diff options
Diffstat (limited to 'target/linux/ifxmips/files/drivers')
6 files changed, 664 insertions, 855 deletions
diff --git a/target/linux/ifxmips/files/drivers/char/ifxmips_eeprom.c b/target/linux/ifxmips/files/drivers/char/ifxmips_eeprom.c index ea1303cd6..e1d37934d 100644 --- a/target/linux/ifxmips/files/drivers/char/ifxmips_eeprom.c +++ b/target/linux/ifxmips/files/drivers/char/ifxmips_eeprom.c @@ -16,11 +16,11 @@ * This driver was originally based on the INCA-IP driver, but due to * fundamental conceptual drawbacks there has been changed a lot. * - * Based on INCA-IP driver Copyright (c) 2003 Gary Jennejohn <gj@denx.de> - * Based on the VxWorks drivers Copyright (c) 2002, Infineon Technologies. + * Based on INCA-IP driver Copyright(c) 2003 Gary Jennejohn <gj@denx.de> + * Based on the VxWorks drivers Copyright(c) 2002, Infineon Technologies. * - * Copyright (C) 2006 infineon - * Copyright (C) 2007 John Crispin <blogic@openwrt.org> + * Copyright(C) 2006 infineon + * Copyright(C) 2007 John Crispin <blogic@openwrt.org> * */ @@ -43,38 +43,38 @@ #include <linux/delay.h> #include <linux/spinlock.h> #include <linux/slab.h> -#include <asm/system.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/uaccess.h> -#include <asm/bitops.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/uaccess.h> +#include <linux/bitops.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/version.h> +#include <asm/system.h> #include <asm/ifxmips/ifxmips.h> #include <asm/ifxmips/ifxmips_irq.h> #include <asm/ifxmips/ifx_ssc_defines.h> #include <asm/ifxmips/ifx_ssc.h> /* allow the user to set the major device number */ -static int ifxmips_eeprom_maj = 0; +static int ifxmips_eeprom_maj; -extern int ifx_ssc_init (void); -extern int ifx_ssc_open (struct inode *inode, struct file *filp); -extern int ifx_ssc_close (struct inode *inode, struct file *filp); -extern void ifx_ssc_cleanup_module (void); -extern int ifx_ssc_ioctl (struct inode *inode, struct file *filp, +extern int ifx_ssc_init(void); +extern int ifx_ssc_open(struct inode *inode, struct file *filp); +extern int ifx_ssc_close(struct inode *inode, struct file *filp); +extern void ifx_ssc_cleanup_module(void); +extern int ifx_ssc_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long data); -extern ssize_t ifx_ssc_kwrite (int port, const char *kbuf, size_t len); -extern ssize_t ifx_ssc_kread (int port, char *kbuf, size_t len); +extern ssize_t ifx_ssc_kwrite(int port, const char *kbuf, size_t len); +extern ssize_t ifx_ssc_kread(int port, char *kbuf, size_t len); -extern int ifx_ssc_cs_low (unsigned int pin); -extern int ifx_ssc_cs_high (unsigned int pin); -extern int ifx_ssc_txrx (char *tx_buf, unsigned int tx_len, char *rx_buf, unsigned int rx_len); -extern int ifx_ssc_tx (char *tx_buf, unsigned int tx_len); -extern int ifx_ssc_rx (char *rx_buf, unsigned int rx_len); +extern int ifx_ssc_cs_low(unsigned int pin); +extern int ifx_ssc_cs_high(unsigned int pin); +extern int ifx_ssc_txrx(char *tx_buf, unsigned int tx_len, char *rx_buf, unsigned int rx_len); +extern int ifx_ssc_tx(char *tx_buf, unsigned int tx_len); +extern int ifx_ssc_rx(char *rx_buf, unsigned int rx_len); #define EEPROM_CS IFX_SSC_WHBGPOSTAT_OUT0_POS @@ -88,8 +88,7 @@ extern int ifx_ssc_rx (char *rx_buf, unsigned int rx_len); #define EEPROM_PAGE_SIZE 4 #define EEPROM_SIZE 512 -static int -eeprom_rdsr (void) +static int eeprom_rdsr(void) { int ret = 0; unsigned char cmd = EEPROM_RDSR; @@ -108,15 +107,13 @@ eeprom_rdsr (void) return ret; } -void -eeprom_wip_over (void) +void eeprom_wip_over(void) { while (eeprom_rdsr()) - printk("waiting for eeprom\n"); + printk(KERN_INFO "waiting for eeprom\n"); } -static int -eeprom_wren (void) +static int eeprom_wren(void) { unsigned char cmd = EEPROM_WREN; int ret = 0; @@ -136,8 +133,7 @@ eeprom_wren (void) return ret; } -static int -eeprom_wrsr (void) +static int eeprom_wrsr(void) { int ret = 0; unsigned char cmd[2]; @@ -146,9 +142,8 @@ eeprom_wrsr (void) cmd[0] = EEPROM_WRSR; cmd[1] = 0; - if ((ret = eeprom_wren())) - { - printk ("eeprom_wren fails\n"); + if ((ret = eeprom_wren())) { + printk(KERN_ERR "eeprom_wren fails\n"); goto out1; } @@ -171,23 +166,21 @@ eeprom_wrsr (void) return ret; out: - local_irq_restore (flag); - eeprom_wip_over (); + local_irq_restore(flag); + eeprom_wip_over(); out1: return ret; } -static int -eeprom_read (unsigned int addr, unsigned char *buf, unsigned int len) +static int eeprom_read(unsigned int addr, unsigned char *buf, unsigned int len) { int ret = 0; unsigned char write_buf[2]; unsigned int eff = 0; unsigned long flag; - while (1) - { + while (1) { eeprom_wip_over(); eff = EEPROM_PAGE_SIZE - (addr % EEPROM_PAGE_SIZE); eff = (eff < len) ? eff : len; @@ -196,13 +189,13 @@ eeprom_read (unsigned int addr, unsigned char *buf, unsigned int len) if ((ret = ifx_ssc_cs_low(EEPROM_CS)) < 0) goto out; - write_buf[0] = EEPROM_READ | ((unsigned char) ((addr & 0x100) >> 5)); + write_buf[0] = EEPROM_READ | ((unsigned char)((addr & 0x100) >> 5)); write_buf[1] = (addr & 0xff); - if ((ret = ifx_ssc_txrx (write_buf, 2, buf, eff)) != eff) - { - printk("ssc_txrx fails %d\n", ret); - ifx_ssc_cs_high (EEPROM_CS); + ret = ifx_ssc_txrx(write_buf, 2, buf, eff); + if (ret != eff) { + printk(KERN_ERR "ssc_txrx fails %d\n", ret); + ifx_ssc_cs_high(EEPROM_CS); goto out; } @@ -210,7 +203,8 @@ eeprom_read (unsigned int addr, unsigned char *buf, unsigned int len) len -= ret; addr += ret; - if ((ret = ifx_ssc_cs_high(EEPROM_CS))) + ret = ifx_ssc_cs_high(EEPROM_CS); + if (ret) goto out; local_irq_restore(flag); @@ -220,13 +214,12 @@ eeprom_read (unsigned int addr, unsigned char *buf, unsigned int len) } out: - local_irq_restore (flag); + local_irq_restore(flag); out2: return ret; } -static int -eeprom_write (unsigned int addr, unsigned char *buf, unsigned int len) +static int eeprom_write(unsigned int addr, unsigned char *buf, unsigned int len) { int ret = 0; unsigned int eff = 0; @@ -234,23 +227,21 @@ eeprom_write (unsigned int addr, unsigned char *buf, unsigned int len) int i; unsigned char rx_buf[EEPROM_PAGE_SIZE]; - while (1) - { + while (1) { eeprom_wip_over(); - if ((ret = eeprom_wren())) - { - printk("eeprom_wren fails\n"); + if ((ret = eeprom_wren())) { + printk(KERN_ERR "eeprom_wren fails\n"); goto out; } - write_buf[0] = EEPROM_WRITE | ((unsigned char) ((addr & 0x100) >> 5)); + write_buf[0] = EEPROM_WRITE | ((unsigned char)((addr & 0x100) >> 5)); write_buf[1] = (addr & 0xff); eff = EEPROM_PAGE_SIZE - (addr % EEPROM_PAGE_SIZE); eff = (eff < len) ? eff : len; - printk("EEPROM Write:\n"); + printk(KERN_INFO "EEPROM Write:\n"); for (i = 0; i < eff; i++) { printk("%2x ", buf[i]); if ((i % 16) == 15) @@ -261,16 +252,14 @@ eeprom_write (unsigned int addr, unsigned char *buf, unsigned int len) if ((ret = ifx_ssc_cs_low(EEPROM_CS))) goto out; - if ((ret = ifx_ssc_tx (write_buf, 2)) < 0) - { - printk("ssc_tx fails %d\n", ret); + if ((ret = ifx_ssc_tx(write_buf, 2)) < 0) { + printk(KERN_ERR "ssc_tx fails %d\n", ret); ifx_ssc_cs_high(EEPROM_CS); goto out; } - if ((ret = ifx_ssc_tx (buf, eff)) != eff) - { - printk("ssc_tx fails %d\n", ret); + if ((ret = ifx_ssc_tx(buf, eff)) != eff) { + printk(KERN_ERR "ssc_tx fails %d\n", ret); ifx_ssc_cs_high(EEPROM_CS); goto out; } @@ -279,16 +268,14 @@ eeprom_write (unsigned int addr, unsigned char *buf, unsigned int len) len -= ret; addr += ret; - if ((ret = ifx_ssc_cs_high (EEPROM_CS))) + if ((ret = ifx_ssc_cs_high(EEPROM_CS))) goto out; - printk ("<=="); + printk(KERN_INFO "<=="); eeprom_read((addr - eff), rx_buf, eff); for (i = 0; i < eff; i++) - { - printk ("[%x]", rx_buf[i]); - } - printk ("\n"); + printk("[%x]", rx_buf[i]); + printk("\n"); if (len <= 0) break; @@ -298,81 +285,71 @@ out: return ret; } -int -ifxmips_eeprom_open (struct inode *inode, struct file *filp) +int ifxmips_eeprom_open(struct inode *inode, struct file *filp) { filp->f_pos = 0; return 0; } -int -ifxmips_eeprom_close (struct inode *inode, struct file *filp) +int ifxmips_eeprom_close(struct inode *inode, struct file *filp) { return 0; } -int -ifxmips_eeprom_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigned long data) +int ifxmips_eeprom_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long data) { return 0; } -ssize_t -ifxmips_eeprom_read (char *buf, size_t len, unsigned int addr) +ssize_t ifxmips_eeprom_read(char *buf, size_t len, unsigned int addr) { int ret = 0; unsigned int data; - printk("addr:=%d\n", addr); - printk("len:=%d\n", len); + printk(KERN_INFO "addr:=%d\n", addr); + printk(KERN_INFO "len:=%d\n", len); - if ((addr + len) > EEPROM_SIZE) - { - printk("invalid len\n"); + if ((addr + len) > EEPROM_SIZE) { + printk(KERN_ERR "invalid len\n"); addr = 0; len = EEPROM_SIZE / 2; } - if ((ret = ifx_ssc_open((struct inode *) 0, NULL))) - { - printk("ifxmips_eeprom_open fails\n"); + if ((ret = ifx_ssc_open((struct inode *)0, NULL))) { + printk(KERN_ERR "ifxmips_ssc_open fails\n"); goto out; } data = (unsigned int)IFX_SSC_MODE_RXTX; - if ((ret = ifx_ssc_ioctl((struct inode *) 0, NULL, IFX_SSC_RXTX_MODE_SET, (unsigned long) &data))) - { - printk("set RXTX mode fails\n"); + if ((ret = ifx_ssc_ioctl((struct inode *)0, NULL, IFX_SSC_RXTX_MODE_SET, (unsigned long) &data))) { + printk(KERN_ERR "set RXTX mode fails\n"); goto out; } - if ((ret = eeprom_wrsr())) - { - printk("EEPROM reset fails\n"); + if ((ret = eeprom_wrsr())) { + printk(KERN_ERR "EEPROM reset fails\n"); goto out; } - if ((ret = eeprom_read(addr, buf, len))) - { - printk("eeprom read fails\n"); + if ((ret = eeprom_read(addr, buf, len))) { + printk(KERN_ERR "eeprom read fails\n"); goto out; } out: - if (ifx_ssc_close((struct inode *) 0, NULL)) - printk("ifxmips_eeprom_close fails\n"); + if (ifx_ssc_close((struct inode *)0, NULL)) + printk(KERN_ERR "ifxmips_ssc_close fails\n"); return len; } EXPORT_SYMBOL(ifxmips_eeprom_read); -static ssize_t -ifxmips_eeprom_fops_read (struct file *filp, char *ubuf, size_t len, loff_t * off) +static ssize_t ifxmips_eeprom_fops_read(struct file *filp, char *ubuf, size_t len, loff_t *off) { int ret = 0; unsigned char ssc_rx_buf[EEPROM_SIZE]; - long flag; + unsigned long flag; if (*off >= EEPROM_SIZE) return 0; @@ -385,15 +362,13 @@ ifxmips_eeprom_fops_read (struct file *filp, char *ubuf, size_t len, loff_t * of local_irq_save(flag); - if ((ret = ifxmips_eeprom_read(ssc_rx_buf, len, *off)) < 0) - { - printk("read fails, err=%x\n", ret); + if ((ret = ifxmips_eeprom_read(ssc_rx_buf, len, *off)) < 0) { + printk(KERN_ERR "read fails, err=%x\n", ret); local_irq_restore(flag); return ret; } - if (copy_to_user((void*)ubuf, ssc_rx_buf, ret) != 0) - { + if (copy_to_user((void *)ubuf, ssc_rx_buf, ret) != 0) { local_irq_restore(flag); ret = -EFAULT; } @@ -404,46 +379,42 @@ ifxmips_eeprom_fops_read (struct file *filp, char *ubuf, size_t len, loff_t * of return len; } -ssize_t -ifxmips_eeprom_write (char *buf, size_t len, unsigned int addr) +ssize_t ifxmips_eeprom_write(char *buf, size_t len, unsigned int addr) { int ret = 0; unsigned int data; - if ((ret = ifx_ssc_open ((struct inode *) 0, NULL))) - { - printk ("ifxmips_eeprom_open fails\n"); + if ((ret = ifx_ssc_open((struct inode *)0, NULL))) { + printk(KERN_ERR "ifxmips_ssc_open fails\n"); goto out; } data = (unsigned int) IFX_SSC_MODE_RXTX; - if ((ret = ifx_ssc_ioctl ((struct inode *) 0, NULL, IFX_SSC_RXTX_MODE_SET, (unsigned long) &data))) - { - printk ("set RXTX mode fails\n"); + if ((ret = ifx_ssc_ioctl((struct inode *)0, NULL, IFX_SSC_RXTX_MODE_SET, (unsigned long) &data))) { + printk(KERN_ERR "set RXTX mode fails\n"); goto out; } - if ((ret = eeprom_wrsr ())) { - printk ("EEPROM reset fails\n"); + if ((ret = eeprom_wrsr())) { + printk(KERN_ERR "EEPROM reset fails\n"); goto out; } - if ((ret = eeprom_write (addr, buf, len))) { - printk ("eeprom write fails\n"); + if ((ret = eeprom_write(addr, buf, len))) { + printk(KERN_ERR "eeprom write fails\n"); goto out; } out: - if (ifx_ssc_close ((struct inode *) 0, NULL)) - printk ("ifxmips_eeprom_close fails\n"); + if (ifx_ssc_close((struct inode *)0, NULL)) + printk(KERN_ERR "ifxmips_ssc_close fails\n"); return ret; } EXPORT_SYMBOL(ifxmips_eeprom_write); -static ssize_t -ifxmips_eeprom_fops_write (struct file *filp, const char *ubuf, size_t len, loff_t * off) +static ssize_t ifxmips_eeprom_fops_write(struct file *filp, const char *ubuf, size_t len, loff_t *off) { int ret = 0; unsigned char ssc_tx_buf[EEPROM_SIZE]; @@ -454,10 +425,10 @@ ifxmips_eeprom_fops_write (struct file *filp, const char *ubuf, size_t len, loff if (len + *off > EEPROM_SIZE) len = EEPROM_SIZE - *off; - if ((ret = copy_from_user (ssc_tx_buf, ubuf, len))) + if ((ret = copy_from_user(ssc_tx_buf, ubuf, len))) return EFAULT; - ret = ifxmips_eeprom_write (ssc_tx_buf, len, *off); + ret = ifxmips_eeprom_write(ssc_tx_buf, len, *off); if (ret > 0) *off = ret; @@ -465,8 +436,7 @@ ifxmips_eeprom_fops_write (struct file *filp, const char *ubuf, size_t len, loff return ret; } -loff_t -ifxmips_eeprom_llseek (struct file * filp, loff_t off, int whence) +loff_t ifxmips_eeprom_llseek(struct file *filp, loff_t off, int whence) { loff_t newpos; switch (whence) { @@ -491,51 +461,47 @@ ifxmips_eeprom_llseek (struct file * filp, loff_t off, int whence) } static struct file_operations ifxmips_eeprom_fops = { - owner:THIS_MODULE, - llseek:ifxmips_eeprom_llseek, - read:ifxmips_eeprom_fops_read, - write:ifxmips_eeprom_fops_write, - ioctl:ifxmips_eeprom_ioctl, - open:ifxmips_eeprom_open, - release:ifxmips_eeprom_close, + .owner = THIS_MODULE, + .llseek = ifxmips_eeprom_llseek, + .read = ifxmips_eeprom_fops_read, + .write = ifxmips_eeprom_fops_write, + .ioctl = ifxmips_eeprom_ioctl, + .open = ifxmips_eeprom_open, + .release = ifxmips_eeprom_close, }; -int __init -ifxmips_eeprom_init (void) +int __init ifxmips_eeprom_init(void) { int ret = 0; ifxmips_eeprom_maj = register_chrdev(0, "eeprom", &ifxmips_eeprom_fops); - if (ifxmips_eeprom_maj < 0) - { - printk("failed to register eeprom device\n"); + if (ifxmips_eeprom_maj < 0) { + printk(KERN_ERR "failed to register eeprom device\n"); ret = -EINVAL; - + goto out; } - printk("ifxmips_eeprom : /dev/eeprom mayor %d\n", ifxmips_eeprom_maj); + printk(KERN_INFO "ifxmips_eeprom : /dev/eeprom mayor %d\n", ifxmips_eeprom_maj); out: return ret; } -void __exit -ifxmips_eeprom_cleanup_module (void) +void __exit ifxmips_eeprom_cleanup_module(void) { - /*if (unregister_chrdev (ifxmips_eeprom_maj, "eeprom")) { - printk ("Unable to unregister major %d for the EEPROM\n", + /*if (unregister_chrdev(ifxmips_eeprom_maj, "eeprom")) { + printk(KERN_ERR "Unable to unregister major %d for the EEPROM\n", maj); }*/ } -module_exit (ifxmips_eeprom_cleanup_module); -module_init (ifxmips_eeprom_init); - -MODULE_LICENSE ("GPL"); -MODULE_AUTHOR ("Peng Liu"); -MODULE_DESCRIPTION ("IFAP EEPROM driver"); -MODULE_SUPPORTED_DEVICE ("ifxmips_eeprom"); +module_exit(ifxmips_eeprom_cleanup_module); +module_init(ifxmips_eeprom_init); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Peng Liu"); +MODULE_DESCRIPTION("IFAP EEPROM driver"); +MODULE_SUPPORTED_DEVICE("ifxmips_eeprom"); diff --git a/target/linux/ifxmips/files/drivers/char/ifxmips_ssc.c b/target/linux/ifxmips/files/drivers/char/ifxmips_ssc.c index 35b32e852..5d6135602 100644 --- a/target/linux/ifxmips/files/drivers/char/ifxmips_ssc.c +++ b/target/linux/ifxmips/files/drivers/char/ifxmips_ssc.c @@ -13,17 +13,19 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. * - * Copyright (C) 2006 infineon - * Copyright (C) 2007 John Crispin <blogic@openwrt.org> + * Copyright(C) 2006 infineon + * Copyright(C) 2007 John Crispin <blogic@openwrt.org> * */ -// ### TO DO: general issues: -// - power management -// - interrupt handling (direct/indirect) -// - pin/mux-handling (just overall concept due to project dependency) -// - multiple instances capability -// - slave functionality +/* +### TO DO: general issues: + - power management + - interrupt handling (direct/indirect) + - pin/mux-handling (just overall concept due to project dependency) + - multiple instances capability + - slave functionality +*/ #include <linux/module.h> #include <linux/errno.h> @@ -42,24 +44,23 @@ #include <linux/delay.h> #include <linux/spinlock.h> #include <linux/slab.h> - -#include <asm/system.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/uaccess.h> -#include <asm/bitops.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/uaccess.h> +#include <linux/bitops.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/version.h> +#include <asm/system.h> #include <asm/ifxmips/ifxmips.h> #include <asm/ifxmips/ifxmips_irq.h> #include <asm/ifxmips/ifx_ssc_defines.h> #include <asm/ifxmips/ifx_ssc.h> /* allow the user to set the major device number */ -static int maj = 0; +static int maj; /* * This is the per-channel data structure containing pointers, flags @@ -69,28 +70,25 @@ static int maj = 0; static struct ifx_ssc_port *isp; /* other forward declarations */ -static unsigned int ifx_ssc_get_kernel_clk (struct ifx_ssc_port *info); -static void tx_int (struct ifx_ssc_port *); +static unsigned int ifx_ssc_get_kernel_clk(struct ifx_ssc_port *info); +static void tx_int(struct ifx_ssc_port *); -extern unsigned int ifxmips_get_fpi_hz (void); -extern void ifxmips_mask_and_ack_irq (unsigned int irq_nr); +extern unsigned int ifxmips_get_fpi_hz(void); +extern void ifxmips_mask_and_ack_irq(unsigned int irq_nr); -static inline unsigned int -ifx_ssc_get_kernel_clk (struct ifx_ssc_port *info) +static inline unsigned int ifx_ssc_get_kernel_clk(struct ifx_ssc_port *info) { unsigned int rmc; rmc = (ifxmips_r32(IFXMIPS_SSC_CLC) & IFX_CLC_RUN_DIVIDER_MASK) >> IFX_CLC_RUN_DIVIDER_OFFSET; - if (rmc == 0) - { - printk ("ifx_ssc_get_kernel_clk rmc==0 \n"); + if (rmc == 0) { + printk("ifx_ssc_get_kernel_clk rmc==0 \n"); return 0; } - return ifxmips_get_fpi_hz () / rmc; + return ifxmips_get_fpi_hz() / rmc; } -inline static void -rx_int (struct ifx_ssc_port *info) +static inline void rx_int(struct ifx_ssc_port *info) { int fifo_fill_lev, bytes_in_buf, i; unsigned long tmp_val; @@ -99,9 +97,9 @@ rx_int (struct ifx_ssc_port *info) /* number of words waiting in the RX FIFO */ fifo_fill_lev = (ifxmips_r32(IFXMIPS_SSC_FSTAT) & IFX_SSC_FSTAT_RECEIVED_WORDS_MASK) >> IFX_SSC_FSTAT_RECEIVED_WORDS_OFFSET; bytes_in_buf = info->rxbuf_end - info->rxbuf_ptr; - // transfer with 32 bits per entry + /* transfer with 32 bits per entry */ while ((bytes_in_buf >= 4) && (fifo_fill_lev > 0)) { - tmp_ptr = (unsigned long *) info->rxbuf_ptr; + tmp_ptr = (unsigned long *)info->rxbuf_ptr; *tmp_ptr = ifxmips_r32(IFXMIPS_SSC_RB); info->rxbuf_ptr += 4; info->stats.rxBytes += 4; @@ -109,7 +107,7 @@ rx_int (struct ifx_ssc_port *info) bytes_in_buf -= 4; } - // now do the rest as mentioned in STATE.RXBV + /* now do the rest as mentioned in STATE.RXBV */ while ((bytes_in_buf > 0) && (fifo_fill_lev > 0)) { rx_valid_cnt = (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_RX_BYTE_VALID_MASK) >> IFX_SSC_STATE_RX_BYTE_VALID_OFFSET; if (rx_valid_cnt == 0) @@ -120,8 +118,7 @@ rx_int (struct ifx_ssc_port *info) tmp_val = ifxmips_r32(IFXMIPS_SSC_RB); - for (i = 0; i < rx_valid_cnt; i++) - { + for (i = 0; i < rx_valid_cnt; i++) { *info->rxbuf_ptr = (tmp_val >> (8 * (rx_valid_cnt - i - 1))) & 0xff; bytes_in_buf--; info->rxbuf_ptr++; @@ -129,13 +126,11 @@ rx_int (struct ifx_ssc_port *info) info->stats.rxBytes += rx_valid_cnt; } - // check if transfer is complete - if (info->rxbuf_ptr >= info->rxbuf_end) - { + /* check if transfer is complete */ + if (info->rxbuf_ptr >= info->rxbuf_end) { disable_irq(IFXMIPS_SSC_RIR); - wake_up_interruptible (&info->rwait); - } else if ((info->opts.modeRxTx == IFX_SSC_MODE_RX) && (ifxmips_r32(IFXMIPS_SSC_RXCNT) == 0)) - { + wake_up_interruptible(&info->rwait); + } else if ((info->opts.modeRxTx == IFX_SSC_MODE_RX) && (ifxmips_r32(IFXMIPS_SSC_RXCNT) == 0)) { if (info->rxbuf_end - info->rxbuf_ptr < IFX_SSC_RXREQ_BLOCK_SIZE) ifxmips_w32((info->rxbuf_end - info->rxbuf_ptr) << IFX_SSC_RXREQ_RXCOUNT_OFFSET, IFXMIPS_SSC_RXREQ); else @@ -143,13 +138,12 @@ rx_int (struct ifx_ssc_port *info) } } -inline static void -tx_int (struct ifx_ssc_port *info) +static inline void tx_int(struct ifx_ssc_port *info) { int fifo_space, fill, i; fifo_space = ((ifxmips_r32(IFXMIPS_SSC_ID) & IFX_SSC_PERID_TXFS_MASK) >> IFX_SSC_PERID_TXFS_OFFSET) - - ((ifxmips_r32(IFXMIPS_SSC_FSTAT) & IFX_SSC_FSTAT_TRANSMIT_WORDS_MASK) >> IFX_SSC_FSTAT_TRANSMIT_WORDS_OFFSET); + -((ifxmips_r32(IFXMIPS_SSC_FSTAT) & IFX_SSC_FSTAT_TRANSMIT_WORDS_MASK) >> IFX_SSC_FSTAT_TRANSMIT_WORDS_OFFSET); if (fifo_space == 0) return; @@ -159,71 +153,64 @@ tx_int (struct ifx_ssc_port *info) if (fill > fifo_space * 4) fill = fifo_space * 4; - for (i = 0; i < fill / 4; i++) - { - // at first 32 bit access - ifxmips_w32(*(UINT32 *) info->txbuf_ptr, IFXMIPS_SSC_TB); + for (i = 0; i < fill / 4; i++) { + /* at first 32 bit access */ + ifxmips_w32(*(UINT32 *)info->txbuf_ptr, IFXMIPS_SSC_TB); info->txbuf_ptr += 4; } fifo_space -= fill / 4; info->stats.txBytes += fill & ~0x3; fill &= 0x3; - if ((fifo_space > 0) & (fill > 1)) - { - // trailing 16 bit access - WRITE_PERIPHERAL_REGISTER_16 (*(UINT16 *) info->txbuf_ptr, info->mapbase + IFX_SSC_TB); + if ((fifo_space > 0) & (fill > 1)) { + /* trailing 16 bit access */ + WRITE_PERIPHERAL_REGISTER_16(*(UINT16 *)info->txbuf_ptr, info->mapbase + IFX_SSC_TB); info->txbuf_ptr += 2; info->stats.txBytes += 2; fifo_space--; fill -= 2; } - if ((fifo_space > 0) & (fill > 0)) - { - // trailing 8 bit access - WRITE_PERIPHERAL_REGISTER_8 (*(UINT8 *) info->txbuf_ptr, info->mapbase + IFX_SSC_TB); + if ((fifo_space > 0) & (fill > 0)) { + /* trailing 8 bit access */ + WRITE_PERIPHERAL_REGISTER_8(*(UINT8 *)info->txbuf_ptr, info->mapbase + IFX_SSC_TB); info->txbuf_ptr++; info->stats.txBytes++; } - // check if transmission complete - if (info->txbuf_ptr >= info->txbuf_end) - { + /* check if transmission complete */ + if (info->txbuf_ptr >= info->txbuf_end) { disable_irq(IFXMIPS_SSC_TIR); - kfree (info->txbuf); + kfree(info->txbuf); info->txbuf = NULL; } } -irqreturn_t -ifx_ssc_rx_int (int irq, void *dev_id) +irqreturn_t ifx_ssc_rx_int(int irq, void *dev_id) { - struct ifx_ssc_port *info = (struct ifx_ssc_port *) dev_id; - rx_int (info); + struct ifx_ssc_port *info = (struct ifx_ssc_port *)dev_id; + rx_int(info); return IRQ_HANDLED; } -irqreturn_t -ifx_ssc_tx_int (int irq, void *dev_id) +irqreturn_t ifx_ssc_tx_int(int irq, void *dev_id) { - struct ifx_ssc_port *info = (struct ifx_ssc_port *) dev_id; - tx_int (info); + struct ifx_ssc_port *info = (struct ifx_ssc_port *)dev_id; + tx_int(info); return IRQ_HANDLED; } -irqreturn_t -ifx_ssc_err_int (int irq, void *dev_id) +irqreturn_t ifx_ssc_err_int(int irq, void *dev_id) { - struct ifx_ssc_port *info = (struct ifx_ssc_port *) dev_id; + struct ifx_ssc_port *info = (struct ifx_ssc_port *)dev_id; unsigned int state; unsigned int write_back = 0; unsigned long flags; - local_irq_save (flags); + local_irq_save(flags); state = ifxmips_r32(IFXMIPS_SSC_STATE); if ((state & IFX_SSC_STATE_RX_UFL) != 0) { @@ -254,54 +241,53 @@ ifx_ssc_err_int (int irq, void *dev_id) if (write_back) ifxmips_w32(write_back, IFXMIPS_SSC_WHBSTATE); - local_irq_restore (flags); + local_irq_restore(flags); return IRQ_HANDLED; } -static void -ifx_ssc_abort (struct ifx_ssc_port *info) +static void ifx_ssc_abort(struct ifx_ssc_port *info) { unsigned long flags; bool enabled; - local_irq_save (flags); + local_irq_save(flags); disable_irq(IFXMIPS_SSC_RIR); disable_irq(IFXMIPS_SSC_TIR); disable_irq(IFXMIPS_SSC_EIR); - local_irq_restore (flags); + local_irq_restore(flags); - // disable SSC (also aborts a receive request!) - // ### TO DO: Perhaps it's better to abort after the receiption of a - // complete word. The disable cuts the transmission immediatly and - // releases the chip selects. This could result in unpredictable - // behavior of connected external devices! + /* disable SSC(also aborts a receive request!) */ + /* ### TO DO: Perhaps it's better to abort after the receiption of a + complete word. The disable cuts the transmission immediatly and + releases the chip selects. This could result in unpredictable + behavior of connected external devices! + */ enabled = (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_IS_ENABLED) != 0; ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE); - // flush fifos + /* flush fifos */ ifxmips_w32(IFX_SSC_XFCON_FIFO_FLUSH, IFXMIPS_SSC_TXFCON); ifxmips_w32(IFX_SSC_XFCON_FIFO_FLUSH, IFXMIPS_SSC_RXFCON); - // free txbuf - if (info->txbuf != NULL) - { - kfree (info->txbuf); + /* free txbuf */ + if (info->txbuf != NULL) { + kfree(info->txbuf); info->txbuf = NULL; } - // wakeup read process + /* wakeup read process */ if (info->rxbuf != NULL) - wake_up_interruptible (&info->rwait); + wake_up_interruptible(&info->rwait); - // clear pending int's + /* clear pending int's */ ifxmips_mask_and_ack_irq(IFXMIPS_SSC_RIR); ifxmips_mask_and_ack_irq(IFXMIPS_SSC_TIR); ifxmips_mask_and_ack_irq(IFXMIPS_SSC_EIR); - // clear error flags + /* clear error flags */ ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ALL_ERROR, IFXMIPS_SSC_WHBSTATE); if (enabled) @@ -313,19 +299,17 @@ ifx_ssc_abort (struct ifx_ssc_port *info) * This routine is called whenever a port is opened. It enforces * exclusive opening of a port and enables interrupts, etc. */ -int -ifx_ssc_open (struct inode *inode, struct file *filp) +int ifx_ssc_open(struct inode *inode, struct file *filp) { struct ifx_ssc_port *info; int line; int from_kernel = 0; - if ((inode == (struct inode *) 0) || (inode == (struct inode *) 1)) { + if ((inode == (struct inode *)0) || (inode == (struct inode *)1)) { from_kernel = 1; line = (int) inode; - } else { - line = MINOR (filp->f_dentry->d_inode->i_rdev); - } + } else + line = MINOR(filp->f_dentry->d_inode->i_rdev); /* don't open more minor devices than we can support */ if (line < 0 || line >= PORT_CNT) @@ -353,7 +337,7 @@ ifx_ssc_open (struct inode *inode, struct file *filp) /* clear all error bits */ ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ALL_ERROR, IFXMIPS_SSC_WHBSTATE); - // clear pending interrupts + /* clear pending interrupts */ ifxmips_mask_and_ack_irq(IFXMIPS_SSC_RIR); ifxmips_mask_and_ack_irq(IFXMIPS_SSC_TIR); ifxmips_mask_and_ack_irq(IFXMIPS_SSC_EIR); @@ -364,16 +348,15 @@ ifx_ssc_open (struct inode *inode, struct file *filp) } EXPORT_SYMBOL(ifx_ssc_open); -int -ifx_ssc_close (struct inode *inode, struct file *filp) +int ifx_ssc_close(struct inode *inode, struct file *filp) { struct ifx_ssc_port *info; int idx; - if ((inode == (struct inode *) 0) || (inode == (struct inode *) 1)) + if ((inode == (struct inode *)0) || (inode == (struct inode *)1)) idx = (int) inode; else - idx = MINOR (filp->f_dentry->d_inode->i_rdev); + idx = MINOR(filp->f_dentry->d_inode->i_rdev); if (idx < 0 || idx >= PORT_CNT) return -ENXIO; @@ -392,26 +375,25 @@ ifx_ssc_close (struct inode *inode, struct file *filp) } EXPORT_SYMBOL(ifx_ssc_close); -static ssize_t -ifx_ssc_read_helper_poll (struct ifx_ssc_port *info, char *buf, size_t len, int from_kernel) +static ssize_t ifx_ssc_read_helper_poll(struct ifx_ssc_port *info, char *buf, + size_t len, int from_kernel) { ssize_t ret_val; unsigned long flags; if (info->opts.modeRxTx == IFX_SSC_MODE_TX) return -EFAULT; - local_irq_save (flags); + local_irq_save(flags); info->rxbuf_ptr = info->rxbuf; info->rxbuf_end = info->rxbuf + len; - local_irq_restore (flags); + local_irq_restore(flags); /* Vinetic driver always works in IFX_SSC_MODE_RXTX */ /* TXRX in poll mode */ - while (info->rxbuf_ptr < info->rxbuf_end) - { + while (info->rxbuf_ptr < info->rxbuf_end) { if (info->txbuf_ptr < info->txbuf_end) - tx_int (info); + tx_int(info); - rx_int (info); + rx_int(info); }; ret_val = info->rxbuf_ptr - info->rxbuf; @@ -419,31 +401,29 @@ ifx_ssc_read_helper_poll (struct ifx_ssc_port *info, char *buf, size_t len, int return ret_val; } -static ssize_t -ifx_ssc_read_helper (struct ifx_ssc_port *info, char *buf, size_t len, int from_kernel) +static ssize_t ifx_ssc_read_helper(struct ifx_ssc_port *info, char *buf, + size_t len, int from_kernel) { ssize_t ret_val; unsigned long flags; - DECLARE_WAITQUEUE (wait, current); + DECLARE_WAITQUEUE(wait, current); if (info->opts.modeRxTx == IFX_SSC_MODE_TX) return -EFAULT; - local_irq_save (flags); + local_irq_save(flags); info->rxbuf_ptr = info->rxbuf; info->rxbuf_end = info->rxbuf + len; - if (info->opts.modeRxTx == IFX_SSC_MODE_RXTX) - { - if ((info->txbuf == NULL) || (info->txbuf != info->txbuf_ptr) || (info->txbuf_end != len + info->txbuf)) - { - local_irq_restore (flags); - printk ("IFX SSC - %s: write must be called before calling " "read in combined RX/TX!\n", __func__); + if (info->opts.modeRxTx == IFX_SSC_MODE_RXTX) { + if ((info->txbuf == NULL) || (info->txbuf != info->txbuf_ptr) || (info->txbuf_end != len + info->txbuf)) { + local_irq_restore(flags); + printk("IFX SSC - %s: write must be called before calling " "read in combined RX/TX!\n", __func__); return -EFAULT; } local_irq_restore(flags); - tx_int (info); + tx_int(info); if (info->txbuf_ptr < info->txbuf_end) enable_irq(IFXMIPS_SSC_TIR); @@ -460,18 +440,17 @@ ifx_ssc_read_helper (struct ifx_ssc_port *info, char *buf, size_t len, int from_ ifxmips_w32(IFX_SSC_RXREQ_BLOCK_SIZE << IFX_SSC_RXREQ_RXCOUNT_OFFSET, IFXMIPS_SSC_RXREQ); } - __add_wait_queue (&info->rwait, &wait); - set_current_state (TASK_INTERRUPTIBLE); + __add_wait_queue(&info->rwait, &wait); + set_current_state(TASK_INTERRUPTIBLE); do { - local_irq_save (flags); + local_irq_save(flags); if (info->rxbuf_ptr >= info->rxbuf_end) break; - local_irq_restore (flags); + local_irq_restore(flags); - if (signal_pending (current)) - { + if (signal_pending(current)) { ret_val = -ERESTARTSYS; goto out; } @@ -479,38 +458,33 @@ ifx_ssc_read_helper (struct ifx_ssc_port *info, char *buf, size_t len, int from_ } while (1); ret_val = info->rxbuf_ptr - info->rxbuf; - local_irq_restore (flags); + local_irq_restore(flags); out: current->state = TASK_RUNNING; - __remove_wait_queue (&info->rwait, &wait); + __remove_wait_queue(&info->rwait, &wait); - return (ret_val); + return ret_val; } -static ssize_t -ifx_ssc_write_helper (struct ifx_ssc_port *info, const char *buf, - size_t len, int from_kernel) +static ssize_t ifx_ssc_write_helper(struct ifx_ssc_port *info, const char *buf, + size_t len, int from_kernel) { if (info->opts.modeRxTx == IFX_SSC_MODE_RX) return -EFAULT; info->txbuf_ptr = info->txbuf; info->txbuf_end = len + info->txbuf; - if (info->opts.modeRxTx == IFX_SSC_MODE_TX) - { - tx_int (info); + if (info->opts.modeRxTx == IFX_SSC_MODE_TX) { + tx_int(info); if (info->txbuf_ptr < info->txbuf_end) - { enable_irq(IFXMIPS_SSC_TIR); - } } return len; } -ssize_t -ifx_ssc_kread (int port, char *kbuf, size_t len) +ssize_t ifx_ssc_kread(int port, char *kbuf, size_t len) { struct ifx_ssc_port *info; ssize_t ret_val; @@ -523,20 +497,18 @@ ifx_ssc_kread (int port, char *kbuf, size_t len) info = &isp[port]; - if (info->rxbuf != NULL) - { - printk ("SSC device busy\n"); + if (info->rxbuf != NULL) { + printk("SSC device busy\n"); return -EBUSY; } info->rxbuf = kbuf; - if (info->rxbuf == NULL) - { - printk ("SSC device error\n"); + if (info->rxbuf == NULL) { + printk("SSC device error\n"); return -EINVAL; } - ret_val = ifx_ssc_read_helper_poll (info, kbuf, len, 1); + ret_val = ifx_ssc_read_helper_poll(info, kbuf, len, 1); info->rxbuf = NULL; disable_irq(IFXMIPS_SSC_RIR); @@ -545,8 +517,7 @@ ifx_ssc_kread (int port, char *kbuf, size_t len) } EXPORT_SYMBOL(ifx_ssc_kread); -ssize_t -ifx_ssc_kwrite (int port, const char *kbuf, size_t len) +ssize_t ifx_ssc_kwrite(int port, const char *kbuf, size_t len) { struct ifx_ssc_port *info; ssize_t ret_val; @@ -559,13 +530,13 @@ ifx_ssc_kwrite (int port, const char *kbuf, size_t len) info = &isp[port]; - // check if transmission in progress + /* check if transmission in progress */ if (info->txbuf != NULL) return -EBUSY; - info->txbuf = (char *) kbuf; + info->txbuf = (char *)kbuf; - ret_val = ifx_ssc_write_helper (info, info->txbuf, len, 1); + ret_val = ifx_ssc_write_helper(info, info->txbuf, len, 1); if (ret_val < 0) info->txbuf = NULL; @@ -574,72 +545,68 @@ ifx_ssc_kwrite (int port, const char *kbuf, size_t len) } EXPORT_SYMBOL(ifx_ssc_kwrite); -static ssize_t -ifx_ssc_read (struct file *filp, char *ubuf, size_t len, loff_t * off) +static ssize_t ifx_ssc_read(struct file *filp, char *ubuf, size_t len, loff_t *off) { ssize_t ret_val; int idx; struct ifx_ssc_port *info; - idx = MINOR (filp->f_dentry->d_inode->i_rdev); + idx = MINOR(filp->f_dentry->d_inode->i_rdev); info = &isp[idx]; if (info->rxbuf != NULL) return -EBUSY; - info->rxbuf = kmalloc (len + 3, GFP_KERNEL); + info->rxbuf = kmalloc(len + 3, GFP_KERNEL); if (info->rxbuf == NULL) return -ENOMEM; - ret_val = ifx_ssc_read_helper (info, info->rxbuf, len, 0); - if (copy_to_user ((void *) ubuf, info->rxbuf, ret_val) != 0) + ret_val = ifx_ssc_read_helper(info, info->rxbuf, len, 0); + if (copy_to_user((void *)ubuf, info->rxbuf, ret_val) != 0) ret_val = -EFAULT; disable_irq(IFXMIPS_SSC_RIR); - kfree (info->rxbuf); + kfree(info->rxbuf); info->rxbuf = NULL; - return (ret_val); + return ret_val; } -static ssize_t -ifx_ssc_write (struct file *filp, const char *ubuf, size_t len, loff_t * off) +static ssize_t ifx_ssc_write(struct file *filp, const char *ubuf, size_t len, loff_t *off) { int idx; struct ifx_ssc_port *info; int ret_val; if (len == 0) - return (0); + return 0; - idx = MINOR (filp->f_dentry->d_inode->i_rdev); + idx = MINOR(filp->f_dentry->d_inode->i_rdev); info = &isp[idx]; if (info->txbuf != NULL) return -EBUSY; - info->txbuf = kmalloc (len + 3, GFP_KERNEL); + info->txbuf = kmalloc(len + 3, GFP_KERNEL); if (info->txbuf == NULL) return -ENOMEM; - ret_val = copy_from_user (info->txbuf, ubuf, len); + ret_val = copy_from_user(info->txbuf, ubuf, len); if (ret_val == 0) - ret_val = ifx_ssc_write_helper (info, info->txbuf, len, 0); + ret_val = ifx_ssc_write_helper(info, info->txbuf, len, 0); else ret_val = -EFAULT; - if (ret_val < 0) - { - kfree (info->txbuf); + if (ret_val < 0) { + kfree(info->txbuf); info->txbuf = NULL; } - return (ret_val); + return ret_val; } -static struct ifx_ssc_frm_status * -ifx_ssc_frm_status_get (struct ifx_ssc_port *info) +static struct ifx_ssc_frm_status *ifx_ssc_frm_status_get(struct ifx_ssc_port *info) { unsigned long tmp; @@ -655,9 +622,7 @@ ifx_ssc_frm_status_get (struct ifx_ssc_port *info) return &info->frm_status; } - -static struct ifx_ssc_frm_opts * -ifx_ssc_frm_control_get (struct ifx_ssc_port *info) +static struct ifx_ssc_frm_opts *ifx_ssc_frm_control_get(struct ifx_ssc_port *info) { unsigned long tmp; @@ -672,8 +637,7 @@ ifx_ssc_frm_control_get (struct ifx_ssc_port *info) return &info->frm_opts; } -static int -ifx_ssc_frm_control_set (struct ifx_ssc_port *info) +static int ifx_ssc_frm_control_set(struct ifx_ssc_port *info) { unsigned long tmp; @@ -685,12 +649,12 @@ ifx_ssc_frm_control_set (struct ifx_ssc_port *info) || (info->frm_opts.IdleClock & ~(IFX_SSC_SFCON_PAUSE_CLOCK_MASK >> IFX_SSC_SFCON_PAUSE_CLOCK_OFFSET))) return -EINVAL; - // read interrupt bits (they're not changed here) + /* read interrupt bits(they're not changed here) */ tmp = ifxmips_r32(IFXMIPS_SSC_SFCON) & (IFX_SSC_SFCON_FIR_ENABLE_BEFORE_PAUSE | IFX_SSC_SFCON_FIR_ENABLE_AFTER_PAUSE); - // set all values with respect to it's bit position (for data and pause - // length set N-1) + /* set all values with respect to it's bit position(for data and pause + length set N-1) */ tmp = (info->frm_opts.DataLength - 1) << IFX_SSC_SFCON_DATA_LENGTH_OFFSET; tmp |= (info->frm_opts.PauseLength - 1) << IFX_SSC_SFCON_PAUSE_LENGTH_OFFSET; tmp |= info->frm_opts.IdleData << IFX_SSC_SFCON_PAUSE_DATA_OFFSET; @@ -703,8 +667,7 @@ ifx_ssc_frm_control_set (struct ifx_ssc_port *info) return 0; } -static int -ifx_ssc_rxtx_mode_set (struct ifx_ssc_port *info, unsigned int val) +static int ifx_ssc_rxtx_mode_set(struct ifx_ssc_port *info, unsigned int val) { unsigned long tmp; @@ -722,8 +685,7 @@ ifx_ssc_rxtx_mode_set (struct ifx_ssc_port *info, unsigned int val) return 0; } -static int -ifx_ssc_sethwopts (struct ifx_ssc_port *info) +static int ifx_ssc_sethwopts(struct ifx_ssc_port *info) { unsigned long flags, bits; struct ifx_ssc_hwopts *opts = &info->opts; @@ -754,8 +716,7 @@ ifx_ssc_sethwopts (struct ifx_ssc_port *info) if (opts->clockPolarity) bits |= IFX_SSC_CON_CLOCK_FALL; - switch (opts->modeRxTx) - { + switch (opts->modeRxTx) { case IFX_SSC_MODE_TX: bits |= IFX_SSC_CON_RX_OFF; break; @@ -764,27 +725,27 @@ ifx_ssc_sethwopts (struct ifx_ssc_port *info) break; } - local_irq_save (flags); + local_irq_save(flags); ifxmips_w32(bits, IFXMIPS_SSC_CON); ifxmips_w32((info->opts.gpoCs << IFX_SSC_GPOCON_ISCSB0_POS) | - (info->opts.gpoInv << IFX_SSC_GPOCON_INVOUT0_POS), IFXMIPS_SSC_GPOCON); + (info->opts.gpoInv << IFX_SSC_GPOCON_INVOUT0_POS), IFXMIPS_SSC_GPOCON); ifxmips_w32(info->opts.gpoCs << IFX_SSC_WHBGPOSTAT_SETOUT0_POS, IFXMIPS_SSC_WHBGPOSTAT); - //master mode + /* master mode */ if (opts->masterSelect) ifxmips_w32(IFX_SSC_WHBSTATE_SET_MASTER_SELECT, IFXMIPS_SSC_WHBSTATE); else ifxmips_w32(IFX_SSC_WHBSTATE_CLR_MASTER_SELECT, IFXMIPS_SSC_WHBSTATE); - // init serial framing + /* init serial framing */ ifxmips_w32(0, IFXMIPS_SSC_SFCON); /* set up the port pins */ - //check for general requirements to switch (external) pad/pin characteristics + /* check for general requirements to switch(external) pad/pin characteristics */ /* TODO: P0.9 SPI_CS4, P0.10 SPI_CS5, P 0.11 SPI_CS6, because of ASC0 */ /* p0.15 SPI_CS1(EEPROM), P0.13 SPI_CS3, */ - /* Set p0.15 to alternative 01, others to 00 (In/OUT) */ + /* Set p0.15 to alternative 01, others to 00(In/OUT) */ *(IFXMIPS_GPIO_P0_DIR) = (*IFXMIPS_GPIO_P0_DIR) | (0xA000); *(IFXMIPS_GPIO_P0_ALTSEL0) = (((*IFXMIPS_GPIO_P0_ALTSEL0) | (0x8000)) & (~(0x2000))); *(IFXMIPS_GPIO_P0_ALTSEL1) = (((*IFXMIPS_GPIO_P0_ALTSEL1) & (~0x8000)) & (~(0x2000))); @@ -800,13 +761,12 @@ ifx_ssc_sethwopts (struct ifx_ssc_port *info) /*TODO: CS4 CS5 CS6 */ *IFXMIPS_GPIO_P0_OUT = ((*IFXMIPS_GPIO_P0_OUT) | 0x2000); - local_irq_restore (flags); + local_irq_restore(flags); return 0; } -static int -ifx_ssc_set_baud (struct ifx_ssc_port *info, unsigned int baud) +static int ifx_ssc_set_baud(struct ifx_ssc_port *info, unsigned int baud) { unsigned int ifx_ssc_clock; unsigned int br; @@ -815,13 +775,12 @@ ifx_ssc_set_baud (struct ifx_ssc_port *info, unsigned int baud) int retval = 0; ifx_ssc_clock = ifx_ssc_get_kernel_clk(info); - if (ifx_ssc_clock == 0) - { + if (ifx_ssc_clock == 0) { retval = -EINVAL; goto out; } - local_irq_save (flags); + local_irq_save(flags); enabled = (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_IS_ENABLED); ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE); @@ -831,8 +790,8 @@ ifx_ssc_set_baud (struct ifx_ssc_port *info, unsigned int baud) if (br > 0xffff || ((br == 0) && ((ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_IS_MASTER) == 0))) { - local_irq_restore (flags); - printk ("%s: invalid baudrate %u\n", __func__, baud); + local_irq_restore(flags); + printk("%s: invalid baudrate %u\n", __func__, baud); return -EINVAL; } @@ -847,8 +806,7 @@ out: return retval; } -static int -ifx_ssc_hwinit (struct ifx_ssc_port *info) +static int ifx_ssc_hwinit(struct ifx_ssc_port *info) { unsigned long flags; bool enabled; @@ -856,26 +814,24 @@ ifx_ssc_hwinit (struct ifx_ssc_port *info) enabled = (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_IS_ENABLED); ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE); - if (ifx_ssc_sethwopts (info) < 0) - { - printk ("%s: setting the hardware options failed\n", __func__); + if (ifx_ssc_sethwopts(info) < 0) { + printk("%s: setting the hardware options failed\n", __func__); return -EINVAL; } - if (ifx_ssc_set_baud (info, info->baud) < 0) - { - printk ("%s: setting the baud rate failed\n", __func__); + if (ifx_ssc_set_baud(info, info->baud) < 0) { + printk("%s: setting the baud rate failed\n", __func__); return -EINVAL; } - local_irq_save (flags); + local_irq_save(flags); /* TX FIFO */ ifxmips_w32((IFX_SSC_DEF_TXFIFO_FL << IFX_SSC_XFCON_ITL_OFFSET) | IFX_SSC_XFCON_FIFO_ENABLE, IFXMIPS_SSC_TXFCON); /* RX FIFO */ ifxmips_w32((IFX_SSC_DEF_RXFIFO_FL << IFX_SSC_XFCON_ITL_OFFSET) | IFX_SSC_XFCON_FIFO_ENABLE, IFXMIPS_SSC_RXFCON); - local_irq_restore (flags); + local_irq_restore(flags); if (enabled) ifxmips_w32(IFX_SSC_WHBSTATE_SET_ENABLE, IFXMIPS_SSC_WHBSTATE); @@ -883,8 +839,8 @@ ifx_ssc_hwinit (struct ifx_ssc_port *info) return 0; } -int -ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigned long data) +int ifx_ssc_ioctl(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long data) { struct ifx_ssc_port *info; int line, ret_val = 0; @@ -892,49 +848,46 @@ ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigne unsigned long tmp; int from_kernel = 0; - if ((inode == (struct inode *) 0) || (inode == (struct inode *) 1)) - { + if ((inode == (struct inode *)0) || (inode == (struct inode *)1)) { from_kernel = 1; line = (int) inode; - } else { - line = MINOR (filp->f_dentry->d_inode->i_rdev); - } + } else + line = MINOR(filp->f_dentry->d_inode->i_rdev); if (line < 0 || line >= PORT_CNT) return -ENXIO; info = &isp[line]; - switch (cmd) - { + switch (cmd) { case IFX_SSC_STATS_READ: /* data must be a pointer to a struct ifx_ssc_statistics */ if (from_kernel) - memcpy ((void *) data, (void *) &info->stats, - sizeof (struct ifx_ssc_statistics)); - else if (copy_to_user ((void *) data, - (void *) &info->stats, - sizeof (struct ifx_ssc_statistics))) + memcpy((void *)data, (void *)&info->stats, + sizeof(struct ifx_ssc_statistics)); + else if (copy_to_user((void *)data, + (void *)&info->stats, + sizeof(struct ifx_ssc_statistics))) ret_val = -EFAULT; break; case IFX_SSC_STATS_RESET: /* just resets the statistics counters */ - memset ((void *) &info->stats, 0, - sizeof (struct ifx_ssc_statistics)); + memset((void *)&info->stats, 0, + sizeof(struct ifx_ssc_statistics)); break; case IFX_SSC_BAUD_SET: /* if the buffers are not empty then the port is */ /* busy and we shouldn't change things on-the-fly! */ if (!info->txbuf || !info->rxbuf || - (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_BUSY)) { + (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_BUSY)) { ret_val = -EBUSY; break; } /* misuse flags */ if (from_kernel) - flags = *((unsigned long *) data); - else if (copy_from_user ((void *) &flags, - (void *) data, sizeof (flags))) { + flags = *((unsigned long *)data); + else if (copy_from_user((void *)&flags, + (void *)data, sizeof(flags))) { ret_val = -EFAULT; break; } @@ -942,7 +895,7 @@ ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigne ret_val = -EINVAL; break; } - if (ifx_ssc_set_baud (info, flags) < 0) { + if (ifx_ssc_set_baud(info, flags) < 0) { ret_val = -EINVAL; break; } @@ -950,41 +903,41 @@ ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigne break; case IFX_SSC_BAUD_GET: if (from_kernel) - *((unsigned int *) data) = info->baud; - else if (copy_to_user ((void *) data, - (void *) &info->baud, - sizeof (unsigned long))) + *((unsigned int *)data) = info->baud; + else if (copy_to_user((void *)data, + (void *)&info->baud, + sizeof(unsigned long))) ret_val = -EFAULT; break; case IFX_SSC_RXTX_MODE_SET: if (from_kernel) - tmp = *((unsigned long *) data); - else if (copy_from_user ((void *) &tmp, - (void *) data, sizeof (tmp))) { + tmp = *((unsigned long *)data); + else if (copy_from_user((void *)&tmp, + (void *)data, sizeof(tmp))) { ret_val = -EFAULT; break; } - ret_val = ifx_ssc_rxtx_mode_set (info, tmp); + ret_val = ifx_ssc_rxtx_mode_set(info, tmp); break; case IFX_SSC_RXTX_MODE_GET: tmp = ifxmips_r32(IFXMIPS_SSC_CON) & (~(IFX_SSC_CON_RX_OFF | IFX_SSC_CON_TX_OFF)); if (from_kernel) - *((unsigned int *) data) = tmp; - else if (copy_to_user ((void *) data, - (void *) &tmp, sizeof (tmp))) + *((unsigned int *)data) = tmp; + else if (copy_to_user((void *)data, + (void *)&tmp, sizeof(tmp))) ret_val = -EFAULT; break; case IFX_SSC_ABORT: - ifx_ssc_abort (info); + ifx_ssc_abort(info); break; case IFX_SSC_GPO_OUT_SET: if (from_kernel) - tmp = *((unsigned long *) data); - else if (copy_from_user ((void *) &tmp, - (void *) data, sizeof (tmp))) { + tmp = *((unsigned long *)data); + else if (copy_from_user((void *)&tmp, + (void *)data, sizeof(tmp))) { ret_val = -EFAULT; break; } @@ -996,88 +949,86 @@ ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigne break; case IFX_SSC_GPO_OUT_CLR: if (from_kernel) - tmp = *((unsigned long *) data); - else if (copy_from_user ((void *) &tmp, (void *) data, sizeof (tmp))) { + tmp = *((unsigned long *)data); + else if (copy_from_user((void *)&tmp, (void *)data, sizeof(tmp))) { ret_val = -EFAULT; break; } if (tmp > IFX_SSC_MAX_GPO_OUT) ret_val = -EINVAL; - else { + else ifxmips_w32(1 << (tmp + IFX_SSC_WHBGPOSTAT_CLROUT0_POS), IFXMIPS_SSC_WHBGPOSTAT); - } break; case IFX_SSC_GPO_OUT_GET: tmp = ifxmips_r32(IFXMIPS_SSC_GPOSTAT); if (from_kernel) - *((unsigned int *) data) = tmp; - else if (copy_to_user ((void *) data, - (void *) &tmp, sizeof (tmp))) + *((unsigned int *)data) = tmp; + else if (copy_to_user((void *)data, + (void *)&tmp, sizeof(tmp))) ret_val = -EFAULT; break; case IFX_SSC_FRM_STATUS_GET: - ifx_ssc_frm_status_get (info); + ifx_ssc_frm_status_get(info); if (from_kernel) - memcpy ((void *) data, (void *) &info->frm_status, - sizeof (struct ifx_ssc_frm_status)); - else if (copy_to_user ((void *) data, - (void *) &info->frm_status, - sizeof (struct ifx_ssc_frm_status))) + memcpy((void *)data, (void *)&info->frm_status, + sizeof(struct ifx_ssc_frm_status)); + else if (copy_to_user((void *)data, + (void *)&info->frm_status, + sizeof(struct ifx_ssc_frm_status))) ret_val = -EFAULT; break; case IFX_SSC_FRM_CONTROL_GET: - ifx_ssc_frm_control_get (info); + ifx_ssc_frm_control_get(info); if (from_kernel) - memcpy ((void *) data, (void *) &info->frm_opts, - sizeof (struct ifx_ssc_frm_opts)); - else if (copy_to_user ((void *) data, - (void *) &info->frm_opts, - sizeof (struct ifx_ssc_frm_opts))) + memcpy((void *)data, (void *)&info->frm_opts, + sizeof(struct ifx_ssc_frm_opts)); + else if (copy_to_user((void *)data, + (void *)&info->frm_opts, + sizeof(struct ifx_ssc_frm_opts))) ret_val = -EFAULT; break; case IFX_SSC_FRM_CONTROL_SET: if (from_kernel) - memcpy ((void *) &info->frm_opts, (void *) data, - sizeof (struct ifx_ssc_frm_opts)); - else if (copy_to_user ((void *) &info->frm_opts, - (void *) data, - sizeof (struct ifx_ssc_frm_opts))) { + memcpy((void *)&info->frm_opts, (void *)data, + sizeof(struct ifx_ssc_frm_opts)); + else if (copy_to_user((void *)&info->frm_opts, + (void *)data, + sizeof(struct ifx_ssc_frm_opts))) { ret_val = -EFAULT; break; } - ret_val = ifx_ssc_frm_control_set (info); + ret_val = ifx_ssc_frm_control_set(info); break; case IFX_SSC_HWOPTS_SET: /* data must be a pointer to a struct ifx_ssc_hwopts */ /* if the buffers are not empty then the port is */ /* busy and we shouldn't change things on-the-fly! */ if (!info->txbuf || !info->rxbuf || - (ifxmips_r32(IFXMIPS_SSC_STATE) + (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_BUSY)) { ret_val = -EBUSY; break; } if (from_kernel) - memcpy ((void *) &info->opts, (void *) data, - sizeof (struct ifx_ssc_hwopts)); - else if (copy_from_user ((void *) &info->opts, - (void *) data, sizeof(struct ifx_ssc_hwopts))) { + memcpy((void *)&info->opts, (void *)data, + sizeof(struct ifx_ssc_hwopts)); + else if (copy_from_user((void *)&info->opts, + (void *)data, sizeof(struct ifx_ssc_hwopts))) { ret_val = -EFAULT; break; } - if (ifx_ssc_hwinit (info) < 0) { + if (ifx_ssc_hwinit(info) < 0) ret_val = -EIO; - } break; case IFX_SSC_HWOPTS_GET: /* data must be a pointer to a struct ifx_ssc_hwopts */ if (from_kernel) - memcpy ((void *) data, (void *) &info->opts, - sizeof (struct ifx_ssc_hwopts)); - else if (copy_to_user ((void *) data, - (void *) &info->opts, - sizeof (struct ifx_ssc_hwopts))) + memcpy((void *)data, (void *)&info->opts, + sizeof(struct ifx_ssc_hwopts)); + else if (copy_to_user((void *)data, + (void *)&info->opts, + sizeof(struct ifx_ssc_hwopts))) ret_val = -EFAULT; break; default: @@ -1089,16 +1040,15 @@ ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigne EXPORT_SYMBOL(ifx_ssc_ioctl); static struct file_operations ifx_ssc_fops = { - .owner = THIS_MODULE, - .read = ifx_ssc_read, - .write = ifx_ssc_write, - .ioctl = ifx_ssc_ioctl, - .open = ifx_ssc_open, - .release = ifx_ssc_close, + .owner = THIS_MODULE, + .read = ifx_ssc_read, + .write = ifx_ssc_write, + .ioctl = ifx_ssc_ioctl, + .open = ifx_ssc_open, + .release = ifx_ssc_close, }; -int __init -ifx_ssc_init (void) +int __init ifx_ssc_init(void) { struct ifx_ssc_port *info; int i, nbytes; @@ -1107,27 +1057,25 @@ ifx_ssc_init (void) ret_val = -ENOMEM; nbytes = PORT_CNT * sizeof(struct ifx_ssc_port); - isp = (struct ifx_ssc_port*)kmalloc(nbytes, GFP_KERNEL); + isp = kmalloc(nbytes, GFP_KERNEL); - if (isp == NULL) - { + if (isp == NULL) { printk("%s: no memory for isp\n", __func__); - return (ret_val); + return ret_val; } memset(isp, 0, nbytes); ret_val = -ENXIO; - if ((i = register_chrdev (maj, "ssc", &ifx_ssc_fops)) < 0) - { - printk ("Unable to register major %d for the Infineon SSC\n", maj); - if (maj == 0) - { + i = register_chrdev(maj, "ssc", &ifx_ssc_fops); + if (i < 0) { + printk("Unable to register major %d for the Infineon SSC\n", maj); + if (maj == 0) { goto errout; } else { maj = 0; - if ((i = register_chrdev (maj, "ssc", &ifx_ssc_fops)) < 0) - { - printk ("Unable to register major %d for the Infineon SSC\n", maj); + i = register_chrdev(maj, "ssc", &ifx_ssc_fops); + if (i < 0) { + printk("Unable to register major %d for the Infineon SSC\n", maj); goto errout; } } @@ -1161,56 +1109,53 @@ ifx_ssc_init (void) info->rxbuf = NULL; info->txbuf = NULL; /* values specific to SSC1 */ - if (i == 0) { + if (i == 0) info->mapbase = IFXMIPS_SSC_BASE_ADDR; - } ifxmips_w32(IFX_SSC_DEF_RMC << IFX_CLC_RUN_DIVIDER_OFFSET, IFXMIPS_SSC_CLC); - init_waitqueue_head (&info->rwait); + init_waitqueue_head(&info->rwait); - local_irq_save (flags); + local_irq_save(flags); - // init serial framing register + /* init serial framing register */ ifxmips_w32(IFX_SSC_DEF_SFCON, IFXMIPS_SSC_SFCON); ret_val = request_irq(IFXMIPS_SSC_TIR, ifx_ssc_tx_int, IRQF_DISABLED, "ifx_ssc_tx", info); - if (ret_val) - { + if (ret_val) { printk("%s: unable to get irq %d\n", __func__, IFXMIPS_SSC_TIR); local_irq_restore(flags); goto errout; } ret_val = request_irq(IFXMIPS_SSC_RIR, ifx_ssc_rx_int, IRQF_DISABLED, "ifx_ssc_rx", info); - if (ret_val) - { - printk ("%s: unable to get irq %d\n", __func__, IFXMIPS_SSC_RIR); - local_irq_restore (flags); + if (ret_val) { + printk("%s: unable to get irq %d\n", __func__, IFXMIPS_SSC_RIR); + local_irq_restore(flags); goto irqerr; } ret_val = request_irq(IFXMIPS_SSC_EIR, ifx_ssc_err_int, IRQF_DISABLED, "ifx_ssc_err", info); - if (ret_val) - { - printk ("%s: unable to get irq %d\n", __func__, IFXMIPS_SSC_EIR); - local_irq_restore (flags); + if (ret_val) { + printk("%s: unable to get irq %d\n", __func__, IFXMIPS_SSC_EIR); + local_irq_restore(flags); goto irqerr; } ifxmips_w32(IFX_SSC_DEF_IRNEN, IFXMIPS_SSC_IRN); - //enable_irq(IFXMIPS_SSC_TIR); - //enable_irq(IFXMIPS_SSC_RIR); - //enable_irq(IFXMIPS_SSC_EIR); + #if 0 + enable_irq(IFXMIPS_SSC_TIR); + enable_irq(IFXMIPS_SSC_RIR); + enable_irq(IFXMIPS_SSC_EIR); + #endif - local_irq_restore (flags); + local_irq_restore(flags); } for (i = 0; i < PORT_CNT; i++) { info = &isp[i]; - if (ifx_ssc_hwinit (info) < 0) - { - printk ("%s: hardware init failed for port %d\n", __func__, i); + if (ifx_ssc_hwinit(info) < 0) { + printk("%s: hardware init failed for port %d\n", __func__, i); goto irqerr; } } @@ -1223,12 +1168,11 @@ irqerr: free_irq(IFXMIPS_SSC_RIR, &isp[0]); free_irq(IFXMIPS_SSC_EIR, &isp[0]); errout: - kfree (isp); - return (ret_val); + kfree(isp); + return ret_val; } -void -ifx_ssc_cleanup_module (void) +void __exit ifx_ssc_cleanup_module(void) { int i; @@ -1238,39 +1182,37 @@ ifx_ssc_cleanup_module (void) free_irq(IFXMIPS_SSC_RIR, &isp[i]); free_irq(IFXMIPS_SSC_EIR, &isp[i]); } - kfree (isp); + kfree(isp); } module_init(ifx_ssc_init); module_exit(ifx_ssc_cleanup_module); - -inline int -ifx_ssc_cs_low (u32 pin) +inline int ifx_ssc_cs_low(u32 pin) { int ret = 0; - if ((ret = ifx_ssc_ioctl ((struct inode *) 0, NULL, IFX_SSC_GPO_OUT_CLR, (unsigned long) &pin))) - printk ("clear CS %d fails\n", pin); - wmb (); + ret = ifx_ssc_ioctl((struct inode *)0, NULL, IFX_SSC_GPO_OUT_CLR, (unsigned long) &pin); + if (ret) + printk("clear CS %d fails\n", pin); + wmb(); return ret; } EXPORT_SYMBOL(ifx_ssc_cs_low); -inline int -ifx_ssc_cs_high (u32 pin) +inline int ifx_ssc_cs_high(u32 pin) { int ret = 0; - if ((ret = ifx_ssc_ioctl((struct inode *) 0, NULL, IFX_SSC_GPO_OUT_SET, (unsigned long) &pin))) - printk ("set CS %d fails\n", pin); - wmb (); + ret = ifx_ssc_ioctl((struct inode *)0, NULL, IFX_SSC_GPO_OUT_SET, (unsigned long) &pin); + if (ret) + printk("set CS %d fails\n", pin); + wmb(); return ret; } EXPORT_SYMBOL(ifx_ssc_cs_high); -static int -ssc_session (char *tx_buf, u32 tx_len, char *rx_buf, u32 rx_len) +static int ssc_session(char *tx_buf, u32 tx_len, char *rx_buf, u32 rx_len) { int ret = 0; @@ -1280,132 +1222,111 @@ ssc_session (char *tx_buf, u32 tx_len, char *rx_buf, u32 rx_len) u8 mode = 0; if (tx_buf == NULL && tx_len == 0 && rx_buf == NULL && rx_len == 0) { - printk ("invalid parameters\n"); + printk("invalid parameters\n"); ret = -EINVAL; goto ssc_session_exit; - } - else if (tx_buf == NULL || tx_len == 0) { + } else if (tx_buf == NULL || tx_len == 0) { if (rx_buf != NULL && rx_len != 0) { mode = IFX_SSC_MODE_RX; - } - else { - printk ("invalid parameters\n"); + } else { + printk("invalid parameters\n"); ret = -EINVAL; goto ssc_session_exit; } - } - else if (rx_buf == NULL || rx_len == 0) { - if (tx_buf != NULL && tx_len != 0) { + } else if (rx_buf == NULL || rx_len == 0) { + if (tx_buf != NULL && tx_len != 0) mode = IFX_SSC_MODE_TX; - } else { - printk ("invalid parameters\n"); + printk("invalid parameters\n"); ret = -EINVAL; goto ssc_session_exit; } - } - else { + } else mode = IFX_SSC_MODE_RXTX; - } - if (mode == IFX_SSC_MODE_RXTX) { + if (mode == IFX_SSC_MODE_RXTX) eff_size = tx_len + rx_len; - } - else if (mode == IFX_SSC_MODE_RX) { + else if (mode == IFX_SSC_MODE_RX) eff_size = rx_len; - } - else { + else eff_size = tx_len; - } //4 bytes alignment, required by driver /* change by TaiCheng */ //if (in_irq()){ if (1) { - ssc_tx_buf = - (char *) kmalloc (sizeof (char) * - ((eff_size + 3) & (~3)), + ssc_tx_buf = kmalloc(sizeof(char) * + ((eff_size + 3) & (~3)), GFP_ATOMIC); - ssc_rx_buf = - (char *) kmalloc (sizeof (char) * - ((eff_size + 3) & (~3)), + ssc_rx_buf = kmalloc(sizeof(char) * + ((eff_size + 3) & (~3)), GFP_ATOMIC); - } - else { - ssc_tx_buf = - (char *) kmalloc (sizeof (char) * - ((eff_size + 3) & (~3)), + } else { + ssc_tx_buf = kmalloc(sizeof(char) * + ((eff_size + 3) & (~3)), GFP_KERNEL); - ssc_rx_buf = - (char *) kmalloc (sizeof (char) * - ((eff_size + 3) & (~3)), + ssc_rx_buf = kmalloc(sizeof(char) * + ((eff_size + 3) & (~3)), GFP_KERNEL); } if (ssc_tx_buf == NULL || ssc_rx_buf == NULL) { - printk ("no memory for size of %d\n", eff_size); + printk("no memory for size of %d\n", eff_size); ret = -ENOMEM; goto ssc_session_exit; } - memset ((void *) ssc_tx_buf, 0, eff_size); - memset ((void *) ssc_rx_buf, 0, eff_size); + memset((void *)ssc_tx_buf, 0, eff_size); + memset((void *)ssc_rx_buf, 0, eff_size); - if (tx_len > 0) { - memcpy (ssc_tx_buf, tx_buf, tx_len); - } + if (tx_len > 0) + memcpy(ssc_tx_buf, tx_buf, tx_len); - ret = ifx_ssc_kwrite (0, ssc_tx_buf, eff_size); + ret = ifx_ssc_kwrite(0, ssc_tx_buf, eff_size); - if (ret > 0) { - ssc_tx_buf = NULL; //should be freed by ifx_ssc_kwrite - } + if (ret > 0) + ssc_tx_buf = NULL; /* should be freed by ifx_ssc_kwrite */ if (ret != eff_size) { - printk ("ifx_ssc_write return %d\n", ret); + printk("ifx_ssc_write return %d\n", ret); goto ssc_session_exit; } - ret = ifx_ssc_kread (0, ssc_rx_buf, eff_size); + ret = ifx_ssc_kread(0, ssc_rx_buf, eff_size); if (ret != eff_size) { - printk ("ifx_ssc_read return %d\n", ret); + printk("ifx_ssc_read return %d\n", ret); goto ssc_session_exit; } - memcpy (rx_buf, ssc_rx_buf + tx_len, rx_len); + memcpy(rx_buf, ssc_rx_buf + tx_len, rx_len); - if (mode == IFX_SSC_MODE_TX) { + if (mode == IFX_SSC_MODE_TX) ret = tx_len; - } - else { + else ret = rx_len; - } - ssc_session_exit: +ssc_session_exit: if (ssc_tx_buf != NULL) - kfree (ssc_tx_buf); + kfree(ssc_tx_buf); if (ssc_rx_buf != NULL) - kfree (ssc_rx_buf); + kfree(ssc_rx_buf); + + if (ret < 0) + printk("ssc session fails\n"); - if (ret < 0) { - printk ("ssc session fails\n"); - } return ret; } -int -ifx_ssc_txrx (char *tx_buf, u32 tx_len, char *rx_buf, u32 rx_len) +int ifx_ssc_txrx(char *tx_buf, u32 tx_len, char *rx_buf, u32 rx_len) { return ssc_session(tx_buf, tx_len, rx_buf, rx_len); } EXPORT_SYMBOL(ifx_ssc_txrx); -int -ifx_ssc_tx (char *tx_buf, u32 tx_len) +int ifx_ssc_tx(char *tx_buf, u32 tx_len) { return ssc_session(tx_buf, tx_len, NULL, 0); } EXPORT_SYMBOL(ifx_ssc_tx); -int -ifx_ssc_rx (char *rx_buf, u32 rx_len) +int ifx_ssc_rx(char *rx_buf, u32 rx_len) { return ssc_session(NULL, 0, rx_buf, rx_len); } diff --git a/target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c b/target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c index 090516c5a..7efc03270 100644 --- a/target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c +++ b/target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c @@ -25,65 +25,61 @@ #include <linux/fs.h> #include <linux/init.h> #include <linux/platform_device.h> -#include <asm/uaccess.h> -#include <asm/unistd.h> +#include <linux/uaccess.h> +#include <linux/unistd.h> #include <linux/errno.h> +#include <linux/leds.h> +#include <linux/delay.h> + #include <asm/ifxmips/ifxmips.h> #include <asm/ifxmips/ifxmips_gpio.h> #include <asm/ifxmips/ifxmips_pmu.h> -#include <linux/leds.h> -#include <linux/delay.h> -#define DRVNAME "ifxmips_led" +#define DRVNAME "ifxmips_led" #define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_FALLING //#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_RISING -#define IFXMIPS_LED_SPEED IFXMIPS_LED_8HZ +#define IFXMIPS_LED_SPEED IFXMIPS_LED_8HZ #define IFXMIPS_LED_GPIO_PORT 0 -#define IFXMIPS_MAX_LED 24 +#define IFXMIPS_MAX_LED 24 struct ifxmips_led { struct led_classdev cdev; u8 bit; }; -void -ifxmips_led_set (unsigned int led) +void ifxmips_led_set (unsigned int led) { led &= 0xffffff; ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CPU0) | led, IFXMIPS_LED_CPU0); } EXPORT_SYMBOL(ifxmips_led_set); -void -ifxmips_led_clear (unsigned int led) +void ifxmips_led_clear (unsigned int led) { led = ~(led & 0xffffff); ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CPU0) & led, IFXMIPS_LED_CPU0); } EXPORT_SYMBOL(ifxmips_led_clear); -void -ifxmips_led_blink_set (unsigned int led) +void ifxmips_led_blink_set (unsigned int led) { led &= 0xffffff; ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | led, IFXMIPS_LED_CON0); } EXPORT_SYMBOL(ifxmips_led_blink_set); -void -ifxmips_led_blink_clear (unsigned int led) +void ifxmips_led_blink_clear (unsigned int led) { led = ~(led & 0xffffff); ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) & led, IFXMIPS_LED_CON0); } EXPORT_SYMBOL(ifxmips_led_blink_clear); -void -ifxmips_ledapi_set(struct led_classdev *led_cdev, enum led_brightness value) +void ifxmips_ledapi_set(struct led_classdev *led_cdev, enum led_brightness value) { struct ifxmips_led *led_dev = container_of(led_cdev, struct ifxmips_led, cdev); @@ -93,14 +89,12 @@ ifxmips_ledapi_set(struct led_classdev *led_cdev, enum led_brightness value) ifxmips_led_clear(1 << led_dev->bit); } -void -ifxmips_led_setup_gpio (void) +void ifxmips_led_setup_gpio (void) { int i = 0; /* we need to setup pins SH,D,ST (4,5,6) */ - for (i = 4; i < 7; i++) - { + for (i = 4; i < 7; i++) { ifxmips_port_set_altsel0(IFXMIPS_LED_GPIO_PORT, i); ifxmips_port_clear_altsel1(IFXMIPS_LED_GPIO_PORT, i); ifxmips_port_set_dir_out(IFXMIPS_LED_GPIO_PORT, i); @@ -108,8 +102,7 @@ ifxmips_led_setup_gpio (void) } } -static int -ifxmips_led_probe(struct platform_device *dev) +static int ifxmips_led_probe(struct platform_device *dev) { int i = 0; @@ -142,12 +135,11 @@ ifxmips_led_probe(struct platform_device *dev) /* per default, the leds are turned on */ ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_LED); - for(i = 0; i < IFXMIPS_MAX_LED; i++) - { + for (i = 0; i < IFXMIPS_MAX_LED; i++) { struct ifxmips_led *tmp = kzalloc(sizeof(struct ifxmips_led), GFP_KERNEL); tmp->cdev.brightness_set = ifxmips_ledapi_set; tmp->cdev.name = kmalloc(sizeof("ifxmips:led:00"), GFP_KERNEL); - sprintf((char*)tmp->cdev.name, "ifxmips:led:%02d", i); + sprintf((char *)tmp->cdev.name, "ifxmips:led:%02d", i); tmp->cdev.default_trigger = NULL; tmp->bit = i; led_classdev_register(&dev->dev, &tmp->cdev); @@ -156,14 +148,12 @@ ifxmips_led_probe(struct platform_device *dev) return 0; } -static int -ifxmips_led_remove(struct platform_device *pdev) +static int ifxmips_led_remove(struct platform_device *pdev) { return 0; } -static struct -platform_driver ifxmips_led_driver = { +static struct platform_driver ifxmips_led_driver = { .probe = ifxmips_led_probe, .remove = ifxmips_led_remove, .driver = { @@ -172,8 +162,7 @@ platform_driver ifxmips_led_driver = { }, }; -int __init -ifxmips_led_init (void) +int __init ifxmips_led_init (void) { int ret = platform_driver_register(&ifxmips_led_driver); if (ret) @@ -182,8 +171,7 @@ ifxmips_led_init (void) return ret; } -void __exit -ifxmips_led_exit (void) +void __exit ifxmips_led_exit (void) { platform_driver_unregister(&ifxmips_led_driver); } diff --git a/target/linux/ifxmips/files/drivers/mtd/maps/ifxmips.c b/target/linux/ifxmips/files/drivers/mtd/maps/ifxmips.c index aed241b98..b4faf0535 100644 --- a/target/linux/ifxmips/files/drivers/mtd/maps/ifxmips.c +++ b/target/linux/ifxmips/files/drivers/mtd/maps/ifxmips.c @@ -26,11 +26,12 @@ #include <linux/mtd/map.h> #include <linux/mtd/partitions.h> #include <linux/mtd/cfi.h> +#include <linux/magic.h> +#include <linux/platform_device.h> + #include <asm/ifxmips/ifxmips.h> #include <asm/ifxmips/ifxmips_prom.h> #include <asm/ifxmips/ifxmips_ebu.h> -#include <linux/magic.h> -#include <linux/platform_device.h> #ifndef CONFIG_MTD_PARTITIONS #error Please enable CONFIG_MTD_PARTITIONS diff --git a/target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c b/target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c index fafb5a52f..695e0b77a 100644 --- a/target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c +++ b/target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c @@ -48,43 +48,39 @@ struct ifxmips_mii_priv { static struct net_device *ifxmips_mii0_dev; static unsigned char mac_addr[MAX_ADDR_LEN]; -void -ifxmips_write_mdio(u32 phy_addr, u32 phy_reg, u16 phy_data) +void ifxmips_write_mdio(u32 phy_addr, u32 phy_reg, u16 phy_data) { u32 val = MDIO_ACC_REQUEST | ((phy_addr & MDIO_ACC_ADDR_MASK) << MDIO_ACC_ADDR_OFFSET) | ((phy_reg & MDIO_ACC_REG_MASK) << MDIO_ACC_REG_OFFSET) | phy_data; - while(ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST); + while (ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST); ifxmips_w32(val, IFXMIPS_PPE32_MDIO_ACC); } EXPORT_SYMBOL(ifxmips_write_mdio); -unsigned short -ifxmips_read_mdio(u32 phy_addr, u32 phy_reg) +unsigned short ifxmips_read_mdio(u32 phy_addr, u32 phy_reg) { u32 val = MDIO_ACC_REQUEST | MDIO_ACC_READ | ((phy_addr & MDIO_ACC_ADDR_MASK) << MDIO_ACC_ADDR_OFFSET) | ((phy_reg & MDIO_ACC_REG_MASK) << MDIO_ACC_REG_OFFSET); - while(ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST); + while (ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST) ; ifxmips_w32(val, IFXMIPS_PPE32_MDIO_ACC); - while(ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST){}; + while (ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST) ; val = ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_VAL_MASK; return val; } EXPORT_SYMBOL(ifxmips_read_mdio); -int -ifxmips_ifxmips_mii_open(struct net_device *dev) +int ifxmips_ifxmips_mii_open(struct net_device *dev) { - struct ifxmips_mii_priv* priv = (struct ifxmips_mii_priv*)dev->priv; - struct dma_device_info* dma_dev = priv->dma_device; + struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)dev->priv; + struct dma_device_info *dma_dev = priv->dma_device; int i; - for (i = 0; i < dma_dev->max_rx_chan_num; i++) - { + for (i = 0; i < dma_dev->max_rx_chan_num; i++) { if ((dma_dev->rx_chan[i])->control == IFXMIPS_DMA_CH_ON) (dma_dev->rx_chan[i])->open(dma_dev->rx_chan[i]); } @@ -92,10 +88,10 @@ ifxmips_ifxmips_mii_open(struct net_device *dev) return 0; } -int -ifxmips_mii_release(struct net_device *dev){ - struct ifxmips_mii_priv* priv = (struct ifxmips_mii_priv*)dev->priv; - struct dma_device_info* dma_dev = priv->dma_device; +int ifxmips_mii_release(struct net_device *dev) +{ + struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)dev->priv; + struct dma_device_info *dma_dev = priv->dma_device; int i; for (i = 0; i < dma_dev->max_rx_chan_num; i++) @@ -104,32 +100,28 @@ ifxmips_mii_release(struct net_device *dev){ return 0; } -int -ifxmips_mii_hw_receive(struct net_device* dev,struct dma_device_info* dma_dev) +int ifxmips_mii_hw_receive(struct net_device *dev, struct dma_device_info *dma_dev) { - struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv*)dev->priv; - unsigned char* buf = NULL; + struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)dev->priv; + unsigned char *buf = NULL; struct sk_buff *skb = NULL; int len = 0; - len = dma_device_read(dma_dev, &buf, (void**)&skb); + len = dma_device_read(dma_dev, &buf, (void **)&skb); - if (len >= ETHERNET_PACKET_DMA_BUFFER_SIZE) - { - printk(KERN_INFO "ifxmips_mii0: packet too large %d\n",len); + if (len >= ETHERNET_PACKET_DMA_BUFFER_SIZE) { + printk(KERN_INFO "ifxmips_mii0: packet too large %d\n", len); goto ifxmips_mii_hw_receive_err_exit; } /* remove CRC */ len -= 4; - if (skb == NULL) - { + if (skb == NULL) { printk(KERN_INFO "ifxmips_mii0: cannot restore pointer\n"); goto ifxmips_mii_hw_receive_err_exit; } - if (len > (skb->end - skb->tail)) - { + if (len > (skb->end - skb->tail)) { printk(KERN_INFO "ifxmips_mii0: BUG, len:%d end:%p tail:%p\n", (len+4), skb->end, skb->tail); goto ifxmips_mii_hw_receive_err_exit; @@ -145,8 +137,7 @@ ifxmips_mii_hw_receive(struct net_device* dev,struct dma_device_info* dma_dev) return 0; ifxmips_mii_hw_receive_err_exit: - if (len == 0) - { + if (len == 0) { if (skb) dev_kfree_skb_any(skb); priv->stats.rx_errors++; @@ -157,52 +148,48 @@ ifxmips_mii_hw_receive_err_exit: } } -int -ifxmips_mii_hw_tx(char *buf, int len, struct net_device *dev) +int ifxmips_mii_hw_tx(char *buf, int len, struct net_device *dev) { int ret = 0; struct ifxmips_mii_priv *priv = dev->priv; - struct dma_device_info* dma_dev = priv->dma_device; + struct dma_device_info *dma_dev = priv->dma_device; ret = dma_device_write(dma_dev, buf, len, priv->skb); return ret; } -int -ifxmips_mii_tx(struct sk_buff *skb, struct net_device *dev) +int ifxmips_mii_tx(struct sk_buff *skb, struct net_device *dev) { int len; char *data; struct ifxmips_mii_priv *priv = dev->priv; - struct dma_device_info* dma_dev = priv->dma_device; + struct dma_device_info *dma_dev = priv->dma_device; len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len; data = skb->data; priv->skb = skb; dev->trans_start = jiffies; - // TODO we got more than 1 dma channel, so we should do something intelligent - // here to select one + /* TODO: we got more than 1 dma channel, + so we should do something intelligent here to select one */ dma_dev->current_tx_chan = 0; wmb(); - if (ifxmips_mii_hw_tx(data, len, dev) != len) - { + if (ifxmips_mii_hw_tx(data, len, dev) != len) { dev_kfree_skb_any(skb); priv->stats.tx_errors++; priv->stats.tx_dropped++; } else { priv->stats.tx_packets++; - priv->stats.tx_bytes+=len; + priv->stats.tx_bytes += len; } return 0; } -void -ifxmips_mii_tx_timeout(struct net_device *dev) +void ifxmips_mii_tx_timeout(struct net_device *dev) { int i; - struct ifxmips_mii_priv* priv = (struct ifxmips_mii_priv*)dev->priv; + struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)dev->priv; priv->stats.tx_errors++; for (i = 0; i < priv->dma_device->max_tx_chan_num; i++) @@ -211,13 +198,11 @@ ifxmips_mii_tx_timeout(struct net_device *dev) return; } -int -dma_intr_handler(struct dma_device_info* dma_dev, int status) +int dma_intr_handler(struct dma_device_info *dma_dev, int status) { int i; - switch(status) - { + switch (status) { case RCV_INT: ifxmips_mii_hw_receive(ifxmips_mii0_dev, dma_dev); break; @@ -225,9 +210,8 @@ dma_intr_handler(struct dma_device_info* dma_dev, int status) case TX_BUF_FULL_INT: printk(KERN_INFO "ifxmips_mii0: tx buffer full\n"); netif_stop_queue(ifxmips_mii0_dev); - for (i = 0; i < dma_dev->max_tx_chan_num; i++) - { - if ((dma_dev->tx_chan[i])->control==IFXMIPS_DMA_CH_ON) + for (i = 0; i < dma_dev->max_tx_chan_num; i++) { + if ((dma_dev->tx_chan[i])->control == IFXMIPS_DMA_CH_ON) dma_dev->tx_chan[i]->enable_irq(dma_dev->tx_chan[i]); } break; @@ -243,8 +227,7 @@ dma_intr_handler(struct dma_device_info* dma_dev, int status) return 0; } -unsigned char* -ifxmips_etop_dma_buffer_alloc(int len, int *byte_offset, void **opt) +unsigned char *ifxmips_etop_dma_buffer_alloc(int len, int *byte_offset, void **opt) { unsigned char *buffer = NULL; struct sk_buff *skb = NULL; @@ -253,36 +236,32 @@ ifxmips_etop_dma_buffer_alloc(int len, int *byte_offset, void **opt) if (skb == NULL) return NULL; - buffer = (unsigned char*)(skb->data); + buffer = (unsigned char *)(skb->data); skb_reserve(skb, 2); - *(int*)opt = (int)skb; + *(int *)opt = (int)skb; *byte_offset = 2; return buffer; } -void -ifxmips_etop_dma_buffer_free(unsigned char *dataptr, void *opt) +void ifxmips_etop_dma_buffer_free(unsigned char *dataptr, void *opt) { struct sk_buff *skb = NULL; - if (opt == NULL) - { + if (opt == NULL) { kfree(dataptr); } else { - skb = (struct sk_buff*)opt; + skb = (struct sk_buff *)opt; dev_kfree_skb_any(skb); } } -static struct net_device_stats* -ifxmips_get_stats(struct net_device *dev) +static struct net_device_stats *ifxmips_get_stats(struct net_device *dev) { return (struct net_device_stats *)dev->priv; } -static int -ifxmips_mii_dev_init(struct net_device *dev) +static int ifxmips_mii_dev_init(struct net_device *dev) { int i; struct ifxmips_mii_priv *priv; @@ -298,7 +277,7 @@ ifxmips_mii_dev_init(struct net_device *dev) memset(dev->priv, 0, sizeof(struct ifxmips_mii_priv)); priv = dev->priv; priv->dma_device = dma_device_reserve("PPE"); - if (!priv->dma_device){ + if (!priv->dma_device) { BUG(); return -ENODEV; } @@ -307,8 +286,7 @@ ifxmips_mii_dev_init(struct net_device *dev) priv->dma_device->intr_handler = &dma_intr_handler; priv->dma_device->max_rx_chan_num = 4; - for (i = 0; i < priv->dma_device->max_rx_chan_num; i++) - { + for (i = 0; i < priv->dma_device->max_rx_chan_num; i++) { priv->dma_device->rx_chan[i]->packet_size = ETHERNET_PACKET_DMA_BUFFER_SIZE; priv->dma_device->rx_chan[i]->control = IFXMIPS_DMA_CH_ON; } @@ -322,16 +300,14 @@ ifxmips_mii_dev_init(struct net_device *dev) dma_device_register(priv->dma_device); printk(KERN_INFO "ifxmips_mii0: using mac="); - for (i = 0; i < 6; i++) - { + for (i = 0; i < 6; i++) { dev->dev_addr[i] = mac_addr[i]; printk("%02X%c", dev->dev_addr[i], (i == 5)?('\n'):(':')); } return 0; } -static void -ifxmips_mii_chip_init(int mode) +static void ifxmips_mii_chip_init(int mode) { ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_DMA); ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_PPE); @@ -345,19 +321,17 @@ ifxmips_mii_chip_init(int mode) wmb(); } -static int -ifxmips_mii_probe(struct platform_device *dev) +static int ifxmips_mii_probe(struct platform_device *dev) { int result = 0; - unsigned char *mac = (unsigned char*)dev->dev.platform_data; + unsigned char *mac = (unsigned char *)dev->dev.platform_data; ifxmips_mii0_dev = alloc_etherdev(sizeof(struct ifxmips_mii_priv)); ifxmips_mii0_dev->init = ifxmips_mii_dev_init; memcpy(mac_addr, mac, 6); strcpy(ifxmips_mii0_dev->name, "eth%d"); ifxmips_mii_chip_init(REV_MII_MODE); result = register_netdev(ifxmips_mii0_dev); - if (result) - { + if (result) { printk(KERN_INFO "ifxmips_mii0: error %i registering device \"%s\"\n", result, ifxmips_mii0_dev->name); goto out; } @@ -368,10 +342,9 @@ out: return result; } -static int -ifxmips_mii_remove(struct platform_device *dev) +static int ifxmips_mii_remove(struct platform_device *dev) { - struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv*)ifxmips_mii0_dev->priv; + struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)ifxmips_mii0_dev->priv; printk(KERN_INFO "ifxmips_mii0: ifxmips_mii0 cleanup\n"); @@ -383,8 +356,7 @@ ifxmips_mii_remove(struct platform_device *dev) return 0; } -static struct -platform_driver ifxmips_mii_driver = { +static struct platform_driver ifxmips_mii_driver = { .probe = ifxmips_mii_probe, .remove = ifxmips_mii_remove, .driver = { @@ -393,8 +365,7 @@ platform_driver ifxmips_mii_driver = { }, }; -int __init -ifxmips_mii_init(void) +int __init ifxmips_mii_init(void) { int ret = platform_driver_register(&ifxmips_mii_driver); if (ret) @@ -402,8 +373,7 @@ ifxmips_mii_init(void) return ret; } -static void __exit -ifxmips_mii_cleanup(void) +static void __exit ifxmips_mii_cleanup(void) { platform_driver_unregister(&ifxmips_mii_driver); } @@ -414,3 +384,4 @@ module_exit(ifxmips_mii_cleanup); MODULE_LICENSE("GPL"); MODULE_AUTHOR("John Crispin <blogic@openwrt.org>"); MODULE_DESCRIPTION("ethernet map driver for IFXMIPS boards"); + diff --git a/target/linux/ifxmips/files/drivers/serial/ifxmips_asc.c b/target/linux/ifxmips/files/drivers/serial/ifxmips_asc.c index 2dc8917fe..d6bf1803f 100644 --- a/target/linux/ifxmips/files/drivers/serial/ifxmips_asc.c +++ b/target/linux/ifxmips/files/drivers/serial/ifxmips_asc.c @@ -42,10 +42,12 @@ #include <linux/sysrq.h> #include <linux/irq.h> #include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/uaccess.h> +#include <linux/bitops.h> + #include <asm/system.h> -#include <asm/io.h> -#include <asm/uaccess.h> -#include <asm/bitops.h> + #include <asm/ifxmips/ifxmips.h> #include <asm/ifxmips/ifxmips_irq.h> @@ -56,19 +58,17 @@ #define UART_DUMMY_UER_RX 1 static void ifxmipsasc_tx_chars(struct uart_port *port); -extern void prom_printf(const char * fmt, ...); +extern void prom_printf(const char *fmt, ...); static struct uart_port ifxmipsasc_port[2]; static struct uart_driver ifxmipsasc_reg; extern unsigned int ifxmips_get_fpi_hz(void); -static void -ifxmipsasc_stop_tx(struct uart_port *port) +static void ifxmipsasc_stop_tx(struct uart_port *port) { return; } -static void -ifxmipsasc_start_tx(struct uart_port *port) +static void ifxmipsasc_start_tx(struct uart_port *port) { unsigned long flags; local_irq_save(flags); @@ -77,26 +77,28 @@ ifxmipsasc_start_tx(struct uart_port *port) return; } -static void -ifxmipsasc_stop_rx(struct uart_port *port) +static void ifxmipsasc_stop_rx(struct uart_port *port) { ifxmips_w32(ASCWHBSTATE_CLRREN, port->membase + IFXMIPS_ASC_WHBSTATE); } -static void -ifxmipsasc_enable_ms(struct uart_port *port) +static void ifxmipsasc_enable_ms(struct uart_port *port) { } -static void -ifxmipsasc_rx_chars(struct uart_port *port) +#include <linux/version.h> + +static void ifxmipsasc_rx_chars(struct uart_port *port) { +#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 26)) + struct tty_struct *tty = port->info->port.tty; +#else struct tty_struct *tty = port->info->tty; +#endif unsigned int ch = 0, rsr = 0, fifocnt; fifocnt = ifxmips_r32(port->membase + IFXMIPS_ASC_FSTAT) & ASCFSTAT_RXFFLMASK; - while(fifocnt--) - { + while (fifocnt--) { u8 flag = TTY_NORMAL; ch = ifxmips_r32(port->membase + IFXMIPS_ASC_RBUF); rsr = (ifxmips_r32(port->membase + IFXMIPS_ASC_STATE) & ASCSTATE_ANY) | UART_DUMMY_UER_RX; @@ -107,35 +109,31 @@ ifxmipsasc_rx_chars(struct uart_port *port) * Note that the error handling code is * out of the main execution path */ - if(rsr & ASCSTATE_ANY) - { - if(rsr & ASCSTATE_PE) - { + if (rsr & ASCSTATE_ANY) { + if (rsr & ASCSTATE_PE) { port->icount.parity++; ifxmips_w32(ifxmips_r32(port->membase + IFXMIPS_ASC_WHBSTATE) | ASCWHBSTATE_CLRPE, port->membase + IFXMIPS_ASC_WHBSTATE); - } else if(rsr & ASCSTATE_FE) - { + } else if (rsr & ASCSTATE_FE) { port->icount.frame++; ifxmips_w32(ifxmips_r32(port->membase + IFXMIPS_ASC_WHBSTATE) | ASCWHBSTATE_CLRFE, port->membase + IFXMIPS_ASC_WHBSTATE); } - if(rsr & ASCSTATE_ROE) - { + if (rsr & ASCSTATE_ROE) { port->icount.overrun++; ifxmips_w32(ifxmips_r32(port->membase + IFXMIPS_ASC_WHBSTATE) | ASCWHBSTATE_CLRROE, port->membase + IFXMIPS_ASC_WHBSTATE); } rsr &= port->read_status_mask; - if(rsr & ASCSTATE_PE) + if (rsr & ASCSTATE_PE) flag = TTY_PARITY; - else if(rsr & ASCSTATE_FE) + else if (rsr & ASCSTATE_FE) flag = TTY_FRAME; } - if((rsr & port->ignore_status_mask) == 0) + if ((rsr & port->ignore_status_mask) == 0) tty_insert_flip_char(tty, ch, flag); - if(rsr & ASCSTATE_ROE) + if (rsr & ASCSTATE_ROE) /* * Overrun is special, since it's reported * immediately, and doesn't affect the current @@ -143,34 +141,30 @@ ifxmipsasc_rx_chars(struct uart_port *port) */ tty_insert_flip_char(tty, 0, TTY_OVERRUN); } - if(ch != 0) + if (ch != 0) tty_flip_buffer_push(tty); return; } -static void -ifxmipsasc_tx_chars(struct uart_port *port) +static void ifxmipsasc_tx_chars(struct uart_port *port) { struct circ_buf *xmit = &port->info->xmit; - if(uart_tx_stopped(port)) - { + if (uart_tx_stopped(port)) { ifxmipsasc_stop_tx(port); return; } - while(((ifxmips_r32(port->membase + IFXMIPS_ASC_FSTAT) & ASCFSTAT_TXFFLMASK) - >> ASCFSTAT_TXFFLOFF) != TXFIFO_FULL) - { - if(port->x_char) - { + while (((ifxmips_r32(port->membase + IFXMIPS_ASC_FSTAT) & ASCFSTAT_TXFFLMASK) + >> ASCFSTAT_TXFFLOFF) != TXFIFO_FULL) { + if (port->x_char) { ifxmips_w32(port->x_char, port->membase + IFXMIPS_ASC_TBUF); port->icount.tx++; port->x_char = 0; continue; } - if(uart_circ_empty(xmit)) + if (uart_circ_empty(xmit)) break; ifxmips_w32(port->info->xmit.buf[port->info->xmit.tail], port->membase + IFXMIPS_ASC_TBUF); @@ -178,66 +172,58 @@ ifxmipsasc_tx_chars(struct uart_port *port) port->icount.tx++; } - if(uart_circ_chars_pending(xmit) < WAKEUP_CHARS) + if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(port); } -static irqreturn_t -ifxmipsasc_tx_int(int irq, void *_port) +static irqreturn_t ifxmipsasc_tx_int(int irq, void *_port) { - struct uart_port *port = (struct uart_port*) _port; + struct uart_port *port = (struct uart_port *)_port; ifxmips_w32(ASC_IRNCR_TIR, port->membase + IFXMIPS_ASC_IRNCR); ifxmipsasc_start_tx(port); ifxmips_mask_and_ack_irq(irq); return IRQ_HANDLED; } -static irqreturn_t -ifxmipsasc_er_int(int irq, void *_port) +static irqreturn_t ifxmipsasc_er_int(int irq, void *_port) { - struct uart_port *port = (struct uart_port*) _port; + struct uart_port *port = (struct uart_port *)_port; /* clear any pending interrupts */ ifxmips_w32(ifxmips_r32(port->membase + IFXMIPS_ASC_WHBSTATE) | ASCWHBSTATE_CLRPE | ASCWHBSTATE_CLRFE | ASCWHBSTATE_CLRROE, port->membase + IFXMIPS_ASC_WHBSTATE); return IRQ_HANDLED; } -static irqreturn_t -ifxmipsasc_rx_int(int irq, void *_port) +static irqreturn_t ifxmipsasc_rx_int(int irq, void *_port) { - struct uart_port *port = (struct uart_port*)_port; + struct uart_port *port = (struct uart_port *)_port; ifxmips_w32(ASC_IRNCR_RIR, port->membase + IFXMIPS_ASC_IRNCR); - ifxmipsasc_rx_chars((struct uart_port*)port); + ifxmipsasc_rx_chars((struct uart_port *)port); ifxmips_mask_and_ack_irq(irq); return IRQ_HANDLED; } -static unsigned int -ifxmipsasc_tx_empty(struct uart_port *port) +static unsigned int ifxmipsasc_tx_empty(struct uart_port *port) { int status; status = ifxmips_r32(port->membase + IFXMIPS_ASC_FSTAT) & ASCFSTAT_TXFFLMASK; return status ? 0 : TIOCSER_TEMT; } -static unsigned int -ifxmipsasc_get_mctrl(struct uart_port *port) +static unsigned int ifxmipsasc_get_mctrl(struct uart_port *port) { return TIOCM_CTS | TIOCM_CAR | TIOCM_DSR; } -static void -ifxmipsasc_set_mctrl(struct uart_port *port, u_int mctrl) +static void ifxmipsasc_set_mctrl(struct uart_port *port, u_int mctrl) { } -static void -ifxmipsasc_break_ctl(struct uart_port *port, int break_state) +static void ifxmipsasc_break_ctl(struct uart_port *port, int break_state) { } -static int -ifxmipsasc_startup(struct uart_port *port) +static int ifxmipsasc_startup(struct uart_port *port) { unsigned long flags; int retval; @@ -249,29 +235,26 @@ ifxmipsasc_startup(struct uart_port *port) ifxmips_w32(0, port->membase + IFXMIPS_ASC_PISEL); ifxmips_w32(((TXFIFO_FL << ASCTXFCON_TXFITLOFF) & ASCTXFCON_TXFITLMASK) | ASCTXFCON_TXFEN | ASCTXFCON_TXFFLU, port->membase + IFXMIPS_ASC_TXFCON); ifxmips_w32(((RXFIFO_FL << ASCRXFCON_RXFITLOFF) & ASCRXFCON_RXFITLMASK) | ASCRXFCON_RXFEN | ASCRXFCON_RXFFLU, port->membase + IFXMIPS_ASC_RXFCON); - wmb (); + wmb(); ifxmips_w32(ifxmips_r32(port->membase + IFXMIPS_ASC_CON) | ASCCON_M_8ASYNC | ASCCON_FEN | ASCCON_TOEN | ASCCON_ROEN, port->membase + IFXMIPS_ASC_CON); local_irq_save(flags); retval = request_irq(port->irq, ifxmipsasc_tx_int, IRQF_DISABLED, "asc_tx", port); - if(retval) - { - printk("failed to request ifxmipsasc_tx_int\n"); + if (retval) { + printk(KERN_ERR "failed to request ifxmipsasc_tx_int\n"); return retval; } retval = request_irq(port->irq + 2, ifxmipsasc_rx_int, IRQF_DISABLED, "asc_rx", port); - if(retval) - { - printk("failed to request ifxmipsasc_rx_int\n"); + if (retval) { + printk(KERN_ERR "failed to request ifxmipsasc_rx_int\n"); goto err1; } retval = request_irq(port->irq + 3, ifxmipsasc_er_int, IRQF_DISABLED, "asc_er", port); - if(retval) - { - printk("failed to request ifxmipsasc_er_int\n"); + if (retval) { + printk(KERN_ERR "failed to request ifxmipsasc_er_int\n"); goto err2; } @@ -288,8 +271,7 @@ err1: return retval; } -static void -ifxmipsasc_shutdown(struct uart_port *port) +static void ifxmipsasc_shutdown(struct uart_port *port) { free_irq(port->irq, port); free_irq(port->irq + 2, port); @@ -314,8 +296,7 @@ static void ifxmipsasc_set_termios(struct uart_port *port, struct ktermios *new, cflag = new->c_cflag; iflag = new->c_iflag; - switch(cflag & CSIZE) - { + switch (cflag & CSIZE) { case CS7: con = ASCCON_M_7ASYNC; break; @@ -327,36 +308,34 @@ static void ifxmipsasc_set_termios(struct uart_port *port, struct ktermios *new, break; } - if(cflag & CSTOPB) + if (cflag & CSTOPB) con |= ASCCON_STP; - if(cflag & PARENB) - { - if(!(cflag & PARODD)) + if (cflag & PARENB) { + if (!(cflag & PARODD)) con &= ~ASCCON_ODD; else con |= ASCCON_ODD; } port->read_status_mask = ASCSTATE_ROE; - if(iflag & INPCK) + if (iflag & INPCK) port->read_status_mask |= ASCSTATE_FE | ASCSTATE_PE; port->ignore_status_mask = 0; - if(iflag & IGNPAR) + if (iflag & IGNPAR) port->ignore_status_mask |= ASCSTATE_FE | ASCSTATE_PE; - if(iflag & IGNBRK) - { + if (iflag & IGNBRK) { /* * If we're ignoring parity and break indicators, * ignore overruns too (for real raw support). */ - if(iflag & IGNPAR) + if (iflag & IGNPAR) port->ignore_status_mask |= ASCSTATE_ROE; } - if((cflag & CREAD) == 0) + if ((cflag & CREAD) == 0) port->ignore_status_mask |= UART_DUMMY_UER_RX; /* set error signals - framing, parity and overrun, enable receiver */ @@ -368,7 +347,7 @@ static void ifxmipsasc_set_termios(struct uart_port *port, struct ktermios *new, ifxmips_w32(ifxmips_r32(port->membase + IFXMIPS_ASC_CON) | con, port->membase + IFXMIPS_ASC_CON); /* Set baud rate - take a divider of 2 into account */ - baud = uart_get_baud_rate(port, new, old, 0, port->uartclk / 16); + baud = uart_get_baud_rate(port, new, old, 0, port->uartclk / 16); quot = uart_get_divisor(port, baud); quot = quot / 2 - 1; @@ -393,12 +372,10 @@ static void ifxmipsasc_set_termios(struct uart_port *port, struct ktermios *new, local_irq_restore(flags); } -static const char* -ifxmipsasc_type(struct uart_port *port) +static const char *ifxmipsasc_type(struct uart_port *port) { - if(port->type == PORT_IFXMIPSASC) - { - if(port->membase == (void*)IFXMIPS_ASC_BASE_ADDR) + if (port->type == PORT_IFXMIPSASC) { + if (port->membase == (void *)IFXMIPS_ASC_BASE_ADDR) return "asc0"; else return "asc1"; @@ -407,120 +384,109 @@ ifxmipsasc_type(struct uart_port *port) } } -static void -ifxmipsasc_release_port(struct uart_port *port) +static void ifxmipsasc_release_port(struct uart_port *port) { } -static int -ifxmipsasc_request_port(struct uart_port *port) +static int ifxmipsasc_request_port(struct uart_port *port) { return 0; } -static void -ifxmipsasc_config_port(struct uart_port *port, int flags) +static void ifxmipsasc_config_port(struct uart_port *port, int flags) { - if(flags & UART_CONFIG_TYPE) - { + if (flags & UART_CONFIG_TYPE) { port->type = PORT_IFXMIPSASC; ifxmipsasc_request_port(port); } } -static int -ifxmipsasc_verify_port(struct uart_port *port, struct serial_struct *ser) +static int ifxmipsasc_verify_port(struct uart_port *port, struct serial_struct *ser) { int ret = 0; - if(ser->type != PORT_UNKNOWN && ser->type != PORT_IFXMIPSASC) + if (ser->type != PORT_UNKNOWN && ser->type != PORT_IFXMIPSASC) ret = -EINVAL; - if(ser->irq < 0 || ser->irq >= NR_IRQS) + if (ser->irq < 0 || ser->irq >= NR_IRQS) ret = -EINVAL; - if(ser->baud_base < 9600) + if (ser->baud_base < 9600) ret = -EINVAL; return ret; } -static struct uart_ops ifxmipsasc_pops = -{ - .tx_empty = ifxmipsasc_tx_empty, +static struct uart_ops ifxmipsasc_pops = { + .tx_empty = ifxmipsasc_tx_empty, .set_mctrl = ifxmipsasc_set_mctrl, .get_mctrl = ifxmipsasc_get_mctrl, - .stop_tx = ifxmipsasc_stop_tx, - .start_tx = ifxmipsasc_start_tx, - .stop_rx = ifxmipsasc_stop_rx, + .stop_tx = ifxmipsasc_stop_tx, + .start_tx = ifxmipsasc_start_tx, + .stop_rx = ifxmipsasc_stop_rx, .enable_ms = ifxmipsasc_enable_ms, .break_ctl = ifxmipsasc_break_ctl, - .startup = ifxmipsasc_startup, - .shutdown = ifxmipsasc_shutdown, + .startup = ifxmipsasc_startup, + .shutdown = ifxmipsasc_shutdown, .set_termios = ifxmipsasc_set_termios, - .type = ifxmipsasc_type, + .type = ifxmipsasc_type, .release_port = ifxmipsasc_release_port, .request_port = ifxmipsasc_request_port, .config_port = ifxmipsasc_config_port, .verify_port = ifxmipsasc_verify_port, }; -static struct uart_port ifxmipsasc_port[2] = -{ +static struct uart_port ifxmipsasc_port[2] = { { - membase: (void *)IFXMIPS_ASC_BASE_ADDR, - mapbase: IFXMIPS_ASC_BASE_ADDR, - iotype: SERIAL_IO_MEM, - irq: IFXMIPSASC_TIR(0), - uartclk: 0, - fifosize: 16, - type: PORT_IFXMIPSASC, - ops: &ifxmipsasc_pops, - flags: ASYNC_BOOT_AUTOCONF, - line: 0 + .membase = (void *)IFXMIPS_ASC_BASE_ADDR, + .mapbase = IFXMIPS_ASC_BASE_ADDR, + .iotype = SERIAL_IO_MEM, + .irq = IFXMIPSASC_TIR(0), + .uartclk = 0, + .fifosize = 16, + .type = PORT_IFXMIPSASC, + .ops = &ifxmipsasc_pops, + .flags = ASYNC_BOOT_AUTOCONF, + .line = 0 }, { - membase: (void *)(IFXMIPS_ASC_BASE_ADDR + IFXMIPS_ASC_BASE_DIFF), - mapbase: IFXMIPS_ASC_BASE_ADDR + IFXMIPS_ASC_BASE_DIFF, - iotype: SERIAL_IO_MEM, - irq: IFXMIPSASC_TIR(1), - uartclk: 0, - fifosize: 16, - type: PORT_IFXMIPSASC, - ops: &ifxmipsasc_pops, - flags: ASYNC_BOOT_AUTOCONF, - line: 1 + .membase = (void *)(IFXMIPS_ASC_BASE_ADDR + IFXMIPS_ASC_BASE_DIFF), + .mapbase = IFXMIPS_ASC_BASE_ADDR + IFXMIPS_ASC_BASE_DIFF, + .iotype = SERIAL_IO_MEM, + .irq = IFXMIPSASC_TIR(1), + .uartclk = 0, + .fifosize = 16, + .type = PORT_IFXMIPSASC, + .ops = &ifxmipsasc_pops, + .flags = ASYNC_BOOT_AUTOCONF, + .line = 1 } }; -static void -ifxmipsasc_console_write(struct console *co, const char *s, u_int count) +static void ifxmipsasc_console_write(struct console *co, const char *s, u_int count) { int port = co->index; int i, fifocnt; unsigned long flags; local_irq_save(flags); - for(i = 0; i < count; i++) - { + for (i = 0; i < count; i++) { do { - fifocnt = (ifxmips_r32((u32*)(IFXMIPS_ASC_BASE_ADDR + (port * IFXMIPS_ASC_BASE_DIFF) + IFXMIPS_ASC_FSTAT)) & ASCFSTAT_TXFFLMASK) - >> ASCFSTAT_TXFFLOFF; - } while(fifocnt == TXFIFO_FULL); + fifocnt = (ifxmips_r32((u32 *)(IFXMIPS_ASC_BASE_ADDR + (port * IFXMIPS_ASC_BASE_DIFF) + IFXMIPS_ASC_FSTAT)) & ASCFSTAT_TXFFLMASK) + >> ASCFSTAT_TXFFLOFF; + } while (fifocnt == TXFIFO_FULL); - if(s[i] == '\0') + if (s[i] == '\0') break; - if(s[i] == '\n') - { - ifxmips_w32('\r', (u32*)(IFXMIPS_ASC_BASE_ADDR + (port * IFXMIPS_ASC_BASE_DIFF) + IFXMIPS_ASC_TBUF)); + if (s[i] == '\n') { + ifxmips_w32('\r', (u32 *)(IFXMIPS_ASC_BASE_ADDR + (port * IFXMIPS_ASC_BASE_DIFF) + IFXMIPS_ASC_TBUF)); do { - fifocnt = (ifxmips_r32((u32*)(IFXMIPS_ASC_BASE_ADDR + (port * IFXMIPS_ASC_BASE_DIFF) + IFXMIPS_ASC_FSTAT)) & ASCFSTAT_TXFFLMASK) + fifocnt = (ifxmips_r32((u32 *)(IFXMIPS_ASC_BASE_ADDR + (port * IFXMIPS_ASC_BASE_DIFF) + IFXMIPS_ASC_FSTAT)) & ASCFSTAT_TXFFLMASK) >> ASCFSTAT_TXFFLOFF; - } while(fifocnt == TXFIFO_FULL); + } while (fifocnt == TXFIFO_FULL); } - ifxmips_w32(s[i], (u32*)(IFXMIPS_ASC_BASE_ADDR + (port * IFXMIPS_ASC_BASE_DIFF) + IFXMIPS_ASC_TBUF)); + ifxmips_w32(s[i], (u32 *)(IFXMIPS_ASC_BASE_ADDR + (port * IFXMIPS_ASC_BASE_DIFF) + IFXMIPS_ASC_TBUF)); } local_irq_restore(flags); } -static int __init -ifxmipsasc_console_setup(struct console *co, char *options) +static int __init ifxmipsasc_console_setup(struct console *co, char *options) { int port = co->index; int baud = 115200; @@ -529,7 +495,7 @@ ifxmipsasc_console_setup(struct console *co, char *options) int flow = 'n'; ifxmipsasc_port[port].uartclk = ifxmips_get_fpi_hz(); ifxmipsasc_port[port].type = PORT_IFXMIPSASC; - if(options) + if (options) uart_parse_options(options, &baud, &parity, &bits, &flow); return uart_set_options(&ifxmipsasc_port[port], co, baud, parity, bits, flow); } @@ -537,26 +503,25 @@ ifxmipsasc_console_setup(struct console *co, char *options) static struct console ifxmipsasc_console[2] = { { - name: "ttyS", - write: ifxmipsasc_console_write, - device: uart_console_device, - setup: ifxmipsasc_console_setup, - flags: CON_PRINTBUFFER, - index: 0, - data: &ifxmipsasc_reg, + .name = "ttyS", + .write = ifxmipsasc_console_write, + .device = uart_console_device, + .setup = ifxmipsasc_console_setup, + .flags = CON_PRINTBUFFER, + .index = 0, + .data = &ifxmipsasc_reg, }, { - name: "ttyS", - write: ifxmipsasc_console_write, - device: uart_console_device, - setup: ifxmipsasc_console_setup, - flags: CON_PRINTBUFFER, - index: 1, - data: &ifxmipsasc_reg, + .name = "ttyS", + .write = ifxmipsasc_console_write, + .device = uart_console_device, + .setup = ifxmipsasc_console_setup, + .flags = CON_PRINTBUFFER, + .index = 1, + .data = &ifxmipsasc_reg, } }; -static int __init -ifxmipsasc_console_init(void) +static int __init ifxmipsasc_console_init(void) { register_console(&ifxmipsasc_console[0]); register_console(&ifxmipsasc_console[1]); @@ -564,19 +529,17 @@ ifxmipsasc_console_init(void) } console_initcall(ifxmipsasc_console_init); -static struct uart_driver ifxmipsasc_reg = -{ - .owner = THIS_MODULE, - .driver_name = "serial", - .dev_name = "ttyS", - .major = TTY_MAJOR, - .minor = 64, - .nr = 2, - .cons = &ifxmipsasc_console[1], +static struct uart_driver ifxmipsasc_reg = { + .owner = THIS_MODULE, + .driver_name = "serial", + .dev_name = "ttyS", + .major = TTY_MAJOR, + .minor = 64, + .nr = 2, + .cons = &ifxmipsasc_console[1], }; -int __init -ifxmipsasc_init(void) +int __init ifxmipsasc_init(void) { int ret; uart_register_driver(&ifxmipsasc_reg); @@ -585,8 +548,7 @@ ifxmipsasc_init(void) return 0; } -void __exit -ifxmipsasc_exit(void) +void __exit ifxmipsasc_exit(void) { uart_unregister_driver(&ifxmipsasc_reg); } |