emi26.c revision b412284b969845615e860001b2f34614ece1d576
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> 19ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse#include <linux/firmware.h> 20ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse#include <linux/ihex.h> 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EMI26_VENDOR_ID 0x086a /* Emagic Soft-und Hardware GmBH */ 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EMI26_PRODUCT_ID 0x0100 /* EMI 2|6 without firmware */ 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EMI26B_PRODUCT_ID 0x0102 /* EMI 2|6 without firmware */ 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ANCHOR_LOAD_INTERNAL 0xA0 /* Vendor specific request code for Anchor Upload/Download (This one is implemented in the core) */ 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ANCHOR_LOAD_EXTERNAL 0xA3 /* This command is not implemented in the core. Requires firmware */ 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ANCHOR_LOAD_FPGA 0xA5 /* This command is not implemented in the core. Requires firmware. Emagic extension */ 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAX_INTERNAL_ADDRESS 0x1B3F /* This is the highest internal RAM address for the AN2131Q */ 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CPUCS_REG 0x7F92 /* EZ-USB Control and Status Register. Bit 0 controls 8051 reset */ 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INTERNAL_RAM(address) (address <= MAX_INTERNAL_ADDRESS) 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 33ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhousestatic int emi26_writememory( struct usb_device *dev, int address, 34ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse const unsigned char *data, int length, 35ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse __u8 bRequest); 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int emi26_set_reset(struct usb_device *dev, unsigned char reset_bit); 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int emi26_load_firmware (struct usb_device *dev); 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int emi26_probe(struct usb_interface *intf, const struct usb_device_id *id); 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void emi26_disconnect(struct usb_interface *intf); 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* thanks to drivers/usb/serial/keyspan_pda.c code */ 42ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhousestatic int emi26_writememory (struct usb_device *dev, int address, 43ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse const unsigned char *data, int length, 44ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse __u8 request) 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int result; 475d7efe5b3768bf53df9b87380ea68baacf11f933Eric Sesterhenn unsigned char *buffer = kmemdup(data, length, GFP_KERNEL); 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!buffer) { 50fd3f1917e345d852ef9ae36178719f4e639f70aeGreg Kroah-Hartman dev_err(&dev->dev, "kmalloc(%d) failed.\n", length); 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Note: usb_control_msg returns negative value on error or length of the 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * data that was written! */ 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds result = usb_control_msg (dev, usb_sndctrlpipe(dev, 0), request, 0x40, address, 0, buffer, length, 300); 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree (buffer); 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return result; 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* thanks to drivers/usb/serial/keyspan_pda.c code */ 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int emi26_set_reset (struct usb_device *dev, unsigned char reset_bit) 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int response; 641b29a375fb0b79a11a2d18e7bf5f6da422a35025Greg Kroah-Hartman dev_info(&dev->dev, "%s - %d\n", __func__, reset_bit); 65441b62c1edb986827154768d89bbac0ba779984fHarvey Harrison /* printk(KERN_DEBUG "%s - %d", __func__, reset_bit); */ 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds response = emi26_writememory (dev, CPUCS_REG, &reset_bit, 1, 0xa0); 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (response < 0) { 68fd3f1917e345d852ef9ae36178719f4e639f70aeGreg Kroah-Hartman dev_err(&dev->dev, "set_reset (%d) failed\n", reset_bit); 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return response; 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FW_LOAD_SIZE 1023 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int emi26_load_firmware (struct usb_device *dev) 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 77ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse const struct firmware *loader_fw = NULL; 78ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse const struct firmware *bitstream_fw = NULL; 79ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse const struct firmware *firmware_fw = NULL; 80ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse const struct ihex_binrec *rec; 81b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman int err = -ENOMEM; 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 addr; /* Address to write */ 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u8 *buf; 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf = kmalloc(FW_LOAD_SIZE, GFP_KERNEL); 87b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman if (!buf) 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 90ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse err = request_ihex_firmware(&loader_fw, "emi26/loader.fw", &dev->dev); 91ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse if (err) 92ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse goto nofw; 93ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse 94ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse err = request_ihex_firmware(&bitstream_fw, "emi26/bitstream.fw", 95ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse &dev->dev); 96ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse if (err) 97ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse goto nofw; 98ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse 99ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse err = request_ihex_firmware(&firmware_fw, "emi26/firmware.fw", 100ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse &dev->dev); 101ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse if (err) { 102ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse nofw: 103fd3f1917e345d852ef9ae36178719f4e639f70aeGreg Kroah-Hartman dev_err(&dev->dev, "%s - request_firmware() failed\n", 104fd3f1917e345d852ef9ae36178719f4e639f70aeGreg Kroah-Hartman __func__); 105ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse goto wraperr; 106ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse } 107ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Assert reset (stop the CPU in the EMI) */ 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_set_reset(dev,1); 110b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman if (err < 0) 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 113ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse rec = (const struct ihex_binrec *)loader_fw->data; 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1. We need to put the loader for the FPGA into the EZ-USB */ 115ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse while (rec) { 116ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse err = emi26_writememory(dev, be32_to_cpu(rec->addr), 117ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse rec->data, be16_to_cpu(rec->len), 118ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse ANCHOR_LOAD_INTERNAL); 119b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman if (err < 0) 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 121ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse rec = ihex_next_binrec(rec); 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* De-assert reset (let the CPU run) */ 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_set_reset(dev,0); 126b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman if (err < 0) 127cf4cf0bb89cbff95c5be8f8d3c68e55f38f94ba7Oliver Neukum goto wraperr; 12816c23f7d88cbcce491f9370b2846fad66e8ef319Monty msleep(250); /* let device settle */ 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 2. We upload the FPGA firmware into the EMI 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: collect up to 1023 (yes!) bytes and send them with 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a single request. This is _much_ faster! */ 133ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse rec = (const struct ihex_binrec *)bitstream_fw->data; 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = 0; 136ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse addr = be32_to_cpu(rec->addr); 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* intel hex records are terminated with type 0 element */ 139ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse while (rec && (i + be16_to_cpu(rec->len) < FW_LOAD_SIZE)) { 140ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse memcpy(buf + i, rec->data, be16_to_cpu(rec->len)); 141ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse i += be16_to_cpu(rec->len); 142ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse rec = ihex_next_binrec(rec); 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_writememory(dev, addr, buf, i, ANCHOR_LOAD_FPGA); 145b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman if (err < 0) 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 147327d74f6b65ddc8a042c43c11fdd4be0bb354668Marcin Slusarz } while (rec); 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Assert reset (stop the CPU in the EMI) */ 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_set_reset(dev,1); 151b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman if (err < 0) 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3. We need to put the loader for the firmware into the EZ-USB (again...) */ 155ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse for (rec = (const struct ihex_binrec *)loader_fw->data; 156ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse rec; rec = ihex_next_binrec(rec)) { 157ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse err = emi26_writememory(dev, be32_to_cpu(rec->addr), 158ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse rec->data, be16_to_cpu(rec->len), 159ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse ANCHOR_LOAD_INTERNAL); 160b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman if (err < 0) 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16316c23f7d88cbcce491f9370b2846fad66e8ef319Monty msleep(250); /* let device settle */ 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* De-assert reset (let the CPU run) */ 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_set_reset(dev,0); 167b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman if (err < 0) 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4. We put the part of the firmware that lies in the external RAM into the EZ-USB */ 171ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse 172ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse for (rec = (const struct ihex_binrec *)firmware_fw->data; 173ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse rec; rec = ihex_next_binrec(rec)) { 174ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse if (!INTERNAL_RAM(be32_to_cpu(rec->addr))) { 175ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse err = emi26_writememory(dev, be32_to_cpu(rec->addr), 176ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse rec->data, be16_to_cpu(rec->len), 177ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse ANCHOR_LOAD_EXTERNAL); 178b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman if (err < 0) 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 182b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Assert reset (stop the CPU in the EMI) */ 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_set_reset(dev,1); 185b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman if (err < 0) 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 188ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse for (rec = (const struct ihex_binrec *)firmware_fw->data; 189ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse rec; rec = ihex_next_binrec(rec)) { 190ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse if (INTERNAL_RAM(be32_to_cpu(rec->addr))) { 191ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse err = emi26_writememory(dev, be32_to_cpu(rec->addr), 192ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse rec->data, be16_to_cpu(rec->len), 193ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse ANCHOR_LOAD_INTERNAL); 194b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman if (err < 0) 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* De-assert reset (let the CPU run) */ 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = emi26_set_reset(dev,0); 201b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman if (err < 0) 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto wraperr; 20316c23f7d88cbcce491f9370b2846fad66e8ef319Monty msleep(250); /* let device settle */ 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* return 1 to fail the driver inialization 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and give real driver change to load */ 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = 1; 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldswraperr: 210b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman if (err < 0) 211b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman dev_err(&dev->dev,"%s - error loading firmware: error = %d\n", 212b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman __func__, err); 213b412284b969845615e860001b2f34614ece1d576Greg Kroah-Hartman 214ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse release_firmware(loader_fw); 215ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse release_firmware(bitstream_fw); 216ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse release_firmware(firmware_fw); 217ae93a55bf948753de0bb8e43fa9c027f786abb05David Woodhouse 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(buf); 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22233b9e16243fd69493be3ddda7be73226c8be586aNémeth Mártonstatic const struct usb_device_id id_table[] = { 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(EMI26_VENDOR_ID, EMI26_PRODUCT_ID) }, 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_DEVICE(EMI26_VENDOR_ID, EMI26B_PRODUCT_ID) }, 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { } /* Terminating entry */ 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DEVICE_TABLE (usb, id_table); 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int emi26_probe(struct usb_interface *intf, const struct usb_device_id *id) 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct usb_device *dev = interface_to_usbdev(intf); 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2341b29a375fb0b79a11a2d18e7bf5f6da422a35025Greg Kroah-Hartman dev_info(&intf->dev, "%s start\n", __func__); 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds emi26_load_firmware(dev); 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* do not return the driver context, let real audio driver do that */ 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EIO; 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void emi26_disconnect(struct usb_interface *intf) 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct usb_driver emi26_driver = { 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "emi26 - firmware loader", 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .probe = emi26_probe, 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .disconnect = emi26_disconnect, 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .id_table = id_table, 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25365db43054065790a75291b0834657445fea2cf56Greg Kroah-Hartmanmodule_usb_driver(emi26_driver); 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25596de0e252cedffad61b3cb5e05662c591898e69aJan EngelhardtMODULE_AUTHOR("Tapio Laxström"); 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("Emagic EMI 2|6 firmware loader."); 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 259ae93a55bf948753de0bb8e43fa9c027f786abb05David WoodhouseMODULE_FIRMWARE("emi26/loader.fw"); 260ae93a55bf948753de0bb8e43fa9c027f786abb05David WoodhouseMODULE_FIRMWARE("emi26/bitstream.fw"); 261ae93a55bf948753de0bb8e43fa9c027f786abb05David WoodhouseMODULE_FIRMWARE("emi26/firmware.fw"); 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* vi:ai:syntax=c:sw=8:ts=8:tw=80 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 264