_i2s_resume,
};
-static struct snd_soc_dai_driver jz4780_i2s_dai = {
+static const struct i2s_soc_info jz4740_i2s_soc_info = {
+ .version = JZ_I2S_JZ4740,
+ .dai = &jz4740_i2s_dai,
+ .shared_fifo_flush = true,
+};
+
+static const struct i2s_soc_info jz4760_i2s_soc_info = {
+ .version = JZ_I2S_JZ4760,
+ .dai = &jz4740_i2s_dai,
+};
+
+static struct snd_soc_dai_driver jz4770_i2s_dai = {
.probe = jz4740_i2s_dai_probe,
.remove = jz4740_i2s_dai_remove,
.playback = {
@@ -488,66 +519,69 @@
.formats = JZ4740_I2S_FMTS,
},
.ops = &jz4740_i2s_dai_ops,
- .suspend = jz4740_i2s_suspend,
- .resume = jz4740_i2s_resume,
+};
+
+static const struct i2s_soc_info jz4770_i2s_soc_info = {
+ .version = JZ_I2S_JZ4770,
+ .dai = &jz4770_i2s_dai,
+};
+
+static const struct i2s_soc_info jz4780_i2s_soc_info = {
+ .version = JZ_I2S_JZ4780,
+ .dai = &jz4770_i2s_dai,
};
static const struct snd_soc_component_driver jz4740_i2s_component = {
.name = "jz4740-i2s",
+ .suspend = jz4740_i2s_suspend,
+ .resume = jz4740_i2s_resume,
};
-#ifdef CONFIG_OF
static const struct of_device_id jz4740_of_matches[] = {
- { .compatible = "ingenic,jz4740-i2s", .data = (void *)JZ_I2S_JZ4740 },
- { .compatible = "ingenic,jz4780-i2s", .data = (void *)JZ_I2S_JZ4780 },
+ { .compatible = "ingenic,jz4740-i2s", .data = &jz4740_i2s_soc_info },
+ { .compatible = "ingenic,jz4760-i2s", .data = &jz4760_i2s_soc_info },
+ { .compatible = "ingenic,jz4770-i2s", .data = &jz4770_i2s_soc_info },
+ { .compatible = "ingenic,jz4780-i2s", .data = &jz4780_i2s_soc_info },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, jz4740_of_matches);
-#endif
static int jz4740_i2s_dev_probe(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
struct jz4740_i2s *i2s;
struct resource *mem;
int ret;
- const struct of_device_id *match;
- i2s = devm_kzalloc(&pdev->dev, sizeof(*i2s), GFP_KERNEL);
+ i2s = devm_kzalloc(dev, sizeof(*i2s), GFP_KERNEL);
if (!i2s)
return -ENOMEM;
- match = of_match_device(jz4740_of_matches, &pdev->dev);
- if (match)
- i2s->version = (enum jz47xx_i2s_version)match->data;
+ i2s->soc_info = device_get_match_data(dev);
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- i2s->base = devm_ioremap_resource(&pdev->dev, mem);
+ i2s->base = devm_ioremap_resource(dev, mem);
if (IS_ERR(i2s->base))
return PTR_ERR(i2s->base);
i2s->phys_base = mem->start;
- i2s->clk_aic = devm_clk_get(&pdev->dev, "aic");
+ i2s->clk_aic = devm_clk_get(dev, "aic");
if (IS_ERR(i2s->clk_aic))
return PTR_ERR(i2s->clk_aic);
- i2s->clk_i2s = devm_clk_get(&pdev->dev, "i2s");
+ i2s->clk_i2s = devm_clk_get(dev, "i2s");
if (IS_ERR(i2s->clk_i2s))
return PTR_ERR(i2s->clk_i2s);
platform_set_drvdata(pdev, i2s);
- if (i2s->version == JZ_I2S_JZ4780)
- ret = devm_snd_soc_register_component(&pdev->dev,
- &jz4740_i2s_component, &jz4780_i2s_dai, 1);
- else
- ret = devm_snd_soc_register_component(&pdev->dev,
- &jz4740_i2s_component, &jz4740_i2s_dai, 1);
-
+ ret = devm_snd_soc_register_component(dev, &jz4740_i2s_component,
+ i2s->soc_info->dai, 1);
if (ret)
return ret;
- return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL,
+ return devm_snd_dmaengine_pcm_register(dev, NULL,
SND_DMAENGINE_PCM_FLAG_COMPAT);
}
@@ -555,7 +589,7 @@
.probe = jz4740_i2s_dev_probe,
.driver = {
.name = "jz4740-i2s",
- .of_match_table = of_match_ptr(jz4740_of_matches)
+ .of_match_table = jz4740_of_matches,
},
};
--
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