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Diffstat (limited to 'arch/x86/platform/ts5500/ts5500.c')
-rw-r--r--arch/x86/platform/ts5500/ts5500.c94
1 files changed, 53 insertions, 41 deletions
diff --git a/arch/x86/platform/ts5500/ts5500.c b/arch/x86/platform/ts5500/ts5500.c
index 9471b9456f25..baf16e72e668 100644
--- a/arch/x86/platform/ts5500/ts5500.c
+++ b/arch/x86/platform/ts5500/ts5500.c
@@ -1,7 +1,7 @@
/*
* Technologic Systems TS-5500 Single Board Computer support
*
- * Copyright (C) 2013 Savoir-faire Linux Inc.
+ * Copyright (C) 2013-2014 Savoir-faire Linux Inc.
* Vivien Didelot <vivien.didelot@savoirfairelinux.com>
*
* This program is free software; you can redistribute it and/or modify it under
@@ -15,8 +15,8 @@
* state or available options. For further information about sysfs entries, see
* Documentation/ABI/testing/sysfs-platform-ts5500.
*
- * This code actually supports the TS-5500 platform, but it may be extended to
- * support similar Technologic Systems x86-based platforms, such as the TS-5600.
+ * This code may be extended to support similar x86-based platforms.
+ * Actually, the TS-5500 and TS-5400 are supported.
*/
#include <linux/delay.h>
@@ -32,6 +32,7 @@
/* Product code register */
#define TS5500_PRODUCT_CODE_ADDR 0x74
#define TS5500_PRODUCT_CODE 0x60 /* TS-5500 product code */
+#define TS5400_PRODUCT_CODE 0x40 /* TS-5400 product code */
/* SRAM/RS-485/ADC options, and RS-485 RTS/Automatic RS-485 flags register */
#define TS5500_SRAM_RS485_ADC_ADDR 0x75
@@ -66,6 +67,7 @@
/**
* struct ts5500_sbc - TS-5500 board description
+ * @name: Board model name.
* @id: Board product ID.
* @sram: Flag for SRAM option.
* @rs485: Flag for RS-485 option.
@@ -75,6 +77,7 @@
* @jumpers: Bitfield for jumpers' state.
*/
struct ts5500_sbc {
+ const char *name;
int id;
bool sram;
bool rs485;
@@ -122,13 +125,16 @@ static int __init ts5500_detect_config(struct ts5500_sbc *sbc)
if (!request_region(TS5500_PRODUCT_CODE_ADDR, 4, "ts5500"))
return -EBUSY;
- tmp = inb(TS5500_PRODUCT_CODE_ADDR);
- if (tmp != TS5500_PRODUCT_CODE) {
- pr_err("This platform is not a TS-5500 (found ID 0x%x)\n", tmp);
+ sbc->id = inb(TS5500_PRODUCT_CODE_ADDR);
+ if (sbc->id == TS5500_PRODUCT_CODE) {
+ sbc->name = "TS-5500";
+ } else if (sbc->id == TS5400_PRODUCT_CODE) {
+ sbc->name = "TS-5400";
+ } else {
+ pr_err("ts5500: unknown product code 0x%x\n", sbc->id);
ret = -ENODEV;
goto cleanup;
}
- sbc->id = tmp;
tmp = inb(TS5500_SRAM_RS485_ADC_ADDR);
sbc->sram = tmp & TS5500_SRAM;
@@ -147,48 +153,52 @@ cleanup:
return ret;
}
-static ssize_t ts5500_show_id(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t name_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct ts5500_sbc *sbc = dev_get_drvdata(dev);
- return sprintf(buf, "0x%.2x\n", sbc->id);
+ return sprintf(buf, "%s\n", sbc->name);
}
+static DEVICE_ATTR_RO(name);
-static ssize_t ts5500_show_jumpers(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t id_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct ts5500_sbc *sbc = dev_get_drvdata(dev);
- return sprintf(buf, "0x%.2x\n", sbc->jumpers >> 1);
+ return sprintf(buf, "0x%.2x\n", sbc->id);
}
+static DEVICE_ATTR_RO(id);
-#define TS5500_SHOW(field) \
- static ssize_t ts5500_show_##field(struct device *dev, \
- struct device_attribute *attr, \
- char *buf) \
- { \
- struct ts5500_sbc *sbc = dev_get_drvdata(dev); \
- return sprintf(buf, "%d\n", sbc->field); \
- }
-
-TS5500_SHOW(sram)
-TS5500_SHOW(rs485)
-TS5500_SHOW(adc)
-TS5500_SHOW(ereset)
-TS5500_SHOW(itr)
+static ssize_t jumpers_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct ts5500_sbc *sbc = dev_get_drvdata(dev);
-static DEVICE_ATTR(id, S_IRUGO, ts5500_show_id, NULL);
-static DEVICE_ATTR(jumpers, S_IRUGO, ts5500_show_jumpers, NULL);
-static DEVICE_ATTR(sram, S_IRUGO, ts5500_show_sram, NULL);
-static DEVICE_ATTR(rs485, S_IRUGO, ts5500_show_rs485, NULL);
-static DEVICE_ATTR(adc, S_IRUGO, ts5500_show_adc, NULL);
-static DEVICE_ATTR(ereset, S_IRUGO, ts5500_show_ereset, NULL);
-static DEVICE_ATTR(itr, S_IRUGO, ts5500_show_itr, NULL);
+ return sprintf(buf, "0x%.2x\n", sbc->jumpers >> 1);
+}
+static DEVICE_ATTR_RO(jumpers);
+
+#define TS5500_ATTR_BOOL(_field) \
+ static ssize_t _field##_show(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+ { \
+ struct ts5500_sbc *sbc = dev_get_drvdata(dev); \
+ \
+ return sprintf(buf, "%d\n", sbc->_field); \
+ } \
+ static DEVICE_ATTR_RO(_field)
+
+TS5500_ATTR_BOOL(sram);
+TS5500_ATTR_BOOL(rs485);
+TS5500_ATTR_BOOL(adc);
+TS5500_ATTR_BOOL(ereset);
+TS5500_ATTR_BOOL(itr);
static struct attribute *ts5500_attributes[] = {
&dev_attr_id.attr,
+ &dev_attr_name.attr,
&dev_attr_jumpers.attr,
&dev_attr_sram.attr,
&dev_attr_rs485.attr,
@@ -311,12 +321,14 @@ static int __init ts5500_init(void)
if (err)
goto error;
- ts5500_dio1_pdev.dev.parent = &pdev->dev;
- if (platform_device_register(&ts5500_dio1_pdev))
- dev_warn(&pdev->dev, "DIO1 block registration failed\n");
- ts5500_dio2_pdev.dev.parent = &pdev->dev;
- if (platform_device_register(&ts5500_dio2_pdev))
- dev_warn(&pdev->dev, "DIO2 block registration failed\n");
+ if (sbc->id == TS5500_PRODUCT_CODE) {
+ ts5500_dio1_pdev.dev.parent = &pdev->dev;
+ if (platform_device_register(&ts5500_dio1_pdev))
+ dev_warn(&pdev->dev, "DIO1 block registration failed\n");
+ ts5500_dio2_pdev.dev.parent = &pdev->dev;
+ if (platform_device_register(&ts5500_dio2_pdev))
+ dev_warn(&pdev->dev, "DIO2 block registration failed\n");
+ }
if (led_classdev_register(&pdev->dev, &ts5500_led_cdev))
dev_warn(&pdev->dev, "LED registration failed\n");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 06:26:10 +0000