From ea08eeccae9297f7aabd2ef7f0c2517ac4549acc Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:18:26 +0000
Subject: [PATCH] write in 30M
---
kernel/drivers/spi/spi-rockchip-test.c | 75 ++++++++-----------------------------
1 files changed, 16 insertions(+), 59 deletions(-)
diff --git a/kernel/drivers/spi/spi-rockchip-test.c b/kernel/drivers/spi/spi-rockchip-test.c
index d97a5c4..f60c721 100644
--- a/kernel/drivers/spi/spi-rockchip-test.c
+++ b/kernel/drivers/spi/spi-rockchip-test.c
@@ -7,33 +7,6 @@
* GNU General Public License for more details.
*/
-/* dts config
-&spi0 {
- status = "okay";
- max-freq = <48000000>; //spi internal clk, don't modify
- //dma-names = "tx", "rx"; //enable dma
- pinctrl-names = "default"; //pinctrl according to you board
- pinctrl-0 = <&spi0_clk &spi0_tx &spi0_rx &spi0_cs0 &spi0_cs1>;
- spi_test@00 {
- compatible = "rockchip,spi_test_bus0_cs0";
- reg = <0>; //chip select 0:cs0 1:cs1
- id = <0>;
- spi-max-frequency = <24000000>; //spi output clock
- //spi-cpha; not support
- //spi-cpol; //if the property is here it is 1:clk is high, else 0:clk is low when idle
- };
-
- spi_test@01 {
- compatible = "rockchip,spi_test_bus0_cs1";
- reg = <1>;
- id = <1>;
- spi-max-frequency = <24000000>;
- spi-cpha;
- spi-cpol;
- };
-};
-*/
-
/* how to test spi
* echo write 0 10 255 > /dev/spi_misc_test
* echo write 0 10 255 init.rc > /dev/spi_misc_test
@@ -50,7 +23,6 @@
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/clk.h>
-#include <linux/fs.h>
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
#include <linux/platform_device.h>
@@ -65,7 +37,7 @@
#include <linux/uaccess.h>
#include <linux/syscalls.h>
-#define MAX_SPI_DEV_NUM 8
+#define MAX_SPI_DEV_NUM 10
#define SPI_MAX_SPEED_HZ 12000000
struct spi_test_data {
@@ -138,8 +110,8 @@
return ret;
}
-int spi_write_then_read_slt(int id, const void *txbuf, unsigned n_tx,
- void *rxbuf, unsigned n_rx)
+int spi_write_then_read_slt(int id, const void *txbuf, unsigned int n_tx,
+ void *rxbuf, unsigned int n_rx)
{
int ret = -1;
struct spi_device *spi = NULL;
@@ -233,17 +205,9 @@
}
spi->max_speed_hz = val;
} else if (!strcmp(cmd, "write")) {
- char name[64];
- int fd;
- mm_segment_t old_fs = get_fs();
-
sscanf(argv[0], "%d", &id);
sscanf(argv[1], "%d", ×);
sscanf(argv[2], "%d", &size);
- if (argc > 3) {
- sscanf(argv[3], "%s", name);
- set_fs(KERNEL_DS);
- }
txbuf = kzalloc(size, GFP_KERNEL);
if (!txbuf) {
@@ -251,19 +215,8 @@
return n;
}
- if (argc > 3) {
- fd = ksys_open(name, O_RDONLY, 0);
- if (fd < 0) {
- printk("open %s fail\n", name);
- } else {
- ksys_read(fd, (char __user *)txbuf, size);
- ksys_close(fd);
- }
- set_fs(old_fs);
- } else {
- for (i = 0; i < size; i++)
- txbuf[i] = i % 256;
- }
+ for (i = 0; i < size; i++)
+ txbuf[i] = i % 256;
start_time = ktime_get();
for (i = 0; i < times; i++)
@@ -348,14 +301,21 @@
kfree(txbuf);
kfree(rxbuf);
} else if (!strcmp(cmd, "config")) {
- int width;
+ int width, mode;
- sscanf(argv[0], "%d", &width);
+ sscanf(argv[0], "%d", &id);
+ sscanf(argv[1], "%d", &width);
+ sscanf(argv[2], "mode=0x%x", &mode);
if (width == 16)
bit_per_word = 16;
else
bit_per_word = 8;
+
+ if (mode) {
+ g_spi_test_data[id]->spi->mode = mode;
+ spi_setup(g_spi_test_data[id]->spi);
+ }
} else {
printk("echo id number size > /dev/spi_misc_test\n");
printk("echo write 0 10 255 > /dev/spi_misc_test\n");
@@ -363,7 +323,7 @@
printk("echo read 0 10 255 > /dev/spi_misc_test\n");
printk("echo loop 0 10 255 > /dev/spi_misc_test\n");
printk("echo setspeed 0 1000000 > /dev/spi_misc_test\n");
- printk("echo config 8 > /dev/spi_misc_test\n");
+ printk("echo config 0 8 mode=0xb > /dev/spi_misc_test\n");
}
return n;
@@ -388,9 +348,6 @@
if (!spi)
return -ENOMEM;
- if (!spi->dev.of_node)
- return -ENOMEM;
-
spi_test_data = (struct spi_test_data *)kzalloc(sizeof(struct spi_test_data), GFP_KERNEL);
if (!spi_test_data) {
dev_err(&spi->dev, "ERR: no memory for spi_test_data\n");
@@ -407,7 +364,7 @@
return -1;
}
- if (of_property_read_u32(spi->dev.of_node, "id", &id)) {
+ if (device_property_read_u32(&spi->dev, "id", &id)) {
dev_warn(&spi->dev, "fail to get id, default set 0\n");
id = 0;
}
--
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