diff options
Diffstat (limited to 'drivers/staging/wilc1000/sdio.c')
| -rw-r--r-- | drivers/staging/wilc1000/sdio.c | 1023 |
1 files changed, 0 insertions, 1023 deletions
diff --git a/drivers/staging/wilc1000/sdio.c b/drivers/staging/wilc1000/sdio.c deleted file mode 100644 index 36eb589263bf..000000000000 --- a/drivers/staging/wilc1000/sdio.c +++ /dev/null @@ -1,1023 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries. - * All rights reserved. - */ - -#include <linux/clk.h> -#include <linux/mmc/sdio_func.h> -#include <linux/mmc/host.h> -#include <linux/mmc/sdio.h> -#include <linux/of_irq.h> - -#include "netdev.h" -#include "cfg80211.h" - -#define SDIO_MODALIAS "wilc1000_sdio" - -#define SDIO_VENDOR_ID_WILC 0x0296 -#define SDIO_DEVICE_ID_WILC 0x5347 - -static const struct sdio_device_id wilc_sdio_ids[] = { - { SDIO_DEVICE(SDIO_VENDOR_ID_WILC, SDIO_DEVICE_ID_WILC) }, - { }, -}; - -#define WILC_SDIO_BLOCK_SIZE 512 - -struct wilc_sdio { - bool irq_gpio; - u32 block_size; - int has_thrpt_enh3; -}; - -struct sdio_cmd52 { - u32 read_write: 1; - u32 function: 3; - u32 raw: 1; - u32 address: 17; - u32 data: 8; -}; - -struct sdio_cmd53 { - u32 read_write: 1; - u32 function: 3; - u32 block_mode: 1; - u32 increment: 1; - u32 address: 17; - u32 count: 9; - u8 *buffer; - u32 block_size; -}; - -static const struct wilc_hif_func wilc_hif_sdio; - -static void wilc_sdio_interrupt(struct sdio_func *func) -{ - sdio_release_host(func); - wilc_handle_isr(sdio_get_drvdata(func)); - sdio_claim_host(func); -} - -static int wilc_sdio_cmd52(struct wilc *wilc, struct sdio_cmd52 *cmd) -{ - struct sdio_func *func = container_of(wilc->dev, struct sdio_func, dev); - int ret; - u8 data; - - sdio_claim_host(func); - - func->num = cmd->function; - if (cmd->read_write) { /* write */ - if (cmd->raw) { - sdio_writeb(func, cmd->data, cmd->address, &ret); - data = sdio_readb(func, cmd->address, &ret); - cmd->data = data; - } else { - sdio_writeb(func, cmd->data, cmd->address, &ret); - } - } else { /* read */ - data = sdio_readb(func, cmd->address, &ret); - cmd->data = data; - } - - sdio_release_host(func); - - if (ret) - dev_err(&func->dev, "%s..failed, err(%d)\n", __func__, ret); - return ret; -} - -static int wilc_sdio_cmd53(struct wilc *wilc, struct sdio_cmd53 *cmd) -{ - struct sdio_func *func = container_of(wilc->dev, struct sdio_func, dev); - int size, ret; - - sdio_claim_host(func); - - func->num = cmd->function; - func->cur_blksize = cmd->block_size; - if (cmd->block_mode) - size = cmd->count * cmd->block_size; - else - size = cmd->count; - - if (cmd->read_write) { /* write */ - ret = sdio_memcpy_toio(func, cmd->address, - (void *)cmd->buffer, size); - } else { /* read */ - ret = sdio_memcpy_fromio(func, (void *)cmd->buffer, - cmd->address, size); - } - - sdio_release_host(func); - - if (ret) - dev_err(&func->dev, "%s..failed, err(%d)\n", __func__, ret); - - return ret; -} - -static int wilc_sdio_probe(struct sdio_func *func, - const struct sdio_device_id *id) -{ - struct wilc *wilc; - int ret; - struct wilc_sdio *sdio_priv; - - sdio_priv = kzalloc(sizeof(*sdio_priv), GFP_KERNEL); - if (!sdio_priv) - return -ENOMEM; - - ret = wilc_cfg80211_init(&wilc, &func->dev, WILC_HIF_SDIO, - &wilc_hif_sdio); - if (ret) { - kfree(sdio_priv); - return ret; - } - - if (IS_ENABLED(CONFIG_WILC1000_HW_OOB_INTR)) { - struct device_node *np = func->card->dev.of_node; - int irq_num = of_irq_get(np, 0); - - if (irq_num > 0) { - wilc->dev_irq_num = irq_num; - sdio_priv->irq_gpio = true; - } - } - - sdio_set_drvdata(func, wilc); - wilc->bus_data = sdio_priv; - wilc->dev = &func->dev; - - wilc->rtc_clk = devm_clk_get(&func->card->dev, "rtc"); - if (PTR_ERR_OR_ZERO(wilc->rtc_clk) == -EPROBE_DEFER) - return -EPROBE_DEFER; - else if (!IS_ERR(wilc->rtc_clk)) - clk_prepare_enable(wilc->rtc_clk); - - dev_info(&func->dev, "Driver Initializing success\n"); - return 0; -} - -static void wilc_sdio_remove(struct sdio_func *func) -{ - struct wilc *wilc = sdio_get_drvdata(func); - - if (!IS_ERR(wilc->rtc_clk)) - clk_disable_unprepare(wilc->rtc_clk); - - wilc_netdev_cleanup(wilc); -} - -static int wilc_sdio_reset(struct wilc *wilc) -{ - struct sdio_cmd52 cmd; - int ret; - struct sdio_func *func = dev_to_sdio_func(wilc->dev); - - cmd.read_write = 1; - cmd.function = 0; - cmd.raw = 0; - cmd.address = SDIO_CCCR_ABORT; - cmd.data = WILC_SDIO_CCCR_ABORT_RESET; - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) { - dev_err(&func->dev, "Fail cmd 52, reset cmd ...\n"); - return ret; - } - return 0; -} - -static int wilc_sdio_suspend(struct device *dev) -{ - struct sdio_func *func = dev_to_sdio_func(dev); - struct wilc *wilc = sdio_get_drvdata(func); - int ret; - - dev_info(dev, "sdio suspend\n"); - chip_wakeup(wilc); - - if (!IS_ERR(wilc->rtc_clk)) - clk_disable_unprepare(wilc->rtc_clk); - - if (wilc->suspend_event) { - host_sleep_notify(wilc); - chip_allow_sleep(wilc); - } - - ret = wilc_sdio_reset(wilc); - if (ret) { - dev_err(&func->dev, "Fail reset sdio\n"); - return ret; - } - sdio_claim_host(func); - - return 0; -} - -static int wilc_sdio_enable_interrupt(struct wilc *dev) -{ - struct sdio_func *func = container_of(dev->dev, struct sdio_func, dev); - int ret = 0; - - sdio_claim_host(func); - ret = sdio_claim_irq(func, wilc_sdio_interrupt); - sdio_release_host(func); - - if (ret < 0) { - dev_err(&func->dev, "can't claim sdio_irq, err(%d)\n", ret); - ret = -EIO; - } - return ret; -} - -static void wilc_sdio_disable_interrupt(struct wilc *dev) -{ - struct sdio_func *func = container_of(dev->dev, struct sdio_func, dev); - int ret; - - sdio_claim_host(func); - ret = sdio_release_irq(func); - if (ret < 0) - dev_err(&func->dev, "can't release sdio_irq, err(%d)\n", ret); - sdio_release_host(func); -} - -/******************************************** - * - * Function 0 - * - ********************************************/ - -static int wilc_sdio_set_func0_csa_address(struct wilc *wilc, u32 adr) -{ - struct sdio_func *func = dev_to_sdio_func(wilc->dev); - struct sdio_cmd52 cmd; - int ret; - - /** - * Review: BIG ENDIAN - **/ - cmd.read_write = 1; - cmd.function = 0; - cmd.raw = 0; - cmd.address = WILC_SDIO_FBR_CSA_REG; - cmd.data = (u8)adr; - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) { - dev_err(&func->dev, "Failed cmd52, set %04x data...\n", - cmd.address); - return ret; - } - - cmd.address = WILC_SDIO_FBR_CSA_REG + 1; - cmd.data = (u8)(adr >> 8); - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) { - dev_err(&func->dev, "Failed cmd52, set %04x data...\n", - cmd.address); - return ret; - } - - cmd.address = WILC_SDIO_FBR_CSA_REG + 2; - cmd.data = (u8)(adr >> 16); - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) { - dev_err(&func->dev, "Failed cmd52, set %04x data...\n", - cmd.address); - return ret; - } - - return 0; -} - -static int wilc_sdio_set_block_size(struct wilc *wilc, u8 func_num, - u32 block_size) -{ - struct sdio_func *func = dev_to_sdio_func(wilc->dev); - struct sdio_cmd52 cmd; - int ret; - - cmd.read_write = 1; - cmd.function = 0; - cmd.raw = 0; - cmd.address = SDIO_FBR_BASE(func_num) + SDIO_CCCR_BLKSIZE; - cmd.data = (u8)block_size; - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) { - dev_err(&func->dev, "Failed cmd52, set %04x data...\n", - cmd.address); - return ret; - } - - cmd.address = SDIO_FBR_BASE(func_num) + SDIO_CCCR_BLKSIZE + 1; - cmd.data = (u8)(block_size >> 8); - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) { - dev_err(&func->dev, "Failed cmd52, set %04x data...\n", - cmd.address); - return ret; - } - - return 0; -} - -/******************************************** - * - * Sdio interfaces - * - ********************************************/ -static int wilc_sdio_write_reg(struct wilc *wilc, u32 addr, u32 data) -{ - struct sdio_func *func = dev_to_sdio_func(wilc->dev); - struct wilc_sdio *sdio_priv = wilc->bus_data; - int ret; - - cpu_to_le32s(&data); - - if (addr >= 0xf0 && addr <= 0xff) { /* only vendor specific registers */ - struct sdio_cmd52 cmd; - - cmd.read_write = 1; - cmd.function = 0; - cmd.raw = 0; - cmd.address = addr; - cmd.data = data; - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) - dev_err(&func->dev, - "Failed cmd 52, read reg (%08x) ...\n", addr); - } else { - struct sdio_cmd53 cmd; - - /** - * set the AHB address - **/ - ret = wilc_sdio_set_func0_csa_address(wilc, addr); - if (ret) - return ret; - - cmd.read_write = 1; - cmd.function = 0; - cmd.address = WILC_SDIO_FBR_DATA_REG; - cmd.block_mode = 0; - cmd.increment = 1; - cmd.count = 4; - cmd.buffer = (u8 *)&data; - cmd.block_size = sdio_priv->block_size; - ret = wilc_sdio_cmd53(wilc, &cmd); - if (ret) - dev_err(&func->dev, - "Failed cmd53, write reg (%08x)...\n", addr); - } - - return ret; -} - -static int wilc_sdio_write(struct wilc *wilc, u32 addr, u8 *buf, u32 size) -{ - struct sdio_func *func = dev_to_sdio_func(wilc->dev); - struct wilc_sdio *sdio_priv = wilc->bus_data; - u32 block_size = sdio_priv->block_size; - struct sdio_cmd53 cmd; - int nblk, nleft, ret; - - cmd.read_write = 1; - if (addr > 0) { - /** - * func 0 access - **/ - cmd.function = 0; - cmd.address = WILC_SDIO_FBR_DATA_REG; - } else { - /** - * func 1 access - **/ - cmd.function = 1; - cmd.address = WILC_SDIO_F1_DATA_REG; - } - - size = ALIGN(size, 4); - nblk = size / block_size; - nleft = size % block_size; - - if (nblk > 0) { - cmd.block_mode = 1; - cmd.increment = 1; - cmd.count = nblk; - cmd.buffer = buf; - cmd.block_size = block_size; - if (addr > 0) { - ret = wilc_sdio_set_func0_csa_address(wilc, addr); - if (ret) - return ret; - } - ret = wilc_sdio_cmd53(wilc, &cmd); - if (ret) { - dev_err(&func->dev, - "Failed cmd53 [%x], block send...\n", addr); - return ret; - } - if (addr > 0) - addr += nblk * block_size; - buf += nblk * block_size; - } - - if (nleft > 0) { - cmd.block_mode = 0; - cmd.increment = 1; - cmd.count = nleft; - cmd.buffer = buf; - - cmd.block_size = block_size; - - if (addr > 0) { - ret = wilc_sdio_set_func0_csa_address(wilc, addr); - if (ret) - return ret; - } - ret = wilc_sdio_cmd53(wilc, &cmd); - if (ret) { - dev_err(&func->dev, - "Failed cmd53 [%x], bytes send...\n", addr); - return ret; - } - } - - return 0; -} - -static int wilc_sdio_read_reg(struct wilc *wilc, u32 addr, u32 *data) -{ - struct sdio_func *func = dev_to_sdio_func(wilc->dev); - struct wilc_sdio *sdio_priv = wilc->bus_data; - int ret; - - if (addr >= 0xf0 && addr <= 0xff) { /* only vendor specific registers */ - struct sdio_cmd52 cmd; - - cmd.read_write = 0; - cmd.function = 0; - cmd.raw = 0; - cmd.address = addr; - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) { - dev_err(&func->dev, - "Failed cmd 52, read reg (%08x) ...\n", addr); - return ret; - } - *data = cmd.data; - } else { - struct sdio_cmd53 cmd; - - ret = wilc_sdio_set_func0_csa_address(wilc, addr); - if (ret) - return ret; - - cmd.read_write = 0; - cmd.function = 0; - cmd.address = WILC_SDIO_FBR_DATA_REG; - cmd.block_mode = 0; - cmd.increment = 1; - cmd.count = 4; - cmd.buffer = (u8 *)data; - - cmd.block_size = sdio_priv->block_size; - ret = wilc_sdio_cmd53(wilc, &cmd); - if (ret) { - dev_err(&func->dev, - "Failed cmd53, read reg (%08x)...\n", addr); - return ret; - } - } - - le32_to_cpus(data); - return 0; -} - -static int wilc_sdio_read(struct wilc *wilc, u32 addr, u8 *buf, u32 size) -{ - struct sdio_func *func = dev_to_sdio_func(wilc->dev); - struct wilc_sdio *sdio_priv = wilc->bus_data; - u32 block_size = sdio_priv->block_size; - struct sdio_cmd53 cmd; - int nblk, nleft, ret; - - cmd.read_write = 0; - if (addr > 0) { - /** - * func 0 access - **/ - cmd.function = 0; - cmd.address = WILC_SDIO_FBR_DATA_REG; - } else { - /** - * func 1 access - **/ - cmd.function = 1; - cmd.address = WILC_SDIO_F1_DATA_REG; - } - - size = ALIGN(size, 4); - nblk = size / block_size; - nleft = size % block_size; - - if (nblk > 0) { - cmd.block_mode = 1; - cmd.increment = 1; - cmd.count = nblk; - cmd.buffer = buf; - cmd.block_size = block_size; - if (addr > 0) { - ret = wilc_sdio_set_func0_csa_address(wilc, addr); - if (ret) - return ret; - } - ret = wilc_sdio_cmd53(wilc, &cmd); - if (ret) { - dev_err(&func->dev, - "Failed cmd53 [%x], block read...\n", addr); - return ret; - } - if (addr > 0) - addr += nblk * block_size; - buf += nblk * block_size; - } /* if (nblk > 0) */ - - if (nleft > 0) { - cmd.block_mode = 0; - cmd.increment = 1; - cmd.count = nleft; - cmd.buffer = buf; - - cmd.block_size = block_size; - - if (addr > 0) { - ret = wilc_sdio_set_func0_csa_address(wilc, addr); - if (ret) - return ret; - } - ret = wilc_sdio_cmd53(wilc, &cmd); - if (ret) { - dev_err(&func->dev, - "Failed cmd53 [%x], bytes read...\n", addr); - return ret; - } - } - - return 0; -} - -/******************************************** - * - * Bus interfaces - * - ********************************************/ - -static int wilc_sdio_deinit(struct wilc *wilc) -{ - return 0; -} - -static int wilc_sdio_init(struct wilc *wilc, bool resume) -{ - struct sdio_func *func = dev_to_sdio_func(wilc->dev); - struct wilc_sdio *sdio_priv = wilc->bus_data; - struct sdio_cmd52 cmd; - int loop, ret; - u32 chipid; - - /** - * function 0 csa enable - **/ - cmd.read_write = 1; - cmd.function = 0; - cmd.raw = 1; - cmd.address = SDIO_FBR_BASE(func->num); - cmd.data = SDIO_FBR_ENABLE_CSA; - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) { - dev_err(&func->dev, "Fail cmd 52, enable csa...\n"); - return ret; - } - - /** - * function 0 block size - **/ - ret = wilc_sdio_set_block_size(wilc, 0, WILC_SDIO_BLOCK_SIZE); - if (ret) { - dev_err(&func->dev, "Fail cmd 52, set func 0 block size...\n"); - return ret; - } - sdio_priv->block_size = WILC_SDIO_BLOCK_SIZE; - - /** - * enable func1 IO - **/ - cmd.read_write = 1; - cmd.function = 0; - cmd.raw = 1; - cmd.address = SDIO_CCCR_IOEx; - cmd.data = WILC_SDIO_CCCR_IO_EN_FUNC1; - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) { - dev_err(&func->dev, - "Fail cmd 52, set IOE register...\n"); - return ret; - } - - /** - * make sure func 1 is up - **/ - cmd.read_write = 0; - cmd.function = 0; - cmd.raw = 0; - cmd.address = SDIO_CCCR_IORx; - loop = 3; - do { - cmd.data = 0; - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) { - dev_err(&func->dev, - "Fail cmd 52, get IOR register...\n"); - return ret; - } - if (cmd.data == WILC_SDIO_CCCR_IO_EN_FUNC1) - break; - } while (loop--); - - if (loop <= 0) { - dev_err(&func->dev, "Fail func 1 is not ready...\n"); - return -EINVAL; - } - - /** - * func 1 is ready, set func 1 block size - **/ - ret = wilc_sdio_set_block_size(wilc, 1, WILC_SDIO_BLOCK_SIZE); - if (ret) { - dev_err(&func->dev, "Fail set func 1 block size...\n"); - return ret; - } - - /** - * func 1 interrupt enable - **/ - cmd.read_write = 1; - cmd.function = 0; - cmd.raw = 1; - cmd.address = SDIO_CCCR_IENx; - cmd.data = WILC_SDIO_CCCR_IEN_MASTER | WILC_SDIO_CCCR_IEN_FUNC1; - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) { - dev_err(&func->dev, "Fail cmd 52, set IEN register...\n"); - return ret; - } - - /** - * make sure can read back chip id correctly - **/ - if (!resume) { - int rev; - - ret = wilc_sdio_read_reg(wilc, WILC_CHIPID, &chipid); - if (ret) { - dev_err(&func->dev, "Fail cmd read chip id...\n"); - return ret; - } - dev_err(&func->dev, "chipid (%08x)\n", chipid); - rev = FIELD_GET(WILC_CHIP_REV_FIELD, chipid); - if (rev > FIELD_GET(WILC_CHIP_REV_FIELD, WILC_1000_BASE_ID_2A)) - sdio_priv->has_thrpt_enh3 = 1; - else - sdio_priv->has_thrpt_enh3 = 0; - dev_info(&func->dev, "has_thrpt_enh3 = %d...\n", - sdio_priv->has_thrpt_enh3); - } - - return 0; -} - -static int wilc_sdio_read_size(struct wilc *wilc, u32 *size) -{ - u32 tmp; - struct sdio_cmd52 cmd; - - /** - * Read DMA count in words - **/ - cmd.read_write = 0; - cmd.function = 0; - cmd.raw = 0; - cmd.address = WILC_SDIO_INTERRUPT_DATA_SZ_REG; - cmd.data = 0; - wilc_sdio_cmd52(wilc, &cmd); - tmp = cmd.data; - - cmd.address = WILC_SDIO_INTERRUPT_DATA_SZ_REG + 1; - cmd.data = 0; - wilc_sdio_cmd52(wilc, &cmd); - tmp |= (cmd.data << 8); - - *size = tmp; - return 0; -} - -static int wilc_sdio_read_int(struct wilc *wilc, u32 *int_status) -{ - struct sdio_func *func = dev_to_sdio_func(wilc->dev); - struct wilc_sdio *sdio_priv = wilc->bus_data; - u32 tmp; - u8 irq_flags; - struct sdio_cmd52 cmd; - - wilc_sdio_read_size(wilc, &tmp); - - /** - * Read IRQ flags - **/ - if (!sdio_priv->irq_gpio) { - cmd.function = 1; - cmd.address = WILC_SDIO_EXT_IRQ_FLAG_REG; - } else { - cmd.function = 0; - cmd.address = WILC_SDIO_IRQ_FLAG_REG; - } - cmd.raw = 0; - cmd.read_write = 0; - cmd.data = 0; - wilc_sdio_cmd52(wilc, &cmd); - irq_flags = cmd.data; - tmp |= FIELD_PREP(IRG_FLAGS_MASK, cmd.data); - - if (FIELD_GET(UNHANDLED_IRQ_MASK, irq_flags)) - dev_err(&func->dev, "Unexpected interrupt (1) int=%lx\n", - FIELD_GET(UNHANDLED_IRQ_MASK, irq_flags)); - - *int_status = tmp; - - return 0; -} - -static int wilc_sdio_clear_int_ext(struct wilc *wilc, u32 val) -{ - struct sdio_func *func = dev_to_sdio_func(wilc->dev); - struct wilc_sdio *sdio_priv = wilc->bus_data; - int ret; - int vmm_ctl; - - if (sdio_priv->has_thrpt_enh3) { - u32 reg = 0; - - if (sdio_priv->irq_gpio) - reg = val & (BIT(MAX_NUM_INT) - 1); - - /* select VMM table 0 */ - if (val & SEL_VMM_TBL0) - reg |= BIT(5); - /* select VMM table 1 */ - if (val & SEL_VMM_TBL1) - reg |= BIT(6); - /* enable VMM */ - if (val & EN_VMM) - reg |= BIT(7); - if (reg) { - struct sdio_cmd52 cmd; - - cmd.read_write = 1; - cmd.function = 0; - cmd.raw = 0; - cmd.address = WILC_SDIO_IRQ_CLEAR_FLAG_REG; - cmd.data = reg; - - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) { - dev_err(&func->dev, - "Failed cmd52, set (%02x) data (%d) ...\n", - cmd.address, __LINE__); - return ret; - } - } - return 0; - } - if (sdio_priv->irq_gpio) { - /* has_thrpt_enh2 uses register 0xf8 to clear interrupts. */ - /* - * Cannot clear multiple interrupts. - * Must clear each interrupt individually. - */ - u32 flags; - int i; - - flags = val & (BIT(MAX_NUM_INT) - 1); - for (i = 0; i < NUM_INT_EXT && flags; i++) { - if (flags & BIT(i)) { - struct sdio_cmd52 cmd; - - cmd.read_write = 1; - cmd.function = 0; - cmd.raw = 0; - cmd.address = WILC_SDIO_IRQ_CLEAR_FLAG_REG; - cmd.data = BIT(i); - - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) { - dev_err(&func->dev, - "Failed cmd52, set (%02x) data (%d) ...\n", - cmd.address, __LINE__); - return ret; - } - flags &= ~BIT(i); - } - } - - for (i = NUM_INT_EXT; i < MAX_NUM_INT && flags; i++) { - if (flags & BIT(i)) { - dev_err(&func->dev, - "Unexpected interrupt cleared %d...\n", - i); - flags &= ~BIT(i); - } - } - } - - vmm_ctl = 0; - /* select VMM table 0 */ - if (val & SEL_VMM_TBL0) - vmm_ctl |= BIT(0); - /* select VMM table 1 */ - if (val & SEL_VMM_TBL1) - vmm_ctl |= BIT(1); - /* enable VMM */ - if (val & EN_VMM) - vmm_ctl |= BIT(2); - - if (vmm_ctl) { - struct sdio_cmd52 cmd; - - cmd.read_write = 1; - cmd.function = 0; - cmd.raw = 0; - cmd.address = WILC_SDIO_VMM_TBL_CTRL_REG; - cmd.data = vmm_ctl; - ret = wilc_sdio_cmd52(wilc, &cmd); - if (ret) { - dev_err(&func->dev, - "Failed cmd52, set (%02x) data (%d) ...\n", - cmd.address, __LINE__); - return ret; - } - } - return 0; -} - -static int wilc_sdio_sync_ext(struct wilc *wilc, int nint) -{ - struct sdio_func *func = dev_to_sdio_func(wilc->dev); - struct wilc_sdio *sdio_priv = wilc->bus_data; - u32 reg; - - if (nint > MAX_NUM_INT) { - dev_err(&func->dev, "Too many interrupts (%d)...\n", nint); - return -EINVAL; - } - - /** - * Disable power sequencer - **/ - if (wilc_sdio_read_reg(wilc, WILC_MISC, ®)) { - dev_err(&func->dev, "Failed read misc reg...\n"); - return -EINVAL; - } - - reg &= ~BIT(8); - if (wilc_sdio_write_reg(wilc, WILC_MISC, reg)) { - dev_err(&func->dev, "Failed write misc reg...\n"); - return -EINVAL; - } - - if (sdio_priv->irq_gpio) { - u32 reg; - int ret, i; - - /** - * interrupt pin mux select - **/ - ret = wilc_sdio_read_reg(wilc, WILC_PIN_MUX_0, ®); - if (ret) { - dev_err(&func->dev, "Failed read reg (%08x)...\n", - WILC_PIN_MUX_0); - return ret; - } - reg |= BIT(8); - ret = wilc_sdio_write_reg(wilc, WILC_PIN_MUX_0, reg); - if (ret) { - dev_err(&func->dev, "Failed write reg (%08x)...\n", - WILC_PIN_MUX_0); - return ret; - } - - /** - * interrupt enable - **/ - ret = wilc_sdio_read_reg(wilc, WILC_INTR_ENABLE, ®); - if (ret) { - dev_err(&func->dev, "Failed read reg (%08x)...\n", - WILC_INTR_ENABLE); - return ret; - } - - for (i = 0; (i < 5) && (nint > 0); i++, nint--) - reg |= BIT((27 + i)); - ret = wilc_sdio_write_reg(wilc, WILC_INTR_ENABLE, reg); - if (ret) { - dev_err(&func->dev, "Failed write reg (%08x)...\n", - WILC_INTR_ENABLE); - return ret; - } - if (nint) { - ret = wilc_sdio_read_reg(wilc, WILC_INTR2_ENABLE, ®); - if (ret) { - dev_err(&func->dev, - "Failed read reg (%08x)...\n", - WILC_INTR2_ENABLE); - return ret; - } - - for (i = 0; (i < 3) && (nint > 0); i++, nint--) - reg |= BIT(i); - - ret = wilc_sdio_read_reg(wilc, WILC_INTR2_ENABLE, ®); - if (ret) { - dev_err(&func->dev, - "Failed write reg (%08x)...\n", - WILC_INTR2_ENABLE); - return ret; - } - } - } - return 0; -} - -/* Global sdio HIF function table */ -static const struct wilc_hif_func wilc_hif_sdio = { - .hif_init = wilc_sdio_init, - .hif_deinit = wilc_sdio_deinit, - .hif_read_reg = wilc_sdio_read_reg, - .hif_write_reg = wilc_sdio_write_reg, - .hif_block_rx = wilc_sdio_read, - .hif_block_tx = wilc_sdio_write, - .hif_read_int = wilc_sdio_read_int, - .hif_clear_int_ext = wilc_sdio_clear_int_ext, - .hif_read_size = wilc_sdio_read_size, - .hif_block_tx_ext = wilc_sdio_write, - .hif_block_rx_ext = wilc_sdio_read, - .hif_sync_ext = wilc_sdio_sync_ext, - .enable_interrupt = wilc_sdio_enable_interrupt, - .disable_interrupt = wilc_sdio_disable_interrupt, -}; - -static int wilc_sdio_resume(struct device *dev) -{ - struct sdio_func *func = dev_to_sdio_func(dev); - struct wilc *wilc = sdio_get_drvdata(func); - - dev_info(dev, "sdio resume\n"); - sdio_release_host(func); - chip_wakeup(wilc); - wilc_sdio_init(wilc, true); - - if (wilc->suspend_event) - host_wakeup_notify(wilc); - - chip_allow_sleep(wilc); - - return 0; -} - -static const struct of_device_id wilc_of_match[] = { - { .compatible = "microchip,wilc1000", }, - { /* sentinel */ } -}; -MODULE_DEVICE_TABLE(of, wilc_of_match); - -static const struct dev_pm_ops wilc_sdio_pm_ops = { - .suspend = wilc_sdio_suspend, - .resume = wilc_sdio_resume, -}; - -static struct sdio_driver wilc_sdio_driver = { - .name = SDIO_MODALIAS, - .id_table = wilc_sdio_ids, - .probe = wilc_sdio_probe, - .remove = wilc_sdio_remove, - .drv = { - .pm = &wilc_sdio_pm_ops, - .of_match_table = wilc_of_match, - } -}; -module_driver(wilc_sdio_driver, - sdio_register_driver, - sdio_unregister_driver); -MODULE_LICENSE("GPL"); |