diff options
Diffstat (limited to 'drivers/pcmcia/vrc4173_cardu.c')
| -rw-r--r-- | drivers/pcmcia/vrc4173_cardu.c | 591 |
1 files changed, 0 insertions, 591 deletions
diff --git a/drivers/pcmcia/vrc4173_cardu.c b/drivers/pcmcia/vrc4173_cardu.c deleted file mode 100644 index 9fb0c3addfd4..000000000000 --- a/drivers/pcmcia/vrc4173_cardu.c +++ /dev/null @@ -1,591 +0,0 @@ -/* - * FILE NAME - * drivers/pcmcia/vrc4173_cardu.c - * - * BRIEF MODULE DESCRIPTION - * NEC VRC4173 CARDU driver for Socket Services - * (This device doesn't support CardBus. it is supporting only 16bit PC Card.) - * - * Copyright 2002,2003 Yoichi Yuasa <yuasa@linux-mips.org> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR - * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE - * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ -#include <linux/init.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/spinlock.h> -#include <linux/types.h> - -#include <asm/io.h> - -#include <pcmcia/ss.h> - -#include "vrc4173_cardu.h" - -MODULE_DESCRIPTION("NEC VRC4173 CARDU driver for Socket Services"); -MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>"); -MODULE_LICENSE("GPL"); - -static int vrc4173_cardu_slots; - -static vrc4173_socket_t cardu_sockets[CARDU_MAX_SOCKETS]; - -extern struct socket_info_t *pcmcia_register_socket (int slot, - struct pccard_operations *vtable, - int use_bus_pm); -extern void pcmcia_unregister_socket(struct socket_info_t *s); - -static inline uint8_t exca_readb(vrc4173_socket_t *socket, uint16_t offset) -{ - return readb(socket->base + EXCA_REGS_BASE + offset); -} - -static inline uint16_t exca_readw(vrc4173_socket_t *socket, uint16_t offset) -{ - uint16_t val; - - val = readb(socket->base + EXCA_REGS_BASE + offset); - val |= (u16)readb(socket->base + EXCA_REGS_BASE + offset + 1) << 8; - - return val; -} - -static inline void exca_writeb(vrc4173_socket_t *socket, uint16_t offset, uint8_t val) -{ - writeb(val, socket->base + EXCA_REGS_BASE + offset); -} - -static inline void exca_writew(vrc4173_socket_t *socket, uint8_t offset, uint16_t val) -{ - writeb((u8)val, socket->base + EXCA_REGS_BASE + offset); - writeb((u8)(val >> 8), socket->base + EXCA_REGS_BASE + offset + 1); -} - -static inline uint32_t cardbus_socket_readl(vrc4173_socket_t *socket, u16 offset) -{ - return readl(socket->base + CARDBUS_SOCKET_REGS_BASE + offset); -} - -static inline void cardbus_socket_writel(vrc4173_socket_t *socket, u16 offset, uint32_t val) -{ - writel(val, socket->base + CARDBUS_SOCKET_REGS_BASE + offset); -} - -static void cardu_pciregs_init(struct pci_dev *dev) -{ - u32 syscnt; - u16 brgcnt; - u8 devcnt; - - pci_write_config_dword(dev, 0x1c, 0x10000000); - pci_write_config_dword(dev, 0x20, 0x17fff000); - pci_write_config_dword(dev, 0x2c, 0); - pci_write_config_dword(dev, 0x30, 0xfffc); - - pci_read_config_word(dev, BRGCNT, &brgcnt); - brgcnt &= ~IREQ_INT; - pci_write_config_word(dev, BRGCNT, brgcnt); - - pci_read_config_dword(dev, SYSCNT, &syscnt); - syscnt &= ~(BAD_VCC_REQ_DISB|PCPCI_EN|CH_ASSIGN_MASK|SUB_ID_WR_EN|PCI_CLK_RIN); - syscnt |= (CH_ASSIGN_NODMA|ASYN_INT_MODE); - pci_write_config_dword(dev, SYSCNT, syscnt); - - pci_read_config_byte(dev, DEVCNT, &devcnt); - devcnt &= ~(ZOOM_VIDEO_EN|SR_PCI_INT_SEL_MASK|PCI_INT_MODE|IRQ_MODE); - devcnt |= (SR_PCI_INT_SEL_NONE|IFG); - pci_write_config_byte(dev, DEVCNT, devcnt); - - pci_write_config_byte(dev, CHIPCNT, S_PREF_DISB); - - pci_write_config_byte(dev, SERRDIS, 0); -} - -static int cardu_init(unsigned int slot) -{ - vrc4173_socket_t *socket = &cardu_sockets[slot]; - - cardu_pciregs_init(socket->dev); - - /* CARD_SC bits are cleared by reading CARD_SC. */ - exca_writeb(socket, GLO_CNT, 0); - - socket->cap.features |= SS_CAP_PCCARD | SS_CAP_PAGE_REGS; - socket->cap.irq_mask = 0; - socket->cap.map_size = 0x1000; - socket->cap.pci_irq = socket->dev->irq; - socket->events = 0; - spin_lock_init(socket->event_lock); - - /* Enable PC Card status interrupts */ - exca_writeb(socket, CARD_SCI, CARD_DT_EN|RDY_EN|BAT_WAR_EN|BAT_DEAD_EN); - - return 0; -} - -static int cardu_register_callback(unsigned int sock, - void (*handler)(void *, unsigned int), - void * info) -{ - vrc4173_socket_t *socket = &cardu_sockets[sock]; - - socket->handler = handler; - socket->info = info; - - return 0; -} - -static int cardu_inquire_socket(unsigned int sock, socket_cap_t *cap) -{ - vrc4173_socket_t *socket = &cardu_sockets[sock]; - - *cap = socket->cap; - - return 0; -} - -static int cardu_get_status(unsigned int sock, u_int *value) -{ - vrc4173_socket_t *socket = &cardu_sockets[sock]; - uint32_t state; - uint8_t status; - u_int val = 0; - - status = exca_readb(socket, IF_STATUS); - if (status & CARD_PWR) val |= SS_POWERON; - if (status & READY) val |= SS_READY; - if (status & CARD_WP) val |= SS_WRPROT; - if ((status & (CARD_DETECT1|CARD_DETECT2)) == (CARD_DETECT1|CARD_DETECT2)) - val |= SS_DETECT; - if (exca_readb(socket, INT_GEN_CNT) & CARD_TYPE_IO) { - if (status & STSCHG) val |= SS_STSCHG; - } else { - status &= BV_DETECT_MASK; - if (status != BV_DETECT_GOOD) { - if (status == BV_DETECT_WARN) val |= SS_BATWARN; - else val |= SS_BATDEAD; - } - } - - state = cardbus_socket_readl(socket, SKT_PRE_STATE); - if (state & VOL_3V_CARD_DT) val |= SS_3VCARD; - if (state & VOL_XV_CARD_DT) val |= SS_XVCARD; - if (state & CB_CARD_DT) val |= SS_CARDBUS; - if (!(state & - (VOL_YV_CARD_DT|VOL_XV_CARD_DT|VOL_3V_CARD_DT|VOL_5V_CARD_DT|CCD20|CCD10))) - val |= SS_PENDING; - - *value = val; - - return 0; -} - -static inline uint8_t set_Vcc_value(u_char Vcc) -{ - switch (Vcc) { - case 33: - return VCC_3V; - case 50: - return VCC_5V; - } - - return VCC_0V; -} - -static inline uint8_t set_Vpp_value(u_char Vpp) -{ - switch (Vpp) { - case 33: - case 50: - return VPP_VCC; - case 120: - return VPP_12V; - } - - return VPP_0V; -} - -static int cardu_set_socket(unsigned int sock, socket_state_t *state) -{ - vrc4173_socket_t *socket = &cardu_sockets[sock]; - uint8_t val; - - if (((state->Vpp == 33) || (state->Vpp == 50)) && (state->Vpp != state->Vcc)) - return -EINVAL; - - val = set_Vcc_value(state->Vcc); - val |= set_Vpp_value(state->Vpp); - if (state->flags & SS_OUTPUT_ENA) val |= CARD_OUT_EN; - exca_writeb(socket, PWR_CNT, val); - - val = exca_readb(socket, INT_GEN_CNT) & CARD_REST0; - if (state->flags & SS_RESET) val &= ~CARD_REST0; - else val |= CARD_REST0; - if (state->flags & SS_IOCARD) val |= CARD_TYPE_IO; - exca_writeb(socket, INT_GEN_CNT, val); - - return 0; -} - -static int cardu_get_io_map(unsigned int sock, struct pccard_io_map *io) -{ - vrc4173_socket_t *socket = &cardu_sockets[sock]; - uint8_t ioctl, window; - u_char map; - - map = io->map; - if (map > 1) - return -EINVAL; - - io->start = exca_readw(socket, IO_WIN_SA(map)); - io->stop = exca_readw(socket, IO_WIN_EA(map)); - - ioctl = exca_readb(socket, IO_WIN_CNT); - window = exca_readb(socket, ADR_WIN_EN); - io->flags = (window & IO_WIN_EN(map)) ? MAP_ACTIVE : 0; - if (ioctl & IO_WIN_DATA_AUTOSZ(map)) - io->flags |= MAP_AUTOSZ; - else if (ioctl & IO_WIN_DATA_16BIT(map)) - io->flags |= MAP_16BIT; - - return 0; -} - -static int cardu_set_io_map(unsigned int sock, struct pccard_io_map *io) -{ - vrc4173_socket_t *socket = &cardu_sockets[sock]; - uint16_t ioctl; - uint8_t window, enable; - u_char map; - - map = io->map; - if (map > 1) - return -EINVAL; - - window = exca_readb(socket, ADR_WIN_EN); - enable = IO_WIN_EN(map); - - if (window & enable) { - window &= ~enable; - exca_writeb(socket, ADR_WIN_EN, window); - } - - exca_writew(socket, IO_WIN_SA(map), io->start); - exca_writew(socket, IO_WIN_EA(map), io->stop); - - ioctl = exca_readb(socket, IO_WIN_CNT) & ~IO_WIN_CNT_MASK(map); - if (io->flags & MAP_AUTOSZ) ioctl |= IO_WIN_DATA_AUTOSZ(map); - else if (io->flags & MAP_16BIT) ioctl |= IO_WIN_DATA_16BIT(map); - exca_writeb(socket, IO_WIN_CNT, ioctl); - - if (io->flags & MAP_ACTIVE) - exca_writeb(socket, ADR_WIN_EN, window | enable); - - return 0; -} - -static int cardu_get_mem_map(unsigned int sock, struct pccard_mem_map *mem) -{ - vrc4173_socket_t *socket = &cardu_sockets[sock]; - uint32_t start, stop, offset, page; - uint8_t window; - u_char map; - - map = mem->map; - if (map > 4) - return -EINVAL; - - window = exca_readb(socket, ADR_WIN_EN); - mem->flags = (window & MEM_WIN_EN(map)) ? MAP_ACTIVE : 0; - - start = exca_readw(socket, MEM_WIN_SA(map)); - mem->flags |= (start & MEM_WIN_DSIZE) ? MAP_16BIT : 0; - start = (start & 0x0fff) << 12; - - stop = exca_readw(socket, MEM_WIN_EA(map)); - stop = ((stop & 0x0fff) << 12) + 0x0fff; - - offset = exca_readw(socket, MEM_WIN_OA(map)); - mem->flags |= (offset & MEM_WIN_WP) ? MAP_WRPROT : 0; - mem->flags |= (offset & MEM_WIN_REGSET) ? MAP_ATTRIB : 0; - offset = ((offset & 0x3fff) << 12) + start; - mem->card_start = offset & 0x03ffffff; - - page = exca_readb(socket, MEM_WIN_SAU(map)) << 24; - mem->sys_start = start + page; - mem->sys_stop = start + page; - - return 0; -} - -static int cardu_set_mem_map(unsigned int sock, struct pccard_mem_map *mem) -{ - vrc4173_socket_t *socket = &cardu_sockets[sock]; - uint16_t value; - uint8_t window, enable; - u_long sys_start, sys_stop, card_start; - u_char map; - - map = mem->map; - sys_start = mem->sys_start; - sys_stop = mem->sys_stop; - card_start = mem->card_start; - - if (map > 4 || sys_start > sys_stop || ((sys_start ^ sys_stop) >> 24) || - (card_start >> 26)) - return -EINVAL; - - window = exca_readb(socket, ADR_WIN_EN); - enable = MEM_WIN_EN(map); - if (window & enable) { - window &= ~enable; - exca_writeb(socket, ADR_WIN_EN, window); - } - - exca_writeb(socket, MEM_WIN_SAU(map), sys_start >> 24); - - value = (sys_start >> 12) & 0x0fff; - if (mem->flags & MAP_16BIT) value |= MEM_WIN_DSIZE; - exca_writew(socket, MEM_WIN_SA(map), value); - - value = (sys_stop >> 12) & 0x0fff; - exca_writew(socket, MEM_WIN_EA(map), value); - - value = ((card_start - sys_start) >> 12) & 0x3fff; - if (mem->flags & MAP_WRPROT) value |= MEM_WIN_WP; - if (mem->flags & MAP_ATTRIB) value |= MEM_WIN_REGSET; - exca_writew(socket, MEM_WIN_OA(map), value); - - if (mem->flags & MAP_ACTIVE) - exca_writeb(socket, ADR_WIN_EN, window | enable); - - return 0; -} - -static void cardu_proc_setup(unsigned int sock, struct proc_dir_entry *base) -{ -} - -static struct pccard_operations cardu_operations = { - .init = cardu_init, - .register_callback = cardu_register_callback, - .inquire_socket = cardu_inquire_socket, - .get_status = cardu_get_status, - .set_socket = cardu_set_socket, - .get_io_map = cardu_get_io_map, - .set_io_map = cardu_set_io_map, - .get_mem_map = cardu_get_mem_map, - .set_mem_map = cardu_set_mem_map, - .proc_setup = cardu_proc_setup, -}; - -static void cardu_bh(void *data) -{ - vrc4173_socket_t *socket = (vrc4173_socket_t *)data; - uint16_t events; - - spin_lock_irq(&socket->event_lock); - events = socket->events; - socket->events = 0; - spin_unlock_irq(&socket->event_lock); - - if (socket->handler) - socket->handler(socket->info, events); -} - -static uint16_t get_events(vrc4173_socket_t *socket) -{ - uint16_t events = 0; - uint8_t csc, status; - - status = exca_readb(socket, IF_STATUS); - csc = exca_readb(socket, CARD_SC); - if ((csc & CARD_DT_CHG) && - ((status & (CARD_DETECT1|CARD_DETECT2)) == (CARD_DETECT1|CARD_DETECT2))) - events |= SS_DETECT; - - if ((csc & RDY_CHG) && (status & READY)) - events |= SS_READY; - - if (exca_readb(socket, INT_GEN_CNT) & CARD_TYPE_IO) { - if ((csc & BAT_DEAD_ST_CHG) && (status & STSCHG)) - events |= SS_STSCHG; - } else { - if (csc & (BAT_WAR_CHG|BAT_DEAD_ST_CHG)) { - if ((status & BV_DETECT_MASK) != BV_DETECT_GOOD) { - if (status == BV_DETECT_WARN) events |= SS_BATWARN; - else events |= SS_BATDEAD; - } - } - } - - return events; -} - -static void cardu_interrupt(int irq, void *dev_id) -{ - vrc4173_socket_t *socket = (vrc4173_socket_t *)dev_id; - uint16_t events; - - INIT_WORK(&socket->tq_work, cardu_bh, socket); - - events = get_events(socket); - if (events) { - spin_lock(&socket->event_lock); - socket->events |= events; - spin_unlock(&socket->event_lock); - schedule_work(&socket->tq_work); - } -} - -static int vrc4173_cardu_probe(struct pci_dev *dev, - const struct pci_device_id *ent) -{ - vrc4173_socket_t *socket; - unsigned long start, len, flags; - int slot, err, ret; - - slot = vrc4173_cardu_slots++; - socket = &cardu_sockets[slot]; - if (socket->noprobe != 0) - return -EBUSY; - - sprintf(socket->name, "NEC VRC4173 CARDU%1d", slot+1); - - if ((err = pci_enable_device(dev)) < 0) - return err; - - start = pci_resource_start(dev, 0); - if (start == 0) { - ret = -ENODEV; - goto disable; - } - - len = pci_resource_len(dev, 0); - if (len == 0) { - ret = -ENODEV; - goto disable; - } - - flags = pci_resource_flags(dev, 0); - if ((flags & IORESOURCE_MEM) == 0) { - ret = -EBUSY; - goto disable; - } - - err = pci_request_regions(dev, socket->name); - if (err < 0) { - ret = err; - goto disable; - } - - socket->base = ioremap(start, len); - if (socket->base == NULL) { - ret = -ENODEV; - goto release; - } - - socket->dev = dev; - - socket->pcmcia_socket = pcmcia_register_socket(slot, &cardu_operations, 1); - if (socket->pcmcia_socket == NULL) { - ret = -ENOMEM; - goto unmap; - } - - if (request_irq(dev->irq, cardu_interrupt, IRQF_SHARED, socket->name, socket) < 0) { - ret = -EBUSY; - goto unregister; - } - - printk(KERN_INFO "%s at %#08lx, IRQ %d\n", socket->name, start, dev->irq); - - return 0; - -unregister: - pcmcia_unregister_socket(socket->pcmcia_socket); - socket->pcmcia_socket = NULL; -unmap: - iounmap(socket->base); - socket->base = NULL; -release: - pci_release_regions(dev); -disable: - pci_disable_device(dev); - return ret; -} - -static int vrc4173_cardu_setup(char *options) -{ - if (options == NULL || *options == '\0') - return 1; - - if (strncmp(options, "cardu1:", 7) == 0) { - options += 7; - if (*options != '\0') { - if (strncmp(options, "noprobe", 7) == 0) { - cardu_sockets[CARDU1].noprobe = 1; - options += 7; - } - - if (*options != ',') - return 1; - } else - return 1; - } - - if (strncmp(options, "cardu2:", 7) == 0) { - options += 7; - if ((*options != '\0') && (strncmp(options, "noprobe", 7) == 0)) - cardu_sockets[CARDU2].noprobe = 1; - } - - return 1; -} - -__setup("vrc4173_cardu=", vrc4173_cardu_setup); - -static const struct pci_device_id vrc4173_cardu_id_table[] = { - { PCI_DEVICE(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_NAPCCARD) }, - {0, } -}; - -static struct pci_driver vrc4173_cardu_driver = { - .name = "NEC VRC4173 CARDU", - .probe = vrc4173_cardu_probe, - .id_table = vrc4173_cardu_id_table, -}; - -static int vrc4173_cardu_init(void) -{ - vrc4173_cardu_slots = 0; - - return pci_register_driver(&vrc4173_cardu_driver); -} - -static void vrc4173_cardu_exit(void) -{ - pci_unregister_driver(&vrc4173_cardu_driver); -} - -module_init(vrc4173_cardu_init); -module_exit(vrc4173_cardu_exit); -MODULE_DEVICE_TABLE(pci, vrc4173_cardu_id_table); |