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openwrt/package/kernel/mac80211/patches/314-v4.16-0007-brcmfmac-Replace-function-index-with-function-pointe.patch
Rafał Miłecki 8d78cccc6e mac80211: brcmfmac: enlarge caps buffer & final sdio restructuring 
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2018-03-01 18:26:12 +01:00

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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
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>
---
.../wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c | 85 ++++++++++++----------
.../wireless/broadcom/brcm80211/brcmfmac/sdio.c | 15 ++--
.../wireless/broadcom/brcm80211/brcmfmac/sdio.h | 6 +-
3 files changed, 56 insertions(+), 50 deletions(-)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
@@ -291,8 +291,9 @@ out:
*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
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
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
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_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
* 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
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
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
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
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_sd
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_
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_
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_sd
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_sd
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
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
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
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
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);
--- 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 brc
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 brc
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(stru
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 d
/* 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
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
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;
}
@@ -4219,7 +4218,7 @@ struct brcmf_sdio *brcmf_sdio_probe(stru
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;
--- 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_
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);
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