From: Dominik Brodowski Date: Sat, 24 Jul 2010 10:23:21 +0000 (+0200) Subject: pcmcia: use pcmica_{read,write}_config_byte X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1d5cc192d431bce2ebe9fde64054ce903200e179;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git pcmcia: use pcmica_{read,write}_config_byte Use pcmcia_read_config_byte and pcmcia_write_config_byte instead of pcmcia_access_configuration_register. CC: netdev@vger.kernel.org CC: linux-wireless@vger.kernel.org CC: linux-serial@vger.kernel.org CC: Michael Buesch Signed-off-by: Dominik Brodowski --- diff --git a/drivers/net/pcmcia/axnet_cs.c b/drivers/net/pcmcia/axnet_cs.c index 467fd4bfb2bd..ee0a6d036f94 100644 --- a/drivers/net/pcmcia/axnet_cs.c +++ b/drivers/net/pcmcia/axnet_cs.c @@ -378,8 +378,7 @@ static int axnet_config(struct pcmcia_device *link) /* Maybe PHY is in power down mode. (PPD_SET = 1) Bit 2 of CCSR is active low. */ if (i == 32) { - conf_reg_t reg = { 0, CS_WRITE, CISREG_CCSR, 0x04 }; - pcmcia_access_configuration_register(link, ®); + pcmcia_write_config_byte(link, CISREG_CCSR, 0x04); for (i = 0; i < 32; i++) { j = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 1); j2 = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 2); diff --git a/drivers/net/pcmcia/nmclan_cs.c b/drivers/net/pcmcia/nmclan_cs.c index c0eacfae1512..c0d85af3e942 100644 --- a/drivers/net/pcmcia/nmclan_cs.c +++ b/drivers/net/pcmcia/nmclan_cs.c @@ -757,29 +757,20 @@ static void nmclan_reset(struct net_device *dev) #if RESET_XILINX struct pcmcia_device *link = &lp->link; - conf_reg_t reg; - u_long OrigCorValue; + u8 OrigCorValue; /* Save original COR value */ - reg.Function = 0; - reg.Action = CS_READ; - reg.Offset = CISREG_COR; - reg.Value = 0; - pcmcia_access_configuration_register(link, ®); - OrigCorValue = reg.Value; + pcmcia_read_config_byte(link, CISREG_COR, &OrigCorValue); /* Reset Xilinx */ - reg.Action = CS_WRITE; - reg.Offset = CISREG_COR; - dev_dbg(&link->dev, "nmclan_reset: OrigCorValue=0x%lX, resetting...\n", + dev_dbg(&link->dev, "nmclan_reset: OrigCorValue=0x%x, resetting...\n", OrigCorValue); - reg.Value = COR_SOFT_RESET; - pcmcia_access_configuration_register(link, ®); + pcmcia_write_config_byte(link, CISREG_COR, COR_SOFT_RESET); /* Need to wait for 20 ms for PCMCIA to finish reset. */ /* Restore original COR configuration index */ - reg.Value = COR_LEVEL_REQ | (OrigCorValue & COR_CONFIG_MASK); - pcmcia_access_configuration_register(link, ®); + pcmcia_write_config_byte(link, CISREG_COR, + (COR_LEVEL_REQ | (OrigCorValue & COR_CONFIG_MASK))); /* Xilinx is now completely reset along with the MACE chip. */ lp->tx_free_frames=AM2150_MAX_TX_FRAMES; diff --git a/drivers/net/pcmcia/xirc2ps_cs.c b/drivers/net/pcmcia/xirc2ps_cs.c index a7662f0832eb..e3a85ce89880 100644 --- a/drivers/net/pcmcia/xirc2ps_cs.c +++ b/drivers/net/pcmcia/xirc2ps_cs.c @@ -869,7 +869,6 @@ xirc2ps_config(struct pcmcia_device * link) goto config_error; if (local->dingo) { - conf_reg_t reg; win_req_t req; memreq_t mem; @@ -878,15 +877,14 @@ xirc2ps_config(struct pcmcia_device * link) * the base address of the ethernet port (BasePort1) is written * to the BAR registers of the modem. */ - reg.Action = CS_WRITE; - reg.Offset = CISREG_IOBASE_0; - reg.Value = link->io.BasePort2 & 0xff; - if ((err = pcmcia_access_configuration_register(link, ®))) + err = pcmcia_write_config_byte(link, CISREG_IOBASE_0, + link->io.BasePort2 & 0xff); + if (err) goto config_error; - reg.Action = CS_WRITE; - reg.Offset = CISREG_IOBASE_1; - reg.Value = (link->io.BasePort2 >> 8) & 0xff; - if ((err = pcmcia_access_configuration_register(link, ®))) + + err = pcmcia_write_config_byte(link, CISREG_IOBASE_1, + (link->io.BasePort2 >> 8) & 0xff); + if (err) goto config_error; /* There is no config entry for the Ethernet part which diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c index 2f4b6d4350ab..691293675a93 100644 --- a/drivers/net/wireless/hostap/hostap_cs.c +++ b/drivers/net/wireless/hostap/hostap_cs.c @@ -224,27 +224,18 @@ static int prism2_pccard_card_present(local_info_t *local) static void sandisk_set_iobase(local_info_t *local) { int res; - conf_reg_t reg; struct hostap_cs_priv *hw_priv = local->hw_priv; - reg.Function = 0; - reg.Action = CS_WRITE; - reg.Offset = 0x10; /* 0x3f0 IO base 1 */ - reg.Value = hw_priv->link->io.BasePort1 & 0x00ff; - res = pcmcia_access_configuration_register(hw_priv->link, - ®); + res = pcmcia_write_config_byte(hw_priv->link, 0x10, + hw_priv->link->io.BasePort1 & 0x00ff); if (res != 0) { printk(KERN_DEBUG "Prism3 SanDisk - failed to set I/O base 0 -" " res=%d\n", res); } udelay(10); - reg.Function = 0; - reg.Action = CS_WRITE; - reg.Offset = 0x12; /* 0x3f2 IO base 2 */ - reg.Value = (hw_priv->link->io.BasePort1 & 0xff00) >> 8; - res = pcmcia_access_configuration_register(hw_priv->link, - ®); + res = pcmcia_write_config_byte(hw_priv->link, 0x12, + (hw_priv->link->io.BasePort1 >> 8) & 0x00ff); if (res != 0) { printk(KERN_DEBUG "Prism3 SanDisk - failed to set I/O base 1 -" " res=%d\n", res); @@ -270,7 +261,6 @@ static void sandisk_write_hcr(local_info_t *local, int hcr) static int sandisk_enable_wireless(struct net_device *dev) { int res, ret = 0; - conf_reg_t reg; struct hostap_interface *iface = netdev_priv(dev); local_info_t *local = iface->local; struct hostap_cs_priv *hw_priv = local->hw_priv; @@ -297,12 +287,8 @@ static int sandisk_enable_wireless(struct net_device *dev) " - using vendor-specific initialization\n", dev->name); hw_priv->sandisk_connectplus = 1; - reg.Function = 0; - reg.Action = CS_WRITE; - reg.Offset = CISREG_COR; - reg.Value = COR_SOFT_RESET; - res = pcmcia_access_configuration_register(hw_priv->link, - ®); + res = pcmcia_write_config_byte(hw_priv->link, CISREG_COR, + COR_SOFT_RESET); if (res != 0) { printk(KERN_DEBUG "%s: SanDisk - COR sreset failed (%d)\n", dev->name, res); @@ -310,16 +296,13 @@ static int sandisk_enable_wireless(struct net_device *dev) } mdelay(5); - reg.Function = 0; - reg.Action = CS_WRITE; - reg.Offset = CISREG_COR; /* * Do not enable interrupts here to avoid some bogus events. Interrupts * will be enabled during the first cor_sreset call. */ - reg.Value = COR_LEVEL_REQ | 0x8 | COR_ADDR_DECODE | COR_FUNC_ENA; - res = pcmcia_access_configuration_register(hw_priv->link, - ®); + res = pcmcia_write_config_byte(hw_priv->link, CISREG_COR, + (COR_LEVEL_REQ | 0x8 | COR_ADDR_DECODE | + COR_FUNC_ENA)); if (res != 0) { printk(KERN_DEBUG "%s: SanDisk - COR sreset failed (%d)\n", dev->name, res); @@ -342,30 +325,23 @@ done: static void prism2_pccard_cor_sreset(local_info_t *local) { int res; - conf_reg_t reg; + u8 val; struct hostap_cs_priv *hw_priv = local->hw_priv; if (!prism2_pccard_card_present(local)) return; - reg.Function = 0; - reg.Action = CS_READ; - reg.Offset = CISREG_COR; - reg.Value = 0; - res = pcmcia_access_configuration_register(hw_priv->link, - ®); + res = pcmcia_read_config_byte(hw_priv->link, CISREG_COR, &val); if (res != 0) { printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 1 (%d)\n", res); return; } printk(KERN_DEBUG "prism2_pccard_cor_sreset: original COR %02x\n", - reg.Value); + val); - reg.Action = CS_WRITE; - reg.Value |= COR_SOFT_RESET; - res = pcmcia_access_configuration_register(hw_priv->link, - ®); + val |= COR_SOFT_RESET; + res = pcmcia_write_config_byte(hw_priv->link, CISREG_COR, val); if (res != 0) { printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 2 (%d)\n", res); @@ -374,11 +350,10 @@ static void prism2_pccard_cor_sreset(local_info_t *local) mdelay(hw_priv->sandisk_connectplus ? 5 : 2); - reg.Value &= ~COR_SOFT_RESET; + val &= ~COR_SOFT_RESET; if (hw_priv->sandisk_connectplus) - reg.Value |= COR_IREQ_ENA; - res = pcmcia_access_configuration_register(hw_priv->link, - ®); + val |= COR_IREQ_ENA; + res = pcmcia_write_config_byte(hw_priv->link, CISREG_COR, val); if (res != 0) { printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 3 (%d)\n", res); @@ -395,8 +370,7 @@ static void prism2_pccard_cor_sreset(local_info_t *local) static void prism2_pccard_genesis_reset(local_info_t *local, int hcr) { int res; - conf_reg_t reg; - int old_cor; + u8 old_cor; struct hostap_cs_priv *hw_priv = local->hw_priv; if (!prism2_pccard_card_present(local)) @@ -407,25 +381,17 @@ static void prism2_pccard_genesis_reset(local_info_t *local, int hcr) return; } - reg.Function = 0; - reg.Action = CS_READ; - reg.Offset = CISREG_COR; - reg.Value = 0; - res = pcmcia_access_configuration_register(hw_priv->link, - ®); + res = pcmcia_read_config_byte(hw_priv->link, CISREG_COR, &old_cor); if (res != 0) { printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 1 " "(%d)\n", res); return; } printk(KERN_DEBUG "prism2_pccard_genesis_sreset: original COR %02x\n", - reg.Value); - old_cor = reg.Value; + old_cor); - reg.Action = CS_WRITE; - reg.Value |= COR_SOFT_RESET; - res = pcmcia_access_configuration_register(hw_priv->link, - ®); + res = pcmcia_write_config_byte(hw_priv->link, CISREG_COR, + old_cor | COR_SOFT_RESET); if (res != 0) { printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 2 " "(%d)\n", res); @@ -435,11 +401,7 @@ static void prism2_pccard_genesis_reset(local_info_t *local, int hcr) mdelay(10); /* Setup Genesis mode */ - reg.Action = CS_WRITE; - reg.Value = hcr; - reg.Offset = CISREG_CCSR; - res = pcmcia_access_configuration_register(hw_priv->link, - ®); + res = pcmcia_write_config_byte(hw_priv->link, CISREG_CCSR, hcr); if (res != 0) { printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 3 " "(%d)\n", res); @@ -447,11 +409,8 @@ static void prism2_pccard_genesis_reset(local_info_t *local, int hcr) } mdelay(10); - reg.Action = CS_WRITE; - reg.Offset = CISREG_COR; - reg.Value = old_cor & ~COR_SOFT_RESET; - res = pcmcia_access_configuration_register(hw_priv->link, - ®); + res = pcmcia_write_config_byte(hw_priv->link, CISREG_COR, + old_cor & ~COR_SOFT_RESET); if (res != 0) { printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 4 " "(%d)\n", res); diff --git a/drivers/net/wireless/orinoco/spectrum_cs.c b/drivers/net/wireless/orinoco/spectrum_cs.c index cad30e499dba..39399cd2e683 100644 --- a/drivers/net/wireless/orinoco/spectrum_cs.c +++ b/drivers/net/wireless/orinoco/spectrum_cs.c @@ -79,35 +79,27 @@ static int spectrum_reset(struct pcmcia_device *link, int idle) { int ret; - conf_reg_t reg; - u_int save_cor; + u8 save_cor; + u8 ccsr; /* Doing it if hardware is gone is guaranteed crash */ if (!pcmcia_dev_present(link)) return -ENODEV; /* Save original COR value */ - reg.Function = 0; - reg.Action = CS_READ; - reg.Offset = CISREG_COR; - ret = pcmcia_access_configuration_register(link, ®); + ret = pcmcia_read_config_byte(link, CISREG_COR, &save_cor); if (ret) goto failed; - save_cor = reg.Value; /* Soft-Reset card */ - reg.Action = CS_WRITE; - reg.Offset = CISREG_COR; - reg.Value = (save_cor | COR_SOFT_RESET); - ret = pcmcia_access_configuration_register(link, ®); + ret = pcmcia_write_config_byte(link, CISREG_COR, + (save_cor | COR_SOFT_RESET)); if (ret) goto failed; udelay(1000); /* Read CCSR */ - reg.Action = CS_READ; - reg.Offset = CISREG_CCSR; - ret = pcmcia_access_configuration_register(link, ®); + ret = pcmcia_read_config_byte(link, CISREG_CCSR, &ccsr); if (ret) goto failed; @@ -115,19 +107,15 @@ spectrum_reset(struct pcmcia_device *link, int idle) * Start or stop the firmware. Memory width bit should be * preserved from the value we've just read. */ - reg.Action = CS_WRITE; - reg.Offset = CISREG_CCSR; - reg.Value = (idle ? HCR_IDLE : HCR_RUN) | (reg.Value & HCR_MEM16); - ret = pcmcia_access_configuration_register(link, ®); + ccsr = (idle ? HCR_IDLE : HCR_RUN) | (ccsr & HCR_MEM16); + ret = pcmcia_write_config_byte(link, CISREG_CCSR, ccsr); if (ret) goto failed; udelay(1000); /* Restore original COR configuration index */ - reg.Action = CS_WRITE; - reg.Offset = CISREG_COR; - reg.Value = (save_cor & ~COR_SOFT_RESET); - ret = pcmcia_access_configuration_register(link, ®); + ret = pcmcia_write_config_byte(link, CISREG_COR, + (save_cor & ~COR_SOFT_RESET)); if (ret) goto failed; udelay(1000); diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c index ba4a5acc2e9a..1733fab469a1 100644 --- a/drivers/pcmcia/cistpl.c +++ b/drivers/pcmcia/cistpl.c @@ -209,7 +209,7 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, * Probably only useful for writing one-byte registers. Must be called * with ops_mutex held. */ -void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, +int pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, u_int len, void *ptr) { void __iomem *sys, *end; @@ -231,7 +231,7 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, ((cis_width) ? MAP_16BIT : 0)); if (!sys) { dev_dbg(&s->dev, "could not map memory\n"); - return; /* FIXME: Error */ + return -EINVAL; } writeb(flags, sys+CISREG_ICTRL0); @@ -256,7 +256,7 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, sys = set_cis_map(s, card_offset, flags); if (!sys) { dev_dbg(&s->dev, "could not map memory\n"); - return; /* FIXME: error */ + return -EINVAL; } end = sys + s->map_size; @@ -270,6 +270,7 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, addr = 0; } } + return 0; } diff --git a/drivers/pcmcia/cs_internal.h b/drivers/pcmcia/cs_internal.h index 45e7fd1aa0bf..cebd40da8b9b 100644 --- a/drivers/pcmcia/cs_internal.h +++ b/drivers/pcmcia/cs_internal.h @@ -158,8 +158,8 @@ extern struct bin_attribute pccard_cis_attr; int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, u_int len, void *ptr); -void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, - u_int addr, u_int len, void *ptr); +int pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, + u_int addr, u_int len, void *ptr); void release_cis_mem(struct pcmcia_socket *s); void destroy_cis_cache(struct pcmcia_socket *s); int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function, diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c index 2394de468602..563750e77eaf 100644 --- a/drivers/pcmcia/pcmcia_resource.c +++ b/drivers/pcmcia/pcmcia_resource.c @@ -108,25 +108,25 @@ static void release_io_space(struct pcmcia_socket *s, unsigned int base, } /* release_io_space */ -/** pccard_access_configuration_register +/** + * pcmcia_access_config() - read or write card configuration registers * - * Access_configuration_register() reads and writes configuration - * registers in attribute memory. Memory window 0 is reserved for - * this and the tuple reading services. + * pcmcia_access_config() reads and writes configuration registers in + * attribute memory. Memory window 0 is reserved for this and the tuple + * reading services. Drivers must use pcmcia_read_config_byte() or + * pcmcia_write_config_byte(). */ - -int pcmcia_access_configuration_register(struct pcmcia_device *p_dev, - conf_reg_t *reg) +static int pcmcia_access_config(struct pcmcia_device *p_dev, + off_t where, u8 *val, + int (*accessf) (struct pcmcia_socket *s, + int attr, unsigned int addr, + unsigned int len, void *ptr)) { struct pcmcia_socket *s; config_t *c; int addr; - u_char val; int ret = 0; - if (!p_dev || !p_dev->function_config) - return -EINVAL; - s = p_dev->socket; mutex_lock(&s->ops_mutex); @@ -138,26 +138,40 @@ int pcmcia_access_configuration_register(struct pcmcia_device *p_dev, return -EACCES; } - addr = (c->ConfigBase + reg->Offset) >> 1; + addr = (c->ConfigBase + where) >> 1; + + ret = accessf(s, 1, addr, 1, val); - switch (reg->Action) { - case CS_READ: - ret = pcmcia_read_cis_mem(s, 1, addr, 1, &val); - reg->Value = val; - break; - case CS_WRITE: - val = reg->Value; - pcmcia_write_cis_mem(s, 1, addr, 1, &val); - break; - default: - dev_dbg(&s->dev, "Invalid conf register request\n"); - ret = -EINVAL; - break; - } mutex_unlock(&s->ops_mutex); + return ret; -} /* pcmcia_access_configuration_register */ -EXPORT_SYMBOL(pcmcia_access_configuration_register); +} /* pcmcia_access_config */ + + +/** + * pcmcia_read_config_byte() - read a byte from a card configuration register + * + * pcmcia_read_config_byte() reads a byte from a configuration register in + * attribute memory. + */ +int pcmcia_read_config_byte(struct pcmcia_device *p_dev, off_t where, u8 *val) +{ + return pcmcia_access_config(p_dev, where, val, pcmcia_read_cis_mem); +} +EXPORT_SYMBOL(pcmcia_read_config_byte); + + +/** + * pcmcia_write_config_byte() - write a byte to a card configuration register + * + * pcmcia_write_config_byte() writes a byte to a configuration register in + * attribute memory. + */ +int pcmcia_write_config_byte(struct pcmcia_device *p_dev, off_t where, u8 val) +{ + return pcmcia_access_config(p_dev, where, &val, pcmcia_write_cis_mem); +} +EXPORT_SYMBOL(pcmcia_write_config_byte); int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh, diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c index 2b99c7baf35b..2be8b107ed51 100644 --- a/drivers/serial/serial_cs.c +++ b/drivers/serial/serial_cs.c @@ -114,16 +114,14 @@ static void quirk_setup_brainboxes_0104(struct pcmcia_device *link, struct uart_ static int quirk_post_ibm(struct pcmcia_device *link) { - conf_reg_t reg = { 0, CS_READ, 0x800, 0 }; + u8 val; int ret; - ret = pcmcia_access_configuration_register(link, ®); + ret = pcmcia_read_config_byte(link, 0x800, &val); if (ret) goto failed; - reg.Action = CS_WRITE; - reg.Value = reg.Value | 1; - ret = pcmcia_access_configuration_register(link, ®); + ret = pcmcia_write_config_byte(link, 0x800, val | 1); if (ret) goto failed; return 0; diff --git a/drivers/ssb/pcmcia.c b/drivers/ssb/pcmcia.c index 21520308178b..526682d68de8 100644 --- a/drivers/ssb/pcmcia.c +++ b/drivers/ssb/pcmcia.c @@ -71,14 +71,9 @@ /* Write to a PCMCIA configuration register. */ static int ssb_pcmcia_cfg_write(struct ssb_bus *bus, u8 offset, u8 value) { - conf_reg_t reg; int res; - memset(®, 0, sizeof(reg)); - reg.Offset = offset; - reg.Action = CS_WRITE; - reg.Value = value; - res = pcmcia_access_configuration_register(bus->host_pcmcia, ®); + res = pcmcia_write_config_byte(bus->host_pcmcia, offset, value); if (unlikely(res != 0)) return -EBUSY; @@ -88,16 +83,11 @@ static int ssb_pcmcia_cfg_write(struct ssb_bus *bus, u8 offset, u8 value) /* Read from a PCMCIA configuration register. */ static int ssb_pcmcia_cfg_read(struct ssb_bus *bus, u8 offset, u8 *value) { - conf_reg_t reg; int res; - memset(®, 0, sizeof(reg)); - reg.Offset = offset; - reg.Action = CS_READ; - res = pcmcia_access_configuration_register(bus->host_pcmcia, ®); + res = pcmcia_read_config_byte(bus->host_pcmcia, offset, value); if (unlikely(res != 0)) return -EBUSY; - *value = reg.Value; return 0; } diff --git a/include/pcmcia/cs.h b/include/pcmcia/cs.h index c78d9b112080..64e853d58c35 100644 --- a/include/pcmcia/cs.h +++ b/include/pcmcia/cs.h @@ -19,18 +19,6 @@ #include #endif -/* For AccessConfigurationRegister */ -typedef struct conf_reg_t { - u_char Function; - u_int Action; - off_t Offset; - u_int Value; -} conf_reg_t; - -/* Actions */ -#define CS_READ 1 -#define CS_WRITE 2 - /* for AdjustResourceInfo */ /* Action field */ #define REMOVE_MANAGED_RESOURCE 1 diff --git a/include/pcmcia/ds.h b/include/pcmcia/ds.h index e614aa0ca2a2..d494ce417b4f 100644 --- a/include/pcmcia/ds.h +++ b/include/pcmcia/ds.h @@ -174,8 +174,8 @@ struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *p_dev); int pcmcia_reset_card(struct pcmcia_socket *skt); /* CIS config */ -int pcmcia_access_configuration_register(struct pcmcia_device *p_dev, - conf_reg_t *reg); +int pcmcia_read_config_byte(struct pcmcia_device *p_dev, off_t where, u8 *val); +int pcmcia_write_config_byte(struct pcmcia_device *p_dev, off_t where, u8 val); /* device configuration */ int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req);