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Diffstat (limited to 'sound/usb/6fire/firmware.c')
-rw-r--r--sound/usb/6fire/firmware.c169
1 files changed, 82 insertions, 87 deletions
diff --git a/sound/usb/6fire/firmware.c b/sound/usb/6fire/firmware.c
index 9081a54a9c6..3b02e54b8f6 100644
--- a/sound/usb/6fire/firmware.c
+++ b/sound/usb/6fire/firmware.c
@@ -3,15 +3,8 @@
*
* Firmware loader
*
- * Currently not working for all devices. To be able to use the device
- * in linux, it is also possible to let the windows driver upload the firmware.
- * For that, start the computer in windows and reboot.
- * As long as the device is connected to the power supply, no firmware reload
- * needs to be performed.
- *
* Author: Torsten Schenk <torsten.schenk@zoho.com>
* Created: Jan 01, 2011
- * Version: 0.3.0
* Copyright: (C) Torsten Schenk
*
* This program is free software; you can redistribute it and/or modify
@@ -21,6 +14,9 @@
*/
#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/bitrev.h>
+#include <linux/kernel.h>
#include "firmware.h"
#include "chip.h"
@@ -33,32 +29,6 @@ enum {
FPGA_BUFSIZE = 512, FPGA_EP = 2
};
-static const u8 BIT_REVERSE_TABLE[256] = {
- 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50,
- 0xd0, 0x30, 0xb0, 0x70, 0xf0, 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8,
- 0x68, 0xe8, 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, 0x04,
- 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, 0x14, 0x94, 0x54, 0xd4,
- 0x34, 0xb4, 0x74, 0xf4, 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c,
- 0xec, 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, 0x02, 0x82,
- 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, 0x12, 0x92, 0x52, 0xd2, 0x32,
- 0xb2, 0x72, 0xf2, 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
- 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, 0x06, 0x86, 0x46,
- 0xc6, 0x26, 0xa6, 0x66, 0xe6, 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6,
- 0x76, 0xf6, 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, 0x1e,
- 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, 0x01, 0x81, 0x41, 0xc1,
- 0x21, 0xa1, 0x61, 0xe1, 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71,
- 0xf1, 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 0x19, 0x99,
- 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, 0x05, 0x85, 0x45, 0xc5, 0x25,
- 0xa5, 0x65, 0xe5, 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
- 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, 0x1d, 0x9d, 0x5d,
- 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3,
- 0x63, 0xe3, 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, 0x0b,
- 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, 0x1b, 0x9b, 0x5b, 0xdb,
- 0x3b, 0xbb, 0x7b, 0xfb, 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67,
- 0xe7, 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, 0x0f, 0x8f,
- 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 0x1f, 0x9f, 0x5f, 0xdf, 0x3f,
- 0xbf, 0x7f, 0xff };
-
/*
* wMaxPacketSize of pcm endpoints.
* keep synced with rates_in_packet_size and rates_out_packet_size in pcm.c
@@ -72,11 +42,15 @@ static const u8 ep_w_max_packet_size[] = {
0x94, 0x01, 0x5c, 0x02 /* alt 3: 404 EP2 and 604 EP6 (25 fpp) */
};
+static const u8 known_fw_versions[][2] = {
+ { 0x03, 0x01 }
+};
+
struct ihex_record {
u16 address;
u8 len;
u8 data[256];
- char error; /* true if an error occured parsing this record */
+ char error; /* true if an error occurred parsing this record */
u8 max_len; /* maximum record length in whole ihex */
@@ -86,28 +60,26 @@ struct ihex_record {
unsigned int txt_offset; /* current position in txt_data */
};
-static u8 usb6fire_fw_ihex_nibble(const u8 n)
-{
- if (n >= '0' && n <= '9')
- return n - '0';
- else if (n >= 'A' && n <= 'F')
- return n - ('A' - 10);
- else if (n >= 'a' && n <= 'f')
- return n - ('a' - 10);
- return 0;
-}
-
static u8 usb6fire_fw_ihex_hex(const u8 *data, u8 *crc)
{
- u8 val = (usb6fire_fw_ihex_nibble(data[0]) << 4) |
- usb6fire_fw_ihex_nibble(data[1]);
+ u8 val = 0;
+ int hval;
+
+ hval = hex_to_bin(data[0]);
+ if (hval >= 0)
+ val |= (hval << 4);
+
+ hval = hex_to_bin(data[1]);
+ if (hval >= 0)
+ val |= hval;
+
*crc += val;
return val;
}
/*
* returns true if record is available, false otherwise.
- * iff an error occured, false will be returned and record->error will be true.
+ * iff an error occurred, false will be returned and record->error will be true.
*/
static bool usb6fire_fw_ihex_next_record(struct ihex_record *record)
{
@@ -237,7 +209,7 @@ static int usb6fire_fw_ezusb_upload(
int ret;
u8 data;
struct usb_device *device = interface_to_usbdev(intf);
- const struct firmware *fw = 0;
+ const struct firmware *fw = NULL;
struct ihex_record *rec = kmalloc(sizeof(struct ihex_record),
GFP_KERNEL);
@@ -247,15 +219,16 @@ static int usb6fire_fw_ezusb_upload(
ret = request_firmware(&fw, fwname, &device->dev);
if (ret < 0) {
kfree(rec);
- snd_printk(KERN_ERR PREFIX "error requesting ezusb "
- "firmware %s.\n", fwname);
+ dev_err(&intf->dev,
+ "error requesting ezusb firmware %s.\n", fwname);
return ret;
}
ret = usb6fire_fw_ihex_init(fw, rec);
if (ret < 0) {
kfree(rec);
- snd_printk(KERN_ERR PREFIX "error validating ezusb "
- "firmware %s.\n", fwname);
+ release_firmware(fw);
+ dev_err(&intf->dev,
+ "error validating ezusb firmware %s.\n", fwname);
return ret;
}
/* upload firmware image */
@@ -264,8 +237,9 @@ static int usb6fire_fw_ezusb_upload(
if (ret < 0) {
kfree(rec);
release_firmware(fw);
- snd_printk(KERN_ERR PREFIX "unable to upload ezusb "
- "firmware %s: begin message.\n", fwname);
+ dev_err(&intf->dev,
+ "unable to upload ezusb firmware %s: begin message.\n",
+ fwname);
return ret;
}
@@ -275,8 +249,9 @@ static int usb6fire_fw_ezusb_upload(
if (ret < 0) {
kfree(rec);
release_firmware(fw);
- snd_printk(KERN_ERR PREFIX "unable to upload ezusb "
- "firmware %s: data urb.\n", fwname);
+ dev_err(&intf->dev,
+ "unable to upload ezusb firmware %s: data urb.\n",
+ fwname);
return ret;
}
}
@@ -287,8 +262,9 @@ static int usb6fire_fw_ezusb_upload(
ret = usb6fire_fw_ezusb_write(device, 0xa0, postaddr,
postdata, postlen);
if (ret < 0) {
- snd_printk(KERN_ERR PREFIX "unable to upload ezusb "
- "firmware %s: post urb.\n", fwname);
+ dev_err(&intf->dev,
+ "unable to upload ezusb firmware %s: post urb.\n",
+ fwname);
return ret;
}
}
@@ -296,9 +272,9 @@ static int usb6fire_fw_ezusb_upload(
data = 0x00; /* resume ezusb cpu */
ret = usb6fire_fw_ezusb_write(device, 0xa0, 0xe600, &data, 1);
if (ret < 0) {
- release_firmware(fw);
- snd_printk(KERN_ERR PREFIX "unable to upload ezusb "
- "firmware %s: end message.\n", fwname);
+ dev_err(&intf->dev,
+ "unable to upload ezusb firmware %s: end message.\n",
+ fwname);
return ret;
}
return 0;
@@ -320,7 +296,7 @@ static int usb6fire_fw_fpga_upload(
ret = request_firmware(&fw, fwname, &device->dev);
if (ret < 0) {
- snd_printk(KERN_ERR PREFIX "unable to get fpga firmware %s.\n",
+ dev_err(&intf->dev, "unable to get fpga firmware %s.\n",
fwname);
kfree(buffer);
return -EIO;
@@ -333,21 +309,21 @@ static int usb6fire_fw_fpga_upload(
if (ret < 0) {
kfree(buffer);
release_firmware(fw);
- snd_printk(KERN_ERR PREFIX "unable to upload fpga firmware: "
- "begin urb.\n");
+ dev_err(&intf->dev,
+ "unable to upload fpga firmware: begin urb.\n");
return ret;
}
while (c != end) {
for (i = 0; c != end && i < FPGA_BUFSIZE; i++, c++)
- buffer[i] = BIT_REVERSE_TABLE[(u8) *c];
+ buffer[i] = byte_rev_table[(u8) *c];
ret = usb6fire_fw_fpga_write(device, buffer, i);
if (ret < 0) {
release_firmware(fw);
kfree(buffer);
- snd_printk(KERN_ERR PREFIX "unable to upload fpga "
- "firmware: fw urb.\n");
+ dev_err(&intf->dev,
+ "unable to upload fpga firmware: fw urb.\n");
return ret;
}
}
@@ -356,13 +332,31 @@ static int usb6fire_fw_fpga_upload(
ret = usb6fire_fw_ezusb_write(device, 9, 0, NULL, 0);
if (ret < 0) {
- snd_printk(KERN_ERR PREFIX "unable to upload fpga firmware: "
- "end urb.\n");
+ dev_err(&intf->dev,
+ "unable to upload fpga firmware: end urb.\n");
return ret;
}
return 0;
}
+/* check, if the firmware version the devices has currently loaded
+ * is known by this driver. 'version' needs to have 4 bytes version
+ * info data. */
+static int usb6fire_fw_check(struct usb_interface *intf, const u8 *version)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(known_fw_versions); i++)
+ if (!memcmp(version, known_fw_versions + i, 2))
+ return 0;
+
+ dev_err(&intf->dev, "invalid fimware version in device: %4ph. "
+ "please reconnect to power. if this failure "
+ "still happens, check your firmware installation.",
+ version);
+ return -EINVAL;
+}
+
int usb6fire_fw_init(struct usb_interface *intf)
{
int i;
@@ -374,22 +368,20 @@ int usb6fire_fw_init(struct usb_interface *intf)
ret = usb6fire_fw_ezusb_read(device, 1, 0, buffer, 8);
if (ret < 0) {
- snd_printk(KERN_ERR PREFIX "unable to receive device "
- "firmware state.\n");
+ dev_err(&intf->dev,
+ "unable to receive device firmware state.\n");
return ret;
}
- if (buffer[0] != 0xeb || buffer[1] != 0xaa || buffer[2] != 0x55
- || buffer[4] != 0x03 || buffer[5] != 0x01 || buffer[7]
- != 0x00) {
- snd_printk(KERN_ERR PREFIX "unknown device firmware state "
- "received from device: ");
+ if (buffer[0] != 0xeb || buffer[1] != 0xaa || buffer[2] != 0x55) {
+ dev_err(&intf->dev,
+ "unknown device firmware state received from device:");
for (i = 0; i < 8; i++)
- snd_printk("%02x ", buffer[i]);
- snd_printk("\n");
+ printk(KERN_CONT "%02x ", buffer[i]);
+ printk(KERN_CONT "\n");
return -EIO;
}
/* do we need fpga loader ezusb firmware? */
- if (buffer[3] == 0x01 && buffer[6] == 0x19) {
+ if (buffer[3] == 0x01) {
ret = usb6fire_fw_ezusb_upload(intf,
"6fire/dmx6firel2.ihx", 0, NULL, 0);
if (ret < 0)
@@ -397,7 +389,10 @@ int usb6fire_fw_init(struct usb_interface *intf)
return FW_NOT_READY;
}
/* do we need fpga firmware and application ezusb firmware? */
- else if (buffer[3] == 0x02 && buffer[6] == 0x0b) {
+ else if (buffer[3] == 0x02) {
+ ret = usb6fire_fw_check(intf, buffer + 4);
+ if (ret < 0)
+ return ret;
ret = usb6fire_fw_fpga_upload(intf, "6fire/dmx6firecf.bin");
if (ret < 0)
return ret;
@@ -410,15 +405,15 @@ int usb6fire_fw_init(struct usb_interface *intf)
return FW_NOT_READY;
}
/* all fw loaded? */
- else if (buffer[3] == 0x03 && buffer[6] == 0x0b)
- return 0;
+ else if (buffer[3] == 0x03)
+ return usb6fire_fw_check(intf, buffer + 4);
/* unknown data? */
else {
- snd_printk(KERN_ERR PREFIX "unknown device firmware state "
- "received from device: ");
+ dev_err(&intf->dev,
+ "unknown device firmware state received from device: ");
for (i = 0; i < 8; i++)
- snd_printk("%02x ", buffer[i]);
- snd_printk("\n");
+ printk(KERN_CONT "%02x ", buffer[i]);
+ printk(KERN_CONT "\n");
return -EIO;
}
return 0;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 01:31:40 +0000