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Date: Tue, 23 Jun 2015 18:59:40 +0530
From: Sudip Mukherjee <sudipm.mukherjee@...il.com>
To: David Howells <dhowells@...hat.com>,
Johan Hovold <johan@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-am33-list@...hat.com, linux-kernel@...r.kernel.org,
linux-usb@...r.kernel.org,
Sudip Mukherjee <sudipm.mukherjee@...il.com>
Subject: [PATCH v3] USB: mos7720: rename registers
Some of the register names defined here are matching with registers
defined in other places. Like DCR is defined here and DCR is also
a register in mn10300 architecture. So when we are building this with
mn10300, build fails.
To avoid we rename all the registers.
Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
---
v3: renamed all registers with MOS7220_
v2: renamed only DCR
drivers/usb/serial/mos7720.c | 253 +++++++++++++++++++++++--------------------
1 file changed, 138 insertions(+), 115 deletions(-)
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 4f70df3..78b4f64 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -121,26 +121,26 @@ static DEFINE_SPINLOCK(release_lock);
static const unsigned int dummy; /* for clarity in register access fns */
enum mos_regs {
- THR, /* serial port regs */
- RHR,
- IER,
- FCR,
- ISR,
- LCR,
- MCR,
- LSR,
- MSR,
- SPR,
- DLL,
- DLM,
- DPR, /* parallel port regs */
- DSR,
- DCR,
- ECR,
- SP1_REG, /* device control regs */
- SP2_REG, /* serial port 2 (7720 only) */
- PP_REG,
- SP_CONTROL_REG,
+ MOS7720_THR, /* serial port regs */
+ MOS7720_RHR,
+ MOS7720_IER,
+ MOS7720_FCR,
+ MOS7720_ISR,
+ MOS7720_LCR,
+ MOS7720_MCR,
+ MOS7720_LSR,
+ MOS7720_MSR,
+ MOS7720_SPR,
+ MOS7720_DLL,
+ MOS7720_DLM,
+ MOS7720_DPR, /* parallel port regs */
+ MOS7720_DSR,
+ MOS7720_DCR,
+ MOS7720_ECR,
+ MOS7720_SP1_REG, /* device control regs */
+ MOS7720_SP2_REG, /* serial port 2 (7720 only) */
+ MOS7720_PP_REG,
+ MOS7720_SP_CONTROL_REG,
};
/*
@@ -150,26 +150,26 @@ enum mos_regs {
static inline __u16 get_reg_index(enum mos_regs reg)
{
static const __u16 mos7715_index_lookup_table[] = {
- 0x00, /* THR */
- 0x00, /* RHR */
- 0x01, /* IER */
- 0x02, /* FCR */
- 0x02, /* ISR */
- 0x03, /* LCR */
- 0x04, /* MCR */
- 0x05, /* LSR */
- 0x06, /* MSR */
- 0x07, /* SPR */
- 0x00, /* DLL */
- 0x01, /* DLM */
- 0x00, /* DPR */
- 0x01, /* DSR */
- 0x02, /* DCR */
- 0x0a, /* ECR */
- 0x01, /* SP1_REG */
- 0x02, /* SP2_REG (7720 only) */
- 0x04, /* PP_REG (7715 only) */
- 0x08, /* SP_CONTROL_REG */
+ 0x00, /* MOS7720_THR */
+ 0x00, /* MOS7720_RHR */
+ 0x01, /* MOS7720_IER */
+ 0x02, /* MOS7720_FCR */
+ 0x02, /* MOS7720_ISR */
+ 0x03, /* MOS7720_LCR */
+ 0x04, /* MOS7720_MCR */
+ 0x05, /* MOS7720_LSR */
+ 0x06, /* MOS7720_MSR */
+ 0x07, /* MOS7720_SPR */
+ 0x00, /* MOS7720_DLL */
+ 0x01, /* MOS7720_DLM */
+ 0x00, /* MOS7720_DPR */
+ 0x01, /* MOS7720_DSR */
+ 0x02, /* MOS7720_DCR */
+ 0x0a, /* MOS7720_ECR */
+ 0x01, /* MOS7720_SP1_REG */
+ 0x02, /* MOS7720_SP2_REG (7720 only) */
+ 0x04, /* MOS7720_PP_REG (7715 only) */
+ 0x08, /* MOS7720_SP_CONTROL_REG */
};
return mos7715_index_lookup_table[reg];
}
@@ -181,10 +181,10 @@ static inline __u16 get_reg_index(enum mos_regs reg)
static inline __u16 get_reg_value(enum mos_regs reg,
unsigned int serial_portnum)
{
- if (reg >= SP1_REG) /* control reg */
+ if (reg >= MOS7720_SP1_REG) /* control reg */
return 0x0000;
- else if (reg >= DPR) /* parallel port reg (7715 only) */
+ else if (reg >= MOS7720_DPR) /* parallel port reg (7715 only) */
return 0x0100;
else /* serial port reg */
@@ -252,7 +252,8 @@ static inline int mos7715_change_mode(struct mos7715_parport *mos_parport,
enum mos7715_pp_modes mode)
{
mos_parport->shadowECR = mode;
- write_mos_reg(mos_parport->serial, dummy, ECR, mos_parport->shadowECR);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_ECR,
+ mos_parport->shadowECR);
return 0;
}
@@ -486,7 +487,7 @@ static void parport_mos7715_write_data(struct parport *pp, unsigned char d)
if (parport_prologue(pp) < 0)
return;
mos7715_change_mode(mos_parport, SPP);
- write_mos_reg(mos_parport->serial, dummy, DPR, (__u8)d);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_DPR, (__u8)d);
parport_epilogue(pp);
}
@@ -497,7 +498,7 @@ static unsigned char parport_mos7715_read_data(struct parport *pp)
if (parport_prologue(pp) < 0)
return 0;
- read_mos_reg(mos_parport->serial, dummy, DPR, &d);
+ read_mos_reg(mos_parport->serial, dummy, MOS7720_DPR, &d);
parport_epilogue(pp);
return d;
}
@@ -510,7 +511,7 @@ static void parport_mos7715_write_control(struct parport *pp, unsigned char d)
if (parport_prologue(pp) < 0)
return;
data = ((__u8)d & 0x0f) | (mos_parport->shadowDCR & 0xf0);
- write_mos_reg(mos_parport->serial, dummy, DCR, data);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR, data);
mos_parport->shadowDCR = data;
parport_epilogue(pp);
}
@@ -543,7 +544,8 @@ static unsigned char parport_mos7715_frob_control(struct parport *pp,
if (parport_prologue(pp) < 0)
return 0;
mos_parport->shadowDCR = (mos_parport->shadowDCR & (~mask)) ^ val;
- write_mos_reg(mos_parport->serial, dummy, DCR, mos_parport->shadowDCR);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR,
+ mos_parport->shadowDCR);
dcr = mos_parport->shadowDCR & 0x0f;
parport_epilogue(pp);
return dcr;
@@ -581,7 +583,8 @@ static void parport_mos7715_data_forward(struct parport *pp)
return;
mos7715_change_mode(mos_parport, PS2);
mos_parport->shadowDCR &= ~0x20;
- write_mos_reg(mos_parport->serial, dummy, DCR, mos_parport->shadowDCR);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR,
+ mos_parport->shadowDCR);
parport_epilogue(pp);
}
@@ -593,7 +596,8 @@ static void parport_mos7715_data_reverse(struct parport *pp)
return;
mos7715_change_mode(mos_parport, PS2);
mos_parport->shadowDCR |= 0x20;
- write_mos_reg(mos_parport->serial, dummy, DCR, mos_parport->shadowDCR);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR,
+ mos_parport->shadowDCR);
parport_epilogue(pp);
}
@@ -633,8 +637,10 @@ static void parport_mos7715_restore_state(struct parport *pp,
spin_unlock(&release_lock);
return;
}
- write_parport_reg_nonblock(mos_parport, DCR, mos_parport->shadowDCR);
- write_parport_reg_nonblock(mos_parport, ECR, mos_parport->shadowECR);
+ write_parport_reg_nonblock(mos_parport, MOS7720_DCR,
+ mos_parport->shadowDCR);
+ write_parport_reg_nonblock(mos_parport, MOS7720_ECR,
+ mos_parport->shadowECR);
spin_unlock(&release_lock);
}
@@ -714,14 +720,16 @@ static int mos7715_parport_init(struct usb_serial *serial)
init_completion(&mos_parport->syncmsg_compl);
/* cycle parallel port reset bit */
- write_mos_reg(mos_parport->serial, dummy, PP_REG, (__u8)0x80);
- write_mos_reg(mos_parport->serial, dummy, PP_REG, (__u8)0x00);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_PP_REG, (__u8)0x80);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_PP_REG, (__u8)0x00);
/* initialize device registers */
mos_parport->shadowDCR = DCR_INIT_VAL;
- write_mos_reg(mos_parport->serial, dummy, DCR, mos_parport->shadowDCR);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR,
+ mos_parport->shadowDCR);
mos_parport->shadowECR = ECR_INIT_VAL;
- write_mos_reg(mos_parport->serial, dummy, ECR, mos_parport->shadowECR);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_ECR,
+ mos_parport->shadowECR);
/* register with parport core */
mos_parport->pp = parport_register_port(0, PARPORT_IRQ_NONE,
@@ -1033,45 +1041,49 @@ static int mos7720_open(struct tty_struct *tty, struct usb_serial_port *port)
/* Initialize MCS7720 -- Write Init values to corresponding Registers
*
* Register Index
- * 0 : THR/RHR
- * 1 : IER
- * 2 : FCR
- * 3 : LCR
- * 4 : MCR
- * 5 : LSR
- * 6 : MSR
- * 7 : SPR
+ * 0 : MOS7720_THR/MOS7720_RHR
+ * 1 : MOS7720_IER
+ * 2 : MOS7720_FCR
+ * 3 : MOS7720_LCR
+ * 4 : MOS7720_MCR
+ * 5 : MOS7720_LSR
+ * 6 : MOS7720_MSR
+ * 7 : MOS7720_SPR
*
* 0x08 : SP1/2 Control Reg
*/
port_number = port->port_number;
- read_mos_reg(serial, port_number, LSR, &data);
+ read_mos_reg(serial, port_number, MOS7720_LSR, &data);
dev_dbg(&port->dev, "SS::%p LSR:%x\n", mos7720_port, data);
- write_mos_reg(serial, dummy, SP1_REG, 0x02);
- write_mos_reg(serial, dummy, SP2_REG, 0x02);
+ write_mos_reg(serial, dummy, MOS7720_SP1_REG, 0x02);
+ write_mos_reg(serial, dummy, MOS7720_SP2_REG, 0x02);
- write_mos_reg(serial, port_number, IER, 0x00);
- write_mos_reg(serial, port_number, FCR, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_IER, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_FCR, 0x00);
- write_mos_reg(serial, port_number, FCR, 0xcf);
+ write_mos_reg(serial, port_number, MOS7720_FCR, 0xcf);
mos7720_port->shadowLCR = 0x03;
- write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, MOS7720_LCR,
+ mos7720_port->shadowLCR);
mos7720_port->shadowMCR = 0x0b;
- write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
+ write_mos_reg(serial, port_number, MOS7720_MCR,
+ mos7720_port->shadowMCR);
- write_mos_reg(serial, port_number, SP_CONTROL_REG, 0x00);
- read_mos_reg(serial, dummy, SP_CONTROL_REG, &data);
+ write_mos_reg(serial, port_number, MOS7720_SP_CONTROL_REG, 0x00);
+ read_mos_reg(serial, dummy, MOS7720_SP_CONTROL_REG, &data);
data = data | (port->port_number + 1);
- write_mos_reg(serial, dummy, SP_CONTROL_REG, data);
+ write_mos_reg(serial, dummy, MOS7720_SP_CONTROL_REG, data);
mos7720_port->shadowLCR = 0x83;
- write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
- write_mos_reg(serial, port_number, THR, 0x0c);
- write_mos_reg(serial, port_number, IER, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_LCR,
+ mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, MOS7720_THR, 0x0c);
+ write_mos_reg(serial, port_number, MOS7720_IER, 0x00);
mos7720_port->shadowLCR = 0x03;
- write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
- write_mos_reg(serial, port_number, IER, 0x0c);
+ write_mos_reg(serial, port_number, MOS7720_LCR,
+ mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, MOS7720_IER, 0x0c);
response = usb_submit_urb(port->read_urb, GFP_KERNEL);
if (response)
@@ -1144,8 +1156,8 @@ static void mos7720_close(struct usb_serial_port *port)
usb_kill_urb(port->write_urb);
usb_kill_urb(port->read_urb);
- write_mos_reg(serial, port->port_number, MCR, 0x00);
- write_mos_reg(serial, port->port_number, IER, 0x00);
+ write_mos_reg(serial, port->port_number, MOS7720_MCR, 0x00);
+ write_mos_reg(serial, port->port_number, MOS7720_IER, 0x00);
mos7720_port->open = 0;
}
@@ -1169,7 +1181,8 @@ static void mos7720_break(struct tty_struct *tty, int break_state)
data = mos7720_port->shadowLCR & ~UART_LCR_SBC;
mos7720_port->shadowLCR = data;
- write_mos_reg(serial, port->port_number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, port->port_number, MOS7720_LCR,
+ mos7720_port->shadowLCR);
}
/*
@@ -1297,7 +1310,7 @@ static void mos7720_throttle(struct tty_struct *tty)
/* if we are implementing RTS/CTS, toggle that line */
if (tty->termios.c_cflag & CRTSCTS) {
mos7720_port->shadowMCR &= ~UART_MCR_RTS;
- write_mos_reg(port->serial, port->port_number, MCR,
+ write_mos_reg(port->serial, port->port_number, MOS7720_MCR,
mos7720_port->shadowMCR);
}
}
@@ -1327,7 +1340,7 @@ static void mos7720_unthrottle(struct tty_struct *tty)
/* if we are implementing RTS/CTS, toggle that line */
if (tty->termios.c_cflag & CRTSCTS) {
mos7720_port->shadowMCR |= UART_MCR_RTS;
- write_mos_reg(port->serial, port->port_number, MCR,
+ write_mos_reg(port->serial, port->port_number, MOS7720_MCR,
mos7720_port->shadowMCR);
}
}
@@ -1352,35 +1365,39 @@ static int set_higher_rates(struct moschip_port *mos7720_port,
dev_dbg(&port->dev, "Sending Setting Commands ..........\n");
port_number = port->port_number;
- write_mos_reg(serial, port_number, IER, 0x00);
- write_mos_reg(serial, port_number, FCR, 0x00);
- write_mos_reg(serial, port_number, FCR, 0xcf);
+ write_mos_reg(serial, port_number, MOS7720_IER, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_FCR, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_FCR, 0xcf);
mos7720_port->shadowMCR = 0x0b;
- write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
- write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_MCR,
+ mos7720_port->shadowMCR);
+ write_mos_reg(serial, dummy, MOS7720_SP_CONTROL_REG, 0x00);
/***********************************************
* Set for higher rates *
***********************************************/
/* writing baud rate verbatum into uart clock field clearly not right */
if (port_number == 0)
- sp_reg = SP1_REG;
+ sp_reg = MOS7720_SP1_REG;
else
- sp_reg = SP2_REG;
+ sp_reg = MOS7720_SP2_REG;
write_mos_reg(serial, dummy, sp_reg, baud * 0x10);
- write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x03);
+ write_mos_reg(serial, dummy, MOS7720_SP_CONTROL_REG, 0x03);
mos7720_port->shadowMCR = 0x2b;
- write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
+ write_mos_reg(serial, port_number, MOS7720_MCR,
+ mos7720_port->shadowMCR);
/***********************************************
* Set DLL/DLM
***********************************************/
mos7720_port->shadowLCR = mos7720_port->shadowLCR | UART_LCR_DLAB;
- write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
- write_mos_reg(serial, port_number, DLL, 0x01);
- write_mos_reg(serial, port_number, DLM, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_LCR,
+ mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, MOS7720_DLL, 0x01);
+ write_mos_reg(serial, port_number, MOS7720_DLM, 0x00);
mos7720_port->shadowLCR = mos7720_port->shadowLCR & ~UART_LCR_DLAB;
- write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, MOS7720_LCR,
+ mos7720_port->shadowLCR);
return 0;
}
@@ -1488,15 +1505,16 @@ static int send_cmd_write_baud_rate(struct moschip_port *mos7720_port,
/* Enable access to divisor latch */
mos7720_port->shadowLCR = mos7720_port->shadowLCR | UART_LCR_DLAB;
- write_mos_reg(serial, number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, number, MOS7720_LCR, mos7720_port->shadowLCR);
/* Write the divisor */
- write_mos_reg(serial, number, DLL, (__u8)(divisor & 0xff));
- write_mos_reg(serial, number, DLM, (__u8)((divisor & 0xff00) >> 8));
+ write_mos_reg(serial, number, MOS7720_DLL, (__u8)(divisor & 0xff));
+ write_mos_reg(serial, number, MOS7720_DLM,
+ (__u8)((divisor & 0xff00) >> 8));
/* Disable access to divisor latch */
mos7720_port->shadowLCR = mos7720_port->shadowLCR & ~UART_LCR_DLAB;
- write_mos_reg(serial, number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, number, MOS7720_LCR, mos7720_port->shadowLCR);
return status;
}
@@ -1600,14 +1618,16 @@ static void change_port_settings(struct tty_struct *tty,
/* Disable Interrupts */
- write_mos_reg(serial, port_number, IER, 0x00);
- write_mos_reg(serial, port_number, FCR, 0x00);
- write_mos_reg(serial, port_number, FCR, 0xcf);
+ write_mos_reg(serial, port_number, MOS7720_IER, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_FCR, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_FCR, 0xcf);
/* Send the updated LCR value to the mos7720 */
- write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, MOS7720_LCR,
+ mos7720_port->shadowLCR);
mos7720_port->shadowMCR = 0x0b;
- write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
+ write_mos_reg(serial, port_number, MOS7720_MCR,
+ mos7720_port->shadowMCR);
/* set up the MCR register and send it to the mos7720 */
mos7720_port->shadowMCR = UART_MCR_OUT2;
@@ -1619,14 +1639,17 @@ static void change_port_settings(struct tty_struct *tty,
/* To set hardware flow control to the specified *
* serial port, in SP1/2_CONTROL_REG */
if (port_number)
- write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x01);
+ write_mos_reg(serial, dummy, MOS7720_SP_CONTROL_REG,
+ 0x01);
else
- write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x02);
+ write_mos_reg(serial, dummy, MOS7720_SP_CONTROL_REG,
+ 0x02);
} else
mos7720_port->shadowMCR &= ~(UART_MCR_XONANY);
- write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
+ write_mos_reg(serial, port_number, MOS7720_MCR,
+ mos7720_port->shadowMCR);
/* Determine divisor based on baud rate */
baud = tty_get_baud_rate(tty);
@@ -1639,7 +1662,7 @@ static void change_port_settings(struct tty_struct *tty,
if (baud >= 230400) {
set_higher_rates(mos7720_port, baud);
/* Enable Interrupts */
- write_mos_reg(serial, port_number, IER, 0x0c);
+ write_mos_reg(serial, port_number, MOS7720_IER, 0x0c);
return;
}
@@ -1650,7 +1673,7 @@ static void change_port_settings(struct tty_struct *tty,
if (cflag & CBAUD)
tty_encode_baud_rate(tty, baud, baud);
/* Enable Interrupts */
- write_mos_reg(serial, port_number, IER, 0x0c);
+ write_mos_reg(serial, port_number, MOS7720_IER, 0x0c);
if (port->read_urb->status != -EINPROGRESS) {
status = usb_submit_urb(port->read_urb, GFP_KERNEL);
@@ -1725,7 +1748,7 @@ static int get_lsr_info(struct tty_struct *tty,
count = mos7720_chars_in_buffer(tty);
if (count == 0) {
- read_mos_reg(port->serial, port_number, LSR, &data);
+ read_mos_reg(port->serial, port_number, MOS7720_LSR, &data);
if ((data & (UART_LSR_TEMT | UART_LSR_THRE))
== (UART_LSR_TEMT | UART_LSR_THRE)) {
dev_dbg(&port->dev, "%s -- Empty\n", __func__);
@@ -1782,7 +1805,7 @@ static int mos7720_tiocmset(struct tty_struct *tty,
mcr &= ~UART_MCR_LOOP;
mos7720_port->shadowMCR = mcr;
- write_mos_reg(port->serial, port->port_number, MCR,
+ write_mos_reg(port->serial, port->port_number, MOS7720_MCR,
mos7720_port->shadowMCR);
return 0;
@@ -1827,7 +1850,7 @@ static int set_modem_info(struct moschip_port *mos7720_port, unsigned int cmd,
}
mos7720_port->shadowMCR = mcr;
- write_mos_reg(port->serial, port->port_number, MCR,
+ write_mos_reg(port->serial, port->port_number, MOS7720_MCR,
mos7720_port->shadowMCR);
return 0;
@@ -1942,7 +1965,7 @@ static int mos7720_startup(struct usb_serial *serial)
}
#endif
/* LSR For Port 1 */
- read_mos_reg(serial, 0, LSR, &data);
+ read_mos_reg(serial, 0, MOS7720_LSR, &data);
dev_dbg(&dev->dev, "LSR:%x\n", data);
return 0;
--
1.8.1.2
--
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