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1233 lines
31 KiB
1233 lines
31 KiB
// SPDX-License-Identifier: ISC |
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/* |
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* Copyright (c) 2010 Broadcom Corporation |
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*/ |
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/* ****************** SDIO CARD Interface Functions **************************/ |
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|
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#include <linux/types.h> |
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#include <linux/netdevice.h> |
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#include <linux/pci.h> |
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#include <linux/pci_ids.h> |
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#include <linux/sched.h> |
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#include <linux/completion.h> |
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#include <linux/interrupt.h> |
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#include <linux/scatterlist.h> |
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#include <linux/mmc/sdio.h> |
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#include <linux/mmc/core.h> |
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#include <linux/mmc/sdio_func.h> |
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#include <linux/mmc/card.h> |
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#include <linux/mmc/host.h> |
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#include <linux/pm_runtime.h> |
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#include <linux/suspend.h> |
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#include <linux/errno.h> |
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#include <linux/module.h> |
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#include <linux/acpi.h> |
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#include <net/cfg80211.h> |
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#include <defs.h> |
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#include <brcm_hw_ids.h> |
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#include <brcmu_utils.h> |
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#include <brcmu_wifi.h> |
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#include <chipcommon.h> |
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#include <soc.h> |
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#include "chip.h" |
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#include "bus.h" |
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#include "debug.h" |
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#include "sdio.h" |
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#include "core.h" |
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#include "common.h" |
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#define SDIOH_API_ACCESS_RETRY_LIMIT 2 |
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#define DMA_ALIGN_MASK 0x03 |
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#define SDIO_FUNC1_BLOCKSIZE 64 |
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#define SDIO_FUNC2_BLOCKSIZE 512 |
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#define SDIO_4373_FUNC2_BLOCKSIZE 256 |
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#define SDIO_435X_FUNC2_BLOCKSIZE 256 |
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#define SDIO_4329_FUNC2_BLOCKSIZE 128 |
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/* Maximum milliseconds to wait for F2 to come up */ |
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#define SDIO_WAIT_F2RDY 3000 |
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#define BRCMF_DEFAULT_RXGLOM_SIZE 32 /* max rx frames in glom chain */ |
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struct brcmf_sdiod_freezer { |
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atomic_t freezing; |
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atomic_t thread_count; |
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u32 frozen_count; |
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wait_queue_head_t thread_freeze; |
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struct completion resumed; |
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}; |
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static irqreturn_t brcmf_sdiod_oob_irqhandler(int irq, void *dev_id) |
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{ |
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struct brcmf_bus *bus_if = dev_get_drvdata(dev_id); |
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struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio; |
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brcmf_dbg(INTR, "OOB intr triggered\n"); |
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/* out-of-band interrupt is level-triggered which won't |
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* be cleared until dpc |
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*/ |
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if (sdiodev->irq_en) { |
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disable_irq_nosync(irq); |
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sdiodev->irq_en = false; |
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} |
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brcmf_sdio_isr(sdiodev->bus, true); |
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return IRQ_HANDLED; |
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} |
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static void brcmf_sdiod_ib_irqhandler(struct sdio_func *func) |
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{ |
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struct brcmf_bus *bus_if = dev_get_drvdata(&func->dev); |
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struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio; |
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brcmf_dbg(INTR, "IB intr triggered\n"); |
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brcmf_sdio_isr(sdiodev->bus, false); |
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} |
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/* dummy handler for SDIO function 2 interrupt */ |
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static void brcmf_sdiod_dummy_irqhandler(struct sdio_func *func) |
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{ |
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} |
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int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev) |
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{ |
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struct brcmfmac_sdio_pd *pdata; |
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int ret = 0; |
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u8 data; |
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u32 addr, gpiocontrol; |
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pdata = &sdiodev->settings->bus.sdio; |
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if (pdata->oob_irq_supported) { |
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brcmf_dbg(SDIO, "Enter, register OOB IRQ %d\n", |
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pdata->oob_irq_nr); |
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spin_lock_init(&sdiodev->irq_en_lock); |
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sdiodev->irq_en = true; |
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ret = request_irq(pdata->oob_irq_nr, brcmf_sdiod_oob_irqhandler, |
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pdata->oob_irq_flags, "brcmf_oob_intr", |
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&sdiodev->func1->dev); |
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if (ret != 0) { |
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brcmf_err("request_irq failed %d\n", ret); |
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return ret; |
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} |
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sdiodev->oob_irq_requested = true; |
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ret = enable_irq_wake(pdata->oob_irq_nr); |
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if (ret != 0) { |
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brcmf_err("enable_irq_wake failed %d\n", ret); |
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return ret; |
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} |
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disable_irq_wake(pdata->oob_irq_nr); |
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sdio_claim_host(sdiodev->func1); |
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if (sdiodev->bus_if->chip == BRCM_CC_43362_CHIP_ID) { |
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/* assign GPIO to SDIO core */ |
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addr = brcmf_chip_enum_base(sdiodev->func1->device); |
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addr = CORE_CC_REG(addr, gpiocontrol); |
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gpiocontrol = brcmf_sdiod_readl(sdiodev, addr, &ret); |
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gpiocontrol |= 0x2; |
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brcmf_sdiod_writel(sdiodev, addr, gpiocontrol, &ret); |
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brcmf_sdiod_writeb(sdiodev, SBSDIO_GPIO_SELECT, |
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0xf, &ret); |
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brcmf_sdiod_writeb(sdiodev, SBSDIO_GPIO_OUT, 0, &ret); |
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brcmf_sdiod_writeb(sdiodev, SBSDIO_GPIO_EN, 0x2, &ret); |
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} |
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/* must configure SDIO_CCCR_IENx to enable irq */ |
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data = brcmf_sdiod_func0_rb(sdiodev, SDIO_CCCR_IENx, &ret); |
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data |= SDIO_CCCR_IEN_FUNC1 | SDIO_CCCR_IEN_FUNC2 | |
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SDIO_CCCR_IEN_FUNC0; |
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brcmf_sdiod_func0_wb(sdiodev, SDIO_CCCR_IENx, data, &ret); |
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/* redirect, configure and enable io for interrupt signal */ |
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data = SDIO_CCCR_BRCM_SEPINT_MASK | SDIO_CCCR_BRCM_SEPINT_OE; |
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if (pdata->oob_irq_flags & IRQF_TRIGGER_HIGH) |
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data |= SDIO_CCCR_BRCM_SEPINT_ACT_HI; |
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brcmf_sdiod_func0_wb(sdiodev, SDIO_CCCR_BRCM_SEPINT, |
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data, &ret); |
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sdio_release_host(sdiodev->func1); |
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} else { |
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brcmf_dbg(SDIO, "Entering\n"); |
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sdio_claim_host(sdiodev->func1); |
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sdio_claim_irq(sdiodev->func1, brcmf_sdiod_ib_irqhandler); |
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sdio_claim_irq(sdiodev->func2, brcmf_sdiod_dummy_irqhandler); |
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sdio_release_host(sdiodev->func1); |
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sdiodev->sd_irq_requested = true; |
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} |
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return 0; |
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} |
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void brcmf_sdiod_intr_unregister(struct brcmf_sdio_dev *sdiodev) |
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{ |
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brcmf_dbg(SDIO, "Entering oob=%d sd=%d\n", |
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sdiodev->oob_irq_requested, |
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sdiodev->sd_irq_requested); |
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if (sdiodev->oob_irq_requested) { |
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struct brcmfmac_sdio_pd *pdata; |
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pdata = &sdiodev->settings->bus.sdio; |
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sdio_claim_host(sdiodev->func1); |
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brcmf_sdiod_func0_wb(sdiodev, SDIO_CCCR_BRCM_SEPINT, 0, NULL); |
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brcmf_sdiod_func0_wb(sdiodev, SDIO_CCCR_IENx, 0, NULL); |
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sdio_release_host(sdiodev->func1); |
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sdiodev->oob_irq_requested = false; |
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free_irq(pdata->oob_irq_nr, &sdiodev->func1->dev); |
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sdiodev->irq_en = false; |
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sdiodev->oob_irq_requested = false; |
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} |
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if (sdiodev->sd_irq_requested) { |
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sdio_claim_host(sdiodev->func1); |
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sdio_release_irq(sdiodev->func2); |
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sdio_release_irq(sdiodev->func1); |
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sdio_release_host(sdiodev->func1); |
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sdiodev->sd_irq_requested = false; |
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} |
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} |
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void brcmf_sdiod_change_state(struct brcmf_sdio_dev *sdiodev, |
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enum brcmf_sdiod_state state) |
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{ |
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if (sdiodev->state == BRCMF_SDIOD_NOMEDIUM || |
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state == sdiodev->state) |
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return; |
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brcmf_dbg(TRACE, "%d -> %d\n", sdiodev->state, state); |
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switch (sdiodev->state) { |
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case BRCMF_SDIOD_DATA: |
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/* any other state means bus interface is down */ |
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brcmf_bus_change_state(sdiodev->bus_if, BRCMF_BUS_DOWN); |
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break; |
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case BRCMF_SDIOD_DOWN: |
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/* transition from DOWN to DATA means bus interface is up */ |
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if (state == BRCMF_SDIOD_DATA) |
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brcmf_bus_change_state(sdiodev->bus_if, BRCMF_BUS_UP); |
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break; |
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default: |
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break; |
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} |
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sdiodev->state = state; |
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} |
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static int brcmf_sdiod_set_backplane_window(struct brcmf_sdio_dev *sdiodev, |
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u32 addr) |
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{ |
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u32 v, bar0 = addr & SBSDIO_SBWINDOW_MASK; |
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int err = 0, i; |
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if (bar0 == sdiodev->sbwad) |
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return 0; |
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v = bar0 >> 8; |
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for (i = 0 ; i < 3 && !err ; i++, v >>= 8) |
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brcmf_sdiod_writeb(sdiodev, SBSDIO_FUNC1_SBADDRLOW + i, |
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v & 0xff, &err); |
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if (!err) |
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sdiodev->sbwad = bar0; |
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return err; |
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} |
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u32 brcmf_sdiod_readl(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret) |
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{ |
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u32 data = 0; |
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int retval; |
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retval = brcmf_sdiod_set_backplane_window(sdiodev, addr); |
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if (retval) |
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goto out; |
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addr &= SBSDIO_SB_OFT_ADDR_MASK; |
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addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; |
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data = sdio_readl(sdiodev->func1, addr, &retval); |
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out: |
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if (ret) |
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*ret = retval; |
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return data; |
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} |
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void brcmf_sdiod_writel(struct brcmf_sdio_dev *sdiodev, u32 addr, |
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u32 data, int *ret) |
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{ |
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int retval; |
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retval = brcmf_sdiod_set_backplane_window(sdiodev, addr); |
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if (retval) |
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goto out; |
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addr &= SBSDIO_SB_OFT_ADDR_MASK; |
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addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; |
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sdio_writel(sdiodev->func1, data, addr, &retval); |
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out: |
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if (ret) |
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*ret = retval; |
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} |
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static int brcmf_sdiod_skbuff_read(struct brcmf_sdio_dev *sdiodev, |
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struct sdio_func *func, u32 addr, |
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struct sk_buff *skb) |
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{ |
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unsigned int req_sz; |
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int err; |
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/* Single skb use the standard mmc interface */ |
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req_sz = skb->len + 3; |
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req_sz &= (uint)~3; |
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switch (func->num) { |
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case 1: |
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err = sdio_memcpy_fromio(func, ((u8 *)(skb->data)), addr, |
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req_sz); |
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break; |
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case 2: |
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err = sdio_readsb(func, ((u8 *)(skb->data)), addr, req_sz); |
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break; |
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default: |
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/* bail out as things are really fishy here */ |
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WARN(1, "invalid sdio function number: %d\n", func->num); |
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err = -ENOMEDIUM; |
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} |
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if (err == -ENOMEDIUM) |
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brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM); |
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return err; |
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} |
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static int brcmf_sdiod_skbuff_write(struct brcmf_sdio_dev *sdiodev, |
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struct sdio_func *func, u32 addr, |
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struct sk_buff *skb) |
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{ |
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unsigned int req_sz; |
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int err; |
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/* Single skb use the standard mmc interface */ |
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req_sz = skb->len + 3; |
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req_sz &= (uint)~3; |
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err = sdio_memcpy_toio(func, addr, ((u8 *)(skb->data)), req_sz); |
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if (err == -ENOMEDIUM) |
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brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM); |
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return err; |
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} |
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static int mmc_submit_one(struct mmc_data *md, struct mmc_request *mr, |
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struct mmc_command *mc, int sg_cnt, int req_sz, |
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int func_blk_sz, u32 *addr, |
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struct brcmf_sdio_dev *sdiodev, |
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struct sdio_func *func, int write) |
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{ |
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int ret; |
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md->sg_len = sg_cnt; |
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md->blocks = req_sz / func_blk_sz; |
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mc->arg |= (*addr & 0x1FFFF) << 9; /* address */ |
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mc->arg |= md->blocks & 0x1FF; /* block count */ |
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/* incrementing addr for function 1 */ |
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if (func->num == 1) |
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*addr += req_sz; |
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mmc_set_data_timeout(md, func->card); |
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mmc_wait_for_req(func->card->host, mr); |
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ret = mc->error ? mc->error : md->error; |
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if (ret == -ENOMEDIUM) { |
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brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM); |
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} else if (ret != 0) { |
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brcmf_err("CMD53 sg block %s failed %d\n", |
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write ? "write" : "read", ret); |
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ret = -EIO; |
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} |
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|
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return ret; |
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} |
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|
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/** |
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* brcmf_sdiod_sglist_rw - SDIO interface function for block data access |
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* @sdiodev: brcmfmac sdio device |
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* @func: SDIO function |
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* @write: direction flag |
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* @addr: dongle memory address as source/destination |
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* @pktlist: skb buffer head pointer |
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* |
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* This function takes the respbonsibility as the interface function to MMC |
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* stack for block data access. It assumes that the skb passed down by the |
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* caller has already been padded and aligned. |
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*/ |
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static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev, |
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struct sdio_func *func, |
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bool write, u32 addr, |
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struct sk_buff_head *pktlist) |
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{ |
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unsigned int req_sz, func_blk_sz, sg_cnt, sg_data_sz, pkt_offset; |
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unsigned int max_req_sz, src_offset, dst_offset; |
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unsigned char *pkt_data, *orig_data, *dst_data; |
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struct sk_buff_head local_list, *target_list; |
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struct sk_buff *pkt_next = NULL, *src; |
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unsigned short max_seg_cnt; |
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struct mmc_request mmc_req; |
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struct mmc_command mmc_cmd; |
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struct mmc_data mmc_dat; |
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struct scatterlist *sgl; |
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int ret = 0; |
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|
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if (!pktlist->qlen) |
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return -EINVAL; |
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|
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target_list = pktlist; |
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/* for host with broken sg support, prepare a page aligned list */ |
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__skb_queue_head_init(&local_list); |
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if (!write && sdiodev->settings->bus.sdio.broken_sg_support) { |
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req_sz = 0; |
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skb_queue_walk(pktlist, pkt_next) |
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req_sz += pkt_next->len; |
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req_sz = ALIGN(req_sz, func->cur_blksize); |
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while (req_sz > PAGE_SIZE) { |
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pkt_next = brcmu_pkt_buf_get_skb(PAGE_SIZE); |
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if (pkt_next == NULL) { |
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ret = -ENOMEM; |
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goto exit; |
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} |
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__skb_queue_tail(&local_list, pkt_next); |
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req_sz -= PAGE_SIZE; |
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} |
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pkt_next = brcmu_pkt_buf_get_skb(req_sz); |
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if (pkt_next == NULL) { |
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ret = -ENOMEM; |
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goto exit; |
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} |
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__skb_queue_tail(&local_list, pkt_next); |
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target_list = &local_list; |
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} |
|
|
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func_blk_sz = func->cur_blksize; |
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max_req_sz = sdiodev->max_request_size; |
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max_seg_cnt = min_t(unsigned short, sdiodev->max_segment_count, |
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target_list->qlen); |
|
|
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memset(&mmc_req, 0, sizeof(struct mmc_request)); |
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memset(&mmc_cmd, 0, sizeof(struct mmc_command)); |
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memset(&mmc_dat, 0, sizeof(struct mmc_data)); |
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|
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mmc_dat.sg = sdiodev->sgtable.sgl; |
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mmc_dat.blksz = func_blk_sz; |
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mmc_dat.flags = write ? MMC_DATA_WRITE : MMC_DATA_READ; |
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mmc_cmd.opcode = SD_IO_RW_EXTENDED; |
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mmc_cmd.arg = write ? 1<<31 : 0; /* write flag */ |
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mmc_cmd.arg |= (func->num & 0x7) << 28; /* SDIO func num */ |
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mmc_cmd.arg |= 1 << 27; /* block mode */ |
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/* for function 1 the addr will be incremented */ |
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mmc_cmd.arg |= (func->num == 1) ? 1 << 26 : 0; |
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mmc_cmd.flags = MMC_RSP_SPI_R5 | MMC_RSP_R5 | MMC_CMD_ADTC; |
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mmc_req.cmd = &mmc_cmd; |
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mmc_req.data = &mmc_dat; |
|
|
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req_sz = 0; |
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sg_cnt = 0; |
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sgl = sdiodev->sgtable.sgl; |
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skb_queue_walk(target_list, pkt_next) { |
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pkt_offset = 0; |
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while (pkt_offset < pkt_next->len) { |
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pkt_data = pkt_next->data + pkt_offset; |
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sg_data_sz = pkt_next->len - pkt_offset; |
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if (sg_data_sz > sdiodev->max_segment_size) |
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sg_data_sz = sdiodev->max_segment_size; |
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if (sg_data_sz > max_req_sz - req_sz) |
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sg_data_sz = max_req_sz - req_sz; |
|
|
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sg_set_buf(sgl, pkt_data, sg_data_sz); |
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sg_cnt++; |
|
|
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sgl = sg_next(sgl); |
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req_sz += sg_data_sz; |
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pkt_offset += sg_data_sz; |
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if (req_sz >= max_req_sz || sg_cnt >= max_seg_cnt) { |
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ret = mmc_submit_one(&mmc_dat, &mmc_req, &mmc_cmd, |
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sg_cnt, req_sz, func_blk_sz, |
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&addr, sdiodev, func, write); |
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if (ret) |
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goto exit_queue_walk; |
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req_sz = 0; |
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sg_cnt = 0; |
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sgl = sdiodev->sgtable.sgl; |
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} |
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} |
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} |
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if (sg_cnt) |
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ret = mmc_submit_one(&mmc_dat, &mmc_req, &mmc_cmd, |
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sg_cnt, req_sz, func_blk_sz, |
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&addr, sdiodev, func, write); |
|
exit_queue_walk: |
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if (!write && sdiodev->settings->bus.sdio.broken_sg_support) { |
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src = __skb_peek(&local_list); |
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src_offset = 0; |
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skb_queue_walk(pktlist, pkt_next) { |
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dst_offset = 0; |
|
|
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/* This is safe because we must have enough SKB data |
|
* in the local list to cover everything in pktlist. |
|
*/ |
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while (1) { |
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req_sz = pkt_next->len - dst_offset; |
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if (req_sz > src->len - src_offset) |
|
req_sz = src->len - src_offset; |
|
|
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orig_data = src->data + src_offset; |
|
dst_data = pkt_next->data + dst_offset; |
|
memcpy(dst_data, orig_data, req_sz); |
|
|
|
src_offset += req_sz; |
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if (src_offset == src->len) { |
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src_offset = 0; |
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src = skb_peek_next(src, &local_list); |
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} |
|
dst_offset += req_sz; |
|
if (dst_offset == pkt_next->len) |
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break; |
|
} |
|
} |
|
} |
|
|
|
exit: |
|
sg_init_table(sdiodev->sgtable.sgl, sdiodev->sgtable.orig_nents); |
|
while ((pkt_next = __skb_dequeue(&local_list)) != NULL) |
|
brcmu_pkt_buf_free_skb(pkt_next); |
|
|
|
return ret; |
|
} |
|
|
|
int brcmf_sdiod_recv_buf(struct brcmf_sdio_dev *sdiodev, u8 *buf, uint nbytes) |
|
{ |
|
struct sk_buff *mypkt; |
|
int err; |
|
|
|
mypkt = brcmu_pkt_buf_get_skb(nbytes); |
|
if (!mypkt) { |
|
brcmf_err("brcmu_pkt_buf_get_skb failed: len %d\n", |
|
nbytes); |
|
return -EIO; |
|
} |
|
|
|
err = brcmf_sdiod_recv_pkt(sdiodev, mypkt); |
|
if (!err) |
|
memcpy(buf, mypkt->data, nbytes); |
|
|
|
brcmu_pkt_buf_free_skb(mypkt); |
|
return err; |
|
} |
|
|
|
int brcmf_sdiod_recv_pkt(struct brcmf_sdio_dev *sdiodev, struct sk_buff *pkt) |
|
{ |
|
u32 addr = sdiodev->cc_core->base; |
|
int err = 0; |
|
|
|
brcmf_dbg(SDIO, "addr = 0x%x, size = %d\n", addr, pkt->len); |
|
|
|
err = brcmf_sdiod_set_backplane_window(sdiodev, addr); |
|
if (err) |
|
goto done; |
|
|
|
addr &= SBSDIO_SB_OFT_ADDR_MASK; |
|
addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; |
|
|
|
err = brcmf_sdiod_skbuff_read(sdiodev, sdiodev->func2, addr, pkt); |
|
|
|
done: |
|
return err; |
|
} |
|
|
|
int brcmf_sdiod_recv_chain(struct brcmf_sdio_dev *sdiodev, |
|
struct sk_buff_head *pktq, uint totlen) |
|
{ |
|
struct sk_buff *glom_skb = NULL; |
|
struct sk_buff *skb; |
|
u32 addr = sdiodev->cc_core->base; |
|
int err = 0; |
|
|
|
brcmf_dbg(SDIO, "addr = 0x%x, size = %d\n", |
|
addr, pktq->qlen); |
|
|
|
err = brcmf_sdiod_set_backplane_window(sdiodev, addr); |
|
if (err) |
|
goto done; |
|
|
|
addr &= SBSDIO_SB_OFT_ADDR_MASK; |
|
addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; |
|
|
|
if (pktq->qlen == 1) |
|
err = brcmf_sdiod_skbuff_read(sdiodev, sdiodev->func2, addr, |
|
__skb_peek(pktq)); |
|
else if (!sdiodev->sg_support) { |
|
glom_skb = brcmu_pkt_buf_get_skb(totlen); |
|
if (!glom_skb) |
|
return -ENOMEM; |
|
err = brcmf_sdiod_skbuff_read(sdiodev, sdiodev->func2, addr, |
|
glom_skb); |
|
if (err) |
|
goto done; |
|
|
|
skb_queue_walk(pktq, skb) { |
|
memcpy(skb->data, glom_skb->data, skb->len); |
|
skb_pull(glom_skb, skb->len); |
|
} |
|
} else |
|
err = brcmf_sdiod_sglist_rw(sdiodev, sdiodev->func2, false, |
|
addr, pktq); |
|
|
|
done: |
|
brcmu_pkt_buf_free_skb(glom_skb); |
|
return err; |
|
} |
|
|
|
int brcmf_sdiod_send_buf(struct brcmf_sdio_dev *sdiodev, u8 *buf, uint nbytes) |
|
{ |
|
struct sk_buff *mypkt; |
|
u32 addr = sdiodev->cc_core->base; |
|
int err; |
|
|
|
mypkt = brcmu_pkt_buf_get_skb(nbytes); |
|
|
|
if (!mypkt) { |
|
brcmf_err("brcmu_pkt_buf_get_skb failed: len %d\n", |
|
nbytes); |
|
return -EIO; |
|
} |
|
|
|
memcpy(mypkt->data, buf, nbytes); |
|
|
|
err = brcmf_sdiod_set_backplane_window(sdiodev, addr); |
|
if (err) |
|
goto out; |
|
|
|
addr &= SBSDIO_SB_OFT_ADDR_MASK; |
|
addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; |
|
|
|
err = brcmf_sdiod_skbuff_write(sdiodev, sdiodev->func2, addr, mypkt); |
|
out: |
|
brcmu_pkt_buf_free_skb(mypkt); |
|
|
|
return err; |
|
} |
|
|
|
int brcmf_sdiod_send_pkt(struct brcmf_sdio_dev *sdiodev, |
|
struct sk_buff_head *pktq) |
|
{ |
|
struct sk_buff *skb; |
|
u32 addr = sdiodev->cc_core->base; |
|
int err; |
|
|
|
brcmf_dbg(SDIO, "addr = 0x%x, size = %d\n", addr, pktq->qlen); |
|
|
|
err = brcmf_sdiod_set_backplane_window(sdiodev, addr); |
|
if (err) |
|
return err; |
|
|
|
addr &= SBSDIO_SB_OFT_ADDR_MASK; |
|
addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; |
|
|
|
if (pktq->qlen == 1 || !sdiodev->sg_support) { |
|
skb_queue_walk(pktq, skb) { |
|
err = brcmf_sdiod_skbuff_write(sdiodev, sdiodev->func2, |
|
addr, skb); |
|
if (err) |
|
break; |
|
} |
|
} else { |
|
err = brcmf_sdiod_sglist_rw(sdiodev, sdiodev->func2, true, |
|
addr, pktq); |
|
} |
|
|
|
return err; |
|
} |
|
|
|
int |
|
brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address, |
|
u8 *data, uint size) |
|
{ |
|
int err = 0; |
|
struct sk_buff *pkt; |
|
u32 sdaddr; |
|
uint dsize; |
|
|
|
dsize = min_t(uint, SBSDIO_SB_OFT_ADDR_LIMIT, size); |
|
pkt = dev_alloc_skb(dsize); |
|
if (!pkt) { |
|
brcmf_err("dev_alloc_skb failed: len %d\n", dsize); |
|
return -EIO; |
|
} |
|
pkt->priority = 0; |
|
|
|
/* Determine initial transfer parameters */ |
|
sdaddr = address & SBSDIO_SB_OFT_ADDR_MASK; |
|
if ((sdaddr + size) & SBSDIO_SBWINDOW_MASK) |
|
dsize = (SBSDIO_SB_OFT_ADDR_LIMIT - sdaddr); |
|
else |
|
dsize = size; |
|
|
|
sdio_claim_host(sdiodev->func1); |
|
|
|
/* Do the transfer(s) */ |
|
while (size) { |
|
/* Set the backplane window to include the start address */ |
|
err = brcmf_sdiod_set_backplane_window(sdiodev, address); |
|
if (err) |
|
break; |
|
|
|
brcmf_dbg(SDIO, "%s %d bytes at offset 0x%08x in window 0x%08x\n", |
|
write ? "write" : "read", dsize, |
|
sdaddr, address & SBSDIO_SBWINDOW_MASK); |
|
|
|
sdaddr &= SBSDIO_SB_OFT_ADDR_MASK; |
|
sdaddr |= SBSDIO_SB_ACCESS_2_4B_FLAG; |
|
|
|
skb_put(pkt, dsize); |
|
|
|
if (write) { |
|
memcpy(pkt->data, data, dsize); |
|
err = brcmf_sdiod_skbuff_write(sdiodev, sdiodev->func1, |
|
sdaddr, pkt); |
|
} else { |
|
err = brcmf_sdiod_skbuff_read(sdiodev, sdiodev->func1, |
|
sdaddr, pkt); |
|
} |
|
|
|
if (err) { |
|
brcmf_err("membytes transfer failed\n"); |
|
break; |
|
} |
|
if (!write) |
|
memcpy(data, pkt->data, dsize); |
|
skb_trim(pkt, 0); |
|
|
|
/* Adjust for next transfer (if any) */ |
|
size -= dsize; |
|
if (size) { |
|
data += dsize; |
|
address += dsize; |
|
sdaddr = 0; |
|
dsize = min_t(uint, SBSDIO_SB_OFT_ADDR_LIMIT, size); |
|
} |
|
} |
|
|
|
dev_kfree_skb(pkt); |
|
|
|
sdio_release_host(sdiodev->func1); |
|
|
|
return err; |
|
} |
|
|
|
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, func->num, NULL); |
|
|
|
brcmf_dbg(SDIO, "Exit\n"); |
|
return 0; |
|
} |
|
|
|
void brcmf_sdiod_sgtable_alloc(struct brcmf_sdio_dev *sdiodev) |
|
{ |
|
struct sdio_func *func; |
|
struct mmc_host *host; |
|
uint max_blocks; |
|
uint nents; |
|
int err; |
|
|
|
func = sdiodev->func2; |
|
host = func->card->host; |
|
sdiodev->sg_support = host->max_segs > 1; |
|
max_blocks = min_t(uint, host->max_blk_count, 511u); |
|
sdiodev->max_request_size = min_t(uint, host->max_req_size, |
|
max_blocks * func->cur_blksize); |
|
sdiodev->max_segment_count = min_t(uint, host->max_segs, |
|
SG_MAX_SINGLE_ALLOC); |
|
sdiodev->max_segment_size = host->max_seg_size; |
|
|
|
if (!sdiodev->sg_support) |
|
return; |
|
|
|
nents = max_t(uint, BRCMF_DEFAULT_RXGLOM_SIZE, |
|
sdiodev->settings->bus.sdio.txglomsz); |
|
nents += (nents >> 4) + 1; |
|
|
|
WARN_ON(nents > sdiodev->max_segment_count); |
|
|
|
brcmf_dbg(TRACE, "nents=%d\n", nents); |
|
err = sg_alloc_table(&sdiodev->sgtable, nents, GFP_KERNEL); |
|
if (err < 0) { |
|
brcmf_err("allocation failed: disable scatter-gather"); |
|
sdiodev->sg_support = false; |
|
} |
|
|
|
sdiodev->txglomsz = sdiodev->settings->bus.sdio.txglomsz; |
|
} |
|
|
|
#ifdef CONFIG_PM_SLEEP |
|
static int brcmf_sdiod_freezer_attach(struct brcmf_sdio_dev *sdiodev) |
|
{ |
|
sdiodev->freezer = kzalloc(sizeof(*sdiodev->freezer), GFP_KERNEL); |
|
if (!sdiodev->freezer) |
|
return -ENOMEM; |
|
atomic_set(&sdiodev->freezer->thread_count, 0); |
|
atomic_set(&sdiodev->freezer->freezing, 0); |
|
init_waitqueue_head(&sdiodev->freezer->thread_freeze); |
|
init_completion(&sdiodev->freezer->resumed); |
|
return 0; |
|
} |
|
|
|
static void brcmf_sdiod_freezer_detach(struct brcmf_sdio_dev *sdiodev) |
|
{ |
|
if (sdiodev->freezer) { |
|
WARN_ON(atomic_read(&sdiodev->freezer->freezing)); |
|
kfree(sdiodev->freezer); |
|
} |
|
} |
|
|
|
static int brcmf_sdiod_freezer_on(struct brcmf_sdio_dev *sdiodev) |
|
{ |
|
atomic_t *expect = &sdiodev->freezer->thread_count; |
|
int res = 0; |
|
|
|
sdiodev->freezer->frozen_count = 0; |
|
reinit_completion(&sdiodev->freezer->resumed); |
|
atomic_set(&sdiodev->freezer->freezing, 1); |
|
brcmf_sdio_trigger_dpc(sdiodev->bus); |
|
wait_event(sdiodev->freezer->thread_freeze, |
|
atomic_read(expect) == sdiodev->freezer->frozen_count); |
|
sdio_claim_host(sdiodev->func1); |
|
res = brcmf_sdio_sleep(sdiodev->bus, true); |
|
sdio_release_host(sdiodev->func1); |
|
return res; |
|
} |
|
|
|
static void brcmf_sdiod_freezer_off(struct brcmf_sdio_dev *sdiodev) |
|
{ |
|
sdio_claim_host(sdiodev->func1); |
|
brcmf_sdio_sleep(sdiodev->bus, false); |
|
sdio_release_host(sdiodev->func1); |
|
atomic_set(&sdiodev->freezer->freezing, 0); |
|
complete_all(&sdiodev->freezer->resumed); |
|
} |
|
|
|
bool brcmf_sdiod_freezing(struct brcmf_sdio_dev *sdiodev) |
|
{ |
|
return atomic_read(&sdiodev->freezer->freezing); |
|
} |
|
|
|
void brcmf_sdiod_try_freeze(struct brcmf_sdio_dev *sdiodev) |
|
{ |
|
if (!brcmf_sdiod_freezing(sdiodev)) |
|
return; |
|
sdiodev->freezer->frozen_count++; |
|
wake_up(&sdiodev->freezer->thread_freeze); |
|
wait_for_completion(&sdiodev->freezer->resumed); |
|
} |
|
|
|
void brcmf_sdiod_freezer_count(struct brcmf_sdio_dev *sdiodev) |
|
{ |
|
atomic_inc(&sdiodev->freezer->thread_count); |
|
} |
|
|
|
void brcmf_sdiod_freezer_uncount(struct brcmf_sdio_dev *sdiodev) |
|
{ |
|
atomic_dec(&sdiodev->freezer->thread_count); |
|
} |
|
#else |
|
static int brcmf_sdiod_freezer_attach(struct brcmf_sdio_dev *sdiodev) |
|
{ |
|
return 0; |
|
} |
|
|
|
static void brcmf_sdiod_freezer_detach(struct brcmf_sdio_dev *sdiodev) |
|
{ |
|
} |
|
#endif /* CONFIG_PM_SLEEP */ |
|
|
|
int brcmf_sdiod_remove(struct brcmf_sdio_dev *sdiodev) |
|
{ |
|
sdiodev->state = BRCMF_SDIOD_DOWN; |
|
if (sdiodev->bus) { |
|
brcmf_sdio_remove(sdiodev->bus); |
|
sdiodev->bus = NULL; |
|
} |
|
|
|
brcmf_sdiod_freezer_detach(sdiodev); |
|
|
|
/* Disable Function 2 */ |
|
sdio_claim_host(sdiodev->func2); |
|
sdio_disable_func(sdiodev->func2); |
|
sdio_release_host(sdiodev->func2); |
|
|
|
/* Disable Function 1 */ |
|
sdio_claim_host(sdiodev->func1); |
|
sdio_disable_func(sdiodev->func1); |
|
sdio_release_host(sdiodev->func1); |
|
|
|
sg_free_table(&sdiodev->sgtable); |
|
sdiodev->sbwad = 0; |
|
|
|
pm_runtime_allow(sdiodev->func1->card->host->parent); |
|
return 0; |
|
} |
|
|
|
static void brcmf_sdiod_host_fixup(struct mmc_host *host) |
|
{ |
|
/* runtime-pm powers off the device */ |
|
pm_runtime_forbid(host->parent); |
|
/* avoid removal detection upon resume */ |
|
host->caps |= MMC_CAP_NONREMOVABLE; |
|
} |
|
|
|
int brcmf_sdiod_probe(struct brcmf_sdio_dev *sdiodev) |
|
{ |
|
int ret = 0; |
|
unsigned int f2_blksz = SDIO_FUNC2_BLOCKSIZE; |
|
|
|
sdio_claim_host(sdiodev->func1); |
|
|
|
ret = sdio_set_block_size(sdiodev->func1, SDIO_FUNC1_BLOCKSIZE); |
|
if (ret) { |
|
brcmf_err("Failed to set F1 blocksize\n"); |
|
sdio_release_host(sdiodev->func1); |
|
goto out; |
|
} |
|
switch (sdiodev->func2->device) { |
|
case SDIO_DEVICE_ID_BROADCOM_CYPRESS_4373: |
|
f2_blksz = SDIO_4373_FUNC2_BLOCKSIZE; |
|
break; |
|
case SDIO_DEVICE_ID_BROADCOM_4359: |
|
case SDIO_DEVICE_ID_BROADCOM_4354: |
|
case SDIO_DEVICE_ID_BROADCOM_4356: |
|
f2_blksz = SDIO_435X_FUNC2_BLOCKSIZE; |
|
break; |
|
case SDIO_DEVICE_ID_BROADCOM_4329: |
|
f2_blksz = SDIO_4329_FUNC2_BLOCKSIZE; |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
ret = sdio_set_block_size(sdiodev->func2, f2_blksz); |
|
if (ret) { |
|
brcmf_err("Failed to set F2 blocksize\n"); |
|
sdio_release_host(sdiodev->func1); |
|
goto out; |
|
} else { |
|
brcmf_dbg(SDIO, "set F2 blocksize to %d\n", f2_blksz); |
|
} |
|
|
|
/* increase F2 timeout */ |
|
sdiodev->func2->enable_timeout = SDIO_WAIT_F2RDY; |
|
|
|
/* Enable Function 1 */ |
|
ret = sdio_enable_func(sdiodev->func1); |
|
sdio_release_host(sdiodev->func1); |
|
if (ret) { |
|
brcmf_err("Failed to enable F1: err=%d\n", ret); |
|
goto out; |
|
} |
|
|
|
ret = brcmf_sdiod_freezer_attach(sdiodev); |
|
if (ret) |
|
goto out; |
|
|
|
/* try to attach to the target device */ |
|
sdiodev->bus = brcmf_sdio_probe(sdiodev); |
|
if (!sdiodev->bus) { |
|
ret = -ENODEV; |
|
goto out; |
|
} |
|
brcmf_sdiod_host_fixup(sdiodev->func2->card->host); |
|
out: |
|
if (ret) |
|
brcmf_sdiod_remove(sdiodev); |
|
|
|
return ret; |
|
} |
|
|
|
#define BRCMF_SDIO_DEVICE(dev_id) \ |
|
{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, dev_id)} |
|
|
|
/* devices we support, null terminated */ |
|
static const struct sdio_device_id brcmf_sdmmc_ids[] = { |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43143), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43241), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4329), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4330), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4334), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43340), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43341), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43362), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43364), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4335_4339), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4339), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43430), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4345), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_43455), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4354), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4356), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4359), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_CYPRESS_4373), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_CYPRESS_43012), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_CYPRESS_43752), |
|
BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_CYPRESS_89359), |
|
{ /* end: all zeroes */ } |
|
}; |
|
MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids); |
|
|
|
|
|
static void brcmf_sdiod_acpi_set_power_manageable(struct device *dev, |
|
int val) |
|
{ |
|
#if IS_ENABLED(CONFIG_ACPI) |
|
struct acpi_device *adev; |
|
|
|
adev = ACPI_COMPANION(dev); |
|
if (adev) |
|
adev->flags.power_manageable = 0; |
|
#endif |
|
} |
|
|
|
static int brcmf_ops_sdio_probe(struct sdio_func *func, |
|
const struct sdio_device_id *id) |
|
{ |
|
int err; |
|
struct brcmf_sdio_dev *sdiodev; |
|
struct brcmf_bus *bus_if; |
|
struct device *dev; |
|
|
|
brcmf_dbg(SDIO, "Enter\n"); |
|
brcmf_dbg(SDIO, "Class=%x\n", func->class); |
|
brcmf_dbg(SDIO, "sdio vendor ID: 0x%04x\n", func->vendor); |
|
brcmf_dbg(SDIO, "sdio device ID: 0x%04x\n", func->device); |
|
brcmf_dbg(SDIO, "Function#: %d\n", func->num); |
|
|
|
dev = &func->dev; |
|
|
|
/* Set MMC_QUIRK_LENIENT_FN0 for this card */ |
|
func->card->quirks |= MMC_QUIRK_LENIENT_FN0; |
|
|
|
/* prohibit ACPI power management for this device */ |
|
brcmf_sdiod_acpi_set_power_manageable(dev, 0); |
|
|
|
/* Consume func num 1 but dont do anything with it. */ |
|
if (func->num == 1) |
|
return 0; |
|
|
|
/* Ignore anything but func 2 */ |
|
if (func->num != 2) |
|
return -ENODEV; |
|
|
|
bus_if = kzalloc(sizeof(struct brcmf_bus), GFP_KERNEL); |
|
if (!bus_if) |
|
return -ENOMEM; |
|
sdiodev = kzalloc(sizeof(struct brcmf_sdio_dev), GFP_KERNEL); |
|
if (!sdiodev) { |
|
kfree(bus_if); |
|
return -ENOMEM; |
|
} |
|
|
|
/* store refs to functions used. mmc_card does |
|
* not hold the F0 function pointer. |
|
*/ |
|
sdiodev->func1 = func->card->sdio_func[0]; |
|
sdiodev->func2 = func; |
|
|
|
sdiodev->bus_if = bus_if; |
|
bus_if->bus_priv.sdio = sdiodev; |
|
bus_if->proto_type = BRCMF_PROTO_BCDC; |
|
dev_set_drvdata(&func->dev, bus_if); |
|
dev_set_drvdata(&sdiodev->func1->dev, bus_if); |
|
sdiodev->dev = &sdiodev->func1->dev; |
|
|
|
brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_DOWN); |
|
|
|
brcmf_dbg(SDIO, "F2 found, calling brcmf_sdiod_probe...\n"); |
|
err = brcmf_sdiod_probe(sdiodev); |
|
if (err) { |
|
brcmf_err("F2 error, probe failed %d...\n", err); |
|
goto fail; |
|
} |
|
|
|
brcmf_dbg(SDIO, "F2 init completed...\n"); |
|
return 0; |
|
|
|
fail: |
|
dev_set_drvdata(&func->dev, NULL); |
|
dev_set_drvdata(&sdiodev->func1->dev, NULL); |
|
kfree(sdiodev); |
|
kfree(bus_if); |
|
return err; |
|
} |
|
|
|
static void brcmf_ops_sdio_remove(struct sdio_func *func) |
|
{ |
|
struct brcmf_bus *bus_if; |
|
struct brcmf_sdio_dev *sdiodev; |
|
|
|
brcmf_dbg(SDIO, "Enter\n"); |
|
brcmf_dbg(SDIO, "sdio vendor ID: 0x%04x\n", func->vendor); |
|
brcmf_dbg(SDIO, "sdio device ID: 0x%04x\n", func->device); |
|
brcmf_dbg(SDIO, "Function: %d\n", func->num); |
|
|
|
bus_if = dev_get_drvdata(&func->dev); |
|
if (bus_if) { |
|
sdiodev = bus_if->bus_priv.sdio; |
|
|
|
/* start by unregistering irqs */ |
|
brcmf_sdiod_intr_unregister(sdiodev); |
|
|
|
if (func->num != 1) |
|
return; |
|
|
|
/* only proceed with rest of cleanup if func 1 */ |
|
brcmf_sdiod_remove(sdiodev); |
|
|
|
dev_set_drvdata(&sdiodev->func1->dev, NULL); |
|
dev_set_drvdata(&sdiodev->func2->dev, NULL); |
|
|
|
kfree(bus_if); |
|
kfree(sdiodev); |
|
} |
|
|
|
brcmf_dbg(SDIO, "Exit\n"); |
|
} |
|
|
|
void brcmf_sdio_wowl_config(struct device *dev, bool enabled) |
|
{ |
|
struct brcmf_bus *bus_if = dev_get_drvdata(dev); |
|
struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio; |
|
|
|
brcmf_dbg(SDIO, "Configuring WOWL, enabled=%d\n", enabled); |
|
sdiodev->wowl_enabled = enabled; |
|
} |
|
|
|
#ifdef CONFIG_PM_SLEEP |
|
static int brcmf_ops_sdio_suspend(struct device *dev) |
|
{ |
|
struct sdio_func *func; |
|
struct brcmf_bus *bus_if; |
|
struct brcmf_sdio_dev *sdiodev; |
|
mmc_pm_flag_t pm_caps, sdio_flags; |
|
int ret = 0; |
|
|
|
func = container_of(dev, struct sdio_func, dev); |
|
brcmf_dbg(SDIO, "Enter: F%d\n", func->num); |
|
if (func->num != 1) |
|
return 0; |
|
|
|
|
|
bus_if = dev_get_drvdata(dev); |
|
sdiodev = bus_if->bus_priv.sdio; |
|
|
|
pm_caps = sdio_get_host_pm_caps(func); |
|
|
|
if (pm_caps & MMC_PM_KEEP_POWER) { |
|
/* preserve card power during suspend */ |
|
brcmf_sdiod_freezer_on(sdiodev); |
|
brcmf_sdio_wd_timer(sdiodev->bus, 0); |
|
|
|
sdio_flags = MMC_PM_KEEP_POWER; |
|
if (sdiodev->wowl_enabled) { |
|
if (sdiodev->settings->bus.sdio.oob_irq_supported) |
|
enable_irq_wake(sdiodev->settings->bus.sdio.oob_irq_nr); |
|
else |
|
sdio_flags |= MMC_PM_WAKE_SDIO_IRQ; |
|
} |
|
|
|
if (sdio_set_host_pm_flags(sdiodev->func1, sdio_flags)) |
|
brcmf_err("Failed to set pm_flags %x\n", sdio_flags); |
|
|
|
} else { |
|
/* power will be cut so remove device, probe again in resume */ |
|
brcmf_sdiod_intr_unregister(sdiodev); |
|
ret = brcmf_sdiod_remove(sdiodev); |
|
if (ret) |
|
brcmf_err("Failed to remove device on suspend\n"); |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static int brcmf_ops_sdio_resume(struct device *dev) |
|
{ |
|
struct brcmf_bus *bus_if = dev_get_drvdata(dev); |
|
struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio; |
|
struct sdio_func *func = container_of(dev, struct sdio_func, dev); |
|
mmc_pm_flag_t pm_caps = sdio_get_host_pm_caps(func); |
|
int ret = 0; |
|
|
|
brcmf_dbg(SDIO, "Enter: F%d\n", func->num); |
|
if (func->num != 2) |
|
return 0; |
|
|
|
if (!(pm_caps & MMC_PM_KEEP_POWER)) { |
|
/* bus was powered off and device removed, probe again */ |
|
ret = brcmf_sdiod_probe(sdiodev); |
|
if (ret) |
|
brcmf_err("Failed to probe device on resume\n"); |
|
} else { |
|
if (sdiodev->wowl_enabled && |
|
sdiodev->settings->bus.sdio.oob_irq_supported) |
|
disable_irq_wake(sdiodev->settings->bus.sdio.oob_irq_nr); |
|
|
|
brcmf_sdiod_freezer_off(sdiodev); |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static const struct dev_pm_ops brcmf_sdio_pm_ops = { |
|
.suspend = brcmf_ops_sdio_suspend, |
|
.resume = brcmf_ops_sdio_resume, |
|
}; |
|
#endif /* CONFIG_PM_SLEEP */ |
|
|
|
static struct sdio_driver brcmf_sdmmc_driver = { |
|
.probe = brcmf_ops_sdio_probe, |
|
.remove = brcmf_ops_sdio_remove, |
|
.name = KBUILD_MODNAME, |
|
.id_table = brcmf_sdmmc_ids, |
|
.drv = { |
|
.owner = THIS_MODULE, |
|
#ifdef CONFIG_PM_SLEEP |
|
.pm = &brcmf_sdio_pm_ops, |
|
#endif /* CONFIG_PM_SLEEP */ |
|
.coredump = brcmf_dev_coredump, |
|
}, |
|
}; |
|
|
|
int brcmf_sdio_register(void) |
|
{ |
|
return sdio_register_driver(&brcmf_sdmmc_driver); |
|
} |
|
|
|
void brcmf_sdio_exit(void) |
|
{ |
|
brcmf_dbg(SDIO, "Enter\n"); |
|
|
|
sdio_unregister_driver(&brcmf_sdmmc_driver); |
|
} |
|
|
|
|