emi26.c revision cf4cf0bb89cbff95c5be8f8d3c68e55f38f94ba7
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Emagic EMI 2|6 usb audio interface firmware loader. 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2002 496de0e252cedffad61b3cb5e05662c591898e69aJan Engelhardt * Tapio Laxström (tapio.laxstrom@iptime.fi) 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License, as published by 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation, version 2. 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * emi26.c,v 1.13 2002/03/08 13:10:26 tapio Exp 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/usb.h> 1816c23f7d88cbcce491f9370b2846fad66e8ef319Monty#include <linux/delay.h> 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAX_INTEL_HEX_RECORD_LENGTH 16 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef struct _INTEL_HEX_RECORD 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 length; 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 address; 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 type; 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u8 data[MAX_INTEL_HEX_RECORD_LENGTH]; 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} INTEL_HEX_RECORD, *PINTEL_HEX_RECORD; 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* include firmware (variables) */ 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "emi26_fw.h" 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EMI26_VENDOR_ID 0x086a /* Emagic Soft-und Hardware GmBH */ 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EMI26_PRODUCT_ID 0x0100 /* EMI 2|6 without firmware */ 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EMI26B_PRODUCT_ID 0x0102 /* EMI 2|6 without firmware */ 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ANCHOR_LOAD_INTERNAL 0xA0 /* Vendor specific request code for Anchor Upload/Download (This one is implemented in the core) */ 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ANCHOR_LOAD_EXTERNAL 0xA3 /* This command is not implemented in the core. Requires firmware */ 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ANCHOR_LOAD_FPGA 0xA5 /* This command is not implemented in the core. Requires firmware. Emagic extension */ 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAX_INTERNAL_ADDRESS 0x1B3F /* This is the highest internal RAM address for the AN2131Q */ 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CPUCS_REG 0x7F92 /* EZ-USB Control and Status Register. Bit 0 controls 8051 reset */ 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INTERNAL_RAM(address) (address <= MAX_INTERNAL_ADDRESS) 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int emi26_writememory( struct usb_device *dev, int address, unsigned char *data, int length, __u8 bRequest); 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int emi26_set_reset(struct usb_device *dev, unsigned char reset_bit); 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int emi26_load_firmware (struct usb_device *dev); 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int emi26_probe(struct usb_interface *intf, const struct usb_device_id *id); 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void emi26_disconnect(struct usb_interface *intf); 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init emi26_init (void); 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit emi26_exit (void); 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* thanks to drivers/usb/serial/keyspan_pda.c code */ 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int emi26_writememory (struct usb_device *dev, int address, unsigned char *data, int length, __u8 request) 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int result; 565d7efe5b3768bf53df9b87380ea68baacf11f933Eric Sesterhenn unsigned char *buffer = kmemdup(data, length, GFP_KERNEL); 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!buffer) { 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err("emi26: kmalloc(%d) failed.", length); 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Note: usb_control_msg returns negative value on error or length of the 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * data that was written! */ 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds result = usb_control_msg (dev, usb_sndctrlpipe(dev, 0), request, 0x40, address, 0, buffer, length, 300); 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree (buffer); 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return result; 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* thanks to drivers/usb/serial/keyspan_pda.c code */ 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int emi26_set_reset (struct usb_device *dev, unsigned char reset_bit) 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int response; 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info("%s - %d", __FUNCTION__, reset_bit); 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* printk(KERN_DEBUG "%s - %d", __FUNCTION__, reset_bit); */ 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds response = emi26_writememory (dev, CPUCS_REG, &reset_bit, 1, 0xa0); 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (response < 0) { 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err("emi26: set_reset (%d) failed", reset_bit); 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return response; 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FW_LOAD_SIZE 1023 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int emi26_load_firmware (struct usb_device *dev) 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pos = 0; /* Position in hex record */ 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 addr; /* Address to write */ 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u8 *buf; 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf = kmalloc(FW_LOAD_SIZE, GFP_KERNEL); 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!buf) { 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err( "%s - error loading firmware: error = %d", __FUNCTION__, -ENOMEM); 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = -ENOMEM; 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Assert reset (stop the CPU in the EMI) */ 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_set_reset(dev,1); 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err( "%s - error loading firmware: error = %d", __FUNCTION__, err); 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1. We need to put the loader for the FPGA into the EZ-USB */ 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; g_Loader[i].type == 0; i++) { 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_writememory(dev, g_Loader[i].address, g_Loader[i].data, g_Loader[i].length, ANCHOR_LOAD_INTERNAL); 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err("%s - error loading firmware: error = %d", __FUNCTION__, err); 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* De-assert reset (let the CPU run) */ 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_set_reset(dev,0); 117cf4cf0bb89cbff95c5be8f8d3c68e55f38f94ba7Oliver Neukum if (err < 0) { 118cf4cf0bb89cbff95c5be8f8d3c68e55f38f94ba7Oliver Neukum err("%s - error loading firmware: error = %d", __FUNCTION__, err); 119cf4cf0bb89cbff95c5be8f8d3c68e55f38f94ba7Oliver Neukum goto wraperr; 120cf4cf0bb89cbff95c5be8f8d3c68e55f38f94ba7Oliver Neukum } 12116c23f7d88cbcce491f9370b2846fad66e8ef319Monty msleep(250); /* let device settle */ 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 2. We upload the FPGA firmware into the EMI 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: collect up to 1023 (yes!) bytes and send them with 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a single request. This is _much_ faster! */ 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = 0; 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = g_bitstream[pos].address; 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* intel hex records are terminated with type 0 element */ 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((g_bitstream[pos].type == 0) && (i + g_bitstream[pos].length < FW_LOAD_SIZE)) { 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(buf + i, g_bitstream[pos].data, g_bitstream[pos].length); 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i += g_bitstream[pos].length; 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pos++; 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_writememory(dev, addr, buf, i, ANCHOR_LOAD_FPGA); 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err("%s - error loading firmware: error = %d", __FUNCTION__, err); 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (i > 0); 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Assert reset (stop the CPU in the EMI) */ 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_set_reset(dev,1); 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err("%s - error loading firmware: error = %d", __FUNCTION__, err); 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3. We need to put the loader for the firmware into the EZ-USB (again...) */ 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; g_Loader[i].type == 0; i++) { 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_writememory(dev, g_Loader[i].address, g_Loader[i].data, g_Loader[i].length, ANCHOR_LOAD_INTERNAL); 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err("%s - error loading firmware: error = %d", __FUNCTION__, err); 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15816c23f7d88cbcce491f9370b2846fad66e8ef319Monty msleep(250); /* let device settle */ 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* De-assert reset (let the CPU run) */ 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_set_reset(dev,0); 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err("%s - error loading firmware: error = %d", __FUNCTION__, err); 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4. We put the part of the firmware that lies in the external RAM into the EZ-USB */ 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; g_Firmware[i].type == 0; i++) { 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!INTERNAL_RAM(g_Firmware[i].address)) { 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_writememory(dev, g_Firmware[i].address, g_Firmware[i].data, g_Firmware[i].length, ANCHOR_LOAD_EXTERNAL); 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err("%s - error loading firmware: error = %d", __FUNCTION__, err); 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Assert reset (stop the CPU in the EMI) */ 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_set_reset(dev,1); 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err("%s - error loading firmware: error = %d", __FUNCTION__, err); 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i=0; g_Firmware[i].type == 0; i++) { 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (INTERNAL_RAM(g_Firmware[i].address)) { 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_writememory(dev, g_Firmware[i].address, g_Firmware[i].data, g_Firmware[i].length, ANCHOR_LOAD_INTERNAL); 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err("%s - error loading firmware: error = %d", __FUNCTION__, err); 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* De-assert reset (let the CPU run) */ 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_set_reset(dev,0); 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err("%s - error loading firmware: error = %d", __FUNCTION__, err); 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20116c23f7d88cbcce491f9370b2846fad66e8ef319Monty msleep(250); /* let device settle */ 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* return 1 to fail the driver inialization 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and give real driver change to load */ 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = 1; 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldswraperr: 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(buf); 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct usb_device_id id_table [] = { 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(EMI26_VENDOR_ID, EMI26_PRODUCT_ID) }, 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(EMI26_VENDOR_ID, EMI26B_PRODUCT_ID) }, 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { } /* Terminating entry */ 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DEVICE_TABLE (usb, id_table); 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int emi26_probe(struct usb_interface *intf, const struct usb_device_id *id) 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct usb_device *dev = interface_to_usbdev(intf); 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info("%s start", __FUNCTION__); 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds emi26_load_firmware(dev); 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* do not return the driver context, let real audio driver do that */ 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EIO; 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void emi26_disconnect(struct usb_interface *intf) 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct usb_driver emi26_driver = { 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "emi26 - firmware loader", 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .probe = emi26_probe, 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .disconnect = emi26_disconnect, 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .id_table = id_table, 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init emi26_init (void) 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return usb_register(&emi26_driver); 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit emi26_exit (void) 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds usb_deregister (&emi26_driver); 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(emi26_init); 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(emi26_exit); 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25696de0e252cedffad61b3cb5e05662c591898e69aJan EngelhardtMODULE_AUTHOR("Tapio Laxström"); 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("Emagic EMI 2|6 firmware loader."); 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* vi:ai:syntax=c:sw=8:ts=8:tw=80 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 262