/* Power control is shared with between one of the CF slots and SD */
static void spitz_card_pwr_ctrl(int device, unsigned short new_cpr)
{
unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
if (new_cpr & 0x0007) {
gpio_set_value(SPITZ_GPIO_CF_POWER, 1);
if (!(cpr & 0x0002) && !(cpr & 0x0004))
mdelay(5);
if (device == SPITZ_PWR_CF)
cpr |= 0x0002;
if (device == SPITZ_PWR_SD)
cpr |= 0x0004;
write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
} else {
if (device == SPITZ_PWR_CF)
cpr &= ~0x0002;
if (device == SPITZ_PWR_SD)
cpr &= ~0x0004;
if (!(cpr & 0x0002) && !(cpr & 0x0004)) {
write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, 0x0000);
mdelay(1);
gpio_set_value(SPITZ_GPIO_CF_POWER, 0);
} else {
write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
}
}
}
static void collie_set_vpp(int vpp)
{
write_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR) | COLLIE_SCP_VPEN);
if (vpp)
write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) | COLLIE_SCP_VPEN);
else
write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) & ~COLLIE_SCP_VPEN);
}
static void sharpsl_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
sharpsl_pcmcia_init_reset(skt);
/* Enable interrupt */
write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_IMR, 0x00C0);
write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_MCR, 0x0101);
SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
}
static void sharpsl_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
sharpsl_pcmcia_init_reset(&SCOOP_DEV[skt->nr]);
/* Enable interrupt */
write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_IMR, 0x00C0);
write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_MCR, 0x0101);
SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
if (machine_is_collie())
/* We need to disable SS_OUTPUT_ENA here. */
write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR, read_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR) & ~0x0080);
}
/* Power control is shared with between one of the CF slots and SD */
static void __maybe_unused spitz_card_pwr_ctrl(uint8_t enable, uint8_t new_cpr)
{
unsigned short cpr;
unsigned long flags;
if (new_cpr & 0x7) {
gpio_set_value(SPITZ_GPIO_CF_POWER, 1);
mdelay(5);
}
local_irq_save(flags);
cpr = read_scoop_reg(&spitz_scoop_1_device.dev, SCOOP_CPR);
if (enable & new_cpr)
cpr |= new_cpr;
else
cpr &= ~enable;
write_scoop_reg(&spitz_scoop_1_device.dev, SCOOP_CPR, cpr);
local_irq_restore(flags);
if (!(cpr & 0x7)) {
mdelay(1);
gpio_set_value(SPITZ_GPIO_CF_POWER, 0);
}
}
static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr)
{
/* Only need to override behaviour for slot 0 */
if (nr == 0)
spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr);
else
write_scoop_reg(scoop, SCOOP_CPR, cpr);
}
static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr)
{
if (nr == 0)
spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr);
else
write_scoop_reg(scoop, SCOOP_CPR, cpr);
}
static void spitz_pcmcia_pwr(struct device *scoop, uint16_t cpr, int nr)
{
/* Only need to override behaviour for slot 0 */
if (nr == 0)
spitz_card_pwr_ctrl(
cpr & (SCOOP_CPR_CF_3V | SCOOP_CPR_CF_XV), cpr);
else
write_scoop_reg(scoop, SCOOP_CPR, cpr);
}
static void sharpsl_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
/* CF_BUS_OFF */
sharpsl_pcmcia_init_reset(&SCOOP_DEV[skt->nr]);
if (machine_is_collie())
/* We need to disable SS_OUTPUT_ENA here. */
write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR, read_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR) & ~0x0080);
}
static void sharpsl_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
struct pcmcia_state *state)
{
unsigned short cpr, csr;
struct device *scoop = SCOOP_DEV[skt->nr].dev;
cpr = read_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR);
write_scoop_reg(scoop, SCOOP_IRM, 0x00FF);
write_scoop_reg(scoop, SCOOP_ISR, 0x0000);
write_scoop_reg(scoop, SCOOP_IRM, 0x0000);
csr = read_scoop_reg(scoop, SCOOP_CSR);
if (csr & 0x0004) {
/* card eject */
write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
}
else if (!(SCOOP_DEV[skt->nr].keep_vs & NO_KEEP_VS)) {
/* keep vs1,vs2 */
write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
csr |= SCOOP_DEV[skt->nr].keep_vs;
}
else if (cpr & 0x0003) {
/* power on */
write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
SCOOP_DEV[skt->nr].keep_vs = (csr & 0x00C0);
}
else {
/* card detect */
if ((machine_is_spitz() || machine_is_borzoi()) && skt->nr == 1) {
write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
} else {
write_scoop_reg(scoop, SCOOP_CDR, 0x0002);
}
}
state->detect = (csr & 0x0004) ? 0 : 1;
state->ready = (csr & 0x0002) ? 1 : 0;
state->bvd1 = (csr & 0x0010) ? 1 : 0;
state->bvd2 = (csr & 0x0020) ? 1 : 0;
state->wrprot = (csr & 0x0008) ? 1 : 0;
state->vs_3v = (csr & 0x0040) ? 0 : 1;
state->vs_Xv = (csr & 0x0080) ? 0 : 1;
if ((cpr & 0x0080) && ((cpr & 0x8040) != 0x8040)) {
printk(KERN_ERR "sharpsl_pcmcia_socket_state(): CPR=%04X, Low voltage!\n", cpr);
}
}
static void sharpsl_pcmcia_init_reset(struct soc_pcmcia_socket *skt)
{
struct scoop_pcmcia_dev *scoopdev = &SCOOP_DEV[skt->nr];
reset_scoop(scoopdev->dev);
/* Shared power controls need to be handled carefully */
if (platform_scoop_config->power_ctrl)
platform_scoop_config->power_ctrl(scoopdev->dev, 0x0000, skt->nr);
else
write_scoop_reg(scoopdev->dev, SCOOP_CPR, 0x0000);
scoopdev->keep_vs = NO_KEEP_VS;
scoopdev->keep_rd = 0;
}
static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
unsigned long flags;
struct device *scoop = SCOOP_DEV[skt->nr].dev;
unsigned short cpr, ncpr, ccr, nccr, mcr, nmcr, imr, nimr;
switch (state->Vcc) {
case 0: break;
case 33: break;
case 50: break;
default:
printk(KERN_ERR "sharpsl_pcmcia_configure_socket(): bad Vcc %u\n", state->Vcc);
return -1;
}
if ((state->Vpp!=state->Vcc) && (state->Vpp!=0)) {
printk(KERN_ERR "CF slot cannot support Vpp %u\n", state->Vpp);
return -1;
}
local_irq_save(flags);
nmcr = (mcr = read_scoop_reg(scoop, SCOOP_MCR)) & ~0x0010;
ncpr = (cpr = read_scoop_reg(scoop, SCOOP_CPR)) & ~0x0083;
nccr = (ccr = read_scoop_reg(scoop, SCOOP_CCR)) & ~0x0080;
nimr = (imr = read_scoop_reg(scoop, SCOOP_IMR)) & ~0x003E;
if ((machine_is_spitz() || machine_is_borzoi() || machine_is_akita()) && skt->nr == 0) {
ncpr |= (state->Vcc == 33) ? 0x0002 :
(state->Vcc == 50) ? 0x0002 : 0;
} else {
ncpr |= (state->Vcc == 33) ? 0x0001 :
(state->Vcc == 50) ? 0x0002 : 0;
}
nmcr |= (state->flags&SS_IOCARD) ? 0x0010 : 0;
ncpr |= (state->flags&SS_OUTPUT_ENA) ? 0x0080 : 0;
nccr |= (state->flags&SS_RESET)? 0x0080: 0;
nimr |= ((skt->status&SS_DETECT) ? 0x0004 : 0)|
((skt->status&SS_READY) ? 0x0002 : 0)|
((skt->status&SS_BATDEAD)? 0x0010 : 0)|
((skt->status&SS_BATWARN)? 0x0020 : 0)|
((skt->status&SS_STSCHG) ? 0x0010 : 0)|
((skt->status&SS_WRPROT) ? 0x0008 : 0);
if (!(ncpr & 0x0003)) {
SCOOP_DEV[skt->nr].keep_rd = 0;
} else if (!SCOOP_DEV[skt->nr].keep_rd) {
if (nccr & 0x0080)
SCOOP_DEV[skt->nr].keep_rd = 1;
else
nccr |= 0x0080;
}
if (mcr != nmcr)
write_scoop_reg(scoop, SCOOP_MCR, nmcr);
if (cpr != ncpr) {
if (platform_scoop_config->power_ctrl)
platform_scoop_config->power_ctrl(scoop, ncpr , skt->nr);
else
write_scoop_reg(scoop, SCOOP_CPR, ncpr);
}
if (ccr != nccr)
write_scoop_reg(scoop, SCOOP_CCR, nccr);
if (imr != nimr)
write_scoop_reg(scoop, SCOOP_IMR, nimr);
local_irq_restore(flags);
return 0;
}
