static ssize_t show_dump_regs(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct pcf50633 *pcf = dev_get_drvdata(dev);
u8 dump[16];
int n, n1, idx = 0;
char *buf1 = buf;
static u8 address_no_read[] = {
PCF50633_REG_INT1,
PCF50633_REG_INT2,
PCF50633_REG_INT3,
PCF50633_REG_INT4,
PCF50633_REG_INT5,
0
};
for (n = 0; n < 256; n += sizeof(dump)) {
for (n1 = 0; n1 < sizeof(dump); n1++)
if (n == address_no_read[idx]) {
idx++;
dump[n1] = 0x00;
} else
dump[n1] = pcf50633_reg_read(pcf, n + n1);
hex_dump_to_buffer(dump, sizeof(dump), 16, 1, buf1, 128, 0);
buf1 += strlen(buf1);
*buf1++ = '\n';
*buf1 = '\0';
}
return buf1 - buf;
}
static ssize_t lis302dl_dump(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct lis302dl_info *lis = dev_get_drvdata(dev);
int n = 0;
uint8_t reg[0x40];
char *end = buf;
unsigned long flags;
local_irq_save(flags);
for (n = 0; n < sizeof(reg); n++)
reg[n] = lis_reg_read(lis, n);
local_irq_restore(flags);
for (n = 0; n < sizeof(reg); n += 16) {
hex_dump_to_buffer(reg + n, 16, 16, 1, end, 128, 0);
end += strlen(end);
*end++ = '\n';
*end++ = '\0';
}
return end - buf;
}
static void z180_dump_ringbuffer(struct kgsl_device *device)
{
unsigned int rb_size;
unsigned int *rb_hostptr;
unsigned int rb_words;
unsigned int rb_gpuaddr;
struct z180_device *z180_dev = Z180_DEVICE(device);
unsigned int i;
char linebuf[CHARS_PER_LINE];
KGSL_LOG_DUMP(device, "Z180 ringbuffer dump\n");
rb_hostptr = (unsigned int *) z180_dev->ringbuffer.cmdbufdesc.hostptr;
rb_size = Z180_RB_SIZE;
rb_gpuaddr = z180_dev->ringbuffer.cmdbufdesc.gpuaddr;
rb_words = rb_size/sizeof(unsigned int);
KGSL_LOG_DUMP(device, "ringbuffer size: %u\n", rb_size);
KGSL_LOG_DUMP(device, "rb_words: %d\n", rb_words);
for (i = 0; i < rb_words; i += WORDS_PER_LINE) {
hex_dump_to_buffer(rb_hostptr+i,
rb_size - i*sizeof(unsigned int),
WORDS_PER_LINE*sizeof(unsigned int),
sizeof(unsigned int), linebuf,
sizeof(linebuf), false);
KGSL_LOG_DUMP(device, "RB: %04X: %s\n",
rb_gpuaddr + i*sizeof(unsigned int), linebuf);
}
}
/*
* send msg to ISAR mailbox
* if msg is NULL use isar->buf
*/
static int
send_mbox(struct isar_hw *isar, u8 his, u8 creg, u8 len, u8 *msg)
{
if (!waitforHIA(isar, 1000))
return 0;
pr_debug("send_mbox(%02x,%02x,%d)\n", his, creg, len);
isar->write_reg(isar->hw, ISAR_CTRL_H, creg);
isar->write_reg(isar->hw, ISAR_CTRL_L, len);
isar->write_reg(isar->hw, ISAR_WADR, 0);
if (!msg)
msg = isar->buf;
if (msg && len) {
isar->write_fifo(isar->hw, ISAR_MBOX, msg, len);
if (isar->ch[0].bch.debug & DEBUG_HW_BFIFO) {
int l = 0;
while (l < (int)len) {
hex_dump_to_buffer(msg + l, len - l, 32, 1,
isar->log, 256, 1);
pr_debug("%s: %s %02x: %s\n", isar->name,
__func__, l, isar->log);
l += 32;
}
}
}
isar->write_reg(isar->hw, ISAR_HIS, his);
waitforHIA(isar, 1000);
return 1;
}
static void debug_hexdump(struct debug_command *cmd,
const char *arg,
debug_printf_cb cb)
{
const u8 *ptr;
unsigned groupsize;
unsigned i, linelen;
unsigned rowsize = 32;
unsigned len;
unsigned remaining;
unsigned char linebuf[32 * 3 + 2 + 32 + 1];
if (sscanf(arg, "%u 0x%x@0x%x", &groupsize, &len, &ptr) != 3) {
cb("Usage: %s 1|2|4|8 <hex size>@<hex VA address>\n", cmd->name);
return;
}
remaining = len;
for (i = 0; i < len; i += rowsize) {
linelen = min(remaining, rowsize);
remaining -= rowsize;
cb("%p: ", ptr + i);
if (!tlb_check((vaddr_t) (ptr + i),
(vaddr_t) (ptr + linelen),
true, false)) {
cb("fault\n");
break;
}
hex_dump_to_buffer(ptr + i, linelen, rowsize, groupsize,
linebuf, sizeof(linebuf), true);
cb("%s\n", linebuf);
}
}
int get_input_lines_info(struct hdpvr_device *dev)
{
#ifdef HDPVR_DEBUG
char print_buf[9];
#endif
int ret, lines;
mutex_lock(&dev->usbc_mutex);
ret = usb_control_msg(dev->udev,
usb_rcvctrlpipe(dev->udev, 0),
0x81, 0x80 | 0x38,
0x1800, 0x0003,
dev->usbc_buf, 3,
1000);
#ifdef HDPVR_DEBUG
if (hdpvr_debug & MSG_INFO) {
hex_dump_to_buffer(dev->usbc_buf, 3, 16, 1, print_buf,
sizeof(print_buf), 0);
v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
"get input lines info returned: %d, %s\n", ret,
print_buf);
}
#endif
lines = dev->usbc_buf[1] << 8 | dev->usbc_buf[0];
mutex_unlock(&dev->usbc_mutex);
return lines;
}
/**
* print_hex_dump - print a text hex dump to syslog for a binary blob of data
* @level: kernel log level (e.g. KERN_DEBUG)
* @prefix_str: string to prefix each line with;
* caller supplies trailing spaces for alignment if desired
* @prefix_type: controls whether prefix of an offset, address, or none
* is printed (%DUMP_PREFIX_OFFSET, %DUMP_PREFIX_ADDRESS, %DUMP_PREFIX_NONE)
* @rowsize: number of bytes to print per line; must be 16 or 32
* @groupsize: number of bytes to print at a time (1, 2, 4, 8; default = 1)
* @buf: data blob to dump
* @len: number of bytes in the @buf
* @ascii: include ASCII after the hex output
*
* Given a buffer of u8 data, print_hex_dump() prints a hex + ASCII dump
* to the kernel log at the specified kernel log level, with an optional
* leading prefix.
*
* print_hex_dump() works on one "line" of output at a time, i.e.,
* 16 or 32 bytes of input data converted to hex + ASCII output.
* print_hex_dump() iterates over the entire input @buf, breaking it into
* "line size" chunks to format and print.
*
* E.g.:
* print_hex_dump(KERN_DEBUG, "raw data: ", DUMP_PREFIX_ADDRESS,
* 16, 1, frame->data, frame->len, true);
*
* Example output using %DUMP_PREFIX_OFFSET and 1-byte mode:
* 0009ab42: 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f @ABCDEFGHIJKLMNO
* Example output using %DUMP_PREFIX_ADDRESS and 4-byte mode:
* ffffffff88089af0: 73727170 77767574 7b7a7978 7f7e7d7c pqrstuvwxyz{|}~.
*/
void print_hex_dump(const char *level, const char *prefix_str, int prefix_type,
int rowsize, int groupsize,
const void *buf, size_t len, bool ascii)
{
const u8 *ptr = buf;
int i, linelen, remaining = len;
unsigned char linebuf[32 * 3 + 2 + 32 + 1];
if (rowsize != 16 && rowsize != 32)
rowsize = 16;
for (i = 0; i < len; i += rowsize) {
linelen = min(remaining, rowsize);
remaining -= rowsize;
hex_dump_to_buffer(ptr + i, linelen, rowsize, groupsize,
linebuf, sizeof(linebuf), ascii);
switch (prefix_type) {
case DUMP_PREFIX_ADDRESS:
printk("%s%s%p: %s\n",
level, prefix_str, ptr + i, linebuf);
break;
case DUMP_PREFIX_OFFSET:
printk("%s%s%.8x: %s\n", level, prefix_str, i, linebuf);
break;
default:
printk("%s%s%s\n", level, prefix_str, linebuf);
break;
}
}
}
static void __init test_hexdump(size_t len, int rowsize, int groupsize,
bool ascii)
{
char test[32 * 3 + 2 + 32 + 1];
char real[32 * 3 + 2 + 32 + 1];
char *p;
const char **result;
size_t l = len;
int gs = groupsize, rs = rowsize;
unsigned int i;
hex_dump_to_buffer(data_b, l, rs, gs, real, sizeof(real), ascii);
if (rs != 16 && rs != 32)
rs = 16;
if (l > rs)
l = rs;
if (!is_power_of_2(gs) || gs > 8 || (len % gs != 0))
gs = 1;
if (gs == 8)
result = test_data_8_le;
else if (gs == 4)
result = test_data_4_le;
else if (gs == 2)
result = test_data_2_le;
else
result = test_data_1_le;
memset(test, ' ', sizeof(test));
/* hex dump */
p = test;
for (i = 0; i < l / gs; i++) {
const char *q = *result++;
size_t amount = strlen(q);
strncpy(p, q, amount);
p += amount + 1;
}
if (i)
p--;
/* ASCII part */
if (ascii) {
p = test + rs * 2 + rs / gs + 1;
strncpy(p, data_a, l);
p += l;
}
*p = '\0';
if (strcmp(test, real)) {
pr_err("Len: %zu row: %d group: %d\n", len, rowsize, groupsize);
pr_err("Result: '%s'\n", real);
pr_err("Expect: '%s'\n", test);
}
}
static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
const char *prefix)
{
char printbuf[16 * 3 + 2];
int i = 0;
while (i < len) {
int l = min(len - i, 16);
hex_dump_to_buffer(p + i, l, 16, 1, printbuf,
sizeof(printbuf), false);
seq_printf(s, "%s%s\n", prefix, printbuf);
i += l;
}
}
static ssize_t mbox_test_message_read(struct file *filp, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct mbox_test_device *tdev = filp->private_data;
unsigned long flags;
char *touser, *ptr;
int l = 0;
int ret;
touser = kzalloc(MBOX_HEXDUMP_MAX_LEN + 1, GFP_KERNEL);
if (!touser)
return -ENOMEM;
if (!tdev->rx_channel) {
ret = snprintf(touser, 20, "<NO RX CAPABILITY>\n");
ret = simple_read_from_buffer(userbuf, count, ppos,
touser, ret);
goto out;
}
if (tdev->rx_buffer[0] == '\0') {
ret = snprintf(touser, 9, "<EMPTY>\n");
ret = simple_read_from_buffer(userbuf, count, ppos,
touser, ret);
goto out;
}
spin_lock_irqsave(&tdev->lock, flags);
ptr = tdev->rx_buffer;
while (l < MBOX_HEXDUMP_MAX_LEN) {
hex_dump_to_buffer(ptr,
MBOX_BYTES_PER_LINE,
MBOX_BYTES_PER_LINE, 1, touser + l,
MBOX_HEXDUMP_LINE_LEN, true);
ptr += MBOX_BYTES_PER_LINE;
l += MBOX_HEXDUMP_LINE_LEN;
*(touser + (l - 1)) = '\n';
}
*(touser + l) = '\0';
memset(tdev->rx_buffer, 0, MBOX_MAX_MSG_LEN);
spin_unlock_irqrestore(&tdev->lock, flags);
ret = simple_read_from_buffer(userbuf, count, ppos, touser, MBOX_HEXDUMP_MAX_LEN);
out:
kfree(touser);
return ret;
}
static void
ufsdbg_pr_buf_to_std(struct seq_file *file, void *buff, int size, char *str)
{
int i;
char linebuf[38];
int lines = size/BUFF_LINE_CAPACITY +
(size % BUFF_LINE_CAPACITY ? 1 : 0);
for (i = 0; i < lines; i++) {
hex_dump_to_buffer(buff + i * BUFF_LINE_CAPACITY,
BUFF_LINE_CAPACITY, BUFF_LINE_CAPACITY, 4,
linebuf, sizeof(linebuf), false);
seq_printf(file, "%s [%x]: %s\n", str, i * BUFF_LINE_CAPACITY,
linebuf);
}
}
static int wil_txdesc_debugfs_show(struct seq_file *s, void *data)
{
struct wil6210_priv *wil = s->private;
struct vring *vring = &(wil->vring_tx[0]);
if (!vring->va) {
seq_printf(s, "No Tx VRING\n");
return 0;
}
if (dbg_txdesc_index < vring->size) {
volatile struct vring_tx_desc *d =
&(vring->va[dbg_txdesc_index].tx);
volatile u32 *u = (volatile u32 *)d;
struct sk_buff *skb = vring->ctx[dbg_txdesc_index];
seq_printf(s, "Tx[%3d] = {\n", dbg_txdesc_index);
seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n",
u[0], u[1], u[2], u[3]);
seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
u[4], u[5], u[6], u[7]);
seq_printf(s, " SKB = %p\n", skb);
if (skb) {
char printbuf[16 * 3 + 2];
int i = 0;
int len = skb_headlen(skb);
void *p = skb->data;
seq_printf(s, " len = %d\n", len);
while (i < len) {
int l = min(len - i, 16);
hex_dump_to_buffer(p + i, l, 16, 1, printbuf,
sizeof(printbuf), false);
seq_printf(s, " : %s\n", printbuf);
i += l;
}
}
seq_printf(s, "}\n");
} else {
seq_printf(s, "TxDesc index (%d) >= size (%d)\n",
dbg_txdesc_index, vring->size);
}
return 0;
}
static ssize_t
il_dbgfs_nvm_read(struct file *file, char __user *user_buf, size_t count,
loff_t *ppos)
{
ssize_t ret;
struct il_priv *il = file->private_data;
int pos = 0, ofs = 0, buf_size = 0;
const u8 *ptr;
char *buf;
u16 eeprom_ver;
size_t eeprom_len = il->cfg->eeprom_size;
buf_size = 4 * eeprom_len + 256;
if (eeprom_len % 16) {
IL_ERR("NVM size is not multiple of 16.\n");
return -ENODATA;
}
ptr = il->eeprom;
if (!ptr) {
IL_ERR("Invalid EEPROM memory\n");
return -ENOMEM;
}
/* 4 characters for byte 0xYY */
buf = kzalloc(buf_size, GFP_KERNEL);
if (!buf) {
IL_ERR("Can not allocate Buffer\n");
return -ENOMEM;
}
eeprom_ver = il_eeprom_query16(il, EEPROM_VERSION);
pos +=
scnprintf(buf + pos, buf_size - pos, "EEPROM " "version: 0x%x\n",
eeprom_ver);
for (ofs = 0; ofs < eeprom_len; ofs += 16) {
pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
hex_dump_to_buffer(ptr + ofs, 16, 16, 2, buf + pos,
buf_size - pos, 0);
pos += strlen(buf + pos);
if (buf_size - pos > 0)
buf[pos++] = '\n';
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
static void __init test_hexdump_overflow(size_t buflen, size_t len,
int rowsize, int groupsize,
bool ascii)
{
char test[TEST_HEXDUMP_BUF_SIZE];
char buf[TEST_HEXDUMP_BUF_SIZE];
int rs = rowsize, gs = groupsize;
int ae, he, e, f, r;
bool a;
total_tests++;
memset(buf, FILL_CHAR, sizeof(buf));
r = hex_dump_to_buffer(data_b, len, rs, gs, buf, buflen, ascii);
/*
* Caller must provide the data length multiple of groupsize. The
* calculations below are made with that assumption in mind.
*/
ae = rs * 2 /* hex */ + rs / gs /* spaces */ + 1 /* space */ + len /* ascii */;
he = (gs * 2 /* hex */ + 1 /* space */) * len / gs - 1 /* no trailing space */;
if (ascii)
e = ae;
else
e = he;
f = min_t(int, e + 1, buflen);
if (buflen) {
test_hexdump_prepare_test(len, rs, gs, test, sizeof(test), ascii);
test[f - 1] = '\0';
}
memset(test + f, FILL_CHAR, sizeof(test) - f);
a = r == e && !memcmp(test, buf, TEST_HEXDUMP_BUF_SIZE);
buf[sizeof(buf) - 1] = '\0';
if (!a) {
pr_err("Len: %zu buflen: %zu strlen: %zu\n",
len, buflen, strnlen(buf, sizeof(buf)));
pr_err("Result: %d '%s'\n", r, buf);
pr_err("Expect: %d '%s'\n", e, test);
failed_tests++;
}
}
static ssize_t iwl_dbgfs_nvm_read(struct file *file,
char __user *user_buf,
size_t count,
loff_t *ppos)
{
ssize_t ret;
struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
int pos = 0, ofs = 0, buf_size = 0;
const u8 *ptr;
char *buf;
size_t eeprom_len = priv->cfg->eeprom_size;
buf_size = 4 * eeprom_len + 256;
if (eeprom_len % 16) {
IWL_ERR(priv, "NVM size is not multiple of 16.\n");
return -ENODATA;
}
ptr = priv->eeprom;
if (!ptr) {
IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
return -ENOMEM;
}
/* 4 characters for byte 0xYY */
buf = kzalloc(buf_size, GFP_KERNEL);
if (!buf) {
IWL_ERR(priv, "Can not allocate Buffer\n");
return -ENOMEM;
}
pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s\n",
(priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
? "OTP" : "EEPROM");
for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
buf_size - pos, 0);
pos += strlen(buf);
if (buf_size - pos > 0)
buf[pos++] = '\n';
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
void
print_hex_dump(int rowsize, int groupsize, const void *buf, size_t len, bool ascii)
{
const uint8_t *ptr = buf;
int i, linelen, remaining = len;
unsigned char linebuf[200];
if (rowsize != 16 && rowsize != 32)
rowsize = 16;
for (i = 0; i < len; i += rowsize) {
linelen = ((remaining) < (rowsize) ? (remaining) : (rowsize));
remaining -= rowsize;
hex_dump_to_buffer(ptr + i, linelen, rowsize, groupsize,
linebuf, sizeof(linebuf), ascii);
printf("%s\n", linebuf);
}
}
struct hdpvr_video_info *get_video_info(struct hdpvr_device *dev)
{
struct hdpvr_video_info *vidinf = NULL;
#ifdef HDPVR_DEBUG
char print_buf[15];
#endif
int ret;
vidinf = kzalloc(sizeof(struct hdpvr_video_info), GFP_KERNEL);
if (!vidinf) {
v4l2_err(&dev->v4l2_dev, "out of memory\n");
goto err;
}
mutex_lock(&dev->usbc_mutex);
ret = usb_control_msg(dev->udev,
usb_rcvctrlpipe(dev->udev, 0),
0x81, 0x80 | 0x38,
0x1400, 0x0003,
dev->usbc_buf, 5,
1000);
if (ret == 5) {
vidinf->width = dev->usbc_buf[1] << 8 | dev->usbc_buf[0];
vidinf->height = dev->usbc_buf[3] << 8 | dev->usbc_buf[2];
vidinf->fps = dev->usbc_buf[4];
}
#ifdef HDPVR_DEBUG
if (hdpvr_debug & MSG_INFO) {
hex_dump_to_buffer(dev->usbc_buf, 5, 16, 1, print_buf,
sizeof(print_buf), 0);
v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
"get video info returned: %d, %s\n", ret, print_buf);
}
#endif
mutex_unlock(&dev->usbc_mutex);
if (!vidinf->width || !vidinf->height || !vidinf->fps) {
kfree(vidinf);
vidinf = NULL;
}
err:
return vidinf;
}
static int kgsl_hex_dump(const char *prefix, int c, uint8_t *data,
int rowc, int linec, char __user *buff)
{
int ss;
/* Prefix of 20 chars max, 32 bytes per row, in groups of four - that's
* 8 groups at 8 chars per group plus a space, plus new-line, plus
* ending character */
char linebuf[20 + 64 + 1 + 1];
ss = snprintf(linebuf, sizeof(linebuf), prefix, c);
hex_dump_to_buffer(data, linec, rowc, 4, linebuf+ss,
sizeof(linebuf)-ss, 0);
strlcat(linebuf, "\n", sizeof(linebuf));
linebuf[sizeof(linebuf)-1] = 0;
ss = strlen(linebuf);
if (copy_to_user(buff, linebuf, ss+1))
return -EFAULT;
return ss;
}
static void __hexdump(void *mem, unsigned long size)
{
#define WORDS_PER_LINE 4
#define WORD_SIZE 4
#define LINE_SIZE (WORDS_PER_LINE * WORD_SIZE)
#define LINE_BUF_SIZE (WORDS_PER_LINE * WORD_SIZE * 3 \
+ WORDS_PER_LINE + 4)
unsigned long addr;
char linebuf[LINE_BUF_SIZE];
int numline = size / LINE_SIZE;
int i;
for (i = 0; i < numline; i++) {
addr = (unsigned long)mem + i * LINE_SIZE;
hex_dump_to_buffer((const void *)addr,
LINE_SIZE, LINE_SIZE,
WORD_SIZE, linebuf, sizeof(linebuf), 1);
pr_info(" %lx : %s\n", addr, linebuf);
}
}
void fbtft_dbg_hex(const struct device *dev, int groupsize,
void *buf, size_t len, const char *fmt, ...)
{
va_list args;
static char textbuf[512];
char *text = textbuf;
size_t text_len;
va_start(args, fmt);
text_len = vscnprintf(text, sizeof(textbuf), fmt, args);
va_end(args);
hex_dump_to_buffer(buf, len, 32, groupsize, text + text_len,
512 - text_len, false);
if (len > 32)
dev_info(dev, "%s ...\n", text);
else
dev_info(dev, "%s\n", text);
}
void
visorchannel_dump_section(VISORCHANNEL *chan, char *s,
int off, int len, struct seq_file *seq)
{
char *buf, *tbuf, *fmtbuf;
int fmtbufsize = 0;
int i;
int errcode = 0;
fmtbufsize = 100 * COVQ(len, 16);
buf = kmalloc(len, GFP_KERNEL|__GFP_NORETRY);
fmtbuf = kmalloc(fmtbufsize, GFP_KERNEL|__GFP_NORETRY);
if (buf == NULL || fmtbuf == NULL)
goto Away;
errcode = visorchannel_read(chan, off, buf, len);
if (errcode < 0) {
ERRDRV("%s failed to read %s from channel errcode=%d",
s, __func__, errcode);
goto Away;
}
seq_printf(seq, "channel %s:\n", s);
tbuf = buf;
while (len > 0) {
i = (len < 16) ? len : 16;
hex_dump_to_buffer(tbuf, i, 16, 1, fmtbuf, fmtbufsize, TRUE);
seq_printf(seq, "%s\n", fmtbuf);
tbuf += 16;
len -= 16;
}
Away:
if (buf != NULL) {
kfree(buf);
buf = NULL;
}
if (fmtbuf != NULL) {
kfree(fmtbuf);
fmtbuf = NULL;
}
}
/**
* print_hex_dump - print a text hex dump to syslog for a binary blob of data
* @level: kernel log level (e.g. KERN_DEBUG)
* @prefix_str: string to prefix each line with;
* caller supplies trailing spaces for alignment if desired
* @rowsize: number of bytes to print per line; must be 16 or 32
* @groupsize: number of bytes to print at a time (1, 2, 4, 8; default = 1)
* @buf: data blob to dump
* @len: number of bytes in the @buf
* @ascii: include ASCII after the hex output
*
* Given a buffer of u8 data, print_hex_dump() prints a hex + ASCII dump
* to the kernel log at the specified kernel log level, with an optional
* leading prefix.
*
* print_hex_dump() works on one "line" of output at a time, i.e.,
* 16 or 32 bytes of input data converted to hex + ASCII output.
* print_hex_dump() iterates over the entire input @buf, breaking it into
* "line size" chunks to format and print.
*
* E.g.:
* print_hex_dump(LOG_NOTICE, "data: ", 16, 1, frame->data, frame->len, 0);
*/
void print_hex_dump(log_module_level_t level, const char *prefix_str,
int rowsize, int groupsize,
const void *buf, int len, int ascii)
{
const uint8_t *ptr = buf;
int i, linelen, remaining = len;
char linebuf[32 * 3 + 2 + 32 + 1];
if (rowsize != 16 && rowsize != 32)
rowsize = 16;
for (i = 0; i < len; i += rowsize)
{
linelen = min(remaining, rowsize);
remaining -= rowsize;
hex_dump_to_buffer(ptr + i, linelen, rowsize, groupsize,
linebuf, sizeof(linebuf), ascii);
LOG(lm_main, level, ("%s%s\n", prefix_str, linebuf));
}
}
/*
* receive message from ISAR mailbox
* if msg is NULL use isar->buf
*/
static void
rcv_mbox(struct isar_hw *isar, u8 *msg)
{
if (!msg)
msg = isar->buf;
isar->write_reg(isar->hw, ISAR_RADR, 0);
if (msg && isar->clsb) {
isar->read_fifo(isar->hw, ISAR_MBOX, msg, isar->clsb);
if (isar->ch[0].bch.debug & DEBUG_HW_BFIFO) {
int l = 0;
while (l < (int)isar->clsb) {
hex_dump_to_buffer(msg + l, isar->clsb - l, 32,
1, isar->log, 256, 1);
pr_debug("%s: %s %02x: %s\n", isar->name,
__func__, l, isar->log);
l += 32;
}
}
}
isar->write_reg(isar->hw, ISAR_IIA, 0);
}
static char *
get_hex_data(char *dbuf, struct urb *urb, int event, int status, size_t max_len)
{
char *ubuf = urb->transfer_buffer;
size_t len =
event ? urb->actual_length : urb->transfer_buffer_length;
if (status == -EINPROGRESS)
status = 0;
/*Only dump ep in completions and epout submissions*/
if (len && !status && ((usb_urb_dir_in(urb) && event) ||
(usb_urb_dir_in(urb) && !event))) {
if (len >= max_len)
len = max_len;
hex_dump_to_buffer(ubuf, len, 32, 4, dbuf, HEX_DUMP_LEN, 0);
} else {
dbuf = "";
}
return dbuf;
}
static void __init test_hexdump_overflow(bool ascii)
{
char buf[56];
const char *t = test_data_1_le[0];
size_t l = get_random_int() % sizeof(buf);
bool a;
int e, r;
memset(buf, ' ', sizeof(buf));
r = hex_dump_to_buffer(data_b, 1, 16, 1, buf, l, ascii);
if (ascii)
e = 50;
else
e = 2;
buf[e + 2] = '\0';
if (!l) {
a = r == e && buf[0] == ' ';
} else if (l < 3) {
a = r == e && buf[0] == '\0';
} else if (l < 4) {
a = r == e && !strcmp(buf, t);
} else if (ascii) {
if (l < 51)
a = r == e && buf[l - 1] == '\0' && buf[l - 2] == ' ';
else
a = r == e && buf[50] == '\0' && buf[49] == '.';
} else {
a = r == e && buf[e] == '\0';
}
if (!a) {
pr_err("Len: %zu rc: %u strlen: %zu\n", l, r, strlen(buf));
pr_err("Result: '%s'\n", buf);
}
}
static char *get_hex_data(char *dbuf, struct urb *urb, int event, int status)
{
int ep_addr = urb->ep->desc.bEndpointAddress;
char *ubuf = urb->transfer_buffer;
size_t len =
event ? urb->actual_length : urb->transfer_buffer_length;
if (status == -EINPROGRESS)
status = 0;
/*Only dump ep in completions and epout submissions*/
if (len && !status &&
(((ep_addr & USB_DIR_IN) && event) ||
(!(ep_addr & USB_DIR_IN) && !event))) {
if (len >= 32)
len = 32;
hex_dump_to_buffer(ubuf, len, 32, 4, dbuf, HEX_DUMP_LEN, 0);
} else {
dbuf = "";
}
return dbuf;
}
static void __init test_hexdump(size_t len, int rowsize, int groupsize,
bool ascii)
{
char test[TEST_HEXDUMP_BUF_SIZE];
char real[TEST_HEXDUMP_BUF_SIZE];
total_tests++;
memset(real, FILL_CHAR, sizeof(real));
hex_dump_to_buffer(data_b, len, rowsize, groupsize, real, sizeof(real),
ascii);
memset(test, FILL_CHAR, sizeof(test));
test_hexdump_prepare_test(len, rowsize, groupsize, test, sizeof(test),
ascii);
if (memcmp(test, real, TEST_HEXDUMP_BUF_SIZE)) {
pr_err("Len: %zu row: %d group: %d\n", len, rowsize, groupsize);
pr_err("Result: '%s'\n", real);
pr_err("Expect: '%s'\n", test);
failed_tests++;
}
}
bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector)
{
struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv;
u8 msg[DP_DPCD_SIZE];
int ret;
char dpcd_hex_dump[DP_DPCD_SIZE * 3];
ret = drm_dp_dpcd_read(&radeon_connector->ddc_bus->aux, DP_DPCD_REV, msg,
DP_DPCD_SIZE);
if (ret > 0) {
memcpy(dig_connector->dpcd, msg, DP_DPCD_SIZE);
hex_dump_to_buffer(dig_connector->dpcd, sizeof(dig_connector->dpcd),
32, 1, dpcd_hex_dump, sizeof(dpcd_hex_dump), false);
DRM_DEBUG_KMS("DPCD: %s\n", dpcd_hex_dump);
radeon_dp_probe_oui(radeon_connector);
return true;
}
dig_connector->dpcd[0] = 0;
return false;
}
static irqreturn_t wcd9xxx_irq_thread(int irq, void *data)
{
int ret;
int i;
struct intr_data irqdata;
char linebuf[128];
static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 1);
struct wcd9xxx_core_resource *wcd9xxx_res = data;
int num_irq_regs = wcd9xxx_res->num_irq_regs;
u8 status[num_irq_regs], status1[num_irq_regs];
if (unlikely(wcd9xxx_lock_sleep(wcd9xxx_res) == false)) {
dev_err(wcd9xxx_res->dev, "Failed to hold suspend\n");
return IRQ_NONE;
}
if (!wcd9xxx_res->codec_bulk_read) {
dev_err(wcd9xxx_res->dev,
"%s: Codec Bulk Register read callback not supplied\n",
__func__);
goto err_disable_irq;
}
ret = wcd9xxx_res->codec_bulk_read(wcd9xxx_res,
WCD9XXX_A_INTR_STATUS0,
num_irq_regs, status);
if (ret < 0) {
dev_err(wcd9xxx_res->dev,
"Failed to read interrupt status: %d\n", ret);
goto err_disable_irq;
}
for (i = 0; i < num_irq_regs; i++)
status[i] &= ~wcd9xxx_res->irq_masks_cur[i];
memcpy(status1, status, sizeof(status1));
for (i = 0; i < wcd9xxx_res->intr_table_size; i++) {
irqdata = wcd9xxx_res->intr_table[i];
if (status[BIT_BYTE(irqdata.intr_num)] &
BYTE_BIT_MASK(irqdata.intr_num)) {
wcd9xxx_irq_dispatch(wcd9xxx_res, &irqdata);
status1[BIT_BYTE(irqdata.intr_num)] &=
~BYTE_BIT_MASK(irqdata.intr_num);
}
}
if (unlikely(!memcmp(status, status1, sizeof(status)))) {
if (__ratelimit(&ratelimit)) {
pr_warn("%s: Unhandled irq found\n", __func__);
hex_dump_to_buffer(status, sizeof(status), 16, 1,
linebuf, sizeof(linebuf), false);
pr_warn("%s: status0 : %s\n", __func__, linebuf);
hex_dump_to_buffer(status1, sizeof(status1), 16, 1,
linebuf, sizeof(linebuf), false);
pr_warn("%s: status1 : %s\n", __func__, linebuf);
}
memset(status, 0xff, num_irq_regs);
wcd9xxx_res->codec_bulk_write(wcd9xxx_res,
WCD9XXX_A_INTR_CLEAR0,
num_irq_regs, status);
if (wcd9xxx_get_intf_type() == WCD9XXX_INTERFACE_TYPE_I2C)
wcd9xxx_res->codec_reg_write(wcd9xxx_res,
WCD9XXX_A_INTR_MODE, 0x02);
}
wcd9xxx_unlock_sleep(wcd9xxx_res);
return IRQ_HANDLED;
err_disable_irq:
dev_err(wcd9xxx_res->dev,
"Disable irq %d\n", wcd9xxx_res->irq);
disable_irq_wake(wcd9xxx_res->irq);
disable_irq_nosync(wcd9xxx_res->irq);
wcd9xxx_unlock_sleep(wcd9xxx_res);
return IRQ_NONE;
}
static int _osd_print_system_info(struct osd_dev *od, void *caps)
{
struct osd_request *or;
struct osd_attr get_attrs[] = {
ATTR_DEF_RI(OSD_ATTR_RI_VENDOR_IDENTIFICATION, 8),
ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_IDENTIFICATION, 16),
ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_MODEL, 32),
ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_REVISION_LEVEL, 4),
ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_SERIAL_NUMBER, 64 /*variable*/),
ATTR_DEF_RI(OSD_ATTR_RI_OSD_NAME, 64 /*variable*/),
ATTR_DEF_RI(OSD_ATTR_RI_TOTAL_CAPACITY, 8),
ATTR_DEF_RI(OSD_ATTR_RI_USED_CAPACITY, 8),
ATTR_DEF_RI(OSD_ATTR_RI_NUMBER_OF_PARTITIONS, 8),
ATTR_DEF_RI(OSD_ATTR_RI_CLOCK, 6),
/* IBM-OSD-SIM Has a bug with this one put it last */
ATTR_DEF_RI(OSD_ATTR_RI_OSD_SYSTEM_ID, 20),
};
void *iter = NULL, *pFirst;
int nelem = ARRAY_SIZE(get_attrs), a = 0;
int ret;
or = osd_start_request(od, GFP_KERNEL);
if (!or)
return -ENOMEM;
/* get attrs */
osd_req_get_attributes(or, &osd_root_object);
osd_req_add_get_attr_list(or, get_attrs, ARRAY_SIZE(get_attrs));
ret = osd_finalize_request(or, 0, caps, NULL);
if (ret)
goto out;
ret = osd_execute_request(or);
if (ret) {
OSD_ERR("Failed to detect %s => %d\n", _osd_ver_desc(or), ret);
goto out;
}
osd_req_decode_get_attr_list(or, get_attrs, &nelem, &iter);
OSD_INFO("Detected %s device\n",
_osd_ver_desc(or));
pFirst = get_attrs[a++].val_ptr;
OSD_INFO("VENDOR_IDENTIFICATION [%s]\n",
(char *)pFirst);
pFirst = get_attrs[a++].val_ptr;
OSD_INFO("PRODUCT_IDENTIFICATION [%s]\n",
(char *)pFirst);
pFirst = get_attrs[a++].val_ptr;
OSD_INFO("PRODUCT_MODEL [%s]\n",
(char *)pFirst);
pFirst = get_attrs[a++].val_ptr;
OSD_INFO("PRODUCT_REVISION_LEVEL [%u]\n",
pFirst ? get_unaligned_be32(pFirst) : ~0U);
pFirst = get_attrs[a++].val_ptr;
OSD_INFO("PRODUCT_SERIAL_NUMBER [%s]\n",
(char *)pFirst);
pFirst = get_attrs[a].val_ptr;
OSD_INFO("OSD_NAME [%s]\n", (char *)pFirst);
a++;
pFirst = get_attrs[a++].val_ptr;
OSD_INFO("TOTAL_CAPACITY [0x%llx]\n",
pFirst ? _LLU(get_unaligned_be64(pFirst)) : ~0ULL);
pFirst = get_attrs[a++].val_ptr;
OSD_INFO("USED_CAPACITY [0x%llx]\n",
pFirst ? _LLU(get_unaligned_be64(pFirst)) : ~0ULL);
pFirst = get_attrs[a++].val_ptr;
OSD_INFO("NUMBER_OF_PARTITIONS [%llu]\n",
pFirst ? _LLU(get_unaligned_be64(pFirst)) : ~0ULL);
if (a >= nelem)
goto out;
/* FIXME: Where are the time utilities */
pFirst = get_attrs[a++].val_ptr;
OSD_INFO("CLOCK [0x%02x%02x%02x%02x%02x%02x]\n",
((char *)pFirst)[0], ((char *)pFirst)[1],
((char *)pFirst)[2], ((char *)pFirst)[3],
((char *)pFirst)[4], ((char *)pFirst)[5]);
if (a < nelem) { /* IBM-OSD-SIM bug, Might not have it */
unsigned len = get_attrs[a].len;
char sid_dump[32*4 + 2]; /* 2nibbles+space+ASCII */
hex_dump_to_buffer(get_attrs[a].val_ptr, len, 32, 1,
sid_dump, sizeof(sid_dump), true);
OSD_INFO("OSD_SYSTEM_ID(%d)\n"
" [%s]\n", len, sid_dump);
a++;
}
out:
osd_end_request(or);
return ret;
}