[PATCH 4/9] ipwireless: make more use of pcmcia_loop_config()
Dominik Brodowski
linux at dominikbrodowski.net
Sun Oct 18 19:07:30 EDT 2009
Within the pcmcia_loop_config() callback, we already have all
tuple data available we need. Also add a fix to release the IO
resource (at least within pcmcia_loop_config() error path).
CC: Jiri Kosina <jkosina at suse.cz>
CC: David Sterba <dsterba at suse.cz>
Signed-off-by: Dominik Brodowski <linux at dominikbrodowski.net>
---
drivers/char/pcmcia/ipwireless/main.c | 213 +++++++++++++++------------------
1 files changed, 99 insertions(+), 114 deletions(-)
diff --git a/drivers/char/pcmcia/ipwireless/main.c b/drivers/char/pcmcia/ipwireless/main.c
index 263a18f..0f46749 100644
--- a/drivers/char/pcmcia/ipwireless/main.c
+++ b/drivers/char/pcmcia/ipwireless/main.c
@@ -79,12 +79,18 @@ static void signalled_reboot_callback(void *callback_data)
schedule_work(&ipw->work_reboot);
}
-static int ipwireless_ioprobe(struct pcmcia_device *p_dev,
- cistpl_cftable_entry_t *cfg,
- cistpl_cftable_entry_t *dflt,
- unsigned int vcc,
- void *priv_data)
+static int ipwireless_probe(struct pcmcia_device *p_dev,
+ cistpl_cftable_entry_t *cfg,
+ cistpl_cftable_entry_t *dflt,
+ unsigned int vcc,
+ void *priv_data)
{
+ struct ipw_dev *ipw = priv_data;
+ struct resource *io_resource;
+ memreq_t memreq_attr_memory;
+ memreq_t memreq_common_memory;
+ int ret;
+
p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
p_dev->io.BasePort1 = cfg->io.win[0].base;
p_dev->io.NumPorts1 = cfg->io.win[0].len;
@@ -95,133 +101,118 @@ static int ipwireless_ioprobe(struct pcmcia_device *p_dev,
/* 0x40 causes it to generate level mode interrupts. */
/* 0x04 enables IREQ pin. */
p_dev->conf.ConfigIndex = cfg->index | 0x44;
- return pcmcia_request_io(p_dev, &p_dev->io);
-}
+ ret = pcmcia_request_io(p_dev, &p_dev->io);
+ if (ret)
+ return ret;
-static int config_ipwireless(struct ipw_dev *ipw)
-{
- struct pcmcia_device *link = ipw->link;
- int ret = 0;
- tuple_t tuple;
- unsigned short buf[64];
- cisparse_t parse;
- memreq_t memreq_attr_memory;
- memreq_t memreq_common_memory;
+ io_resource = request_region(p_dev->io.BasePort1, p_dev->io.NumPorts1,
+ IPWIRELESS_PCCARD_NAME);
- ipw->is_v2_card = 0;
+ if (cfg->mem.nwin == 0)
+ return 0;
- tuple.Attributes = 0;
- tuple.TupleData = (cisdata_t *) buf;
- tuple.TupleDataMax = sizeof(buf);
- tuple.TupleOffset = 0;
+ ipw->request_common_memory.Attributes =
+ WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
+ ipw->request_common_memory.Base = cfg->mem.win[0].host_addr;
+ ipw->request_common_memory.Size = cfg->mem.win[0].len;
+ if (ipw->request_common_memory.Size < 0x1000)
+ ipw->request_common_memory.Size = 0x1000;
+ ipw->request_common_memory.AccessSpeed = 0;
+
+ ret = pcmcia_request_window(&p_dev, &ipw->request_common_memory,
+ &ipw->handle_common_memory);
- ret = pcmcia_loop_config(link, ipwireless_ioprobe, NULL);
if (ret != 0) {
- cs_error(link, RequestIO, ret);
- goto exit0;
+ cs_error(p_dev, RequestWindow, ret);
+ goto exit1;
}
- link->conf.Attributes = CONF_ENABLE_IRQ;
- link->conf.IntType = INT_MEMORY_AND_IO;
-
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
- link->irq.Handler = ipwireless_interrupt;
- link->irq.Instance = ipw->hardware;
+ memreq_common_memory.CardOffset = cfg->mem.win[0].card_addr;
+ memreq_common_memory.Page = 0;
- request_region(link->io.BasePort1, link->io.NumPorts1,
- IPWIRELESS_PCCARD_NAME);
-
- /* memory settings */
- tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+ ret = pcmcia_map_mem_page(ipw->handle_common_memory,
+ &memreq_common_memory);
- ret = pcmcia_get_first_tuple(link, &tuple);
if (ret != 0) {
- cs_error(link, GetFirstTuple, ret);
- goto exit1;
+ cs_error(p_dev, MapMemPage, ret);
+ goto exit2;
}
- ret = pcmcia_get_tuple_data(link, &tuple);
+ ipw->is_v2_card = cfg->mem.win[0].len == 0x100;
- if (ret != 0) {
- cs_error(link, GetTupleData, ret);
- goto exit1;
- }
+ ipw->common_memory = ioremap(ipw->request_common_memory.Base,
+ ipw->request_common_memory.Size);
+ request_mem_region(ipw->request_common_memory.Base,
+ ipw->request_common_memory.Size,
+ IPWIRELESS_PCCARD_NAME);
+
+ ipw->request_attr_memory.Attributes =
+ WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM | WIN_ENABLE;
+ ipw->request_attr_memory.Base = 0;
+ ipw->request_attr_memory.Size = 0; /* this used to be 0x1000 */
+ ipw->request_attr_memory.AccessSpeed = 0;
- ret = pcmcia_parse_tuple(&tuple, &parse);
+ ret = pcmcia_request_window(&p_dev, &ipw->request_attr_memory,
+ &ipw->handle_attr_memory);
if (ret != 0) {
- cs_error(link, ParseTuple, ret);
- goto exit1;
+ cs_error(p_dev, RequestWindow, ret);
+ goto exit2;
}
- if (parse.cftable_entry.mem.nwin > 0) {
- ipw->request_common_memory.Attributes =
- WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
- ipw->request_common_memory.Base =
- parse.cftable_entry.mem.win[0].host_addr;
- ipw->request_common_memory.Size = parse.cftable_entry.mem.win[0].len;
- if (ipw->request_common_memory.Size < 0x1000)
- ipw->request_common_memory.Size = 0x1000;
- ipw->request_common_memory.AccessSpeed = 0;
-
- ret = pcmcia_request_window(&link, &ipw->request_common_memory,
- &ipw->handle_common_memory);
-
- if (ret != 0) {
- cs_error(link, RequestWindow, ret);
- goto exit1;
- }
+ memreq_attr_memory.CardOffset = 0;
+ memreq_attr_memory.Page = 0;
- memreq_common_memory.CardOffset =
- parse.cftable_entry.mem.win[0].card_addr;
- memreq_common_memory.Page = 0;
+ ret = pcmcia_map_mem_page(ipw->handle_attr_memory,
+ &memreq_attr_memory);
- ret = pcmcia_map_mem_page(ipw->handle_common_memory,
- &memreq_common_memory);
+ if (ret != 0) {
+ cs_error(p_dev, MapMemPage, ret);
+ goto exit3;
+ }
- if (ret != 0) {
- cs_error(link, MapMemPage, ret);
- goto exit1;
- }
+ ipw->attr_memory = ioremap(ipw->request_attr_memory.Base,
+ ipw->request_attr_memory.Size);
+ request_mem_region(ipw->request_attr_memory.Base,
+ ipw->request_attr_memory.Size, IPWIRELESS_PCCARD_NAME);
- ipw->is_v2_card =
- parse.cftable_entry.mem.win[0].len == 0x100;
+ return 0;
- ipw->common_memory = ioremap(ipw->request_common_memory.Base,
+exit3:
+ pcmcia_release_window(ipw->handle_attr_memory);
+exit2:
+ if (ipw->common_memory) {
+ release_mem_region(ipw->request_common_memory.Base,
ipw->request_common_memory.Size);
- request_mem_region(ipw->request_common_memory.Base,
- ipw->request_common_memory.Size, IPWIRELESS_PCCARD_NAME);
-
- ipw->request_attr_memory.Attributes =
- WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM | WIN_ENABLE;
- ipw->request_attr_memory.Base = 0;
- ipw->request_attr_memory.Size = 0; /* this used to be 0x1000 */
- ipw->request_attr_memory.AccessSpeed = 0;
-
- ret = pcmcia_request_window(&link, &ipw->request_attr_memory,
- &ipw->handle_attr_memory);
+ iounmap(ipw->common_memory);
+ pcmcia_release_window(ipw->handle_common_memory);
+ } else
+ pcmcia_release_window(ipw->handle_common_memory);
+exit1:
+ release_resource(io_resource);
+ pcmcia_disable_device(p_dev);
+ return -1;
+}
- if (ret != 0) {
- cs_error(link, RequestWindow, ret);
- goto exit2;
- }
+static int config_ipwireless(struct ipw_dev *ipw)
+{
+ struct pcmcia_device *link = ipw->link;
+ int ret = 0;
- memreq_attr_memory.CardOffset = 0;
- memreq_attr_memory.Page = 0;
+ ipw->is_v2_card = 0;
- ret = pcmcia_map_mem_page(ipw->handle_attr_memory,
- &memreq_attr_memory);
+ ret = pcmcia_loop_config(link, ipwireless_probe, ipw);
+ if (ret != 0) {
+ cs_error(link, RequestIO, ret);
+ return ret;
+ }
- if (ret != 0) {
- cs_error(link, MapMemPage, ret);
- goto exit2;
- }
+ link->conf.Attributes = CONF_ENABLE_IRQ;
+ link->conf.IntType = INT_MEMORY_AND_IO;
- ipw->attr_memory = ioremap(ipw->request_attr_memory.Base,
- ipw->request_attr_memory.Size);
- request_mem_region(ipw->request_attr_memory.Base, ipw->request_attr_memory.Size,
- IPWIRELESS_PCCARD_NAME);
- }
+ link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
+ link->irq.Handler = ipwireless_interrupt;
+ link->irq.Instance = ipw->hardware;
INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
@@ -234,7 +225,7 @@ static int config_ipwireless(struct ipw_dev *ipw)
if (ret != 0) {
cs_error(link, RequestIRQ, ret);
- goto exit3;
+ goto exit;
}
printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n",
@@ -257,12 +248,12 @@ static int config_ipwireless(struct ipw_dev *ipw)
ipw->network = ipwireless_network_create(ipw->hardware);
if (!ipw->network)
- goto exit3;
+ goto exit;
ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network,
ipw->nodes);
if (!ipw->tty)
- goto exit3;
+ goto exit;
ipwireless_init_hardware_v2_v3(ipw->hardware);
@@ -274,33 +265,27 @@ static int config_ipwireless(struct ipw_dev *ipw)
if (ret != 0) {
cs_error(link, RequestConfiguration, ret);
- goto exit4;
+ goto exit;
}
link->dev_node = &ipw->nodes[0];
return 0;
-exit4:
- pcmcia_disable_device(link);
-exit3:
+exit:
if (ipw->attr_memory) {
release_mem_region(ipw->request_attr_memory.Base,
ipw->request_attr_memory.Size);
iounmap(ipw->attr_memory);
pcmcia_release_window(ipw->handle_attr_memory);
- pcmcia_disable_device(link);
}
-exit2:
if (ipw->common_memory) {
release_mem_region(ipw->request_common_memory.Base,
ipw->request_common_memory.Size);
iounmap(ipw->common_memory);
pcmcia_release_window(ipw->handle_common_memory);
}
-exit1:
pcmcia_disable_device(link);
-exit0:
return -1;
}
--
1.6.0.4
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