@@ -585,6 +585,14 @@ config AB5500_CORE
chip. This connects to the db5500 chip via the I2C bus via PRCMU.
This chip embeds various other multimedia funtionalities as well.
+config AB5500_DEBUG
+ bool "Enable debug info via debugfs"
+ depends on AB5500_CORE && DEBUG_FS
+ default y if DEBUG_FS
+ help
+ Select this option if you want debug information from the AB5500
+ using the debug filesystem, debugfs.
+
config AB8500_CORE
bool "ST-Ericsson AB8500 Mixed Signal Power Management chip"
depends on GENERIC_HARDIRQS && ABX500_CORE
@@ -81,6 +81,7 @@ obj-$(CONFIG_AB3100_CORE) += ab3100-core.o
obj-$(CONFIG_AB3100_OTP) += ab3100-otp.o
obj-$(CONFIG_AB3550_CORE) += ab3550-core.o
obj-$(CONFIG_AB5500_CORE) += ab5500-core.o
+obj-$(CONFIG_AB5500_DEBUG) += ab5500-debugfs.o
obj-$(CONFIG_AB8500_CORE) += ab8500-core.o ab8500-sysctrl.o
obj-$(CONFIG_AB8500_DEBUG) += ab8500-debugfs.o
obj-$(CONFIG_AB8500_GPADC) += ab8500-gpadc.o
@@ -21,9 +21,6 @@
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/random.h>
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-#include <linux/uaccess.h>
#include <linux/mfd/ab5500/ab5500.h>
#include <linux/mfd/abx500.h>
#include <linux/list.h>
@@ -33,87 +30,13 @@
#include <linux/version.h>
#include <linux/mfd/db5500-prcmu.h>
+#include "ab5500-core.h"
+#include "ab5500-debugfs.h"
+
#define AB5500_NUM_EVENT_REG 23
#define AB5500_IT_LATCH0_REG 0x40
#define AB5500_IT_MASK0_REG 0x60
-/* Read/write operation values. */
-#define AB5500_PERM_RD (0x01)
-#define AB5500_PERM_WR (0x02)
-
-/* Read/write permissions. */
-#define AB5500_PERM_RO (AB5500_PERM_RD)
-#define AB5500_PERM_RW (AB5500_PERM_RD | AB5500_PERM_WR)
-
-#define AB5500_MASK_BASE (0x60)
-#define AB5500_MASK_END (0x79)
-#define AB5500_CHIP_ID (0x20)
-
-/**
- * struct ab5500_bank
- * @slave_addr: I2C slave_addr found in AB5500 specification
- * @name: Documentation name of the bank. For reference
- */
-struct ab5500_bank {
- u8 slave_addr;
- const char *name;
-};
-
-static const struct ab5500_bank bankinfo[AB5500_NUM_BANKS] = {
- [AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP] = {
- AB5500_ADDR_VIT_IO_I2C_CLK_TST_OTP, "VIT_IO_I2C_CLK_TST_OTP"},
- [AB5500_BANK_VDDDIG_IO_I2C_CLK_TST] = {
- AB5500_ADDR_VDDDIG_IO_I2C_CLK_TST, "VDDDIG_IO_I2C_CLK_TST"},
- [AB5500_BANK_VDENC] = {AB5500_ADDR_VDENC, "VDENC"},
- [AB5500_BANK_SIM_USBSIM] = {AB5500_ADDR_SIM_USBSIM, "SIM_USBSIM"},
- [AB5500_BANK_LED] = {AB5500_ADDR_LED, "LED"},
- [AB5500_BANK_ADC] = {AB5500_ADDR_ADC, "ADC"},
- [AB5500_BANK_RTC] = {AB5500_ADDR_RTC, "RTC"},
- [AB5500_BANK_STARTUP] = {AB5500_ADDR_STARTUP, "STARTUP"},
- [AB5500_BANK_DBI_ECI] = {AB5500_ADDR_DBI_ECI, "DBI-ECI"},
- [AB5500_BANK_CHG] = {AB5500_ADDR_CHG, "CHG"},
- [AB5500_BANK_FG_BATTCOM_ACC] = {
- AB5500_ADDR_FG_BATTCOM_ACC, "FG_BATCOM_ACC"},
- [AB5500_BANK_USB] = {AB5500_ADDR_USB, "USB"},
- [AB5500_BANK_IT] = {AB5500_ADDR_IT, "IT"},
- [AB5500_BANK_VIBRA] = {AB5500_ADDR_VIBRA, "VIBRA"},
- [AB5500_BANK_AUDIO_HEADSETUSB] = {
- AB5500_ADDR_AUDIO_HEADSETUSB, "AUDIO_HEADSETUSB"},
-};
-
-/**
- * struct ab5500_reg_range
- * @first: the first address of the range
- * @last: the last address of the range
- * @perm: access permissions for the range
- */
-struct ab5500_reg_range {
- u8 first;
- u8 last;
- u8 perm;
-};
-
-/**
- * struct ab5500_i2c_ranges
- * @count: the number of ranges in the list
- * @range: the list of register ranges
- */
-struct ab5500_i2c_ranges {
- u8 nranges;
- u8 bankid;
- const struct ab5500_reg_range *range;
-};
-
-/**
- * struct ab5500_i2c_banks
- * @count: the number of ranges in the list
- * @range: the list of register ranges
- */
-struct ab5500_i2c_banks {
- u8 nbanks;
- const struct ab5500_i2c_ranges *bank;
-};
-
/*
* Permissible register ranges for reading and writing per device and bank.
*
@@ -1073,8 +996,9 @@ static struct mfd_cell ab5500_devs[AB5500_NUM_DEVICES] = {
/*
* Functionality for getting/setting register values.
*/
-static int get_register_interruptible(struct ab5500 *ab, u8 bank, u8 reg,
- u8 *value)
+int ab5500_get_register_interruptible_raw(struct ab5500 *ab,
+ u8 bank, u8 reg,
+ u8 *value)
{
int err;
@@ -1121,7 +1045,7 @@ out:
return err;
}
-static int mask_and_set_register_interruptible(struct ab5500 *ab, u8 bank,
+int ab5500_mask_and_set_register_interruptible_raw(struct ab5500 *ab, u8 bank,
u8 reg, u8 bitmask, u8 bitvalues)
{
int err = 0;
@@ -1158,7 +1082,8 @@ static int mask_and_set_register_interruptible(struct ab5500 *ab, u8 bank,
static int
set_register_interruptible(struct ab5500 *ab, u8 bank, u8 reg, u8 value)
{
- return mask_and_set_register_interruptible(ab, bank, reg, 0xff, value);
+ return ab5500_mask_and_set_register_interruptible_raw(ab, bank, reg,
+ 0xff, value);
}
/*
@@ -1261,7 +1186,7 @@ static int ab5500_mask_and_set_register_interruptible(struct device *dev,
return -EINVAL;
ab = dev_get_drvdata(dev->parent);
- return mask_and_set_register_interruptible(ab, bank, reg,
+ return ab5500_mask_and_set_register_interruptible_raw(ab, bank, reg,
bitmask, bitvalues);
}
@@ -1283,7 +1208,7 @@ static int ab5500_get_register_interruptible(struct device *dev, u8 bank,
return -EINVAL;
ab = dev_get_drvdata(dev->parent);
- return get_register_interruptible(ab, bank, reg, value);
+ return ab5500_get_register_interruptible_raw(ab, bank, reg, value);
}
static int ab5500_get_register_page_interruptible(struct device *dev, u8 bank,
@@ -1327,806 +1252,6 @@ static struct abx500_ops ab5500_ops = {
.startup_irq_enabled = NULL,
};
-#ifdef CONFIG_DEBUG_FS
-static struct ab5500_i2c_ranges ab5500_reg_ranges[AB5500_NUM_BANKS] = {
- [AB5500_BANK_LED] = {
- .bankid = AB5500_BANK_LED,
- .nranges = 1,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x0C,
- .perm = AB5500_PERM_RW,
- },
- },
- },
- [AB5500_BANK_ADC] = {
- .bankid = AB5500_BANK_ADC,
- .nranges = 6,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x1F,
- .last = 0x22,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0x23,
- .last = 0x24,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x26,
- .last = 0x2D,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0x2F,
- .last = 0x34,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x37,
- .last = 0x57,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x58,
- .last = 0x58,
- .perm = AB5500_PERM_RO,
- },
- },
- },
- [AB5500_BANK_RTC] = {
- .bankid = AB5500_BANK_RTC,
- .nranges = 2,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x04,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x06,
- .last = 0x0C,
- .perm = AB5500_PERM_RW,
- },
- },
- },
- [AB5500_BANK_STARTUP] = {
- .bankid = AB5500_BANK_STARTUP,
- .nranges = 12,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x01,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x1F,
- .last = 0x1F,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x2E,
- .last = 0x2E,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0x2F,
- .last = 0x30,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x50,
- .last = 0x51,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x60,
- .last = 0x61,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x66,
- .last = 0x8A,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x8C,
- .last = 0x96,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0xAA,
- .last = 0xB4,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0xB7,
- .last = 0xBF,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0xC1,
- .last = 0xCA,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0xD3,
- .last = 0xE0,
- .perm = AB5500_PERM_RW,
- },
- },
- },
- [AB5500_BANK_DBI_ECI] = {
- .bankid = AB5500_BANK_DBI_ECI,
- .nranges = 3,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x07,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x10,
- .last = 0x10,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x13,
- .last = 0x13,
- .perm = AB5500_PERM_RW,
- },
- },
- },
- [AB5500_BANK_CHG] = {
- .bankid = AB5500_BANK_CHG,
- .nranges = 2,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x11,
- .last = 0x11,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0x12,
- .last = 0x1B,
- .perm = AB5500_PERM_RW,
- },
- },
- },
- [AB5500_BANK_FG_BATTCOM_ACC] = {
- .bankid = AB5500_BANK_FG_BATTCOM_ACC,
- .nranges = 2,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x0B,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0x0C,
- .last = 0x10,
- .perm = AB5500_PERM_RW,
- },
- },
- },
- [AB5500_BANK_USB] = {
- .bankid = AB5500_BANK_USB,
- .nranges = 12,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x01,
- .last = 0x01,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x80,
- .last = 0x83,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x87,
- .last = 0x8A,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x8B,
- .last = 0x8B,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0x91,
- .last = 0x92,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0x93,
- .last = 0x93,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x94,
- .last = 0x94,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0xA8,
- .last = 0xB0,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0xB2,
- .last = 0xB2,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0xB4,
- .last = 0xBC,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0xBF,
- .last = 0xBF,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0xC1,
- .last = 0xC5,
- .perm = AB5500_PERM_RO,
- },
- },
- },
- [AB5500_BANK_IT] = {
- .bankid = AB5500_BANK_IT,
- .nranges = 4,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x02,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0x20,
- .last = 0x36,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0x40,
- .last = 0x56,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0x60,
- .last = 0x76,
- .perm = AB5500_PERM_RO,
- },
- },
- },
- [AB5500_BANK_VDDDIG_IO_I2C_CLK_TST] = {
- .bankid = AB5500_BANK_VDDDIG_IO_I2C_CLK_TST,
- .nranges = 7,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x02,
- .last = 0x02,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x12,
- .last = 0x12,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x30,
- .last = 0x34,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x40,
- .last = 0x44,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x50,
- .last = 0x54,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x60,
- .last = 0x64,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x70,
- .last = 0x74,
- .perm = AB5500_PERM_RW,
- },
- },
- },
- [AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP] = {
- .bankid = AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP,
- .nranges = 13,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x01,
- .last = 0x01,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x02,
- .last = 0x02,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0x0D,
- .last = 0x0F,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x1C,
- .last = 0x1C,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x1E,
- .last = 0x1E,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x20,
- .last = 0x21,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x25,
- .last = 0x25,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x28,
- .last = 0x2A,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x30,
- .last = 0x33,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x40,
- .last = 0x43,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x50,
- .last = 0x53,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x60,
- .last = 0x63,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x70,
- .last = 0x73,
- .perm = AB5500_PERM_RW,
- },
- },
- },
- [AB5500_BANK_VIBRA] = {
- .bankid = AB5500_BANK_VIBRA,
- .nranges = 2,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x10,
- .last = 0x13,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0xFE,
- .last = 0xFE,
- .perm = AB5500_PERM_RW,
- },
- },
- },
- [AB5500_BANK_AUDIO_HEADSETUSB] = {
- .bankid = AB5500_BANK_AUDIO_HEADSETUSB,
- .nranges = 2,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x48,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0xEB,
- .last = 0xFB,
- .perm = AB5500_PERM_RW,
- },
- },
- },
- [AB5500_BANK_SIM_USBSIM] = {
- .bankid = AB5500_BANK_SIM_USBSIM,
- .nranges = 1,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x13,
- .last = 0x19,
- .perm = AB5500_PERM_RW,
- },
- },
- },
- [AB5500_BANK_VDENC] = {
- .bankid = AB5500_BANK_VDENC,
- .nranges = 12,
- .range = (struct ab5500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x08,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x09,
- .last = 0x09,
- .perm = AB5500_PERM_RO,
- },
- {
- .first = 0x0A,
- .last = 0x12,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x15,
- .last = 0x19,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x1B,
- .last = 0x21,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x27,
- .last = 0x2C,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x41,
- .last = 0x41,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x45,
- .last = 0x5B,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x5D,
- .last = 0x5D,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x69,
- .last = 0x69,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x6C,
- .last = 0x6D,
- .perm = AB5500_PERM_RW,
- },
- {
- .first = 0x80,
- .last = 0x81,
- .perm = AB5500_PERM_RW,
- },
- },
- },
-};
-static int ab5500_registers_print(struct seq_file *s, void *p)
-{
- struct ab5500 *ab = s->private;
- unsigned int i;
- u8 bank = (u8)ab->debug_bank;
-
- seq_printf(s, "ab5500 register values:\n");
- for (bank = 0; bank < AB5500_NUM_BANKS; bank++) {
- seq_printf(s, " bank %u, %s (0x%x):\n", bank,
- bankinfo[bank].name,
- bankinfo[bank].slave_addr);
- for (i = 0; i < ab5500_reg_ranges[bank].nranges; i++) {
- u8 reg;
- int err;
-
- for (reg = ab5500_reg_ranges[bank].range[i].first;
- reg <= ab5500_reg_ranges[bank].range[i].last;
- reg++) {
- u8 value;
-
- err = get_register_interruptible(ab, bank, reg,
- &value);
- if (err < 0) {
- dev_err(ab->dev, "get_reg failed %d"
- "bank 0x%x reg 0x%x\n",
- err, bank, reg);
- return err;
- }
-
- err = seq_printf(s, "[%d/0x%02X]: 0x%02X\n",
- bank, reg, value);
- if (err < 0) {
- dev_err(ab->dev,
- "seq_printf overflow\n");
- /*
- * Error is not returned here since
- * the output is wanted in any case
- */
- return 0;
- }
- }
- }
- }
- return 0;
-}
-
-static int ab5500_registers_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ab5500_registers_print, inode->i_private);
-}
-
-static const struct file_operations ab5500_registers_fops = {
- .open = ab5500_registers_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static int ab5500_bank_print(struct seq_file *s, void *p)
-{
- struct ab5500 *ab = s->private;
-
- seq_printf(s, "%d\n", ab->debug_bank);
- return 0;
-}
-
-static int ab5500_bank_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ab5500_bank_print, inode->i_private);
-}
-
-static ssize_t ab5500_bank_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private;
- char buf[32];
- int buf_size;
- unsigned long user_bank;
- int err;
-
- /* Get userspace string and assure termination */
- buf_size = min(count, (sizeof(buf) - 1));
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
- buf[buf_size] = 0;
-
- err = strict_strtoul(buf, 0, &user_bank);
- if (err)
- return -EINVAL;
-
- if (user_bank >= AB5500_NUM_BANKS) {
- dev_err(ab->dev,
- "debugfs error input > number of banks\n");
- return -EINVAL;
- }
-
- ab->debug_bank = user_bank;
-
- return buf_size;
-}
-
-static int ab5500_address_print(struct seq_file *s, void *p)
-{
- struct ab5500 *ab = s->private;
-
- seq_printf(s, "0x%02X\n", ab->debug_address);
- return 0;
-}
-
-static int ab5500_address_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ab5500_address_print, inode->i_private);
-}
-
-static ssize_t ab5500_address_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private;
- char buf[32];
- int buf_size;
- unsigned long user_address;
- int err;
-
- /* Get userspace string and assure termination */
- buf_size = min(count, (sizeof(buf) - 1));
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
- buf[buf_size] = 0;
-
- err = strict_strtoul(buf, 0, &user_address);
- if (err)
- return -EINVAL;
- if (user_address > 0xff) {
- dev_err(ab->dev,
- "debugfs error input > 0xff\n");
- return -EINVAL;
- }
- ab->debug_address = user_address;
- return buf_size;
-}
-
-static int ab5500_val_print(struct seq_file *s, void *p)
-{
- struct ab5500 *ab = s->private;
- int err;
- u8 regvalue;
-
- err = get_register_interruptible(ab, (u8)ab->debug_bank,
- (u8)ab->debug_address, ®value);
- if (err) {
- dev_err(ab->dev, "get_reg failed %d, bank 0x%x"
- ", reg 0x%x\n", err, ab->debug_bank,
- ab->debug_address);
- return -EINVAL;
- }
- seq_printf(s, "0x%02X\n", regvalue);
-
- return 0;
-}
-
-static int ab5500_val_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ab5500_val_print, inode->i_private);
-}
-
-static ssize_t ab5500_val_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private;
- char buf[32];
- int buf_size;
- unsigned long user_val;
- int err;
- u8 regvalue;
-
- /* Get userspace string and assure termination */
- buf_size = min(count, (sizeof(buf)-1));
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
- buf[buf_size] = 0;
-
- err = strict_strtoul(buf, 0, &user_val);
- if (err)
- return -EINVAL;
- if (user_val > 0xff) {
- dev_err(ab->dev,
- "debugfs error input > 0xff\n");
- return -EINVAL;
- }
- err = mask_and_set_register_interruptible(
- ab, (u8)ab->debug_bank,
- (u8)ab->debug_address, 0xFF, (u8)user_val);
- if (err)
- return -EINVAL;
-
- get_register_interruptible(ab, (u8)ab->debug_bank,
- (u8)ab->debug_address, ®value);
- if (err)
- return -EINVAL;
-
- return buf_size;
-}
-
-static const struct file_operations ab5500_bank_fops = {
- .open = ab5500_bank_open,
- .write = ab5500_bank_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static const struct file_operations ab5500_address_fops = {
- .open = ab5500_address_open,
- .write = ab5500_address_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static const struct file_operations ab5500_val_fops = {
- .open = ab5500_val_open,
- .write = ab5500_val_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static struct dentry *ab5500_dir;
-static struct dentry *ab5500_reg_file;
-static struct dentry *ab5500_bank_file;
-static struct dentry *ab5500_address_file;
-static struct dentry *ab5500_val_file;
-
-static inline void ab5500_setup_debugfs(struct ab5500 *ab)
-{
- ab->debug_bank = AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP;
- ab->debug_address = AB5500_CHIP_ID;
-
- ab5500_dir = debugfs_create_dir("ab5500", NULL);
- if (!ab5500_dir)
- goto exit_no_debugfs;
-
- ab5500_reg_file = debugfs_create_file("all-bank-registers",
- S_IRUGO, ab5500_dir, ab, &ab5500_registers_fops);
- if (!ab5500_reg_file)
- goto exit_destroy_dir;
-
- ab5500_bank_file = debugfs_create_file("register-bank",
- (S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_bank_fops);
- if (!ab5500_bank_file)
- goto exit_destroy_reg;
-
- ab5500_address_file = debugfs_create_file("register-address",
- (S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_address_fops);
- if (!ab5500_address_file)
- goto exit_destroy_bank;
-
- ab5500_val_file = debugfs_create_file("register-value",
- (S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_val_fops);
- if (!ab5500_val_file)
- goto exit_destroy_address;
-
- return;
-
-exit_destroy_address:
- debugfs_remove(ab5500_address_file);
-exit_destroy_bank:
- debugfs_remove(ab5500_bank_file);
-exit_destroy_reg:
- debugfs_remove(ab5500_reg_file);
-exit_destroy_dir:
- debugfs_remove(ab5500_dir);
-exit_no_debugfs:
- dev_err(ab->dev, "failed to create debugfs entries.\n");
- return;
-}
-
-static inline void ab5500_remove_debugfs(void)
-{
- debugfs_remove(ab5500_val_file);
- debugfs_remove(ab5500_address_file);
- debugfs_remove(ab5500_bank_file);
- debugfs_remove(ab5500_reg_file);
- debugfs_remove(ab5500_dir);
-}
-
-#else /* !CONFIG_DEBUG_FS */
-static inline void ab5500_setup_debugfs(struct ab5500 *ab)
-{
-}
-static inline void ab5500_remove_debugfs(void)
-{
-}
-#endif
-
/*
* ab5500_setup : Basic set-up, datastructure creation/destruction
* and I2C interface.This sets up a default config
@@ -2142,7 +1267,7 @@ static int __init ab5500_setup(struct ab5500 *ab,
int i;
for (i = 0; i < size; i++) {
- err = mask_and_set_register_interruptible(ab,
+ err = ab5500_mask_and_set_register_interruptible_raw(ab,
settings[i].bank,
settings[i].reg,
0xFF, settings[i].setting);
@@ -2205,8 +1330,9 @@ static int __init ab5500_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, ab);
/* Read chip ID register */
- err = get_register_interruptible(ab, AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP,
- AB5500_CHIP_ID, &ab->chip_id);
+ err = ab5500_get_register_interruptible_raw(ab,
+ AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP,
+ AB5500_CHIP_ID, &ab->chip_id);
if (err) {
dev_err(&pdev->dev, "could not communicate with the analog "
"baseband chip\n");
@@ -2233,7 +1359,8 @@ static int __init ab5500_probe(struct platform_device *pdev)
u8 maskreg = AB5500_IT_MASK0_REG + i;
u8 val;
- get_register_interruptible(ab, AB5500_BANK_IT, latchreg, &val);
+ ab5500_get_register_interruptible_raw(ab, AB5500_BANK_IT,
+ latchreg, &val);
set_register_interruptible(ab, AB5500_BANK_IT, maskreg, 0xff);
ab->mask[i] = ab->oldmask[i] = 0xff;
}
new file mode 100644
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2011 ST-Ericsson
+ * License terms: GNU General Public License (GPL) version 2
+ * Shared definitions and data structures for the AB5500 MFD driver
+ */
+
+/* Read/write operation values. */
+#define AB5500_PERM_RD (0x01)
+#define AB5500_PERM_WR (0x02)
+
+/* Read/write permissions. */
+#define AB5500_PERM_RO (AB5500_PERM_RD)
+#define AB5500_PERM_RW (AB5500_PERM_RD | AB5500_PERM_WR)
+
+#define AB5500_MASK_BASE (0x60)
+#define AB5500_MASK_END (0x79)
+#define AB5500_CHIP_ID (0x20)
+
+/**
+ * struct ab5500_reg_range
+ * @first: the first address of the range
+ * @last: the last address of the range
+ * @perm: access permissions for the range
+ */
+struct ab5500_reg_range {
+ u8 first;
+ u8 last;
+ u8 perm;
+};
+
+/**
+ * struct ab5500_i2c_ranges
+ * @count: the number of ranges in the list
+ * @range: the list of register ranges
+ */
+struct ab5500_i2c_ranges {
+ u8 nranges;
+ u8 bankid;
+ const struct ab5500_reg_range *range;
+};
+
+/**
+ * struct ab5500_i2c_banks
+ * @count: the number of ranges in the list
+ * @range: the list of register ranges
+ */
+struct ab5500_i2c_banks {
+ u8 nbanks;
+ const struct ab5500_i2c_ranges *bank;
+};
+
+/**
+ * struct ab5500_bank
+ * @slave_addr: I2C slave_addr found in AB5500 specification
+ * @name: Documentation name of the bank. For reference
+ */
+struct ab5500_bank {
+ u8 slave_addr;
+ const char *name;
+};
+
+static const struct ab5500_bank bankinfo[AB5500_NUM_BANKS] = {
+ [AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP] = {
+ AB5500_ADDR_VIT_IO_I2C_CLK_TST_OTP, "VIT_IO_I2C_CLK_TST_OTP"},
+ [AB5500_BANK_VDDDIG_IO_I2C_CLK_TST] = {
+ AB5500_ADDR_VDDDIG_IO_I2C_CLK_TST, "VDDDIG_IO_I2C_CLK_TST"},
+ [AB5500_BANK_VDENC] = {AB5500_ADDR_VDENC, "VDENC"},
+ [AB5500_BANK_SIM_USBSIM] = {AB5500_ADDR_SIM_USBSIM, "SIM_USBSIM"},
+ [AB5500_BANK_LED] = {AB5500_ADDR_LED, "LED"},
+ [AB5500_BANK_ADC] = {AB5500_ADDR_ADC, "ADC"},
+ [AB5500_BANK_RTC] = {AB5500_ADDR_RTC, "RTC"},
+ [AB5500_BANK_STARTUP] = {AB5500_ADDR_STARTUP, "STARTUP"},
+ [AB5500_BANK_DBI_ECI] = {AB5500_ADDR_DBI_ECI, "DBI-ECI"},
+ [AB5500_BANK_CHG] = {AB5500_ADDR_CHG, "CHG"},
+ [AB5500_BANK_FG_BATTCOM_ACC] = {
+ AB5500_ADDR_FG_BATTCOM_ACC, "FG_BATCOM_ACC"},
+ [AB5500_BANK_USB] = {AB5500_ADDR_USB, "USB"},
+ [AB5500_BANK_IT] = {AB5500_ADDR_IT, "IT"},
+ [AB5500_BANK_VIBRA] = {AB5500_ADDR_VIBRA, "VIBRA"},
+ [AB5500_BANK_AUDIO_HEADSETUSB] = {
+ AB5500_ADDR_AUDIO_HEADSETUSB, "AUDIO_HEADSETUSB"},
+};
+
+int ab5500_get_register_interruptible_raw(struct ab5500 *ab, u8 bank, u8 reg,
+ u8 *value);
+int ab5500_mask_and_set_register_interruptible_raw(struct ab5500 *ab, u8 bank,
+ u8 reg, u8 bitmask, u8 bitvalues);
new file mode 100644
@@ -0,0 +1,806 @@
+/*
+ * Copyright (C) 2011 ST-Ericsson
+ * License terms: GNU General Public License (GPL) version 2
+ * Debugfs support for the AB5500 MFD driver
+ */
+
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/mfd/ab5500/ab5500.h>
+#include <linux/mfd/abx500.h>
+#include <linux/uaccess.h>
+
+#include "ab5500-core.h"
+#include "ab5500-debugfs.h"
+
+static struct ab5500_i2c_ranges ab5500_reg_ranges[AB5500_NUM_BANKS] = {
+ [AB5500_BANK_LED] = {
+ .bankid = AB5500_BANK_LED,
+ .nranges = 1,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x00,
+ .last = 0x0C,
+ .perm = AB5500_PERM_RW,
+ },
+ },
+ },
+ [AB5500_BANK_ADC] = {
+ .bankid = AB5500_BANK_ADC,
+ .nranges = 6,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x1F,
+ .last = 0x22,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0x23,
+ .last = 0x24,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x26,
+ .last = 0x2D,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0x2F,
+ .last = 0x34,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x37,
+ .last = 0x57,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x58,
+ .last = 0x58,
+ .perm = AB5500_PERM_RO,
+ },
+ },
+ },
+ [AB5500_BANK_RTC] = {
+ .bankid = AB5500_BANK_RTC,
+ .nranges = 2,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x00,
+ .last = 0x04,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x06,
+ .last = 0x0C,
+ .perm = AB5500_PERM_RW,
+ },
+ },
+ },
+ [AB5500_BANK_STARTUP] = {
+ .bankid = AB5500_BANK_STARTUP,
+ .nranges = 12,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x00,
+ .last = 0x01,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x1F,
+ .last = 0x1F,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x2E,
+ .last = 0x2E,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0x2F,
+ .last = 0x30,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x50,
+ .last = 0x51,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x60,
+ .last = 0x61,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x66,
+ .last = 0x8A,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x8C,
+ .last = 0x96,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0xAA,
+ .last = 0xB4,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0xB7,
+ .last = 0xBF,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0xC1,
+ .last = 0xCA,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0xD3,
+ .last = 0xE0,
+ .perm = AB5500_PERM_RW,
+ },
+ },
+ },
+ [AB5500_BANK_DBI_ECI] = {
+ .bankid = AB5500_BANK_DBI_ECI,
+ .nranges = 3,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x00,
+ .last = 0x07,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x10,
+ .last = 0x10,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x13,
+ .last = 0x13,
+ .perm = AB5500_PERM_RW,
+ },
+ },
+ },
+ [AB5500_BANK_CHG] = {
+ .bankid = AB5500_BANK_CHG,
+ .nranges = 2,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x11,
+ .last = 0x11,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0x12,
+ .last = 0x1B,
+ .perm = AB5500_PERM_RW,
+ },
+ },
+ },
+ [AB5500_BANK_FG_BATTCOM_ACC] = {
+ .bankid = AB5500_BANK_FG_BATTCOM_ACC,
+ .nranges = 2,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x00,
+ .last = 0x0B,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0x0C,
+ .last = 0x10,
+ .perm = AB5500_PERM_RW,
+ },
+ },
+ },
+ [AB5500_BANK_USB] = {
+ .bankid = AB5500_BANK_USB,
+ .nranges = 12,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x01,
+ .last = 0x01,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x80,
+ .last = 0x83,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x87,
+ .last = 0x8A,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x8B,
+ .last = 0x8B,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0x91,
+ .last = 0x92,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0x93,
+ .last = 0x93,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x94,
+ .last = 0x94,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0xA8,
+ .last = 0xB0,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0xB2,
+ .last = 0xB2,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0xB4,
+ .last = 0xBC,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0xBF,
+ .last = 0xBF,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0xC1,
+ .last = 0xC5,
+ .perm = AB5500_PERM_RO,
+ },
+ },
+ },
+ [AB5500_BANK_IT] = {
+ .bankid = AB5500_BANK_IT,
+ .nranges = 4,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x00,
+ .last = 0x02,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0x20,
+ .last = 0x36,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0x40,
+ .last = 0x56,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0x60,
+ .last = 0x76,
+ .perm = AB5500_PERM_RO,
+ },
+ },
+ },
+ [AB5500_BANK_VDDDIG_IO_I2C_CLK_TST] = {
+ .bankid = AB5500_BANK_VDDDIG_IO_I2C_CLK_TST,
+ .nranges = 7,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x02,
+ .last = 0x02,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x12,
+ .last = 0x12,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x30,
+ .last = 0x34,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x40,
+ .last = 0x44,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x50,
+ .last = 0x54,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x60,
+ .last = 0x64,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x70,
+ .last = 0x74,
+ .perm = AB5500_PERM_RW,
+ },
+ },
+ },
+ [AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP] = {
+ .bankid = AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP,
+ .nranges = 13,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x01,
+ .last = 0x01,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x02,
+ .last = 0x02,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0x0D,
+ .last = 0x0F,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x1C,
+ .last = 0x1C,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x1E,
+ .last = 0x1E,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x20,
+ .last = 0x21,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x25,
+ .last = 0x25,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x28,
+ .last = 0x2A,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x30,
+ .last = 0x33,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x40,
+ .last = 0x43,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x50,
+ .last = 0x53,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x60,
+ .last = 0x63,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x70,
+ .last = 0x73,
+ .perm = AB5500_PERM_RW,
+ },
+ },
+ },
+ [AB5500_BANK_VIBRA] = {
+ .bankid = AB5500_BANK_VIBRA,
+ .nranges = 2,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x10,
+ .last = 0x13,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0xFE,
+ .last = 0xFE,
+ .perm = AB5500_PERM_RW,
+ },
+ },
+ },
+ [AB5500_BANK_AUDIO_HEADSETUSB] = {
+ .bankid = AB5500_BANK_AUDIO_HEADSETUSB,
+ .nranges = 2,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x00,
+ .last = 0x48,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0xEB,
+ .last = 0xFB,
+ .perm = AB5500_PERM_RW,
+ },
+ },
+ },
+ [AB5500_BANK_SIM_USBSIM] = {
+ .bankid = AB5500_BANK_SIM_USBSIM,
+ .nranges = 1,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x13,
+ .last = 0x19,
+ .perm = AB5500_PERM_RW,
+ },
+ },
+ },
+ [AB5500_BANK_VDENC] = {
+ .bankid = AB5500_BANK_VDENC,
+ .nranges = 12,
+ .range = (struct ab5500_reg_range[]) {
+ {
+ .first = 0x00,
+ .last = 0x08,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x09,
+ .last = 0x09,
+ .perm = AB5500_PERM_RO,
+ },
+ {
+ .first = 0x0A,
+ .last = 0x12,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x15,
+ .last = 0x19,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x1B,
+ .last = 0x21,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x27,
+ .last = 0x2C,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x41,
+ .last = 0x41,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x45,
+ .last = 0x5B,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x5D,
+ .last = 0x5D,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x69,
+ .last = 0x69,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x6C,
+ .last = 0x6D,
+ .perm = AB5500_PERM_RW,
+ },
+ {
+ .first = 0x80,
+ .last = 0x81,
+ .perm = AB5500_PERM_RW,
+ },
+ },
+ },
+};
+
+static int ab5500_registers_print(struct seq_file *s, void *p)
+{
+ struct ab5500 *ab = s->private;
+ unsigned int i;
+ u8 bank = (u8)ab->debug_bank;
+
+ seq_printf(s, "ab5500 register values:\n");
+ for (bank = 0; bank < AB5500_NUM_BANKS; bank++) {
+ seq_printf(s, " bank %u, %s (0x%x):\n", bank,
+ bankinfo[bank].name,
+ bankinfo[bank].slave_addr);
+ for (i = 0; i < ab5500_reg_ranges[bank].nranges; i++) {
+ u8 reg;
+ int err;
+
+ for (reg = ab5500_reg_ranges[bank].range[i].first;
+ reg <= ab5500_reg_ranges[bank].range[i].last;
+ reg++) {
+ u8 value;
+
+ err = ab5500_get_register_interruptible_raw(ab,
+ bank, reg,
+ &value);
+ if (err < 0) {
+ dev_err(ab->dev, "get_reg failed %d"
+ "bank 0x%x reg 0x%x\n",
+ err, bank, reg);
+ return err;
+ }
+
+ err = seq_printf(s, "[%d/0x%02X]: 0x%02X\n",
+ bank, reg, value);
+ if (err < 0) {
+ dev_err(ab->dev,
+ "seq_printf overflow\n");
+ /*
+ * Error is not returned here since
+ * the output is wanted in any case
+ */
+ return 0;
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+static int ab5500_registers_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ab5500_registers_print, inode->i_private);
+}
+
+static const struct file_operations ab5500_registers_fops = {
+ .open = ab5500_registers_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ab5500_bank_print(struct seq_file *s, void *p)
+{
+ struct ab5500 *ab = s->private;
+
+ seq_printf(s, "%d\n", ab->debug_bank);
+ return 0;
+}
+
+static int ab5500_bank_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ab5500_bank_print, inode->i_private);
+}
+
+static ssize_t ab5500_bank_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private;
+ char buf[32];
+ int buf_size;
+ unsigned long user_bank;
+ int err;
+
+ /* Get userspace string and assure termination */
+ buf_size = min(count, (sizeof(buf) - 1));
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ buf[buf_size] = 0;
+
+ err = strict_strtoul(buf, 0, &user_bank);
+ if (err)
+ return -EINVAL;
+
+ if (user_bank >= AB5500_NUM_BANKS) {
+ dev_err(ab->dev,
+ "debugfs error input > number of banks\n");
+ return -EINVAL;
+ }
+
+ ab->debug_bank = user_bank;
+
+ return buf_size;
+}
+
+static int ab5500_address_print(struct seq_file *s, void *p)
+{
+ struct ab5500 *ab = s->private;
+
+ seq_printf(s, "0x%02X\n", ab->debug_address);
+ return 0;
+}
+
+static int ab5500_address_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ab5500_address_print, inode->i_private);
+}
+
+static ssize_t ab5500_address_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private;
+ char buf[32];
+ int buf_size;
+ unsigned long user_address;
+ int err;
+
+ /* Get userspace string and assure termination */
+ buf_size = min(count, (sizeof(buf) - 1));
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ buf[buf_size] = 0;
+
+ err = strict_strtoul(buf, 0, &user_address);
+ if (err)
+ return -EINVAL;
+ if (user_address > 0xff) {
+ dev_err(ab->dev,
+ "debugfs error input > 0xff\n");
+ return -EINVAL;
+ }
+ ab->debug_address = user_address;
+ return buf_size;
+}
+
+static int ab5500_val_print(struct seq_file *s, void *p)
+{
+ struct ab5500 *ab = s->private;
+ int err;
+ u8 regvalue;
+
+ err = ab5500_get_register_interruptible_raw(ab, (u8)ab->debug_bank,
+ (u8)ab->debug_address, ®value);
+ if (err) {
+ dev_err(ab->dev, "get_reg failed %d, bank 0x%x"
+ ", reg 0x%x\n", err, ab->debug_bank,
+ ab->debug_address);
+ return -EINVAL;
+ }
+ seq_printf(s, "0x%02X\n", regvalue);
+
+ return 0;
+}
+
+static int ab5500_val_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ab5500_val_print, inode->i_private);
+}
+
+static ssize_t ab5500_val_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private;
+ char buf[32];
+ int buf_size;
+ unsigned long user_val;
+ int err;
+ u8 regvalue;
+
+ /* Get userspace string and assure termination */
+ buf_size = min(count, (sizeof(buf)-1));
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ buf[buf_size] = 0;
+
+ err = strict_strtoul(buf, 0, &user_val);
+ if (err)
+ return -EINVAL;
+ if (user_val > 0xff) {
+ dev_err(ab->dev,
+ "debugfs error input > 0xff\n");
+ return -EINVAL;
+ }
+ err = ab5500_mask_and_set_register_interruptible_raw(
+ ab, (u8)ab->debug_bank,
+ (u8)ab->debug_address, 0xFF, (u8)user_val);
+ if (err)
+ return -EINVAL;
+
+ ab5500_get_register_interruptible_raw(ab, (u8)ab->debug_bank,
+ (u8)ab->debug_address, ®value);
+ if (err)
+ return -EINVAL;
+
+ return buf_size;
+}
+
+static const struct file_operations ab5500_bank_fops = {
+ .open = ab5500_bank_open,
+ .write = ab5500_bank_write,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static const struct file_operations ab5500_address_fops = {
+ .open = ab5500_address_open,
+ .write = ab5500_address_write,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static const struct file_operations ab5500_val_fops = {
+ .open = ab5500_val_open,
+ .write = ab5500_val_write,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static struct dentry *ab5500_dir;
+static struct dentry *ab5500_reg_file;
+static struct dentry *ab5500_bank_file;
+static struct dentry *ab5500_address_file;
+static struct dentry *ab5500_val_file;
+
+void __init ab5500_setup_debugfs(struct ab5500 *ab)
+{
+ ab->debug_bank = AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP;
+ ab->debug_address = AB5500_CHIP_ID;
+
+ ab5500_dir = debugfs_create_dir("ab5500", NULL);
+ if (!ab5500_dir)
+ goto exit_no_debugfs;
+
+ ab5500_reg_file = debugfs_create_file("all-bank-registers",
+ S_IRUGO, ab5500_dir, ab, &ab5500_registers_fops);
+ if (!ab5500_reg_file)
+ goto exit_destroy_dir;
+
+ ab5500_bank_file = debugfs_create_file("register-bank",
+ (S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_bank_fops);
+ if (!ab5500_bank_file)
+ goto exit_destroy_reg;
+
+ ab5500_address_file = debugfs_create_file("register-address",
+ (S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_address_fops);
+ if (!ab5500_address_file)
+ goto exit_destroy_bank;
+
+ ab5500_val_file = debugfs_create_file("register-value",
+ (S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_val_fops);
+ if (!ab5500_val_file)
+ goto exit_destroy_address;
+
+ return;
+
+exit_destroy_address:
+ debugfs_remove(ab5500_address_file);
+exit_destroy_bank:
+ debugfs_remove(ab5500_bank_file);
+exit_destroy_reg:
+ debugfs_remove(ab5500_reg_file);
+exit_destroy_dir:
+ debugfs_remove(ab5500_dir);
+exit_no_debugfs:
+ dev_err(ab->dev, "failed to create debugfs entries.\n");
+ return;
+}
+
+void __exit ab5500_remove_debugfs(void)
+{
+ debugfs_remove(ab5500_val_file);
+ debugfs_remove(ab5500_address_file);
+ debugfs_remove(ab5500_bank_file);
+ debugfs_remove(ab5500_reg_file);
+ debugfs_remove(ab5500_dir);
+}
new file mode 100644
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2011 ST-Ericsson
+ * License terms: GNU General Public License (GPL) version 2
+ * Debugfs interface to the AB5500 core driver
+ */
+
+#ifdef CONFIG_DEBUG_FS
+
+void ab5500_setup_debugfs(struct ab5500 *ab);
+void ab5500_remove_debugfs(void);
+
+#else /* !CONFIG_DEBUG_FS */
+
+static inline void ab5500_setup_debugfs(struct ab5500 *ab)
+{
+}
+
+static inline void ab5500_remove_debugfs(void)
+{
+}
+
+#endif