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yaml --- r: 179479 b: refs/heads/master c: d8b14f8 h: refs/heads/master i: 179477: 37ea583 179475: 67cc1ea 179471: 3116134 v: v3
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Manu Abraham
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Mauro Carvalho Chehab
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Jan 17, 2010
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +1,2 @@ | ||
| --- | ||
| refs/heads/master: 12855cac87218d0c92ffdebb7270cec040cf5a6a | ||
| refs/heads/master: d8b14f8a76d71c84622a211f57baf15f61cc9703 |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,139 @@ | ||
| /* | ||
| Mantis PCI bridge driver | ||
| Copyright (C) 2005, 2006 Manu Abraham (abraham.manu@gmail.com) | ||
| This program is free software; you can redistribute it and/or modify | ||
| it under the terms of the GNU General Public License as published by | ||
| the Free Software Foundation; either version 2 of the License, or | ||
| (at your option) any later version. | ||
| This program is distributed in the hope that it will be useful, | ||
| but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| GNU General Public License for more details. | ||
| You should have received a copy of the GNU General Public License | ||
| along with this program; if not, write to the Free Software | ||
| Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| */ | ||
|
|
||
| #include "mantis_common.h" | ||
| #include "mantis_hif.h" | ||
| #include "mantis_link.h" /* temporary due to physical layer stuff */ | ||
|
|
||
| static int mantis_hif_data_available(struct mantis_ca *ca) | ||
| { | ||
| struct mantis_pci *mantis = ca->ca_priv; | ||
| int rc = 0; | ||
|
|
||
| if (wait_event_interruptible_timeout(ca->hif_data_wq, | ||
| ca->sbuf_status & MANTIS_SBUF_DATA_AVAIL, | ||
| msecs_to_jiffies(500)) == -ERESTARTSYS) { | ||
|
|
||
| dprintk(verbose, MANTIS_ERROR, 1, "Adapter(%d) Slot(0): HIF Read wait event timeout !", mantis->num); | ||
| rc = -EREMOTEIO; | ||
| } | ||
| ca->sbuf_status &= ~MANTIS_SBUF_DATA_AVAIL; | ||
| udelay(2); | ||
| return rc; | ||
| } | ||
|
|
||
| static int mantis_hif_sbuf_opdone_wait(struct mantis_ca *ca) | ||
| { | ||
| struct mantis_pci *mantis = ca->ca_priv; | ||
| int rc = 0; | ||
|
|
||
| if (wait_event_interruptible_timeout(ca->hif_opdone_wq, | ||
| ca->hif_event & MANTIS_SBUF_OPDONE, | ||
| msecs_to_jiffies(500)) == -ERESTARTSYS) { | ||
|
|
||
| dprintk(verbose, MANTIS_ERROR, 1, "Adapter(%d) Slot(0): Smart buffer operation timeout !", mantis->num); | ||
| rc = -EREMOTEIO; | ||
| } | ||
| ca->hif_event &= ~MANTIS_SBUF_OPDONE; | ||
| udelay(5); | ||
| return rc; | ||
| } | ||
|
|
||
| int mantis_hif_read_mem(struct mantis_ca *ca, u32 addr) | ||
| { | ||
| struct mantis_pci *mantis = ca->ca_priv; | ||
| u32 hif_addr = 0, data, count = 4; | ||
|
|
||
| hif_addr |= MANTIS_GPIF_HIFRDWRN; | ||
| hif_addr &= ~MANTIS_GPIF_PCMCIAREG; | ||
| hif_addr &= ~MANTIS_GPIF_PCMCIAIOM; | ||
| hif_addr |= addr; | ||
|
|
||
| mmwrite(hif_addr, MANTIS_GPIF_BRADDR); | ||
| mmwrite(count, MANTIS_GPIF_BRBYTES); | ||
|
|
||
| udelay(20); | ||
|
|
||
| mmwrite(hif_addr, MANTIS_GPIF_HIFADDR); | ||
| if (mantis_hif_data_available(ca) != 0) { | ||
| dprintk(verbose, MANTIS_ERROR, 1, "Adapter(%d) Slot(0): GPIF Smart Buffer burst read failed", mantis->num); | ||
| return -EREMOTEIO; | ||
| } | ||
| if (mantis_hif_sbuf_opdone_wait(ca) != 0) { | ||
| dprintk(verbose, MANTIS_ERROR, 1, "Adapter(%d) Slot(0): GPIF Smart Buffer operation failed", mantis->num); | ||
| return -EREMOTEIO; | ||
| } | ||
| data = mmread(MANTIS_GPIF_HIFDIN); | ||
|
|
||
| return (data >> 24) & 0xff; | ||
| } | ||
|
|
||
| int mantis_hif_write_mem(struct mantis_ca *ca, u32 addr, u8 data) | ||
| { | ||
| struct mantis_slot *slot = ca->slot; | ||
| struct mantis_pci *mantis = ca->ca_priv; | ||
| u32 hif_addr = 0; | ||
|
|
||
| hif_addr &= ~MANTIS_GPIF_HIFRDWRN; | ||
| hif_addr &= ~MANTIS_GPIF_PCMCIAREG; | ||
| hif_addr &= ~MANTIS_GPIF_PCMCIAIOM; | ||
| hif_addr |= addr; | ||
|
|
||
| mmwrite(slot->slave_cfg, MANTIS_GPIF_CFGSLA); /* Slot0 alone for now */ | ||
|
|
||
| mmwrite(hif_addr, MANTIS_GPIF_HIFADDR); | ||
| mmwrite(data, MANTIS_GPIF_HIFDOUT); | ||
| ca->hif_job_queue = MANTIS_HIF_MEMWR; | ||
|
|
||
| if (mantis_hif_sbuf_opdone_wait(ca) != 0) { | ||
| ca->hif_job_queue &= ~MANTIS_HIF_MEMWR; | ||
| dprintk(verbose, MANTIS_ERROR, 1, "Adapter(%d) Slot(0): HIF Smart Buffer operation failed", mantis->num); | ||
| return -EREMOTEIO; | ||
| } | ||
| ca->hif_job_queue &= ~MANTIS_HIF_MEMWR; | ||
| return 0; | ||
| } | ||
|
|
||
| int mantis_hif_init(struct mantis_ca *ca) | ||
| { | ||
| struct mantis_pci *mantis = ca->ca_priv; | ||
| u32 irqcfg; | ||
|
|
||
| dprintk(verbose, MANTIS_ERROR, 1, "Adapter(%d) Initializing Mantis Host Interface", mantis->num); | ||
| init_waitqueue_head(&ca->hif_data_wq); | ||
| init_waitqueue_head(&ca->hif_opdone_wq); | ||
|
|
||
| irqcfg = mmread(MANTIS_GPIF_IRQCFG); | ||
| irqcfg |= MANTIS_MASK_BRRDY; | ||
| mmwrite(irqcfg, MANTIS_GPIF_IRQCFG); | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| void mantis_hif_exit(struct mantis_ca *ca) | ||
| { | ||
| struct mantis_pci *mantis = ca->ca_priv; | ||
| u32 irqcfg; | ||
|
|
||
| dprintk(verbose, MANTIS_ERROR, 1, "Adapter(%d) Exiting Mantis Host Interface", mantis->num); | ||
| irqcfg = mmread(MANTIS_GPIF_IRQCFG); | ||
| irqcfg &= ~MANTIS_MASK_BRRDY; | ||
| mmwrite(irqcfg, MANTIS_GPIF_IRQCFG); | ||
| } |
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