From 00eb62cfc5f806b003fe5d54c8b5fe9a9665482f Mon Sep 17 00:00:00 2001
From: Ian Molton <ian@mnementh.co.uk>
Date: Tue, 19 Dec 2017 13:47:13 +0100
Subject: [PATCH] brcmfmac: Replace function index with function pointer
Git-commit: 00eb62cfc5f806b003fe5d54c8b5fe9a9665482f
Patch-mainline: v4.16-rc1
References: FATE#326294
In preparation for removing the function array, remove all code that
refers to function by index and replace with pointers to the function
itself.
Signed-off-by: Ian Molton <ian@mnementh.co.uk>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
[arend: replace BUG() with WARN() macro]
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
.../broadcom/brcm80211/brcmfmac/bcmsdh.c | 85 ++++++++++---------
.../broadcom/brcm80211/brcmfmac/sdio.c | 15 ++--
.../broadcom/brcm80211/brcmfmac/sdio.h | 6 +-
3 files changed, 56 insertions(+), 50 deletions(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
index b7931ebd6435..d357c5cf5457 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
@@ -291,8 +291,9 @@ void brcmf_sdiod_writel(struct brcmf_sdio_dev *sdiodev, u32 addr,
*ret = retval;
}
-static int brcmf_sdiod_buff_read(struct brcmf_sdio_dev *sdiodev, uint fn,
- u32 addr, struct sk_buff *pkt)
+static int brcmf_sdiod_buff_read(struct brcmf_sdio_dev *sdiodev,
+ struct sdio_func *func, u32 addr,
+ struct sk_buff *pkt)
{
unsigned int req_sz;
int err;
@@ -301,13 +302,19 @@ static int brcmf_sdiod_buff_read(struct brcmf_sdio_dev *sdiodev, uint fn,
req_sz = pkt->len + 3;
req_sz &= (uint)~3;
- if (fn == 1)
- err = sdio_memcpy_fromio(sdiodev->func[fn],
- ((u8 *)(pkt->data)), addr, req_sz);
- else
- /* function 2 read is FIFO operation */
- err = sdio_readsb(sdiodev->func[fn],
- ((u8 *)(pkt->data)), addr, req_sz);
+ switch (func->num) {
+ case 1:
+ err = sdio_memcpy_fromio(func, ((u8 *)(pkt->data)), addr,
+ req_sz);
+ break;
+ case 2:
+ err = sdio_readsb(func, ((u8 *)(pkt->data)), addr, req_sz);
+ break;
+ default:
+ /* bail out as things are really fishy here */
+ WARN(1, "invalid sdio function number: %d\n", func->num);
+ err = -ENOMEDIUM;
+ };
if (err == -ENOMEDIUM)
brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM);
@@ -315,8 +322,9 @@ static int brcmf_sdiod_buff_read(struct brcmf_sdio_dev *sdiodev, uint fn,
return err;
}
-static int brcmf_sdiod_buff_write(struct brcmf_sdio_dev *sdiodev, uint fn,
- u32 addr, struct sk_buff *pkt)
+static int brcmf_sdiod_buff_write(struct brcmf_sdio_dev *sdiodev,
+ struct sdio_func *func, u32 addr,
+ struct sk_buff *pkt)
{
unsigned int req_sz;
int err;
@@ -325,8 +333,7 @@ static int brcmf_sdiod_buff_write(struct brcmf_sdio_dev *sdiodev, uint fn,
req_sz = pkt->len + 3;
req_sz &= (uint)~3;
- err = sdio_memcpy_toio(sdiodev->func[fn], addr,
- ((u8 *)(pkt->data)), req_sz);
+ err = sdio_memcpy_toio(func, addr, ((u8 *)(pkt->data)), req_sz);
if (err == -ENOMEDIUM)
brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM);
@@ -337,7 +344,7 @@ static int brcmf_sdiod_buff_write(struct brcmf_sdio_dev *sdiodev, uint fn,
/**
* brcmf_sdiod_sglist_rw - SDIO interface function for block data access
* @sdiodev: brcmfmac sdio device
- * @fn: SDIO function number
+ * @func: SDIO function
* @write: direction flag
* @addr: dongle memory address as source/destination
* @pkt: skb pointer
@@ -346,7 +353,8 @@ static int brcmf_sdiod_buff_write(struct brcmf_sdio_dev *sdiodev, uint fn,
* stack for block data access. It assumes that the skb passed down by the
* caller has already been padded and aligned.
*/
-static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev, uint fn,
+static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev,
+ struct sdio_func *func,
bool write, u32 addr,
struct sk_buff_head *pktlist)
{
@@ -372,7 +380,7 @@ static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev, uint fn,
req_sz = 0;
skb_queue_walk(pktlist, pkt_next)
req_sz += pkt_next->len;
- req_sz = ALIGN(req_sz, sdiodev->func[fn]->cur_blksize);
+ req_sz = ALIGN(req_sz, func->cur_blksize);
while (req_sz > PAGE_SIZE) {
pkt_next = brcmu_pkt_buf_get_skb(PAGE_SIZE);
if (pkt_next == NULL) {
@@ -391,7 +399,7 @@ static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev, uint fn,
target_list = &local_list;
}
- func_blk_sz = sdiodev->func[fn]->cur_blksize;
+ func_blk_sz = func->cur_blksize;
max_req_sz = sdiodev->max_request_size;
max_seg_cnt = min_t(unsigned short, sdiodev->max_segment_count,
target_list->qlen);
@@ -408,10 +416,10 @@ static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev, uint fn,
mmc_dat.flags = write ? MMC_DATA_WRITE : MMC_DATA_READ;
mmc_cmd.opcode = SD_IO_RW_EXTENDED;
mmc_cmd.arg = write ? 1<<31 : 0; /* write flag */
- mmc_cmd.arg |= (fn & 0x7) << 28; /* SDIO func num */
- mmc_cmd.arg |= 1<<27; /* block mode */
+ mmc_cmd.arg |= (func->num & 0x7) << 28; /* SDIO func num */
+ mmc_cmd.arg |= 1 << 27; /* block mode */
/* for function 1 the addr will be incremented */
- mmc_cmd.arg |= (fn == 1) ? 1<<26 : 0;
+ mmc_cmd.arg |= (func->num == 1) ? 1 << 26 : 0;
mmc_cmd.flags = MMC_RSP_SPI_R5 | MMC_RSP_R5 | MMC_CMD_ADTC;
mmc_req.cmd = &mmc_cmd;
mmc_req.data = &mmc_dat;
@@ -457,11 +465,11 @@ static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev, uint fn,
mmc_cmd.arg |= (addr & 0x1FFFF) << 9; /* address */
mmc_cmd.arg |= mmc_dat.blocks & 0x1FF; /* block count */
/* incrementing addr for function 1 */
- if (fn == 1)
+ if (func->num == 1)
addr += req_sz;
- mmc_set_data_timeout(&mmc_dat, sdiodev->func[fn]->card);
- mmc_wait_for_req(sdiodev->func[fn]->card->host, &mmc_req);
+ mmc_set_data_timeout(&mmc_dat, func->card);
+ mmc_wait_for_req(func->card->host, &mmc_req);
ret = mmc_cmd.error ? mmc_cmd.error : mmc_dat.error;
if (ret == -ENOMEDIUM) {
@@ -541,7 +549,7 @@ int brcmf_sdiod_recv_pkt(struct brcmf_sdio_dev *sdiodev, struct sk_buff *pkt)
addr &= SBSDIO_SB_OFT_ADDR_MASK;
addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
- err = brcmf_sdiod_buff_read(sdiodev, SDIO_FUNC_2, addr, pkt);
+ err = brcmf_sdiod_buff_read(sdiodev, sdiodev->func[2], addr, pkt);
done:
return err;
@@ -566,13 +574,13 @@ int brcmf_sdiod_recv_chain(struct brcmf_sdio_dev *sdiodev,
addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
if (pktq->qlen == 1)
- err = brcmf_sdiod_buff_read(sdiodev, SDIO_FUNC_2, addr,
+ err = brcmf_sdiod_buff_read(sdiodev, sdiodev->func[2], addr,
pktq->next);
else if (!sdiodev->sg_support) {
glom_skb = brcmu_pkt_buf_get_skb(totlen);
if (!glom_skb)
return -ENOMEM;
- err = brcmf_sdiod_buff_read(sdiodev, SDIO_FUNC_2, addr,
+ err = brcmf_sdiod_buff_read(sdiodev, sdiodev->func[2], addr,
glom_skb);
if (err)
goto done;
@@ -582,8 +590,8 @@ int brcmf_sdiod_recv_chain(struct brcmf_sdio_dev *sdiodev,
skb_pull(glom_skb, skb->len);
}
} else
- err = brcmf_sdiod_sglist_rw(sdiodev, SDIO_FUNC_2, false, addr,
- pktq);
+ err = brcmf_sdiod_sglist_rw(sdiodev, sdiodev->func[2], false,
+ addr, pktq);
done:
brcmu_pkt_buf_free_skb(glom_skb);
@@ -614,7 +622,8 @@ int brcmf_sdiod_send_buf(struct brcmf_sdio_dev *sdiodev, u8 *buf, uint nbytes)
addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
if (!err)
- err = brcmf_sdiod_buff_write(sdiodev, SDIO_FUNC_2, addr, mypkt);
+ err = brcmf_sdiod_buff_write(sdiodev, sdiodev->func[2], addr,
+ mypkt);
brcmu_pkt_buf_free_skb(mypkt);
@@ -639,14 +648,14 @@ int brcmf_sdiod_send_pkt(struct brcmf_sdio_dev *sdiodev,
if (pktq->qlen == 1 || !sdiodev->sg_support) {
skb_queue_walk(pktq, skb) {
- err = brcmf_sdiod_buff_write(sdiodev, SDIO_FUNC_2,
+ err = brcmf_sdiod_buff_write(sdiodev, sdiodev->func[2],
addr, skb);
if (err)
break;
}
} else {
- err = brcmf_sdiod_sglist_rw(sdiodev, SDIO_FUNC_2, true, addr,
- pktq);
+ err = brcmf_sdiod_sglist_rw(sdiodev, sdiodev->func[2], true,
+ addr, pktq);
}
return err;
@@ -696,10 +705,10 @@ brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
if (write) {
memcpy(pkt->data, data, dsize);
- err = brcmf_sdiod_buff_write(sdiodev, SDIO_FUNC_1,
+ err = brcmf_sdiod_buff_write(sdiodev, sdiodev->func[1],
sdaddr, pkt);
} else {
- err = brcmf_sdiod_buff_read(sdiodev, SDIO_FUNC_1,
+ err = brcmf_sdiod_buff_read(sdiodev, sdiodev->func[1],
sdaddr, pkt);
}
@@ -728,12 +737,12 @@ brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
return err;
}
-int brcmf_sdiod_abort(struct brcmf_sdio_dev *sdiodev, u8 fn)
+int brcmf_sdiod_abort(struct brcmf_sdio_dev *sdiodev, struct sdio_func *func)
{
brcmf_dbg(SDIO, "Enter\n");
/* Issue abort cmd52 command through F0 */
- brcmf_sdiod_func0_wb(sdiodev, SDIO_CCCR_ABORT, fn, NULL);
+ brcmf_sdiod_func0_wb(sdiodev, SDIO_CCCR_ABORT, func->num, NULL);
brcmf_dbg(SDIO, "Exit\n");
return 0;
@@ -1105,7 +1114,7 @@ static int brcmf_ops_sdio_suspend(struct device *dev)
func = container_of(dev, struct sdio_func, dev);
brcmf_dbg(SDIO, "Enter: F%d\n", func->num);
- if (func->num != SDIO_FUNC_1)
+ if (func->num != 1)
return 0;
@@ -1134,7 +1143,7 @@ static int brcmf_ops_sdio_resume(struct device *dev)
struct sdio_func *func = container_of(dev, struct sdio_func, dev);
brcmf_dbg(SDIO, "Enter: F%d\n", func->num);
- if (func->num != SDIO_FUNC_2)
+ if (func->num != 2)
return 0;
brcmf_sdiod_freezer_off(sdiodev);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 4cac703b057e..63bb1abed577 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -1157,7 +1157,7 @@ static void brcmf_sdio_rxfail(struct brcmf_sdio *bus, bool abort, bool rtx)
rtx ? ", send NAK" : "");
if (abort)
- brcmf_sdiod_abort(bus->sdiodev, SDIO_FUNC_2);
+ brcmf_sdiod_abort(bus->sdiodev, bus->sdiodev->func[2]);
brcmf_sdiod_writeb(bus->sdiodev, SBSDIO_FUNC1_FRAMECTRL, SFC_RF_TERM,
&err);
@@ -1209,7 +1209,7 @@ static void brcmf_sdio_txfail(struct brcmf_sdio *bus)
brcmf_err("sdio error, abort command and terminate frame\n");
bus->sdcnt.tx_sderrs++;
- brcmf_sdiod_abort(sdiodev, SDIO_FUNC_2);
+ brcmf_sdiod_abort(sdiodev, sdiodev->func[2]);
brcmf_sdiod_writeb(sdiodev, SBSDIO_FUNC1_FRAMECTRL, SFC_WF_TERM, NULL);
bus->sdcnt.f1regdata++;
@@ -2072,7 +2072,7 @@ static int brcmf_sdio_txpkt_prep_sg(struct brcmf_sdio *bus,
int ntail, ret;
sdiodev = bus->sdiodev;
- blksize = sdiodev->func[SDIO_FUNC_2]->cur_blksize;
+ blksize = sdiodev->func[2]->cur_blksize;
/* sg entry alignment should be a divisor of block size */
WARN_ON(blksize % bus->sgentry_align);
@@ -2441,7 +2441,7 @@ static void brcmf_sdio_bus_stop(struct device *dev)
/* Turn off the bus (F2), free any pending packets */
brcmf_dbg(INTR, "disable SDIO interrupts\n");
- sdio_disable_func(sdiodev->func[SDIO_FUNC_2]);
+ sdio_disable_func(sdiodev->func[2]);
/* Clear any pending interrupts now that F2 is disabled */
brcmf_sdiod_writel(sdiodev, core->base + SD_REG(intstatus),
@@ -4066,8 +4066,7 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err,
brcmf_sdiod_writel(sdiod, core->base + SD_REG(tosbmailboxdata),
SDPCM_PROT_VERSION << SMB_DATA_VERSION_SHIFT, NULL);
- err = sdio_enable_func(sdiodev->func[SDIO_FUNC_2]);
-
+ err = sdio_enable_func(sdiodev->func[2]);
brcmf_dbg(INFO, "enable F2: err=%d\n", err);
@@ -4082,7 +4081,7 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err,
brcmf_sdiod_writeb(sdiodev, SBSDIO_WATERMARK, 8, &err);
} else {
/* Disable F2 again */
- sdio_disable_func(sdiodev->func[SDIO_FUNC_2]);
+ sdio_disable_func(sdiodev->func[2]);
goto release;
}
@@ -4218,7 +4217,7 @@ struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev)
sdio_claim_host(bus->sdiodev->func[1]);
/* Disable F2 to clear any intermediate frame state on the dongle */
- sdio_disable_func(bus->sdiodev->func[SDIO_FUNC_2]);
+ sdio_disable_func(bus->sdiodev->func[2]);
bus->rxflow = false;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h
index 6e2fc065b8a7..54a03036fccb 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h
@@ -45,9 +45,6 @@
#define REG_F0_REG_MASK 0x7FF
#define REG_F1_MISC_MASK 0x1FFFF
-/* as of sdiod rev 0, supports 3 functions */
-#define SBSDIO_NUM_FUNCTION 3
-
/* function 0 vendor specific CCCR registers */
#define SDIO_CCCR_BRCM_CARDCAP 0xf0
@@ -350,7 +347,8 @@ int brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
u8 *data, uint size);
/* Issue an abort to the specified function */
-int brcmf_sdiod_abort(struct brcmf_sdio_dev *sdiodev, u8 fn);
+int brcmf_sdiod_abort(struct brcmf_sdio_dev *sdiodev, struct sdio_func *func);
+
void brcmf_sdiod_sgtable_alloc(struct brcmf_sdio_dev *sdiodev);
void brcmf_sdiod_change_state(struct brcmf_sdio_dev *sdiodev,
enum brcmf_sdiod_state state);
--
2.19.2