From d3e03f4ea81456d52810a03a17dd88f78a080818 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Wed, 7 Apr 2010 14:12:56 +0200 Subject: [PATCH 1/8] pcmcia: use previously assigned IRQ for all card functions Use a previously assigned IRQ for all card functions, not only if CONFIG_PCMCIA_PROBE is set. Reported-by: Alexander Kurz Signed-off-by: Dominik Brodowski --- drivers/pcmcia/pcmcia_resource.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c index caec1dee2a4b..7c3d03bb4f30 100644 --- a/drivers/pcmcia/pcmcia_resource.c +++ b/drivers/pcmcia/pcmcia_resource.c @@ -755,12 +755,12 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) else printk(KERN_WARNING "pcmcia: Driver needs updating to support IRQ sharing.\n"); -#ifdef CONFIG_PCMCIA_PROBE - - if (s->irq.AssignedIRQ != 0) { - /* If the interrupt is already assigned, it must be the same */ + /* If the interrupt is already assigned, it must be the same */ + if (s->irq.AssignedIRQ != 0) irq = s->irq.AssignedIRQ; - } else { + +#ifdef CONFIG_PCMCIA_PROBE + if (!irq) { int try; u32 mask = s->irq_mask; void *data = p_dev; /* something unique to this device */ From 509b0865fbd8ab6c820397706dde980c1c285538 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Thu, 8 Apr 2010 19:23:07 +0200 Subject: [PATCH 2/8] pcmcia: fix io_probe due to parent (PCI) resources Similar to commit 7a96e87d, we need to be aware of any parent PCI device when requesting IO regions, even only for testing ("probing"). Reported-by: Komuro Signed-off-by: Dominik Brodowski --- drivers/pcmcia/rsrc_nonstatic.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c index 559069a80a3b..1178a823fbc6 100644 --- a/drivers/pcmcia/rsrc_nonstatic.c +++ b/drivers/pcmcia/rsrc_nonstatic.c @@ -214,7 +214,7 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned int base, return; } for (i = base, most = 0; i < base+num; i += 8) { - res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA ioprobe"); + res = claim_region(s, i, 8, IORESOURCE_IO, "PCMCIA ioprobe"); if (!res) continue; hole = inb(i); @@ -231,9 +231,14 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned int base, bad = any = 0; for (i = base; i < base+num; i += 8) { - res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA ioprobe"); - if (!res) + res = claim_region(s, i, 8, IORESOURCE_IO, "PCMCIA ioprobe"); + if (!res) { + if (!any) + printk(" excluding"); + if (!bad) + bad = any = i; continue; + } for (j = 0; j < 8; j++) if (inb(i+j) != most) break; @@ -253,6 +258,7 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned int base, } if (bad) { if ((num > 16) && (bad == base) && (i == base+num)) { + sub_interval(&s_data->io_db, bad, i-bad); printk(" nothing: probe failed.\n"); return; } else { From b1095afe6fd6ea4c0d9e75489b955f898d6617d9 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Thu, 8 Apr 2010 20:10:21 +0200 Subject: [PATCH 3/8] pcmcia: re-start on MFC override If there are changes to the number of socket devices, we need to start over in all cases: else pcmcia_request_configuration() might get confused. Reported-by: Alexander Kurz Signed-off-by: Dominik Brodowski --- drivers/pcmcia/ds.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index cb6036d89e59..4014cf8e4a26 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -687,12 +687,10 @@ static void pcmcia_requery(struct pcmcia_socket *s) new_funcs = mfc.nfn; else new_funcs = 1; - if (old_funcs > new_funcs) { + if (old_funcs != new_funcs) { + /* we need to re-start */ pcmcia_card_remove(s, NULL); pcmcia_card_add(s); - } else if (new_funcs > old_funcs) { - s->functions = new_funcs; - pcmcia_device_add(s, 1); } } @@ -728,6 +726,8 @@ static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) struct pcmcia_socket *s = dev->socket; const struct firmware *fw; int ret = -ENOMEM; + cistpl_longlink_mfc_t mfc; + int old_funcs, new_funcs = 1; if (!filename) return -EINVAL; @@ -750,6 +750,14 @@ static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) goto release; } + /* we need to re-start if the number of functions changed */ + old_funcs = s->functions; + if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, + &mfc)) + new_funcs = mfc.nfn; + + if (old_funcs != new_funcs) + ret = -EBUSY; /* update information */ pcmcia_device_query(dev); @@ -858,10 +866,8 @@ static inline int pcmcia_devmatch(struct pcmcia_device *dev, if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { dev_dbg(&dev->dev, "device needs a fake CIS\n"); if (!dev->socket->fake_cis) - pcmcia_load_firmware(dev, did->cisfile); - - if (!dev->socket->fake_cis) - return 0; + if (pcmcia_load_firmware(dev, did->cisfile)) + return 0; } if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { From 41b97ab5050088cd23692d578e7294c7be26109a Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Thu, 15 Apr 2010 19:01:53 +0200 Subject: [PATCH 4/8] pcmcia: fix ioport size calculation in rsrc_nonstatic Size needs to be calculated after manipulating with the start value. Reported-by: Komuro Signed-off-by: Dominik Brodowski --- drivers/pcmcia/rsrc_nonstatic.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c index 1178a823fbc6..a6eb7b59ba9f 100644 --- a/drivers/pcmcia/rsrc_nonstatic.c +++ b/drivers/pcmcia/rsrc_nonstatic.c @@ -810,7 +810,7 @@ static int adjust_memory(struct pcmcia_socket *s, unsigned int action, unsigned static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long start, unsigned long end) { struct socket_data *data = s->resource_data; - unsigned long size = end - start + 1; + unsigned long size; int ret = 0; #if defined(CONFIG_X86) @@ -820,6 +820,8 @@ static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long start = 0x100; #endif + size = end - start + 1; + if (end < start) return -EINVAL; From a8408c17d0038b76a83affb1b56dc18fa1e7ed86 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Sat, 17 Apr 2010 17:37:33 +0200 Subject: [PATCH 5/8] pcmcia: avoid late calls to pccard_validate_cis pccard_validate_cis() nowadays destroys the CIS cache. Therefore, calling it after card setup should be avoided. We can't control the deprecated PCMCIA ioctl (which is only used on ARM nowadays), but we can avoid -- and report -- any other calls. Signed-off-by: Dominik Brodowski --- drivers/pcmcia/cistpl.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c index f230f6543bff..854959cada3a 100644 --- a/drivers/pcmcia/cistpl.c +++ b/drivers/pcmcia/cistpl.c @@ -1484,6 +1484,11 @@ int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *info) if (!s) return -EINVAL; + if (s->functions) { + WARN_ON(1); + return -EINVAL; + } + /* We do not want to validate the CIS cache... */ mutex_lock(&s->ops_mutex); destroy_cis_cache(s); @@ -1639,7 +1644,7 @@ static ssize_t pccard_show_cis(struct kobject *kobj, count = 0; else { struct pcmcia_socket *s; - unsigned int chains; + unsigned int chains = 1; if (off + count > size) count = size - off; @@ -1648,7 +1653,7 @@ static ssize_t pccard_show_cis(struct kobject *kobj, if (!(s->state & SOCKET_PRESENT)) return -ENODEV; - if (pccard_validate_cis(s, &chains)) + if (!s->functions && pccard_validate_cis(s, &chains)) return -EIO; if (!chains) return -ENODATA; From 6f4567c8cf64d1887c8e993bbf066465262b392f Mon Sep 17 00:00:00 2001 From: Timur Maximov Date: Wed, 14 Apr 2010 19:06:57 +0400 Subject: [PATCH 6/8] serial_cs: MD55x support (PCMCIA GPRS/EDGE modem) (kernel 2.6.33) Many PCMCIA GPRS modems like: Onda Edge N100E, Novaway PC98 (OEM SPC98Z), Rovermate Edgus Adaptmate-039 and others have same construction and identification: lspcmcia -vvv Product Name: Generic Modem: MD55x 1.00 Serial number: xxxxx-xxx Identification: manf_id: 0x015d card_id: 0x4c45 function: 2 (serial) prod_id(1): "Generic" (0xc49e4731) prod_id(2): "Modem: MD55x" (0x8913b110) prod_id(3): "1.00" (0x83dbf271) prod_id(4): "Serial number: xxxxx-xxx" (0x73ee9514) Serial connection to GSM module based on Elan VPU16551 PCMCIA UART with datasheet recommeded 14.7456MHz crystal oscillator. By default serial_cs set UART clock == 1843200 Hz For correct work need set clock 14745600 Hz. This quirk already present in driver, only need add device in quirk list. Signed-off-by: Timur Maximov Acked-by: Alan Cox Signed-off-by: Dominik Brodowski --- drivers/serial/serial_cs.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c index 175d202ab37e..8cfa5b12ea7a 100644 --- a/drivers/serial/serial_cs.c +++ b/drivers/serial/serial_cs.c @@ -105,6 +105,10 @@ struct serial_cfg_mem { * manfid 0x0160, 0x0104 * This card appears to have a 14.7456MHz clock. */ +/* Generic Modem: MD55x (GPRS/EDGE) have + * Elan VPU16551 UART with 14.7456MHz oscillator + * manfid 0x015D, 0x4C45 + */ static void quirk_setup_brainboxes_0104(struct pcmcia_device *link, struct uart_port *port) { port->uartclk = 14745600; @@ -195,6 +199,11 @@ static const struct serial_quirk quirks[] = { .prodid = 0x0104, .multi = -1, .setup = quirk_setup_brainboxes_0104, + }, { + .manfid = 0x015D, + .prodid = 0x4C45, + .multi = -1, + .setup = quirk_setup_brainboxes_0104, }, { .manfid = MANFID_IBM, .prodid = ~0, From 42d284b986105a6ed5ac386818cae093532b2c55 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Mon, 29 Mar 2010 17:35:24 +0200 Subject: [PATCH 7/8] drivers/pcmcia: Add missing local_irq_restore Use local_irq_restore in this error-handling case just like in the one just below. A simplified version of the semantic patch that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @r exists@ expression E1; identifier f; @@ f (...) { <+... * local_irq_save (E1,...); ... when != E1 * return ...; ...+> } // Signed-off-by: Julia Lawall Signed-off-by: Dominik Brodowski --- drivers/pcmcia/db1xxx_ss.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/pcmcia/db1xxx_ss.c b/drivers/pcmcia/db1xxx_ss.c index 6206408e196c..2d48196a48cd 100644 --- a/drivers/pcmcia/db1xxx_ss.c +++ b/drivers/pcmcia/db1xxx_ss.c @@ -166,8 +166,10 @@ static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock) ret = request_irq(sock->insert_irq, db1200_pcmcia_cdirq, IRQF_DISABLED, "pcmcia_insert", sock); - if (ret) + if (ret) { + local_irq_restore(flags); goto out1; + } ret = request_irq(sock->eject_irq, db1200_pcmcia_cdirq, IRQF_DISABLED, "pcmcia_eject", sock); From 07a71415d5f790385695784a9b0e554412ee95c3 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sun, 18 Apr 2010 22:07:33 +0300 Subject: [PATCH 8/8] pcmcia: fix error handling in cm4000_cs.c In the original code we used -ENODEV as the number of bytes to copy_to_user() and we didn't release the locks. Signed-off-by: Dan Carpenter Acked-by: Harald Welte Signed-off-by: Dominik Brodowski --- drivers/char/pcmcia/cm4000_cs.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c index c9bc896d68af..90b199f97bec 100644 --- a/drivers/char/pcmcia/cm4000_cs.c +++ b/drivers/char/pcmcia/cm4000_cs.c @@ -1026,14 +1026,16 @@ static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count, xoutb(0, REG_FLAGS1(iobase)); /* clear detectCMM */ /* last check before exit */ - if (!io_detect_cm4000(iobase, dev)) - count = -ENODEV; + if (!io_detect_cm4000(iobase, dev)) { + rc = -ENODEV; + goto release_io; + } if (test_bit(IS_INVREV, &dev->flags) && count > 0) str_invert_revert(dev->rbuf, count); if (copy_to_user(buf, dev->rbuf, count)) - return -EFAULT; + rc = -EFAULT; release_io: clear_bit(LOCK_IO, &dev->flags);