X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/00549f6de02bdb40a6470fe998edcbd3e048357e..b06573b702b0adb42ce4c798f2915a280c17eeed:/target/linux/adm5120/files/drivers/usb/host/adm5120-hub.c?ds=sidebyside diff --git a/target/linux/adm5120/files/drivers/usb/host/adm5120-hub.c b/target/linux/adm5120/files/drivers/usb/host/adm5120-hub.c index f8bda82e0..6ba62050b 100644 --- a/target/linux/adm5120/files/drivers/usb/host/adm5120-hub.c +++ b/target/linux/adm5120/files/drivers/usb/host/adm5120-hub.c @@ -1,16 +1,22 @@ /* - * OHCI HCD (Host Controller Driver) for USB. + * ADM5120 HCD (Host Controller Driver) for USB * - * (C) Copyright 1999 Roman Weissgaerber - * (C) Copyright 2000-2004 David Brownell + * Copyright (C) 2007-2008 Gabor Juhos + * + * This file was derived from: drivers/usb/host/ohci-hub.c + * (C) Copyright 1999 Roman Weissgaerber + * (C) Copyright 2000-2004 David Brownell + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. * - * This file is licenced under GPL */ /*-------------------------------------------------------------------------*/ /* - * OHCI Root Hub ... the nonsharable stuff + * ADM5120 Root Hub ... the nonsharable stuff */ #define dbg_port(hc,label,num,value) \ @@ -261,58 +267,16 @@ static void start_hnp(struct admhcd *ahcd); static inline int admhc_port_reset(struct admhcd *ahcd, unsigned port) { u32 t; - int c; admhc_vdbg(ahcd, "reset port%d\n", port); - t = admhc_read_portstatus(ahcd, port); if (!(t & ADMHC_PS_CCS)) return -ENODEV; - if ((t & ADMHC_PS_PRS)) - return 0; - - admhc_write_portstatus(ahcd, port, ADMHC_PS_PRS); - c = 0; - do { - t = admhc_read_portstatus(ahcd, port); - if (t & ADMHC_PS_PRSC) - break; - - if (++c > 20) { - admhc_err(ahcd, "port%d reset timed out\n",port); - return -EPIPE; - } - - mdelay(PORT_RESET_HW_MSEC); - } while (1); - admhc_vdbg(ahcd, "port%d reset completed within %dms\n", port, - c * PORT_RESET_HW_MSEC); - - t = admhc_read_portstatus(ahcd, port); - if (!(t & ADMHC_PS_CCS)) { - admhc_err(ahcd, "port%d is not connected after reset\n",port); - return -ENODEV; - } - - admhc_write_portstatus(ahcd, port, ADMHC_PS_SPE); - c = 0; - do { - t = admhc_read_portstatus(ahcd, port); - if (t & ADMHC_PS_PESC) - break; - - if (++c > 20) { - admhc_err(ahcd, "port%d enable timed out\n",port); - return -EPIPE; - } - - mdelay(PORT_RESET_HW_MSEC); - } while (1); - admhc_vdbg(ahcd, "port%d enable completed within %dms\n", port, - c * PORT_RESET_HW_MSEC); - - admhc_write_portstatus(ahcd, port, ADMHC_PS_CSC); + admhc_write_portstatus(ahcd, port, ADMHC_PS_SPR); + mdelay(10); + admhc_write_portstatus(ahcd, port, (ADMHC_PS_SPE | ADMHC_PS_CSC)); + mdelay(100); return 0; } @@ -340,7 +304,7 @@ static inline int admhc_port_disable(struct admhcd *ahcd, unsigned port) if (!(t & ADMHC_PS_CCS)) return -ENODEV; - admhc_write_portstatus(ahcd, ADMHC_PS_CPE, port); + admhc_write_portstatus(ahcd, port, ADMHC_PS_CPE); return 0; } @@ -348,7 +312,9 @@ static inline int admhc_port_disable(struct admhcd *ahcd, unsigned port) static inline int admhc_port_write(struct admhcd *ahcd, unsigned port, u32 val) { +#ifdef ADMHC_VERBOSE_DEBUG dbg_port_write(ahcd, "write", port, val); +#endif admhc_write_portstatus(ahcd, port, val); return 0;