read_zsreg — Read a register from a Z85230


u8 read_zsreg (struct z8530_channel * c,
 u8 reg);


struct z8530_channel * c

Z8530 channel to read from (2 per chip)

u8 reg

Register to read FIXME: Use a spinlock.

Most of the Z8530 registers are indexed off the control registers. A read is done by writing to the control register and reading the register back. The caller must hold the lock