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path: root/drivers/net/wireless/ath/ath6kl/sdio.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/sdio.c')
-rw-r--r--drivers/net/wireless/ath/ath6kl/sdio.c79
1 files changed, 58 insertions, 21 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c
index 34171604cbe4..f1dc311ee0c7 100644
--- a/drivers/net/wireless/ath/ath6kl/sdio.c
+++ b/drivers/net/wireless/ath/ath6kl/sdio.c
@@ -25,6 +25,7 @@
#include "hif-ops.h"
#include "target.h"
#include "debug.h"
+#include "cfg80211.h"
struct ath6kl_sdio {
struct sdio_func *func;
@@ -134,10 +135,12 @@ static int ath6kl_sdio_io(struct sdio_func *func, u32 request, u32 addr,
int ret = 0;
if (request & HIF_WRITE) {
+ /* FIXME: looks like ugly workaround for something */
if (addr >= HIF_MBOX_BASE_ADDR &&
addr <= HIF_MBOX_END_ADDR)
addr += (HIF_MBOX_WIDTH - len);
+ /* FIXME: this also looks like ugly workaround */
if (addr == HIF_MBOX0_EXT_BASE_ADDR)
addr += HIF_MBOX0_EXT_WIDTH - len;
@@ -152,6 +155,11 @@ static int ath6kl_sdio_io(struct sdio_func *func, u32 request, u32 addr,
ret = sdio_memcpy_fromio(func, buf, addr, len);
}
+ ath6kl_dbg(ATH6KL_DBG_SDIO, "%s addr 0x%x%s buf 0x%p len %d\n",
+ request & HIF_WRITE ? "wr" : "rd", addr,
+ request & HIF_FIXED_ADDRESS ? " (fixed)" : "", buf, len);
+ ath6kl_dbg_dump(ATH6KL_DBG_SDIO_DUMP, NULL, "sdio ", buf, len);
+
return ret;
}
@@ -172,7 +180,8 @@ static struct bus_request *ath6kl_sdio_alloc_busreq(struct ath6kl_sdio *ar_sdio)
list_del(&bus_req->list);
spin_unlock_irqrestore(&ar_sdio->lock, flag);
- ath6kl_dbg(ATH6KL_DBG_TRC, "%s: bus request 0x%p\n", __func__, bus_req);
+ ath6kl_dbg(ATH6KL_DBG_SCATTER, "%s: bus request 0x%p\n",
+ __func__, bus_req);
return bus_req;
}
@@ -182,7 +191,8 @@ static void ath6kl_sdio_free_bus_req(struct ath6kl_sdio *ar_sdio,
{
unsigned long flag;
- ath6kl_dbg(ATH6KL_DBG_TRC, "%s: bus request 0x%p\n", __func__, bus_req);
+ ath6kl_dbg(ATH6KL_DBG_SCATTER, "%s: bus request 0x%p\n",
+ __func__, bus_req);
spin_lock_irqsave(&ar_sdio->lock, flag);
list_add_tail(&bus_req->list, &ar_sdio->bus_req_freeq);
@@ -213,16 +223,6 @@ static void ath6kl_sdio_setup_scat_data(struct hif_scatter_req *scat_req,
/* assemble SG list */
for (i = 0; i < scat_req->scat_entries; i++, sg++) {
- if ((unsigned long)scat_req->scat_list[i].buf & 0x3)
- /*
- * Some scatter engines can handle unaligned
- * buffers, print this as informational only.
- */
- ath6kl_dbg(ATH6KL_DBG_SCATTER,
- "(%s) scatter buffer is unaligned 0x%p\n",
- scat_req->req & HIF_WRITE ? "WR" : "RD",
- scat_req->scat_list[i].buf);
-
ath6kl_dbg(ATH6KL_DBG_SCATTER, "%d: addr:0x%p, len:%d\n",
i, scat_req->scat_list[i].buf,
scat_req->scat_list[i].len);
@@ -447,6 +447,8 @@ static void ath6kl_sdio_irq_handler(struct sdio_func *func)
int status;
struct ath6kl_sdio *ar_sdio;
+ ath6kl_dbg(ATH6KL_DBG_SDIO, "irq\n");
+
ar_sdio = sdio_get_drvdata(func);
atomic_set(&ar_sdio->irq_handling, 1);
@@ -684,7 +686,7 @@ static int ath6kl_sdio_enable_scatter(struct ath6kl *ar)
MAX_SCATTER_REQUESTS, virt_scat);
if (!ret) {
- ath6kl_dbg(ATH6KL_DBG_ANY,
+ ath6kl_dbg(ATH6KL_DBG_SCATTER,
"hif-scatter enabled: max scatter req : %d entries: %d\n",
MAX_SCATTER_REQUESTS,
MAX_SCATTER_ENTRIES_PER_REQ);
@@ -709,7 +711,7 @@ static int ath6kl_sdio_enable_scatter(struct ath6kl *ar)
return ret;
}
- ath6kl_dbg(ATH6KL_DBG_ANY,
+ ath6kl_dbg(ATH6KL_DBG_SCATTER,
"Vitual scatter enabled, max_scat_req:%d, entries:%d\n",
ATH6KL_SCATTER_REQS, ATH6KL_SCATTER_ENTRIES_PER_REQ);
@@ -721,6 +723,34 @@ static int ath6kl_sdio_enable_scatter(struct ath6kl *ar)
return 0;
}
+static int ath6kl_sdio_suspend(struct ath6kl *ar)
+{
+ struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);
+ struct sdio_func *func = ar_sdio->func;
+ mmc_pm_flag_t flags;
+ int ret;
+
+ flags = sdio_get_host_pm_caps(func);
+
+ if (!(flags & MMC_PM_KEEP_POWER))
+ /* as host doesn't support keep power we need to bail out */
+ ath6kl_dbg(ATH6KL_DBG_SDIO,
+ "func %d doesn't support MMC_PM_KEEP_POWER\n",
+ func->num);
+ return -EINVAL;
+
+ ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
+ if (ret) {
+ printk(KERN_ERR "ath6kl: set sdio pm flags failed: %d\n",
+ ret);
+ return ret;
+ }
+
+ ath6kl_deep_sleep_enable(ar);
+
+ return 0;
+}
+
static const struct ath6kl_hif_ops ath6kl_sdio_ops = {
.read_write_sync = ath6kl_sdio_read_write_sync,
.write_async = ath6kl_sdio_write_async,
@@ -731,6 +761,7 @@ static const struct ath6kl_hif_ops ath6kl_sdio_ops = {
.enable_scatter = ath6kl_sdio_enable_scatter,
.scat_req_rw = ath6kl_sdio_async_rw_scatter,
.cleanup_scatter = ath6kl_sdio_cleanup_scatter,
+ .suspend = ath6kl_sdio_suspend,
};
static int ath6kl_sdio_probe(struct sdio_func *func,
@@ -741,10 +772,10 @@ static int ath6kl_sdio_probe(struct sdio_func *func,
struct ath6kl *ar;
int count;
- ath6kl_dbg(ATH6KL_DBG_TRC,
- "%s: func: 0x%X, vendor id: 0x%X, dev id: 0x%X, block size: 0x%X/0x%X\n",
- __func__, func->num, func->vendor,
- func->device, func->max_blksize, func->cur_blksize);
+ ath6kl_dbg(ATH6KL_DBG_SDIO,
+ "new func %d vendor 0x%x device 0x%x block 0x%x/0x%x\n",
+ func->num, func->vendor, func->device,
+ func->max_blksize, func->cur_blksize);
ar_sdio = kzalloc(sizeof(struct ath6kl_sdio), GFP_KERNEL);
if (!ar_sdio)
@@ -800,10 +831,10 @@ static int ath6kl_sdio_probe(struct sdio_func *func,
ath6kl_err("Failed to enable 4-bit async irq mode %d\n",
ret);
sdio_release_host(func);
- goto err_dma;
+ goto err_cfg80211;
}
- ath6kl_dbg(ATH6KL_DBG_TRC, "4-bit async irq mode enabled\n");
+ ath6kl_dbg(ATH6KL_DBG_SDIO, "4-bit async irq mode enabled\n");
}
/* give us some time to enable, in ms */
@@ -813,7 +844,7 @@ static int ath6kl_sdio_probe(struct sdio_func *func,
ret = ath6kl_sdio_power_on(ar_sdio);
if (ret)
- goto err_dma;
+ goto err_cfg80211;
sdio_claim_host(func);
@@ -837,6 +868,8 @@ static int ath6kl_sdio_probe(struct sdio_func *func,
err_off:
ath6kl_sdio_power_off(ar_sdio);
+err_cfg80211:
+ ath6kl_cfg80211_deinit(ar_sdio->ar);
err_dma:
kfree(ar_sdio->dma_buffer);
err_hif:
@@ -849,6 +882,10 @@ static void ath6kl_sdio_remove(struct sdio_func *func)
{
struct ath6kl_sdio *ar_sdio;
+ ath6kl_dbg(ATH6KL_DBG_SDIO,
+ "removed func %d vendor 0x%x device 0x%x\n",
+ func->num, func->vendor, func->device);
+
ar_sdio = sdio_get_drvdata(func);
ath6kl_stop_txrx(ar_sdio->ar);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.